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<a class="jxr_linenumber" name="1" href="#1">1</a> <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em>
<a class="jxr_linenumber" name="3" href="#3">3</a> <em class="jxr_comment"> * contributor license agreements. See the NOTICE file distributed with</em>
<a class="jxr_linenumber" name="4" href="#4">4</a> <em class="jxr_comment"> * this work for additional information regarding copyright ownership.</em>
<a class="jxr_linenumber" name="5" href="#5">5</a> <em class="jxr_comment"> * The ASF licenses this file to You under the Apache license, Version 2.0</em>
<a class="jxr_linenumber" name="6" href="#6">6</a> <em class="jxr_comment"> * (the "License"); you may not use this file except in compliance with</em>
<a class="jxr_linenumber" name="7" href="#7">7</a> <em class="jxr_comment"> * the License. You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="8" href="#8">8</a> <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="9" href="#9">9</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="10" href="#10">10</a> <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="11" href="#11">11</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="12" href="#12">12</a> <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="13" href="#13">13</a> <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="14" href="#14">14</a> <em class="jxr_comment"> * See the license for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="15" href="#15">15</a> <em class="jxr_comment"> * limitations under the license.</em>
<a class="jxr_linenumber" name="16" href="#16">16</a> <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="17" href="#17">17</a> <strong class="jxr_keyword">package</strong> org.apache.logging.log4j.core.pattern;
<a class="jxr_linenumber" name="18" href="#18">18</a>
<a class="jxr_linenumber" name="19" href="#19">19</a> <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a class="jxr_linenumber" name="20" href="#20">20</a> <strong class="jxr_keyword">import</strong> java.util.List;
<a class="jxr_linenumber" name="21" href="#21">21</a>
<a class="jxr_linenumber" name="22" href="#22">22</a>
<a class="jxr_linenumber" name="23" href="#23">23</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="24" href="#24">24</a> <em class="jxr_javadoccomment"> * NameAbbreviator generates abbreviated logger and class names.</em>
<a class="jxr_linenumber" name="25" href="#25">25</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="26" href="#26">26</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NameAbbreviator</a> {
<a class="jxr_linenumber" name="27" href="#27">27</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="28" href="#28">28</a> <em class="jxr_javadoccomment"> * Default (no abbreviation) abbreviator.</em>
<a class="jxr_linenumber" name="29" href="#29">29</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="30" href="#30">30</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NameAbbreviator</a> DEFAULT = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NOPAbbreviator</a>();
<a class="jxr_linenumber" name="31" href="#31">31</a>
<a class="jxr_linenumber" name="32" href="#32">32</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="33" href="#33">33</a> <em class="jxr_javadoccomment"> * Gets an abbreviator.</em>
<a class="jxr_linenumber" name="34" href="#34">34</a> <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
<a class="jxr_linenumber" name="35" href="#35">35</a> <em class="jxr_javadoccomment"> * For example, "%logger{2}" will output only 2 elements of the logger name,</em>
<a class="jxr_linenumber" name="36" href="#36">36</a> <em class="jxr_javadoccomment"> * "%logger{1.}" will output only the first character of the non-final elements in the name,</em>
<a class="jxr_linenumber" name="37" href="#37">37</a> <em class="jxr_javadoccomment"> * "%logger(1~.2~} will output the first character of the first element, two characters of</em>
<a class="jxr_linenumber" name="38" href="#38">38</a> <em class="jxr_javadoccomment"> * the second and subsequent elements and will use a tilde to indicate abbreviated characters.</em>
