blob: 7d61d0f2b33535a50d5617315ede695d073b5149 [file] [log] [blame]
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>Base64 xref</title>
<link type="text/css" rel="stylesheet" href="../../../../stylesheet.css" />
</head>
<body>
<div id="overview"><a href="../../../../../apidocs/org/trafodion/dcs/util/Base64.html">View Javadoc</a></div><pre>
<a class="jxr_linenumber" name="1" href="#1">1</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="2" href="#2">2</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="3" href="#3">3</a> <em class="jxr_javadoccomment"> * Copyright 2007 The Apache Software Foundation</em>
<a class="jxr_linenumber" name="4" href="#4">4</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="5" href="#5">5</a> <em class="jxr_javadoccomment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
<a class="jxr_linenumber" name="6" href="#6">6</a> <em class="jxr_javadoccomment"> * or more contributor license agreements. See the NOTICE file</em>
<a class="jxr_linenumber" name="7" href="#7">7</a> <em class="jxr_javadoccomment"> * distributed with this work for additional information</em>
<a class="jxr_linenumber" name="8" href="#8">8</a> <em class="jxr_javadoccomment"> * regarding copyright ownership. The ASF licenses this file</em>
<a class="jxr_linenumber" name="9" href="#9">9</a> <em class="jxr_javadoccomment"> * to you under the Apache License, Version 2.0 (the</em>
<a class="jxr_linenumber" name="10" href="#10">10</a> <em class="jxr_javadoccomment"> * "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="11" href="#11">11</a> <em class="jxr_javadoccomment"> * with the License. You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="12" href="#12">12</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="13" href="#13">13</a> <em class="jxr_javadoccomment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="14" href="#14">14</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="15" href="#15">15</a> <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="16" href="#16">16</a> <em class="jxr_javadoccomment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="17" href="#17">17</a> <em class="jxr_javadoccomment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="18" href="#18">18</a> <em class="jxr_javadoccomment"> * See the License for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="19" href="#19">19</a> <em class="jxr_javadoccomment"> * limitations under the License.</em>
<a class="jxr_linenumber" name="20" href="#20">20</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="21" href="#21">21</a>
<a class="jxr_linenumber" name="22" href="#22">22</a> <strong class="jxr_keyword">package</strong> org.trafodion.dcs.util;
<a class="jxr_linenumber" name="23" href="#23">23</a>
<a class="jxr_linenumber" name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
<a class="jxr_linenumber" name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.LogFactory;
<a class="jxr_linenumber" name="26" href="#26">26</a>
<a class="jxr_linenumber" name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> java.io.BufferedInputStream;
<a class="jxr_linenumber" name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> java.io.BufferedOutputStream;
<a class="jxr_linenumber" name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> java.io.ByteArrayInputStream;
<a class="jxr_linenumber" name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> java.io.ByteArrayOutputStream;
<a class="jxr_linenumber" name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> java.io.File;
<a class="jxr_linenumber" name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> java.io.FileInputStream;
<a class="jxr_linenumber" name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> java.io.FileOutputStream;
<a class="jxr_linenumber" name="34" href="#34">34</a> <strong class="jxr_keyword">import</strong> java.io.FilterInputStream;
<a class="jxr_linenumber" name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> java.io.FilterOutputStream;
<a class="jxr_linenumber" name="36" href="#36">36</a> <strong class="jxr_keyword">import</strong> java.io.IOException;
<a class="jxr_linenumber" name="37" href="#37">37</a> <strong class="jxr_keyword">import</strong> java.io.InputStream;
<a class="jxr_linenumber" name="38" href="#38">38</a> <strong class="jxr_keyword">import</strong> java.io.ObjectInputStream;
<a class="jxr_linenumber" name="39" href="#39">39</a> <strong class="jxr_keyword">import</strong> java.io.ObjectOutputStream;
<a class="jxr_linenumber" name="40" href="#40">40</a> <strong class="jxr_keyword">import</strong> java.io.OutputStream;
<a class="jxr_linenumber" name="41" href="#41">41</a> <strong class="jxr_keyword">import</strong> java.io.Serializable;
<a class="jxr_linenumber" name="42" href="#42">42</a> <strong class="jxr_keyword">import</strong> java.io.UnsupportedEncodingException;
<a class="jxr_linenumber" name="43" href="#43">43</a> <strong class="jxr_keyword">import</strong> java.util.zip.GZIPInputStream;
<a class="jxr_linenumber" name="44" href="#44">44</a> <strong class="jxr_keyword">import</strong> java.util.zip.GZIPOutputStream;
<a class="jxr_linenumber" name="45" href="#45">45</a>
<a class="jxr_linenumber" name="46" href="#46">46</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="47" href="#47">47</a> <em class="jxr_javadoccomment"> * Encodes and decodes to and from Base64 notation.</em>
<a class="jxr_linenumber" name="48" href="#48">48</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="49" href="#49">49</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="50" href="#50">50</a> <em class="jxr_javadoccomment"> * Homepage: &lt;a href="<a href="http://iharder.net/base64" target="alexandria_uri">http://iharder.net/base64</a>"&gt;<a href="http://iharder.net/base64" target="alexandria_uri">http://iharder.net/base64</a>&lt;/a&gt;.</em>
<a class="jxr_linenumber" name="51" href="#51">51</a> <em class="jxr_javadoccomment"> * &lt;/p&gt;</em>
<a class="jxr_linenumber" name="52" href="#52">52</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="53" href="#53">53</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="54" href="#54">54</a> <em class="jxr_javadoccomment"> * Change Log:</em>
<a class="jxr_linenumber" name="55" href="#55">55</a> <em class="jxr_javadoccomment"> * &lt;/p&gt;</em>
<a class="jxr_linenumber" name="56" href="#56">56</a> <em class="jxr_javadoccomment"> * &lt;ul&gt;</em>
<a class="jxr_linenumber" name="57" href="#57">57</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v2.2.1 - Fixed bug using URL_SAFE and ORDERED encodings. Fixed bug</em>
<a class="jxr_linenumber" name="58" href="#58">58</a> <em class="jxr_javadoccomment"> * when using very small files (~&lt; 40 bytes).&lt;/li&gt;</em>
<a class="jxr_linenumber" name="59" href="#59">59</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v2.2 - Added some helper methods for encoding/decoding directly from</em>
<a class="jxr_linenumber" name="60" href="#60">60</a> <em class="jxr_javadoccomment"> * one file to the next. Also added a main() method to support command</em>
<a class="jxr_linenumber" name="61" href="#61">61</a> <em class="jxr_javadoccomment"> * line encoding/decoding from one file to the next. Also added these</em>
<a class="jxr_linenumber" name="62" href="#62">62</a> <em class="jxr_javadoccomment"> * Base64 dialects:</em>
<a class="jxr_linenumber" name="63" href="#63">63</a> <em class="jxr_javadoccomment"> * &lt;ol&gt;</em>
<a class="jxr_linenumber" name="64" href="#64">64</a> <em class="jxr_javadoccomment"> * &lt;li&gt;The default is RFC3548 format.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="65" href="#65">65</a> <em class="jxr_javadoccomment"> * &lt;li&gt;Using Base64.URLSAFE generates URL and file name friendly format as</em>
<a class="jxr_linenumber" name="66" href="#66">66</a> <em class="jxr_javadoccomment"> * described in Section 4 of RFC3548.</em>
<a class="jxr_linenumber" name="67" href="#67">67</a> <em class="jxr_javadoccomment"> * <a href="http://www.faqs.org/rfcs/rfc3548.html&lt;/li&gt;" target="alexandria_uri">http://www.faqs.org/rfcs/rfc3548.html&lt;/li&gt;</a></em>
<a class="jxr_linenumber" name="68" href="#68">68</a> <em class="jxr_javadoccomment"> * &lt;li&gt;Using Base64.ORDERED generates URL and file name friendly format</em>
<a class="jxr_linenumber" name="69" href="#69">69</a> <em class="jxr_javadoccomment"> * that preserves lexical ordering as described in</em>
<a class="jxr_linenumber" name="70" href="#70">70</a> <em class="jxr_javadoccomment"> * <a href="http://www.faqs.org/qa/rfcc-1940.html&lt;/li&gt;" target="alexandria_uri">http://www.faqs.org/qa/rfcc-1940.html&lt;/li&gt;</a></em>
<a class="jxr_linenumber" name="71" href="#71">71</a> <em class="jxr_javadoccomment"> * &lt;/ol&gt;</em>
<a class="jxr_linenumber" name="72" href="#72">72</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="73" href="#73">73</a> <em class="jxr_javadoccomment"> * Special thanks to Jim Kellerman at &lt;a href="<a href="http://www.powerset.com/" target="alexandria_uri">http://www.powerset.com/</a>"&gt;</em>
<a class="jxr_linenumber" name="74" href="#74">74</a> <em class="jxr_javadoccomment"> * <a href="http://www.powerset.com/&lt;/a&gt;" target="alexandria_uri">http://www.powerset.com/&lt;/a&gt;</a> for contributing the new Base64 dialects.</em>
<a class="jxr_linenumber" name="75" href="#75">75</a> <em class="jxr_javadoccomment"> * &lt;/li&gt;</em>
<a class="jxr_linenumber" name="76" href="#76">76</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="77" href="#77">77</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v2.1 - Cleaned up javadoc comments and unused variables and methods.</em>
<a class="jxr_linenumber" name="78" href="#78">78</a> <em class="jxr_javadoccomment"> * Added some convenience methods for reading and writing to and from files.</em>
<a class="jxr_linenumber" name="79" href="#79">79</a> <em class="jxr_javadoccomment"> * &lt;/li&gt;</em>
<a class="jxr_linenumber" name="80" href="#80">80</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v2.0.2 - Now specifies UTF-8 encoding in places where the code fails on</em>
<a class="jxr_linenumber" name="81" href="#81">81</a> <em class="jxr_javadoccomment"> * systems with other encodings (like EBCDIC).&lt;/li&gt;</em>
<a class="jxr_linenumber" name="82" href="#82">82</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v2.0.1 - Fixed an error when decoding a single byte, that is, when the</em>
<a class="jxr_linenumber" name="83" href="#83">83</a> <em class="jxr_javadoccomment"> * encoded data was a single byte.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="84" href="#84">84</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v2.0 - I got rid of methods that used booleans to set options. Now</em>
<a class="jxr_linenumber" name="85" href="#85">85</a> <em class="jxr_javadoccomment"> * everything is more consolidated and cleaner. The code now detects when</em>
<a class="jxr_linenumber" name="86" href="#86">86</a> <em class="jxr_javadoccomment"> * data that's being decoded is gzip-compressed and will decompress it</em>
<a class="jxr_linenumber" name="87" href="#87">87</a> <em class="jxr_javadoccomment"> * automatically. Generally things are cleaner. You'll probably have to</em>
<a class="jxr_linenumber" name="88" href="#88">88</a> <em class="jxr_javadoccomment"> * change some method calls that you were making to support the new options</em>
<a class="jxr_linenumber" name="89" href="#89">89</a> <em class="jxr_javadoccomment"> * format (&lt;tt&gt;int&lt;/tt&gt;s that you "OR" together).&lt;/li&gt;</em>
<a class="jxr_linenumber" name="90" href="#90">90</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v1.5.1 - Fixed bug when decompressing and decoding to a byte[] using</em>
<a class="jxr_linenumber" name="91" href="#91">91</a> <em class="jxr_javadoccomment"> * &lt;tt&gt;decode( String s, boolean gzipCompressed )&lt;/tt&gt;. Added the ability to</em>
<a class="jxr_linenumber" name="92" href="#92">92</a> <em class="jxr_javadoccomment"> * "suspend" encoding in the Output Stream so you can turn on and off the</em>
<a class="jxr_linenumber" name="93" href="#93">93</a> <em class="jxr_javadoccomment"> * encoding if you need to embed base64 data in an otherwise "normal" stream</em>
<a class="jxr_linenumber" name="94" href="#94">94</a> <em class="jxr_javadoccomment"> * (like an XML file).&lt;/li&gt;</em>
<a class="jxr_linenumber" name="95" href="#95">95</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v1.5 - Output stream pases on flush() command but doesn't do anything</em>
<a class="jxr_linenumber" name="96" href="#96">96</a> <em class="jxr_javadoccomment"> * itself. This helps when using GZIP streams. Added the ability to</em>
<a class="jxr_linenumber" name="97" href="#97">97</a> <em class="jxr_javadoccomment"> * GZip-compress objects before encoding them.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="98" href="#98">98</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v1.4 - Added helper methods to read/write files.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="99" href="#99">99</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v1.3.6 - Fixed OutputStream.flush() so that 'position' is reset.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="100" href="#100">100</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v1.3.5 - Added flag to turn on and off line breaks. Fixed bug in input</em>
<a class="jxr_linenumber" name="101" href="#101">101</a> <em class="jxr_javadoccomment"> * stream where last buffer being read, if not completely full, was not</em>
<a class="jxr_linenumber" name="102" href="#102">102</a> <em class="jxr_javadoccomment"> * returned.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="103" href="#103">103</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v1.3.4 - Fixed when "improperly padded stream" error was thrown at the</em>
<a class="jxr_linenumber" name="104" href="#104">104</a> <em class="jxr_javadoccomment"> * wrong time.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="105" href="#105">105</a> <em class="jxr_javadoccomment"> * &lt;li&gt;v1.3.3 - Fixed I/O streams which were totally messed up.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="106" href="#106">106</a> <em class="jxr_javadoccomment"> * &lt;/ul&gt;</em>
<a class="jxr_linenumber" name="107" href="#107">107</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment"> * I am placing this code in the Public Domain. Do with it as you will. This</em>
<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment"> * software comes with no guarantees or warranties but with plenty of</em>
