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| <title>Checksum xref</title> |
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| <div id="overview"><a href="../../../../../apidocs/org/apache/archiva/checksum/Checksum.html">View Javadoc</a></div><pre> |
| <a class="jxr_linenumber" name="L1" href="#L1">1</a> <strong class="jxr_keyword">package</strong> org.apache.archiva.checksum; |
| <a class="jxr_linenumber" name="L2" href="#L2">2</a> |
| <a class="jxr_linenumber" name="L3" href="#L3">3</a> <em class="jxr_comment">/*</em> |
| <a class="jxr_linenumber" name="L4" href="#L4">4</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em> |
| <a class="jxr_linenumber" name="L5" href="#L5">5</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em> |
| <a class="jxr_linenumber" name="L6" href="#L6">6</a> <em class="jxr_comment"> * distributed with this work for additional information</em> |
| <a class="jxr_linenumber" name="L7" href="#L7">7</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em> |
| <a class="jxr_linenumber" name="L8" href="#L8">8</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em> |
| <a class="jxr_linenumber" name="L9" href="#L9">9</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em> |
| <a class="jxr_linenumber" name="L10" href="#L10">10</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em> |
| <a class="jxr_linenumber" name="L11" href="#L11">11</a> <em class="jxr_comment"> *</em> |
| <a class="jxr_linenumber" name="L12" href="#L12">12</a> <em class="jxr_comment"> * <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="L13" href="#L13">13</a> <em class="jxr_comment"> *</em> |
| <a class="jxr_linenumber" name="L14" href="#L14">14</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em> |
| <a class="jxr_linenumber" name="L15" href="#L15">15</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em> |
| <a class="jxr_linenumber" name="L16" href="#L16">16</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em> |
| <a class="jxr_linenumber" name="L17" href="#L17">17</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em> |
| <a class="jxr_linenumber" name="L18" href="#L18">18</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em> |
| <a class="jxr_linenumber" name="L19" href="#L19">19</a> <em class="jxr_comment"> * under the License.</em> |
| <a class="jxr_linenumber" name="L20" href="#L20">20</a> <em class="jxr_comment"> */</em> |
| <a class="jxr_linenumber" name="L21" href="#L21">21</a> |
| <a class="jxr_linenumber" name="L22" href="#L22">22</a> <strong class="jxr_keyword">import</strong> java.io.IOException; |
| <a class="jxr_linenumber" name="L23" href="#L23">23</a> <strong class="jxr_keyword">import</strong> java.nio.ByteBuffer; |
| <a class="jxr_linenumber" name="L24" href="#L24">24</a> <strong class="jxr_keyword">import</strong> java.nio.MappedByteBuffer; |
| <a class="jxr_linenumber" name="L25" href="#L25">25</a> <strong class="jxr_keyword">import</strong> java.nio.channels.FileChannel; |
| <a class="jxr_linenumber" name="L26" href="#L26">26</a> <strong class="jxr_keyword">import</strong> java.nio.file.Path; |
| <a class="jxr_linenumber" name="L27" href="#L27">27</a> <strong class="jxr_keyword">import</strong> java.nio.file.StandardOpenOption; |
| <a class="jxr_linenumber" name="L28" href="#L28">28</a> <strong class="jxr_keyword">import</strong> java.security.MessageDigest; |
| <a class="jxr_linenumber" name="L29" href="#L29">29</a> <strong class="jxr_keyword">import</strong> java.security.NoSuchAlgorithmException; |
| <a class="jxr_linenumber" name="L30" href="#L30">30</a> |
| <a class="jxr_linenumber" name="L31" href="#L31">31</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="L32" href="#L32">32</a> <em class="jxr_javadoccomment"> * Checksum - simple checksum hashing routines.</em> |
| <a class="jxr_linenumber" name="L33" href="#L33">33</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="L34" href="#L34">34</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a name="Checksum" href="../../../../org/apache/archiva/checksum/Checksum.html#Checksum">Checksum</a> |
| <a class="jxr_linenumber" name="L35" href="#L35">35</a> { |
| <a class="jxr_linenumber" name="L36" href="#L36">36</a> <strong class="jxr_keyword">private</strong> byte[] result = <strong class="jxr_keyword">new</strong> byte[0]; |
| <a class="jxr_linenumber" name="L37" href="#L37">37</a> |
| <a class="jxr_linenumber" name="L38" href="#L38">38</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> MessageDigest md; |