<a class="jxr_linenumber" name="39" href="#39">39</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="40" href="#40">40</a> <em class="jxr_javadoccomment"> * @param pattern abbreviation pattern.</em>
<a class="jxr_linenumber" name="41" href="#41">41</a> <em class="jxr_javadoccomment"> * @return abbreviator, will not be null.</em>
<a class="jxr_linenumber" name="42" href="#42">42</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="43" href="#43">43</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NameAbbreviator</a> getAbbreviator(<strong class="jxr_keyword">final</strong> String pattern) {
<a class="jxr_linenumber" name="44" href="#44">44</a> <strong class="jxr_keyword">if</strong> (pattern.length() &gt; 0) {
<a class="jxr_linenumber" name="45" href="#45">45</a> <em class="jxr_comment">// if pattern is just spaces and numbers then</em>
<a class="jxr_linenumber" name="46" href="#46">46</a> <em class="jxr_comment">// use MaxElementAbbreviator</em>
<a class="jxr_linenumber" name="47" href="#47">47</a> String trimmed = pattern.trim();
<a class="jxr_linenumber" name="48" href="#48">48</a>
<a class="jxr_linenumber" name="49" href="#49">49</a> <strong class="jxr_keyword">if</strong> (trimmed.length() == 0) {
<a class="jxr_linenumber" name="50" href="#50">50</a> <strong class="jxr_keyword">return</strong> DEFAULT;
<a class="jxr_linenumber" name="51" href="#51">51</a> }
<a class="jxr_linenumber" name="52" href="#52">52</a>
<a class="jxr_linenumber" name="53" href="#53">53</a> <strong class="jxr_keyword">int</strong> i = 0;
<a class="jxr_linenumber" name="54" href="#54">54</a>
<a class="jxr_linenumber" name="55" href="#55">55</a> <strong class="jxr_keyword">while</strong> ((i &lt; trimmed.length()) &amp;&amp; (trimmed.charAt(i) &gt;= '0')
<a class="jxr_linenumber" name="56" href="#56">56</a> &amp;&amp; (trimmed.charAt(i) &lt;= '9')) {
<a class="jxr_linenumber" name="57" href="#57">57</a> i++;
<a class="jxr_linenumber" name="58" href="#58">58</a> }
<a class="jxr_linenumber" name="59" href="#59">59</a>
<a class="jxr_linenumber" name="60" href="#60">60</a> <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="61" href="#61">61</a> <em class="jxr_comment">// if all blanks and digits</em>
<a class="jxr_linenumber" name="62" href="#62">62</a> <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="63" href="#63">63</a> <strong class="jxr_keyword">if</strong> (i == trimmed.length()) {
<a class="jxr_linenumber" name="64" href="#64">64</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">MaxElementAbbreviator</a>(Integer.parseInt(trimmed));
<a class="jxr_linenumber" name="65" href="#65">65</a> }
<a class="jxr_linenumber" name="66" href="#66">66</a>
<a class="jxr_linenumber" name="67" href="#67">67</a> ArrayList&lt;PatternAbbreviatorFragment&gt; fragments = <strong class="jxr_keyword">new</strong> ArrayList&lt;PatternAbbreviatorFragment&gt;(5);
<a class="jxr_linenumber" name="68" href="#68">68</a> <strong class="jxr_keyword">char</strong> ellipsis;
<a class="jxr_linenumber" name="69" href="#69">69</a> <strong class="jxr_keyword">int</strong> charCount;
<a class="jxr_linenumber" name="70" href="#70">70</a> <strong class="jxr_keyword">int</strong> pos = 0;
<a class="jxr_linenumber" name="71" href="#71">71</a>
<a class="jxr_linenumber" name="72" href="#72">72</a> <strong class="jxr_keyword">while</strong> ((pos &lt; trimmed.length()) &amp;&amp; (pos &gt;= 0)) {
<a class="jxr_linenumber" name="73" href="#73">73</a> <strong class="jxr_keyword">int</strong> ellipsisPos = pos;
<a class="jxr_linenumber" name="74" href="#74">74</a>
<a class="jxr_linenumber" name="75" href="#75">75</a> <strong class="jxr_keyword">if</strong> (trimmed.charAt(pos) == '*') {
<a class="jxr_linenumber" name="76" href="#76">76</a> charCount = Integer.MAX_VALUE;
<a class="jxr_linenumber" name="77" href="#77">77</a> ellipsisPos++;
<a class="jxr_linenumber" name="78" href="#78">78</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="79" href="#79">79</a> <strong class="jxr_keyword">if</strong> ((trimmed.charAt(pos) &gt;= '0') &amp;&amp; (trimmed.charAt(pos) &lt;= '9')) {
<a class="jxr_linenumber" name="80" href="#80">80</a> charCount = trimmed.charAt(pos) - '0';
<a class="jxr_linenumber" name="81" href="#81">81</a> ellipsisPos++;
<a class="jxr_linenumber" name="82" href="#82">82</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="83" href="#83">83</a> charCount = 0;
<a class="jxr_linenumber" name="84" href="#84">84</a> }
<a class="jxr_linenumber" name="85" href="#85">85</a> }
<a class="jxr_linenumber" name="86" href="#86">86</a>
<a class="jxr_linenumber" name="87" href="#87">87</a> ellipsis = '\0';
<a class="jxr_linenumber" name="88" href="#88">88</a>
<a class="jxr_linenumber" name="89" href="#89">89</a> <strong class="jxr_keyword">if</strong> (ellipsisPos &lt; trimmed.length()) {
<a class="jxr_linenumber" name="90" href="#90">90</a> ellipsis = trimmed.charAt(ellipsisPos);
<a class="jxr_linenumber" name="91" href="#91">91</a>
<a class="jxr_linenumber" name="92" href="#92">92</a> <strong class="jxr_keyword">if</strong> (ellipsis == '.') {
<a class="jxr_linenumber" name="93" href="#93">93</a> ellipsis = '\0';
<a class="jxr_linenumber" name="94" href="#94">94</a> }
<a class="jxr_linenumber" name="95" href="#95">95</a> }
<a class="jxr_linenumber" name="96" href="#96">96</a>
<a class="jxr_linenumber" name="97" href="#97">97</a> fragments.add(<strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">PatternAbbreviatorFragment</a>(charCount, ellipsis));
<a class="jxr_linenumber" name="98" href="#98">98</a> pos = trimmed.indexOf(<span class="jxr_string">"."</span>, pos);
<a class="jxr_linenumber" name="99" href="#99">99</a>
<a class="jxr_linenumber" name="100" href="#100">100</a> <strong class="jxr_keyword">if</strong> (pos == -1) {
<a class="jxr_linenumber" name="101" href="#101">101</a> <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="102" href="#102">102</a> }
<a class="jxr_linenumber" name="103" href="#103">103</a>
<a class="jxr_linenumber" name="104" href="#104">104</a> pos++;
<a class="jxr_linenumber" name="105" href="#105">105</a> }
<a class="jxr_linenumber" name="106" href="#106">106</a>
<a class="jxr_linenumber" name="107" href="#107">107</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">PatternAbbreviator</a>(fragments);
<a class="jxr_linenumber" name="108" href="#108">108</a> }
<a class="jxr_linenumber" name="109" href="#109">109</a>
<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="111" href="#111">111</a> <em class="jxr_comment">// no matching abbreviation, return defaultAbbreviator</em>
<a class="jxr_linenumber" name="112" href="#112">112</a> <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="113" href="#113">113</a> <strong class="jxr_keyword">return</strong> DEFAULT;
<a class="jxr_linenumber" name="114" href="#114">114</a> }
<a class="jxr_linenumber" name="115" href="#115">115</a>
<a class="jxr_linenumber" name="116" href="#116">116</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment"> * Gets default abbreviator.</em>
<a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_javadoccomment"> * @return default abbreviator.</em>
<a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="121" href="#121">121</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NameAbbreviator</a> getDefaultAbbreviator() {
<a class="jxr_linenumber" name="122" href="#122">122</a> <strong class="jxr_keyword">return</strong> DEFAULT;
<a class="jxr_linenumber" name="123" href="#123">123</a> }
<a class="jxr_linenumber" name="124" href="#124">124</a>
<a class="jxr_linenumber" name="125" href="#125">125</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="126" href="#126">126</a> <em class="jxr_javadoccomment"> * Abbreviates a name in a String.</em>
<a class="jxr_linenumber" name="127" href="#127">127</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="128" href="#128">128</a> <em class="jxr_javadoccomment"> * @param buf buffer, may not be null.</em>
<a class="jxr_linenumber" name="129" href="#129">129</a> <em class="jxr_javadoccomment"> * @return The abbreviated String.</em>
<a class="jxr_linenumber" name="130" href="#130">130</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="131" href="#131">131</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> String abbreviate(<strong class="jxr_keyword">final</strong> String buf);
<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>
