Added: websites/production/commons/content/proper/commons-pool/api-2.3/src-html/org/apache/commons/pool2/impl/GenericObjectPool.html ============================================================================== --- websites/production/commons/content/proper/commons-pool/api-2.3/src-html/org/apache/commons/pool2/impl/GenericObjectPool.html (added) +++ websites/production/commons/content/proper/commons-pool/api-2.3/src-html/org/apache/commons/pool2/impl/GenericObjectPool.html Wed Dec 31 14:00:19 2014 @@ -0,0 +1,1212 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="en"> +<head> +<title>Source code</title> +<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> +</head> +<body> +<div class="sourceContainer"> +<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> +<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a> +<span class="sourceLineNo">003</span> * contributor license agreements. See the NOTICE file distributed with<a name="line.3"></a> +<span class="sourceLineNo">004</span> * this work for additional information regarding copyright ownership.<a name="line.4"></a> +<span class="sourceLineNo">005</span> * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a> +<span class="sourceLineNo">006</span> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a> +<span class="sourceLineNo">007</span> * the License. You may obtain a copy of the License at<a name="line.7"></a> +<span class="sourceLineNo">008</span> *<a name="line.8"></a> +<span class="sourceLineNo">009</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a> +<span class="sourceLineNo">010</span> *<a name="line.10"></a> +<span class="sourceLineNo">011</span> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a> +<span class="sourceLineNo">012</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a> +<span class="sourceLineNo">013</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a> +<span class="sourceLineNo">014</span> * See the License for the specific language governing permissions and<a name="line.14"></a> +<span class="sourceLineNo">015</span> * limitations under the License.<a name="line.15"></a> +<span class="sourceLineNo">016</span> */<a name="line.16"></a> +<span class="sourceLineNo">017</span>package org.apache.commons.pool2.impl;<a name="line.17"></a> +<span class="sourceLineNo">018</span><a name="line.18"></a> +<span class="sourceLineNo">019</span>import java.util.ArrayList;<a name="line.19"></a> +<span class="sourceLineNo">020</span>import java.util.HashSet;<a name="line.20"></a> +<span class="sourceLineNo">021</span>import java.util.Iterator;<a name="line.21"></a> +<span class="sourceLineNo">022</span>import java.util.Map;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.util.NoSuchElementException;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.util.Set;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import java.util.concurrent.TimeUnit;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.27"></a> +<span class="sourceLineNo">028</span><a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.commons.pool2.ObjectPool;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.commons.pool2.PoolUtils;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.commons.pool2.PooledObject;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.commons.pool2.PooledObjectFactory;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.commons.pool2.PooledObjectState;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.commons.pool2.SwallowedExceptionListener;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.commons.pool2.TrackedUse;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.commons.pool2.UsageTracking;<a name="line.36"></a> +<span class="sourceLineNo">037</span><a name="line.37"></a> +<span class="sourceLineNo">038</span>/**<a name="line.38"></a> +<span class="sourceLineNo">039</span> * A configurable {@link ObjectPool} implementation.<a name="line.39"></a> +<span class="sourceLineNo">040</span> * <p><a name="line.40"></a> +<span class="sourceLineNo">041</span> * When coupled with the appropriate {@link PooledObjectFactory},<a name="line.41"></a> +<span class="sourceLineNo">042</span> * <code>GenericObjectPool</code> provides robust pooling functionality for<a name="line.42"></a> +<span class="sourceLineNo">043</span> * arbitrary objects.</p><a name="line.43"></a> +<span class="sourceLineNo">044</span> * <p><a name="line.44"></a> +<span class="sourceLineNo">045</span> * Optionally, one may configure the pool to examine and possibly evict objects<a name="line.45"></a> +<span class="sourceLineNo">046</span> * as they sit idle in the pool and to ensure that a minimum number of idle<a name="line.46"></a> +<span class="sourceLineNo">047</span> * objects are available. This is performed by an "idle object eviction" thread,<a name="line.47"></a> +<span class="sourceLineNo">048</span> * which runs asynchronously. Caution should be used when configuring this<a name="line.48"></a> +<span class="sourceLineNo">049</span> * optional feature. Eviction runs contend with client threads for access to<a name="line.49"></a> +<span class="sourceLineNo">050</span> * objects in the pool, so if they run too frequently performance issues may<a name="line.50"></a> +<span class="sourceLineNo">051</span> * result.</p><a name="line.51"></a> +<span class="sourceLineNo">052</span> * <p><a name="line.52"></a> +<span class="sourceLineNo">053</span> * The pool can also be configured to detect and remove "abandoned" objects,<a name="line.53"></a> +<span class="sourceLineNo">054</span> * i.e. objects that have been checked out of the pool but neither used nor<a name="line.54"></a> +<span class="sourceLineNo">055</span> * returned before the configured<a name="line.55"></a> +<span class="sourceLineNo">056</span> * {@link AbandonedConfig#getRemoveAbandonedTimeout() removeAbandonedTimeout}.<a name="line.56"></a> +<span class="sourceLineNo">057</span> * Abandoned object removal can be configured to happen when<a name="line.57"></a> +<span class="sourceLineNo">058</span> * <code>borrowObject</code> is invoked and the pool is close to starvation, or<a name="line.58"></a> +<span class="sourceLineNo">059</span> * it can be executed by the idle object evictor, or both. If pooled objects<a name="line.59"></a> +<span class="sourceLineNo">060</span> * implement the {@link TrackedUse} interface, their last use will be queried<a name="line.60"></a> +<span class="sourceLineNo">061</span> * using the <code>getLastUsed</code> method on that interface; otherwise<a name="line.61"></a> +<span class="sourceLineNo">062</span> * abandonment is determined by how long an object has been checked out from<a name="line.62"></a> +<span class="sourceLineNo">063</span> * the pool.