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From ggreg...@apache.org
Subject svn commit: r1572159 [15/45] - in /httpcomponents/site: ./ css/ httpcomponents-asyncclient-4.0.x/ httpcomponents-client-4.2.x/ httpcomponents-client-4.3.x/ httpcomponents-client-4.3.x/fluent-hc/ httpcomponents-client-4.3.x/fluent-hc/apidocs/ httpcompon...
Date Wed, 26 Feb 2014 16:48:15 GMT
Modified: httpcomponents/site/httpcomponents-client-4.3.x/httpclient-cache/xref/org/apache/http/impl/client/cache/CachingExec.html
URL: http://svn.apache.org/viewvc/httpcomponents/site/httpcomponents-client-4.3.x/httpclient-cache/xref/org/apache/http/impl/client/cache/CachingExec.html?rev=1572159&r1=1572158&r2=1572159&view=diff
==============================================================================
--- httpcomponents/site/httpcomponents-client-4.3.x/httpclient-cache/xref/org/apache/http/impl/client/cache/CachingExec.html (original)
+++ httpcomponents/site/httpcomponents-client-4.3.x/httpclient-cache/xref/org/apache/http/impl/client/cache/CachingExec.html Wed Feb 26 16:47:55 2014
@@ -74,811 +74,810 @@
 <a class="jxr_linenumber" name="64" href="#64">64</a>  <strong class="jxr_keyword">import</strong> org.apache.http.protocol.HTTP;
 <a class="jxr_linenumber" name="65" href="#65">65</a>  <strong class="jxr_keyword">import</strong> org.apache.http.protocol.HttpContext;
 <a class="jxr_linenumber" name="66" href="#66">66</a>  <strong class="jxr_keyword">import</strong> org.apache.http.util.Args;
-<a class="jxr_linenumber" name="67" href="#67">67</a>  <strong class="jxr_keyword">import</strong> org.apache.http.util.EntityUtils;
-<a class="jxr_linenumber" name="68" href="#68">68</a>  <strong class="jxr_keyword">import</strong> org.apache.http.util.VersionInfo;
-<a class="jxr_linenumber" name="69" href="#69">69</a>  
-<a class="jxr_linenumber" name="70" href="#70">70</a>  <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="71" href="#71">71</a>  <em class="jxr_javadoccomment"> * Request executor in the request execution chain that is responsible for</em>
-<a class="jxr_linenumber" name="72" href="#72">72</a>  <em class="jxr_javadoccomment"> * transparent client-side caching. The current implementation is conditionally</em>
-<a class="jxr_linenumber" name="73" href="#73">73</a>  <em class="jxr_javadoccomment"> * compliant with HTTP/1.1 (meaning all the MUST and MUST NOTs are obeyed),</em>
-<a class="jxr_linenumber" name="74" href="#74">74</a>  <em class="jxr_javadoccomment"> * although quite a lot, though not all, of the SHOULDs and SHOULD NOTs</em>
-<a class="jxr_linenumber" name="75" href="#75">75</a>  <em class="jxr_javadoccomment"> * are obeyed too.</em>
-<a class="jxr_linenumber" name="76" href="#76">76</a>  <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
-<a class="jxr_linenumber" name="77" href="#77">77</a>  <em class="jxr_javadoccomment"> * Folks that would like to experiment with alternative storage backends</em>
-<a class="jxr_linenumber" name="78" href="#78">78</a>  <em class="jxr_javadoccomment"> * should look at the {@link HttpCacheStorage} interface and the related</em>
-<a class="jxr_linenumber" name="79" href="#79">79</a>  <em class="jxr_javadoccomment"> * package documentation there. You may also be interested in the provided</em>
-<a class="jxr_linenumber" name="80" href="#80">80</a>  <em class="jxr_javadoccomment"> * {@link org.apache.http.impl.client.cache.ehcache.EhcacheHttpCacheStorage</em>
-<a class="jxr_linenumber" name="81" href="#81">81</a>  <em class="jxr_javadoccomment"> * EhCache} and {@link</em>
-<a class="jxr_linenumber" name="82" href="#82">82</a>  <em class="jxr_javadoccomment"> * org.apache.http.impl.client.cache.memcached.MemcachedHttpCacheStorage</em>
-<a class="jxr_linenumber" name="83" href="#83">83</a>  <em class="jxr_javadoccomment"> * memcached} storage backends.</em>
-<a class="jxr_linenumber" name="84" href="#84">84</a>  <em class="jxr_javadoccomment"> * &lt;p/&gt;</em>
-<a class="jxr_linenumber" name="85" href="#85">85</a>  <em class="jxr_javadoccomment"> * Further responsibilities such as communication with the opposite</em>
-<a class="jxr_linenumber" name="86" href="#86">86</a>  <em class="jxr_javadoccomment"> * endpoint is delegated to the next executor in the request execution</em>
-<a class="jxr_linenumber" name="87" href="#87">87</a>  <em class="jxr_javadoccomment"> * chain.</em>
-<a class="jxr_linenumber" name="88" href="#88">88</a>  <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="89" href="#89">89</a>  <em class="jxr_javadoccomment"> * @since 4.3</em>
-<a class="jxr_linenumber" name="90" href="#90">90</a>  <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="91" href="#91">91</a>  @ThreadSafe <em class="jxr_comment">// So long as the responseCache implementation is threadsafe</em>
-<a class="jxr_linenumber" name="92" href="#92">92</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachingExec.html">CachingExec</a> <strong class="jxr_keyword">implements</strong> ClientExecChain {
-<a class="jxr_linenumber" name="93" href="#93">93</a>  
-<a class="jxr_linenumber" name="94" href="#94">94</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> SUPPORTS_RANGE_AND_CONTENT_RANGE_HEADERS = false;
-<a class="jxr_linenumber" name="95" href="#95">95</a>  
-<a class="jxr_linenumber" name="96" href="#96">96</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> AtomicLong cacheHits = <strong class="jxr_keyword">new</strong> AtomicLong();
-<a class="jxr_linenumber" name="97" href="#97">97</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> AtomicLong cacheMisses = <strong class="jxr_keyword">new</strong> AtomicLong();
-<a class="jxr_linenumber" name="98" href="#98">98</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> AtomicLong cacheUpdates = <strong class="jxr_keyword">new</strong> AtomicLong();
-<a class="jxr_linenumber" name="99" href="#99">99</a>  
-<a class="jxr_linenumber" name="100" href="#100">100</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Map&lt;ProtocolVersion, String&gt; viaHeaders = <strong class="jxr_keyword">new</strong> HashMap&lt;ProtocolVersion, String&gt;(4);
-<a class="jxr_linenumber" name="101" href="#101">101</a> 
-<a class="jxr_linenumber" name="102" href="#102">102</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheConfig.html">CacheConfig</a> cacheConfig;
-<a class="jxr_linenumber" name="103" href="#103">103</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> ClientExecChain backend;
-<a class="jxr_linenumber" name="104" href="#104">104</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/HttpCache.html">HttpCache</a> responseCache;
-<a class="jxr_linenumber" name="105" href="#105">105</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheValidityPolicy.html">CacheValidityPolicy</a> validityPolicy;
-<a class="jxr_linenumber" name="106" href="#106">106</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachedHttpResponseGenerator.html">CachedHttpResponseGenerator</a> responseGenerator;
-<a class="jxr_linenumber" name="107" href="#107">107</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheableRequestPolicy.html">CacheableRequestPolicy</a> cacheableRequestPolicy;
-<a class="jxr_linenumber" name="108" href="#108">108</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachedResponseSuitabilityChecker.html">CachedResponseSuitabilityChecker</a> suitabilityChecker;
-<a class="jxr_linenumber" name="109" href="#109">109</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/ConditionalRequestBuilder.html">ConditionalRequestBuilder</a> conditionalRequestBuilder;
-<a class="jxr_linenumber" name="110" href="#110">110</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/ResponseProtocolCompliance.html">ResponseProtocolCompliance</a> responseCompliance;
-<a class="jxr_linenumber" name="111" href="#111">111</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/RequestProtocolCompliance.html">RequestProtocolCompliance</a> requestCompliance;
-<a class="jxr_linenumber" name="112" href="#112">112</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/ResponseCachingPolicy.html">ResponseCachingPolicy</a> responseCachingPolicy;
-<a class="jxr_linenumber" name="113" href="#113">113</a> 
-<a class="jxr_linenumber" name="114" href="#114">114</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/AsynchronousValidator.html">AsynchronousValidator</a> asynchRevalidator;
-<a class="jxr_linenumber" name="115" href="#115">115</a> 
-<a class="jxr_linenumber" name="116" href="#116">116</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Log log = LogFactory.getLog(getClass());
-<a class="jxr_linenumber" name="117" href="#117">117</a> 
-<a class="jxr_linenumber" name="118" href="#118">118</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachingExec.html">CachingExec</a>(
-<a class="jxr_linenumber" name="119" href="#119">119</a>             <strong class="jxr_keyword">final</strong> ClientExecChain backend,
-<a class="jxr_linenumber" name="120" href="#120">120</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/HttpCache.html">HttpCache</a> cache,
-<a class="jxr_linenumber" name="121" href="#121">121</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheConfig.html">CacheConfig</a> config) {
-<a class="jxr_linenumber" name="122" href="#122">122</a>         <strong class="jxr_keyword">this</strong>(backend, cache, config, <strong class="jxr_keyword">null</strong>);
-<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>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachingExec.html">CachingExec</a>(
-<a class="jxr_linenumber" name="126" href="#126">126</a>             <strong class="jxr_keyword">final</strong> ClientExecChain backend,
-<a class="jxr_linenumber" name="127" href="#127">127</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/HttpCache.html">HttpCache</a> cache,
-<a class="jxr_linenumber" name="128" href="#128">128</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheConfig.html">CacheConfig</a> config,
-<a class="jxr_linenumber" name="129" href="#129">129</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/AsynchronousValidator.html">AsynchronousValidator</a> asynchRevalidator) {
