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apache / logging-log4j-site / 9755b12b39efbc0142688f9b1a11ec68db89f97b / . / 2.13.3 / log4j-core / xref / org / apache / logging / log4j / core / pattern / ThrowablePatternConverter.html
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<div id="overview"><a href="../../../../../../../apidocs/org/apache/logging/log4j/core/pattern/ThrowablePatternConverter.html">View Javadoc</a></div><pre>
<a class="jxr_linenumber" name="L1" href="#L1">1</a> <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="L2" href="#L2">2</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em>
<a class="jxr_linenumber" name="L3" href="#L3">3</a> <em class="jxr_comment"> * contributor license agreements. See the NOTICE file distributed with</em>
<a class="jxr_linenumber" name="L4" href="#L4">4</a> <em class="jxr_comment"> * this work for additional information regarding copyright ownership.</em>
<a class="jxr_linenumber" name="L5" href="#L5">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="L6" href="#L6">6</a> <em class="jxr_comment"> * (the "License"); you may not use this file except in compliance with</em>
<a class="jxr_linenumber" name="L7" href="#L7">7</a> <em class="jxr_comment"> * the License. You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="L8" href="#L8">8</a> <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="L9" href="#L9">9</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2." target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.</a>0</em>
<a class="jxr_linenumber" name="L10" href="#L10">10</a> <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="L11" href="#L11">11</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="L12" href="#L12">12</a> <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="L13" href="#L13">13</a> <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="L14" href="#L14">14</a> <em class="jxr_comment"> * See the license for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="L15" href="#L15">15</a> <em class="jxr_comment"> * limitations under the license.</em>
<a class="jxr_linenumber" name="L16" href="#L16">16</a> <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="L17" href="#L17">17</a> <strong class="jxr_keyword">package</strong> org.apache.logging.log4j.core.pattern;
<a class="jxr_linenumber" name="L18" href="#L18">18</a>
<a class="jxr_linenumber" name="L19" href="#L19">19</a> <strong class="jxr_keyword">import</strong> java.io.PrintWriter;
<a class="jxr_linenumber" name="L20" href="#L20">20</a> <strong class="jxr_keyword">import</strong> java.io.StringWriter;
<a class="jxr_linenumber" name="L21" href="#L21">21</a> <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a class="jxr_linenumber" name="L22" href="#L22">22</a> <strong class="jxr_keyword">import</strong> java.util.Collections;
<a class="jxr_linenumber" name="L23" href="#L23">23</a> <strong class="jxr_keyword">import</strong> java.util.List;
<a class="jxr_linenumber" name="L24" href="#L24">24</a>
<a class="jxr_linenumber" name="L25" href="#L25">25</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.core.LogEvent;
<a class="jxr_linenumber" name="L26" href="#L26">26</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.core.config.Configuration;
<a class="jxr_linenumber" name="L27" href="#L27">27</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.core.config.plugins.Plugin;
<a class="jxr_linenumber" name="L28" href="#L28">28</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.core.impl.ThrowableFormatOptions;
<a class="jxr_linenumber" name="L29" href="#L29">29</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.core.layout.PatternLayout;
<a class="jxr_linenumber" name="L30" href="#L30">30</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.core.util.StringBuilderWriter;
<a class="jxr_linenumber" name="L31" href="#L31">31</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.util.Strings;
<a class="jxr_linenumber" name="L32" href="#L32">32</a>
<a class="jxr_linenumber" name="L33" href="#L33">33</a>