| <a class="jxr_linenumber" name="L39" href="#L39">39</a> |
| <a class="jxr_linenumber" name="L40" href="#L40">40</a> <strong class="jxr_keyword">private</strong> <a name="ChecksumAlgorithm" href="../../../../org/apache/archiva/checksum/ChecksumAlgorithm.html#ChecksumAlgorithm">ChecksumAlgorithm</a> checksumAlgorithm; |
| <a class="jxr_linenumber" name="L41" href="#L41">41</a> |
| <a class="jxr_linenumber" name="L42" href="#L42">42</a> <strong class="jxr_keyword">public</strong> <a name="Checksum" href="../../../../org/apache/archiva/checksum/Checksum.html#Checksum">Checksum</a>( <a name="ChecksumAlgorithm" href="../../../../org/apache/archiva/checksum/ChecksumAlgorithm.html#ChecksumAlgorithm">ChecksumAlgorithm</a> checksumAlgorithm ) |
| <a class="jxr_linenumber" name="L43" href="#L43">43</a> { |
| <a class="jxr_linenumber" name="L44" href="#L44">44</a> <strong class="jxr_keyword">this</strong>.checksumAlgorithm = checksumAlgorithm; |
| <a class="jxr_linenumber" name="L45" href="#L45">45</a> <strong class="jxr_keyword">try</strong> |
| <a class="jxr_linenumber" name="L46" href="#L46">46</a> { |
| <a class="jxr_linenumber" name="L47" href="#L47">47</a> md = MessageDigest.getInstance( checksumAlgorithm.getAlgorithm() ); |
| <a class="jxr_linenumber" name="L48" href="#L48">48</a> } |
| <a class="jxr_linenumber" name="L49" href="#L49">49</a> <strong class="jxr_keyword">catch</strong> ( NoSuchAlgorithmException e ) |
| <a class="jxr_linenumber" name="L50" href="#L50">50</a> { |
| <a class="jxr_linenumber" name="L51" href="#L51">51</a> <em class="jxr_comment">// Not really possible, but here none-the-less</em> |
| <a class="jxr_linenumber" name="L52" href="#L52">52</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalStateException( |
| <a class="jxr_linenumber" name="L53" href="#L53">53</a> <span class="jxr_string">"Unable to initialize MessageDigest algorithm "</span> + checksumAlgorithm.getAlgorithm() + <span class="jxr_string">" : "</span> |
| <a class="jxr_linenumber" name="L54" href="#L54">54</a> + e.getMessage(), e ); |
| <a class="jxr_linenumber" name="L55" href="#L55">55</a> } |
| <a class="jxr_linenumber" name="L56" href="#L56">56</a> } |
| <a class="jxr_linenumber" name="L57" href="#L57">57</a> |
| <a class="jxr_linenumber" name="L58" href="#L58">58</a> <strong class="jxr_keyword">public</strong> String getChecksum() |
| <a class="jxr_linenumber" name="L59" href="#L59">59</a> { |
| <a class="jxr_linenumber" name="L60" href="#L60">60</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.result.length==0) { |
| <a class="jxr_linenumber" name="L61" href="#L61">61</a> finish(); |
| <a class="jxr_linenumber" name="L62" href="#L62">62</a> } |
| <a class="jxr_linenumber" name="L63" href="#L63">63</a> <strong class="jxr_keyword">return</strong> Hex.encode( <strong class="jxr_keyword">this</strong>.result ); |
| <a class="jxr_linenumber" name="L64" href="#L64">64</a> } |
| <a class="jxr_linenumber" name="L65" href="#L65">65</a> |
| <a class="jxr_linenumber" name="L66" href="#L66">66</a> <strong class="jxr_keyword">public</strong> byte[] getChecksumBytes() { |
| <a class="jxr_linenumber" name="L67" href="#L67">67</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.result.length==0) { |
| <a class="jxr_linenumber" name="L68" href="#L68">68</a> finish(); |
| <a class="jxr_linenumber" name="L69" href="#L69">69</a> } |
| <a class="jxr_linenumber" name="L70" href="#L70">70</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.result; |
| <a class="jxr_linenumber" name="L71" href="#L71">71</a> } |
| <a class="jxr_linenumber" name="L72" href="#L72">72</a> |
| <a class="jxr_linenumber" name="L73" href="#L73">73</a> <strong class="jxr_keyword">public</strong> <a name="ChecksumAlgorithm" href="../../../../org/apache/archiva/checksum/ChecksumAlgorithm.html#ChecksumAlgorithm">ChecksumAlgorithm</a> getAlgorithm() |
| <a class="jxr_linenumber" name="L74" href="#L74">74</a> { |
| <a class="jxr_linenumber" name="L75" href="#L75">75</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.checksumAlgorithm; |
| <a class="jxr_linenumber" name="L76" href="#L76">76</a> } |
| <a class="jxr_linenumber" name="L77" href="#L77">77</a> |
| <a class="jxr_linenumber" name="L78" href="#L78">78</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> reset() |
| <a class="jxr_linenumber" name="L79" href="#L79">79</a> { |
| <a class="jxr_linenumber" name="L80" href="#L80">80</a> md.reset(); |
