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| <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.logging.log4j.flume.appender;<a name="line.17"></a> |
| <span class="sourceLineNo">018</span><a name="line.18"></a> |
| <span class="sourceLineNo">019</span>import java.io.ByteArrayInputStream;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.ByteArrayOutputStream;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.DataInputStream;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.DataOutputStream;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.File;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.nio.charset.Charset;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.nio.charset.StandardCharsets;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.HashMap;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Map;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.concurrent.Callable;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.concurrent.ExecutorService;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.concurrent.Executors;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.concurrent.Future;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.concurrent.TimeUnit;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import javax.crypto.Cipher;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import javax.crypto.SecretKey;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span><a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import com.sleepycat.je.Cursor;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import com.sleepycat.je.CursorConfig;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import com.sleepycat.je.Database;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import com.sleepycat.je.DatabaseConfig;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import com.sleepycat.je.DatabaseEntry;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import com.sleepycat.je.Environment;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import com.sleepycat.je.EnvironmentConfig;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import com.sleepycat.je.LockConflictException;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import com.sleepycat.je.LockMode;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import com.sleepycat.je.OperationStatus;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import com.sleepycat.je.StatsConfig;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import com.sleepycat.je.Transaction;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.flume.Event;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.flume.event.SimpleEvent;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.logging.log4j.LoggingException;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.logging.log4j.core.appender.ManagerFactory;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.logging.log4j.core.config.Property;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.logging.log4j.core.config.plugins.util.PluginManager;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.logging.log4j.core.config.plugins.util.PluginType;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.logging.log4j.core.util.ExecutorServices;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.logging.log4j.core.util.FileUtils;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.logging.log4j.core.util.Log4jThread;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.apache.logging.log4j.core.util.Log4jThreadFactory;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.apache.logging.log4j.core.util.SecretKeyProvider;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.apache.logging.log4j.util.Strings;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span>/**<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * Manager that persists data to Berkeley DB before passing it on to Flume.<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> */<a name="line.65"></a> |
| <span class="sourceLineNo">066</span>public class FlumePersistentManager extends FlumeAvroManager {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> /** Attribute name for the key provider. */<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> public static final String KEY_PROVIDER = "keyProvider";<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private static final Charset UTF8 = StandardCharsets.UTF_8;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private static final String DEFAULT_DATA_DIR = ".log4j/flumeData";<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> private static final long SHUTDOWN_WAIT_MILLIS = 60000;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private static final long LOCK_TIMEOUT_SLEEP_MILLIS = 500;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> private static BDBManagerFactory factory = new BDBManagerFactory();<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span> private final Database database;<a name="line.81"></a> |
| <span class="sourceLineNo">082</span><a name="line.82"></a> |
| <span class="sourceLineNo">083</span> private final Environment environment;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> private final WriterThread worker;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> private final Gate gate = new Gate();<a name="line.87"></a> |
| <span class="sourceLineNo">088</span><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private final SecretKey secretKey;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span><a name="line.90"></a> |
| <span class="sourceLineNo">091</span> private final int lockTimeoutRetryCount;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> private final ExecutorService threadPool;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> private final AtomicLong dbCount = new AtomicLong();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> /**<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * Constructor<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * @param name The unique name of this manager.<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * @param shortName Original name for the Manager.<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * @param agents An array of Agents.<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * @param batchSize The number of events to include in a batch.<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> * @param retries The number of times to retry connecting before giving up.<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> * @param connectionTimeout The amount of time to wait for a connection to be established.<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> * @param requestTimeout The amount of time to wair for a response to a request.<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> * @param delay The amount of time to wait between retries.<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * @param database The database to write to.<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * @param environment The database environment.<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * @param secretKey The SecretKey to use for encryption.<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * @param lockTimeoutRetryCount The number of times to retry a lock timeout.<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> */<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> protected FlumePersistentManager(final String name, final String shortName, final Agent[] agents,<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> final int batchSize, final int retries, final int connectionTimeout,<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> final int requestTimeout, final int delay, final Database database,<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> final Environment environment, final SecretKey secretKey,<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> final int lockTimeoutRetryCount) {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> super(name, shortName, agents, batchSize, delay, retries, connectionTimeout, requestTimeout);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> this.database = database;<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> this.environment = environment;<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> dbCount.set(database.count());<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> this.worker = new WriterThread(database, environment, this, gate, batchSize, secretKey, dbCount,<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> lockTimeoutRetryCount);<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> this.worker.start();<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> this.secretKey = secretKey;<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> this.threadPool = Executors.newCachedThreadPool(Log4jThreadFactory.createDaemonThreadFactory("Flume"));<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> this.lockTimeoutRetryCount = lockTimeoutRetryCount;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> }<a name="line.127"></a> |
| <span class="sourceLineNo">128</span><a name="line.128"></a> |
| <span class="sourceLineNo">129</span><a name="line.129"></a> |
| <span class="sourceLineNo">130</span> /**<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> * Returns a FlumeAvroManager.<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> * @param name The name of the manager.<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> * @param agents The agents to use.<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> * @param properties Properties to pass to the Manager.<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> * @param batchSize The number of events to include in a batch.<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> * @param retries The number of times to retry connecting before giving up.<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> * @param connectionTimeout The amount of time to wait to establish a connection.<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * @param requestTimeout The amount of time to wait for a response to a request.<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> * @param delayMillis Amount of time to delay before delivering a batch.<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> * @param lockTimeoutRetryCount The number of times to retry after a lock timeout.<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> * @param dataDir The location of the Berkeley database.<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> * @return A FlumeAvroManager.<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> */<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> public static FlumePersistentManager getManager(final String name, final Agent[] agents,<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> final Property[] properties, int batchSize, final int retries,<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> final int connectionTimeout, final int requestTimeout,<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> final int delayMillis, final int lockTimeoutRetryCount,<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> final String dataDir) {<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> if (agents == null || agents.length == 0) {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> throw new IllegalArgumentException("At least one agent is required");<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> }<a name="line.151"></a> |
| <span class="sourceLineNo">152</span><a name="line.152"></a> |
| <span class="sourceLineNo">153</span> if (batchSize <= 0) {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> batchSize = 1;<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> final String dataDirectory = Strings.isEmpty(dataDir) ? DEFAULT_DATA_DIR : dataDir;<a name="line.156"></a> |
| <span class="sourceLineNo">157</span><a name="line.157"></a> |
| <span class="sourceLineNo">158</span> final StringBuilder sb = new StringBuilder("FlumePersistent[");<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> boolean first = true;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> for (final Agent agent : agents) {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> if (!first) {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> sb.append(',');<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> }<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> sb.append(agent.getHost()).append(':').append(agent.getPort());<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> first = false;<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> sb.append(']');<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> sb.append(' ').append(dataDirectory);<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> return getManager(sb.toString(), factory, new FactoryData(name, agents, batchSize, retries,<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> connectionTimeout, requestTimeout, delayMillis, lockTimeoutRetryCount, dataDir, properties));<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span><a name="line.172"></a> |
| <span class="sourceLineNo">173</span> @Override<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> public void send(final Event event) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> if (worker.isShutdown()) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> throw new LoggingException("Unable to record event");<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> final Map<String, String> headers = event.getHeaders();<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> final byte[] keyData = headers.get(FlumeEvent.GUID).getBytes(UTF8);<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> try {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> final ByteArrayOutputStream baos = new ByteArrayOutputStream();<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> final DataOutputStream daos = new DataOutputStream(baos);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> daos.writeInt(event.getBody().length);<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> daos.write(event.getBody(), 0, event.getBody().length);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> daos.writeInt(event.getHeaders().size());<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> for (final Map.Entry<String, String> entry : headers.entrySet()) {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> daos.writeUTF(entry.getKey());<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> daos.writeUTF(entry.getValue());<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> }<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> byte[] eventData = baos.toByteArray();<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> if (secretKey != null) {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> final Cipher cipher = Cipher.getInstance("AES");<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> cipher.init(Cipher.ENCRYPT_MODE, secretKey);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> eventData = cipher.doFinal(eventData);<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> }<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> final Future<Integer> future = threadPool.submit(new BDBWriter(keyData, eventData, environment, database,<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> gate, dbCount, getBatchSize(), lockTimeoutRetryCount));<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> try {<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> future.get();<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> } catch (final InterruptedException ie) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> // preserve interruption status<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> Thread.currentThread().interrupt();<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> }<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> } catch (final Exception ex) {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> throw new LoggingException("Exception occurred writing log event", ex);<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span><a name="line.209"></a> |
