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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.spi; |
| <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.Collections; |
| <a class="jxr_linenumber" name="20" href="#20">20</a> <strong class="jxr_keyword">import</strong> java.util.HashMap; |
| <a class="jxr_linenumber" name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> java.util.Map; |
| <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"> * The actual ThreadContext Map. A new ThreadContext Map is created each time it is updated and the Map stored</em> |
| <a class="jxr_linenumber" name="25" href="#25">25</a> <em class="jxr_javadoccomment"> * is always immutable. This means the Map can be passed to other threads without concern that it will be updated.</em> |
| <a class="jxr_linenumber" name="26" href="#26">26</a> <em class="jxr_javadoccomment"> * Since it is expected that the Map will be passed to many more log events than the number of keys it contains</em> |
| <a class="jxr_linenumber" name="27" href="#27">27</a> <em class="jxr_javadoccomment"> * the performance should be much better than if the Map was copied for each event.</em> |
| <a class="jxr_linenumber" name="28" href="#28">28</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="29" href="#29">29</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/logging/log4j/spi/DefaultThreadContextMap.html">DefaultThreadContextMap</a> <strong class="jxr_keyword">implements</strong> <a href="../../../../../org/apache/logging/log4j/spi/ThreadContextMap.html">ThreadContextMap</a> { |
| <a class="jxr_linenumber" name="30" href="#30">30</a> |
| <a class="jxr_linenumber" name="31" href="#31">31</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> useMap; |
| <a class="jxr_linenumber" name="32" href="#32">32</a> |
| <a class="jxr_linenumber" name="33" href="#33">33</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> ThreadLocal<Map<String, String>> localMap = |
| <a class="jxr_linenumber" name="34" href="#34">34</a> <strong class="jxr_keyword">new</strong> InheritableThreadLocal<Map<String, String>>() { |
| <a class="jxr_linenumber" name="35" href="#35">35</a> @Override |
| <a class="jxr_linenumber" name="36" href="#36">36</a> <strong class="jxr_keyword">protected</strong> Map<String, String> childValue(<strong class="jxr_keyword">final</strong> Map<String, String> parentValue) { |
| <a class="jxr_linenumber" name="37" href="#37">37</a> <strong class="jxr_keyword">return</strong> parentValue == <strong class="jxr_keyword">null</strong> || !useMap ? <strong class="jxr_keyword">null</strong> : |
| <a class="jxr_linenumber" name="38" href="#38">38</a> Collections.unmodifiableMap(<strong class="jxr_keyword">new</strong> HashMap<String, String>(parentValue)); |
| <a class="jxr_linenumber" name="39" href="#39">39</a> } |
| <a class="jxr_linenumber" name="40" href="#40">40</a> }; |
| <a class="jxr_linenumber" name="41" href="#41">41</a> |
| <a class="jxr_linenumber" name="42" href="#42">42</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/logging/log4j/spi/DefaultThreadContextMap.html">DefaultThreadContextMap</a>(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> useMap) { |
| <a class="jxr_linenumber" name="43" href="#43">43</a> <strong class="jxr_keyword">this</strong>.useMap = useMap; |
| <a class="jxr_linenumber" name="44" href="#44">44</a> } |
| <a class="jxr_linenumber" name="45" href="#45">45</a> |
| <a class="jxr_linenumber" name="46" href="#46">46</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="47" href="#47">47</a> <em class="jxr_javadoccomment"> * Put a context value (the <code>o</code> parameter) as identified</em> |
| <a class="jxr_linenumber" name="48" href="#48">48</a> <em class="jxr_javadoccomment"> * with the <code>key</code> parameter into the current thread's</em> |
| <a class="jxr_linenumber" name="49" href="#49">49</a> <em class="jxr_javadoccomment"> * context map.</em> |
| <a class="jxr_linenumber" name="50" href="#50">50</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a class="jxr_linenumber" name="51" href="#51">51</a> <em class="jxr_javadoccomment"> * <p>If the current thread does not have a context map it is</em> |
| <a class="jxr_linenumber" name="52" href="#52">52</a> <em class="jxr_javadoccomment"> * created as a side effect.</em> |
| <a class="jxr_linenumber" name="53" href="#53">53</a> <em class="jxr_javadoccomment"> * @param key The key name.</em> |
| <a class="jxr_linenumber" name="54" href="#54">54</a> <em class="jxr_javadoccomment"> * @param value The key value.</em> |
| <a class="jxr_linenumber" name="55" href="#55">55</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="56" href="#56">56</a> @Override |