-<a class="jxr_linenumber" name="130" href="#130">130</a>         <strong class="jxr_keyword">super</strong>();
-<a class="jxr_linenumber" name="131" href="#131">131</a>         Args.notNull(backend, <span class="jxr_string">"HTTP backend"</span>);
-<a class="jxr_linenumber" name="132" href="#132">132</a>         Args.notNull(cache, <span class="jxr_string">"HttpCache"</span>);
-<a class="jxr_linenumber" name="133" href="#133">133</a>         <strong class="jxr_keyword">this</strong>.cacheConfig = config != <strong class="jxr_keyword">null</strong> ? config : CacheConfig.DEFAULT;
-<a class="jxr_linenumber" name="134" href="#134">134</a>         <strong class="jxr_keyword">this</strong>.backend = backend;
-<a class="jxr_linenumber" name="135" href="#135">135</a>         <strong class="jxr_keyword">this</strong>.responseCache = cache;
-<a class="jxr_linenumber" name="136" href="#136">136</a>         <strong class="jxr_keyword">this</strong>.validityPolicy = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheValidityPolicy.html">CacheValidityPolicy</a>();
-<a class="jxr_linenumber" name="137" href="#137">137</a>         <strong class="jxr_keyword">this</strong>.responseGenerator = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachedHttpResponseGenerator.html">CachedHttpResponseGenerator</a>(<strong class="jxr_keyword">this</strong>.validityPolicy);
-<a class="jxr_linenumber" name="138" href="#138">138</a>         <strong class="jxr_keyword">this</strong>.cacheableRequestPolicy = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheableRequestPolicy.html">CacheableRequestPolicy</a>();
-<a class="jxr_linenumber" name="139" href="#139">139</a>         <strong class="jxr_keyword">this</strong>.suitabilityChecker = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachedResponseSuitabilityChecker.html">CachedResponseSuitabilityChecker</a>(<strong class="jxr_keyword">this</strong>.validityPolicy, config);
-<a class="jxr_linenumber" name="140" href="#140">140</a>         <strong class="jxr_keyword">this</strong>.conditionalRequestBuilder = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/ConditionalRequestBuilder.html">ConditionalRequestBuilder</a>();
-<a class="jxr_linenumber" name="141" href="#141">141</a>         <strong class="jxr_keyword">this</strong>.responseCompliance = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/ResponseProtocolCompliance.html">ResponseProtocolCompliance</a>();
-<a class="jxr_linenumber" name="142" href="#142">142</a>         <strong class="jxr_keyword">this</strong>.requestCompliance = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/RequestProtocolCompliance.html">RequestProtocolCompliance</a>(config.isWeakETagOnPutDeleteAllowed());
-<a class="jxr_linenumber" name="143" href="#143">143</a>         <strong class="jxr_keyword">this</strong>.responseCachingPolicy = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/ResponseCachingPolicy.html">ResponseCachingPolicy</a>(
-<a class="jxr_linenumber" name="144" href="#144">144</a>                 <strong class="jxr_keyword">this</strong>.cacheConfig.getMaxObjectSize(), <strong class="jxr_keyword">this</strong>.cacheConfig.isSharedCache(),
-<a class="jxr_linenumber" name="145" href="#145">145</a>                 <strong class="jxr_keyword">this</strong>.cacheConfig.isNeverCacheHTTP10ResponsesWithQuery(), <strong class="jxr_keyword">this</strong>.cacheConfig.is303CachingEnabled());
-<a class="jxr_linenumber" name="146" href="#146">146</a>         <strong class="jxr_keyword">this</strong>.asynchRevalidator = asynchRevalidator;
-<a class="jxr_linenumber" name="147" href="#147">147</a>     }
-<a class="jxr_linenumber" name="148" href="#148">148</a> 
-<a class="jxr_linenumber" name="149" href="#149">149</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachingExec.html">CachingExec</a>(
-<a class="jxr_linenumber" name="150" href="#150">150</a>             <strong class="jxr_keyword">final</strong> ClientExecChain backend,
-<a class="jxr_linenumber" name="151" href="#151">151</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/ResourceFactory.html">ResourceFactory</a> resourceFactory,
-<a class="jxr_linenumber" name="152" href="#152">152</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheStorage.html">HttpCacheStorage</a> storage,
-<a class="jxr_linenumber" name="153" href="#153">153</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheConfig.html">CacheConfig</a> config) {
-<a class="jxr_linenumber" name="154" href="#154">154</a>         <strong class="jxr_keyword">this</strong>(backend, <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/BasicHttpCache.html">BasicHttpCache</a>(resourceFactory, storage, config), config);
-<a class="jxr_linenumber" name="155" href="#155">155</a>     }
-<a class="jxr_linenumber" name="156" href="#156">156</a> 
-<a class="jxr_linenumber" name="157" href="#157">157</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachingExec.html">CachingExec</a>(<strong class="jxr_keyword">final</strong> ClientExecChain backend) {
-<a class="jxr_linenumber" name="158" href="#158">158</a>         <strong class="jxr_keyword">this</strong>(backend, <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/BasicHttpCache.html">BasicHttpCache</a>(), CacheConfig.DEFAULT);
-<a class="jxr_linenumber" name="159" href="#159">159</a>     }
-<a class="jxr_linenumber" name="160" href="#160">160</a> 
-<a class="jxr_linenumber" name="161" href="#161">161</a>     <a href="../../../../../../org/apache/http/impl/client/cache/CachingExec.html">CachingExec</a>(
-<a class="jxr_linenumber" name="162" href="#162">162</a>             <strong class="jxr_keyword">final</strong> ClientExecChain backend,
-<a class="jxr_linenumber" name="163" href="#163">163</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/HttpCache.html">HttpCache</a> responseCache,
-<a class="jxr_linenumber" name="164" href="#164">164</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheValidityPolicy.html">CacheValidityPolicy</a> validityPolicy,
-<a class="jxr_linenumber" name="165" href="#165">165</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/ResponseCachingPolicy.html">ResponseCachingPolicy</a> responseCachingPolicy,
-<a class="jxr_linenumber" name="166" href="#166">166</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachedHttpResponseGenerator.html">CachedHttpResponseGenerator</a> responseGenerator,
-<a class="jxr_linenumber" name="167" href="#167">167</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheableRequestPolicy.html">CacheableRequestPolicy</a> cacheableRequestPolicy,
-<a class="jxr_linenumber" name="168" href="#168">168</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CachedResponseSuitabilityChecker.html">CachedResponseSuitabilityChecker</a> suitabilityChecker,
-<a class="jxr_linenumber" name="169" href="#169">169</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/ConditionalRequestBuilder.html">ConditionalRequestBuilder</a> conditionalRequestBuilder,
-<a class="jxr_linenumber" name="170" href="#170">170</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/ResponseProtocolCompliance.html">ResponseProtocolCompliance</a> responseCompliance,
-<a class="jxr_linenumber" name="171" href="#171">171</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/RequestProtocolCompliance.html">RequestProtocolCompliance</a> requestCompliance,
-<a class="jxr_linenumber" name="172" href="#172">172</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/CacheConfig.html">CacheConfig</a> config,
-<a class="jxr_linenumber" name="173" href="#173">173</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/AsynchronousValidator.html">AsynchronousValidator</a> asynchRevalidator) {
-<a class="jxr_linenumber" name="174" href="#174">174</a>         <strong class="jxr_keyword">this</strong>.cacheConfig = config != <strong class="jxr_keyword">null</strong> ? config : CacheConfig.DEFAULT;
-<a class="jxr_linenumber" name="175" href="#175">175</a>         <strong class="jxr_keyword">this</strong>.backend = backend;
-<a class="jxr_linenumber" name="176" href="#176">176</a>         <strong class="jxr_keyword">this</strong>.responseCache = responseCache;
-<a class="jxr_linenumber" name="177" href="#177">177</a>         <strong class="jxr_keyword">this</strong>.validityPolicy = validityPolicy;
-<a class="jxr_linenumber" name="178" href="#178">178</a>         <strong class="jxr_keyword">this</strong>.responseCachingPolicy = responseCachingPolicy;
-<a class="jxr_linenumber" name="179" href="#179">179</a>         <strong class="jxr_keyword">this</strong>.responseGenerator = responseGenerator;
-<a class="jxr_linenumber" name="180" href="#180">180</a>         <strong class="jxr_keyword">this</strong>.cacheableRequestPolicy = cacheableRequestPolicy;
-<a class="jxr_linenumber" name="181" href="#181">181</a>         <strong class="jxr_keyword">this</strong>.suitabilityChecker = suitabilityChecker;
-<a class="jxr_linenumber" name="182" href="#182">182</a>         <strong class="jxr_keyword">this</strong>.conditionalRequestBuilder = conditionalRequestBuilder;
-<a class="jxr_linenumber" name="183" href="#183">183</a>         <strong class="jxr_keyword">this</strong>.responseCompliance = responseCompliance;
-<a class="jxr_linenumber" name="184" href="#184">184</a>         <strong class="jxr_keyword">this</strong>.requestCompliance = requestCompliance;
-<a class="jxr_linenumber" name="185" href="#185">185</a>         <strong class="jxr_keyword">this</strong>.asynchRevalidator = asynchRevalidator;
-<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>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="189" href="#189">189</a> <em class="jxr_javadoccomment">     * Reports the number of times that the cache successfully responded</em>
-<a class="jxr_linenumber" name="190" href="#190">190</a> <em class="jxr_javadoccomment">     * to an {@link HttpRequest} without contacting the origin server.</em>
-<a class="jxr_linenumber" name="191" href="#191">191</a> <em class="jxr_javadoccomment">     * @return the number of cache hits</em>
-<a class="jxr_linenumber" name="192" href="#192">192</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="193" href="#193">193</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getCacheHits() {