<a class="jxr_linenumber" name="111" href="#111">111</a> <em class="jxr_javadoccomment"> * well-wishing instead!</em>
<a class="jxr_linenumber" name="112" href="#112">112</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="113" href="#113">113</a> <em class="jxr_javadoccomment"> * Please visit &lt;a href="<a href="http://iharder.net/base64" target="alexandria_uri">http://iharder.net/base64</a>"&gt;<a href="http://iharder.net/base64" target="alexandria_uri">http://iharder.net/base64</a>&lt;/a&gt;</em>
<a class="jxr_linenumber" name="114" href="#114">114</a> <em class="jxr_javadoccomment"> * periodically to check for updates or to contribute improvements.</em>
<a class="jxr_linenumber" name="115" href="#115">115</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="116" href="#116">116</a> <em class="jxr_javadoccomment"> * author: Robert Harder, rob@iharder.net</em>
<a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment"> * &lt;br&gt;</em>
<a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_javadoccomment"> * version: 2.2.1</em>
<a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="120" href="#120">120</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/trafodion/dcs/util/Base64.html">Base64</a> {
<a class="jxr_linenumber" name="121" href="#121">121</a>
<a class="jxr_linenumber" name="122" href="#122">122</a> <em class="jxr_comment">/*<em class="jxr_comment"> ******** P U B L I C F I E L D S ******** */</em></em>
<a class="jxr_linenumber" name="123" href="#123">123</a>
<a class="jxr_linenumber" name="124" href="#124">124</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> No options specified. Value is zero. */</em>
<a class="jxr_linenumber" name="125" href="#125">125</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> NO_OPTIONS = 0;
<a class="jxr_linenumber" name="126" href="#126">126</a>
<a class="jxr_linenumber" name="127" href="#127">127</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Specify encoding. */</em>
<a class="jxr_linenumber" name="128" href="#128">128</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> ENCODE = 1;
<a class="jxr_linenumber" name="129" href="#129">129</a>
<a class="jxr_linenumber" name="130" href="#130">130</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Specify decoding. */</em>
<a class="jxr_linenumber" name="131" href="#131">131</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> DECODE = 0;
<a class="jxr_linenumber" name="132" href="#132">132</a>
<a class="jxr_linenumber" name="133" href="#133">133</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Specify that data should be gzip-compressed. */</em>
<a class="jxr_linenumber" name="134" href="#134">134</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> GZIP = 2;
<a class="jxr_linenumber" name="135" href="#135">135</a>
<a class="jxr_linenumber" name="136" href="#136">136</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Don't break lines when encoding (violates strict Base64 specification) */</em>
<a class="jxr_linenumber" name="137" href="#137">137</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> DONT_BREAK_LINES = 8;
<a class="jxr_linenumber" name="138" href="#138">138</a>
<a class="jxr_linenumber" name="139" href="#139">139</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="140" href="#140">140</a> <em class="jxr_javadoccomment"> * Encode using Base64-like encoding that is URL and Filename safe as</em>
<a class="jxr_linenumber" name="141" href="#141">141</a> <em class="jxr_javadoccomment"> * described in Section 4 of RFC3548:</em>
<a class="jxr_linenumber" name="142" href="#142">142</a> <em class="jxr_javadoccomment"> * &lt;a href="<a href="http://www.faqs.org/rfcs/rfc3548.html" target="alexandria_uri">http://www.faqs.org/rfcs/rfc3548.html</a>"&gt;</em>
<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment"> * <a href="http://www.faqs.org/rfcs/rfc3548.html&lt;/a&gt;." target="alexandria_uri">http://www.faqs.org/rfcs/rfc3548.html&lt;/a&gt;.</a></em>
<a class="jxr_linenumber" name="144" href="#144">144</a> <em class="jxr_javadoccomment"> * It is important to note that data encoded this way is &lt;em&gt;not&lt;/em&gt;</em>
<a class="jxr_linenumber" name="145" href="#145">145</a> <em class="jxr_javadoccomment"> * officially valid Base64, or at the very least should not be called Base64</em>
<a class="jxr_linenumber" name="146" href="#146">146</a> <em class="jxr_javadoccomment"> * without also specifying that is was encoded using the URL and</em>
<a class="jxr_linenumber" name="147" href="#147">147</a> <em class="jxr_javadoccomment"> * Filename safe dialect.</em>
<a class="jxr_linenumber" name="148" href="#148">148</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="149" href="#149">149</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> URL_SAFE = 16;
<a class="jxr_linenumber" name="150" href="#150">150</a>
<a class="jxr_linenumber" name="151" href="#151">151</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="152" href="#152">152</a> <em class="jxr_javadoccomment"> * Encode using the special "ordered" dialect of Base64 described here:</em>
<a class="jxr_linenumber" name="153" href="#153">153</a> <em class="jxr_javadoccomment"> * &lt;a href="<a href="http://www.faqs.org/qa/rfcc-1940.html" target="alexandria_uri">http://www.faqs.org/qa/rfcc-1940.html</a>"&gt;</em>
<a class="jxr_linenumber" name="154" href="#154">154</a> <em class="jxr_javadoccomment"> * <a href="http://www.faqs.org/qa/rfcc-1940.html&lt;/a&gt;." target="alexandria_uri">http://www.faqs.org/qa/rfcc-1940.html&lt;/a&gt;.</a></em>
<a class="jxr_linenumber" name="155" href="#155">155</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="156" href="#156">156</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> ORDERED = 32;
<a class="jxr_linenumber" name="157" href="#157">157</a>
<a class="jxr_linenumber" name="158" href="#158">158</a> <em class="jxr_comment">/*<em class="jxr_comment"> ******** P R I V A T E F I E L D S ******** */</em></em>
<a class="jxr_linenumber" name="159" href="#159">159</a>
<a class="jxr_linenumber" name="160" href="#160">160</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log LOG = LogFactory.getLog(Base64.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="161" href="#161">161</a>
<a class="jxr_linenumber" name="162" href="#162">162</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Maximum line length (76) of Base64 output. */</em>
<a class="jxr_linenumber" name="163" href="#163">163</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> MAX_LINE_LENGTH = 76;
<a class="jxr_linenumber" name="164" href="#164">164</a>
<a class="jxr_linenumber" name="165" href="#165">165</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> The equals sign (=) as a byte. */</em>
<a class="jxr_linenumber" name="166" href="#166">166</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte EQUALS_SIGN = (byte) '=';
<a class="jxr_linenumber" name="167" href="#167">167</a>
<a class="jxr_linenumber" name="168" href="#168">168</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> The new line character (\n) as a byte. */</em>
<a class="jxr_linenumber" name="169" href="#169">169</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte NEW_LINE = (byte) '\n';
<a class="jxr_linenumber" name="170" href="#170">170</a>
<a class="jxr_linenumber" name="171" href="#171">171</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Preferred encoding. */</em>
<a class="jxr_linenumber" name="172" href="#172">172</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> String PREFERRED_ENCODING = <span class="jxr_string">"UTF-8"</span>;
<a class="jxr_linenumber" name="173" href="#173">173</a>
<a class="jxr_linenumber" name="174" href="#174">174</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte WHITE_SPACE_ENC = -5; <em class="jxr_comment">// Indicates white space</em>
<a class="jxr_linenumber" name="175" href="#175">175</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte EQUALS_SIGN_ENC = -1; <em class="jxr_comment">// Indicates equals sign</em>
<a class="jxr_linenumber" name="176" href="#176">176</a>
<a class="jxr_linenumber" name="177" href="#177">177</a> <em class="jxr_comment">/*<em class="jxr_comment"> ******** S T A N D A R D B A S E 6 4 A L P H A B E T ******** */</em></em>
<a class="jxr_linenumber" name="178" href="#178">178</a>
<a class="jxr_linenumber" name="179" href="#179">179</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> The 64 valid <a href="../../../../org/trafodion/dcs/util/Base64.html">Base64</a> values. */</em>
<a class="jxr_linenumber" name="180" href="#180">180</a>
<a class="jxr_linenumber" name="181" href="#181">181</a> <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="182" href="#182">182</a> <em class="jxr_comment"> * Host platform may be something funny like EBCDIC, so we hardcode these</em>
<a class="jxr_linenumber" name="183" href="#183">183</a> <em class="jxr_comment"> * values.</em>
<a class="jxr_linenumber" name="184" href="#184">184</a> <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="185" href="#185">185</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] _STANDARD_ALPHABET = { (byte) 'A', (byte) 'B',
<a class="jxr_linenumber" name="186" href="#186">186</a> (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', (byte) 'H',
<a class="jxr_linenumber" name="187" href="#187">187</a> (byte) 'I', (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N',
<a class="jxr_linenumber" name="188" href="#188">188</a> (byte) 'O', (byte) 'P', (byte) 'Q', (byte) 'R', (byte) 'S', (byte) 'T',
<a class="jxr_linenumber" name="189" href="#189">189</a> (byte) 'U', (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z',
<a class="jxr_linenumber" name="190" href="#190">190</a> (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f',
<a class="jxr_linenumber" name="191" href="#191">191</a> (byte) 'g', (byte) 'h', (byte) 'i', (byte) 'j', (byte) 'k', (byte) 'l',
<a class="jxr_linenumber" name="192" href="#192">192</a> (byte) 'm', (byte) 'n', (byte) 'o', (byte) 'p', (byte) 'q', (byte) 'r',
<a class="jxr_linenumber" name="193" href="#193">193</a> (byte) 's', (byte) 't', (byte) 'u', (byte) 'v', (byte) 'w', (byte) 'x',
<a class="jxr_linenumber" name="194" href="#194">194</a> (byte) 'y', (byte) 'z', (byte) '0', (byte) '1', (byte) '2', (byte) '3',
<a class="jxr_linenumber" name="195" href="#195">195</a> (byte) '4', (byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9',
<a class="jxr_linenumber" name="196" href="#196">196</a> (byte) '+', (byte) '/'
<a class="jxr_linenumber" name="197" href="#197">197</a> };
<a class="jxr_linenumber" name="198" href="#198">198</a>
<a class="jxr_linenumber" name="199" href="#199">199</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="200" href="#200">200</a> <em class="jxr_javadoccomment"> * Translates a Base64 value to either its 6-bit reconstruction value or a</em>
<a class="jxr_linenumber" name="201" href="#201">201</a> <em class="jxr_javadoccomment"> * negative number indicating some other meaning.</em>
<a class="jxr_linenumber" name="202" href="#202">202</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="203" href="#203">203</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] _STANDARD_DECODABET = {
<a class="jxr_linenumber" name="204" href="#204">204</a> -9, -9, -9, -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 0 - 8</em>
<a class="jxr_linenumber" name="205" href="#205">205</a> -5, -5, <em class="jxr_comment">// Whitespace: Tab, Newline</em>
<a class="jxr_linenumber" name="206" href="#206">206</a> -9, -9, <em class="jxr_comment">// Decimal 11 - 12</em>
<a class="jxr_linenumber" name="207" href="#207">207</a> -5, <em class="jxr_comment">// Whitespace: Return</em>
<a class="jxr_linenumber" name="208" href="#208">208</a> -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 14 - 26</em>
<a class="jxr_linenumber" name="209" href="#209">209</a> -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 27 - 31</em>
<a class="jxr_linenumber" name="210" href="#210">210</a> -5, <em class="jxr_comment">// Whitespace: Space</em>
<a class="jxr_linenumber" name="211" href="#211">211</a> -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 33 - 42</em>
<a class="jxr_linenumber" name="212" href="#212">212</a> 62, <em class="jxr_comment">// Plus sign at decimal 43</em>
<a class="jxr_linenumber" name="213" href="#213">213</a> -9, -9, -9, <em class="jxr_comment">// Decimal 44 - 46</em>
<a class="jxr_linenumber" name="214" href="#214">214</a> 63, <em class="jxr_comment">// Slash at decimal 47</em>
<a class="jxr_linenumber" name="215" href="#215">215</a> 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, <em class="jxr_comment">// Numbers zero - nine</em>
<a class="jxr_linenumber" name="216" href="#216">216</a> -9, -9, -9, <em class="jxr_comment">// Decimal 58 - 60</em>
<a class="jxr_linenumber" name="217" href="#217">217</a> -1, <em class="jxr_comment">// Equals sign at decimal 61</em>
<a class="jxr_linenumber" name="218" href="#218">218</a> -9, -9, -9, <em class="jxr_comment">// Decimal 62 - 64</em>
<a class="jxr_linenumber" name="219" href="#219">219</a> 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, <em class="jxr_comment">// Letters 'A' - 'N'</em>
<a class="jxr_linenumber" name="220" href="#220">220</a> 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, <em class="jxr_comment">// Letters 'O' - 'Z'</em>
<a class="jxr_linenumber" name="221" href="#221">221</a> -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 91 - 96</em>
<a class="jxr_linenumber" name="222" href="#222">222</a> 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, <em class="jxr_comment">// Letters 'a' - 'm'</em>
<a class="jxr_linenumber" name="223" href="#223">223</a> 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, <em class="jxr_comment">// Letters 'n' -'z'</em>
<a class="jxr_linenumber" name="224" href="#224">224</a> -9, -9, -9, -9 <em class="jxr_comment">// Decimal 123 - 126</em>
<a class="jxr_linenumber" name="225" href="#225">225</a> };
<a class="jxr_linenumber" name="226" href="#226">226</a>
<a class="jxr_linenumber" name="227" href="#227">227</a> <em class="jxr_comment">/*<em class="jxr_comment"> ******** U R L S A F E B A S E 6 4 A L P H A B E T ******** */</em></em>
<a class="jxr_linenumber" name="228" href="#228">228</a>
<a class="jxr_linenumber" name="229" href="#229">229</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="230" href="#230">230</a> <em class="jxr_javadoccomment"> * Used in the URL and Filename safe dialect described in Section 4 of RFC3548</em>
<a class="jxr_linenumber" name="231" href="#231">231</a> <em class="jxr_javadoccomment"> * &lt;a href="<a href="http://www.faqs.org/rfcs/rfc3548.html" target="alexandria_uri">http://www.faqs.org/rfcs/rfc3548.html</a>"&gt;</em>