</p><a name="line.63"></a> +<span class="sourceLineNo">064</span> * <p><a name="line.64"></a> +<span class="sourceLineNo">065</span> * Implementation note: To prevent possible deadlocks, care has been taken to<a name="line.65"></a> +<span class="sourceLineNo">066</span> * ensure that no call to a factory method will occur within a synchronization<a name="line.66"></a> +<span class="sourceLineNo">067</span> * block. See POOL-125 and DBCP-44 for more information.</p><a name="line.67"></a> +<span class="sourceLineNo">068</span> * <p><a name="line.68"></a> +<span class="sourceLineNo">069</span> * This class is intended to be thread-safe.</p><a name="line.69"></a> +<span class="sourceLineNo">070</span> *<a name="line.70"></a> +<span class="sourceLineNo">071</span> * @see GenericKeyedObjectPool<a name="line.71"></a> +<span class="sourceLineNo">072</span> *<a name="line.72"></a> +<span class="sourceLineNo">073</span> * @param <T> Type of element pooled in this pool.<a name="line.73"></a> +<span class="sourceLineNo">074</span> *<a name="line.74"></a> +<span class="sourceLineNo">075</span> * @version $Revision: 1627011 $<a name="line.75"></a> +<span class="sourceLineNo">076</span> *<a name="line.76"></a> +<span class="sourceLineNo">077</span> * @since 2.0<a name="line.77"></a> +<span class="sourceLineNo">078</span> */<a name="line.78"></a> +<span class="sourceLineNo">079</span>public class GenericObjectPool<T> extends BaseGenericObjectPool<T><a name="line.79"></a> +<span class="sourceLineNo">080</span> implements ObjectPool<T>, GenericObjectPoolMXBean, UsageTracking<T> {<a name="line.80"></a> +<span class="sourceLineNo">081</span><a name="line.81"></a> +<span class="sourceLineNo">082</span> /**<a name="line.82"></a> +<span class="sourceLineNo">083</span> * Create a new <code>GenericObjectPool</code> using defaults from<a name="line.83"></a> +<span class="sourceLineNo">084</span> * {@link GenericObjectPoolConfig}.<a name="line.84"></a> +<span class="sourceLineNo">085</span> *<a name="line.85"></a> +<span class="sourceLineNo">086</span> * @param factory The object factory to be used to create object instances<a name="line.86"></a> +<span class="sourceLineNo">087</span> * used by this pool<a name="line.87"></a> +<span class="sourceLineNo">088</span> */<a name="line.88"></a> +<span class="sourceLineNo">089</span> public GenericObjectPool(PooledObjectFactory<T> factory) {<a name="line.89"></a> +<span class="sourceLineNo">090</span> this(factory, new GenericObjectPoolConfig());<a name="line.90"></a> +<span class="sourceLineNo">091</span> }<a name="line.91"></a> +<span class="sourceLineNo">092</span><a name="line.92"></a> +<span class="sourceLineNo">093</span> /**<a name="line.93"></a> +<span class="sourceLineNo">094</span> * Create a new <code>GenericObjectPool</code> using a specific<a name="line.94"></a> +<span class="sourceLineNo">095</span> * configuration.<a name="line.95"></a> +<span class="sourceLineNo">096</span> *<a name="line.96"></a> +<span class="sourceLineNo">097</span> * @param factory The object factory to be used to create object instances<a name="line.97"></a> +<span class="sourceLineNo">098</span> * used by this pool<a name="line.98"></a> +<span class="sourceLineNo">099</span> * @param config The configuration to use for this pool instance. The<a name="line.99"></a> +<span class="sourceLineNo">100</span> * configuration is used by value. Subsequent changes to<a name="line.100"></a> +<span class="sourceLineNo">101</span> * the configuration object will not be reflected in the<a name="line.101"></a> +<span class="sourceLineNo">102</span> * pool.<a name="line.102"></a> +<span class="sourceLineNo">103</span> */<a name="line.103"></a> +<span class="sourceLineNo">104</span> public GenericObjectPool(PooledObjectFactory<T> factory,<a name="line.104"></a> +<span class="sourceLineNo">105</span> GenericObjectPoolConfig config) {<a name="line.105"></a> +<span class="sourceLineNo">106</span><a name="line.106"></a> +<span class="sourceLineNo">107</span> super(config, ONAME_BASE, config.getJmxNamePrefix());<a name="line.107"></a> +<span class="sourceLineNo">108</span><a name="line.108"></a> +<span class="sourceLineNo">109</span> if (factory == null) {<a name="line.109"></a> +<span class="sourceLineNo">110</span> jmxUnregister(); // tidy up<a name="line.110"></a> +<span class="sourceLineNo">111</span> throw new IllegalArgumentException("factory may not be null");<a name="line.111"></a> +<span class="sourceLineNo">112</span> }<a name="line.112"></a> +<span class="sourceLineNo">113</span> this.factory = factory;<a name="line.113"></a> +<span class="sourceLineNo">114</span><a name="line.114"></a> +<span class="sourceLineNo">115</span> idleObjects = new LinkedBlockingDeque<PooledObject<T>>(config.getFairness());<a name="line.115"></a> +<span class="sourceLineNo">116</span><a name="line.116"></a> +<span class="sourceLineNo">117</span> setConfig(config);<a name="line.117"></a> +<span class="sourceLineNo">118</span><a name="line.118"></a> +<span class="sourceLineNo">119</span> startEvictor(getTimeBetweenEvictionRunsMillis());<a name="line.119"></a> +<span class="sourceLineNo">120</span> }<a name="line.120"></a> +<span class="sourceLineNo">121</span><a name="line.121"></a> +<span class="sourceLineNo">122</span> /**<a name="line.122"></a> +<span class="sourceLineNo">123</span> * Create a new <code>GenericObjectPool</code> that tracks and destroys<a name="line.123"></a> +<span class="sourceLineNo">124</span> * objects that are checked out, but never returned to the pool.<a name="line.124"></a> +<span class="sourceLineNo">125</span> *<a name="line.125"></a> +<span class="sourceLineNo">126</span> * @param factory The object factory to be used to create object instances<a name="line.126"></a> +<span class="sourceLineNo">127</span> * used by this pool<a name="line.127"></a> +<span class="sourceLineNo">128</span> * @param config The base pool configuration to use for this pool instance.<a name="line.128"></a> +<span class="sourceLineNo">129</span> * The configuration is used by value. Subsequent changes to<a name="line.129"></a> +<span class="sourceLineNo">130</span> * the configuration object will not be reflected in the<a name="line.130"></a> +<span class="sourceLineNo">131</span> * pool.<a name="line.131"></a> +<span class="sourceLineNo">132</span> * @param abandonedConfig Configuration for abandoned object identification<a name="line.132"></a> +<span class="sourceLineNo">133</span> * and removal. The configuration is used by value.<a name="line.133"></a> +<span class="sourceLineNo">134</span> */<a name="line.134"></a> +<span class="sourceLineNo">135</span> public GenericObjectPool(PooledObjectFactory<T> factory,<a name="line.135"></a> +<span class="sourceLineNo">136</span> GenericObjectPoolConfig config, AbandonedConfig abandonedConfig) {<a name="line.136"></a> +<span class="sourceLineNo">137</span> this(factory, config);<a name="line.137"></a> +<span class="sourceLineNo">138</span> setAbandonedConfig(abandonedConfig);<a name="line.138"></a> +<span class="sourceLineNo">139</span> }<a name="line.139"></a> +<span class="sourceLineNo">140</span><a name="line.140"></a> +<span class="sourceLineNo">141</span> /**<a name="line.141"></a> +<span class="sourceLineNo">142</span> * Returns the cap on the number of "idle" instances in the pool. If maxIdle<a name="line.142"></a> +<span class="sourceLineNo">143</span> * is set too low on heavily loaded systems it is possible you will see<a name="line.143"></a> +<span class="sourceLineNo">144</span> * objects being destroyed and almost immediately new objects being created.