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<a name="1" href="#1">1</a> <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
<a name="3" href="#3">3</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em>
<a name="4" href="#4">4</a> <em class="jxr_comment"> * distributed with this work for additional information</em>
<a name="5" href="#5">5</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em>
<a name="6" href="#6">6</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em>
<a name="7" href="#7">7</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em>
<a name="8" href="#8">8</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em>
<a name="9" href="#9">9</a> <em class="jxr_comment"> *</em>
<a name="10" href="#10">10</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 name="11" href="#11">11</a> <em class="jxr_comment"> *</em>
<a name="12" href="#12">12</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em>
<a name="13" href="#13">13</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em>
<a name="14" href="#14">14</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em>
<a name="15" href="#15">15</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em>
<a name="16" href="#16">16</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em>
<a name="17" href="#17">17</a> <em class="jxr_comment"> * under the License.</em>
<a name="18" href="#18">18</a> <em class="jxr_comment"> */</em>
<a name="19" href="#19">19</a> <strong class="jxr_keyword">package</strong> org.apache.shiro.realm;
<a name="20" href="#20">20</a>
<a name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.authc.LogoutAware;
<a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.cache.CacheManager;
<a name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.cache.CacheManagerAware;
<a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.subject.PrincipalCollection;
<a name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.util.CollectionUtils;
<a name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.util.Nameable;
<a name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> org.slf4j.Logger;
<a name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> org.slf4j.LoggerFactory;
<a name="29" href="#29">29</a>
<a name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> java.util.Collection;
<a name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> java.util.concurrent.atomic.AtomicInteger;
<a name="32" href="#32">32</a>
<a name="33" href="#33">33</a>
<a name="34" href="#34">34</a> <em class="jxr_javadoccomment">/**</em>
<a name="35" href="#35">35</a> <em class="jxr_javadoccomment"> * A very basic abstract extension point for the {@link Realm} interface that provides caching support for subclasses.</em>
<a name="36" href="#36">36</a> <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
<a name="37" href="#37">37</a> <em class="jxr_javadoccomment"> * It also provides a convenience method,</em>
<a name="38" href="#38">38</a> <em class="jxr_javadoccomment"> * {@link #getAvailablePrincipal(org.apache.shiro.subject.PrincipalCollection)}, which is useful across all</em>
<a name="39" href="#39">39</a> <em class="jxr_javadoccomment"> * realm subclasses for obtaining a realm-specific principal/identity.</em>
<a name="40" href="#40">40</a> <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
<a name="41" href="#41">41</a> <em class="jxr_javadoccomment"> * All actual Realm method implementations are left to subclasses.</em>
<a name="42" href="#42">42</a> <em class="jxr_javadoccomment"> *</em>
<a name="43" href="#43">43</a> <em class="jxr_javadoccomment"> * @see #clearCache(org.apache.shiro.subject.PrincipalCollection)</em>
<a name="44" href="#44">44</a> <em class="jxr_javadoccomment"> * @see #onLogout(org.apache.shiro.subject.PrincipalCollection)</em>
<a name="45" href="#45">45</a> <em class="jxr_javadoccomment"> * @see #getAvailablePrincipal(org.apache.shiro.subject.PrincipalCollection)</em>
<a name="46" href="#46">46</a> <em class="jxr_javadoccomment"> * @since 0.9</em>
<a name="47" href="#47">47</a> <em class="jxr_javadoccomment"> */</em>
<a name="48" href="#48">48</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/shiro/realm/CachingRealm.html">CachingRealm</a> implements Realm, Nameable, CacheManagerAware, <a href="../../../../org/apache/shiro/authc/LogoutAware.html">LogoutAware</a> {