| <span class="sourceLineNo">210</span> @Override<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> protected boolean releaseSub(final long timeout, final TimeUnit timeUnit) {<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> boolean closed = true;<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> LOGGER.debug("Shutting down FlumePersistentManager");<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> worker.shutdown();<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> final long requestedTimeoutMillis = timeUnit.toMillis(timeout);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> final long shutdownWaitMillis = requestedTimeoutMillis > 0 ? requestedTimeoutMillis : SHUTDOWN_WAIT_MILLIS;<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> try {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> worker.join(shutdownWaitMillis);<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> } catch (final InterruptedException ie) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> // Ignore the exception and shutdown.<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> ExecutorServices.shutdown(threadPool, shutdownWaitMillis, TimeUnit.MILLISECONDS, toString());<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> try {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> worker.join();<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> } catch (final InterruptedException ex) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> logDebug("interrupted while waiting for worker to complete", ex);<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> try {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> LOGGER.debug("FlumePersistenceManager dataset status: {}", database.getStats(new StatsConfig()));<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> database.close();<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> } catch (final Exception ex) {<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> logWarn("Failed to close database", ex);<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> closed = false;<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> try {<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> environment.cleanLog();<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> environment.close();<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> } catch (final Exception ex) {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> logWarn("Failed to close environment", ex);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> closed = false;<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> return closed && super.releaseSub(timeout, timeUnit);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span><a name="line.244"></a> |
| <span class="sourceLineNo">245</span> private void doSend(final SimpleEvent event) {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> LOGGER.debug("Sending event to Flume");<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> super.send(event);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> }<a name="line.248"></a> |
| <span class="sourceLineNo">249</span><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> /**<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> * Thread for writing to Berkeley DB to avoid having interrupts close the database.<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> */<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> private static class BDBWriter implements Callable<Integer> {<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> private final byte[] eventData;<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> private final byte[] keyData;<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> private final Environment environment;<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> private final Database database;<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> private final Gate gate;<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> private final AtomicLong dbCount;<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> private final long batchSize;<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> private final int lockTimeoutRetryCount;<a name="line.261"></a> |
| <span class="sourceLineNo">262</span><a name="line.262"></a> |
| <span class="sourceLineNo">263</span> public BDBWriter(final byte[] keyData, final byte[] eventData, final Environment environment,<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> final Database database, final Gate gate, final AtomicLong dbCount, final long batchSize,<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> final int lockTimeoutRetryCount) {<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> this.keyData = keyData;<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> this.eventData = eventData;<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> this.environment = environment;<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> this.database = database;<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> this.gate = gate;<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> this.dbCount = dbCount;<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> this.batchSize = batchSize;<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> this.lockTimeoutRetryCount = lockTimeoutRetryCount;<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> }<a name="line.274"></a> |
| <span class="sourceLineNo">275</span><a name="line.275"></a> |
| <span class="sourceLineNo">276</span> @Override<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> public Integer call() throws Exception {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> final DatabaseEntry key = new DatabaseEntry(keyData);<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> final DatabaseEntry data = new DatabaseEntry(eventData);<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> Exception exception = null;<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> for (int retryIndex = 0; retryIndex < lockTimeoutRetryCount; ++retryIndex) {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> Transaction txn = null;<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> try {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> txn = environment.beginTransaction(null, null);<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> try {<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> database.put(txn, key, data);<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> txn.commit();<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> txn = null;<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> if (dbCount.incrementAndGet() >= batchSize) {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> gate.open();<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> exception = null;<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> break;<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> } catch (final LockConflictException lce) {<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> exception = lce;<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> // Fall through and retry.<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> } catch (final Exception ex) {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> if (txn != null) {<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> txn.abort();<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> throw ex;<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> } finally {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> if (txn != null) {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> txn.abort();<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> txn = null;<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> }<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> } catch (final LockConflictException lce) {<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> exception = lce;<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> if (txn != null) {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> try {<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> txn.abort();<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> txn = null;<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> } catch (final Exception ex) {<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> LOGGER.trace("Ignoring exception while aborting transaction during lock conflict.");<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> }<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> }<a name="line.317"></a> |
| <span class="sourceLineNo">318</span><a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> try {<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> Thread.sleep(LOCK_TIMEOUT_SLEEP_MILLIS);<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> } catch (final InterruptedException ie) {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> // Ignore the error<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> }<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> }<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> if (exception != null) {<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> throw exception;<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> }<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> return eventData.length;<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> }<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> }<a name="line.331"></a> |