| <a class="jxr_linenumber" name="L81" href="#L81">81</a> <strong class="jxr_keyword">this</strong>.result = <strong class="jxr_keyword">new</strong> byte[0]; |
| <a class="jxr_linenumber" name="L82" href="#L82">82</a> } |
| <a class="jxr_linenumber" name="L83" href="#L83">83</a> |
| <a class="jxr_linenumber" name="L84" href="#L84">84</a> <strong class="jxr_keyword">public</strong> <a name="Checksum" href="../../../../org/apache/archiva/checksum/Checksum.html#Checksum">Checksum</a> update( byte[] buffer, <strong class="jxr_keyword">int</strong> offset, <strong class="jxr_keyword">int</strong> size ) |
| <a class="jxr_linenumber" name="L85" href="#L85">85</a> { |
| <a class="jxr_linenumber" name="L86" href="#L86">86</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.result.length!=0) { |
| <a class="jxr_linenumber" name="L87" href="#L87">87</a> reset(); |
| <a class="jxr_linenumber" name="L88" href="#L88">88</a> } |
| <a class="jxr_linenumber" name="L89" href="#L89">89</a> md.update( buffer, 0, size ); |
| <a class="jxr_linenumber" name="L90" href="#L90">90</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>; |
| <a class="jxr_linenumber" name="L91" href="#L91">91</a> } |
| <a class="jxr_linenumber" name="L92" href="#L92">92</a> |
| <a class="jxr_linenumber" name="L93" href="#L93">93</a> <strong class="jxr_keyword">public</strong> <a name="Checksum" href="../../../../org/apache/archiva/checksum/Checksum.html#Checksum">Checksum</a> update( ByteBuffer buffer) |
| <a class="jxr_linenumber" name="L94" href="#L94">94</a> { |
| <a class="jxr_linenumber" name="L95" href="#L95">95</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.result.length!=0) { |
| <a class="jxr_linenumber" name="L96" href="#L96">96</a> reset(); |
| <a class="jxr_linenumber" name="L97" href="#L97">97</a> } |
| <a class="jxr_linenumber" name="L98" href="#L98">98</a> md.update( buffer ); |
| <a class="jxr_linenumber" name="L99" href="#L99">99</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>; |
| <a class="jxr_linenumber" name="L100" href="#L100">100</a> } |
| <a class="jxr_linenumber" name="L101" href="#L101">101</a> |
| <a class="jxr_linenumber" name="L102" href="#L102">102</a> <strong class="jxr_keyword">public</strong> <a name="Checksum" href="../../../../org/apache/archiva/checksum/Checksum.html#Checksum">Checksum</a> finish() { |
| <a class="jxr_linenumber" name="L103" href="#L103">103</a> <strong class="jxr_keyword">this</strong>.result = md.digest(); |
| <a class="jxr_linenumber" name="L104" href="#L104">104</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>; |
| <a class="jxr_linenumber" name="L105" href="#L105">105</a> } |
| <a class="jxr_linenumber" name="L106" href="#L106">106</a> |
| <a class="jxr_linenumber" name="L107" href="#L107">107</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> compare(byte[] cmp) { |
| <a class="jxr_linenumber" name="L108" href="#L108">108</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.result == <strong class="jxr_keyword">null</strong> || <strong class="jxr_keyword">this</strong>.result.length==0) { |
| <a class="jxr_linenumber" name="L109" href="#L109">109</a> finish(); |
| <a class="jxr_linenumber" name="L110" href="#L110">110</a> } |
| <a class="jxr_linenumber" name="L111" href="#L111">111</a> <strong class="jxr_keyword">return</strong> md.isEqual( <strong class="jxr_keyword">this</strong>.result, cmp ); |
| <a class="jxr_linenumber" name="L112" href="#L112">112</a> } |
| <a class="jxr_linenumber" name="L113" href="#L113">113</a> |
| <a class="jxr_linenumber" name="L114" href="#L114">114</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> compare(String hexString) { |
| <a class="jxr_linenumber" name="L115" href="#L115">115</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.result == <strong class="jxr_keyword">null</strong> || <strong class="jxr_keyword">this</strong>.result.length==0) { |
| <a class="jxr_linenumber" name="L116" href="#L116">116</a> finish(); |
| <a class="jxr_linenumber" name="L117" href="#L117">117</a> } |
| <a class="jxr_linenumber" name="L118" href="#L118">118</a> <strong class="jxr_keyword">return</strong> md.isEqual(<strong class="jxr_keyword">this</strong>.result, Hex.decode( hexString )); |
| <a class="jxr_linenumber" name="L119" href="#L119">119</a> } |
| <a class="jxr_linenumber" name="L120" href="#L120">120</a> } |
| </pre> |
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