<a class="jxr_linenumber" name="232" href="#232">232</a> <em class="jxr_javadoccomment"> * <a href="http://www.faqs.org/rfcs/rfc3548.html&lt;/a&gt;." target="alexandria_uri">http://www.faqs.org/rfcs/rfc3548.html&lt;/a&gt;.</a></em>
<a class="jxr_linenumber" name="233" href="#233">233</a> <em class="jxr_javadoccomment"> * Notice that the last two bytes become "hyphen" and "underscore" instead of</em>
<a class="jxr_linenumber" name="234" href="#234">234</a> <em class="jxr_javadoccomment"> * "plus" and "slash."</em>
<a class="jxr_linenumber" name="235" href="#235">235</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="236" href="#236">236</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] _URL_SAFE_ALPHABET = { (byte) 'A', (byte) 'B',
<a class="jxr_linenumber" name="237" href="#237">237</a> (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', (byte) 'H',
<a class="jxr_linenumber" name="238" href="#238">238</a> (byte) 'I', (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N',
<a class="jxr_linenumber" name="239" href="#239">239</a> (byte) 'O', (byte) 'P', (byte) 'Q', (byte) 'R', (byte) 'S', (byte) 'T',
<a class="jxr_linenumber" name="240" href="#240">240</a> (byte) 'U', (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z',
<a class="jxr_linenumber" name="241" href="#241">241</a> (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f',
<a class="jxr_linenumber" name="242" href="#242">242</a> (byte) 'g', (byte) 'h', (byte) 'i', (byte) 'j', (byte) 'k', (byte) 'l',
<a class="jxr_linenumber" name="243" href="#243">243</a> (byte) 'm', (byte) 'n', (byte) 'o', (byte) 'p', (byte) 'q', (byte) 'r',
<a class="jxr_linenumber" name="244" href="#244">244</a> (byte) 's', (byte) 't', (byte) 'u', (byte) 'v', (byte) 'w', (byte) 'x',
<a class="jxr_linenumber" name="245" href="#245">245</a> (byte) 'y', (byte) 'z', (byte) '0', (byte) '1', (byte) '2', (byte) '3',
<a class="jxr_linenumber" name="246" href="#246">246</a> (byte) '4', (byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9',
<a class="jxr_linenumber" name="247" href="#247">247</a> (byte) '-', (byte) '_'
<a class="jxr_linenumber" name="248" href="#248">248</a> };
<a class="jxr_linenumber" name="249" href="#249">249</a>
<a class="jxr_linenumber" name="250" href="#250">250</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="251" href="#251">251</a> <em class="jxr_javadoccomment"> * Used in decoding URL and Filename safe dialects of Base64.</em>
<a class="jxr_linenumber" name="252" href="#252">252</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="253" href="#253">253</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] _URL_SAFE_DECODABET = {
<a class="jxr_linenumber" name="254" href="#254">254</a> -9, -9, -9, -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 0 - 8</em>
<a class="jxr_linenumber" name="255" href="#255">255</a> -5, -5, <em class="jxr_comment">// Whitespace: Tab, Newline</em>
<a class="jxr_linenumber" name="256" href="#256">256</a> -9, -9, <em class="jxr_comment">// Decimal 11 - 12</em>
<a class="jxr_linenumber" name="257" href="#257">257</a> -5, <em class="jxr_comment">// Whitespace: Return</em>
<a class="jxr_linenumber" name="258" href="#258">258</a> -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 14 - 26</em>
<a class="jxr_linenumber" name="259" href="#259">259</a> -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 27 - 31</em>
<a class="jxr_linenumber" name="260" href="#260">260</a> -5, <em class="jxr_comment">// Whitespace: Space</em>
<a class="jxr_linenumber" name="261" href="#261">261</a> -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 33 - 42</em>
<a class="jxr_linenumber" name="262" href="#262">262</a> -9, <em class="jxr_comment">// Plus sign at 43</em>
<a class="jxr_linenumber" name="263" href="#263">263</a> -9, <em class="jxr_comment">// Decimal 44</em>
<a class="jxr_linenumber" name="264" href="#264">264</a> 62, <em class="jxr_comment">// Minus sign at 45</em>
<a class="jxr_linenumber" name="265" href="#265">265</a> -9, <em class="jxr_comment">// Decimal 46</em>
<a class="jxr_linenumber" name="266" href="#266">266</a> -9, <em class="jxr_comment">// Slash at 47</em>
<a class="jxr_linenumber" name="267" href="#267">267</a> 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, <em class="jxr_comment">// Numbers 0 - 9</em>
<a class="jxr_linenumber" name="268" href="#268">268</a> -9, -9, -9, <em class="jxr_comment">// Decimal 58 - 60</em>
<a class="jxr_linenumber" name="269" href="#269">269</a> -1, <em class="jxr_comment">// Equals sign at 61</em>
<a class="jxr_linenumber" name="270" href="#270">270</a> -9, -9, -9, <em class="jxr_comment">// Decimal 62 - 64</em>
<a class="jxr_linenumber" name="271" href="#271">271</a> 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, <em class="jxr_comment">// Letters 'A' - 'N'</em>
<a class="jxr_linenumber" name="272" href="#272">272</a> 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, <em class="jxr_comment">// Letters 'O' - 'Z'</em>
<a class="jxr_linenumber" name="273" href="#273">273</a> -9, -9, -9, -9, <em class="jxr_comment">// Decimal 91 - 94</em>
<a class="jxr_linenumber" name="274" href="#274">274</a> 63, <em class="jxr_comment">// Underscore at 95</em>
<a class="jxr_linenumber" name="275" href="#275">275</a> -9, <em class="jxr_comment">// Decimal 96</em>
<a class="jxr_linenumber" name="276" href="#276">276</a> 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, <em class="jxr_comment">// Letters 'a' - 'm'</em>
<a class="jxr_linenumber" name="277" href="#277">277</a> 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, <em class="jxr_comment">// Letters 'n' - 'z'</em>
<a class="jxr_linenumber" name="278" href="#278">278</a> -9, -9, -9, -9 <em class="jxr_comment">// Decimal 123 - 126</em>
<a class="jxr_linenumber" name="279" href="#279">279</a> };
<a class="jxr_linenumber" name="280" href="#280">280</a>
<a class="jxr_linenumber" name="281" href="#281">281</a> <em class="jxr_comment">/*<em class="jxr_comment"> ******** O R D E R E D B A S E 6 4 A L P H A B E T ******** */</em></em>
<a class="jxr_linenumber" name="282" href="#282">282</a>
<a class="jxr_linenumber" name="283" href="#283">283</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="284" href="#284">284</a> <em class="jxr_javadoccomment"> * In addition to being URL and file name friendly, this encoding preserves</em>
<a class="jxr_linenumber" name="285" href="#285">285</a> <em class="jxr_javadoccomment"> * the sort order of encoded values. Whatever is input, be it string or</em>
<a class="jxr_linenumber" name="286" href="#286">286</a> <em class="jxr_javadoccomment"> * just an array of bytes, when you use this encoding, the encoded value sorts</em>
<a class="jxr_linenumber" name="287" href="#287">287</a> <em class="jxr_javadoccomment"> * exactly the same as the input value. It is described in the RFC change</em>
<a class="jxr_linenumber" name="288" href="#288">288</a> <em class="jxr_javadoccomment"> * request: &lt;a href="<a href="http://www.faqs.org/qa/rfcc-1940.html" target="alexandria_uri">http://www.faqs.org/qa/rfcc-1940.html</a>"&gt;</em>
<a class="jxr_linenumber" name="289" href="#289">289</a> <em class="jxr_javadoccomment"> * <a href="http://www.faqs.org/qa/rfcc-1940.html&lt;/a&gt;." target="alexandria_uri">http://www.faqs.org/qa/rfcc-1940.html&lt;/a&gt;.</a></em>
<a class="jxr_linenumber" name="290" href="#290">290</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="291" href="#291">291</a> <em class="jxr_javadoccomment"> * It replaces "plus" and "slash" with "hyphen" and "underscore" and</em>
<a class="jxr_linenumber" name="292" href="#292">292</a> <em class="jxr_javadoccomment"> * rearranges the alphabet so that the characters are in their natural sort</em>
<a class="jxr_linenumber" name="293" href="#293">293</a> <em class="jxr_javadoccomment"> * order.</em>
<a class="jxr_linenumber" name="294" href="#294">294</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="295" href="#295">295</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] _ORDERED_ALPHABET = { (byte) '-', (byte) '0',
<a class="jxr_linenumber" name="296" href="#296">296</a> (byte) '1', (byte) '2', (byte) '3', (byte) '4', (byte) '5', (byte) '6',
<a class="jxr_linenumber" name="297" href="#297">297</a> (byte) '7', (byte) '8', (byte) '9', (byte) 'A', (byte) 'B', (byte) 'C',
<a class="jxr_linenumber" name="298" href="#298">298</a> (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', (byte) 'H', (byte) 'I',
<a class="jxr_linenumber" name="299" href="#299">299</a> (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', (byte) 'O',
<a class="jxr_linenumber" name="300" href="#300">300</a> (byte) 'P', (byte) 'Q', (byte) 'R', (byte) 'S', (byte) 'T', (byte) 'U',
<a class="jxr_linenumber" name="301" href="#301">301</a> (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z', (byte) '_',
<a class="jxr_linenumber" name="302" href="#302">302</a> (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f',
<a class="jxr_linenumber" name="303" href="#303">303</a> (byte) 'g', (byte) 'h', (byte) 'i', (byte) 'j', (byte) 'k', (byte) 'l',
<a class="jxr_linenumber" name="304" href="#304">304</a> (byte) 'm', (byte) 'n', (byte) 'o', (byte) 'p', (byte) 'q', (byte) 'r',
<a class="jxr_linenumber" name="305" href="#305">305</a> (byte) 's', (byte) 't', (byte) 'u', (byte) 'v', (byte) 'w', (byte) 'x',
<a class="jxr_linenumber" name="306" href="#306">306</a> (byte) 'y', (byte) 'z'
<a class="jxr_linenumber" name="307" href="#307">307</a> };
<a class="jxr_linenumber" name="308" href="#308">308</a>
<a class="jxr_linenumber" name="309" href="#309">309</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="310" href="#310">310</a> <em class="jxr_javadoccomment"> * Used in decoding the "ordered" dialect of Base64.</em>
<a class="jxr_linenumber" name="311" href="#311">311</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="312" href="#312">312</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] _ORDERED_DECODABET = {
<a class="jxr_linenumber" name="313" href="#313">313</a> -9, -9, -9, -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 0 - 8</em>
<a class="jxr_linenumber" name="314" href="#314">314</a> -5, -5, <em class="jxr_comment">// Whitespace: Tab, Newline</em>
<a class="jxr_linenumber" name="315" href="#315">315</a> -9, -9, <em class="jxr_comment">// Decimal 11 - 12</em>
<a class="jxr_linenumber" name="316" href="#316">316</a> -5, <em class="jxr_comment">// Whitespace: Return</em>
<a class="jxr_linenumber" name="317" href="#317">317</a> -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 14 - 26</em>
<a class="jxr_linenumber" name="318" href="#318">318</a> -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 27 - 31</em>
<a class="jxr_linenumber" name="319" href="#319">319</a> -5, <em class="jxr_comment">// Whitespace: Space</em>
<a class="jxr_linenumber" name="320" href="#320">320</a> -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, <em class="jxr_comment">// Decimal 33 - 42</em>
<a class="jxr_linenumber" name="321" href="#321">321</a> -9, <em class="jxr_comment">// Plus sign at 43</em>
<a class="jxr_linenumber" name="322" href="#322">322</a> -9, <em class="jxr_comment">// Decimal 44</em>
<a class="jxr_linenumber" name="323" href="#323">323</a> 0, <em class="jxr_comment">// Minus sign at 45</em>
<a class="jxr_linenumber" name="324" href="#324">324</a> -9, <em class="jxr_comment">// Decimal 46</em>
<a class="jxr_linenumber" name="325" href="#325">325</a> -9, <em class="jxr_comment">// Slash at decimal 47</em>
<a class="jxr_linenumber" name="326" href="#326">326</a> 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, <em class="jxr_comment">// Numbers 0 - 9</em>
<a class="jxr_linenumber" name="327" href="#327">327</a> -9, -9, -9, <em class="jxr_comment">// Decimal 58 - 60</em>
<a class="jxr_linenumber" name="328" href="#328">328</a> -1, <em class="jxr_comment">// Equals sign at 61</em>
<a class="jxr_linenumber" name="329" href="#329">329</a> -9, -9, -9, <em class="jxr_comment">// Decimal 62 - 64</em>
<a class="jxr_linenumber" name="330" href="#330">330</a> 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, <em class="jxr_comment">// Letters 'A' - 'M'</em>
<a class="jxr_linenumber" name="331" href="#331">331</a> 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, <em class="jxr_comment">// Letters 'N' - 'Z'</em>
<a class="jxr_linenumber" name="332" href="#332">332</a> -9, -9, -9, -9, <em class="jxr_comment">// Decimal 91 - 94</em>
<a class="jxr_linenumber" name="333" href="#333">333</a> 37, <em class="jxr_comment">// Underscore at 95</em>
<a class="jxr_linenumber" name="334" href="#334">334</a> -9, <em class="jxr_comment">// Decimal 96</em>
<a class="jxr_linenumber" name="335" href="#335">335</a> 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, <em class="jxr_comment">// Letters 'a' - 'm'</em>
<a class="jxr_linenumber" name="336" href="#336">336</a> 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, <em class="jxr_comment">// Letters 'n' - 'z'</em>
<a class="jxr_linenumber" name="337" href="#337">337</a> -9, -9, -9, -9 <em class="jxr_comment">// Decimal 123 - 126</em>
<a class="jxr_linenumber" name="338" href="#338">338</a> };
<a class="jxr_linenumber" name="339" href="#339">339</a>
<a class="jxr_linenumber" name="340" href="#340">340</a> <em class="jxr_comment">/*<em class="jxr_comment"> ******** D E T E R M I N E W H I C H A L H A B E T ******** */</em></em>
<a class="jxr_linenumber" name="341" href="#341">341</a>
<a class="jxr_linenumber" name="342" href="#342">342</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="343" href="#343">343</a> <em class="jxr_javadoccomment"> * Returns one of the _SOMETHING_ALPHABET byte arrays depending on the options</em>
<a class="jxr_linenumber" name="344" href="#344">344</a> <em class="jxr_javadoccomment"> * specified. It's possible, though silly, to specify ORDERED and URLSAFE in</em>
<a class="jxr_linenumber" name="345" href="#345">345</a> <em class="jxr_javadoccomment"> * which case one of them will be picked, though there is no guarantee as to</em>
<a class="jxr_linenumber" name="346" href="#346">346</a> <em class="jxr_javadoccomment"> * which one will be picked.</em>
<a class="jxr_linenumber" name="347" href="#347">347</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="348" href="#348">348</a> <em class="jxr_javadoccomment"> * @param options URL_SAFE or ORDERED</em>
<a class="jxr_linenumber" name="349" href="#349">349</a> <em class="jxr_javadoccomment"> * @return alphabet array to use</em>