| <span class="sourceLineNo">332</span><a name="line.332"></a> |
| <span class="sourceLineNo">333</span> /**<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> * Factory data.<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> */<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> private static class FactoryData {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> private final String name;<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> private final Agent[] agents;<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> private final int batchSize;<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> private final String dataDir;<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> private final int retries;<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> private final int connectionTimeout;<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> private final int requestTimeout;<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> private final int delayMillis;<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> private final int lockTimeoutRetryCount;<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> private final Property[] properties;<a name="line.346"></a> |
| <span class="sourceLineNo">347</span><a name="line.347"></a> |
| <span class="sourceLineNo">348</span> /**<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> * Constructor.<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> * @param name The name of the Appender.<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> * @param agents The agents.<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> * @param batchSize The number of events to include in a batch.<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> * @param dataDir The directory for data.<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> */<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> public FactoryData(final String name, final Agent[] agents, final int batchSize, final int retries,<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> final int connectionTimeout, final int requestTimeout, final int delayMillis,<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> final int lockTimeoutRetryCount, final String dataDir, final Property[] properties) {<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> this.name = name;<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> this.agents = agents;<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> this.batchSize = batchSize;<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> this.dataDir = dataDir;<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> this.retries = retries;<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> this.connectionTimeout = connectionTimeout;<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> this.requestTimeout = requestTimeout;<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> this.delayMillis = delayMillis;<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> this.lockTimeoutRetryCount = lockTimeoutRetryCount;<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> this.properties = properties;<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> }<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> }<a name="line.369"></a> |
| <span class="sourceLineNo">370</span><a name="line.370"></a> |
| <span class="sourceLineNo">371</span> /**<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> * Avro Manager Factory.<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> */<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> private static class BDBManagerFactory implements ManagerFactory<FlumePersistentManager, FactoryData> {<a name="line.374"></a> |
| <span class="sourceLineNo">375</span><a name="line.375"></a> |
| <span class="sourceLineNo">376</span> /**<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> * Create the FlumeKratiManager.<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> * @param name The name of the entity to manage.<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> * @param data The data required to create the entity.<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> * @return The FlumeKratiManager.<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> */<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> @Override<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> public FlumePersistentManager createManager(final String name, final FactoryData data) {<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> SecretKey secretKey = null;<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> Database database = null;<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> Environment environment = null;<a name="line.386"></a> |
| <span class="sourceLineNo">387</span><a name="line.387"></a> |
| <span class="sourceLineNo">388</span> final Map<String, String> properties = new HashMap<>();<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> if (data.properties != null) {<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> for (final Property property : data.properties) {<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> properties.put(property.getName(), property.getValue());<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> }<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> }<a name="line.393"></a> |
| <span class="sourceLineNo">394</span><a name="line.394"></a> |
| <span class="sourceLineNo">395</span> try {<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> final File dir = new File(data.dataDir);<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> FileUtils.mkdir(dir, true);<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> final EnvironmentConfig dbEnvConfig = new EnvironmentConfig();<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> dbEnvConfig.setTransactional(true);<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> dbEnvConfig.setAllowCreate(true);<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> dbEnvConfig.setLockTimeout(5, TimeUnit.SECONDS);<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> environment = new Environment(dir, dbEnvConfig);<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> final DatabaseConfig dbConfig = new DatabaseConfig();<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> dbConfig.setTransactional(true);<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> dbConfig.setAllowCreate(true);<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> database = environment.openDatabase(null, name, dbConfig);<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> } catch (final Exception ex) {<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> LOGGER.error("Could not create FlumePersistentManager", ex);<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> // For consistency, close database as well as environment even though it should never happen since the<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> // database is that last thing in the block above, but this does guard against a future line being<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> // inserted at the end that would bomb (like some debug logging).<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> if (database != null) {<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> database.close();<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> database = null;<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> }<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> if (environment != null) {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> environment.close();<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> environment = null;<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> }<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> return null;<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> }<a name="line.421"></a> |
| <span class="sourceLineNo">422</span><a name="line.422"></a> |