<a name="49" href="#49">49</a>
<a name="50" href="#50">50</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Logger log = LoggerFactory.getLogger(CachingRealm.<strong class="jxr_keyword">class</strong>);
<a name="51" href="#51">51</a>
<a name="52" href="#52">52</a> <em class="jxr_comment">//TODO - complete JavaDoc</em>
<a name="53" href="#53">53</a>
<a name="54" href="#54">54</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> AtomicInteger INSTANCE_COUNT = <strong class="jxr_keyword">new</strong> AtomicInteger();
<a name="55" href="#55">55</a>
<a name="56" href="#56">56</a> <em class="jxr_comment">/*<em class="jxr_comment">--------------------------------------------</em></em>
<a name="57" href="#57">57</a> <em class="jxr_comment"> | I N S T A N C E V A R I A B L E S |</em>
<a name="58" href="#58">58</a> <em class="jxr_comment"> ============================================*/</em>
<a name="59" href="#59">59</a> <strong class="jxr_keyword">private</strong> String name;
<a name="60" href="#60">60</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> cachingEnabled;
<a name="61" href="#61">61</a> <strong class="jxr_keyword">private</strong> <a href="../../../../org/apache/shiro/cache/CacheManager.html">CacheManager</a> cacheManager;
<a name="62" href="#62">62</a>
<a name="63" href="#63">63</a> <em class="jxr_javadoccomment">/**</em>
<a name="64" href="#64">64</a> <em class="jxr_javadoccomment"> * Default no-argument constructor that defaults</em>
<a name="65" href="#65">65</a> <em class="jxr_javadoccomment"> * {@link #isCachingEnabled() cachingEnabled} (for general caching) to {@code true} and sets a</em>
<a name="66" href="#66">66</a> <em class="jxr_javadoccomment"> * default {@link #getName() name} based on the class name.</em>
<a name="67" href="#67">67</a> <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
<a name="68" href="#68">68</a> <em class="jxr_javadoccomment"> * Note that while in general, caching may be enabled by default, subclasses have control over</em>
<a name="69" href="#69">69</a> <em class="jxr_javadoccomment"> * if specific caching is enabled.</em>
<a name="70" href="#70">70</a> <em class="jxr_javadoccomment"> */</em>
<a name="71" href="#71">71</a> <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/shiro/realm/CachingRealm.html">CachingRealm</a>() {
<a name="72" href="#72">72</a> <strong class="jxr_keyword">this</strong>.cachingEnabled = <strong class="jxr_keyword">true</strong>;
<a name="73" href="#73">73</a> <strong class="jxr_keyword">this</strong>.name = getClass().getName() + <span class="jxr_string">"_"</span> + INSTANCE_COUNT.getAndIncrement();
<a name="74" href="#74">74</a> }
<a name="75" href="#75">75</a>
<a name="76" href="#76">76</a> <em class="jxr_javadoccomment">/**</em>
<a name="77" href="#77">77</a> <em class="jxr_javadoccomment"> * Returns the &lt;tt&gt;CacheManager&lt;/tt&gt; used for data caching to reduce EIS round trips, or &lt;tt&gt;null&lt;/tt&gt; if</em>
<a name="78" href="#78">78</a> <em class="jxr_javadoccomment"> * caching is disabled.</em>
<a name="79" href="#79">79</a> <em class="jxr_javadoccomment"> *</em>
<a name="80" href="#80">80</a> <em class="jxr_javadoccomment"> * @return the &lt;tt&gt;CacheManager&lt;/tt&gt; used for data caching to reduce EIS round trips, or &lt;tt&gt;null&lt;/tt&gt; if</em>
<a name="81" href="#81">81</a> <em class="jxr_javadoccomment"> * caching is disabled.</em>
<a name="82" href="#82">82</a> <em class="jxr_javadoccomment"> */</em>
<a name="83" href="#83">83</a> <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/shiro/cache/CacheManager.html">CacheManager</a> getCacheManager() {
<a name="84" href="#84">84</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.cacheManager;
<a name="85" href="#85">85</a> }
<a name="86" href="#86">86</a>
<a name="87" href="#87">87</a> <em class="jxr_javadoccomment">/**</em>
<a name="88" href="#88">88</a> <em class="jxr_javadoccomment"> * Sets the &lt;tt&gt;CacheManager&lt;/tt&gt; to be used for data caching to reduce EIS round trips.</em>
<a name="89" href="#89">89</a> <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
<a name="90" href="#90">90</a> <em class="jxr_javadoccomment"> * This property is &lt;tt&gt;null&lt;/tt&gt; by default, indicating that caching is turned off.</em>