| <a class="jxr_linenumber" name="57" href="#57">57</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> put(<strong class="jxr_keyword">final</strong> String key, <strong class="jxr_keyword">final</strong> String value) { |
| <a class="jxr_linenumber" name="58" href="#58">58</a> <strong class="jxr_keyword">if</strong> (!useMap) { |
| <a class="jxr_linenumber" name="59" href="#59">59</a> <strong class="jxr_keyword">return</strong>; |
| <a class="jxr_linenumber" name="60" href="#60">60</a> } |
| <a class="jxr_linenumber" name="61" href="#61">61</a> Map<String, String> map = localMap.get(); |
| <a class="jxr_linenumber" name="62" href="#62">62</a> map = map == <strong class="jxr_keyword">null</strong> ? <strong class="jxr_keyword">new</strong> HashMap<String, String>() : <strong class="jxr_keyword">new</strong> HashMap<String, String>(map); |
| <a class="jxr_linenumber" name="63" href="#63">63</a> map.put(key, value); |
| <a class="jxr_linenumber" name="64" href="#64">64</a> localMap.set(Collections.unmodifiableMap(map)); |
| <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> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="68" href="#68">68</a> <em class="jxr_javadoccomment"> * Get the context identified by the <code>key</code> parameter.</em> |
| <a class="jxr_linenumber" name="69" href="#69">69</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a class="jxr_linenumber" name="70" href="#70">70</a> <em class="jxr_javadoccomment"> * <p>This method has no side effects.</em> |
| <a class="jxr_linenumber" name="71" href="#71">71</a> <em class="jxr_javadoccomment"> * @param key The key to locate.</em> |
| <a class="jxr_linenumber" name="72" href="#72">72</a> <em class="jxr_javadoccomment"> * @return The value associated with the key or null.</em> |
| <a class="jxr_linenumber" name="73" href="#73">73</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="74" href="#74">74</a> @Override |
| <a class="jxr_linenumber" name="75" href="#75">75</a> <strong class="jxr_keyword">public</strong> String get(<strong class="jxr_keyword">final</strong> String key) { |
| <a class="jxr_linenumber" name="76" href="#76">76</a> <strong class="jxr_keyword">final</strong> Map<String, String> map = localMap.get(); |
| <a class="jxr_linenumber" name="77" href="#77">77</a> <strong class="jxr_keyword">return</strong> map == <strong class="jxr_keyword">null</strong> ? <strong class="jxr_keyword">null</strong> : map.get(key); |
| <a class="jxr_linenumber" name="78" href="#78">78</a> } |
| <a class="jxr_linenumber" name="79" href="#79">79</a> |
| <a class="jxr_linenumber" name="80" href="#80">80</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="81" href="#81">81</a> <em class="jxr_javadoccomment"> * Remove the the context identified by the <code>key</code></em> |
| <a class="jxr_linenumber" name="82" href="#82">82</a> <em class="jxr_javadoccomment"> * parameter.</em> |
| <a class="jxr_linenumber" name="83" href="#83">83</a> <em class="jxr_javadoccomment"> * @param key The key to remove.</em> |
| <a class="jxr_linenumber" name="84" href="#84">84</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="85" href="#85">85</a> @Override |
| <a class="jxr_linenumber" name="86" href="#86">86</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> remove(<strong class="jxr_keyword">final</strong> String key) { |
| <a class="jxr_linenumber" name="87" href="#87">87</a> <strong class="jxr_keyword">final</strong> Map<String, String> map = localMap.get(); |
| <a class="jxr_linenumber" name="88" href="#88">88</a> <strong class="jxr_keyword">if</strong> (map != <strong class="jxr_keyword">null</strong>) { |
| <a class="jxr_linenumber" name="89" href="#89">89</a> <strong class="jxr_keyword">final</strong> Map<String, String> copy = <strong class="jxr_keyword">new</strong> HashMap<String, String>(map); |
| <a class="jxr_linenumber" name="90" href="#90">90</a> copy.remove(key); |
| <a class="jxr_linenumber" name="91" href="#91">91</a> localMap.set(Collections.unmodifiableMap(copy)); |
| <a class="jxr_linenumber" name="92" href="#92">92</a> } |
| <a class="jxr_linenumber" name="93" href="#93">93</a> } |
| <a class="jxr_linenumber" name="94" href="#94">94</a> |
| <a class="jxr_linenumber" name="95" href="#95">95</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="96" href="#96">96</a> <em class="jxr_javadoccomment"> * Clear the context.</em> |
| <a class="jxr_linenumber" name="97" href="#97">97</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="98" href="#98">98</a> @Override |
| <a class="jxr_linenumber" name="99" href="#99">99</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> clear() { |
| <a class="jxr_linenumber" name="100" href="#100">100</a> localMap.remove(); |
| <a class="jxr_linenumber" name="101" href="#101">101</a> } |
| <a class="jxr_linenumber" name="102" href="#102">102</a> |