<a class="jxr_linenumber" name="350" href="#350">350</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="351" href="#351">351</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> byte[] getAlphabet(<strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="352" href="#352">352</a> <strong class="jxr_keyword">if</strong> ((options &amp; URL_SAFE) == URL_SAFE) {
<a class="jxr_linenumber" name="353" href="#353">353</a> <strong class="jxr_keyword">return</strong> _URL_SAFE_ALPHABET;
<a class="jxr_linenumber" name="354" href="#354">354</a>
<a class="jxr_linenumber" name="355" href="#355">355</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> ((options &amp; ORDERED) == ORDERED) {
<a class="jxr_linenumber" name="356" href="#356">356</a> <strong class="jxr_keyword">return</strong> _ORDERED_ALPHABET;
<a class="jxr_linenumber" name="357" href="#357">357</a>
<a class="jxr_linenumber" name="358" href="#358">358</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="359" href="#359">359</a> <strong class="jxr_keyword">return</strong> _STANDARD_ALPHABET;
<a class="jxr_linenumber" name="360" href="#360">360</a> }
<a class="jxr_linenumber" name="361" href="#361">361</a> } <em class="jxr_comment">// end getAlphabet</em>
<a class="jxr_linenumber" name="362" href="#362">362</a>
<a class="jxr_linenumber" name="363" href="#363">363</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="364" href="#364">364</a> <em class="jxr_javadoccomment"> * Returns one of the _SOMETHING_DECODABET byte arrays depending on the</em>
<a class="jxr_linenumber" name="365" href="#365">365</a> <em class="jxr_javadoccomment"> * options specified. It's possible, though silly, to specify ORDERED and</em>
<a class="jxr_linenumber" name="366" href="#366">366</a> <em class="jxr_javadoccomment"> * URL_SAFE in which case one of them will be picked, though there is no</em>
<a class="jxr_linenumber" name="367" href="#367">367</a> <em class="jxr_javadoccomment"> * guarantee as to which one will be picked.</em>
<a class="jxr_linenumber" name="368" href="#368">368</a> <em class="jxr_javadoccomment"> * @param options URL_SAFE or ORDERED</em>
<a class="jxr_linenumber" name="369" href="#369">369</a> <em class="jxr_javadoccomment"> * @return alphabet array to use</em>
<a class="jxr_linenumber" name="370" href="#370">370</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="371" href="#371">371</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> byte[] getDecodabet(<strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="372" href="#372">372</a> <strong class="jxr_keyword">if</strong> ((options &amp; URL_SAFE) == URL_SAFE) {
<a class="jxr_linenumber" name="373" href="#373">373</a> <strong class="jxr_keyword">return</strong> _URL_SAFE_DECODABET;
<a class="jxr_linenumber" name="374" href="#374">374</a>
<a class="jxr_linenumber" name="375" href="#375">375</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> ((options &amp; ORDERED) == ORDERED) {
<a class="jxr_linenumber" name="376" href="#376">376</a> <strong class="jxr_keyword">return</strong> _ORDERED_DECODABET;
<a class="jxr_linenumber" name="377" href="#377">377</a>
<a class="jxr_linenumber" name="378" href="#378">378</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="379" href="#379">379</a> <strong class="jxr_keyword">return</strong> _STANDARD_DECODABET;
<a class="jxr_linenumber" name="380" href="#380">380</a> }
<a class="jxr_linenumber" name="381" href="#381">381</a> } <em class="jxr_comment">// end getDecodabet</em>
<a class="jxr_linenumber" name="382" href="#382">382</a>
<a class="jxr_linenumber" name="383" href="#383">383</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Defeats instantiation. */</em>
<a class="jxr_linenumber" name="384" href="#384">384</a> <strong class="jxr_keyword">private</strong> <a href="../../../../org/trafodion/dcs/util/Base64.html">Base64</a>() {}
<a class="jxr_linenumber" name="385" href="#385">385</a>
<a class="jxr_linenumber" name="386" href="#386">386</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="387" href="#387">387</a> <em class="jxr_javadoccomment"> * Main program. Used for testing.</em>
<a class="jxr_linenumber" name="388" href="#388">388</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="389" href="#389">389</a> <em class="jxr_javadoccomment"> * Encodes or decodes two files from the command line</em>
<a class="jxr_linenumber" name="390" href="#390">390</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="391" href="#391">391</a> <em class="jxr_javadoccomment"> * @param args command arguments</em>
<a class="jxr_linenumber" name="392" href="#392">392</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="393" href="#393">393</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> main(String[] args) {
<a class="jxr_linenumber" name="394" href="#394">394</a> <strong class="jxr_keyword">if</strong> (args.length &lt; 3) {
<a class="jxr_linenumber" name="395" href="#395">395</a> usage(<span class="jxr_string">"Not enough arguments."</span>);
<a class="jxr_linenumber" name="396" href="#396">396</a>
<a class="jxr_linenumber" name="397" href="#397">397</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="398" href="#398">398</a> String flag = args[0];
<a class="jxr_linenumber" name="399" href="#399">399</a> String infile = args[1];
<a class="jxr_linenumber" name="400" href="#400">400</a> String outfile = args[2];
<a class="jxr_linenumber" name="401" href="#401">401</a> <strong class="jxr_keyword">if</strong> (flag.equals(<span class="jxr_string">"-e"</span>)) { <em class="jxr_comment">// encode</em>
<a class="jxr_linenumber" name="402" href="#402">402</a> encodeFileToFile(infile, outfile);
<a class="jxr_linenumber" name="403" href="#403">403</a>
<a class="jxr_linenumber" name="404" href="#404">404</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (flag.equals(<span class="jxr_string">"-d"</span>)) { <em class="jxr_comment">// decode</em>
<a class="jxr_linenumber" name="405" href="#405">405</a> decodeFileToFile(infile, outfile);
<a class="jxr_linenumber" name="406" href="#406">406</a>
<a class="jxr_linenumber" name="407" href="#407">407</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="408" href="#408">408</a> usage(<span class="jxr_string">"Unknown flag: "</span> + flag);
<a class="jxr_linenumber" name="409" href="#409">409</a> }
<a class="jxr_linenumber" name="410" href="#410">410</a> }
<a class="jxr_linenumber" name="411" href="#411">411</a> } <em class="jxr_comment">// end main</em>
<a class="jxr_linenumber" name="412" href="#412">412</a>
<a class="jxr_linenumber" name="413" href="#413">413</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="414" href="#414">414</a> <em class="jxr_javadoccomment"> * Prints command line usage.</em>
<a class="jxr_linenumber" name="415" href="#415">415</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="416" href="#416">416</a> <em class="jxr_javadoccomment"> * @param msg A message to include with usage info.</em>
<a class="jxr_linenumber" name="417" href="#417">417</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="418" href="#418">418</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> usage(String msg) {
<a class="jxr_linenumber" name="419" href="#419">419</a> System.err.println(msg);
<a class="jxr_linenumber" name="420" href="#420">420</a> System.err.println(<span class="jxr_string">"Usage: java Base64 -e|-d inputfile outputfile"</span>);
<a class="jxr_linenumber" name="421" href="#421">421</a> } <em class="jxr_comment">// end usage</em>
<a class="jxr_linenumber" name="422" href="#422">422</a>
<a class="jxr_linenumber" name="423" href="#423">423</a> <em class="jxr_comment">/*<em class="jxr_comment"> ******** E N C O D I N G M E T H O D S ******** */</em></em>
<a class="jxr_linenumber" name="424" href="#424">424</a>
<a class="jxr_linenumber" name="425" href="#425">425</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="426" href="#426">426</a> <em class="jxr_javadoccomment"> * Encodes up to the first three bytes of array &lt;var&gt;threeBytes&lt;/var&gt; and</em>
<a class="jxr_linenumber" name="427" href="#427">427</a> <em class="jxr_javadoccomment"> * returns a four-byte array in Base64 notation. The actual number of</em>
<a class="jxr_linenumber" name="428" href="#428">428</a> <em class="jxr_javadoccomment"> * significant bytes in your array is given by &lt;var&gt;numSigBytes&lt;/var&gt;. The</em>
<a class="jxr_linenumber" name="429" href="#429">429</a> <em class="jxr_javadoccomment"> * array &lt;var&gt;threeBytes&lt;/var&gt; needs only be as big as &lt;var&gt;numSigBytes&lt;/var&gt;.</em>
<a class="jxr_linenumber" name="430" href="#430">430</a> <em class="jxr_javadoccomment"> * Code can reuse a byte array by passing a four-byte array as &lt;var&gt;b4&lt;/var&gt;.</em>
<a class="jxr_linenumber" name="431" href="#431">431</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="432" href="#432">432</a> <em class="jxr_javadoccomment"> * @param b4 A reusable byte array to reduce array instantiation</em>
<a class="jxr_linenumber" name="433" href="#433">433</a> <em class="jxr_javadoccomment"> * @param threeBytes the array to convert</em>
<a class="jxr_linenumber" name="434" href="#434">434</a> <em class="jxr_javadoccomment"> * @param numSigBytes the number of significant bytes in your array</em>
<a class="jxr_linenumber" name="435" href="#435">435</a> <em class="jxr_javadoccomment"> * @param options options for get alphabet</em>
<a class="jxr_linenumber" name="436" href="#436">436</a> <em class="jxr_javadoccomment"> * @return four byte array in Base64 notation.</em>
<a class="jxr_linenumber" name="437" href="#437">437</a> <em class="jxr_javadoccomment"> * @since 1.5.1</em>
<a class="jxr_linenumber" name="438" href="#438">438</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="439" href="#439">439</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> byte[] encode3to4(byte[] b4, byte[] threeBytes,
<a class="jxr_linenumber" name="440" href="#440">440</a> <strong class="jxr_keyword">int</strong> numSigBytes, <strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="441" href="#441">441</a> encode3to4(threeBytes, 0, numSigBytes, b4, 0, options);
<a class="jxr_linenumber" name="442" href="#442">442</a> <strong class="jxr_keyword">return</strong> b4;
<a class="jxr_linenumber" name="443" href="#443">443</a> } <em class="jxr_comment">// end encode3to4</em>
<a class="jxr_linenumber" name="444" href="#444">444</a>
<a class="jxr_linenumber" name="445" href="#445">445</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="446" href="#446">446</a> <em class="jxr_javadoccomment"> * Encodes up to three bytes of the array &lt;var&gt;source&lt;/var&gt; and writes the</em>
<a class="jxr_linenumber" name="447" href="#447">447</a> <em class="jxr_javadoccomment"> * resulting four Base64 bytes to &lt;var&gt;destination&lt;/var&gt;. The source and</em>
<a class="jxr_linenumber" name="448" href="#448">448</a> <em class="jxr_javadoccomment"> * destination arrays can be manipulated anywhere along their length by</em>
<a class="jxr_linenumber" name="449" href="#449">449</a> <em class="jxr_javadoccomment"> * specifying &lt;var&gt;srcOffset&lt;/var&gt; and &lt;var&gt;destOffset&lt;/var&gt;. This method</em>
<a class="jxr_linenumber" name="450" href="#450">450</a> <em class="jxr_javadoccomment"> * does not check to make sure your arrays are large enough to accomodate</em>
<a class="jxr_linenumber" name="451" href="#451">451</a> <em class="jxr_javadoccomment"> * &lt;var&gt;srcOffset&lt;/var&gt; + 3 for the &lt;var&gt;source&lt;/var&gt; array or</em>
<a class="jxr_linenumber" name="452" href="#452">452</a> <em class="jxr_javadoccomment"> * &lt;var&gt;destOffset&lt;/var&gt; + 4 for the &lt;var&gt;destination&lt;/var&gt; array. The</em>
<a class="jxr_linenumber" name="453" href="#453">453</a> <em class="jxr_javadoccomment"> * actual number of significant bytes in your array is given by</em>
<a class="jxr_linenumber" name="454" href="#454">454</a> <em class="jxr_javadoccomment"> * &lt;var&gt;numSigBytes&lt;/var&gt;.</em>
<a class="jxr_linenumber" name="455" href="#455">455</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="456" href="#456">456</a> <em class="jxr_javadoccomment"> * This is the lowest level of the encoding methods with all possible</em>
<a class="jxr_linenumber" name="457" href="#457">457</a> <em class="jxr_javadoccomment"> * parameters.</em>
<a class="jxr_linenumber" name="458" href="#458">458</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="459" href="#459">459</a> <em class="jxr_javadoccomment"> * @param source the array to convert</em>
<a class="jxr_linenumber" name="460" href="#460">460</a> <em class="jxr_javadoccomment"> * @param srcOffset the index where conversion begins</em>
<a class="jxr_linenumber" name="461" href="#461">461</a> <em class="jxr_javadoccomment"> * @param numSigBytes the number of significant bytes in your array</em>
<a class="jxr_linenumber" name="462" href="#462">462</a> <em class="jxr_javadoccomment"> * @param destination the array to hold the conversion</em>
<a class="jxr_linenumber" name="463" href="#463">463</a> <em class="jxr_javadoccomment"> * @param destOffset the index where output will be put</em>
<a class="jxr_linenumber" name="464" href="#464">464</a> <em class="jxr_javadoccomment"> * @param options options for get alphabet</em>
<a class="jxr_linenumber" name="465" href="#465">465</a> <em class="jxr_javadoccomment"> * @return the &lt;var&gt;destination&lt;/var&gt; array</em>
<a class="jxr_linenumber" name="466" href="#466">466</a> <em class="jxr_javadoccomment"> * @since 1.3</em>
<a class="jxr_linenumber" name="467" href="#467">467</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="468" href="#468">468</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> byte[] encode3to4(byte[] source, <strong class="jxr_keyword">int</strong> srcOffset,
<a class="jxr_linenumber" name="469" href="#469">469</a> <strong class="jxr_keyword">int</strong> numSigBytes, byte[] destination, <strong class="jxr_keyword">int</strong> destOffset, <strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="470" href="#470">470</a> byte[] ALPHABET = getAlphabet(options);
<a class="jxr_linenumber" name="471" href="#471">471</a>
<a class="jxr_linenumber" name="472" href="#472">472</a> <em class="jxr_comment">// 1 2 3</em>
<a class="jxr_linenumber" name="473" href="#473">473</a> <em class="jxr_comment">// 01234567890123456789012345678901 Bit position</em>
<a class="jxr_linenumber" name="474" href="#474">474</a> <em class="jxr_comment">// --------000000001111111122222222 Array position from threeBytes</em>