<a class="jxr_linenumber" name="L34" href="#L34">34</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L35" href="#L35">35</a> <em class="jxr_javadoccomment"> * Outputs the Throwable portion of the LoggingEvent as a full stack trace</em>
<a class="jxr_linenumber" name="L36" href="#L36">36</a> <em class="jxr_javadoccomment"> * unless this converter's option is 'short', where it just outputs the first line of the trace, or if</em>
<a class="jxr_linenumber" name="L37" href="#L37">37</a> <em class="jxr_javadoccomment"> * the number of lines to print is explicitly specified.</em>
<a class="jxr_linenumber" name="L38" href="#L38">38</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L39" href="#L39">39</a> @Plugin(name = <span class="jxr_string">"ThrowablePatternConverter"</span>, category = PatternConverter.CATEGORY)
<a class="jxr_linenumber" name="L40" href="#L40">40</a> @ConverterKeys({ <span class="jxr_string">"ex"</span>, <span class="jxr_string">"throwable"</span>, <span class="jxr_string">"exception"</span> })
<a class="jxr_linenumber" name="L41" href="#L41">41</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/ThrowablePatternConverter.html">ThrowablePatternConverter</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/LogEventPatternConverter.html">LogEventPatternConverter</a> {
<a class="jxr_linenumber" name="L42" href="#L42">42</a>
<a class="jxr_linenumber" name="L43" href="#L43">43</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L44" href="#L44">44</a> <em class="jxr_javadoccomment"> * Lists {@link PatternFormatter}s for the suffix attribute.</em>
<a class="jxr_linenumber" name="L45" href="#L45">45</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L46" href="#L46">46</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">final</strong> List&lt;PatternFormatter&gt; formatters;
<a class="jxr_linenumber" name="L47" href="#L47">47</a> <strong class="jxr_keyword">private</strong> String rawOption;
<a class="jxr_linenumber" name="L48" href="#L48">48</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> subShortOption;
<a class="jxr_linenumber" name="L49" href="#L49">49</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> nonStandardLineSeparator;
<a class="jxr_linenumber" name="L50" href="#L50">50</a>
<a class="jxr_linenumber" name="L51" href="#L51">51</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L52" href="#L52">52</a> <em class="jxr_javadoccomment"> * Options.</em>
<a class="jxr_linenumber" name="L53" href="#L53">53</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L54" href="#L54">54</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/logging/log4j/core/impl/ThrowableFormatOptions.html">ThrowableFormatOptions</a> options;
<a class="jxr_linenumber" name="L55" href="#L55">55</a>
<a class="jxr_linenumber" name="L56" href="#L56">56</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L57" href="#L57">57</a> <em class="jxr_javadoccomment"> * Constructor.</em>
<a class="jxr_linenumber" name="L58" href="#L58">58</a> <em class="jxr_javadoccomment"> * @param name Name of converter.</em>
<a class="jxr_linenumber" name="L59" href="#L59">59</a> <em class="jxr_javadoccomment"> * @param style CSS style for output.</em>
<a class="jxr_linenumber" name="L60" href="#L60">60</a> <em class="jxr_javadoccomment"> * @param options options, may be null.</em>
<a class="jxr_linenumber" name="L61" href="#L61">61</a> <em class="jxr_javadoccomment"> * @deprecated Use ThrowablePatternConverter(String name, String stule, String[] options, Configuration config)</em>
<a class="jxr_linenumber" name="L62" href="#L62">62</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L63" href="#L63">63</a> @Deprecated
<a class="jxr_linenumber" name="L64" href="#L64">64</a> <strong class="jxr_keyword">protected</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/ThrowablePatternConverter.html">ThrowablePatternConverter</a>(<strong class="jxr_keyword">final</strong> String name, <strong class="jxr_keyword">final</strong> String style, <strong class="jxr_keyword">final</strong> String[] options) {