<a name="line.144"></a> +<span class="sourceLineNo">145</span> * This is a result of the active threads momentarily returning objects<a name="line.145"></a> +<span class="sourceLineNo">146</span> * faster than they are requesting them them, causing the number of idle<a name="line.146"></a> +<span class="sourceLineNo">147</span> * objects to rise above maxIdle. The best value for maxIdle for heavily<a name="line.147"></a> +<span class="sourceLineNo">148</span> * loaded system will vary but the default is a good starting point.<a name="line.148"></a> +<span class="sourceLineNo">149</span> *<a name="line.149"></a> +<span class="sourceLineNo">150</span> * @return the maximum number of "idle" instances that can be held in the<a name="line.150"></a> +<span class="sourceLineNo">151</span> * pool or a negative value if there is no limit<a name="line.151"></a> +<span class="sourceLineNo">152</span> *<a name="line.152"></a> +<span class="sourceLineNo">153</span> * @see #setMaxIdle<a name="line.153"></a> +<span class="sourceLineNo">154</span> */<a name="line.154"></a> +<span class="sourceLineNo">155</span> @Override<a name="line.155"></a> +<span class="sourceLineNo">156</span> public int getMaxIdle() {<a name="line.156"></a> +<span class="sourceLineNo">157</span> return maxIdle;<a name="line.157"></a> +<span class="sourceLineNo">158</span> }<a name="line.158"></a> +<span class="sourceLineNo">159</span><a name="line.159"></a> +<span class="sourceLineNo">160</span> /**<a name="line.160"></a> +<span class="sourceLineNo">161</span> * Returns the cap on the number of "idle" instances in the pool. If maxIdle<a name="line.161"></a> +<span class="sourceLineNo">162</span> * is set too low on heavily loaded systems it is possible you will see<a name="line.162"></a> +<span class="sourceLineNo">163</span> * objects being destroyed and almost immediately new objects being created.<a name="line.163"></a> +<span class="sourceLineNo">164</span> * This is a result of the active threads momentarily returning objects<a name="line.164"></a> +<span class="sourceLineNo">165</span> * faster than they are requesting them them, causing the number of idle<a name="line.165"></a> +<span class="sourceLineNo">166</span> * objects to rise above maxIdle. The best value for maxIdle for heavily<a name="line.166"></a> +<span class="sourceLineNo">167</span> * loaded system will vary but the default is a good starting point.<a name="line.167"></a> +<span class="sourceLineNo">168</span> *<a name="line.168"></a> +<span class="sourceLineNo">169</span> * @param maxIdle<a name="line.169"></a> +<span class="sourceLineNo">170</span> * The cap on the number of "idle" instances in the pool. Use a<a name="line.170"></a> +<span class="sourceLineNo">171</span> * negative value to indicate an unlimited number of idle<a name="line.171"></a> +<span class="sourceLineNo">172</span> * instances<a name="line.172"></a> +<span class="sourceLineNo">173</span> *<a name="line.173"></a> +<span class="sourceLineNo">174</span> * @see #getMaxIdle<a name="line.174"></a> +<span class="sourceLineNo">175</span> */<a name="line.175"></a> +<span class="sourceLineNo">176</span> public void setMaxIdle(int maxIdle) {<a name="line.176"></a> +<span class="sourceLineNo">177</span> this.maxIdle = maxIdle;<a name="line.177"></a> +<span class="sourceLineNo">178</span> }<a name="line.178"></a> +<span class="sourceLineNo">179</span><a name="line.179"></a> +<span class="sourceLineNo">180</span> /**<a name="line.180"></a> +<span class="sourceLineNo">181</span> * Sets the target for the minimum number of idle objects to maintain in<a name="line.181"></a> +<span class="sourceLineNo">182</span> * the pool. This setting only has an effect if it is positive and<a name="line.182"></a> +<span class="sourceLineNo">183</span> * {@link #getTimeBetweenEvictionRunsMillis()} is greater than zero. If this<a name="line.183"></a> +<span class="sourceLineNo">184</span> * is the case, an attempt is made to ensure that the pool has the required<a name="line.184"></a> +<span class="sourceLineNo">185</span> * minimum number of instances during idle object eviction runs.<a name="line.185"></a> +<span class="sourceLineNo">186</span> * <p><a name="line.186"></a> +<span class="sourceLineNo">187</span> * If the configured value of minIdle is greater than the configured value<a name="line.187"></a> +<span class="sourceLineNo">188</span> * for maxIdle then the value of maxIdle will be used instead.<a name="line.188"></a> +<span class="sourceLineNo">189</span> *<a name="line.189"></a> +<span class="sourceLineNo">190</span> * @param minIdle<a name="line.190"></a> +<span class="sourceLineNo">191</span> * The minimum number of objects.<a name="line.191"></a> +<span class="sourceLineNo">192</span> *<a name="line.192"></a> +<span class="sourceLineNo">193</span> * @see #getMinIdle()<a name="line.193"></a> +<span class="sourceLineNo">194</span> * @see #getMaxIdle()<a name="line.194"></a> +<span class="sourceLineNo">195</span> * @see #getTimeBetweenEvictionRunsMillis()<a name="line.195"></a> +<span class="sourceLineNo">196</span> */<a name="line.196"></a> +<span class="sourceLineNo">197</span> public void setMinIdle(int minIdle) {<a name="line.197"></a> +<span class="sourceLineNo">198</span> this.minIdle = minIdle;<a name="line.198"></a> +<span class="sourceLineNo">199</span> }<a name="line.199"></a> +<span class="sourceLineNo">200</span><a name="line.200"></a> +<span class="sourceLineNo">201</span> /**<a name="line.201"></a> +<span class="sourceLineNo">202</span> * Returns the target for the minimum number of idle objects to maintain in<a name="line.202"></a> +<span class="sourceLineNo">203</span> * the pool. This setting only has an effect if it is positive and<a name="line.203"></a> +<span class="sourceLineNo">204</span> * {@link #getTimeBetweenEvictionRunsMillis()} is greater than zero. If this<a name="line.204"></a> +<span class="sourceLineNo">205</span> * is the case, an attempt is made to ensure that the pool has the required<a name="line.205"></a> +<span class="sourceLineNo">206</span> * minimum number of instances during idle object eviction runs.<a name="line.206"></a> +<span class="sourceLineNo">207</span> * <p><a name="line.207"></a> +<span class="sourceLineNo">208</span> * If the configured value of minIdle is greater than the configured value<a name="line.208"></a> +<span class="sourceLineNo">209</span> * for maxIdle then the value of maxIdle will be used instead.