| <span class="sourceLineNo">423</span> try {<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> String key = null;<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> for (final Map.Entry<String, String> entry : properties.entrySet()) {<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> if (entry.getKey().equalsIgnoreCase(KEY_PROVIDER)) {<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> key = entry.getValue();<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> break;<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> }<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> }<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> if (key != null) {<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> final PluginManager manager = new PluginManager("KeyProvider");<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> manager.collectPlugins();<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> final Map<String, PluginType<?>> plugins = manager.getPlugins();<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> if (plugins != null) {<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> boolean found = false;<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> for (final Map.Entry<String, PluginType<?>> entry : plugins.entrySet()) {<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> if (entry.getKey().equalsIgnoreCase(key)) {<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> found = true;<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> final Class<?> cl = entry.getValue().getPluginClass();<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> try {<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> final SecretKeyProvider provider = (SecretKeyProvider) cl.newInstance();<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> secretKey = provider.getSecretKey();<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> LOGGER.debug("Persisting events using SecretKeyProvider {}", cl.getName());<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> } catch (final Exception ex) {<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> LOGGER.error("Unable to create SecretKeyProvider {}, encryption will be disabled",<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> cl.getName());<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> }<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> break;<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> }<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> }<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> if (!found) {<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> LOGGER.error("Unable to locate SecretKey provider {}, encryption will be disabled", key);<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> LOGGER.error("Unable to locate SecretKey provider {}, encryption will be disabled", key);<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> }<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> }<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> } catch (final Exception ex) {<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> LOGGER.warn("Error setting up encryption - encryption will be disabled", ex);<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> }<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> return new FlumePersistentManager(name, data.name, data.agents, data.batchSize, data.retries,<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> data.connectionTimeout, data.requestTimeout, data.delayMillis, database, environment, secretKey,<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> data.lockTimeoutRetryCount);<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> }<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> }<a name="line.466"></a> |
| <span class="sourceLineNo">467</span><a name="line.467"></a> |
| <span class="sourceLineNo">468</span> /**<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> * Thread that sends data to Flume and pulls it from Berkeley DB.<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> */<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> private static class WriterThread extends Log4jThread {<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> private volatile boolean shutdown = false;<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> private final Database database;<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> private final Environment environment;<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> private final FlumePersistentManager manager;<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> private final Gate gate;<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> private final SecretKey secretKey;<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> private final int batchSize;<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> private final AtomicLong dbCounter;<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> private final int lockTimeoutRetryCount;<a name="line.480"></a> |
| <span class="sourceLineNo">481</span><a name="line.481"></a> |
| <span class="sourceLineNo">482</span> public WriterThread(final Database database, final Environment environment,<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> final FlumePersistentManager manager, final Gate gate, final int batchsize,<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> final SecretKey secretKey, final AtomicLong dbCount, final int lockTimeoutRetryCount) {<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> super("FlumePersistentManager-Writer");<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> this.database = database;<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> this.environment = environment;<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> this.manager = manager;<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> this.gate = gate;<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> this.batchSize = batchsize;<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> this.secretKey = secretKey;<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> this.setDaemon(true);<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> this.dbCounter = dbCount;<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> this.lockTimeoutRetryCount = lockTimeoutRetryCount;<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> }<a name="line.495"></a> |
| <span class="sourceLineNo">496</span><a name="line.496"></a> |
| <span class="sourceLineNo">497</span> public void shutdown() {<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> LOGGER.debug("Writer thread shutting down");<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> this.shutdown = true;<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> gate.open();<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> }<a name="line.501"></a> |
| <span class="sourceLineNo">502</span><a name="line.502"></a> |
| <span class="sourceLineNo">503</span> public boolean isShutdown() {<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> return shutdown;<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> }<a name="line.505"></a> |
| <span class="sourceLineNo">506</span><a name="line.506"></a> |
| <span class="sourceLineNo">507</span> @Override<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> public void run() {<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> LOGGER.trace("WriterThread started - batch size = " + batchSize + ", delayMillis = " + manager.getDelayMillis());<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> long nextBatchMillis = System.currentTimeMillis() + manager.getDelayMillis();<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> while (!shutdown) {<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> final long nowMillis = System.currentTimeMillis();<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> final long dbCount = database.count();<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> dbCounter.set(dbCount);<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> if (dbCount >= batchSize || dbCount > 0 && nextBatchMillis <= nowMillis) {<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> nextBatchMillis = nowMillis + manager.getDelayMillis();<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> try {<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> boolean errors = false;<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> final DatabaseEntry key = new DatabaseEntry();<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> final DatabaseEntry data = new DatabaseEntry();<a name="line.520"></a> |
