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apache / logging-log4j-audit-site / 4ea2ec6d7b4f743fb9c5b48c774e9fbe5be4cd24 / . / log4j-audit-1.0.1 / log4j-audit / log4j-audit-api / xref / org / apache / logging / log4j / audit / request / RequestContextMappings.html
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<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.audit.request;
<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.lang.annotation.Annotation;
<a class="jxr_linenumber" name="L20" href="#L20">20</a> <strong class="jxr_keyword">import</strong> java.lang.reflect.Field;
<a class="jxr_linenumber" name="L21" href="#L21">21</a> <strong class="jxr_keyword">import</strong> java.util.HashMap;
<a class="jxr_linenumber" name="L22" href="#L22">22</a> <strong class="jxr_keyword">import</strong> java.util.Map;
<a class="jxr_linenumber" name="L23" href="#L23">23</a> <strong class="jxr_keyword">import</strong> java.util.function.Supplier;
<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.audit.annotation.Chained;
<a class="jxr_linenumber" name="L26" href="#L26">26</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.audit.annotation.ChainedSupplier;
<a class="jxr_linenumber" name="L27" href="#L27">27</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.audit.annotation.ClientServer;
<a class="jxr_linenumber" name="L28" href="#L28">28</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.audit.annotation.HeaderPrefix;
<a class="jxr_linenumber" name="L29" href="#L29">29</a> <strong class="jxr_keyword">import</strong> org.apache.logging.log4j.audit.annotation.Local;
<a class="jxr_linenumber" name="L30" href="#L30">30</a>
<a class="jxr_linenumber" name="L31" href="#L31">31</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/logging/log4j/audit/request/RequestContextMappings.html">RequestContextMappings</a> {
<a class="jxr_linenumber" name="L32" href="#L32">32</a>
<a class="jxr_linenumber" name="L33" href="#L33">33</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String DEFAULT_HEADER_PREFIX = <span class="jxr_string">"request-context-"</span>;
<a class="jxr_linenumber" name="L34" href="#L34">34</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Map&lt;String, RequestContextMapping&gt; mappings = <strong class="jxr_keyword">new</strong> HashMap&lt;&gt;();
<a class="jxr_linenumber" name="L35" href="#L35">35</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> String headerPrefix;
<a class="jxr_linenumber" name="L36" href="#L36">36</a>
<a class="jxr_linenumber" name="L37" href="#L37">37</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/logging/log4j/audit/request/RequestContextMappings.html">RequestContextMappings</a>(String fqcn) {
<a class="jxr_linenumber" name="L38" href="#L38">38</a> <strong class="jxr_keyword">this</strong>(getClass(fqcn));
<a class="jxr_linenumber" name="L39" href="#L39">39</a> }
<a class="jxr_linenumber" name="L40" href="#L40">40</a>
<a class="jxr_linenumber" name="L41" href="#L41">41</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Class&lt;?&gt; getClass(String fqcn) {
<a class="jxr_linenumber" name="L42" href="#L42">42</a> <strong class="jxr_keyword">if</strong> (fqcn == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L43" href="#L43">43</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"RequestContext class name cannot be null"</span>);
<a class="jxr_linenumber" name="L44" href="#L44">44</a> }
<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> <strong class="jxr_keyword">return</strong> Class.forName(fqcn);
<a class="jxr_linenumber" name="L47" href="#L47">47</a> } <strong class="jxr_keyword">catch</strong> (ClassNotFoundException ex) {
<a class="jxr_linenumber" name="L48" href="#L48">48</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"Invalid RequestContext class name"</span>, ex);
<a class="jxr_linenumber" name="L49" href="#L49">49</a> }
<a class="jxr_linenumber" name="L50" href="#L50">50</a> }
<a class="jxr_linenumber" name="L51" href="#L51">51</a>
<a class="jxr_linenumber" name="L52" href="#L52">52</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/logging/log4j/audit/request/RequestContextMappings.html">RequestContextMappings</a>(Class&lt;?&gt; clazz) {
<a class="jxr_linenumber" name="L53" href="#L53">53</a> <strong class="jxr_keyword">if</strong> (clazz == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L54" href="#L54">54</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"A RequestContext class must be provided"</span>);
<a class="jxr_linenumber" name="L55" href="#L55">55</a> }
<a class="jxr_linenumber" name="L56" href="#L56">56</a> Annotation annotation = clazz.getAnnotation(HeaderPrefix.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="L57" href="#L57">57</a> <strong class="jxr_keyword">this</strong>.headerPrefix = annotation != <strong class="jxr_keyword">null</strong> ? ((HeaderPrefix) annotation).value().toLowerCase() : DEFAULT_HEADER_PREFIX;
<a class="jxr_linenumber" name="L58" href="#L58">58</a> Field[] fields = clazz.getDeclaredFields();
<a class="jxr_linenumber" name="L59" href="#L59">59</a> <strong class="jxr_keyword">for</strong> (Field field : fields) {
<a class="jxr_linenumber" name="L60" href="#L60">60</a> <strong class="jxr_keyword">if</strong> (field.getType().equals(String.<strong class="jxr_keyword">class</strong>)) {
<a class="jxr_linenumber" name="L61" href="#L61">61</a> String fieldName;
<a class="jxr_linenumber" name="L62" href="#L62">62</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="L63" href="#L63">63</a> fieldName = (String) field.get(<strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="L64" href="#L64">64</a> } <strong class="jxr_keyword">catch</strong> (IllegalAccessException ex) {