<a name="line.209"></a> +<span class="sourceLineNo">210</span> *<a name="line.210"></a> +<span class="sourceLineNo">211</span> * @return The minimum number of objects.<a name="line.211"></a> +<span class="sourceLineNo">212</span> *<a name="line.212"></a> +<span class="sourceLineNo">213</span> * @see #setMinIdle(int)<a name="line.213"></a> +<span class="sourceLineNo">214</span> * @see #setMaxIdle(int)<a name="line.214"></a> +<span class="sourceLineNo">215</span> * @see #setTimeBetweenEvictionRunsMillis(long)<a name="line.215"></a> +<span class="sourceLineNo">216</span> */<a name="line.216"></a> +<span class="sourceLineNo">217</span> @Override<a name="line.217"></a> +<span class="sourceLineNo">218</span> public int getMinIdle() {<a name="line.218"></a> +<span class="sourceLineNo">219</span> int maxIdleSave = getMaxIdle();<a name="line.219"></a> +<span class="sourceLineNo">220</span> if (this.minIdle > maxIdleSave) {<a name="line.220"></a> +<span class="sourceLineNo">221</span> return maxIdleSave;<a name="line.221"></a> +<span class="sourceLineNo">222</span> } else {<a name="line.222"></a> +<span class="sourceLineNo">223</span> return minIdle;<a name="line.223"></a> +<span class="sourceLineNo">224</span> }<a name="line.224"></a> +<span class="sourceLineNo">225</span> }<a name="line.225"></a> +<span class="sourceLineNo">226</span><a name="line.226"></a> +<span class="sourceLineNo">227</span> /**<a name="line.227"></a> +<span class="sourceLineNo">228</span> * Whether or not abandoned object removal is configured for this pool.<a name="line.228"></a> +<span class="sourceLineNo">229</span> *<a name="line.229"></a> +<span class="sourceLineNo">230</span> * @return true if this pool is configured to detect and remove<a name="line.230"></a> +<span class="sourceLineNo">231</span> * abandoned objects<a name="line.231"></a> +<span class="sourceLineNo">232</span> */<a name="line.232"></a> +<span class="sourceLineNo">233</span> @Override<a name="line.233"></a> +<span class="sourceLineNo">234</span> public boolean isAbandonedConfig() {<a name="line.234"></a> +<span class="sourceLineNo">235</span> return abandonedConfig != null;<a name="line.235"></a> +<span class="sourceLineNo">236</span> }<a name="line.236"></a> +<span class="sourceLineNo">237</span><a name="line.237"></a> +<span class="sourceLineNo">238</span> /**<a name="line.238"></a> +<span class="sourceLineNo">239</span> * Will this pool identify and log any abandoned objects?<a name="line.239"></a> +<span class="sourceLineNo">240</span> *<a name="line.240"></a> +<span class="sourceLineNo">241</span> * @return {@code true} if abandoned object removal is configured for this<a name="line.241"></a> +<span class="sourceLineNo">242</span> * pool and removal events are to be logged otherwise {@code false}<a name="line.242"></a> +<span class="sourceLineNo">243</span> *<a name="line.243"></a> +<span class="sourceLineNo">244</span> * @see AbandonedConfig#getLogAbandoned()<a name="line.244"></a> +<span class="sourceLineNo">245</span> */<a name="line.245"></a> +<span class="sourceLineNo">246</span> @Override<a name="line.246"></a> +<span class="sourceLineNo">247</span> public boolean getLogAbandoned() {<a name="line.247"></a> +<span class="sourceLineNo">248</span> AbandonedConfig ac = this.abandonedConfig;<a name="line.248"></a> +<span class="sourceLineNo">249</span> return ac != null && ac.getLogAbandoned();<a name="line.249"></a> +<span class="sourceLineNo">250</span> }<a name="line.250"></a> +<span class="sourceLineNo">251</span><a name="line.251"></a> +<span class="sourceLineNo">252</span> /**<a name="line.252"></a> +<span class="sourceLineNo">253</span> * Will a check be made for abandoned objects when an object is borrowed<a name="line.253"></a> +<span class="sourceLineNo">254</span> * from this pool?<a name="line.254"></a> +<span class="sourceLineNo">255</span> *<a name="line.255"></a> +<span class="sourceLineNo">256</span> * @return {@code true} if abandoned object removal is configured to be<a name="line.256"></a> +<span class="sourceLineNo">257</span> * activated by borrowObject otherwise {@code false}<a name="line.257"></a> +<span class="sourceLineNo">258</span> *<a name="line.258"></a> +<span class="sourceLineNo">259</span> * @see AbandonedConfig#getRemoveAbandonedOnBorrow()<a name="line.259"></a> +<span class="sourceLineNo">260</span> */<a name="line.260"></a> +<span class="sourceLineNo">261</span> @Override<a name="line.261"></a> +<span class="sourceLineNo">262</span> public boolean getRemoveAbandonedOnBorrow() {<a name="line.262"></a> +<span class="sourceLineNo">263</span> AbandonedConfig ac = this.abandonedConfig;<a name="line.263"></a> +<span class="sourceLineNo">264</span> return ac != null && ac.getRemoveAbandonedOnBorrow();<a name="line.264"></a> +<span class="sourceLineNo">265</span> }<a name="line.265"></a> +<span class="sourceLineNo">266</span><a name="line.266"></a> +<span class="sourceLineNo">267</span> /**<a name="line.267"></a> +<span class="sourceLineNo">268</span> * Will a check be made for abandoned objects when the evictor runs?<a name="line.268"></a> +<span class="sourceLineNo">269</span> *<a name="line.269"></a> +<span class="sourceLineNo">270</span> * @return {@code true} if abandoned object removal is configured to be<a name="line.270"></a> +<span class="sourceLineNo">271</span> * activated when the evictor runs otherwise {@code false}<a name="line.271"></a> +<span class="sourceLineNo">272</span> *<a name="line.272"></a> +<span class="sourceLineNo">273</span> * @see AbandonedConfig#getRemoveAbandonedOnMaintenance()<a name="line.273"></a> +<span class="sourceLineNo">274</span> */<a name="line.274"></a> +<span class="sourceLineNo">275</span> @Override<a name="line.275"></a> +<span class="sourceLineNo">276</span> public boolean getRemoveAbandonedOnMaintenance() {<a name="line.276"></a> +<span class="sourceLineNo">277</span> AbandonedConfig ac = this.abandonedConfig;<a name="line.277"></a> +<span class="sourceLineNo">278</span> return ac != null && ac.getRemoveAbandonedOnMaintenance();<a name="line.278"></a> +<span class="sourceLineNo">279</span> }<a name="line.279"></a> +<span class="sourceLineNo">280</span><a name="line.280"></a> +<span class="sourceLineNo">281</span> /**<a name="line.281"></a> +<span class="sourceLineNo">282</span> * Obtain the timeout before which an object will 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class="sourceLineNo">293</span> return ac != null ? ac.getRemoveAbandonedTimeout() : Integer.MAX_VALUE;<a name="line.293"></a> +<span class="sourceLineNo">294</span> }<a name="line.294"></a> +<span class="sourceLineNo">295</span><a name="line.295"></a> +<span class="sourceLineNo">296</span><a name="line.296"></a> +<span class="sourceLineNo">297</span> /**<a name="line.297"></a> +<span class="sourceLineNo">298</span> * Sets the base pool configuration.