| <span class="sourceLineNo">521</span><a name="line.521"></a> |
| <span class="sourceLineNo">522</span> gate.close();<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> OperationStatus status;<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> if (batchSize > 1) {<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> try {<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> errors = sendBatch(key, data);<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> } catch (final Exception ex) {<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> break;<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> }<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> } else {<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> Exception exception = null;<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> for (int retryIndex = 0; retryIndex < lockTimeoutRetryCount; ++retryIndex) {<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> exception = null;<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> Transaction txn = null;<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> Cursor cursor = null;<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> try {<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> txn = environment.beginTransaction(null, null);<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> cursor = database.openCursor(txn, null);<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> try {<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> status = cursor.getFirst(key, data, LockMode.RMW);<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> while (status == OperationStatus.SUCCESS) {<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> final SimpleEvent event = createEvent(data);<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> if (event != null) {<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> try {<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> manager.doSend(event);<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> } catch (final Exception ioe) {<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> errors = true;<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> LOGGER.error("Error sending event", ioe);<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> break;<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> }<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> try {<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> cursor.delete();<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> } catch (final Exception ex) {<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> LOGGER.error("Unable to delete event", ex);<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> }<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> }<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> status = cursor.getNext(key, data, LockMode.RMW);<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> }<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> if (cursor != null) {<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> cursor.close();<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> cursor = null;<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> }<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> txn.commit();<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> txn = null;<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> dbCounter.decrementAndGet();<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> exception = null;<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> break;<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> } catch (final LockConflictException lce) {<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> exception = lce;<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> // Fall through and retry.<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> } catch (final Exception ex) {<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> LOGGER.error("Error reading or writing to database", ex);<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> shutdown = true;<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> break;<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> } finally {<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> if (cursor != null) {<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> cursor.close();<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> cursor = null;<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> }<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> if (txn != null) {<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> txn.abort();<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> txn = null;<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> }<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> }<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> } catch (final LockConflictException lce) {<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> exception = lce;<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> if (cursor != null) {<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> try {<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> cursor.close();<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> cursor = null;<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> } catch (final Exception ex) {<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> LOGGER.trace("Ignored exception closing cursor during lock conflict.");<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> }<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> }<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> if (txn != null) {<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> try {<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> txn.abort();<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> txn = null;<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> } catch (final Exception ex) {<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> LOGGER.trace("Ignored exception aborting tx during lock conflict.");<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> }<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> }<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> }<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> try {<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> Thread.sleep(LOCK_TIMEOUT_SLEEP_MILLIS);<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> } catch (final InterruptedException ie) {<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> // Ignore the error<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> }<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> }<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> if (exception != null) {<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> LOGGER.error("Unable to read or update data base", exception);<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> }<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> }<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> if (errors) {<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> Thread.sleep(manager.getDelayMillis());<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> continue;<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> }<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> } catch (final Exception ex) {<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> LOGGER.warn("WriterThread encountered an exception. Continuing.", ex);<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> }<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> } else {<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> if (nextBatchMillis <= nowMillis) {<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> nextBatchMillis = nowMillis + manager.getDelayMillis();<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> }<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> try {<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> final long interval = nextBatchMillis - nowMillis;<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> gate.waitForOpen(interval);<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> } catch (final InterruptedException ie) {<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> LOGGER.warn("WriterThread interrupted, continuing");<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> } catch (final Exception ex) {<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> LOGGER.error("WriterThread encountered an exception waiting for work", ex);<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> break;<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> }<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> }<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> }<a name="line.635"></a> |