-<a class="jxr_linenumber" name="194" href="#194">194</a>         <strong class="jxr_keyword">return</strong> cacheHits.get();
-<a class="jxr_linenumber" name="195" href="#195">195</a>     }
-<a class="jxr_linenumber" name="196" href="#196">196</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">     * Reports the number of times that the cache contacted the origin</em>
-<a class="jxr_linenumber" name="199" href="#199">199</a> <em class="jxr_javadoccomment">     * server because it had no appropriate response cached.</em>
-<a class="jxr_linenumber" name="200" href="#200">200</a> <em class="jxr_javadoccomment">     * @return the number of cache misses</em>
-<a class="jxr_linenumber" name="201" href="#201">201</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="202" href="#202">202</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getCacheMisses() {
-<a class="jxr_linenumber" name="203" href="#203">203</a>         <strong class="jxr_keyword">return</strong> cacheMisses.get();
-<a class="jxr_linenumber" name="204" href="#204">204</a>     }
-<a class="jxr_linenumber" name="205" href="#205">205</a> 
-<a class="jxr_linenumber" name="206" href="#206">206</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="207" href="#207">207</a> <em class="jxr_javadoccomment">     * Reports the number of times that the cache was able to satisfy</em>
-<a class="jxr_linenumber" name="208" href="#208">208</a> <em class="jxr_javadoccomment">     * a response by revalidating an existing but stale cache entry.</em>
-<a class="jxr_linenumber" name="209" href="#209">209</a> <em class="jxr_javadoccomment">     * @return the number of cache revalidations</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>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getCacheUpdates() {
-<a class="jxr_linenumber" name="212" href="#212">212</a>         <strong class="jxr_keyword">return</strong> cacheUpdates.get();
-<a class="jxr_linenumber" name="213" href="#213">213</a>     }
-<a class="jxr_linenumber" name="214" href="#214">214</a> 
-<a class="jxr_linenumber" name="215" href="#215">215</a>     <strong class="jxr_keyword">public</strong> CloseableHttpResponse execute(
-<a class="jxr_linenumber" name="216" href="#216">216</a>             <strong class="jxr_keyword">final</strong> HttpRoute route,
-<a class="jxr_linenumber" name="217" href="#217">217</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request) <strong class="jxr_keyword">throws</strong> IOException, HttpException {
-<a class="jxr_linenumber" name="218" href="#218">218</a>         <strong class="jxr_keyword">return</strong> execute(route, request, HttpClientContext.create(), <strong class="jxr_keyword">null</strong>);
-<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>     <strong class="jxr_keyword">public</strong> CloseableHttpResponse execute(
-<a class="jxr_linenumber" name="222" href="#222">222</a>             <strong class="jxr_keyword">final</strong> HttpRoute route,
-<a class="jxr_linenumber" name="223" href="#223">223</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="224" href="#224">224</a>             <strong class="jxr_keyword">final</strong> HttpClientContext context) <strong class="jxr_keyword">throws</strong> IOException, HttpException {
-<a class="jxr_linenumber" name="225" href="#225">225</a>         <strong class="jxr_keyword">return</strong> execute(route, request, context, <strong class="jxr_keyword">null</strong>);
-<a class="jxr_linenumber" name="226" href="#226">226</a>     }
-<a class="jxr_linenumber" name="227" href="#227">227</a> 
-<a class="jxr_linenumber" name="228" href="#228">228</a>     <strong class="jxr_keyword">public</strong> CloseableHttpResponse execute(
-<a class="jxr_linenumber" name="229" href="#229">229</a>             <strong class="jxr_keyword">final</strong> HttpRoute route,
-<a class="jxr_linenumber" name="230" href="#230">230</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="231" href="#231">231</a>             <strong class="jxr_keyword">final</strong> HttpClientContext context,
-<a class="jxr_linenumber" name="232" href="#232">232</a>             <strong class="jxr_keyword">final</strong> HttpExecutionAware execAware) <strong class="jxr_keyword">throws</strong> IOException, HttpException {
-<a class="jxr_linenumber" name="233" href="#233">233</a> 
-<a class="jxr_linenumber" name="234" href="#234">234</a>         <strong class="jxr_keyword">final</strong> HttpHost target = context.getTargetHost();
-<a class="jxr_linenumber" name="235" href="#235">235</a>         <strong class="jxr_keyword">final</strong> String via = generateViaHeader(request.getOriginal());
-<a class="jxr_linenumber" name="236" href="#236">236</a> 
-<a class="jxr_linenumber" name="237" href="#237">237</a>         <em class="jxr_comment">// default response context</em>
-<a class="jxr_linenumber" name="238" href="#238">238</a>         setResponseStatus(context, CacheResponseStatus.CACHE_MISS);
-<a class="jxr_linenumber" name="239" href="#239">239</a> 
-<a class="jxr_linenumber" name="240" href="#240">240</a>         <strong class="jxr_keyword">if</strong> (clientRequestsOurOptions(request)) {
-<a class="jxr_linenumber" name="241" href="#241">241</a>             setResponseStatus(context, CacheResponseStatus.CACHE_MODULE_RESPONSE);
-<a class="jxr_linenumber" name="242" href="#242">242</a>             <strong class="jxr_keyword">return</strong> Proxies.enhanceResponse(<strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/http/impl/client/cache/OptionsHttp11Response.html">OptionsHttp11Response</a>());
-<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">final</strong> HttpResponse fatalErrorResponse = getFatallyNoncompliantResponse(request, context);
-<a class="jxr_linenumber" name="246" href="#246">246</a>         <strong class="jxr_keyword">if</strong> (fatalErrorResponse != <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="247" href="#247">247</a>             <strong class="jxr_keyword">return</strong> Proxies.enhanceResponse(fatalErrorResponse);
-<a class="jxr_linenumber" name="248" href="#248">248</a>         }
-<a class="jxr_linenumber" name="249" href="#249">249</a> 
-<a class="jxr_linenumber" name="250" href="#250">250</a>         requestCompliance.makeRequestCompliant(request);
-<a class="jxr_linenumber" name="251" href="#251">251</a>         request.addHeader(<span class="jxr_string">"Via"</span>,via);
-<a class="jxr_linenumber" name="252" href="#252">252</a> 
-<a class="jxr_linenumber" name="253" href="#253">253</a>         flushEntriesInvalidatedByRequest(context.getTargetHost(), request);
-<a class="jxr_linenumber" name="254" href="#254">254</a> 
-<a class="jxr_linenumber" name="255" href="#255">255</a>         <strong class="jxr_keyword">if</strong> (!cacheableRequestPolicy.isServableFromCache(request)) {
-<a class="jxr_linenumber" name="256" href="#256">256</a>             log.debug(<span class="jxr_string">"Request is not servable from cache"</span>);
-<a class="jxr_linenumber" name="257" href="#257">257</a>             <strong class="jxr_keyword">return</strong> callBackend(route, request, context, execAware);
-<a class="jxr_linenumber" name="258" href="#258">258</a>         }
-<a class="jxr_linenumber" name="259" href="#259">259</a> 
-<a class="jxr_linenumber" name="260" href="#260">260</a>         <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> entry = satisfyFromCache(target, request);
-<a class="jxr_linenumber" name="261" href="#261">261</a>         <strong class="jxr_keyword">if</strong> (entry == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="262" href="#262">262</a>             log.debug(<span class="jxr_string">"Cache miss"</span>);
-<a class="jxr_linenumber" name="263" href="#263">263</a>             <strong class="jxr_keyword">return</strong> handleCacheMiss(route, request, context, execAware);
-<a class="jxr_linenumber" name="264" href="#264">264</a>         } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="265" href="#265">265</a>             <strong class="jxr_keyword">return</strong> handleCacheHit(route, request, context, execAware, entry);
-<a class="jxr_linenumber" name="266" href="#266">266</a>         }
-<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">private</strong> CloseableHttpResponse handleCacheHit(
-<a class="jxr_linenumber" name="270" href="#270">270</a>             <strong class="jxr_keyword">final</strong> HttpRoute route,
-<a class="jxr_linenumber" name="271" href="#271">271</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="272" href="#272">272</a>             <strong class="jxr_keyword">final</strong> HttpClientContext context,
-<a class="jxr_linenumber" name="273" href="#273">273</a>             <strong class="jxr_keyword">final</strong> HttpExecutionAware execAware,
-<a class="jxr_linenumber" name="274" href="#274">274</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> entry) <strong class="jxr_keyword">throws</strong> IOException, HttpException {
-<a class="jxr_linenumber" name="275" href="#275">275</a>         <strong class="jxr_keyword">final</strong> HttpHost target = context.getTargetHost();
-<a class="jxr_linenumber" name="276" href="#276">276</a>         recordCacheHit(target, request);
-<a class="jxr_linenumber" name="277" href="#277">277</a>         CloseableHttpResponse out = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="278" href="#278">278</a>         <strong class="jxr_keyword">final</strong> Date now = getCurrentDate();
-<a class="jxr_linenumber" name="279" href="#279">279</a>         <strong class="jxr_keyword">if</strong> (suitabilityChecker.canCachedResponseBeUsed(target, request, entry, now)) {
-<a class="jxr_linenumber" name="280" href="#280">280</a>             log.debug(<span class="jxr_string">"Cache hit"</span>);
-<a class="jxr_linenumber" name="281" href="#281">281</a>             out = generateCachedResponse(request, context, entry, now);
-<a class="jxr_linenumber" name="282" href="#282">282</a>         } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (!mayCallBackend(request)) {