<a class="jxr_linenumber" name="L65" href="#L65">65</a> <strong class="jxr_keyword">this</strong>(name, style, options, <strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="L66" href="#L66">66</a> }
<a class="jxr_linenumber" name="L67" href="#L67">67</a>
<a class="jxr_linenumber" name="L68" href="#L68">68</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L69" href="#L69">69</a> <em class="jxr_javadoccomment"> * Constructor.</em>
<a class="jxr_linenumber" name="L70" href="#L70">70</a> <em class="jxr_javadoccomment"> * @param name Name of converter.</em>
<a class="jxr_linenumber" name="L71" href="#L71">71</a> <em class="jxr_javadoccomment"> * @param style CSS style for output.</em>
<a class="jxr_linenumber" name="L72" href="#L72">72</a> <em class="jxr_javadoccomment"> * @param options options, may be null.</em>
<a class="jxr_linenumber" name="L73" href="#L73">73</a> <em class="jxr_javadoccomment"> * @param config</em>
<a class="jxr_linenumber" name="L74" href="#L74">74</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L75" href="#L75">75</a> <strong class="jxr_keyword">protected</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/ThrowablePatternConverter.html">ThrowablePatternConverter</a>(<strong class="jxr_keyword">final</strong> String name, <strong class="jxr_keyword">final</strong> String style, <strong class="jxr_keyword">final</strong> String[] options, <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/logging/log4j/core/config/Configuration.html">Configuration</a> config) {
<a class="jxr_linenumber" name="L76" href="#L76">76</a> <strong class="jxr_keyword">super</strong>(name, style);
<a class="jxr_linenumber" name="L77" href="#L77">77</a> <strong class="jxr_keyword">this</strong>.options = ThrowableFormatOptions.newInstance(options);
<a class="jxr_linenumber" name="L78" href="#L78">78</a> <strong class="jxr_keyword">if</strong> (options != <strong class="jxr_keyword">null</strong> &amp;&amp; options.length &gt; 0) {
<a class="jxr_linenumber" name="L79" href="#L79">79</a> rawOption = options[0];
<a class="jxr_linenumber" name="L80" href="#L80">80</a> }
<a class="jxr_linenumber" name="L81" href="#L81">81</a> <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.options.getSuffix() != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L82" href="#L82">82</a> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/PatternParser.html">PatternParser</a> parser = PatternLayout.createPatternParser(config);
<a class="jxr_linenumber" name="L83" href="#L83">83</a> <strong class="jxr_keyword">final</strong> List&lt;PatternFormatter&gt; parsedSuffixFormatters = parser.parse(<strong class="jxr_keyword">this</strong>.options.getSuffix());
<a class="jxr_linenumber" name="L84" href="#L84">84</a> <em class="jxr_comment">// filter out nested formatters that will handle throwable</em>
<a class="jxr_linenumber" name="L85" href="#L85">85</a> <strong class="jxr_keyword">boolean</strong> hasThrowableSuffixFormatter = false;
<a class="jxr_linenumber" name="L86" href="#L86">86</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> PatternFormatter suffixFormatter : parsedSuffixFormatters) {
<a class="jxr_linenumber" name="L87" href="#L87">87</a> <strong class="jxr_keyword">if</strong> (suffixFormatter.handlesThrowable()) {
<a class="jxr_linenumber" name="L88" href="#L88">88</a> hasThrowableSuffixFormatter = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="L89" href="#L89">89</a> }
<a class="jxr_linenumber" name="L90" href="#L90">90</a> }
<a class="jxr_linenumber" name="L91" href="#L91">91</a> <strong class="jxr_keyword">if</strong> (!hasThrowableSuffixFormatter) {
<a class="jxr_linenumber" name="L92" href="#L92">92</a> <strong class="jxr_keyword">this</strong>.formatters = parsedSuffixFormatters;
<a class="jxr_linenumber" name="L93" href="#L93">93</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="L94" href="#L94">94</a> <strong class="jxr_keyword">final</strong> List&lt;PatternFormatter&gt; suffixFormatters = <strong class="jxr_keyword">new</strong> ArrayList&lt;&gt;();