<a name="91" href="#91">91</a> <em class="jxr_javadoccomment"> *</em>
<a name="92" href="#92">92</a> <em class="jxr_javadoccomment"> * @param cacheManager the &lt;tt&gt;CacheManager&lt;/tt&gt; to use for data caching, or &lt;tt&gt;null&lt;/tt&gt; to disable caching.</em>
<a name="93" href="#93">93</a> <em class="jxr_javadoccomment"> */</em>
<a name="94" href="#94">94</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setCacheManager(<a href="../../../../org/apache/shiro/cache/CacheManager.html">CacheManager</a> cacheManager) {
<a name="95" href="#95">95</a> <strong class="jxr_keyword">this</strong>.cacheManager = cacheManager;
<a name="96" href="#96">96</a> afterCacheManagerSet();
<a name="97" href="#97">97</a> }
<a name="98" href="#98">98</a>
<a name="99" href="#99">99</a> <em class="jxr_javadoccomment">/**</em>
<a name="100" href="#100">100</a> <em class="jxr_javadoccomment"> * Returns {@code true} if caching should be used if a {@link CacheManager} has been</em>
<a name="101" href="#101">101</a> <em class="jxr_javadoccomment"> * {@link #setCacheManager(org.apache.shiro.cache.CacheManager) configured}, {@code false} otherwise.</em>
<a name="102" href="#102">102</a> <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
<a name="103" href="#103">103</a> <em class="jxr_javadoccomment"> * The default value is {@code true} since the large majority of Realms will benefit from caching if a CacheManager</em>
<a name="104" href="#104">104</a> <em class="jxr_javadoccomment"> * has been configured. However, memory-only realms should set this value to {@code false} since they would</em>
<a name="105" href="#105">105</a> <em class="jxr_javadoccomment"> * manage account data in memory already lookups would already be as efficient as possible.</em>
<a name="106" href="#106">106</a> <em class="jxr_javadoccomment"> *</em>
<a name="107" href="#107">107</a> <em class="jxr_javadoccomment"> * @return {@code true} if caching will be globally enabled if a {@link CacheManager} has been</em>
<a name="108" href="#108">108</a> <em class="jxr_javadoccomment"> * configured, {@code false} otherwise</em>
<a name="109" href="#109">109</a> <em class="jxr_javadoccomment"> */</em>
<a name="110" href="#110">110</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isCachingEnabled() {
<a name="111" href="#111">111</a> <strong class="jxr_keyword">return</strong> cachingEnabled;
<a name="112" href="#112">112</a> }
<a name="113" href="#113">113</a>
<a name="114" href="#114">114</a> <em class="jxr_javadoccomment">/**</em>
<a name="115" href="#115">115</a> <em class="jxr_javadoccomment"> * Sets whether or not caching should be used if a {@link CacheManager} has been</em>
<a name="116" href="#116">116</a> <em class="jxr_javadoccomment"> * {@link #setCacheManager(org.apache.shiro.cache.CacheManager) configured}.</em>
<a name="117" href="#117">117</a> <em class="jxr_javadoccomment"> *</em>
<a name="118" href="#118">118</a> <em class="jxr_javadoccomment"> * @param cachingEnabled whether or not to globally enable caching for this realm.</em>
<a name="119" href="#119">119</a> <em class="jxr_javadoccomment"> */</em>
<a name="120" href="#120">120</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setCachingEnabled(<strong class="jxr_keyword">boolean</strong> cachingEnabled) {
<a name="121" href="#121">121</a> <strong class="jxr_keyword">this</strong>.cachingEnabled = cachingEnabled;
<a name="122" href="#122">122</a> }
<a name="123" href="#123">123</a>
<a name="124" href="#124">124</a> <strong class="jxr_keyword">public</strong> String getName() {
<a name="125" href="#125">125</a> <strong class="jxr_keyword">return</strong> name;
<a name="126" href="#126">126</a> }
<a name="127" href="#127">127</a>
<a name="128" href="#128">128</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setName(String name) {
<a name="129" href="#129">129</a> <strong class="jxr_keyword">this</strong>.name = name;
<a name="130" href="#130">130</a> }
<a name="131" href="#131">131</a>
<a name="132" href="#132">132</a> <em class="jxr_javadoccomment">/**</em>
<a name="133" href="#133">133</a> <em class="jxr_javadoccomment"> * Template method that may be implemented by subclasses should they wish to react to a</em>