<a class="jxr_linenumber" name="475" href="#475">475</a> <em class="jxr_comment">// --------| || || || | Six bit groups to index ALPHABET</em>
<a class="jxr_linenumber" name="476" href="#476">476</a> <em class="jxr_comment">// &gt;&gt;18 &gt;&gt;12 &gt;&gt; 6 &gt;&gt; 0 Right shift necessary</em>
<a class="jxr_linenumber" name="477" href="#477">477</a> <em class="jxr_comment">// 0x3f 0x3f 0x3f Additional AND</em>
<a class="jxr_linenumber" name="478" href="#478">478</a>
<a class="jxr_linenumber" name="479" href="#479">479</a> <em class="jxr_comment">// Create buffer with zero-padding if there are only one or two</em>
<a class="jxr_linenumber" name="480" href="#480">480</a> <em class="jxr_comment">// significant bytes passed in the array.</em>
<a class="jxr_linenumber" name="481" href="#481">481</a> <em class="jxr_comment">// We have to shift left 24 in order to flush out the 1's that appear</em>
<a class="jxr_linenumber" name="482" href="#482">482</a> <em class="jxr_comment">// when Java treats a value as negative that is cast from a byte to an int.</em>
<a class="jxr_linenumber" name="483" href="#483">483</a> <strong class="jxr_keyword">int</strong> inBuff =
<a class="jxr_linenumber" name="484" href="#484">484</a> (numSigBytes &gt; 0 ? ((source[srcOffset] &lt;&lt; 24) &gt;&gt;&gt; 8) : 0)
<a class="jxr_linenumber" name="485" href="#485">485</a> | (numSigBytes &gt; 1 ? ((source[srcOffset + 1] &lt;&lt; 24) &gt;&gt;&gt; 16) : 0)
<a class="jxr_linenumber" name="486" href="#486">486</a> | (numSigBytes &gt; 2 ? ((source[srcOffset + 2] &lt;&lt; 24) &gt;&gt;&gt; 24) : 0);
<a class="jxr_linenumber" name="487" href="#487">487</a>
<a class="jxr_linenumber" name="488" href="#488">488</a> <strong class="jxr_keyword">switch</strong> (numSigBytes) {
<a class="jxr_linenumber" name="489" href="#489">489</a> <strong class="jxr_keyword">case</strong> 3:
<a class="jxr_linenumber" name="490" href="#490">490</a> destination[destOffset] = ALPHABET[(inBuff &gt;&gt;&gt; 18)];
<a class="jxr_linenumber" name="491" href="#491">491</a> destination[destOffset + 1] = ALPHABET[(inBuff &gt;&gt;&gt; 12) &amp; 0x3f];
<a class="jxr_linenumber" name="492" href="#492">492</a> destination[destOffset + 2] = ALPHABET[(inBuff &gt;&gt;&gt; 6) &amp; 0x3f];
<a class="jxr_linenumber" name="493" href="#493">493</a> destination[destOffset + 3] = ALPHABET[(inBuff) &amp; 0x3f];
<a class="jxr_linenumber" name="494" href="#494">494</a> <strong class="jxr_keyword">return</strong> destination;
<a class="jxr_linenumber" name="495" href="#495">495</a>
<a class="jxr_linenumber" name="496" href="#496">496</a> <strong class="jxr_keyword">case</strong> 2:
<a class="jxr_linenumber" name="497" href="#497">497</a> destination[destOffset] = ALPHABET[(inBuff &gt;&gt;&gt; 18)];
<a class="jxr_linenumber" name="498" href="#498">498</a> destination[destOffset + 1] = ALPHABET[(inBuff &gt;&gt;&gt; 12) &amp; 0x3f];
<a class="jxr_linenumber" name="499" href="#499">499</a> destination[destOffset + 2] = ALPHABET[(inBuff &gt;&gt;&gt; 6) &amp; 0x3f];
<a class="jxr_linenumber" name="500" href="#500">500</a> destination[destOffset + 3] = EQUALS_SIGN;
<a class="jxr_linenumber" name="501" href="#501">501</a> <strong class="jxr_keyword">return</strong> destination;
<a class="jxr_linenumber" name="502" href="#502">502</a>
<a class="jxr_linenumber" name="503" href="#503">503</a> <strong class="jxr_keyword">case</strong> 1:
<a class="jxr_linenumber" name="504" href="#504">504</a> destination[destOffset] = ALPHABET[(inBuff &gt;&gt;&gt; 18)];
<a class="jxr_linenumber" name="505" href="#505">505</a> destination[destOffset + 1] = ALPHABET[(inBuff &gt;&gt;&gt; 12) &amp; 0x3f];
<a class="jxr_linenumber" name="506" href="#506">506</a> destination[destOffset + 2] = EQUALS_SIGN;
<a class="jxr_linenumber" name="507" href="#507">507</a> destination[destOffset + 3] = EQUALS_SIGN;
<a class="jxr_linenumber" name="508" href="#508">508</a> <strong class="jxr_keyword">return</strong> destination;
<a class="jxr_linenumber" name="509" href="#509">509</a>
<a class="jxr_linenumber" name="510" href="#510">510</a> <strong class="jxr_keyword">default</strong>:
<a class="jxr_linenumber" name="511" href="#511">511</a> <strong class="jxr_keyword">return</strong> destination;
<a class="jxr_linenumber" name="512" href="#512">512</a> } <em class="jxr_comment">// end switch</em>
<a class="jxr_linenumber" name="513" href="#513">513</a> } <em class="jxr_comment">// end encode3to4</em>
<a class="jxr_linenumber" name="514" href="#514">514</a>
<a class="jxr_linenumber" name="515" href="#515">515</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="516" href="#516">516</a> <em class="jxr_javadoccomment"> * Serializes an object and returns the Base64-encoded version of that</em>
<a class="jxr_linenumber" name="517" href="#517">517</a> <em class="jxr_javadoccomment"> * serialized object. If the object cannot be serialized or there is another</em>
<a class="jxr_linenumber" name="518" href="#518">518</a> <em class="jxr_javadoccomment"> * error, the method will return &lt;tt&gt;null&lt;/tt&gt;. The object is not</em>
<a class="jxr_linenumber" name="519" href="#519">519</a> <em class="jxr_javadoccomment"> * GZip-compressed before being encoded.</em>
<a class="jxr_linenumber" name="520" href="#520">520</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="521" href="#521">521</a> <em class="jxr_javadoccomment"> * @param serializableObject The object to encode</em>
<a class="jxr_linenumber" name="522" href="#522">522</a> <em class="jxr_javadoccomment"> * @return The Base64-encoded object</em>
<a class="jxr_linenumber" name="523" href="#523">523</a> <em class="jxr_javadoccomment"> * @since 1.4</em>
<a class="jxr_linenumber" name="524" href="#524">524</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="525" href="#525">525</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String encodeObject(Serializable serializableObject) {
<a class="jxr_linenumber" name="526" href="#526">526</a> <strong class="jxr_keyword">return</strong> encodeObject(serializableObject, NO_OPTIONS);
<a class="jxr_linenumber" name="527" href="#527">527</a> } <em class="jxr_comment">// end encodeObject</em>
<a class="jxr_linenumber" name="528" href="#528">528</a>
<a class="jxr_linenumber" name="529" href="#529">529</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="530" href="#530">530</a> <em class="jxr_javadoccomment"> * Serializes an object and returns the Base64-encoded version of that</em>
<a class="jxr_linenumber" name="531" href="#531">531</a> <em class="jxr_javadoccomment"> * serialized object. If the object cannot be serialized or there is another</em>
<a class="jxr_linenumber" name="532" href="#532">532</a> <em class="jxr_javadoccomment"> * error, the method will return &lt;tt&gt;null&lt;/tt&gt;.</em>
<a class="jxr_linenumber" name="533" href="#533">533</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="534" href="#534">534</a> <em class="jxr_javadoccomment"> * Valid options:</em>
<a class="jxr_linenumber" name="535" href="#535">535</a> <em class="jxr_javadoccomment"> * &lt;ul&gt;</em>
<a class="jxr_linenumber" name="536" href="#536">536</a> <em class="jxr_javadoccomment"> * &lt;li&gt;GZIP: gzip-compresses object before encoding it.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="537" href="#537">537</a> <em class="jxr_javadoccomment"> * &lt;li&gt;DONT_BREAK_LINES: don't break lines at 76 characters. &lt;i&gt;Note:</em>
<a class="jxr_linenumber" name="538" href="#538">538</a> <em class="jxr_javadoccomment"> * Technically, this makes your encoding non-compliant.&lt;/i&gt;&lt;/li&gt;</em>
<a class="jxr_linenumber" name="539" href="#539">539</a> <em class="jxr_javadoccomment"> * &lt;/ul&gt;</em>
<a class="jxr_linenumber" name="540" href="#540">540</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="541" href="#541">541</a> <em class="jxr_javadoccomment"> * Example: &lt;code&gt;encodeObject( myObj, Base64.GZIP )&lt;/code&gt; or</em>
<a class="jxr_linenumber" name="542" href="#542">542</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="543" href="#543">543</a> <em class="jxr_javadoccomment"> * Example:</em>
<a class="jxr_linenumber" name="544" href="#544">544</a> <em class="jxr_javadoccomment"> * &lt;code&gt;encodeObject( myObj, Base64.GZIP | Base64.DONT_BREAK_LINES )&lt;/code&gt;</em>
<a class="jxr_linenumber" name="545" href="#545">545</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="546" href="#546">546</a> <em class="jxr_javadoccomment"> * @param serializableObject The object to encode</em>
<a class="jxr_linenumber" name="547" href="#547">547</a> <em class="jxr_javadoccomment"> * @param options Specified options</em>
<a class="jxr_linenumber" name="548" href="#548">548</a> <em class="jxr_javadoccomment"> * @see Base64#GZIP</em>
<a class="jxr_linenumber" name="549" href="#549">549</a> <em class="jxr_javadoccomment"> * @see Base64#DONT_BREAK_LINES</em>
<a class="jxr_linenumber" name="550" href="#550">550</a> <em class="jxr_javadoccomment"> * @return The Base64-encoded object</em>
<a class="jxr_linenumber" name="551" href="#551">551</a> <em class="jxr_javadoccomment"> * @since 2.0</em>
<a class="jxr_linenumber" name="552" href="#552">552</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="553" href="#553">553</a> @SuppressWarnings({<span class="jxr_string">"ConstantConditions"</span>})
<a class="jxr_linenumber" name="554" href="#554">554</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String encodeObject(Serializable serializableObject,
<a class="jxr_linenumber" name="555" href="#555">555</a> <strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="556" href="#556">556</a>
<a class="jxr_linenumber" name="557" href="#557">557</a> ByteArrayOutputStream baos = <strong class="jxr_keyword">new</strong> ByteArrayOutputStream();
<a class="jxr_linenumber" name="558" href="#558">558</a> OutputStream b64os = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="559" href="#559">559</a> ObjectOutputStream oos = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="560" href="#560">560</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="561" href="#561">561</a> <em class="jxr_comment">// ObjectOutputStream -&gt; (GZIP) -&gt; Base64 -&gt; ByteArrayOutputStream</em>
<a class="jxr_linenumber" name="562" href="#562">562</a> b64os = <strong class="jxr_keyword">new</strong> <a href="../../../../org/trafodion/dcs/util/Base64.html">Base64OutputStream</a>(baos, ENCODE | options);
<a class="jxr_linenumber" name="563" href="#563">563</a>
<a class="jxr_linenumber" name="564" href="#564">564</a> oos = ((options &amp; GZIP) == GZIP) ?
<a class="jxr_linenumber" name="565" href="#565">565</a> <strong class="jxr_keyword">new</strong> ObjectOutputStream(<strong class="jxr_keyword">new</strong> GZIPOutputStream(b64os)) :
<a class="jxr_linenumber" name="566" href="#566">566</a> <strong class="jxr_keyword">new</strong> ObjectOutputStream(b64os);
<a class="jxr_linenumber" name="567" href="#567">567</a>
<a class="jxr_linenumber" name="568" href="#568">568</a> oos.writeObject(serializableObject);
<a class="jxr_linenumber" name="569" href="#569">569</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(baos.toByteArray(), PREFERRED_ENCODING);
<a class="jxr_linenumber" name="570" href="#570">570</a>
<a class="jxr_linenumber" name="571" href="#571">571</a> } <strong class="jxr_keyword">catch</strong> (UnsupportedEncodingException uue) {
<a class="jxr_linenumber" name="572" href="#572">572</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(baos.toByteArray());
<a class="jxr_linenumber" name="573" href="#573">573</a>
<a class="jxr_linenumber" name="574" href="#574">574</a> } <strong class="jxr_keyword">catch</strong> (IOException e) {
<a class="jxr_linenumber" name="575" href="#575">575</a> LOG.error(<span class="jxr_string">"error encoding object"</span>, e);
<a class="jxr_linenumber" name="576" href="#576">576</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="577" href="#577">577</a>
<a class="jxr_linenumber" name="578" href="#578">578</a> } <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="579" href="#579">579</a> <strong class="jxr_keyword">if</strong> (oos != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="580" href="#580">580</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="581" href="#581">581</a> oos.close();
<a class="jxr_linenumber" name="582" href="#582">582</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a class="jxr_linenumber" name="583" href="#583">583</a> LOG.error(<span class="jxr_string">"error closing ObjectOutputStream"</span>, e);
<a class="jxr_linenumber" name="584" href="#584">584</a> }
<a class="jxr_linenumber" name="585" href="#585">585</a> }
<a class="jxr_linenumber" name="586" href="#586">586</a> <strong class="jxr_keyword">if</strong> (b64os != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="587" href="#587">587</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="588" href="#588">588</a> b64os.close();
<a class="jxr_linenumber" name="589" href="#589">589</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a class="jxr_linenumber" name="590" href="#590">590</a> LOG.error(<span class="jxr_string">"error closing Base64OutputStream"</span>, e);
<a class="jxr_linenumber" name="591" href="#591">591</a> }
<a class="jxr_linenumber" name="592" href="#592">592</a> }
<a class="jxr_linenumber" name="593" href="#593">593</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="594" href="#594">594</a> baos.close();
<a class="jxr_linenumber" name="595" href="#595">595</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a class="jxr_linenumber" name="596" href="#596">596</a> LOG.error(<span class="jxr_string">"error closing ByteArrayOutputStream"</span>, e);
<a class="jxr_linenumber" name="597" href="#597">597</a> }
<a class="jxr_linenumber" name="598" href="#598">598</a> } <em class="jxr_comment">// end finally</em>
<a class="jxr_linenumber" name="599" href="#599">599</a> } <em class="jxr_comment">// end encode</em>
<a class="jxr_linenumber" name="600" href="#600">600</a>
<a class="jxr_linenumber" name="601" href="#601">601</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="602" href="#602">602</a> <em class="jxr_javadoccomment"> * Encodes a byte array into Base64 notation. Does not GZip-compress data.</em>
<a class="jxr_linenumber" name="603" href="#603">603</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="604" href="#604">604</a> <em class="jxr_javadoccomment"> * @param source The data to convert</em>
<a class="jxr_linenumber" name="605" href="#605">605</a> <em class="jxr_javadoccomment"> * @return encoded byte array</em>
<a class="jxr_linenumber" name="606" href="#606">606</a> <em class="jxr_javadoccomment"> * @since 1.4</em>