<a class="jxr_linenumber" name="L95" href="#L95">95</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> PatternFormatter suffixFormatter : parsedSuffixFormatters) {
<a class="jxr_linenumber" name="L96" href="#L96">96</a> <strong class="jxr_keyword">if</strong> (!suffixFormatter.handlesThrowable()) {
<a class="jxr_linenumber" name="L97" href="#L97">97</a> suffixFormatters.add(suffixFormatter);
<a class="jxr_linenumber" name="L98" href="#L98">98</a> }
<a class="jxr_linenumber" name="L99" href="#L99">99</a> }
<a class="jxr_linenumber" name="L100" href="#L100">100</a> <strong class="jxr_keyword">this</strong>.formatters = suffixFormatters;
<a class="jxr_linenumber" name="L101" href="#L101">101</a> }
<a class="jxr_linenumber" name="L102" href="#L102">102</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="L103" href="#L103">103</a> <strong class="jxr_keyword">this</strong>.formatters = Collections.emptyList();
<a class="jxr_linenumber" name="L104" href="#L104">104</a> }
<a class="jxr_linenumber" name="L105" href="#L105">105</a> subShortOption = ThrowableFormatOptions.MESSAGE.equalsIgnoreCase(rawOption) ||
<a class="jxr_linenumber" name="L106" href="#L106">106</a> ThrowableFormatOptions.LOCALIZED_MESSAGE.equalsIgnoreCase(rawOption) ||
<a class="jxr_linenumber" name="L107" href="#L107">107</a> ThrowableFormatOptions.FILE_NAME.equalsIgnoreCase(rawOption) ||
<a class="jxr_linenumber" name="L108" href="#L108">108</a> ThrowableFormatOptions.LINE_NUMBER.equalsIgnoreCase(rawOption) ||
<a class="jxr_linenumber" name="L109" href="#L109">109</a> ThrowableFormatOptions.METHOD_NAME.equalsIgnoreCase(rawOption) ||
<a class="jxr_linenumber" name="L110" href="#L110">110</a> ThrowableFormatOptions.CLASS_NAME.equalsIgnoreCase(rawOption);
<a class="jxr_linenumber" name="L111" href="#L111">111</a> nonStandardLineSeparator = !Strings.LINE_SEPARATOR.equals(<strong class="jxr_keyword">this</strong>.options.getSeparator());
<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> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L115" href="#L115">115</a> <em class="jxr_javadoccomment"> * Gets an instance of the class.</em>
<a class="jxr_linenumber" name="L116" href="#L116">116</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="L117" href="#L117">117</a> <em class="jxr_javadoccomment"> * @param config</em>
<a class="jxr_linenumber" name="L118" href="#L118">118</a> <em class="jxr_javadoccomment"> * @param options pattern options, may be null. If first element is "short",</em>
<a class="jxr_linenumber" name="L119" href="#L119">119</a> <em class="jxr_javadoccomment"> * only the first line of the throwable will be formatted.</em>
<a class="jxr_linenumber" name="L120" href="#L120">120</a> <em class="jxr_javadoccomment"> * @return instance of class.</em>
<a class="jxr_linenumber" name="L121" href="#L121">121</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L122" href="#L122">122</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/ThrowablePatternConverter.html">ThrowablePatternConverter</a> newInstance(<strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/logging/log4j/core/config/Configuration.html">Configuration</a> config, <strong class="jxr_keyword">final</strong> String[] options) {
<a class="jxr_linenumber" name="L123" href="#L123">123</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/logging/log4j/core/pattern/ThrowablePatternConverter.html">ThrowablePatternConverter</a>(<span class="jxr_string">"Throwable"</span>, <span class="jxr_string">"throwable"</span>, options, config);
<a class="jxr_linenumber" name="L124" href="#L124">124</a> }
<a class="jxr_linenumber" name="L125" href="#L125">125</a>
<a class="jxr_linenumber" name="L126" href="#L126">126</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L127" href="#L127">127</a> <em class="jxr_javadoccomment"> * {@inheritDoc}</em>
<a class="jxr_linenumber" name="L128" href="#L128">128</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L129" href="#L129">129</a> @Override