| <span class="sourceLineNo">636</span><a name="line.636"></a> |
| <span class="sourceLineNo">637</span> if (batchSize > 1 && database.count() > 0) {<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> final DatabaseEntry key = new DatabaseEntry();<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> final DatabaseEntry data = new DatabaseEntry();<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> try {<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> sendBatch(key, data);<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> } catch (final Exception ex) {<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> LOGGER.warn("Unable to write final batch");<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> }<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> }<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> LOGGER.trace("WriterThread exiting");<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> }<a name="line.647"></a> |
| <span class="sourceLineNo">648</span><a name="line.648"></a> |
| <span class="sourceLineNo">649</span> private boolean sendBatch(DatabaseEntry key, final DatabaseEntry data) throws Exception {<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> boolean errors = false;<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> OperationStatus status;<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> Cursor cursor = null;<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> try {<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> final BatchEvent batch = new BatchEvent();<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> for (int retryIndex = 0; retryIndex < lockTimeoutRetryCount; ++retryIndex) {<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> try {<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> cursor = database.openCursor(null, CursorConfig.DEFAULT);<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> status = cursor.getFirst(key, data, null);<a name="line.658"></a> |
| <span class="sourceLineNo">659</span><a name="line.659"></a> |
| <span class="sourceLineNo">660</span> for (int i = 0; status == OperationStatus.SUCCESS && i < batchSize; ++i) {<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> final SimpleEvent event = createEvent(data);<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> if (event != null) {<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> batch.addEvent(event);<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> }<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> status = cursor.getNext(key, data, null);<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> }<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> break;<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> } catch (final LockConflictException lce) {<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> if (cursor != null) {<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> try {<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> cursor.close();<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> cursor = null;<a name="line.672"></a> |
| <span class="sourceLineNo">673</span> } catch (final Exception ex) {<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> LOGGER.trace("Ignored exception closing cursor during lock conflict.");<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> }<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> }<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> }<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> }<a name="line.678"></a> |
| <span class="sourceLineNo">679</span><a name="line.679"></a> |
| <span class="sourceLineNo">680</span> try {<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> manager.send(batch);<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> } catch (final Exception ioe) {<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> LOGGER.error("Error sending events", ioe);<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> errors = true;<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> }<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> if (!errors) {<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> if (cursor != null) {<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> cursor.close();<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> cursor = null;<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> }<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> Transaction txn = null;<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> Exception exception = null;<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> for (int retryIndex = 0; retryIndex < lockTimeoutRetryCount; ++retryIndex) {<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> try {<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> txn = environment.beginTransaction(null, null);<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> try {<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> for (final Event event : batch.getEvents()) {<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> try {<a name="line.698"></a> |
| <span class="sourceLineNo">699</span> final Map<String, String> headers = event.getHeaders();<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> key = new DatabaseEntry(headers.get(FlumeEvent.GUID).getBytes(UTF8));<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> database.delete(txn, key);<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> } catch (final Exception ex) {<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> LOGGER.error("Error deleting key from database", ex);<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> }<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> }<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> txn.commit();<a name="line.706"></a> |
| <span class="sourceLineNo">707</span> long count = dbCounter.get();<a name="line.707"></a> |
| <span class="sourceLineNo">708</span> while (!dbCounter.compareAndSet(count, count - batch.getEvents().size())) {<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> count = dbCounter.get();<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> }<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> exception = null;<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> break;<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> } catch (final LockConflictException lce) {<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> exception = lce;<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> if (cursor != null) {<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> try {<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> cursor.close();<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> cursor = null;<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> } catch (final Exception ex) {<a name="line.719"></a> |
| <span class="sourceLineNo">720</span> LOGGER.trace("Ignored exception closing cursor during lock conflict.");<a name="line.720"></a> |
| <span class="sourceLineNo">721</span> }<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> }<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> if (txn != null) {<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> try {<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> txn.abort();<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> txn = null;<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> } catch (final Exception ex) {<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> LOGGER.trace("Ignored exception aborting transaction during lock conflict.");<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> } catch (final Exception ex) {<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> LOGGER.error("Unable to commit transaction", ex);<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> if (txn != null) {<a name="line.733"></a> |
| <span class="sourceLineNo">734</span> txn.abort();<a name="line.734"></a> |
| <span class="sourceLineNo">735</span> }<a name="line.735"></a> |