<a class="jxr_linenumber" name="607" href="#607">607</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="608" href="#608">608</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String encodeBytes(byte[] source) {
<a class="jxr_linenumber" name="609" href="#609">609</a> <strong class="jxr_keyword">return</strong> encodeBytes(source, 0, source.length, NO_OPTIONS);
<a class="jxr_linenumber" name="610" href="#610">610</a> } <em class="jxr_comment">// end encodeBytes</em>
<a class="jxr_linenumber" name="611" href="#611">611</a>
<a class="jxr_linenumber" name="612" href="#612">612</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="613" href="#613">613</a> <em class="jxr_javadoccomment"> * Encodes a byte array into Base64 notation.</em>
<a class="jxr_linenumber" name="614" href="#614">614</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="615" href="#615">615</a> <em class="jxr_javadoccomment"> * Valid options:</em>
<a class="jxr_linenumber" name="616" href="#616">616</a> <em class="jxr_javadoccomment"> * &lt;ul&gt;</em>
<a class="jxr_linenumber" name="617" href="#617">617</a> <em class="jxr_javadoccomment"> * &lt;li&gt;GZIP: gzip-compresses object before encoding it.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="618" href="#618">618</a> <em class="jxr_javadoccomment"> * &lt;li&gt;DONT_BREAK_LINES: don't break lines at 76 characters. &lt;i&gt;Note:</em>
<a class="jxr_linenumber" name="619" href="#619">619</a> <em class="jxr_javadoccomment"> * Technically, this makes your encoding non-compliant.&lt;/i&gt;&lt;/li&gt;</em>
<a class="jxr_linenumber" name="620" href="#620">620</a> <em class="jxr_javadoccomment"> * &lt;/ul&gt;</em>
<a class="jxr_linenumber" name="621" href="#621">621</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="622" href="#622">622</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="623" href="#623">623</a> <em class="jxr_javadoccomment"> * Example: &lt;code&gt;encodeBytes( myData, Base64.GZIP )&lt;/code&gt; or</em>
<a class="jxr_linenumber" name="624" href="#624">624</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="625" href="#625">625</a> <em class="jxr_javadoccomment"> * Example:</em>
<a class="jxr_linenumber" name="626" href="#626">626</a> <em class="jxr_javadoccomment"> * &lt;code&gt;encodeBytes( myData, Base64.GZIP | Base64.DONT_BREAK_LINES )&lt;/code&gt;</em>
<a class="jxr_linenumber" name="627" href="#627">627</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="628" href="#628">628</a> <em class="jxr_javadoccomment"> * @param source The data to convert</em>
<a class="jxr_linenumber" name="629" href="#629">629</a> <em class="jxr_javadoccomment"> * @param options Specified options</em>
<a class="jxr_linenumber" name="630" href="#630">630</a> <em class="jxr_javadoccomment"> * @see Base64#GZIP</em>
<a class="jxr_linenumber" name="631" href="#631">631</a> <em class="jxr_javadoccomment"> * @see Base64#DONT_BREAK_LINES</em>
<a class="jxr_linenumber" name="632" href="#632">632</a> <em class="jxr_javadoccomment"> * @see Base64#URL_SAFE</em>
<a class="jxr_linenumber" name="633" href="#633">633</a> <em class="jxr_javadoccomment"> * @see Base64#ORDERED</em>
<a class="jxr_linenumber" name="634" href="#634">634</a> <em class="jxr_javadoccomment"> * @return encoded byte array</em>
<a class="jxr_linenumber" name="635" href="#635">635</a> <em class="jxr_javadoccomment"> * @since 2.0</em>
<a class="jxr_linenumber" name="636" href="#636">636</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="637" href="#637">637</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String encodeBytes(byte[] source, <strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="638" href="#638">638</a> <strong class="jxr_keyword">return</strong> encodeBytes(source, 0, source.length, options);
<a class="jxr_linenumber" name="639" href="#639">639</a> } <em class="jxr_comment">// end encodeBytes</em>
<a class="jxr_linenumber" name="640" href="#640">640</a>
<a class="jxr_linenumber" name="641" href="#641">641</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="642" href="#642">642</a> <em class="jxr_javadoccomment"> * Encodes a byte array into Base64 notation. Does not GZip-compress data.</em>
<a class="jxr_linenumber" name="643" href="#643">643</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="644" href="#644">644</a> <em class="jxr_javadoccomment"> * @param source The data to convert</em>
<a class="jxr_linenumber" name="645" href="#645">645</a> <em class="jxr_javadoccomment"> * @param off Offset in array where conversion should begin</em>
<a class="jxr_linenumber" name="646" href="#646">646</a> <em class="jxr_javadoccomment"> * @param len Length of data to convert</em>
<a class="jxr_linenumber" name="647" href="#647">647</a> <em class="jxr_javadoccomment"> * @return encoded byte array</em>
<a class="jxr_linenumber" name="648" href="#648">648</a> <em class="jxr_javadoccomment"> * @since 1.4</em>
<a class="jxr_linenumber" name="649" href="#649">649</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="650" href="#650">650</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String encodeBytes(byte[] source, <strong class="jxr_keyword">int</strong> off, <strong class="jxr_keyword">int</strong> len) {
<a class="jxr_linenumber" name="651" href="#651">651</a> <strong class="jxr_keyword">return</strong> encodeBytes(source, off, len, NO_OPTIONS);
<a class="jxr_linenumber" name="652" href="#652">652</a> } <em class="jxr_comment">// end encodeBytes</em>
<a class="jxr_linenumber" name="653" href="#653">653</a>
<a class="jxr_linenumber" name="654" href="#654">654</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="655" href="#655">655</a> <em class="jxr_javadoccomment"> * Encodes a byte array into Base64 notation.</em>
<a class="jxr_linenumber" name="656" href="#656">656</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="657" href="#657">657</a> <em class="jxr_javadoccomment"> * Valid options:</em>
<a class="jxr_linenumber" name="658" href="#658">658</a> <em class="jxr_javadoccomment"> * &lt;ul&gt;</em>
<a class="jxr_linenumber" name="659" href="#659">659</a> <em class="jxr_javadoccomment"> * &lt;li&gt;GZIP: gzip-compresses object before encoding it.&lt;/li&gt;</em>
<a class="jxr_linenumber" name="660" href="#660">660</a> <em class="jxr_javadoccomment"> * &lt;li&gt;DONT_BREAK_LINES: don't break lines at 76 characters. &lt;i&gt;Note:</em>
<a class="jxr_linenumber" name="661" href="#661">661</a> <em class="jxr_javadoccomment"> * Technically, this makes your encoding non-compliant.&lt;/i&gt;&lt;/li&gt;</em>
<a class="jxr_linenumber" name="662" href="#662">662</a> <em class="jxr_javadoccomment"> * &lt;/ul&gt;</em>
<a class="jxr_linenumber" name="663" href="#663">663</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="664" href="#664">664</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="665" href="#665">665</a> <em class="jxr_javadoccomment"> * Example: &lt;code&gt;encodeBytes( myData, Base64.GZIP )&lt;/code&gt; or</em>
<a class="jxr_linenumber" name="666" href="#666">666</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="667" href="#667">667</a> <em class="jxr_javadoccomment"> * Example:</em>
<a class="jxr_linenumber" name="668" href="#668">668</a> <em class="jxr_javadoccomment"> * &lt;code&gt;encodeBytes( myData, Base64.GZIP | Base64.DONT_BREAK_LINES )&lt;/code&gt;</em>
<a class="jxr_linenumber" name="669" href="#669">669</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="670" href="#670">670</a> <em class="jxr_javadoccomment"> * @param source The data to convert</em>
<a class="jxr_linenumber" name="671" href="#671">671</a> <em class="jxr_javadoccomment"> * @param off Offset in array where conversion should begin</em>
<a class="jxr_linenumber" name="672" href="#672">672</a> <em class="jxr_javadoccomment"> * @param len Length of data to convert</em>
<a class="jxr_linenumber" name="673" href="#673">673</a> <em class="jxr_javadoccomment"> * @param options Specified options</em>
<a class="jxr_linenumber" name="674" href="#674">674</a> <em class="jxr_javadoccomment"> * @see Base64#GZIP</em>
<a class="jxr_linenumber" name="675" href="#675">675</a> <em class="jxr_javadoccomment"> * @see Base64#DONT_BREAK_LINES</em>
<a class="jxr_linenumber" name="676" href="#676">676</a> <em class="jxr_javadoccomment"> * @see Base64#URL_SAFE</em>
<a class="jxr_linenumber" name="677" href="#677">677</a> <em class="jxr_javadoccomment"> * @see Base64#ORDERED</em>
<a class="jxr_linenumber" name="678" href="#678">678</a> <em class="jxr_javadoccomment"> * @return encoded byte array</em>
<a class="jxr_linenumber" name="679" href="#679">679</a> <em class="jxr_javadoccomment"> * @since 2.0</em>
<a class="jxr_linenumber" name="680" href="#680">680</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="681" href="#681">681</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String encodeBytes(byte[] source, <strong class="jxr_keyword">int</strong> off, <strong class="jxr_keyword">int</strong> len, <strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="682" href="#682">682</a> <strong class="jxr_keyword">if</strong> ((options &amp; GZIP) == GZIP) { <em class="jxr_comment">// Compress?</em>
<a class="jxr_linenumber" name="683" href="#683">683</a> <em class="jxr_comment">// GZip -&gt; Base64 -&gt; ByteArray</em>
<a class="jxr_linenumber" name="684" href="#684">684</a> ByteArrayOutputStream baos = <strong class="jxr_keyword">new</strong> ByteArrayOutputStream();
<a class="jxr_linenumber" name="685" href="#685">685</a> GZIPOutputStream gzos = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="686" href="#686">686</a>
<a class="jxr_linenumber" name="687" href="#687">687</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="688" href="#688">688</a> gzos =
<a class="jxr_linenumber" name="689" href="#689">689</a> <strong class="jxr_keyword">new</strong> GZIPOutputStream(<strong class="jxr_keyword">new</strong> <a href="../../../../org/trafodion/dcs/util/Base64.html">Base64OutputStream</a>(baos, ENCODE | options));
<a class="jxr_linenumber" name="690" href="#690">690</a>
<a class="jxr_linenumber" name="691" href="#691">691</a> gzos.write(source, off, len);
<a class="jxr_linenumber" name="692" href="#692">692</a> gzos.close();
<a class="jxr_linenumber" name="693" href="#693">693</a> gzos = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="694" href="#694">694</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(baos.toByteArray(), PREFERRED_ENCODING);
<a class="jxr_linenumber" name="695" href="#695">695</a>
<a class="jxr_linenumber" name="696" href="#696">696</a> } <strong class="jxr_keyword">catch</strong> (UnsupportedEncodingException uue) {
<a class="jxr_linenumber" name="697" href="#697">697</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(baos.toByteArray());
<a class="jxr_linenumber" name="698" href="#698">698</a>
<a class="jxr_linenumber" name="699" href="#699">699</a> } <strong class="jxr_keyword">catch</strong> (IOException e) {
<a class="jxr_linenumber" name="700" href="#700">700</a> LOG.error(<span class="jxr_string">"error encoding byte array"</span>, e);
<a class="jxr_linenumber" name="701" href="#701">701</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="702" href="#702">702</a>
<a class="jxr_linenumber" name="703" href="#703">703</a> } <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="704" href="#704">704</a> <strong class="jxr_keyword">if</strong> (gzos != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="705" href="#705">705</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="706" href="#706">706</a> gzos.close();
<a class="jxr_linenumber" name="707" href="#707">707</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a class="jxr_linenumber" name="708" href="#708">708</a> LOG.error(<span class="jxr_string">"error closing GZIPOutputStream"</span>, e);
<a class="jxr_linenumber" name="709" href="#709">709</a> }
<a class="jxr_linenumber" name="710" href="#710">710</a> }
<a class="jxr_linenumber" name="711" href="#711">711</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="712" href="#712">712</a> baos.close();
<a class="jxr_linenumber" name="713" href="#713">713</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a class="jxr_linenumber" name="714" href="#714">714</a> LOG.error(<span class="jxr_string">"error closing ByteArrayOutputStream"</span>, e);
<a class="jxr_linenumber" name="715" href="#715">715</a> }
<a class="jxr_linenumber" name="716" href="#716">716</a> } <em class="jxr_comment">// end finally</em>
<a class="jxr_linenumber" name="717" href="#717">717</a>
<a class="jxr_linenumber" name="718" href="#718">718</a> } <em class="jxr_comment">// end Compress</em>
<a class="jxr_linenumber" name="719" href="#719">719</a>
<a class="jxr_linenumber" name="720" href="#720">720</a> <em class="jxr_comment">// Don't compress. Better not to use streams at all then.</em>
<a class="jxr_linenumber" name="721" href="#721">721</a>
<a class="jxr_linenumber" name="722" href="#722">722</a> <strong class="jxr_keyword">boolean</strong> breakLines = ((options &amp; DONT_BREAK_LINES) == 0);
<a class="jxr_linenumber" name="723" href="#723">723</a>
<a class="jxr_linenumber" name="724" href="#724">724</a> <strong class="jxr_keyword">int</strong> len43 = len * 4 / 3;
<a class="jxr_linenumber" name="725" href="#725">725</a> byte[] outBuff =
<a class="jxr_linenumber" name="726" href="#726">726</a> <strong class="jxr_keyword">new</strong> byte[(len43) <em class="jxr_comment">// Main 4:3</em>
<a class="jxr_linenumber" name="727" href="#727">727</a> + ((len % 3) &gt; 0 ? 4 : 0) <em class="jxr_comment">// padding</em>
<a class="jxr_linenumber" name="728" href="#728">728</a> + (breakLines ? (len43 / MAX_LINE_LENGTH) : 0)]; <em class="jxr_comment">// New lines</em>
<a class="jxr_linenumber" name="729" href="#729">729</a> <strong class="jxr_keyword">int</strong> d = 0;
<a class="jxr_linenumber" name="730" href="#730">730</a> <strong class="jxr_keyword">int</strong> e = 0;
<a class="jxr_linenumber" name="731" href="#731">731</a> <strong class="jxr_keyword">int</strong> len2 = len - 2;
<a class="jxr_linenumber" name="732" href="#732">732</a> <strong class="jxr_keyword">int</strong> lineLength = 0;
<a class="jxr_linenumber" name="733" href="#733">733</a> <strong class="jxr_keyword">for</strong> (; d &lt; len2; d += 3, e += 4) {
<a class="jxr_linenumber" name="734" href="#734">734</a> encode3to4(source, d + off, 3, outBuff, e, options);
<a class="jxr_linenumber" name="735" href="#735">735</a>
<a class="jxr_linenumber" name="736" href="#736">736</a> lineLength += 4;
<a class="jxr_linenumber" name="737" href="#737">737</a> <strong class="jxr_keyword">if</strong> (breakLines &amp;&amp; lineLength == MAX_LINE_LENGTH) {