<a name="line.298"></a> +<span class="sourceLineNo">299</span> *<a name="line.299"></a> +<span class="sourceLineNo">300</span> * @param conf the new configuration to use. 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This is used by value.<a name="line.327"></a> +<span class="sourceLineNo">328</span> *<a name="line.328"></a> +<span class="sourceLineNo">329</span> * @see AbandonedConfig<a name="line.329"></a> +<span class="sourceLineNo">330</span> */<a name="line.330"></a> +<span class="sourceLineNo">331</span> public void setAbandonedConfig(AbandonedConfig abandonedConfig) throws IllegalArgumentException {<a name="line.331"></a> +<span class="sourceLineNo">332</span> if (abandonedConfig == null) {<a name="line.332"></a> +<span class="sourceLineNo">333</span> this.abandonedConfig = null;<a name="line.333"></a> +<span class="sourceLineNo">334</span> } else {<a name="line.334"></a> +<span class="sourceLineNo">335</span> this.abandonedConfig = new AbandonedConfig();<a name="line.335"></a> +<span class="sourceLineNo">336</span> this.abandonedConfig.setLogAbandoned(abandonedConfig.getLogAbandoned());<a name="line.336"></a> +<span class="sourceLineNo">337</span> this.abandonedConfig.setLogWriter(abandonedConfig.getLogWriter());<a name="line.337"></a> +<span class="sourceLineNo">338</span> this.abandonedConfig.setRemoveAbandonedOnBorrow(abandonedConfig.getRemoveAbandonedOnBorrow());<a name="line.338"></a> +<span class="sourceLineNo">339</span> this.abandonedConfig.setRemoveAbandonedOnMaintenance(abandonedConfig.getRemoveAbandonedOnMaintenance());<a name="line.339"></a> +<span class="sourceLineNo">340</span> this.abandonedConfig.setRemoveAbandonedTimeout(abandonedConfig.getRemoveAbandonedTimeout());<a name="line.340"></a> +<span class="sourceLineNo">341</span> this.abandonedConfig.setUseUsageTracking(abandonedConfig.getUseUsageTracking());<a name="line.341"></a> +<span class="sourceLineNo">342</span> }<a name="line.342"></a> +<span class="sourceLineNo">343</span> }<a name="line.343"></a> +<span class="sourceLineNo">344</span><a name="line.344"></a> +<span class="sourceLineNo">345</span> /**<a name="line.345"></a> +<span class="sourceLineNo">346</span> * Obtain a reference to the factory used to create, destroy and validate<a name="line.346"></a> +<span class="sourceLineNo">347</span> * the objects used by this pool.<a name="line.347"></a> +<span class="sourceLineNo">348</span> *<a name="line.348"></a> +<span class="sourceLineNo">349</span> * @return the factory<a name="line.349"></a> +<span class="sourceLineNo">350</span> */<a name="line.350"></a> +<span class="sourceLineNo">351</span> public PooledObjectFactory<T> getFactory() {<a name="line.351"></a> +<span class="sourceLineNo">352</span> return factory;<a name="line.352"></a> +<span class="sourceLineNo">353</span> }<a name="line.353"></a> +<span class="sourceLineNo">354</span><a name="line.354"></a> +<span class="sourceLineNo">355</span> /**<a name="line.355"></a> +<span class="sourceLineNo">356</span> * Equivalent to <code>{@link #borrowObject(long)<a name="line.356"></a> +<span class="sourceLineNo">357</span> * borrowObject}({@link #getMaxWaitMillis()})</code>.<a name="line.357"></a> +<span class="sourceLineNo">358</span> * <p><a name="line.358"></a> +<span class="sourceLineNo">359</span> * {@inheritDoc}<a name="line.359"></a> +<span class="sourceLineNo">360</span> */<a name="line.360"></a> +<span class="sourceLineNo">361</span> @Override<a name="line.361"></a> +<span class="sourceLineNo">362</span> public T borrowObject() throws Exception {<a name="line.362"></a> +<span class="sourceLineNo">363</span> return borrowObject(getMaxWaitMillis());<a name="line.363"></a> +<span class="sourceLineNo">364</span> }<a name="line.364"></a> +<span class="sourceLineNo">365</span><a name="line.365"></a> +<span class="sourceLineNo">366</span> /**<a name="line.366"></a> +<span class="sourceLineNo">367</span> * Borrow an object from the pool using the specific waiting time which only<a name="line.367"></a> +<span class="sourceLineNo">368</span> * applies if {@link #getBlockWhenExhausted()} is true.<a name="line.368"></a> +<span class="sourceLineNo">369</span> * <p><a name="line.369"></a> +<span class="sourceLineNo">370</span> * If there is one or more idle instance available in the pool, then an<a name="line.370"></a> +<span class="sourceLineNo">371</span> * idle instance will be selected based on the value of {@link #getLifo()},<a name="line.371"></a> +<span class="sourceLineNo">372</span> * activated and returned. 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If validation fails, a <code>NoSuchElementException</code><a name="line.384"></a> +<span class="sourceLineNo">385</span> * is thrown.<a name="line.385"></a> +<span class="sourceLineNo">386</span> * <p><a name="line.386"></a> +<span class="sourceLineNo">387</span> * If the pool is exhausted (no available idle instances and no capacity to<a name="line.387"></a> +<span class="sourceLineNo">388</span> * create new ones), this method will either block (if<a name="line.388"></a> +<span class="sourceLineNo">389</span> * {@link #getBlockWhenExhausted()} is true) or throw a<a name="line.389"></a> +<span class="sourceLineNo">390</span> * <code>NoSuchElementException</code> (if<a name="line.390"></a> +<span class="sourceLineNo">391</span> * {@link #getBlockWhenExhausted()} is false). The length of time that this<a name="line.391"></a> +<span class="sourceLineNo">392</span> * method will block when {@link #getBlockWhenExhausted()} is true is<a name="line.392"></a> +<span class="sourceLineNo">393</span> * determined by the value passed in to the <code>borrowMaxWaitMillis</code><a name="line.393"></a> +<span class="sourceLineNo">394</span> * parameter.<a name="line.394"></a> +<span class="sourceLineNo">395</span> * <p><a name="line.395"></a> +<span class="sourceLineNo">396</span> * When the pool is exhausted, multiple calling threads may be<a name="line.396"></a> +<span class="sourceLineNo">397</span> * simultaneously blocked waiting for instances to become available. A<a name="line.397"></a> +<span class="sourceLineNo">398</span> * "fairness" algorithm has been implemented to ensure that threads receive<a name="line.398"></a> +<span class="sourceLineNo">399</span> * available instances in request arrival order.