<a class="jxr_linenumber" name="L65" href="#L65">65</a> <strong class="jxr_keyword">continue</strong>;
<a class="jxr_linenumber" name="L66" href="#L66">66</a> }
<a class="jxr_linenumber" name="L67" href="#L67">67</a> <strong class="jxr_keyword">if</strong> (fieldName == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L68" href="#L68">68</a> <strong class="jxr_keyword">continue</strong>;
<a class="jxr_linenumber" name="L69" href="#L69">69</a> }
<a class="jxr_linenumber" name="L70" href="#L70">70</a> annotation = field.getAnnotation(ClientServer.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="L71" href="#L71">71</a> <strong class="jxr_keyword">if</strong> (annotation != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L72" href="#L72">72</a> mappings.put(fieldName.toLowerCase(), <strong class="jxr_keyword">new</strong> ClientServerMapping(fieldName));
<a class="jxr_linenumber" name="L73" href="#L73">73</a> <strong class="jxr_keyword">continue</strong>;
<a class="jxr_linenumber" name="L74" href="#L74">74</a> }
<a class="jxr_linenumber" name="L75" href="#L75">75</a>
<a class="jxr_linenumber" name="L76" href="#L76">76</a> annotation = field.getAnnotation(Local.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="L77" href="#L77">77</a> <strong class="jxr_keyword">if</strong> (annotation != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L78" href="#L78">78</a> mappings.put(fieldName.toLowerCase(), <strong class="jxr_keyword">new</strong> LocalMapping(fieldName));
<a class="jxr_linenumber" name="L79" href="#L79">79</a> }
<a class="jxr_linenumber" name="L80" href="#L80">80</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (field.getType().equals(Supplier.<strong class="jxr_keyword">class</strong>)) {
<a class="jxr_linenumber" name="L81" href="#L81">81</a> annotation = field.getAnnotation(Chained.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="L82" href="#L82">82</a> <strong class="jxr_keyword">if</strong> (annotation != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L83" href="#L83">83</a> <a href="../../../../../../org/apache/logging/log4j/audit/annotation/Chained.html">Chained</a> chained = (Chained) annotation;
<a class="jxr_linenumber" name="L84" href="#L84">84</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="L85" href="#L85">85</a> @SuppressWarnings(<span class="jxr_string">"unchecked"</span>)
<a class="jxr_linenumber" name="L86" href="#L86">86</a> Supplier&lt;String&gt; supplier = (Supplier&lt;String&gt;) field.get(<strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="L87" href="#L87">87</a> mappings.put(chained.fieldName().toLowerCase(),
<a class="jxr_linenumber" name="L88" href="#L88">88</a> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/logging/log4j/audit/request/ChainedMapping.html">ChainedMapping</a>(chained.fieldName(), chained.chainedFieldName(), supplier));
<a class="jxr_linenumber" name="L89" href="#L89">89</a> } <strong class="jxr_keyword">catch</strong> (IllegalAccessException ex) {
<a class="jxr_linenumber" name="L90" href="#L90">90</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"Unable to retrieve Supplier for chained field "</span> + chained.fieldName());
<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> }
<a class="jxr_linenumber" name="L94" href="#L94">94</a> }
<a class="jxr_linenumber" name="L95" href="#L95">95</a> mappings.entrySet().removeIf(a -&gt; validateChained(a.getValue()));
<a class="jxr_linenumber" name="L96" href="#L96">96</a> }
<a class="jxr_linenumber" name="L97" href="#L97">97</a>
<a class="jxr_linenumber" name="L98" href="#L98">98</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/logging/log4j/audit/request/RequestContextMapping.html">RequestContextMapping</a> getMapping(String name) {
<a class="jxr_linenumber" name="L99" href="#L99">99</a> <strong class="jxr_keyword">return</strong> mappings.get(name.toLowerCase());
<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 href="../../../../../../org/apache/logging/log4j/audit/request/RequestContextMapping.html">RequestContextMapping</a> getMappingByHeader(String header) {
<a class="jxr_linenumber" name="L103" href="#L103">103</a> String hdr = header.toLowerCase();
<a class="jxr_linenumber" name="L104" href="#L104">104</a> <strong class="jxr_keyword">if</strong> (hdr.startsWith(headerPrefix)) {
<a class="jxr_linenumber" name="L105" href="#L105">105</a> <strong class="jxr_keyword">return</strong> mappings.get(hdr.substring(headerPrefix.length()));
<a class="jxr_linenumber" name="L106" href="#L106">106</a> }
<a class="jxr_linenumber" name="L107" href="#L107">107</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="L108" href="#L108">108</a> }
<a class="jxr_linenumber" name="L109" href="#L109">109</a>
<a class="jxr_linenumber" name="L110" href="#L110">110</a> <strong class="jxr_keyword">public</strong> String getHeaderPrefix() {
<a class="jxr_linenumber" name="L111" href="#L111">111</a> <strong class="jxr_keyword">return</strong> headerPrefix;
<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">private</strong> <strong class="jxr_keyword">boolean</strong> validateChained(<a href="../../../../../../org/apache/logging/log4j/audit/request/RequestContextMapping.html">RequestContextMapping</a> mapping) {
<a class="jxr_linenumber" name="L115" href="#L115">115</a> <strong class="jxr_keyword">return</strong> mapping.getScope() == Scope.CHAIN &amp;&amp; !mappings.containsKey(mapping.getChainKey().toLowerCase());
<a class="jxr_linenumber" name="L116" href="#L116">116</a> }
<a class="jxr_linenumber" name="L117" href="#L117">117</a> }
</pre>
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