<a class="jxr_linenumber" name="738" href="#738">738</a> outBuff[e + 4] = NEW_LINE;
<a class="jxr_linenumber" name="739" href="#739">739</a> e++;
<a class="jxr_linenumber" name="740" href="#740">740</a> lineLength = 0;
<a class="jxr_linenumber" name="741" href="#741">741</a> } <em class="jxr_comment">// end if: end of line</em>
<a class="jxr_linenumber" name="742" href="#742">742</a> } <em class="jxr_comment">// end for: each piece of array</em>
<a class="jxr_linenumber" name="743" href="#743">743</a>
<a class="jxr_linenumber" name="744" href="#744">744</a> <strong class="jxr_keyword">if</strong> (d &lt; len) {
<a class="jxr_linenumber" name="745" href="#745">745</a> encode3to4(source, d + off, len - d, outBuff, e, options);
<a class="jxr_linenumber" name="746" href="#746">746</a> e += 4;
<a class="jxr_linenumber" name="747" href="#747">747</a> } <em class="jxr_comment">// end if: some padding needed</em>
<a class="jxr_linenumber" name="748" href="#748">748</a>
<a class="jxr_linenumber" name="749" href="#749">749</a> <em class="jxr_comment">// Return value according to relevant encoding.</em>
<a class="jxr_linenumber" name="750" href="#750">750</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="751" href="#751">751</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(outBuff, 0, e, PREFERRED_ENCODING);
<a class="jxr_linenumber" name="752" href="#752">752</a>
<a class="jxr_linenumber" name="753" href="#753">753</a> } <strong class="jxr_keyword">catch</strong> (UnsupportedEncodingException uue) {
<a class="jxr_linenumber" name="754" href="#754">754</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(outBuff, 0, e);
<a class="jxr_linenumber" name="755" href="#755">755</a> }
<a class="jxr_linenumber" name="756" href="#756">756</a> } <em class="jxr_comment">// end encodeBytes</em>
<a class="jxr_linenumber" name="757" href="#757">757</a>
<a class="jxr_linenumber" name="758" href="#758">758</a> <em class="jxr_comment">/*<em class="jxr_comment"> ******** D E C O D I N G M E T H O D S ******** */</em></em>
<a class="jxr_linenumber" name="759" href="#759">759</a>
<a class="jxr_linenumber" name="760" href="#760">760</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="761" href="#761">761</a> <em class="jxr_javadoccomment"> * Decodes four bytes from array &lt;var&gt;source&lt;/var&gt; and writes the resulting</em>
<a class="jxr_linenumber" name="762" href="#762">762</a> <em class="jxr_javadoccomment"> * bytes (up to three of them) to &lt;var&gt;destination&lt;/var&gt;. The source and</em>
<a class="jxr_linenumber" name="763" href="#763">763</a> <em class="jxr_javadoccomment"> * destination arrays can be manipulated anywhere along their length by</em>
<a class="jxr_linenumber" name="764" href="#764">764</a> <em class="jxr_javadoccomment"> * specifying &lt;var&gt;srcOffset&lt;/var&gt; and &lt;var&gt;destOffset&lt;/var&gt;. This method</em>
<a class="jxr_linenumber" name="765" href="#765">765</a> <em class="jxr_javadoccomment"> * does not check to make sure your arrays are large enough to accomodate</em>
<a class="jxr_linenumber" name="766" href="#766">766</a> <em class="jxr_javadoccomment"> * &lt;var&gt;srcOffset&lt;/var&gt; + 4 for the &lt;var&gt;source&lt;/var&gt; array or</em>
<a class="jxr_linenumber" name="767" href="#767">767</a> <em class="jxr_javadoccomment"> * &lt;var&gt;destOffset&lt;/var&gt; + 3 for the &lt;var&gt;destination&lt;/var&gt; array. This</em>
<a class="jxr_linenumber" name="768" href="#768">768</a> <em class="jxr_javadoccomment"> * method returns the actual number of bytes that were converted from the</em>
<a class="jxr_linenumber" name="769" href="#769">769</a> <em class="jxr_javadoccomment"> * Base64 encoding.</em>
<a class="jxr_linenumber" name="770" href="#770">770</a> <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="771" href="#771">771</a> <em class="jxr_javadoccomment"> * This is the lowest level of the decoding methods with all possible</em>
<a class="jxr_linenumber" name="772" href="#772">772</a> <em class="jxr_javadoccomment"> * parameters.</em>
<a class="jxr_linenumber" name="773" href="#773">773</a> <em class="jxr_javadoccomment"> * &lt;/p&gt;</em>
<a class="jxr_linenumber" name="774" href="#774">774</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="775" href="#775">775</a> <em class="jxr_javadoccomment"> * @param source the array to convert</em>
<a class="jxr_linenumber" name="776" href="#776">776</a> <em class="jxr_javadoccomment"> * @param srcOffset the index where conversion begins</em>
<a class="jxr_linenumber" name="777" href="#777">777</a> <em class="jxr_javadoccomment"> * @param destination the array to hold the conversion</em>
<a class="jxr_linenumber" name="778" href="#778">778</a> <em class="jxr_javadoccomment"> * @param destOffset the index where output will be put</em>
<a class="jxr_linenumber" name="779" href="#779">779</a> <em class="jxr_javadoccomment"> * @param options options for getDecoabet</em>
<a class="jxr_linenumber" name="780" href="#780">780</a> <em class="jxr_javadoccomment"> * @see Base64#URL_SAFE</em>
<a class="jxr_linenumber" name="781" href="#781">781</a> <em class="jxr_javadoccomment"> * @see Base64#ORDERED</em>
<a class="jxr_linenumber" name="782" href="#782">782</a> <em class="jxr_javadoccomment"> * @return the number of decoded bytes converted</em>
<a class="jxr_linenumber" name="783" href="#783">783</a> <em class="jxr_javadoccomment"> * @since 1.3</em>
<a class="jxr_linenumber" name="784" href="#784">784</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="785" href="#785">785</a> @SuppressWarnings({<span class="jxr_string">"ConstantConditions"</span>})
<a class="jxr_linenumber" name="786" href="#786">786</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> decode4to3(byte[] source, <strong class="jxr_keyword">int</strong> srcOffset,
<a class="jxr_linenumber" name="787" href="#787">787</a> byte[] destination, <strong class="jxr_keyword">int</strong> destOffset, <strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="788" href="#788">788</a> byte[] DECODABET = getDecodabet(options);
<a class="jxr_linenumber" name="789" href="#789">789</a>
<a class="jxr_linenumber" name="790" href="#790">790</a> <strong class="jxr_keyword">if</strong> (source[srcOffset + 2] == EQUALS_SIGN) { <em class="jxr_comment">// Example: Dk==</em>
<a class="jxr_linenumber" name="791" href="#791">791</a> <em class="jxr_comment">// Two ways to do the same thing. Don't know which way I like best.</em>
<a class="jxr_linenumber" name="792" href="#792">792</a> <em class="jxr_comment">// int outBuff = ( ( DECODABET[ source[ srcOffset ] ] &lt;&lt; 24 ) &gt;&gt;&gt; 6 )</em>
<a class="jxr_linenumber" name="793" href="#793">793</a> <em class="jxr_comment">// | ( ( DECODABET[ source[ srcOffset + 1] ] &lt;&lt; 24 ) &gt;&gt;&gt; 12 );</em>
<a class="jxr_linenumber" name="794" href="#794">794</a> <strong class="jxr_keyword">int</strong> outBuff =
<a class="jxr_linenumber" name="795" href="#795">795</a> ((DECODABET[source[srcOffset]] &amp; 0xFF) &lt;&lt; 18)
<a class="jxr_linenumber" name="796" href="#796">796</a> | ((DECODABET[source[srcOffset + 1]] &amp; 0xFF) &lt;&lt; 12);
<a class="jxr_linenumber" name="797" href="#797">797</a>
<a class="jxr_linenumber" name="798" href="#798">798</a> destination[destOffset] = (byte) (outBuff &gt;&gt;&gt; 16);
<a class="jxr_linenumber" name="799" href="#799">799</a> <strong class="jxr_keyword">return</strong> 1;
<a class="jxr_linenumber" name="800" href="#800">800</a>
<a class="jxr_linenumber" name="801" href="#801">801</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (source[srcOffset + 3] == EQUALS_SIGN) { <em class="jxr_comment">// Example: DkL=</em>
<a class="jxr_linenumber" name="802" href="#802">802</a> <em class="jxr_comment">// Two ways to do the same thing. Don't know which way I like best.</em>
<a class="jxr_linenumber" name="803" href="#803">803</a> <em class="jxr_comment">// int outBuff = ( ( DECODABET[ source[ srcOffset ] ] &lt;&lt; 24 ) &gt;&gt;&gt; 6 )</em>
<a class="jxr_linenumber" name="804" href="#804">804</a> <em class="jxr_comment">// | ( ( DECODABET[ source[ srcOffset + 1 ] ] &lt;&lt; 24 ) &gt;&gt;&gt; 12 )</em>
<a class="jxr_linenumber" name="805" href="#805">805</a> <em class="jxr_comment">// | ( ( DECODABET[ source[ srcOffset + 2 ] ] &lt;&lt; 24 ) &gt;&gt;&gt; 18 );</em>
<a class="jxr_linenumber" name="806" href="#806">806</a> <strong class="jxr_keyword">int</strong> outBuff =
<a class="jxr_linenumber" name="807" href="#807">807</a> ((DECODABET[source[srcOffset]] &amp; 0xFF) &lt;&lt; 18)
<a class="jxr_linenumber" name="808" href="#808">808</a> | ((DECODABET[source[srcOffset + 1]] &amp; 0xFF) &lt;&lt; 12)
<a class="jxr_linenumber" name="809" href="#809">809</a> | ((DECODABET[source[srcOffset + 2]] &amp; 0xFF) &lt;&lt; 6);
<a class="jxr_linenumber" name="810" href="#810">810</a>
<a class="jxr_linenumber" name="811" href="#811">811</a> destination[destOffset] = (byte) (outBuff &gt;&gt;&gt; 16);
<a class="jxr_linenumber" name="812" href="#812">812</a> destination[destOffset + 1] = (byte) (outBuff &gt;&gt;&gt; 8);
<a class="jxr_linenumber" name="813" href="#813">813</a> <strong class="jxr_keyword">return</strong> 2;
<a class="jxr_linenumber" name="814" href="#814">814</a>
<a class="jxr_linenumber" name="815" href="#815">815</a> } <strong class="jxr_keyword">else</strong> { <em class="jxr_comment">// Example: DkLE</em>
<a class="jxr_linenumber" name="816" href="#816">816</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="817" href="#817">817</a> <em class="jxr_comment">// Two ways to do the same thing. Don't know which way I like best.</em>
<a class="jxr_linenumber" name="818" href="#818">818</a> <em class="jxr_comment">// int outBuff = ( ( DECODABET[ source[ srcOffset ] ] &lt;&lt; 24 ) &gt;&gt;&gt; 6 )</em>
<a class="jxr_linenumber" name="819" href="#819">819</a> <em class="jxr_comment">// | ( ( DECODABET[ source[ srcOffset + 1 ] ] &lt;&lt; 24 ) &gt;&gt;&gt; 12 )</em>
<a class="jxr_linenumber" name="820" href="#820">820</a> <em class="jxr_comment">// | ( ( DECODABET[ source[ srcOffset + 2 ] ] &lt;&lt; 24 ) &gt;&gt;&gt; 18 )</em>
<a class="jxr_linenumber" name="821" href="#821">821</a> <em class="jxr_comment">// | ( ( DECODABET[ source[ srcOffset + 3 ] ] &lt;&lt; 24 ) &gt;&gt;&gt; 24 );</em>
<a class="jxr_linenumber" name="822" href="#822">822</a> <strong class="jxr_keyword">int</strong> outBuff =
<a class="jxr_linenumber" name="823" href="#823">823</a> ((DECODABET[source[srcOffset]] &amp; 0xFF) &lt;&lt; 18)
<a class="jxr_linenumber" name="824" href="#824">824</a> | ((DECODABET[source[srcOffset + 1]] &amp; 0xFF) &lt;&lt; 12)
<a class="jxr_linenumber" name="825" href="#825">825</a> | ((DECODABET[source[srcOffset + 2]] &amp; 0xFF) &lt;&lt; 6)
<a class="jxr_linenumber" name="826" href="#826">826</a> | ((DECODABET[source[srcOffset + 3]] &amp; 0xFF));
<a class="jxr_linenumber" name="827" href="#827">827</a>
<a class="jxr_linenumber" name="828" href="#828">828</a> destination[destOffset] = (byte) (outBuff &gt;&gt; 16);
<a class="jxr_linenumber" name="829" href="#829">829</a> destination[destOffset + 1] = (byte) (outBuff &gt;&gt; 8);
<a class="jxr_linenumber" name="830" href="#830">830</a> destination[destOffset + 2] = (byte) (outBuff);
<a class="jxr_linenumber" name="831" href="#831">831</a>
<a class="jxr_linenumber" name="832" href="#832">832</a> <strong class="jxr_keyword">return</strong> 3;
<a class="jxr_linenumber" name="833" href="#833">833</a>
<a class="jxr_linenumber" name="834" href="#834">834</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a class="jxr_linenumber" name="835" href="#835">835</a> LOG.error(<span class="jxr_string">"error decoding bytes at "</span> + source[srcOffset] + <span class="jxr_string">": "</span> +
<a class="jxr_linenumber" name="836" href="#836">836</a> (DECODABET[source[srcOffset]]) + <span class="jxr_string">", "</span> + source[srcOffset + 1] +
<a class="jxr_linenumber" name="837" href="#837">837</a> <span class="jxr_string">": "</span> + (DECODABET[source[srcOffset + 1]]) + <span class="jxr_string">", "</span> +
<a class="jxr_linenumber" name="838" href="#838">838</a> source[srcOffset + 2] + <span class="jxr_string">": "</span> + (DECODABET[source[srcOffset + 2]]) +
<a class="jxr_linenumber" name="839" href="#839">839</a> <span class="jxr_string">", "</span> + source[srcOffset + 3] + <span class="jxr_string">": "</span> +
<a class="jxr_linenumber" name="840" href="#840">840</a> (DECODABET[source[srcOffset + 3]]), e);
<a class="jxr_linenumber" name="841" href="#841">841</a> <strong class="jxr_keyword">return</strong> -1;
<a class="jxr_linenumber" name="842" href="#842">842</a> } <em class="jxr_comment">// end catch</em>
<a class="jxr_linenumber" name="843" href="#843">843</a> }
<a class="jxr_linenumber" name="844" href="#844">844</a> } <em class="jxr_comment">// end decodeToBytes</em>
<a class="jxr_linenumber" name="845" href="#845">845</a>
<a class="jxr_linenumber" name="846" href="#846">846</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="847" href="#847">847</a> <em class="jxr_javadoccomment"> * Very low-level access to decoding ASCII characters in the form of a byte</em>
<a class="jxr_linenumber" name="848" href="#848">848</a> <em class="jxr_javadoccomment"> * array. Does not support automatically gunzipping or any other "fancy"</em>
<a class="jxr_linenumber" name="849" href="#849">849</a> <em class="jxr_javadoccomment"> * features.</em>
<a class="jxr_linenumber" name="850" href="#850">850</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="851" href="#851">851</a> <em class="jxr_javadoccomment"> * @param source The Base64 encoded data</em>
<a class="jxr_linenumber" name="852" href="#852">852</a> <em class="jxr_javadoccomment"> * @param off The offset of where to begin decoding</em>
<a class="jxr_linenumber" name="853" href="#853">853</a> <em class="jxr_javadoccomment"> * @param len The length of characters to decode</em>
<a class="jxr_linenumber" name="854" href="#854">854</a> <em class="jxr_javadoccomment"> * @param options options for getDecodabet</em>
<a class="jxr_linenumber" name="855" href="#855">855</a> <em class="jxr_javadoccomment"> * @see Base64#URL_SAFE</em>
<a class="jxr_linenumber" name="856" href="#856">856</a> <em class="jxr_javadoccomment"> * @see Base64#ORDERED</em>
<a class="jxr_linenumber" name="857" href="#857">857</a> <em class="jxr_javadoccomment"> * @return decoded data</em>
<a class="jxr_linenumber" name="858" href="#858">858</a> <em class="jxr_javadoccomment"> * @since 1.3</em>