<a class="jxr_linenumber" name="L130" href="#L130">130</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> format(<strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/logging/log4j/core/LogEvent.html">LogEvent</a> event, <strong class="jxr_keyword">final</strong> StringBuilder buffer) {
<a class="jxr_linenumber" name="L131" href="#L131">131</a> <strong class="jxr_keyword">final</strong> Throwable t = event.getThrown();
<a class="jxr_linenumber" name="L132" href="#L132">132</a>
<a class="jxr_linenumber" name="L133" href="#L133">133</a> <strong class="jxr_keyword">if</strong> (subShortOption) {
<a class="jxr_linenumber" name="L134" href="#L134">134</a> formatSubShortOption(t, getSuffix(event), buffer);
<a class="jxr_linenumber" name="L135" href="#L135">135</a> }
<a class="jxr_linenumber" name="L136" href="#L136">136</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (t != <strong class="jxr_keyword">null</strong> &amp;&amp; options.anyLines()) {
<a class="jxr_linenumber" name="L137" href="#L137">137</a> formatOption(t, getSuffix(event), buffer);
<a class="jxr_linenumber" name="L138" href="#L138">138</a> }
<a class="jxr_linenumber" name="L139" href="#L139">139</a> }
<a class="jxr_linenumber" name="L140" href="#L140">140</a>
<a class="jxr_linenumber" name="L141" href="#L141">141</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> formatSubShortOption(<strong class="jxr_keyword">final</strong> Throwable t, <strong class="jxr_keyword">final</strong> String suffix, <strong class="jxr_keyword">final</strong> StringBuilder buffer) {
<a class="jxr_linenumber" name="L142" href="#L142">142</a> StackTraceElement[] trace;
<a class="jxr_linenumber" name="L143" href="#L143">143</a> StackTraceElement throwingMethod = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="L144" href="#L144">144</a> <strong class="jxr_keyword">int</strong> len;
<a class="jxr_linenumber" name="L145" href="#L145">145</a>
<a class="jxr_linenumber" name="L146" href="#L146">146</a> <strong class="jxr_keyword">if</strong> (t != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L147" href="#L147">147</a> trace = t.getStackTrace();
<a class="jxr_linenumber" name="L148" href="#L148">148</a> <strong class="jxr_keyword">if</strong> (trace !=<strong class="jxr_keyword">null</strong> &amp;&amp; trace.length &gt; 0) {
<a class="jxr_linenumber" name="L149" href="#L149">149</a> throwingMethod = trace[0];
<a class="jxr_linenumber" name="L150" href="#L150">150</a> }
<a class="jxr_linenumber" name="L151" href="#L151">151</a> }
<a class="jxr_linenumber" name="L152" href="#L152">152</a>
<a class="jxr_linenumber" name="L153" href="#L153">153</a> <strong class="jxr_keyword">if</strong> (t != <strong class="jxr_keyword">null</strong> &amp;&amp; throwingMethod != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L154" href="#L154">154</a> String toAppend = Strings.EMPTY;
<a class="jxr_linenumber" name="L155" href="#L155">155</a>
<a class="jxr_linenumber" name="L156" href="#L156">156</a> <strong class="jxr_keyword">if</strong> (ThrowableFormatOptions.CLASS_NAME.equalsIgnoreCase(rawOption)) {
<a class="jxr_linenumber" name="L157" href="#L157">157</a> toAppend = throwingMethod.getClassName();
<a class="jxr_linenumber" name="L158" href="#L158">158</a> }
<a class="jxr_linenumber" name="L159" href="#L159">159</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (ThrowableFormatOptions.METHOD_NAME.equalsIgnoreCase(rawOption)) {
<a class="jxr_linenumber" name="L160" href="#L160">160</a> toAppend = throwingMethod.getMethodName();
<a class="jxr_linenumber" name="L161" href="#L161">161</a> }
<a class="jxr_linenumber" name="L162" href="#L162">162</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (ThrowableFormatOptions.LINE_NUMBER.equalsIgnoreCase(rawOption)) {
<a class="jxr_linenumber" name="L163" href="#L163">163</a> toAppend = String.valueOf(throwingMethod.getLineNumber());
<a class="jxr_linenumber" name="L164" href="#L164">164</a> }
