📄 threadlocalhttpconnectionmanager.html
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head><meta http-equiv="content-type" content="text/html; charset=UTF-8" /><title>ThreadLocalHttpConnectionManager xref</title><link type="text/css" rel="stylesheet" href="../../../stylesheet.css" /></head><body><div id="overview"><a href="../../../../apidocs/org/archive/httpclient/ThreadLocalHttpConnectionManager.html">View Javadoc</a></div><pre><a name="1" href="#1">1</a> <em>/**<em>*</em></em><a name="2" href="#2">2</a> <em> * ====================================================================</em><a name="3" href="#3">3</a> <em> *</em><a name="4" href="#4">4</a> <em> * Licensed under the Apache License, Version 2.0 (the "License");</em><a name="5" href="#5">5</a> <em> * you may not use this file except in compliance with the License.</em><a name="6" href="#6">6</a> <em> * You may obtain a copy of the License at</em><a name="7" href="#7">7</a> <em> *</em><a name="8" href="#8">8</a> <em> * <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="9" href="#9">9</a> <em> *</em><a name="10" href="#10">10</a> <em> * Unless required by applicable law or agreed to in writing, software</em><a name="11" href="#11">11</a> <em> * distributed under the License is distributed on an "AS IS" BASIS,</em><a name="12" href="#12">12</a> <em> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em><a name="13" href="#13">13</a> <em> * See the License for the specific language governing permissions and</em><a name="14" href="#14">14</a> <em> * limitations under the License.</em><a name="15" href="#15">15</a> <em> * ====================================================================</em><a name="16" href="#16">16</a> <em> *</em><a name="17" href="#17">17</a> <em> */</em><a name="18" href="#18">18</a> <strong>package</strong> <a href="../../../org/archive/httpclient/package-summary.html">org.archive.httpclient</a>;<a name="19" href="#19">19</a> <a name="20" href="#20">20</a> <strong>import</strong> java.io.IOException;<a name="21" href="#21">21</a> <strong>import</strong> java.io.InputStream;<a name="22" href="#22">22</a> <strong>import</strong> java.util.ArrayList;<a name="23" href="#23">23</a> <strong>import</strong> java.util.Iterator;<a name="24" href="#24">24</a> <strong>import</strong> java.util.List;<a name="25" href="#25">25</a> <strong>import</strong> java.util.logging.Level;<a name="26" href="#26">26</a> <strong>import</strong> java.util.logging.Logger;<a name="27" href="#27">27</a> <a name="28" href="#28">28</a> <strong>import</strong> org.apache.commons.httpclient.HostConfiguration;<a name="29" href="#29">29</a> <strong>import</strong> org.apache.commons.httpclient.HttpConnection;<a name="30" href="#30">30</a> <strong>import</strong> org.apache.commons.httpclient.HttpConnectionManager;<a name="31" href="#31">31</a> <strong>import</strong> org.apache.commons.httpclient.params.HttpConnectionManagerParams;<a name="32" href="#32">32</a> <a name="33" href="#33">33</a> <em>/**<em>*</em></em><a name="34" href="#34">34</a> <em> * A simple, but thread-safe HttpClient {@link HttpConnectionManager}.</em><a name="35" href="#35">35</a> <em> * Based on {@link org.apache.commons.httpclient.SimpleHttpConnectionManager}.</em><a name="36" href="#36">36</a> <em> * </em><a name="37" href="#37">37</a> <em> * <b>Java &gt;= 1.4 is recommended.</b></em><a name="38" href="#38">38</a> <em> * </em><a name="39" href="#39">39</a> <em> * @author Christian Kohlschuetter </em><a name="40" href="#40">40</a> <em> */</em><a name="41" href="#41">41</a> <strong>public</strong> <strong>final</strong> <strong>class</strong> <a href="../../../org/archive/httpclient/ThreadLocalHttpConnectionManager.html">ThreadLocalHttpConnectionManager</a> implements<a name="42" href="#42">42</a> HttpConnectionManager {<a name="43" href="#43">43</a> <a name="44" href="#44">44</a> <strong>private</strong> <strong>static</strong> <strong>final</strong> CloserThread closer = <strong>new</strong> CloserThread();<a name="45" href="#45">45</a> <strong>private</strong> <strong>static</strong> <strong>final</strong> Logger logger = Logger<a name="46" href="#46">46</a> .getLogger(ThreadLocalHttpConnectionManager.