<a class="jxr_linenumber" name="859" href="#859">859</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="860" href="#860">860</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] decode(byte[] source, <strong class="jxr_keyword">int</strong> off, <strong class="jxr_keyword">int</strong> len, <strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="861" href="#861">861</a> byte[] DECODABET = getDecodabet(options);
<a class="jxr_linenumber" name="862" href="#862">862</a>
<a class="jxr_linenumber" name="863" href="#863">863</a> <strong class="jxr_keyword">int</strong> len34 = len * 3 / 4;
<a class="jxr_linenumber" name="864" href="#864">864</a> byte[] outBuff = <strong class="jxr_keyword">new</strong> byte[len34]; <em class="jxr_comment">// Upper limit on size of output</em>
<a class="jxr_linenumber" name="865" href="#865">865</a> <strong class="jxr_keyword">int</strong> outBuffPosn = 0;
<a class="jxr_linenumber" name="866" href="#866">866</a>
<a class="jxr_linenumber" name="867" href="#867">867</a> byte[] b4 = <strong class="jxr_keyword">new</strong> byte[4];
<a class="jxr_linenumber" name="868" href="#868">868</a> <strong class="jxr_keyword">int</strong> b4Posn = 0;
<a class="jxr_linenumber" name="869" href="#869">869</a> <strong class="jxr_keyword">int</strong> i;
<a class="jxr_linenumber" name="870" href="#870">870</a> byte sbiCrop;
<a class="jxr_linenumber" name="871" href="#871">871</a> byte sbiDecode;
<a class="jxr_linenumber" name="872" href="#872">872</a> <strong class="jxr_keyword">for</strong> (i = off; i &lt; off + len; i++) {
<a class="jxr_linenumber" name="873" href="#873">873</a> sbiCrop = (byte) (source[i] &amp; 0x7f); <em class="jxr_comment">// Only the low seven bits</em>
<a class="jxr_linenumber" name="874" href="#874">874</a> sbiDecode = DECODABET[sbiCrop];
<a class="jxr_linenumber" name="875" href="#875">875</a>
<a class="jxr_linenumber" name="876" href="#876">876</a> <strong class="jxr_keyword">if</strong> (sbiDecode &gt;= WHITE_SPACE_ENC) { <em class="jxr_comment">// Whitespace, Equals or better</em>
<a class="jxr_linenumber" name="877" href="#877">877</a> <strong class="jxr_keyword">if</strong> (sbiDecode &gt;= EQUALS_SIGN_ENC) { <em class="jxr_comment">// Equals or better</em>
<a class="jxr_linenumber" name="878" href="#878">878</a> b4[b4Posn++] = sbiCrop;
<a class="jxr_linenumber" name="879" href="#879">879</a> <strong class="jxr_keyword">if</strong> (b4Posn &gt; 3) {
<a class="jxr_linenumber" name="880" href="#880">880</a> outBuffPosn += decode4to3(b4, 0, outBuff, outBuffPosn, options);
<a class="jxr_linenumber" name="881" href="#881">881</a> b4Posn = 0;
<a class="jxr_linenumber" name="882" href="#882">882</a>
<a class="jxr_linenumber" name="883" href="#883">883</a> <em class="jxr_comment">// If that was the equals sign, break out of 'for' loop</em>
<a class="jxr_linenumber" name="884" href="#884">884</a> <strong class="jxr_keyword">if</strong> (sbiCrop == EQUALS_SIGN)
<a class="jxr_linenumber" name="885" href="#885">885</a> <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="886" href="#886">886</a> } <em class="jxr_comment">// end if: quartet built</em>
<a class="jxr_linenumber" name="887" href="#887">887</a> } <em class="jxr_comment">// end if: equals sign or better</em>
<a class="jxr_linenumber" name="888" href="#888">888</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="889" href="#889">889</a> LOG.error(<span class="jxr_string">"Bad Base64 input character at "</span> + i + <span class="jxr_string">": "</span> + source[i] +
<a class="jxr_linenumber" name="890" href="#890">890</a> <span class="jxr_string">"(decimal)"</span>);
<a class="jxr_linenumber" name="891" href="#891">891</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="892" href="#892">892</a> } <em class="jxr_comment">// end else:</em>
<a class="jxr_linenumber" name="893" href="#893">893</a> } <em class="jxr_comment">// each input character</em>
<a class="jxr_linenumber" name="894" href="#894">894</a>
<a class="jxr_linenumber" name="895" href="#895">895</a> byte[] out = <strong class="jxr_keyword">new</strong> byte[outBuffPosn];
<a class="jxr_linenumber" name="896" href="#896">896</a> System.arraycopy(outBuff, 0, out, 0, outBuffPosn);
<a class="jxr_linenumber" name="897" href="#897">897</a> <strong class="jxr_keyword">return</strong> out;
<a class="jxr_linenumber" name="898" href="#898">898</a> } <em class="jxr_comment">// end decode</em>
<a class="jxr_linenumber" name="899" href="#899">899</a>
<a class="jxr_linenumber" name="900" href="#900">900</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="901" href="#901">901</a> <em class="jxr_javadoccomment"> * Decodes data from Base64 notation, automatically detecting gzip-compressed</em>
<a class="jxr_linenumber" name="902" href="#902">902</a> <em class="jxr_javadoccomment"> * data and decompressing it.</em>
<a class="jxr_linenumber" name="903" href="#903">903</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="904" href="#904">904</a> <em class="jxr_javadoccomment"> * @param s the string to decode</em>
<a class="jxr_linenumber" name="905" href="#905">905</a> <em class="jxr_javadoccomment"> * @return the decoded data</em>
<a class="jxr_linenumber" name="906" href="#906">906</a> <em class="jxr_javadoccomment"> * @since 1.4</em>
<a class="jxr_linenumber" name="907" href="#907">907</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="908" href="#908">908</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] decode(String s) {
<a class="jxr_linenumber" name="909" href="#909">909</a> <strong class="jxr_keyword">return</strong> decode(s, NO_OPTIONS);
<a class="jxr_linenumber" name="910" href="#910">910</a> }
<a class="jxr_linenumber" name="911" href="#911">911</a>
<a class="jxr_linenumber" name="912" href="#912">912</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="913" href="#913">913</a> <em class="jxr_javadoccomment"> * Decodes data from Base64 notation, automatically detecting gzip-compressed</em>
<a class="jxr_linenumber" name="914" href="#914">914</a> <em class="jxr_javadoccomment"> * data and decompressing it.</em>
<a class="jxr_linenumber" name="915" href="#915">915</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="916" href="#916">916</a> <em class="jxr_javadoccomment"> * @param s the string to decode</em>
<a class="jxr_linenumber" name="917" href="#917">917</a> <em class="jxr_javadoccomment"> * @param options options for decode</em>
<a class="jxr_linenumber" name="918" href="#918">918</a> <em class="jxr_javadoccomment"> * @see Base64#URL_SAFE</em>
<a class="jxr_linenumber" name="919" href="#919">919</a> <em class="jxr_javadoccomment"> * @see Base64#ORDERED</em>
<a class="jxr_linenumber" name="920" href="#920">920</a> <em class="jxr_javadoccomment"> * @return the decoded data</em>
<a class="jxr_linenumber" name="921" href="#921">921</a> <em class="jxr_javadoccomment"> * @since 1.4</em>
<a class="jxr_linenumber" name="922" href="#922">922</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="923" href="#923">923</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] decode(String s, <strong class="jxr_keyword">int</strong> options) {
<a class="jxr_linenumber" name="924" href="#924">924</a> byte[] bytes;
<a class="jxr_linenumber" name="925" href="#925">925</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="926" href="#926">926</a> bytes = s.getBytes(PREFERRED_ENCODING);
<a class="jxr_linenumber" name="927" href="#927">927</a>
<a class="jxr_linenumber" name="928" href="#928">928</a> } <strong class="jxr_keyword">catch</strong> (UnsupportedEncodingException uee) {
<a class="jxr_linenumber" name="929" href="#929">929</a> bytes = s.getBytes();
<a class="jxr_linenumber" name="930" href="#930">930</a> } <em class="jxr_comment">// end catch</em>
<a class="jxr_linenumber" name="931" href="#931">931</a>
<a class="jxr_linenumber" name="932" href="#932">932</a> <em class="jxr_comment">// Decode</em>
<a class="jxr_linenumber" name="933" href="#933">933</a>
<a class="jxr_linenumber" name="934" href="#934">934</a> bytes = decode(bytes, 0, bytes.length, options);
<a class="jxr_linenumber" name="935" href="#935">935</a>
<a class="jxr_linenumber" name="936" href="#936">936</a> <em class="jxr_comment">// Check to see if it's gzip-compressed</em>
<a class="jxr_linenumber" name="937" href="#937">937</a> <em class="jxr_comment">// GZIP Magic Two-Byte Number: 0x8b1f (35615)</em>
<a class="jxr_linenumber" name="938" href="#938">938</a>
<a class="jxr_linenumber" name="939" href="#939">939</a> <strong class="jxr_keyword">if</strong> (bytes != <strong class="jxr_keyword">null</strong> &amp;&amp; bytes.length &gt;= 4) {
<a class="jxr_linenumber" name="940" href="#940">940</a> <strong class="jxr_keyword">int</strong> head = (bytes[0] &amp; 0xff) | ((bytes[1] &lt;&lt; 8) &amp; 0xff00);
<a class="jxr_linenumber" name="941" href="#941">941</a> <strong class="jxr_keyword">if</strong> (GZIPInputStream.GZIP_MAGIC == head) {
<a class="jxr_linenumber" name="942" href="#942">942</a> GZIPInputStream gzis = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="943" href="#943">943</a> ByteArrayOutputStream baos = <strong class="jxr_keyword">new</strong> ByteArrayOutputStream();
<a class="jxr_linenumber" name="944" href="#944">944</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="945" href="#945">945</a> gzis = <strong class="jxr_keyword">new</strong> GZIPInputStream(<strong class="jxr_keyword">new</strong> ByteArrayInputStream(bytes));
<a class="jxr_linenumber" name="946" href="#946">946</a>
<a class="jxr_linenumber" name="947" href="#947">947</a> byte[] buffer = <strong class="jxr_keyword">new</strong> byte[2048];
<a class="jxr_linenumber" name="948" href="#948">948</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> length; (length = gzis.read(buffer)) &gt;= 0; ) {
<a class="jxr_linenumber" name="949" href="#949">949</a> baos.write(buffer, 0, length);
<a class="jxr_linenumber" name="950" href="#950">950</a> } <em class="jxr_comment">// end while: reading input</em>
<a class="jxr_linenumber" name="951" href="#951">951</a>
<a class="jxr_linenumber" name="952" href="#952">952</a> <em class="jxr_comment">// No error? Get new bytes.</em>
<a class="jxr_linenumber" name="953" href="#953">953</a> bytes = baos.toByteArray();
<a class="jxr_linenumber" name="954" href="#954">954</a>
<a class="jxr_linenumber" name="955" href="#955">955</a> } <strong class="jxr_keyword">catch</strong> (IOException e) {
<a class="jxr_linenumber" name="956" href="#956">956</a> <em class="jxr_comment">// Just return originally-decoded bytes</em>
<a class="jxr_linenumber" name="957" href="#957">957</a>
<a class="jxr_linenumber" name="958" href="#958">958</a> } <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="959" href="#959">959</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="960" href="#960">960</a> baos.close();
<a class="jxr_linenumber" name="961" href="#961">961</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a class="jxr_linenumber" name="962" href="#962">962</a> LOG.error(<span class="jxr_string">"error closing ByteArrayOutputStream"</span>, e);
<a class="jxr_linenumber" name="963" href="#963">963</a> }
<a class="jxr_linenumber" name="964" href="#964">964</a> <strong class="jxr_keyword">if</strong> (gzis != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="965" href="#965">965</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="966" href="#966">966</a> gzis.close();
<a class="jxr_linenumber" name="967" href="#967">967</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a class="jxr_linenumber" name="968" href="#968">968</a> LOG.error(<span class="jxr_string">"error closing GZIPInputStream"</span>, e);
<a class="jxr_linenumber" name="969" href="#969">969</a> }
<a class="jxr_linenumber" name="970" href="#970">970</a> }
<a class="jxr_linenumber" name="971" href="#971">971</a> } <em class="jxr_comment">// end finally</em>
<a class="jxr_linenumber" name="972" href="#972">972</a> } <em class="jxr_comment">// end if: gzipped</em>
<a class="jxr_linenumber" name="973" href="#973">973</a> } <em class="jxr_comment">// end if: bytes.length &gt;= 2</em>
<a class="jxr_linenumber" name="974" href="#974">974</a>
<a class="jxr_linenumber" name="975" href="#975">975</a> <strong class="jxr_keyword">return</strong> bytes;
<a class="jxr_linenumber" name="976" href="#976">976</a> } <em class="jxr_comment">// end decode</em>
<a class="jxr_linenumber" name="977" href="#977">977</a>
<a class="jxr_linenumber" name="978" href="#978">978</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="979" href="#979">979</a> <em class="jxr_javadoccomment"> * Attempts to decode Base64 data and deserialize a Java Object within.</em>
<a class="jxr_linenumber" name="980" href="#980">980</a> <em class="jxr_javadoccomment"> * Returns &lt;tt&gt;null&lt;/tt&gt; if there was an error.</em>
<a class="jxr_linenumber" name="981" href="#981">981</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="982" href="#982">982</a> <em class="jxr_javadoccomment"> * @param encodedObject The Base64 data to decode</em>
<a class="jxr_linenumber" name="983" href="#983">983</a> <em class="jxr_javadoccomment"> * @return The decoded and deserialized object</em>
<a class="jxr_linenumber" name="984" href="#984">984</a> <em class="jxr_javadoccomment"> * @since 1.5</em>
<a class="jxr_linenumber" name="985" href="#985">985</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="986" href="#986">986</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> Object decodeToObject(String encodedObject) {
<a class="jxr_linenumber" name="987" href="#987">987</a> <em class="jxr_comment">// Decode and gunzip if necessary</em>
<a class="jxr_linenumber" name="988" href="#988">988</a> byte[] objBytes = decode(encodedObject);
<a class="jxr_linenumber" name="989" href="#989">989</a>
<a class="jxr_linenumber" name="990" href="#990">990</a> Object obj = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="991" href="#991">991</a> ObjectInputStream ois = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="992" href="#992">992</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="993" href="#993">993</a> ois = <strong class="jxr_keyword">new</strong> ObjectInputStream(<strong class="jxr_keyword">new</strong> ByteArrayInputStream(objBytes));
<a class="jxr_linenumber" name="994" href="#994">994</a> obj = ois.readObject();
<a class="jxr_linenumber" name="995" href="#995">995</a>
<a class="jxr_linenumber" name="996" href="#996">996</a> } <strong class="jxr_keyword">catch</strong> (IOException e) {
<a class="jxr_linenumber" name="997" href="#997">997</a> LOG.error(<span class="jxr_string">"error decoding object"</span>, e);
<a class="jxr_linenumber" name="998" href="#998">998</a>
<a class="