<a name="134" href="#134">134</a> <em class="jxr_javadoccomment"> * {@link CacheManager} instance being set on the realm instance via the</em>
<a name="135" href="#135">135</a> <em class="jxr_javadoccomment"> * {@link #setCacheManager(org.apache.shiro.cache.CacheManager)} mutator.</em>
<a name="136" href="#136">136</a> <em class="jxr_javadoccomment"> */</em>
<a name="137" href="#137">137</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> afterCacheManagerSet() {
<a name="138" href="#138">138</a> }
<a name="139" href="#139">139</a>
<a name="140" href="#140">140</a> <em class="jxr_javadoccomment">/**</em>
<a name="141" href="#141">141</a> <em class="jxr_javadoccomment"> * If caching is enabled, this will clear any cached data associated with the specified account identity.</em>
<a name="142" href="#142">142</a> <em class="jxr_javadoccomment"> * Subclasses are free to override for additional behavior, but be sure to call {@code super.onLogout} first.</em>
<a name="143" href="#143">143</a> <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
<a name="144" href="#144">144</a> <em class="jxr_javadoccomment"> * This default implementation merely calls {@link #clearCache(org.apache.shiro.subject.PrincipalCollection)}.</em>
<a name="145" href="#145">145</a> <em class="jxr_javadoccomment"> *</em>
<a name="146" href="#146">146</a> <em class="jxr_javadoccomment"> * @param principals the application-specific Subject/user identifier that is logging out.</em>
<a name="147" href="#147">147</a> <em class="jxr_javadoccomment"> * @see #clearCache(org.apache.shiro.subject.PrincipalCollection)</em>
<a name="148" href="#148">148</a> <em class="jxr_javadoccomment"> * @see #getAvailablePrincipal(org.apache.shiro.subject.PrincipalCollection)</em>
<a name="149" href="#149">149</a> <em class="jxr_javadoccomment"> * @since 1.2</em>
<a name="150" href="#150">150</a> <em class="jxr_javadoccomment"> */</em>
<a name="151" href="#151">151</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> onLogout(<a href="../../../../org/apache/shiro/subject/PrincipalCollection.html">PrincipalCollection</a> principals) {
<a name="152" href="#152">152</a> clearCache(principals);
<a name="153" href="#153">153</a> }
<a name="154" href="#154">154</a>
<a name="155" href="#155">155</a> <em class="jxr_javadoccomment">/**</em>
<a name="156" href="#156">156</a> <em class="jxr_javadoccomment"> * Clears out any cached data associated with the specified account identity/identities.</em>
<a name="157" href="#157">157</a> <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
<a name="158" href="#158">158</a> <em class="jxr_javadoccomment"> * This implementation will return quietly if the principals argument is null or empty. Otherwise it delegates</em>
<a name="159" href="#159">159</a> <em class="jxr_javadoccomment"> * to {@link #doClearCache(org.apache.shiro.subject.PrincipalCollection)}.</em>
<a name="160" href="#160">160</a> <em class="jxr_javadoccomment"> *</em>
<a name="161" href="#161">161</a> <em class="jxr_javadoccomment"> * @param principals the principals of the account for which to clear any cached data.</em>
<a name="162" href="#162">162</a> <em class="jxr_javadoccomment"> * @since 1.2</em>
<a name="163" href="#163">163</a> <em class="jxr_javadoccomment"> */</em>
<a name="164" href="#164">164</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> clearCache(<a href="../../../../org/apache/shiro/subject/PrincipalCollection.html">PrincipalCollection</a> principals) {
<a name="165" href="#165">165</a> <strong class="jxr_keyword">if</strong> (!CollectionUtils.isEmpty(principals)) {
<a name="166" href="#166">166</a> doClearCache(principals);
<a name="167" href="#167">167</a> log.trace(<span class="jxr_string">"Cleared cache entries for account with principals [{}]"</span>, principals);
<a name="168" href="#168">168</a> }
<a name="169" href="#169">169</a> }
<a name="170" href="#170">170</a>
<a name="171" href="#171">171</a> <em class="jxr_javadoccomment">/**</em>
<a name="172" href="#172">172</a> <em class="jxr_javadoccomment"> * This implementation does nothing - it is a template to be overridden by subclasses if necessary.</em>
<a name="173" href="#173">173</a> <em class="jxr_javadoccomment"> *</em>
<a name="174" href="#174">174</a> <em class="jxr_javadoccomment"> * @param principals principals the principals of the account for which to clear any cached data.</em>