-<a class="jxr_linenumber" name="283" href="#283">283</a>             log.debug(<span class="jxr_string">"Cache entry not suitable but only-if-cached requested"</span>);
-<a class="jxr_linenumber" name="284" href="#284">284</a>             out = generateGatewayTimeout(context);
-<a class="jxr_linenumber" name="285" href="#285">285</a>         } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (!(entry.getStatusCode() == HttpStatus.SC_NOT_MODIFIED
-<a class="jxr_linenumber" name="286" href="#286">286</a>                 &amp;&amp; !suitabilityChecker.isConditional(request))) {
-<a class="jxr_linenumber" name="287" href="#287">287</a>             log.debug(<span class="jxr_string">"Revalidating cache entry"</span>);
-<a class="jxr_linenumber" name="288" href="#288">288</a>             <strong class="jxr_keyword">return</strong> revalidateCacheEntry(route, request, context, execAware, entry, now);
-<a class="jxr_linenumber" name="289" href="#289">289</a>         } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="290" href="#290">290</a>             log.debug(<span class="jxr_string">"Cache entry not usable; calling backend"</span>);
-<a class="jxr_linenumber" name="291" href="#291">291</a>             <strong class="jxr_keyword">return</strong> callBackend(route, request, context, execAware);
-<a class="jxr_linenumber" name="292" href="#292">292</a>         }
-<a class="jxr_linenumber" name="293" href="#293">293</a>         context.setAttribute(HttpClientContext.HTTP_ROUTE, route);
-<a class="jxr_linenumber" name="294" href="#294">294</a>         context.setAttribute(HttpClientContext.HTTP_TARGET_HOST, target);
-<a class="jxr_linenumber" name="295" href="#295">295</a>         context.setAttribute(HttpClientContext.HTTP_REQUEST, request);
-<a class="jxr_linenumber" name="296" href="#296">296</a>         context.setAttribute(HttpClientContext.HTTP_RESPONSE, out);
-<a class="jxr_linenumber" name="297" href="#297">297</a>         context.setAttribute(HttpClientContext.HTTP_REQ_SENT, Boolean.TRUE);
-<a class="jxr_linenumber" name="298" href="#298">298</a>         <strong class="jxr_keyword">return</strong> out;
-<a class="jxr_linenumber" name="299" href="#299">299</a>     }
-<a class="jxr_linenumber" name="300" href="#300">300</a> 
-<a class="jxr_linenumber" name="301" href="#301">301</a>     <strong class="jxr_keyword">private</strong> CloseableHttpResponse revalidateCacheEntry(
-<a class="jxr_linenumber" name="302" href="#302">302</a>             <strong class="jxr_keyword">final</strong> HttpRoute route,
-<a class="jxr_linenumber" name="303" href="#303">303</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="304" href="#304">304</a>             <strong class="jxr_keyword">final</strong> HttpClientContext context,
-<a class="jxr_linenumber" name="305" href="#305">305</a>             <strong class="jxr_keyword">final</strong> HttpExecutionAware execAware,
-<a class="jxr_linenumber" name="306" href="#306">306</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> entry,
-<a class="jxr_linenumber" name="307" href="#307">307</a>             <strong class="jxr_keyword">final</strong> Date now) <strong class="jxr_keyword">throws</strong> HttpException {
-<a class="jxr_linenumber" name="308" href="#308">308</a> 
-<a class="jxr_linenumber" name="309" href="#309">309</a>         <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="310" href="#310">310</a>             <strong class="jxr_keyword">if</strong> (asynchRevalidator != <strong class="jxr_keyword">null</strong>
-<a class="jxr_linenumber" name="311" href="#311">311</a>                 &amp;&amp; !staleResponseNotAllowed(request, entry, now)
-<a class="jxr_linenumber" name="312" href="#312">312</a>                 &amp;&amp; validityPolicy.mayReturnStaleWhileRevalidating(entry, now)) {
-<a class="jxr_linenumber" name="313" href="#313">313</a>                 log.trace(<span class="jxr_string">"Serving stale with asynchronous revalidation"</span>);
-<a class="jxr_linenumber" name="314" href="#314">314</a>                 <strong class="jxr_keyword">final</strong> CloseableHttpResponse resp = generateCachedResponse(request, context, entry, now);
-<a class="jxr_linenumber" name="315" href="#315">315</a>                 asynchRevalidator.revalidateCacheEntry(<strong class="jxr_keyword">this</strong>, route, request, context, execAware, entry);
-<a class="jxr_linenumber" name="316" href="#316">316</a>                 <strong class="jxr_keyword">return</strong> resp;
-<a class="jxr_linenumber" name="317" href="#317">317</a>             }
-<a class="jxr_linenumber" name="318" href="#318">318</a>             <strong class="jxr_keyword">return</strong> revalidateCacheEntry(route, request, context, execAware, entry);
-<a class="jxr_linenumber" name="319" href="#319">319</a>         } <strong class="jxr_keyword">catch</strong> (<strong class="jxr_keyword">final</strong> IOException ioex) {
-<a class="jxr_linenumber" name="320" href="#320">320</a>             <strong class="jxr_keyword">return</strong> handleRevalidationFailure(request, context, entry, now);
-<a class="jxr_linenumber" name="321" href="#321">321</a>         }
-<a class="jxr_linenumber" name="322" href="#322">322</a>     }
-<a class="jxr_linenumber" name="323" href="#323">323</a> 
-<a class="jxr_linenumber" name="324" href="#324">324</a>     <strong class="jxr_keyword">private</strong> CloseableHttpResponse handleCacheMiss(
-<a class="jxr_linenumber" name="325" href="#325">325</a>             <strong class="jxr_keyword">final</strong> HttpRoute route,
-<a class="jxr_linenumber" name="326" href="#326">326</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="327" href="#327">327</a>             <strong class="jxr_keyword">final</strong> HttpClientContext context,
-<a class="jxr_linenumber" name="328" href="#328">328</a>             <strong class="jxr_keyword">final</strong> HttpExecutionAware execAware) <strong class="jxr_keyword">throws</strong> IOException, HttpException {
-<a class="jxr_linenumber" name="329" href="#329">329</a>         <strong class="jxr_keyword">final</strong> HttpHost target = context.getTargetHost();
-<a class="jxr_linenumber" name="330" href="#330">330</a>         recordCacheMiss(target, request);
-<a class="jxr_linenumber" name="331" href="#331">331</a> 
-<a class="jxr_linenumber" name="332" href="#332">332</a>         <strong class="jxr_keyword">if</strong> (!mayCallBackend(request)) {
-<a class="jxr_linenumber" name="333" href="#333">333</a>             <strong class="jxr_keyword">return</strong> Proxies.enhanceResponse(
-<a class="jxr_linenumber" name="334" href="#334">334</a>                     <strong class="jxr_keyword">new</strong> BasicHttpResponse(
-<a class="jxr_linenumber" name="335" href="#335">335</a>                             HttpVersion.HTTP_1_1, HttpStatus.SC_GATEWAY_TIMEOUT, <span class="jxr_string">"Gateway Timeout"</span>));
-<a class="jxr_linenumber" name="336" href="#336">336</a>         }
-<a class="jxr_linenumber" name="337" href="#337">337</a> 
-<a class="jxr_linenumber" name="338" href="#338">338</a>         <strong class="jxr_keyword">final</strong> Map&lt;String, Variant&gt; variants = getExistingCacheVariants(target, request);
-<a class="jxr_linenumber" name="339" href="#339">339</a>         <strong class="jxr_keyword">if</strong> (variants != <strong class="jxr_keyword">null</strong> &amp;&amp; variants.size() &gt; 0) {
-<a class="jxr_linenumber" name="340" href="#340">340</a>             <strong class="jxr_keyword">return</strong> negotiateResponseFromVariants(route, request, context,
-<a class="jxr_linenumber" name="341" href="#341">341</a>                     execAware, variants);
-<a class="jxr_linenumber" name="342" href="#342">342</a>         }
-<a class="jxr_linenumber" name="343" href="#343">343</a> 
-<a class="jxr_linenumber" name="344" href="#344">344</a>         <strong class="jxr_keyword">return</strong> callBackend(route, request, context, execAware);
-<a class="jxr_linenumber" name="345" href="#345">345</a>     }
-<a class="jxr_linenumber" name="346" href="#346">346</a> 
-<a class="jxr_linenumber" name="347" href="#347">347</a>     <strong class="jxr_keyword">private</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> satisfyFromCache(
-<a class="jxr_linenumber" name="348" href="#348">348</a>             <strong class="jxr_keyword">final</strong> HttpHost target, <strong class="jxr_keyword">final</strong> HttpRequestWrapper request) {
-<a class="jxr_linenumber" name="349" href="#349">349</a>         <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> entry = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="350" href="#350">350</a>         <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="351" href="#351">351</a>             entry = responseCache.getCacheEntry(target, request);
-<a class="jxr_linenumber" name="352" href="#352">352</a>         } <strong class="jxr_keyword">catch</strong> (<strong class="jxr_keyword">final</strong> IOException ioe) {
-<a class="jxr_linenumber" name="353" href="#353">353</a>             log.warn(<span class="jxr_string">"Unable to retrieve entries from cache"</span>, ioe);
-<a class="jxr_linenumber" name="354" href="#354">354</a>         }
-<a class="jxr_linenumber" name="355" href="#355">355</a>         <strong class="jxr_keyword">return</strong> entry;
-<a class="jxr_linenumber" name="356" href="#356">356</a>     }
-<a class="jxr_linenumber" name="357" href="#357">357</a> 
-<a class="jxr_linenumber" name="358" href="#358">358</a>     <strong class="jxr_keyword">private</strong> HttpResponse getFatallyNoncompliantResponse(
-<a class="jxr_linenumber" name="359" href="#359">359</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="360" href="#360">360</a>             <strong class="jxr_keyword">final</strong> HttpContext context) {
-<a class="jxr_linenumber" name="361" href="#361">361</a>         HttpResponse fatalErrorResponse = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="362" href="#362">362</a>         <strong class="jxr_keyword">final</strong> List&lt;RequestProtocolError&gt; fatalError = requestCompliance.requestIsFatallyNonCompliant(request);
-<a class="jxr_linenumber" name="363" href="#363">363</a> 
-<a class="jxr_linenumber" name="364" href="#364">364</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> RequestProtocolError error : fatalError) {
-<a class="jxr_linenumber" name="365" href="#365">365</a>             setResponseStatus(context, CacheResponseStatus.CACHE_MODULE_RESPONSE);
-<a class="jxr_linenumber" name="366" href="#366">366</a>             fatalErrorResponse = requestCompliance.getErrorForRequest(error);
-<a class="jxr_linenumber" name="367" href="#367">367</a>         }
-<a class="jxr_linenumber" name="368" href="#368">368</a>         <strong class="jxr_keyword">return</strong> fatalErrorResponse;
-<a class="jxr_linenumber" name="369" href="#369">369</a>     }
-<a class="jxr_linenumber" name="370" href="#370">370</a> 
-<a class="jxr_linenumber" name="371" href="#371">371</a>     <strong class="jxr_keyword">private</strong> Map&lt;String, Variant&gt; getExistingCacheVariants(
-<a class="jxr_linenumber" name="372" href="#372">372</a>             <strong class="jxr_keyword">final</strong> HttpHost target,
-<a class="jxr_linenumber" name="373" href="#373">373</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request) {
-<a class="jxr_linenumber" name="374" href="#374">374</a>         Map&lt;String,Variant&gt; variants = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="375" href="#375">375</a>         <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="376" href="#376">376</a>             variants = responseCache.getVariantCacheEntriesWithEtags(target, request);
-<a class="jxr_linenumber" name="377" href="#377">377</a>         } <strong class="jxr_keyword">catch</strong> (<strong class="jxr_keyword">final</strong> IOException ioe) {
-<a class="jxr_linenumber" name="378" href="#378">378</a>             log.warn(<span class="jxr_string">"Unable to retrieve variant entries from cache"</span>, ioe);
-<a class="jxr_linenumber" name="379" href="#379">379</a>         }
-<a class="jxr_linenumber" name="380" href="#380">380</a>         <strong class="jxr_keyword">return</strong> variants;
-<a class="jxr_linenumber" name="381" href="#381">381</a>     }
-<a class="jxr_linenumber" name="382" href="#382">382</a> 
-<a class="jxr_linenumber" name="383" href="#383">383</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> recordCacheMiss(<strong class="jxr_keyword">final</strong> HttpHost target, <strong class="jxr_keyword">final</strong> HttpRequestWrapper request) {
-<a class="jxr_linenumber" name="384" href="#384">384</a>         cacheMisses.getAndIncrement();
-<a class="jxr_linenumber" name="385" href="#385">385</a>         <strong class="jxr_keyword">if</strong> (log.isTraceEnabled()) {
-<a class="jxr_linenumber" name="386" href="#386">386</a>             <strong class="jxr_keyword">final</strong> RequestLine rl = request.getRequestLine();
-<a class="jxr_linenumber" name="387" href="#387">387</a>             log.trace(<span class="jxr_string">"Cache miss [host: "</span> + target + <span class="jxr_string">"; uri: "</span> + rl.getUri() + <span class="jxr_string">"]"</span>);
-<a class="jxr_linenumber" name="388" href="#388">388</a>         }
-<a class="jxr_linenumber" name="389" href="#389">389</a>     }
-<a class="jxr_linenumber" name="390" href="#390">390</a> 
-<a class="jxr_linenumber" name="391" href="#391">391</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> recordCacheHit(<strong class="jxr_keyword">final</strong> HttpHost target, <strong class="jxr_keyword">final</strong> HttpRequestWrapper request) {
-<a class="jxr_linenumber" name="392" href="#392">392</a>         cacheHits.getAndIncrement();
-<a class="jxr_linenumber" name="393" href="#393">393</a>         <strong class="jxr_keyword">if</strong> (log.isTraceEnabled()) {
-<a class="jxr_linenumber" name="394" href="#394">394</a>             <strong class="jxr_keyword">final</strong> RequestLine rl = request.getRequestLine();
-<a class="jxr_linenumber" name="395" href="#395">395</a>             log.trace(<span class="jxr_string">"Cache hit [host: "</span> + target + <span class="jxr_string">"; uri: "</span> + rl.getUri() + <span class="jxr_string">"]"</span>);
-<a class="jxr_linenumber" name="396" href="#396">396</a>         }
-<a class="jxr_linenumber" name="397" href="#397">397</a>     }
-<a class="jxr_linenumber" name="398" href="#398">398</a> 
-<a class="jxr_linenumber" name="399" href="#399">399</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> recordCacheUpdate(<strong class="jxr_keyword">final</strong> HttpContext context) {
-<a class="jxr_linenumber" name="400" href="#400">400</a>         cacheUpdates.getAndIncrement();
-<a class="jxr_linenumber" name="401" href="#401">401</a>         setResponseStatus(context, CacheResponseStatus.VALIDATED);
-<a class="jxr_linenumber" name="402" href="#402">402</a>     }
-<a class="jxr_linenumber" name="403" href="#403">403</a> 
-<a class="jxr_linenumber" name="404" href="#404">404</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> flushEntriesInvalidatedByRequest(
-<a class="jxr_linenumber" name="405" href="#405">405</a>             <strong class="jxr_keyword">final</strong> HttpHost target,
-<a class="jxr_linenumber" name="406" href="#406">406</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request) {
-<a class="jxr_linenumber" name="407" href="#407">407</a>         <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="408" href="#408">408</a>             responseCache.flushInvalidatedCacheEntriesFor(target, request);
-<a class="jxr_linenumber" name="409" href="#409">409</a>         } <strong class="jxr_keyword">catch</strong> (<strong class="jxr_keyword">final</strong> IOException ioe) {
-<a class="jxr_linenumber" name="410" href="#410">410</a>             log.warn(<span class="jxr_string">"Unable to flush invalidated entries from cache"</span>, ioe);
-<a class="jxr_linenumber" name="411" href="#411">411</a>         }
-<a class="jxr_linenumber" name="412" href="#412">412</a>     }
-<a class="jxr_linenumber" name="413" href="#413">413</a> 
-<a class="jxr_linenumber" name="414" href="#414">414</a>     <strong class="jxr_keyword">private</strong> CloseableHttpResponse generateCachedResponse(<strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="415" href="#415">415</a>             <strong class="jxr_keyword">final</strong> HttpContext context, <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> entry, <strong class="jxr_keyword">final</strong> Date now) {
-<a class="jxr_linenumber" name="416" href="#416">416</a>         <strong class="jxr_keyword">final</strong> CloseableHttpResponse cachedResponse;
-<a class="jxr_linenumber" name="417" href="#417">417</a>         <strong class="jxr_keyword">if</strong> (request.containsHeader(HeaderConstants.IF_NONE_MATCH)
-<a class="jxr_linenumber" name="418" href="#418">418</a>                 || request.containsHeader(HeaderConstants.IF_MODIFIED_SINCE)) {
-<a class="jxr_linenumber" name="419" href="#419">419</a>             cachedResponse = responseGenerator.generateNotModifiedResponse(entry);
-<a class="jxr_linenumber" name="420" href="#420">420</a>         } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="421" href="#421">421</a>             cachedResponse = responseGenerator.generateResponse(entry);
-<a class="jxr_linenumber" name="422" href="#422">422</a>         }
-<a class="jxr_linenumber" name="423" href="#423">423</a>         setResponseStatus(context, CacheResponseStatus.CACHE_HIT);
-<a class="jxr_linenumber" name="424" href="#424">424</a>         <strong class="jxr_keyword">if</strong> (validityPolicy.getStalenessSecs(entry, now) &gt; 0L) {
-<a class="jxr_linenumber" name="425" href="#425">425</a>             cachedResponse.addHeader(HeaderConstants.WARNING,<span class="jxr_string">"110 localhost \&quot;Response is stale\&quot;"</span>);
-<a class="jxr_linenumber" name="426" href="#426">426</a>         }
-<a class="jxr_linenumber" name="427" href="#427">427</a>         <strong class="jxr_keyword">return</strong> cachedResponse;
-<a class="jxr_linenumber" name="428" href="#428">428</a>     }
-<a class="jxr_linenumber" name="429" href="#429">429</a> 
-<a class="jxr_linenumber" name="430" href="#430">430</a>     <strong class="jxr_keyword">private</strong> CloseableHttpResponse handleRevalidationFailure(
-<a class="jxr_linenumber" name="431" href="#431">431</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="432" href="#432">432</a>             <strong class="jxr_keyword">final</strong> HttpContext context,
-<a class="jxr_linenumber" name="433" href="#433">433</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> entry,
-<a class="jxr_linenumber" name="434" href="#434">434</a>             <strong class="jxr_keyword">final</strong> Date now) {
-<a class="jxr_linenumber" name="435" href="#435">435</a>         <strong class="jxr_keyword">if</strong> (staleResponseNotAllowed(request, entry, now)) {
-<a class="jxr_linenumber" name="436" href="#436">436</a>             <strong class="jxr_keyword">return</strong> generateGatewayTimeout(context);
-<a class="jxr_linenumber" name="437" href="#437">437</a>         } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="438" href="#438">438</a>             <strong class="jxr_keyword">return</strong> unvalidatedCacheHit(context, entry);
-<a class="jxr_linenumber" name="439" href="#439">439</a>         }
-<a class="jxr_linenumber" name="440" href="#440">440</a>     }
-<a class="jxr_linenumber" name="441" href="#441">441</a> 
-<a class="jxr_linenumber" name="442" href="#442">442</a>     <strong class="jxr_keyword">private</strong> CloseableHttpResponse generateGatewayTimeout(
-<a class="jxr_linenumber" name="443" href="#443">443</a>             <strong class="jxr_keyword">final</strong> HttpContext context) {
-<a class="jxr_linenumber" name="444" href="#444">444</a>         setResponseStatus(context, CacheResponseStatus.CACHE_MODULE_RESPONSE);
-<a class="jxr_linenumber" name="445" href="#445">445</a>         <strong class="jxr_keyword">return</strong> Proxies.enhanceResponse(<strong class="jxr_keyword">new</strong> BasicHttpResponse(
-<a class="jxr_linenumber" name="446" href="#446">446</a>                 HttpVersion.HTTP_1_1, HttpStatus.SC_GATEWAY_TIMEOUT,
-<a class="jxr_linenumber" name="447" href="#447">447</a>                 <span class="jxr_string">"Gateway Timeout"</span>));
-<a class="jxr_linenumber" name="448" href="#448">448</a>     }
-<a class="jxr_linenumber" name="449" href="#449">449</a> 
-<a class="jxr_linenumber" name="450" href="#450">450</a>     <strong class="jxr_keyword">private</strong> CloseableHttpResponse unvalidatedCacheHit(
-<a class="jxr_linenumber" name="451" href="#451">451</a>             <strong class="jxr_keyword">final</strong> HttpContext context, <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> entry) {
-<a class="jxr_linenumber" name="452" href="#452">452</a>         <strong class="jxr_keyword">final</strong> CloseableHttpResponse cachedResponse = responseGenerator.generateResponse(entry);
-<a class="jxr_linenumber" name="453" href="#453">453</a>         setResponseStatus(context, CacheResponseStatus.CACHE_HIT);
-<a class="jxr_linenumber" name="454" href="#454">454</a>         cachedResponse.addHeader(HeaderConstants.WARNING, <span class="jxr_string">"111 localhost \&quot;Revalidation failed\&quot;"</span>);
-<a class="jxr_linenumber" name="455" href="#455">455</a>         <strong class="jxr_keyword">return</strong> cachedResponse;
-<a class="jxr_linenumber" name="456" href="#456">456</a>     }
-<a class="jxr_linenumber" name="457" href="#457">457</a> 
-<a class="jxr_linenumber" name="458" href="#458">458</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> staleResponseNotAllowed(
-<a class="jxr_linenumber" name="459" href="#459">459</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="460" href="#460">460</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> entry,
-<a class="jxr_linenumber" name="461" href="#461">461</a>             <strong class="jxr_keyword">final</strong> Date now) {
-<a class="jxr_linenumber" name="462" href="#462">462</a>         <strong class="jxr_keyword">return</strong> validityPolicy.mustRevalidate(entry)
-<a class="jxr_linenumber" name="463" href="#463">463</a>             || (cacheConfig.isSharedCache() &amp;&amp; validityPolicy.proxyRevalidate(entry))
-<a class="jxr_linenumber" name="464" href="#464">464</a>             || explicitFreshnessRequest(request, entry, now);
-<a class="jxr_linenumber" name="465" href="#465">465</a>     }
-<a class="jxr_linenumber" name="466" href="#466">466</a> 
-<a class="jxr_linenumber" name="467" href="#467">467</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> mayCallBackend(<strong class="jxr_keyword">final</strong> HttpRequestWrapper request) {
-<a class="jxr_linenumber" name="468" href="#468">468</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> Header h: request.getHeaders(HeaderConstants.CACHE_CONTROL)) {
-<a class="jxr_linenumber" name="469" href="#469">469</a>             <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> HeaderElement elt : h.getElements()) {
-<a class="jxr_linenumber" name="470" href="#470">470</a>                 <strong class="jxr_keyword">if</strong> (<span class="jxr_string">"only-if-cached"</span>.equals(elt.getName())) {
-<a class="jxr_linenumber" name="471" href="#471">471</a>                     log.trace(<span class="jxr_string">"Request marked only-if-cached"</span>);
-<a class="jxr_linenumber" name="472" href="#472">472</a>                     <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="473" href="#473">473</a>                 }
-<a class="jxr_linenumber" name="474" href="#474">474</a>             }
-<a class="jxr_linenumber" name="475" href="#475">475</a>         }
-<a class="jxr_linenumber" name="476" href="#476">476</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="477" href="#477">477</a>     }
-<a class="jxr_linenumber" name="478" href="#478">478</a> 
-<a class="jxr_linenumber" name="479" href="#479">479</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> explicitFreshnessRequest(
-<a class="jxr_linenumber" name="480" href="#480">480</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="481" href="#481">481</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> entry,
-<a class="jxr_linenumber" name="482" href="#482">482</a>             <strong class="jxr_keyword">final</strong> Date now) {
-<a class="jxr_linenumber" name="483" href="#483">483</a>         <strong class="jxr_keyword">for</strong>(<strong class="jxr_keyword">final</strong> Header h : request.getHeaders(HeaderConstants.CACHE_CONTROL)) {
-<a class="jxr_linenumber" name="484" href="#484">484</a>             <strong class="jxr_keyword">for</strong>(<strong class="jxr_keyword">final</strong> HeaderElement elt : h.getElements()) {
-<a class="jxr_linenumber" name="485" href="#485">485</a>                 <strong class="jxr_keyword">if</strong> (HeaderConstants.CACHE_CONTROL_MAX_STALE.equals(elt.getName())) {
-<a class="jxr_linenumber" name="486" href="#486">486</a>                     <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="487" href="#487">487</a>                         <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> maxstale = Integer.parseInt(elt.getValue());
-<a class="jxr_linenumber" name="488" href="#488">488</a>                         <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> age = validityPolicy.getCurrentAgeSecs(entry, now);
-<a class="jxr_linenumber" name="489" href="#489">489</a>                         <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> lifetime = validityPolicy.getFreshnessLifetimeSecs(entry);
-<a class="jxr_linenumber" name="490" href="#490">490</a>                         <strong class="jxr_keyword">if</strong> (age - lifetime &gt; maxstale) {
-<a class="jxr_linenumber" name="491" href="#491">491</a>                             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="492" href="#492">492</a>                         }
-<a class="jxr_linenumber" name="493" href="#493">493</a>                     } <strong class="jxr_keyword">catch</strong> (<strong class="jxr_keyword">final</strong> NumberFormatException nfe) {
-<a class="jxr_linenumber" name="494" href="#494">494</a>                         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="495" href="#495">495</a>                     }
-<a class="jxr_linenumber" name="496" href="#496">496</a>                 } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (HeaderConstants.CACHE_CONTROL_MIN_FRESH.equals(elt.getName())
-<a class="jxr_linenumber" name="497" href="#497">497</a>                             || HeaderConstants.CACHE_CONTROL_MAX_AGE.equals(elt.getName())) {
-<a class="jxr_linenumber" name="498" href="#498">498</a>                     <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="499" href="#499">499</a>                 }
-<a class="jxr_linenumber" name="500" href="#500">500</a>             }
-<a class="jxr_linenumber" name="501" href="#501">501</a>         }
-<a class="jxr_linenumber" name="502" href="#502">502</a>         <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="503" href="#503">503</a>     }
-<a class="jxr_linenumber" name="504" href="#504">504</a> 
-<a class="jxr_linenumber" name="505" href="#505">505</a>     <strong class="jxr_keyword">private</strong> String generateViaHeader(<strong class="jxr_keyword">final</strong> HttpMessage msg) {
-<a class="jxr_linenumber" name="506" href="#506">506</a> 
-<a class="jxr_linenumber" name="507" href="#507">507</a>         <strong class="jxr_keyword">final</strong> ProtocolVersion pv = msg.getProtocolVersion();
-<a class="jxr_linenumber" name="508" href="#508">508</a>         <strong class="jxr_keyword">final</strong> String existingEntry = viaHeaders.get(pv);
-<a class="jxr_linenumber" name="509" href="#509">509</a>         <strong class="jxr_keyword">if</strong> (existingEntry != <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="510" href="#510">510</a>             <strong class="jxr_keyword">return</strong> existingEntry;
-<a class="jxr_linenumber" name="511" href="#511">511</a>         }
-<a class="jxr_linenumber" name="512" href="#512">512</a> 
-<a class="jxr_linenumber" name="513" href="#513">513</a>         <strong class="jxr_keyword">final</strong> VersionInfo vi = VersionInfo.loadVersionInfo(<span class="jxr_string">"org.apache.http.client"</span>, getClass().getClassLoader());
-<a class="jxr_linenumber" name="514" href="#514">514</a>         <strong class="jxr_keyword">final</strong> String release = (vi != <strong class="jxr_keyword">null</strong>) ? vi.getRelease() : VersionInfo.UNAVAILABLE;
-<a class="jxr_linenumber" name="515" href="#515">515</a> 
-<a class="jxr_linenumber" name="516" href="#516">516</a>         String value;
-<a class="jxr_linenumber" name="517" href="#517">517</a>         <strong class="jxr_keyword">if</strong> (<span class="jxr_string">"http"</span>.equalsIgnoreCase(pv.getProtocol())) {
-<a class="jxr_linenumber" name="518" href="#518">518</a>             value = String.format(<span class="jxr_string">"%d.%d localhost (Apache-HttpClient/%s (cache))"</span>, pv.getMajor(), pv.getMinor(),
-<a class="jxr_linenumber" name="519" href="#519">519</a>                     release);
-<a class="jxr_linenumber" name="520" href="#520">520</a>         } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="521" href="#521">521</a>             value = String.format(<span class="jxr_string">"%s/%d.%d localhost (Apache-HttpClient/%s (cache))"</span>, pv.getProtocol(), pv.getMajor(),
-<a class="jxr_linenumber" name="522" href="#522">522</a>                     pv.getMinor(), release);
-<a class="jxr_linenumber" name="523" href="#523">523</a>         }
-<a class="jxr_linenumber" name="524" href="#524">524</a>         viaHeaders.put(pv, value);
-<a class="jxr_linenumber" name="525" href="#525">525</a> 
-<a class="jxr_linenumber" name="526" href="#526">526</a>         <strong class="jxr_keyword">return</strong> value;
-<a class="jxr_linenumber" name="527" href="#527">527</a>     }
-<a class="jxr_linenumber" name="528" href="#528">528</a> 
-<a class="jxr_linenumber" name="529" href="#529">529</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> setResponseStatus(<strong class="jxr_keyword">final</strong> HttpContext context, <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/CacheResponseStatus.html">CacheResponseStatus</a> value) {