<a class="jxr_linenumber" name="L165" href="#L165">165</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (ThrowableFormatOptions.MESSAGE.equalsIgnoreCase(rawOption)) {
<a class="jxr_linenumber" name="L166" href="#L166">166</a> toAppend = t.getMessage();
<a class="jxr_linenumber" name="L167" href="#L167">167</a> }
<a class="jxr_linenumber" name="L168" href="#L168">168</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (ThrowableFormatOptions.LOCALIZED_MESSAGE.equalsIgnoreCase(rawOption)) {
<a class="jxr_linenumber" name="L169" href="#L169">169</a> toAppend = t.getLocalizedMessage();
<a class="jxr_linenumber" name="L170" href="#L170">170</a> }
<a class="jxr_linenumber" name="L171" href="#L171">171</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (ThrowableFormatOptions.FILE_NAME.equalsIgnoreCase(rawOption)) {
<a class="jxr_linenumber" name="L172" href="#L172">172</a> toAppend = throwingMethod.getFileName();
<a class="jxr_linenumber" name="L173" href="#L173">173</a> }
<a class="jxr_linenumber" name="L174" href="#L174">174</a>
<a class="jxr_linenumber" name="L175" href="#L175">175</a> len = buffer.length();
<a class="jxr_linenumber" name="L176" href="#L176">176</a> <strong class="jxr_keyword">if</strong> (len &gt; 0 &amp;&amp; !Character.isWhitespace(buffer.charAt(len - 1))) {
<a class="jxr_linenumber" name="L177" href="#L177">177</a> buffer.append(' ');
<a class="jxr_linenumber" name="L178" href="#L178">178</a> }
<a class="jxr_linenumber" name="L179" href="#L179">179</a> buffer.append(toAppend);
<a class="jxr_linenumber" name="L180" href="#L180">180</a>
<a class="jxr_linenumber" name="L181" href="#L181">181</a> <strong class="jxr_keyword">if</strong> (Strings.isNotBlank(suffix)) {
<a class="jxr_linenumber" name="L182" href="#L182">182</a> buffer.append(' ');
<a class="jxr_linenumber" name="L183" href="#L183">183</a> buffer.append(suffix);
<a class="jxr_linenumber" name="L184" href="#L184">184</a> }
<a class="jxr_linenumber" name="L185" href="#L185">185</a> }
<a class="jxr_linenumber" name="L186" href="#L186">186</a> }
<a class="jxr_linenumber" name="L187" href="#L187">187</a>
<a class="jxr_linenumber" name="L188" href="#L188">188</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> formatOption(<strong class="jxr_keyword">final</strong> Throwable throwable, <strong class="jxr_keyword">final</strong> String suffix, <strong class="jxr_keyword">final</strong> StringBuilder buffer) {
<a class="jxr_linenumber" name="L189" href="#L189">189</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> len = buffer.length();
<a class="jxr_linenumber" name="L190" href="#L190">190</a> <strong class="jxr_keyword">if</strong> (len &gt; 0 &amp;&amp; !Character.isWhitespace(buffer.charAt(len - 1))) {
<a class="jxr_linenumber" name="L191" href="#L191">191</a> buffer.append(' ');
<a class="jxr_linenumber" name="L192" href="#L192">192</a> }
<a class="jxr_linenumber" name="L193" href="#L193">193</a> <strong class="jxr_keyword">if</strong> (!options.allLines() || nonStandardLineSeparator || Strings.isNotBlank(suffix)) {
<a class="jxr_linenumber" name="L194" href="#L194">194</a> <strong class="jxr_keyword">final</strong> StringWriter w = <strong class="jxr_keyword">new</strong> StringWriter();
<a class="jxr_linenumber" name="L195" href="#L195">195</a> throwable.printStackTrace(<strong class="jxr_keyword">new</strong> PrintWriter(w));
<a class="jxr_linenumber" name="L196" href="#L196">196</a>
<a class="jxr_linenumber" name="L197" href="#L197">197</a> <strong class="jxr_keyword">final</strong> String[] array = w.toString().split(Strings.LINE_SEPARATOR);
<a class="jxr_linenumber" name="L198" href="#L198">198</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> limit = options.minLines(array.length) - 1;
<a class="jxr_linenumber" name="L199" href="#L199">199</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> suffixNotBlank = Strings.isNotBlank(suffix);
<a class="jxr_linenumber" name="L200" href="#L200">200</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt;= limit; ++i) {
<a class="jxr_linenumber" name="L201" href="#L201">201</a> buffer.append(array[i]);