<a name="line.399"></a> +<span class="sourceLineNo">400</span> *<a name="line.400"></a> +<span class="sourceLineNo">401</span> * @param borrowMaxWaitMillis The time to wait in milliseconds for an object<a name="line.401"></a> +<span class="sourceLineNo">402</span> * to become available<a name="line.402"></a> +<span class="sourceLineNo">403</span> *<a name="line.403"></a> +<span class="sourceLineNo">404</span> * @return object instance from the pool<a name="line.404"></a> +<span class="sourceLineNo">405</span> *<a name="line.405"></a> +<span class="sourceLineNo">406</span> * @throws NoSuchElementException if an instance cannot be returned<a name="line.406"></a> +<span class="sourceLineNo">407</span> *<a name="line.407"></a> +<span class="sourceLineNo">408</span> * @throws Exception if an object instance cannot be returned due to an<a name="line.408"></a> +<span class="sourceLineNo">409</span> * error<a name="line.409"></a> +<span class="sourceLineNo">410</span> */<a name="line.410"></a> +<span class="sourceLineNo">411</span> public T borrowObject(long borrowMaxWaitMillis) throws Exception {<a name="line.411"></a> +<span class="sourceLineNo">412</span> assertOpen();<a name="line.412"></a> +<span class="sourceLineNo">413</span><a name="line.413"></a> +<span class="sourceLineNo">414</span> AbandonedConfig ac = this.abandonedConfig;<a name="line.414"></a> +<span class="sourceLineNo">415</span> if (ac != null && ac.getRemoveAbandonedOnBorrow() &&<a name="line.415"></a> +<span class="sourceLineNo">416</span> (getNumIdle() < 2) &&<a name="line.416"></a> +<span class="sourceLineNo">417</span> (getNumActive() > getMaxTotal() - 3) ) {<a name="line.417"></a> +<span class="sourceLineNo">418</span> removeAbandoned(ac);<a name="line.418"></a> +<span class="sourceLineNo">419</span> }<a name="line.419"></a> +<span class="sourceLineNo">420</span><a name="line.420"></a> +<span class="sourceLineNo">421</span> PooledObject<T> p = null;<a name="line.421"></a> +<span class="sourceLineNo">422</span><a name="line.422"></a> +<span class="sourceLineNo">423</span> // Get local copy of current config so it is consistent for entire<a name="line.423"></a> +<span class="sourceLineNo">424</span> // method execution<a name="line.424"></a> +<span class="sourceLineNo">425</span> boolean blockWhenExhausted = getBlockWhenExhausted();<a name="line.425"></a> +<span class="sourceLineNo">426</span><a name="line.426"></a> +<span class="sourceLineNo">427</span> boolean create;<a name="line.427"></a> +<span class="sourceLineNo">428</span> long waitTime = System.currentTimeMillis();<a name="line.428"></a> +<span class="sourceLineNo">429</span><a name="line.429"></a> +<span class="sourceLineNo">430</span> while (p == null) {<a name="line.430"></a> +<span class="sourceLineNo">431</span> create = false;<a name="line.431"></a> +<span class="sourceLineNo">432</span> if (blockWhenExhausted) {<a name="line.432"></a> +<span class="sourceLineNo">433</span> p = idleObjects.pollFirst();<a name="line.433"></a> +<span class="sourceLineNo">434</span> if (p == null) {<a name="line.434"></a> +<span class="sourceLineNo">435</span> p = create();<a name="line.435"></a> +<span class="sourceLineNo">436</span> if (p != null) {<a name="line.436"></a> +<span class="sourceLineNo">437</span> create = true;<a name="line.437"></a> +<span class="sourceLineNo">438</span> }<a name="line.438"></a> +<span class="sourceLineNo">439</span> }<a name="line.439"></a> +<span class="sourceLineNo">440</span> if (p == null) {<a name="line.440"></a> +<span class="sourceLineNo">441</span> if (borrowMaxWaitMillis < 0) {<a name="line.441"></a> +<span class="sourceLineNo">442</span> p = idleObjects.takeFirst();<a name="line.442"></a> +<span class="sourceLineNo">443</span> } else {<a name="line.443"></a> +<span class="sourceLineNo">444</span> p = idleObjects.pollFirst(borrowMaxWaitMillis,<a name="line.444"></a> +<span class="sourceLineNo">445</span> TimeUnit.MILLISECONDS);<a name="line.445"></a> +<span class="sourceLineNo">446</span> }<a name="line.446"></a> +<span class="sourceLineNo">447</span> }<a name="line.447"></a> +<span class="sourceLineNo">448</span> if (p == null) {<a name="line.448"></a> +<span class="sourceLineNo">449</span> throw new NoSuchElementException(<a name="line.449"></a> +<span class="sourceLineNo">450</span> "Timeout waiting for idle object");<a name="line.450"></a> +<span class="sourceLineNo">451</span> }<a name="line.451"></a> +<span class="sourceLineNo">452</span> if (!p.allocate()) {<a name="line.452"></a> +<span class="sourceLineNo">453</span> p = null;<a name="line.453"></a> +<span class="sourceLineNo">454</span> }<a name="line.454"></a> +<span class="sourceLineNo">455</span> } else {<a name="line.455"></a> +<span class="sourceLineNo">456</span> p = idleObjects.pollFirst();<a name="line.456"></a> +<span class="sourceLineNo">457</span> if (p == null) {<a name="line.457"></a> +<span class="sourceLineNo">458</span> p = create();<a name="line.458"></a> +<span class="sourceLineNo">459</span> if (p != null) {<a name="line.459"></a> +<span class="sourceLineNo">460</span> create = true;<a name="line.460"></a> +<span class="sourceLineNo">461</span> }<a name="line.461"></a> +<span class="sourceLineNo">462</span> }<a name="line.462"></a> +<span class="sourceLineNo">463</span> if (p == null) {<a name="line.463"></a> +<span class="sourceLineNo">464</span> throw new NoSuchElementException("Pool exhausted");<a name="line.464"></a> +<span class="sourceLineNo">465</span> }<a name="line.465"></a> +<span class="sourceLineNo">466</span> if (!p.allocate()) {<a name="line.466"></a> +<span class="sourceLineNo">467</span> p = null;<a name="line.467"></a> +<span class="sourceLineNo">468</span> }<a name="line.468"></a> +<span class="sourceLineNo">469</span> }<a name="line.469"></a> +<span class="sourceLineNo">470</span><a name="line.470"></a> +<span class="sourceLineNo">471</span> if (p != null) {<a name="line.471"></a> +<span class="sourceLineNo">472</span> try {<a name="line.472"></a> +<span class="sourceLineNo">473</span> factory.activateObject(p);<a name="line.473"></a> +<span class="sourceLineNo">474</span> } catch (Exception e) {<a name="line.474"></a> +<span class="sourceLineNo">475</span> try {<a name="line.475"></a> +<span class="sourceLineNo">476</span> destroy(p);<a name="line.476"></a> +<span class="sourceLineNo">477</span> } catch (Exception e1) {<a name="line.477"></a> +<span class="sourceLineNo">478</span> // Ignore - 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Once the pool is closed, {@link #borrowObject()} will<a name="line.697"></a> +<span class="sourceLineNo">698</span> * fail with IllegalStateException, but {@link #returnObject(Object)} and<a name="line.698"></a> +<span class="sourceLineNo">699</span> * {@link #invalidateObject(Object)} will continue to work, with returned<a name="line.699"></a> +<span class="sourceLineNo">700</span> * objects destroyed on return.<a name="line.700"></a> +<span class="sourceLineNo">701</span> * <p><a name="line.701"></a> +<span class="sourceLineNo">702</span> * Destroys idle instances in the pool by invoking {@link #clear()}.