<a class="jxr_linenumber" name="134" href="#134">134</a> <em class="jxr_javadoccomment"> * Abbreviator that simply appends full name to buffer.</em>
<a class="jxr_linenumber" name="135" href="#135">135</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="136" href="#136">136</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NOPAbbreviator</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NameAbbreviator</a> {
<a class="jxr_linenumber" name="137" href="#137">137</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="138" href="#138">138</a> <em class="jxr_javadoccomment"> * Constructor.</em>
<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> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NOPAbbreviator</a>() {
<a class="jxr_linenumber" name="141" href="#141">141</a> }
<a class="jxr_linenumber" name="142" href="#142">142</a>
<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="144" href="#144">144</a> <em class="jxr_javadoccomment"> * {@inheritDoc}</em>
<a class="jxr_linenumber" name="145" href="#145">145</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="146" href="#146">146</a> <strong class="jxr_keyword">public</strong> String abbreviate(<strong class="jxr_keyword">final</strong> String buf) {
<a class="jxr_linenumber" name="147" href="#147">147</a> <strong class="jxr_keyword">return</strong> buf;
<a class="jxr_linenumber" name="148" href="#148">148</a> }
<a class="jxr_linenumber" name="149" href="#149">149</a> }
<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"> * Abbreviator that drops starting path elements.</em>
<a class="jxr_linenumber" name="153" href="#153">153</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="154" href="#154">154</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">MaxElementAbbreviator</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NameAbbreviator</a> {
<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> <em class="jxr_javadoccomment"> * Maximum number of path elements to output.</em>
<a class="jxr_linenumber" name="157" href="#157">157</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="158" href="#158">158</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> count;
<a class="jxr_linenumber" name="159" href="#159">159</a>
<a class="jxr_linenumber" name="160" href="#160">160</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="161" href="#161">161</a> <em class="jxr_javadoccomment"> * Create new instance.</em>
<a class="jxr_linenumber" name="162" href="#162">162</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="163" href="#163">163</a> <em class="jxr_javadoccomment"> * @param count maximum number of path elements to output.</em>
<a class="jxr_linenumber" name="164" href="#164">164</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="165" href="#165">165</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">MaxElementAbbreviator</a>(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> count) {
<a class="jxr_linenumber" name="166" href="#166">166</a> <strong class="jxr_keyword">this</strong>.count = count &lt; 1 ? 1 : count;
<a class="jxr_linenumber" name="167" href="#167">167</a> }
<a class="jxr_linenumber" name="168" href="#168">168</a>
<a class="jxr_linenumber" name="169" href="#169">169</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="170" href="#170">170</a> <em class="jxr_javadoccomment"> * Abbreviate name.</em>
<a class="jxr_linenumber" name="171" href="#171">171</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="172" href="#172">172</a> <em class="jxr_javadoccomment"> * @param buf The String to abbreviate.</em>
<a class="jxr_linenumber" name="173" href="#173">173</a> <em class="jxr_javadoccomment"> * @return the abbreviated String.</em>
<a class="jxr_linenumber" name="174" href="#174">174</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="175" href="#175">175</a> <strong class="jxr_keyword">public</strong> String abbreviate(<strong class="jxr_keyword">final</strong> String buf) {
<a class="jxr_linenumber" name="176" href="#176">176</a>
<a class="jxr_linenumber" name="177" href="#177">177</a> <em class="jxr_comment">// We substract 1 from 'len' when assigning to 'end' to avoid out of</em>
<a class="jxr_linenumber" name="178" href="#178">178</a> <em class="jxr_comment">// bounds exception in return r.substring(end+1, len). This can happen if</em>
<a class="jxr_linenumber" name="179" href="#179">179</a> <em class="jxr_comment">// precision is 1 and the category name ends with a dot.</em>
<a class="jxr_linenumber" name="180" href="#180">180</a> <strong class="jxr_keyword">int</strong> end = buf.length() - 1;
<a class="jxr_linenumber" name="181" href="#181">181</a>
<a class="jxr_linenumber" name="182" href="#182">182</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = count; i &gt; 0; i--) {
<a class="jxr_linenumber" name="183" href="#183">183</a> end = buf.lastIndexOf(<span class="jxr_string">"."</span>, end - 1);
<a class="jxr_linenumber" name="184" href="#184">184</a> <strong class="jxr_keyword">if</strong> (end == -1) {
<a class="jxr_linenumber" name="185" href="#185">185</a> <strong class="jxr_keyword">return</strong> buf;
<a class="jxr_linenumber" name="186" href="#186">186</a> }
<a class="jxr_linenumber" name="187" href="#187">187</a> }
<a class="jxr_linenumber" name="188" href="#188">188</a>
<a class="jxr_linenumber" name="189" href="#189">189</a> <strong class="jxr_keyword">return</strong> buf.substring(end + 1);
<a class="jxr_linenumber" name="190" href="#190">190</a> }
<a class="jxr_linenumber" name="191" href="#191">191</a> }
<a class="jxr_linenumber" name="192" href="#192">192</a>
<a class="jxr_linenumber" name="193" href="#193">193</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="194" href="#194">194</a> <em class="jxr_javadoccomment"> * Fragment of an pattern abbreviator.</em>
<a class="jxr_linenumber" name="195" href="#195">195</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="196" href="#196">196</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">PatternAbbreviatorFragment</a> {
<a class="jxr_linenumber" name="197" href="#197">197</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="198" href="#198">198</a> <em class="jxr_javadoccomment"> * Count of initial characters of element to output.</em>
<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> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> charCount;
<a class="jxr_linenumber" name="201" href="#201">201</a>
<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> <em class="jxr_javadoccomment"> * Character used to represent dropped characters.</em>
<a class="jxr_linenumber" name="204" href="#204">204</a> <em class="jxr_javadoccomment"> * '\0' indicates no representation of dropped characters.</em>
<a class="jxr_linenumber" name="205" href="#205">205</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="206" href="#206">206</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">char</strong> ellipsis;
<a class="jxr_linenumber" name="207" href="#207">207</a>
<a class="jxr_linenumber" name="208" href="#208">208</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="209" href="#209">209</a> <em class="jxr_javadoccomment"> * Creates a PatternAbbreviatorFragment.</em>
<a class="jxr_linenumber" name="210" href="#210">210</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="211" href="#211">211</a> <em class="jxr_javadoccomment"> * @param charCount number of initial characters to preserve.</em>
<a class="jxr_linenumber" name="212" href="#212">212</a> <em class="jxr_javadoccomment"> * @param ellipsis character to represent elimination of characters,</em>
<a class="jxr_linenumber" name="213" href="#213">213</a> <em class="jxr_javadoccomment"> * '\0' if no ellipsis is desired.</em>
<a class="jxr_linenumber" name="214" href="#214">214</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="215" href="#215">215</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">PatternAbbreviatorFragment</a>(
<a class="jxr_linenumber" name="216" href="#216">216</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> charCount, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">char</strong> ellipsis) {
<a class="jxr_linenumber" name="217" href="#217">217</a> <strong class="jxr_keyword">this</strong>.charCount = charCount;
<a class="jxr_linenumber" name="218" href="#218">218</a> <strong class="jxr_keyword">this</strong>.ellipsis = ellipsis;
<a class="jxr_linenumber" name="219" href="#219">219</a> }
<a class="jxr_linenumber" name="220" href="#220">220</a>
<a class="jxr_linenumber" name="221" href="#221">221</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="222" href="#222">222</a> <em class="jxr_javadoccomment"> * Abbreviate element of name.</em>
<a class="jxr_linenumber" name="223" href="#223">223</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="224" href="#224">224</a> <em class="jxr_javadoccomment"> * @param buf buffer to receive element.</em>
<a class="jxr_linenumber" name="225" href="#225">225</a> <em class="jxr_javadoccomment"> * @param startPos starting index of name element.</em>
<a class="jxr_linenumber" name="226" href="#226">226</a> <em class="jxr_javadoccomment"> * @return starting index of next element.</em>
<a class="jxr_linenumber" name="227" href="#227">227</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="228" href="#228">228</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> abbreviate(<strong class="jxr_keyword">final</strong> StringBuilder buf, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> startPos) {
<a class="jxr_linenumber" name="229" href="#229">229</a> <strong class="jxr_keyword">int</strong> nextDot = buf.toString().indexOf(<span class="jxr_string">"."</span>, startPos);
<a class="jxr_linenumber" name="230" href="#230">230</a>
<a class="jxr_linenumber" name="231" href="#231">231</a> <strong class="jxr_keyword">if</strong> (nextDot != -1) {
<a class="jxr_linenumber" name="232" href="#232">232</a> <strong class="jxr_keyword">if</strong> ((nextDot - startPos) &gt; charCount) {
<a class="jxr_linenumber" name="233" href="#233">233</a> buf.delete(startPos + charCount, nextDot);
<a class="jxr_linenumber" name="234" href="#234">234</a> nextDot = startPos + charCount;
<a class="jxr_linenumber" name="235" href="#235">235</a>
<a class="jxr_linenumber" name="236" href="#236">236</a> <strong class="jxr_keyword">if</strong> (ellipsis != '\0') {
<a class="jxr_linenumber" name="237" href="#237">237</a> buf.insert(nextDot, ellipsis);
<a class="jxr_linenumber" name="238" href="#238">238</a> nextDot++;
<a class="jxr_linenumber" name="239" href="#239">239</a> }
<a class="jxr_linenumber" name="240" href="#240">240</a> }
<a class="jxr_linenumber" name="241" href="#241">241</a>
<a class="jxr_linenumber" name="242" href="#242">242</a> nextDot++;
<a class="jxr_linenumber" name="243" href="#243">243</a> }
<a class="jxr_linenumber" name="244" href="#244">244</a>
<a class="jxr_linenumber" name="245" href="#245">245</a> <strong class="jxr_keyword">return</strong> nextDot;
<a class="jxr_linenumber" name="246" href="#246">246</a> }
<a class="jxr_linenumber" name="247" href="#247">247</a> }
<a class="jxr_linenumber" name="248" href="#248">248</a>
<a class="jxr_linenumber" name="249" href="#249">249</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="250" href="#250">250</a> <em class="jxr_javadoccomment"> * Pattern abbreviator.</em>
<a class="jxr_linenumber" name="251" href="#251">251</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="252" href="#252">252</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">PatternAbbreviator</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">NameAbbreviator</a> {
<a class="jxr_linenumber" name="253" href="#253">253</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="254" href="#254">254</a> <em class="jxr_javadoccomment"> * Element abbreviation patterns.</em>
<a class="jxr_linenumber" name="255" href="#255">255</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="256" href="#256">256</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">PatternAbbreviatorFragment</a>[] fragments;
<a class="jxr_linenumber" name="257" href="#257">257</a>
<a class="jxr_linenumber" name="258" href="#258">258</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="259" href="#259">259</a> <em class="jxr_javadoccomment"> * Create PatternAbbreviator.</em>
<a class="jxr_linenumber" name="260" href="#260">260</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="261" href="#261">261</a> <em class="jxr_javadoccomment"> * @param fragments element abbreviation patterns.</em>
<a class="jxr_linenumber" name="262" href="#262">262</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="263" href="#263">263</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">PatternAbbreviator</a>(List fragments) {
<a class="jxr_linenumber" name="264" href="#264">264</a> <strong class="jxr_keyword">if</strong> (fragments.size() == 0) {
<a class="jxr_linenumber" name="265" href="#265">265</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(
<a class="jxr_linenumber" name="266" href="#266">266</a> <span class="jxr_string">"fragments must have at least one element"</span>);
<a class="jxr_linenumber" name="267" href="#267">267</a> }
<a class="jxr_linenumber" name="268" href="#268">268</a>
<a class="jxr_linenumber" name="269" href="#269">269</a> <strong class="jxr_keyword">this</strong>.fragments = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">PatternAbbreviatorFragment</a>[fragments.size()];
<a class="jxr_linenumber" name="270" href="#270">270</a> fragments.toArray(<strong class="jxr_keyword">this</strong>.fragments);
<a class="jxr_linenumber" name="271" href="#271">271</a> }
<a class="jxr_linenumber" name="272" href="#272">272</a>
<a class="jxr_linenumber" name="273" href="#273">273</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="274" href="#274">274</a> <em class="jxr_javadoccomment"> * Abbreviate name.</em>
<a class="jxr_linenumber" name="275" href="#275">275</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="276" href="#276">276</a> <em class="jxr_javadoccomment"> * @param buf buffer that abbreviated name is appended.</em>
<a class="jxr_linenumber" name="277" href="#277">277</a> <em class="jxr_javadoccomment"> * @param nameStart start of name.</em>
<a class="jxr_linenumber" name="278" href="#278">278</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="279" href="#279">279</a> <strong class="jxr_keyword">public</strong> String abbreviate(<strong class="jxr_keyword">final</strong> String buf) {
<a class="jxr_linenumber" name="280" href="#280">280</a> <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="281" href="#281">281</a> <em class="jxr_comment">// all non-terminal patterns are executed once</em>
<a class="jxr_linenumber" name="282" href="#282">282</a> <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="283" href="#283">283</a> <strong class="jxr_keyword">int</strong> pos = 0;
<a class="jxr_linenumber" name="284" href="#284">284</a> StringBuilder sb = <strong class="jxr_keyword">new</strong> StringBuilder(buf);
<a class="jxr_linenumber" name="285" href="#285">285</a>
<a class="jxr_linenumber" name="286" href="#286">286</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; (i &lt; (fragments.length - 1)) &amp;&amp; (pos &lt; buf.length());
<a class="jxr_linenumber" name="287" href="#287">287</a> i++) {
<a class="jxr_linenumber" name="288" href="#288">288</a> pos = fragments[i].abbreviate(sb, pos);
<a class="jxr_linenumber" name="289" href="#289">289</a> }
<a class="jxr_linenumber" name="290" href="#290">290</a>
<a class="jxr_linenumber" name="291" href="#291">291</a> <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="292" href="#292">292</a> <em class="jxr_comment">// last pattern in executed repeatedly</em>
<a class="jxr_linenumber" name="293" href="#293">293</a> <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="294" href="#294">294</a> <a href="../../../../../../org/apache/logging/log4j/core/pattern/NameAbbreviator.html">PatternAbbreviatorFragment</a> terminalFragment = fragments[fragments.length - 1];
<a class="jxr_linenumber" name="295" href="#295">295</a>
<a class="jxr_linenumber" name="296" href="#296">296</a> <strong class="jxr_keyword">while</strong> ((pos &lt; buf.length()) &amp;&amp; (pos &gt;= 0)) {
<a class="jxr_linenumber" name="297" href="#297">297</a> pos = terminalFragment.abbreviate(sb, pos);
<a class="jxr_linenumber" name="298" href="#298">298</a> }
<a class="jxr_linenumber" name="299" href="#299">299</a> <strong class="jxr_keyword">return</strong> sb.toString();
<a class="jxr_linenumber" name="300" href="#300">300</a> }
<a class="jxr_linenumber" name="301" href="#301">301</a> }
<a class="jxr_linenumber" name="302" href="#302">302</a> }
</pre>
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