<a class="jxr_linenumber" name="L202" href="#L202">202</a> <strong class="jxr_keyword">if</strong> (suffixNotBlank) {
<a class="jxr_linenumber" name="L203" href="#L203">203</a> buffer.append(' ');
<a class="jxr_linenumber" name="L204" href="#L204">204</a> buffer.append(suffix);
<a class="jxr_linenumber" name="L205" href="#L205">205</a> }
<a class="jxr_linenumber" name="L206" href="#L206">206</a> <strong class="jxr_keyword">if</strong> (i &lt; limit) {
<a class="jxr_linenumber" name="L207" href="#L207">207</a> buffer.append(options.getSeparator());
<a class="jxr_linenumber" name="L208" href="#L208">208</a> }
<a class="jxr_linenumber" name="L209" href="#L209">209</a> }
<a class="jxr_linenumber" name="L210" href="#L210">210</a> } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="L211" href="#L211">211</a> throwable.printStackTrace(<strong class="jxr_keyword">new</strong> PrintWriter(<strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/logging/log4j/core/util/StringBuilderWriter.html">StringBuilderWriter</a>(buffer)));
<a class="jxr_linenumber" name="L212" href="#L212">212</a> }
<a class="jxr_linenumber" name="L213" href="#L213">213</a> }
<a class="jxr_linenumber" name="L214" href="#L214">214</a>
<a class="jxr_linenumber" name="L215" href="#L215">215</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L216" href="#L216">216</a> <em class="jxr_javadoccomment"> * This converter obviously handles throwables.</em>
<a class="jxr_linenumber" name="L217" href="#L217">217</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="L218" href="#L218">218</a> <em class="jxr_javadoccomment"> * @return true.</em>
<a class="jxr_linenumber" name="L219" href="#L219">219</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L220" href="#L220">220</a> @Override
<a class="jxr_linenumber" name="L221" href="#L221">221</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> handlesThrowable() {
<a class="jxr_linenumber" name="L222" href="#L222">222</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="L223" href="#L223">223</a> }
<a class="jxr_linenumber" name="L224" href="#L224">224</a>
<a class="jxr_linenumber" name="L225" href="#L225">225</a> <strong class="jxr_keyword">protected</strong> String getSuffix(<strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/logging/log4j/core/LogEvent.html">LogEvent</a> event) {
<a class="jxr_linenumber" name="L226" href="#L226">226</a> <strong class="jxr_keyword">if</strong> (formatters.isEmpty()) {
<a class="jxr_linenumber" name="L227" href="#L227">227</a> <strong class="jxr_keyword">return</strong> Strings.EMPTY;
<a class="jxr_linenumber" name="L228" href="#L228">228</a> }
<a class="jxr_linenumber" name="L229" href="#L229">229</a> <em class="jxr_comment">//noinspection ForLoopReplaceableByForEach</em>
<a class="jxr_linenumber" name="L230" href="#L230">230</a> <strong class="jxr_keyword">final</strong> StringBuilder toAppendTo = <strong class="jxr_keyword">new</strong> StringBuilder();
<a class="jxr_linenumber" name="L231" href="#L231">231</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0, size = formatters.size(); i &lt; size; i++) {
<a class="jxr_linenumber" name="L232" href="#L232">232</a> formatters.get(i).format(event, toAppendTo);
<a class="jxr_linenumber" name="L233" href="#L233">233</a> }
<a class="jxr_linenumber" name="L234" href="#L234">234</a> <strong class="jxr_keyword">return</strong> toAppendTo.toString();
<a class="jxr_linenumber" name="L235" href="#L235">235</a> }
<a class="jxr_linenumber" name="L236" href="#L236">236</a>
<a class="jxr_linenumber" name="L237" href="#L237">237</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/logging/log4j/core/impl/ThrowableFormatOptions.html">ThrowableFormatOptions</a> getOptions() {
<a class="jxr_linenumber" name="L238" href="#L238">238</a> <strong class="jxr_keyword">return</strong> options;
<a class="jxr_linenumber" name="L239" href="#L239">239</a> }
<a class="jxr_linenumber" name="L240" href="#L240">240</a> }
</pre>
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