<a name="line.702"></a> +<span class="sourceLineNo">703</span> */<a name="line.703"></a> +<span class="sourceLineNo">704</span> @Override<a name="line.704"></a> +<span class="sourceLineNo">705</span> public void close() {<a name="line.705"></a> +<span class="sourceLineNo">706</span> if (isClosed()) {<a name="line.706"></a> +<span class="sourceLineNo">707</span> return;<a name="line.707"></a> +<span class="sourceLineNo">708</span> }<a name="line.708"></a> +<span class="sourceLineNo">709</span><a name="line.709"></a> +<span class="sourceLineNo">710</span> synchronized (closeLock) {<a name="line.710"></a> +<span class="sourceLineNo">711</span> if (isClosed()) {<a name="line.711"></a> +<span class="sourceLineNo">712</span> return;<a name="line.712"></a> +<span class="sourceLineNo">713</span> }<a name="line.713"></a> +<span class="sourceLineNo">714</span><a name="line.714"></a> +<span class="sourceLineNo">715</span> // Stop the evictor before the pool is closed since evict() calls<a name="line.715"></a> +<span class="sourceLineNo">716</span> // assertOpen()<a name="line.716"></a> +<span class="sourceLineNo">717</span> startEvictor(-1L);<a name="line.717"></a> +<span class="sourceLineNo">718</span><a name="line.718"></a> +<span class="sourceLineNo">719</span> closed = true;<a name="line.719"></a> +<span class="sourceLineNo">720</span> // This clear removes any idle objects<a name="line.720"></a> +<span class="sourceLineNo">721</span> clear();<a name="line.721"></a> +<span class="sourceLineNo">722</span><a name="line.722"></a> +<span class="sourceLineNo">723</span> jmxUnregister();<a name="line.723"></a> +<span class="sourceLineNo">724</span><a name="line.724"></a> +<span class="sourceLineNo">725</span> // Release any threads that were waiting for an object<a name="line.725"></a> +<span class="sourceLineNo">726</span> idleObjects.interuptTakeWaiters();<a name="line.726"></a> +<span class="sourceLineNo">727</span> }<a name="line.727"></a> +<span class="sourceLineNo">728</span> }<a name="line.728"></a> +<span class="sourceLineNo">729</span><a name="line.729"></a> +<span class="sourceLineNo">730</span> /**<a name="line.730"></a> +<span class="sourceLineNo">731</span> * {@inheritDoc}<a name="line.731"></a> +<span class="sourceLineNo">732</span> * <p><a name="line.732"></a> +<span class="sourceLineNo">733</span> * Successive activations of this method examine objects in sequence,<a name="line.733"></a> +<span class="sourceLineNo">734</span> * cycling through objects in oldest-to-youngest order.<a name="line.734"></a> +<span class="sourceLineNo">735</span> */<a name="line.735"></a> +<span class="sourceLineNo">736</span> @Override<a name="line.736"></a> +<span class="sourceLineNo">737</span> public void evict() throws Exception {<a name="line.737"></a> +<span class="sourceLineNo">738</span> assertOpen();<a name="line.738"></a> +<span class="sourceLineNo">739</span><a name="line.739"></a> +<span class="sourceLineNo">740</span> if (idleObjects.size() > 0) {<a name="line.740"></a> +<span class="sourceLineNo">741</span><a name="line.741"></a> +<span class="sourceLineNo">742</span> PooledObject<T> underTest = null;<a name="line.742"></a> +<span class="sourceLineNo">743</span> EvictionPolicy<T> evictionPolicy = getEvictionPolicy();<a name="line.743"></a> +<span class="sourceLineNo">744</span><a name="line.744"></a> +<span class="sourceLineNo">745</span> synchronized (evictionLock) {<a name="line.745"></a> +<span class="sourceLineNo">746</span> EvictionConfig evictionConfig = new EvictionConfig(<a name="line.746"></a> +<span class="sourceLineNo">747</span> getMinEvictableIdleTimeMillis(),<a name="line.747"></a> +<span class="sourceLineNo">748</span> getSoftMinEvictableIdleTimeMillis(),<a name="line.748"></a> +<span class="sourceLineNo">749</span> getMinIdle());<a name="line.749"></a> +<span class="sourceLineNo">750</span><a name="line.750"></a> +<span class="sourceLineNo">751</span> boolean testWhileIdle = getTestWhileIdle();<a name="line.751"></a> +<span class="sourceLineNo">752</span><a name="line.752"></a> +<span class="sourceLineNo">753</span> for (int i = 0, m = getNumTests(); i < m; i++) {<a name="line.753"></a> +<span class="sourceLineNo">754</span> if (evictionIterator == null || !evictionIterator.hasNext()) {<a name="line.754"></a> +<span class="sourceLineNo">755</span> if (getLifo()) {<a name="line.755"></a> +<span class="sourceLineNo">756</span> evictionIterator = idleObjects.descendingIterator();<a name="line.756"></a> +<span class="sourceLineNo">757</span> } else {<a name="line.757"></a> +<span class="sourceLineNo">758</span> evictionIterator = idleObjects.iterator();<a name="line.758"></a> +<span class="sourceLineNo">759</span> }<a name="line.759"></a> +<span class="sourceLineNo">760</span> }<a name="line.760"></a> +<span class="sourceLineNo">761</span> if (!evictionIterator.hasNext()) {<a name="line.761"></a> +<span class="sourceLineNo">762</span> // Pool exhausted, nothing to do here<a name="line.762"></a> +<span class="sourceLineNo">763</span> return;<a name="line.763"></a> +<span class="sourceLineNo">764</span> }<a name="line.764"></a> +<span class="sourceLineNo">765</span><a name="line.765"></a> +<span class="sourceLineNo">766</span> try {<a name="line.766"></a> +<span class="sourceLineNo">767</span> underTest = evictionIterator.next();<a name="line.767"></a> +<span class="sourceLineNo">768</span> } catch (NoSuchElementException nsee) {<a name="line.768"></a> +<span class="sourceLineNo">769</span> // Object was borrowed in another thread<a name="line.769"></a> +<span class="sourceLineNo">770</span> // Don't count this as an eviction test so reduce i;<a name="line.770"></a> +<span class="sourceLineNo">771</span> i--;<a name="line.771"></a> +<span class="sourceLineNo">772</span> evictionIterator = null;<a name="line.772"></a> +<span class="sourceLineNo">773</span> continue;<a name="line.773"></a> +<span class="sourceLineNo">774</span> }<a name="line.774"></a> +<span class="sourceLineNo">775</span><a name="line.775"></a> +<span class="sourceLineNo">776</span> if (!underTest.startEvictionTest()) {<a name="line.776"></a> +<span class="sourceLineNo">777</span> // Object was borrowed in another thread<a name="line.777"></a> +<span class="sourceLineNo">778</span> // Don't count this as an eviction test so reduce i;<a name="line.778"></a> +<span class="sourceLineNo">779</span> i--;<a name="line.779"></a> +<span class="sourceLineNo">780</span> continue;<a name="line.780"></a> +<span class="sourceLineNo">781</span> }<a name="line.781"></a> +<span class="sourceLineNo">782</span><a name="line.782"></a> +<span class="sourceLineNo">783</span> // User provided eviction policy could throw all sorts of<a name="line.783"></a> +<span class="sourceLineNo">784</span> // crazy exceptions. Protect against such an exception<a name="line.784"></a> +<span class="sourceLineNo">785</span> // killing the eviction thread.