<a name="175" href="#175">175</a> <em class="jxr_javadoccomment"> * @since 1.2</em>
<a name="176" href="#176">176</a> <em class="jxr_javadoccomment"> */</em>
<a name="177" href="#177">177</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> doClearCache(<a href="../../../../org/apache/shiro/subject/PrincipalCollection.html">PrincipalCollection</a> principals) {
<a name="178" href="#178">178</a> }
<a name="179" href="#179">179</a>
<a name="180" href="#180">180</a> <em class="jxr_javadoccomment">/**</em>
<a name="181" href="#181">181</a> <em class="jxr_javadoccomment"> * A utility method for subclasses that returns the first available principal of interest to this particular realm.</em>
<a name="182" href="#182">182</a> <em class="jxr_javadoccomment"> * The heuristic used to acquire the principal is as follows:</em>
<a name="183" href="#183">183</a> <em class="jxr_javadoccomment"> * &lt;ul&gt;</em>
<a name="184" href="#184">184</a> <em class="jxr_javadoccomment"> * &lt;li&gt;Attempt to get &lt;em&gt;this particular Realm's&lt;/em&gt; 'primary' principal in the {@code PrincipalCollection} via a</em>
<a name="185" href="#185">185</a> <em class="jxr_javadoccomment"> * &lt;code&gt;principals.{@link PrincipalCollection#fromRealm(String) fromRealm}({@link #getName() getName()})&lt;/code&gt;</em>
<a name="186" href="#186">186</a> <em class="jxr_javadoccomment"> * call.&lt;/li&gt;</em>
<a name="187" href="#187">187</a> <em class="jxr_javadoccomment"> * &lt;li&gt;If the previous call does not result in any principals, attempt to get the overall 'primary' principal</em>
<a name="188" href="#188">188</a> <em class="jxr_javadoccomment"> * from the PrincipalCollection via {@link org.apache.shiro.subject.PrincipalCollection#getPrimaryPrincipal()}.&lt;/li&gt;</em>
<a name="189" href="#189">189</a> <em class="jxr_javadoccomment"> * &lt;li&gt;If there are no principals from that call (or the PrincipalCollection argument was null to begin with),</em>
<a name="190" href="#190">190</a> <em class="jxr_javadoccomment"> * return {@code null}&lt;/li&gt;</em>
<a name="191" href="#191">191</a> <em class="jxr_javadoccomment"> * &lt;/ul&gt;</em>
<a name="192" href="#192">192</a> <em class="jxr_javadoccomment"> *</em>
<a name="193" href="#193">193</a> <em class="jxr_javadoccomment"> * @param principals the PrincipalCollection holding all principals (from all realms) associated with a single Subject.</em>
<a name="194" href="#194">194</a> <em class="jxr_javadoccomment"> * @return the 'primary' principal attributed to this particular realm, or the fallback 'master' principal if it</em>
<a name="195" href="#195">195</a> <em class="jxr_javadoccomment"> * exists, or if not {@code null}.</em>
<a name="196" href="#196">196</a> <em class="jxr_javadoccomment"> * @since 1.2</em>
<a name="197" href="#197">197</a> <em class="jxr_javadoccomment"> */</em>
<a name="198" href="#198">198</a> <strong class="jxr_keyword">protected</strong> Object getAvailablePrincipal(<a href="../../../../org/apache/shiro/subject/PrincipalCollection.html">PrincipalCollection</a> principals) {
<a name="199" href="#199">199</a> Object primary = <strong class="jxr_keyword">null</strong>;
<a name="200" href="#200">200</a> <strong class="jxr_keyword">if</strong> (!CollectionUtils.isEmpty(principals)) {
<a name="201" href="#201">201</a> Collection thisPrincipals = principals.fromRealm(getName());
<a name="202" href="#202">202</a> <strong class="jxr_keyword">if</strong> (!CollectionUtils.isEmpty(thisPrincipals)) {
<a name="203" href="#203">203</a> primary = thisPrincipals.iterator().next();
<a name="204" href="#204">204</a> } <strong class="jxr_keyword">else</strong> {
<a name="205" href="#205">205</a> <em class="jxr_comment">//no principals attributed to this particular realm. Fall back to the 'master' primary:</em>
<a name="206" href="#206">206</a> primary = principals.getPrimaryPrincipal();
<a name="207" href="#207">207</a> }
<a name="208" href="#208">208</a> }
<a name="209" href="#209">209</a>
<a name="210" href="#210">210</a> <strong class="jxr_keyword">return</strong> primary;
<a name="211" href="#211">211</a> }
<a name="212" href="#212">212</a> }
</pre>
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