-<a class="jxr_linenumber" name="530" href="#530">530</a>         <strong class="jxr_keyword">if</strong> (context != <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="531" href="#531">531</a>             context.setAttribute(HttpCacheContext.CACHE_RESPONSE_STATUS, value);
-<a class="jxr_linenumber" name="532" href="#532">532</a>         }
-<a class="jxr_linenumber" name="533" href="#533">533</a>     }
-<a class="jxr_linenumber" name="534" href="#534">534</a> 
-<a class="jxr_linenumber" name="535" href="#535">535</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="536" href="#536">536</a> <em class="jxr_javadoccomment">     * Reports whether this {@code CachingHttpClient} implementation</em>
-<a class="jxr_linenumber" name="537" href="#537">537</a> <em class="jxr_javadoccomment">     * supports byte-range requests as specified by the {@code Range}</em>
-<a class="jxr_linenumber" name="538" href="#538">538</a> <em class="jxr_javadoccomment">     * and {@code Content-Range} headers.</em>
-<a class="jxr_linenumber" name="539" href="#539">539</a> <em class="jxr_javadoccomment">     * @return {@code true} if byte-range requests are supported</em>
-<a class="jxr_linenumber" name="540" href="#540">540</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="541" href="#541">541</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> supportsRangeAndContentRangeHeaders() {
-<a class="jxr_linenumber" name="542" href="#542">542</a>         <strong class="jxr_keyword">return</strong> SUPPORTS_RANGE_AND_CONTENT_RANGE_HEADERS;
-<a class="jxr_linenumber" name="543" href="#543">543</a>     }
-<a class="jxr_linenumber" name="544" href="#544">544</a> 
-<a class="jxr_linenumber" name="545" href="#545">545</a>     Date getCurrentDate() {
-<a class="jxr_linenumber" name="546" href="#546">546</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Date();
-<a class="jxr_linenumber" name="547" href="#547">547</a>     }
-<a class="jxr_linenumber" name="548" href="#548">548</a> 
-<a class="jxr_linenumber" name="549" href="#549">549</a>     <strong class="jxr_keyword">boolean</strong> clientRequestsOurOptions(<strong class="jxr_keyword">final</strong> HttpRequest request) {
-<a class="jxr_linenumber" name="550" href="#550">550</a>         <strong class="jxr_keyword">final</strong> RequestLine line = request.getRequestLine();
-<a class="jxr_linenumber" name="551" href="#551">551</a> 
-<a class="jxr_linenumber" name="552" href="#552">552</a>         <strong class="jxr_keyword">if</strong> (!HeaderConstants.OPTIONS_METHOD.equals(line.getMethod())) {
-<a class="jxr_linenumber" name="553" href="#553">553</a>             <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="554" href="#554">554</a>         }
-<a class="jxr_linenumber" name="555" href="#555">555</a> 
-<a class="jxr_linenumber" name="556" href="#556">556</a>         <strong class="jxr_keyword">if</strong> (!<span class="jxr_string">"*"</span>.equals(line.getUri())) {
-<a class="jxr_linenumber" name="557" href="#557">557</a>             <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="558" href="#558">558</a>         }
-<a class="jxr_linenumber" name="559" href="#559">559</a> 
-<a class="jxr_linenumber" name="560" href="#560">560</a>         <strong class="jxr_keyword">if</strong> (!<span class="jxr_string">"0"</span>.equals(request.getFirstHeader(HeaderConstants.MAX_FORWARDS).getValue())) {
-<a class="jxr_linenumber" name="561" href="#561">561</a>             <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="562" href="#562">562</a>         }
-<a class="jxr_linenumber" name="563" href="#563">563</a> 
-<a class="jxr_linenumber" name="564" href="#564">564</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="565" href="#565">565</a>     }
-<a class="jxr_linenumber" name="566" href="#566">566</a> 
-<a class="jxr_linenumber" name="567" href="#567">567</a>     CloseableHttpResponse callBackend(
-<a class="jxr_linenumber" name="568" href="#568">568</a>             <strong class="jxr_keyword">final</strong> HttpRoute route,
-<a class="jxr_linenumber" name="569" href="#569">569</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="570" href="#570">570</a>             <strong class="jxr_keyword">final</strong> HttpClientContext context,
-<a class="jxr_linenumber" name="571" href="#571">571</a>             <strong class="jxr_keyword">final</strong> HttpExecutionAware execAware) <strong class="jxr_keyword">throws</strong> IOException, HttpException  {
-<a class="jxr_linenumber" name="572" href="#572">572</a> 
-<a class="jxr_linenumber" name="573" href="#573">573</a>         <strong class="jxr_keyword">final</strong> Date requestDate = getCurrentDate();
-<a class="jxr_linenumber" name="574" href="#574">574</a> 
-<a class="jxr_linenumber" name="575" href="#575">575</a>         log.trace(<span class="jxr_string">"Calling the backend"</span>);
-<a class="jxr_linenumber" name="576" href="#576">576</a>         <strong class="jxr_keyword">final</strong> CloseableHttpResponse backendResponse = backend.execute(route, request, context, execAware);
-<a class="jxr_linenumber" name="577" href="#577">577</a>         <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="578" href="#578">578</a>             backendResponse.addHeader(<span class="jxr_string">"Via"</span>, generateViaHeader(backendResponse));
-<a class="jxr_linenumber" name="579" href="#579">579</a>             <strong class="jxr_keyword">return</strong> handleBackendResponse(route, request, context, execAware,
-<a class="jxr_linenumber" name="580" href="#580">580</a>                     requestDate, getCurrentDate(), backendResponse);
-<a class="jxr_linenumber" name="581" href="#581">581</a>         } <strong class="jxr_keyword">catch</strong> (<strong class="jxr_keyword">final</strong> IOException ex) {
-<a class="jxr_linenumber" name="582" href="#582">582</a>             backendResponse.close();
-<a class="jxr_linenumber" name="583" href="#583">583</a>             <strong class="jxr_keyword">throw</strong> ex;
-<a class="jxr_linenumber" name="584" href="#584">584</a>         } <strong class="jxr_keyword">catch</strong> (<strong class="jxr_keyword">final</strong> RuntimeException ex) {
-<a class="jxr_linenumber" name="585" href="#585">585</a>             backendResponse.close();
-<a class="jxr_linenumber" name="586" href="#586">586</a>             <strong class="jxr_keyword">throw</strong> ex;
-<a class="jxr_linenumber" name="587" href="#587">587</a>         }
-<a class="jxr_linenumber" name="588" href="#588">588</a>     }
-<a class="jxr_linenumber" name="589" href="#589">589</a> 
-<a class="jxr_linenumber" name="590" href="#590">590</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> revalidationResponseIsTooOld(<strong class="jxr_keyword">final</strong> HttpResponse backendResponse,
-<a class="jxr_linenumber" name="591" href="#591">591</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> cacheEntry) {
-<a class="jxr_linenumber" name="592" href="#592">592</a>         <strong class="jxr_keyword">final</strong> Header entryDateHeader = cacheEntry.getFirstHeader(HTTP.DATE_HEADER);
-<a class="jxr_linenumber" name="593" href="#593">593</a>         <strong class="jxr_keyword">final</strong> Header responseDateHeader = backendResponse.getFirstHeader(HTTP.DATE_HEADER);
-<a class="jxr_linenumber" name="594" href="#594">594</a>         <strong class="jxr_keyword">if</strong> (entryDateHeader != <strong class="jxr_keyword">null</strong> &amp;&amp; responseDateHeader != <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="595" href="#595">595</a>             <strong class="jxr_keyword">final</strong> Date entryDate = DateUtils.parseDate(entryDateHeader.getValue());
-<a class="jxr_linenumber" name="596" href="#596">596</a>             <strong class="jxr_keyword">final</strong> Date respDate = DateUtils.parseDate(responseDateHeader.getValue());
-<a class="jxr_linenumber" name="597" href="#597">597</a>             <strong class="jxr_keyword">if</strong> (entryDate == <strong class="jxr_keyword">null</strong> || respDate == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="598" href="#598">598</a>                 <em class="jxr_comment">// either backend response or cached entry did not have a valid</em>
-<a class="jxr_linenumber" name="599" href="#599">599</a>                 <em class="jxr_comment">// Date header, so we can't tell if they are out of order</em>
-<a class="jxr_linenumber" name="600" href="#600">600</a>                 <em class="jxr_comment">// according to the origin clock; thus we can skip the</em>
-<a class="jxr_linenumber" name="601" href="#601">601</a>                 <em class="jxr_comment">// unconditional retry recommended in 13.2.6 of RFC 2616.</em>
-<a class="jxr_linenumber" name="602" href="#602">602</a>                 <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="603" href="#603">603</a>             }
-<a class="jxr_linenumber" name="604" href="#604">604</a>             <strong class="jxr_keyword">if</strong> (respDate.before(entryDate)) {
-<a class="jxr_linenumber" name="605" href="#605">605</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="606" href="#606">606</a>             }
-<a class="jxr_linenumber" name="607" href="#607">607</a>         }
-<a class="jxr_linenumber" name="608" href="#608">608</a>         <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="609" href="#609">609</a>     }
-<a class="jxr_linenumber" name="610" href="#610">610</a> 
-<a class="jxr_linenumber" name="611" href="#611">611</a>     CloseableHttpResponse negotiateResponseFromVariants(
-<a class="jxr_linenumber" name="612" href="#612">612</a>             <strong class="jxr_keyword">final</strong> HttpRoute route,
-<a class="jxr_linenumber" name="613" href="#613">613</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="614" href="#614">614</a>             <strong class="jxr_keyword">final</strong> HttpClientContext context,
-<a class="jxr_linenumber" name="615" href="#615">615</a>             <strong class="jxr_keyword">final</strong> HttpExecutionAware execAware,
-<a class="jxr_linenumber" name="616" href="#616">616</a>             <strong class="jxr_keyword">final</strong> Map&lt;String, Variant&gt; variants) <strong class="jxr_keyword">throws</strong> IOException, HttpException {
-<a class="jxr_linenumber" name="617" href="#617">617</a>         <strong class="jxr_keyword">final</strong> HttpRequestWrapper conditionalRequest = conditionalRequestBuilder
-<a class="jxr_linenumber" name="618" href="#618">618</a>             .buildConditionalRequestFromVariants(request, variants);
-<a class="jxr_linenumber" name="619" href="#619">619</a> 
-<a class="jxr_linenumber" name="620" href="#620">620</a>         <strong class="jxr_keyword">final</strong> Date requestDate = getCurrentDate();
-<a class="jxr_linenumber" name="621" href="#621">621</a>         <strong class="jxr_keyword">final</strong> CloseableHttpResponse backendResponse = backend.execute(
-<a class="jxr_linenumber" name="622" href="#622">622</a>                 route, conditionalRequest, context, execAware);
-<a class="jxr_linenumber" name="623" href="#623">623</a>         <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="624" href="#624">624</a>             <strong class="jxr_keyword">final</strong> Date responseDate = getCurrentDate();
-<a class="jxr_linenumber" name="625" href="#625">625</a> 
-<a class="jxr_linenumber" name="626" href="#626">626</a>             backendResponse.addHeader(<span class="jxr_string">"Via"</span>, generateViaHeader(backendResponse));
-<a class="jxr_linenumber" name="627" href="#627">627</a> 
-<a class="jxr_linenumber" name="628" href="#628">628</a>             <strong class="jxr_keyword">if</strong> (backendResponse.getStatusLine().getStatusCode() != HttpStatus.SC_NOT_MODIFIED) {
-<a class="jxr_linenumber" name="629" href="#629">629</a>                 <strong class="jxr_keyword">return</strong> handleBackendResponse(
-<a class="jxr_linenumber" name="630" href="#630">630</a>                         route, request, context, execAware,
-<a class="jxr_linenumber" name="631" href="#631">631</a>                         requestDate, responseDate, backendResponse);
-<a class="jxr_linenumber" name="632" href="#632">632</a>             }
-<a class="jxr_linenumber" name="633" href="#633">633</a> 
-<a class="jxr_linenumber" name="634" href="#634">634</a>             <strong class="jxr_keyword">final</strong> Header resultEtagHeader = backendResponse.getFirstHeader(HeaderConstants.ETAG);
-<a class="jxr_linenumber" name="635" href="#635">635</a>             <strong class="jxr_keyword">if</strong> (resultEtagHeader == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="636" href="#636">636</a>                 log.warn(<span class="jxr_string">"304 response did not contain ETag"</span>);
-<a class="jxr_linenumber" name="637" href="#637">637</a>                 EntityUtils.consume(backendResponse.getEntity());
-<a class="jxr_linenumber" name="638" href="#638">638</a>                 backendResponse.close();
-<a class="jxr_linenumber" name="639" href="#639">639</a>                 <strong class="jxr_keyword">return</strong> callBackend(route, request, context, execAware);
-<a class="jxr_linenumber" name="640" href="#640">640</a>             }
-<a class="jxr_linenumber" name="641" href="#641">641</a> 
-<a class="jxr_linenumber" name="642" href="#642">642</a>             <strong class="jxr_keyword">final</strong> String resultEtag = resultEtagHeader.getValue();
-<a class="jxr_linenumber" name="643" href="#643">643</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/impl/client/cache/Variant.html">Variant</a> matchingVariant = variants.get(resultEtag);
-<a class="jxr_linenumber" name="644" href="#644">644</a>             <strong class="jxr_keyword">if</strong> (matchingVariant == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="645" href="#645">645</a>                 log.debug(<span class="jxr_string">"304 response did not contain ETag matching one sent in If-None-Match"</span>);
-<a class="jxr_linenumber" name="646" href="#646">646</a>                 EntityUtils.consume(backendResponse.getEntity());
-<a class="jxr_linenumber" name="647" href="#647">647</a>                 backendResponse.close();
-<a class="jxr_linenumber" name="648" href="#648">648</a>                 <strong class="jxr_keyword">return</strong> callBackend(route, request, context, execAware);
-<a class="jxr_linenumber" name="649" href="#649">649</a>             }
-<a class="jxr_linenumber" name="650" href="#650">650</a> 
-<a class="jxr_linenumber" name="651" href="#651">651</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> matchedEntry = matchingVariant.getEntry();
-<a class="jxr_linenumber" name="652" href="#652">652</a> 
-<a class="jxr_linenumber" name="653" href="#653">653</a>             <strong class="jxr_keyword">if</strong> (revalidationResponseIsTooOld(backendResponse, matchedEntry)) {
-<a class="jxr_linenumber" name="654" href="#654">654</a>                 EntityUtils.consume(backendResponse.getEntity());
-<a class="jxr_linenumber" name="655" href="#655">655</a>                 backendResponse.close();
-<a class="jxr_linenumber" name="656" href="#656">656</a>                 <strong class="jxr_keyword">return</strong> retryRequestUnconditionally(route, request, context, execAware, matchedEntry);
-<a class="jxr_linenumber" name="657" href="#657">657</a>             }
-<a class="jxr_linenumber" name="658" href="#658">658</a> 
-<a class="jxr_linenumber" name="659" href="#659">659</a>             recordCacheUpdate(context);
-<a class="jxr_linenumber" name="660" href="#660">660</a> 
-<a class="jxr_linenumber" name="661" href="#661">661</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> responseEntry = getUpdatedVariantEntry(
-<a class="jxr_linenumber" name="662" href="#662">662</a>                 context.getTargetHost(), conditionalRequest, requestDate, responseDate,
-<a class="jxr_linenumber" name="663" href="#663">663</a>                     backendResponse, matchingVariant, matchedEntry);
-<a class="jxr_linenumber" name="664" href="#664">664</a>             backendResponse.close();
-<a class="jxr_linenumber" name="665" href="#665">665</a> 
-<a class="jxr_linenumber" name="666" href="#666">666</a>             <strong class="jxr_keyword">final</strong> CloseableHttpResponse resp = responseGenerator.generateResponse(responseEntry);
-<a class="jxr_linenumber" name="667" href="#667">667</a>             tryToUpdateVariantMap(context.getTargetHost(), request, matchingVariant);
-<a class="jxr_linenumber" name="668" href="#668">668</a> 
-<a class="jxr_linenumber" name="669" href="#669">669</a>             <strong class="jxr_keyword">if</strong> (shouldSendNotModifiedResponse(request, responseEntry)) {
-<a class="jxr_linenumber" name="670" href="#670">670</a>                 <strong class="jxr_keyword">return</strong> responseGenerator.generateNotModifiedResponse(responseEntry);
-<a class="jxr_linenumber" name="671" href="#671">671</a>             }
-<a class="jxr_linenumber" name="672" href="#672">672</a>             <strong class="jxr_keyword">return</strong> resp;
-<a class="jxr_linenumber" name="673" href="#673">673</a>         } <strong class="jxr_keyword">catch</strong> (<strong class="jxr_keyword">final</strong> IOException ex) {
-<a class="jxr_linenumber" name="674" href="#674">674</a>             backendResponse.close();
-<a class="jxr_linenumber" name="675" href="#675">675</a>             <strong class="jxr_keyword">throw</strong> ex;
-<a class="jxr_linenumber" name="676" href="#676">676</a>         } <strong class="jxr_keyword">catch</strong> (<strong class="jxr_keyword">final</strong> RuntimeException ex) {
-<a class="jxr_linenumber" name="677" href="#677">677</a>             backendResponse.close();
-<a class="jxr_linenumber" name="678" href="#678">678</a>             <strong class="jxr_keyword">throw</strong> ex;
-<a class="jxr_linenumber" name="679" href="#679">679</a>         }
-<a class="jxr_linenumber" name="680" href="#680">680</a>     }
-<a class="jxr_linenumber" name="681" href="#681">681</a> 
-<a class="jxr_linenumber" name="682" href="#682">682</a>     <strong class="jxr_keyword">private</strong> CloseableHttpResponse retryRequestUnconditionally(
-<a class="jxr_linenumber" name="683" href="#683">683</a>             <strong class="jxr_keyword">final</strong> HttpRoute route,
-<a class="jxr_linenumber" name="684" href="#684">684</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper request,
-<a class="jxr_linenumber" name="685" href="#685">685</a>             <strong class="jxr_keyword">final</strong> HttpClientContext context,
-<a class="jxr_linenumber" name="686" href="#686">686</a>             <strong class="jxr_keyword">final</strong> HttpExecutionAware execAware,
-<a class="jxr_linenumber" name="687" href="#687">687</a>             <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> matchedEntry) <strong class="jxr_keyword">throws</strong> IOException, HttpException {
-<a class="jxr_linenumber" name="688" href="#688">688</a>         <strong class="jxr_keyword">final</strong> HttpRequestWrapper unconditional = conditionalRequestBuilder
-<a class="jxr_linenumber" name="689" href="#689">689</a>             .buildUnconditionalRequest(request, matchedEntry);
-<a class="jxr_linenumber" name="690" href="#690">690</a>         <strong class="jxr_keyword">return</strong> callBackend(route, unconditional, context, execAware);
-<a class="jxr_linenumber" name="691" href="#691">691</a>     }
-<a class="jxr_linenumber" name="692" href="#692">692</a> 
-<a class="jxr_linenumber" name="693" href="#693">693</a>     <strong class="jxr_keyword">private</strong> <a href="../../../../../../org/apache/http/client/cache/HttpCacheEntry.html">HttpCacheEntry</a> getUpdatedVariantEntry(
-<a class="jxr_linenumber" name="694" href="#694">694</a>             <strong class="jxr_keyword">final</strong> HttpHost target,
-<a class="jxr_linenumber" name="695" href="#695">695</a>             <strong class="jxr_keyword">final</strong> HttpRequestWrapper conditionalRequest,

[... 984 lines stripped ...]


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