<a name="line.785"></a> +<span class="sourceLineNo">786</span> boolean evict;<a name="line.786"></a> +<span class="sourceLineNo">787</span> try {<a name="line.787"></a> +<span class="sourceLineNo">788</span> evict = evictionPolicy.evict(evictionConfig, underTest,<a name="line.788"></a> +<span class="sourceLineNo">789</span> idleObjects.size());<a name="line.789"></a> +<span class="sourceLineNo">790</span> } catch (Throwable t) {<a name="line.790"></a> +<span class="sourceLineNo">791</span> // Slightly convoluted as SwallowedExceptionListener<a name="line.791"></a> +<span class="sourceLineNo">792</span> // uses Exception rather than Throwable<a name="line.792"></a> +<span class="sourceLineNo">793</span> PoolUtils.checkRethrow(t);<a name="line.793"></a> +<span class="sourceLineNo">794</span> swallowException(new Exception(t));<a name="line.794"></a> +<span class="sourceLineNo">795</span> // Don't evict on error conditions<a name="line.795"></a> +<span class="sourceLineNo">796</span> evict = false;<a name="line.796"></a> +<span class="sourceLineNo">797</span> }<a name="line.797"></a> +<span class="sourceLineNo">798</span><a name="line.798"></a> +<span class="sourceLineNo">799</span> if (evict) {<a name="line.799"></a> +<span class="sourceLineNo">800</span> destroy(underTest);<a name="line.800"></a> +<span class="sourceLineNo">801</span> destroyedByEvictorCount.incrementAndGet();<a name="line.801"></a> +<span class="sourceLineNo">802</span> } else {<a name="line.802"></a> +<span class="sourceLineNo">803</span> if (testWhileIdle) {<a name="line.803"></a> +<span class="sourceLineNo">804</span> boolean active = false;<a name="line.804"></a> +<span class="sourceLineNo">805</span> try {<a name="line.805"></a> +<span class="sourceLineNo">806</span> factory.activateObject(underTest);<a name="line.806"></a> +<span class="sourceLineNo">807</span> active = true;<a name="line.807"></a> +<span class="sourceLineNo">808</span> } catch (Exception e) {<a name="line.808"></a> +<span class="sourceLineNo">809</span> destroy(underTest);<a name="line.809"></a> +<span class="sourceLineNo">810</span> destroyedByEvictorCount.incrementAndGet();<a name="line.810"></a> +<span class="sourceLineNo">811</span> }<a name="line.811"></a> +<span class="sourceLineNo">812</span> if (active) {<a name="line.812"></a> +<span class="sourceLineNo">813</span> if (!factory.validateObject(underTest)) {<a name="line.813"></a> +<span class="sourceLineNo">814</span> destroy(underTest);<a name="line.814"></a> +<span class="sourceLineNo">815</span> destroyedByEvictorCount.incrementAndGet();<a name="line.815"></a> +<span class="sourceLineNo">816</span> } else {<a name="line.816"></a> +<span class="sourceLineNo">817</span> try {<a name="line.817"></a> +<span class="sourceLineNo">818</span> factory.passivateObject(underTest);<a name="line.818"></a> +<span 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circulation<a name="line.843"></a> +<span class="sourceLineNo">844</span> * or in process of being created, this method returns null.<a name="line.844"></a> +<span class="sourceLineNo">845</span> *<a name="line.845"></a> +<span class="sourceLineNo">846</span> * @return The new wrapped pooled object<a name="line.846"></a> +<span class="sourceLineNo">847</span> *<a name="line.847"></a> +<span class="sourceLineNo">848</span> * @throws Exception if the object factory's {@code makeObject} fails<a name="line.848"></a> +<span class="sourceLineNo">849</span> */<a name="line.849"></a> +<span class="sourceLineNo">850</span> private PooledObject<T> create() throws Exception {<a name="line.850"></a> +<span class="sourceLineNo">851</span> int localMaxTotal = getMaxTotal();<a name="line.851"></a> +<span class="sourceLineNo">852</span> long newCreateCount = createCount.incrementAndGet();<a name="line.852"></a> +<span class="sourceLineNo">853</span> if (localMaxTotal > -1 && newCreateCount > localMaxTotal ||<a name="line.853"></a> +<span class="sourceLineNo">854</span> newCreateCount > Integer.MAX_VALUE) {<a name="line.854"></a> +<span class="sourceLineNo">855</span> createCount.decrementAndGet();<a name="line.855"></a> +<span class="sourceLineNo">856</span> return null;<a name="line.856"></a> +<span class="sourceLineNo">857</span> }<a name="line.857"></a> +<span class="sourceLineNo">858</span><a name="line.858"></a> +<span class="sourceLineNo">859</span> final PooledObject<T> p;<a name="line.859"></a> +<span class="sourceLineNo">860</span> try {<a name="line.860"></a> +<span class="sourceLineNo">861</span> p = factory.makeObject();<a name="line.861"></a> +<span class="sourceLineNo">862</span> } catch (Exception e) {<a name="line.862"></a> +<span class="sourceLineNo">863</span> createCount.decrementAndGet();<a name="line.863"></a> +<span class="sourceLineNo">864</span> throw e;<a name="line.864"></a> +<span class="sourceLineNo">865</span> }<a name="line.865"></a> +<span class="sourceLineNo">866</span><a name="line.866"></a> +<span class="sourceLineNo">867</span> AbandonedConfig ac = this.abandonedConfig;<a name="line.867"></a> +<span class="sourceLineNo">868</span> if (ac != null && ac.getLogAbandoned()) {<a name="line.868"></a> +<span class="sourceLineNo">869</span> p.setLogAbandoned(true);<a name="line.869"></a> +<span class="sourceLineNo">870</span> }<a name="line.870"></a> +<span class="sourceLineNo">871</span><a name="line.871"></a> +<span class="sourceLineNo">872</span> createdCount.incrementAndGet();<a name="line.872"></a> +<span class="sourceLineNo">873</span> allObjects.put(p.getObject(), p);<a name="line.873"></a> +<span class="sourceLineNo">874</span> return p;<a name="line.874"></a> +<span class="sourceLineNo">875</span> }<a name="line.875"></a> +<span class="sourceLineNo">876</span><a name="line.876"></a> +<span class="sourceLineNo">877</span> /**<a name="line.877"></a> +<span class="sourceLineNo">878</span> * Destroys a wrapped pooled object.<a name="line.878"></a> +<span class="sourceLineNo">879</span> *<a name="line.879"></a> +<span class="sourceLineNo">880</span> * @param toDestory The wrapped pooled object to destroy<a name="line.880"></a> +<span class="sourceLineNo">881</span> *<a name="line.881"></a> +<span class="sourceLineNo">882</span> * @throws Exception If the factory fails to destroy the pooled object<a name="line.882"></a> +<span class="sourceLineNo">883</span> * cleanly<a name="line.883"></a> +<span class="sourceLineNo">884</span> */<a name="line.884"></a> +<span class="sourceLineNo">885</span> private void destroy(PooledObject<T> toDestory) throws Exception {<a name="line.885"></a> +<span class="sourceLineNo">886</span> toDestory.invalidate();<a name="line.886"></a> +<span class="sourceLineNo">887</span> idleObjects.remove(toDestory);<a name="line.887"></a> +<span class="sourceLineNo">888</span> allObjects.remove(toDestory.getObject());<a name="line.888"></a> +<span class="sourceLineNo">889</span> try {<a name="line.889"></a> +<span class="sourceLineNo">890</span> factory.destroyObject(toDestory);<a name="line.890"></a> +<span class="sourceLineNo">891</span> } finally {<a name="line.891"></a> +<span class="sourceLineNo">892</span> destroyedCount.incrementAndGet();<a name="line.892"></a> +<span class="sourceLineNo">893</span> createCount.decrementAndGet();<a name="line.893"></a> +<span class="sourceLineNo">894</span> }<a name="line.894"></a> +<span class="sourceLineNo">895</span> }<a name="line.895"></a> +<span class="sourceLineNo">896</span><a name="line.896"></a>
[... 310 lines stripped ...]