| <a class="jxr_linenumber" name="103" href="#103">103</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="104" href="#104">104</a> <em class="jxr_javadoccomment"> * Determine if the key is in the context.</em> |
| <a class="jxr_linenumber" name="105" href="#105">105</a> <em class="jxr_javadoccomment"> * @param key The key to locate.</em> |
| <a class="jxr_linenumber" name="106" href="#106">106</a> <em class="jxr_javadoccomment"> * @return True if the key is in the context, false otherwise.</em> |
| <a class="jxr_linenumber" name="107" href="#107">107</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="108" href="#108">108</a> @Override |
| <a class="jxr_linenumber" name="109" href="#109">109</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> containsKey(<strong class="jxr_keyword">final</strong> String key) { |
| <a class="jxr_linenumber" name="110" href="#110">110</a> <strong class="jxr_keyword">final</strong> Map<String, String> map = localMap.get(); |
| <a class="jxr_linenumber" name="111" href="#111">111</a> <strong class="jxr_keyword">return</strong> map != <strong class="jxr_keyword">null</strong> && map.containsKey(key); |
| <a class="jxr_linenumber" name="112" href="#112">112</a> } |
| <a class="jxr_linenumber" name="113" href="#113">113</a> |
| <a class="jxr_linenumber" name="114" href="#114">114</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="115" href="#115">115</a> <em class="jxr_javadoccomment"> * Returns a non-{@code null} mutable copy of the ThreadContext Map.</em> |
| <a class="jxr_linenumber" name="116" href="#116">116</a> <em class="jxr_javadoccomment"> * @return a non-{@code null} mutable copy of the context.</em> |
| <a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="118" href="#118">118</a> @Override |
| <a class="jxr_linenumber" name="119" href="#119">119</a> <strong class="jxr_keyword">public</strong> Map<String, String> getCopy() { |
| <a class="jxr_linenumber" name="120" href="#120">120</a> <strong class="jxr_keyword">final</strong> Map<String, String> map = localMap.get(); |
| <a class="jxr_linenumber" name="121" href="#121">121</a> <strong class="jxr_keyword">return</strong> map == <strong class="jxr_keyword">null</strong> ? <strong class="jxr_keyword">new</strong> HashMap<String, String>() : <strong class="jxr_keyword">new</strong> HashMap<String, String>(map); |
| <a class="jxr_linenumber" name="122" href="#122">122</a> } |
| <a class="jxr_linenumber" name="123" href="#123">123</a> |
| <a class="jxr_linenumber" name="124" href="#124">124</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="125" href="#125">125</a> <em class="jxr_javadoccomment"> * Returns either {@code null} or an immutable view of the context Map.</em> |
| <a class="jxr_linenumber" name="126" href="#126">126</a> <em class="jxr_javadoccomment"> * @return the Context Map.</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> @Override |
| <a class="jxr_linenumber" name="129" href="#129">129</a> <strong class="jxr_keyword">public</strong> Map<String, String> getImmutableMapOrNull() { |
| <a class="jxr_linenumber" name="130" href="#130">130</a> <strong class="jxr_keyword">return</strong> localMap.get(); |
| <a class="jxr_linenumber" name="131" href="#131">131</a> } |
| <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"> * Returns true if the Map is empty.</em> |
| <a class="jxr_linenumber" name="135" href="#135">135</a> <em class="jxr_javadoccomment"> * @return true if the Map is empty, false otherwise.</em> |
| <a class="jxr_linenumber" name="136" href="#136">136</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="137" href="#137">137</a> @Override |
| <a class="jxr_linenumber" name="138" href="#138">138</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isEmpty() { |
| <a class="jxr_linenumber" name="139" href="#139">139</a> <strong class="jxr_keyword">final</strong> Map<String, String> map = localMap.get(); |
| <a class="jxr_linenumber" name="140" href="#140">140</a> <strong class="jxr_keyword">return</strong> map == <strong class="jxr_keyword">null</strong> || map.size() == 0; |
| <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> @Override |
| <a class="jxr_linenumber" name="144" href="#144">144</a> <strong class="jxr_keyword">public</strong> String toString() { |
| <a class="jxr_linenumber" name="145" href="#145">145</a> Map<String, String> map = localMap.get(); |
| <a class="jxr_linenumber" name="146" href="#146">146</a> <strong class="jxr_keyword">return</strong> map == <strong class="jxr_keyword">null</strong> ? <span class="jxr_string">"{}"</span> : map.toString(); |
| <a class="jxr_linenumber" name="147" href="#147">147</a> } |
| <a class="jxr_linenumber" name="148" href="#148">148</a> } |
| </pre> |
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