<strong>class</strong>.getName());<a name="47" href="#47">47</a> <a name="48" href="#48">48</a> <strong>private</strong> <strong>final</strong> ThreadLocal tl = <strong>new</strong> ThreadLocal() {<a name="49" href="#49">49</a> <strong>protected</strong> <strong>synchronized</strong> Object initialValue() {<a name="50" href="#50">50</a> <strong>return</strong> <strong>new</strong> ConnectionInfo();<a name="51" href="#51">51</a> }<a name="52" href="#52">52</a> };<a name="53" href="#53">53</a> <a name="54" href="#54">54</a> <strong>private</strong> ConnectionInfo getConnectionInfo() {<a name="55" href="#55">55</a> <strong>return</strong> (ConnectionInfo) tl.get();<a name="56" href="#56">56</a> }<a name="57" href="#57">57</a> <a name="58" href="#58">58</a> <strong>private</strong> <strong>final</strong> <strong>class</strong> ConnectionInfo {<a name="59" href="#59">59</a> <em>/**<em>* The http connection */</em></em><a name="60" href="#60">60</a> <strong>private</strong> <a href="../../../org/apache/commons/httpclient/HttpConnection.html">HttpConnection</a> conn = <strong>null</strong>;<a name="61" href="#61">61</a> <a name="62" href="#62">62</a> <em>/**<em>*</em></em><a name="63" href="#63">63</a> <em> * The time the connection was made idle.</em><a name="64" href="#64">64</a> <em> */</em><a name="65" href="#65">65</a> <strong>private</strong> <strong>long</strong> idleStartTime = Long.MAX_VALUE;<a name="66" href="#66">66</a> }<a name="67" href="#67">67</a> <a name="68" href="#68">68</a> <strong>public</strong> <a href="../../../org/archive/httpclient/ThreadLocalHttpConnectionManager.html">ThreadLocalHttpConnectionManager</a>() {<a name="69" href="#69">69</a> }<a name="70" href="#70">70</a> <a name="71" href="#71">71</a> <em>/**<em>*</em></em><a name="72" href="#72">72</a> <em> * Since the same connection is about to be reused, make sure the</em><a name="73" href="#73">73</a> <em> * previous request was completely processed, and if not</em><a name="74" href="#74">74</a> <em> * consume it now.</em><a name="75" href="#75">75</a> <em> * @param conn The connection</em><a name="76" href="#76">76</a> <em> * @return true, if the connection is reusable</em><a name="77" href="#77">77</a> <em> */</em><a name="78" href="#78">78</a> <strong>private</strong> <strong>static</strong> <strong>boolean</strong> finishLastResponse(<strong>final</strong> <a href="../../../org/apache/commons/httpclient/HttpConnection.html">HttpConnection</a> conn) {<a name="79" href="#79">79</a> InputStream lastResponse = conn.getLastResponseInputStream();<a name="80" href="#80">80</a> <strong>if</strong>(lastResponse != <strong>null</strong>) {<a name="81" href="#81">81</a> conn.setLastResponseInputStream(<strong>null</strong>);<a name="82" href="#82">82</a> <strong>try</strong> {<a name="83" href="#83">83</a> lastResponse.close();<a name="84" href="#84">84</a> <strong>return</strong> <strong>true</strong>;<a name="85" href="#85">85</a> } <strong>catch</strong> (IOException ioe) {<a name="86" href="#86">86</a> <em class="comment">// force reconnect.</em><a name="87" href="#87">87</a> <strong>return</strong> false;<a name="88" href="#88">88</a> }<a name="89" href="#89">89</a> } <strong>else</strong> {<a name="90" href="#90">90</a> <strong>return</strong> false;<a name="91" href="#91">91</a> }<a name="92" href="#92">92</a> }<a name="93" href="#93">93</a> <a name="94" href="#94">94</a> <em>/**<em>*</em></em><a name="95" href="#95">95</a> <em> * Collection of parameters associated with this connection manager.