| <span class="sourceLineNo">736</span> }<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> } catch (final LockConflictException lce) {<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> exception = lce;<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> if (cursor != null) {<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> try {<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> cursor.close();<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> cursor = null;<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> } catch (final Exception ex) {<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> LOGGER.trace("Ignored exception closing cursor during lock conflict.");<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> }<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> }<a name="line.746"></a> |
| <span class="sourceLineNo">747</span> if (txn != null) {<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> try {<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> txn.abort();<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> txn = null;<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> } catch (final Exception ex) {<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> LOGGER.trace("Ignored exception aborting transaction during lock conflict.");<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> }<a name="line.753"></a> |
| <span class="sourceLineNo">754</span> }<a name="line.754"></a> |
| <span class="sourceLineNo">755</span> } finally {<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> if (cursor != null) {<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> cursor.close();<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> cursor = null;<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> }<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> if (txn != null) {<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> txn.abort();<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> txn = null;<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> }<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> }<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> try {<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> Thread.sleep(LOCK_TIMEOUT_SLEEP_MILLIS);<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> } catch (final InterruptedException ie) {<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> // Ignore the error<a name="line.768"></a> |
| <span class="sourceLineNo">769</span> }<a name="line.769"></a> |
| <span class="sourceLineNo">770</span> }<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> if (exception != null) {<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> LOGGER.error("Unable to delete events from data base", exception);<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> }<a name="line.773"></a> |
| <span class="sourceLineNo">774</span> }<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> } catch (final Exception ex) {<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> LOGGER.error("Error reading database", ex);<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> shutdown = true;<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> throw ex;<a name="line.778"></a> |
| <span class="sourceLineNo">779</span> } finally {<a name="line.779"></a> |
| <span class="sourceLineNo">780</span> if (cursor != null) {<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> cursor.close();<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> }<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> }<a name="line.783"></a> |
| <span class="sourceLineNo">784</span><a name="line.784"></a> |
| <span class="sourceLineNo">785</span> return errors;<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> }<a name="line.786"></a> |
| <span class="sourceLineNo">787</span><a name="line.787"></a> |
| <span class="sourceLineNo">788</span> private SimpleEvent createEvent(final DatabaseEntry data) {<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> final SimpleEvent event = new SimpleEvent();<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> try {<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> byte[] eventData = data.getData();<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> if (secretKey != null) {<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> final Cipher cipher = Cipher.getInstance("AES");<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> cipher.init(Cipher.DECRYPT_MODE, secretKey);<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> eventData = cipher.doFinal(eventData);<a name="line.795"></a> |
| <span class="sourceLineNo">796</span> }<a name="line.796"></a> |
| <span class="sourceLineNo">797</span> final ByteArrayInputStream bais = new ByteArrayInputStream(eventData);<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> final DataInputStream dais = new DataInputStream(bais);<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> int length = dais.readInt();<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> final byte[] bytes = new byte[length];<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> dais.read(bytes, 0, length);<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> event.setBody(bytes);<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> length = dais.readInt();<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> final Map<String, String> map = new HashMap<>(length);<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> for (int i = 0; i < length; ++i) {<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> final String headerKey = dais.readUTF();<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> final String value = dais.readUTF();<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> map.put(headerKey, value);<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> }<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> event.setHeaders(map);<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> return event;<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> } catch (final Exception ex) {<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> LOGGER.error("Error retrieving event", ex);<a name="line.813"></a> |
| <span class="sourceLineNo">814</span> return null;<a name="line.814"></a> |
| <span class="sourceLineNo">815</span> }<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> }<a name="line.816"></a> |
| <span class="sourceLineNo">817</span><a name="line.817"></a> |
| <span class="sourceLineNo">818</span> }<a name="line.818"></a> |
| <span class="sourceLineNo">819</span><a name="line.819"></a> |
| <span class="sourceLineNo">820</span> /**<a name="line.820"></a> |
| <span class="sourceLineNo">821</span> * An internal class.<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> */<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> private static class Gate {<a name="line.823"></a> |
| <span class="sourceLineNo">824</span><a name="line.824"></a> |
| <span class="sourceLineNo">825</span> private boolean isOpen = false;<a name="line.825"></a> |
| <span class="sourceLineNo">826</span><a name="line.826"></a> |
| <span class="sourceLineNo">827</span> public boolean isOpen() {<a name="line.827"></a> |
| <span class="sourceLineNo">828</span> return isOpen;<a name="line.828"></a> |
| <span class="sourceLineNo">829</span> }<a name="line.829"></a> |
| <span class="sourceLineNo">830</span><a name="line.830"></a> |
| <span class="sourceLineNo">831</span> public synchronized void open() {<a name="line.831"></a> |
| <span class="sourceLineNo">832</span> isOpen = true;<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> notifyAll();<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> }<a name="line.834"></a> |
| <span class="sourceLineNo">835</span><a name="line.835"></a> |
| <span class="sourceLineNo">836</span> public synchronized void close() {<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> isOpen = false;<a name="line.837"></a> |
| <span class="sourceLineNo">838</span> }<a name="line.838"></a> |
| <span class="sourceLineNo">839</span><a name="line.839"></a> |
| <span class="sourceLineNo">840</span> public synchronized void waitForOpen(final long timeout) throws InterruptedException {<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> wait(timeout);<a name="line.841"></a> |
| <span class="sourceLineNo">842</span> }<a name="line.842"></a> |
| <span class="sourceLineNo">843</span> }<a name="line.843"></a> |
| <span class="sourceLineNo">844</span>}<a name="line.844"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