</em><a name="96" href="#96">96</a> <em> */</em><a name="97" href="#97">97</a> <strong>private</strong> HttpConnectionManagerParams params = <strong>new</strong> HttpConnectionManagerParams();<a name="98" href="#98">98</a> <a name="99" href="#99">99</a> <em>/**<em>*</em></em><a name="100" href="#100">100</a> <em> * @see HttpConnectionManager#getConnection(HostConfiguration)</em><a name="101" href="#101">101</a> <em> */</em><a name="102" href="#102">102</a> <strong>public</strong> <a href="../../../org/apache/commons/httpclient/HttpConnection.html">HttpConnection</a> getConnection(<a name="103" href="#103">103</a> <strong>final</strong> HostConfiguration hostConfiguration) {<a name="104" href="#104">104</a> <strong>return</strong> getConnection(hostConfiguration, 0);<a name="105" href="#105">105</a> }<a name="106" href="#106">106</a> <a name="107" href="#107">107</a> <em>/**<em>*</em></em><a name="108" href="#108">108</a> <em> * Gets the staleCheckingEnabled value to be set on HttpConnections that are created.</em><a name="109" href="#109">109</a> <em> * </em><a name="110" href="#110">110</a> <em> * @return <code>true</code> if stale checking will be enabled on HttpConections</em><a name="111" href="#111">111</a> <em> * </em><a name="112" href="#112">112</a> <em> * @see HttpConnection#isStaleCheckingEnabled()</em><a name="113" href="#113">113</a> <em> * </em><a name="114" href="#114">114</a> <em> * @deprecated Use {@link HttpConnectionManagerParams#isStaleCheckingEnabled()},</em><a name="115" href="#115">115</a> <em> * {@link HttpConnectionManager#getParams()}.</em><a name="116" href="#116">116</a> <em> */</em><a name="117" href="#117">117</a> <strong>public</strong> <strong>boolean</strong> isConnectionStaleCheckingEnabled() {<a name="118" href="#118">118</a> <strong>return</strong> <strong>this</strong>.params.isStaleCheckingEnabled();<a name="119" href="#119">119</a> }<a name="120" href="#120">120</a> <a name="121" href="#121">121</a> <em>/**<em>*</em></em><a name="122" href="#122">122</a> <em> * Sets the staleCheckingEnabled value to be set on HttpConnections that are created.</em><a name="123" href="#123">123</a> <em> * </em><a name="124" href="#124">124</a> <em> * @param connectionStaleCheckingEnabled <code>true</code> if stale checking will be enabled </em><a name="125" href="#125">125</a> <em> * on HttpConections</em><a name="126" href="#126">126</a> <em> * </em><a name="127" href="#127">127</a> <em> * @see HttpConnection#setStaleCheckingEnabled(boolean)</em><a name="128" href="#128">128</a> <em> * </em><a name="129" href="#129">129</a> <em> * @deprecated Use {@link HttpConnectionManagerParams#setStaleCheckingEnabled(boolean)},</em><a name="130" href="#130">130</a> <em> * {@link HttpConnectionManager#getParams()}.</em><a name="131" href="#131">131</a> <em> */</em><a name="132" href="#132">132</a> <strong>public</strong> <strong>void</strong> setConnectionStaleCheckingEnabled(<a name="133" href="#133">133</a> <strong>final</strong> <strong>boolean</strong> connectionStaleCheckingEnabled) {<a name="134" href="#134">134</a> <strong>this</strong>.params.setStaleCheckingEnabled(connectionStaleCheckingEnabled);<a name="135" href="#135">135</a> }<a name="136" href="#136">136</a> <a name="137" href="#137">137</a> <em>/**<em>*</em></em><a name="138" href="#138">138</a> <em> * @see HttpConnectionManager#getConnectionWithTimeout(HostConfiguration, long)</em><a name="139" href="#139">139</a> <em> * </em><a name="140" href="#140">140</a> <em> * @since 3.0</em><a name="141" href="#141">141</a> <em> */</em><a name="142" href="#142">142</a> <strong>public</strong> <a href="../../../org/apache/commons/httpclient/HttpConnection.html">HttpConnection</a> getConnectionWithTimeout(⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -