http://git-wip-us.apache.org/repos/asf/hbase-site/blob/539ad177/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html b/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html index 174b98f..c847641 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.html @@ -111,543 +111,549 @@ <span class="sourceLineNo">103</span> */<a name="line.103"></a> <span class="sourceLineNo">104</span> private static Set<String> coprocessorNames =<a name="line.104"></a> <span class="sourceLineNo">105</span> Collections.synchronizedSet(new HashSet<String>());<a name="line.105"></a> -<span class="sourceLineNo">106</span> public static Set<String> getLoadedCoprocessors() {<a name="line.106"></a> -<span class="sourceLineNo">107</span> return coprocessorNames;<a name="line.107"></a> -<span class="sourceLineNo">108</span> }<a name="line.108"></a> -<span class="sourceLineNo">109</span><a name="line.109"></a> -<span class="sourceLineNo">110</span> /**<a name="line.110"></a> -<span class="sourceLineNo">111</span> * Used to create a parameter to the HServerLoad constructor so that<a name="line.111"></a> -<span class="sourceLineNo">112</span> * HServerLoad can provide information about the coprocessors loaded by this<a name="line.112"></a> -<span class="sourceLineNo">113</span> * regionserver.<a name="line.113"></a> -<span class="sourceLineNo">114</span> * (HBASE-4070: Improve region server metrics to report loaded coprocessors<a name="line.114"></a> -<span class="sourceLineNo">115</span> * to master).<a name="line.115"></a> -<span class="sourceLineNo">116</span> */<a name="line.116"></a> -<span class="sourceLineNo">117</span> public Set<String> getCoprocessors() {<a name="line.117"></a> -<span class="sourceLineNo">118</span> Set<String> returnValue = new TreeSet<String>();<a name="line.118"></a> -<span class="sourceLineNo">119</span> for (CoprocessorEnvironment e: coprocessors) {<a name="line.119"></a> -<span class="sourceLineNo">120</span> returnValue.add(e.getInstance().getClass().getSimpleName());<a name="line.120"></a> -<span class="sourceLineNo">121</span> }<a name="line.121"></a> -<span class="sourceLineNo">122</span> return returnValue;<a name="line.122"></a> -<span class="sourceLineNo">123</span> }<a name="line.123"></a> -<span class="sourceLineNo">124</span><a name="line.124"></a> -<span class="sourceLineNo">125</span> /**<a name="line.125"></a> -<span class="sourceLineNo">126</span> * Load system coprocessors once only. Read the class names from configuration.<a name="line.126"></a> -<span class="sourceLineNo">127</span> * Called by constructor.<a name="line.127"></a> -<span class="sourceLineNo">128</span> */<a name="line.128"></a> -<span class="sourceLineNo">129</span> protected void loadSystemCoprocessors(Configuration conf, String confKey) {<a name="line.129"></a> -<span class="sourceLineNo">130</span> boolean coprocessorsEnabled = conf.getBoolean(COPROCESSORS_ENABLED_CONF_KEY,<a name="line.130"></a> -<span class="sourceLineNo">131</span> DEFAULT_COPROCESSORS_ENABLED);<a name="line.131"></a> -<span class="sourceLineNo">132</span> if (!coprocessorsEnabled) {<a name="line.132"></a> -<span class="sourceLineNo">133</span> return;<a name="line.133"></a> -<span class="sourceLineNo">134</span> }<a name="line.134"></a> -<span class="sourceLineNo">135</span><a name="line.135"></a> -<span class="sourceLineNo">136</span> Class<?> implClass = null;<a name="line.136"></a> -<span class="sourceLineNo">137</span><a name="line.137"></a> -<span class="sourceLineNo">138</span> // load default coprocessors from configure file<a name="line.138"></a> -<span class="sourceLineNo">139</span> String[] defaultCPClasses = conf.getStrings(confKey);<a name="line.139"></a> -<span class="sourceLineNo">140</span> if (defaultCPClasses == null || defaultCPClasses.length == 0)<a name="line.140"></a> -<span class="sourceLineNo">141</span> return;<a name="line.141"></a> -<span class="sourceLineNo">142</span><a name="line.142"></a> -<span class="sourceLineNo">143</span> int priority = Coprocessor.PRIORITY_SYSTEM;<a name="line.143"></a> -<span class="sourceLineNo">144</span> for (String className : defaultCPClasses) {<a name="line.144"></a> -<span class="sourceLineNo">145</span> className = className.trim();<a name="line.145"></a> -<span class="sourceLineNo">146</span> if (findCoprocessor(className) != null) {<a name="line.146"></a> -<span class="sourceLineNo">147</span> // If already 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* Load a coprocessor implementation into the host<a name="line.168"></a> -<span class="sourceLineNo">169</span> * @param path path to implementation jar<a name="line.169"></a> -<span class="sourceLineNo">170</span> * @param className the main class name<a name="line.170"></a> -<span class="sourceLineNo">171</span> * @param priority chaining priority<a name="line.171"></a> -<span class="sourceLineNo">172</span> * @param conf configuration for coprocessor<a name="line.172"></a> -<span class="sourceLineNo">173</span> * @throws java.io.IOException Exception<a name="line.173"></a> -<span class="sourceLineNo">174</span> */<a name="line.174"></a> -<span class="sourceLineNo">175</span> public E load(Path path, String className, int priority,<a name="line.175"></a> -<span class="sourceLineNo">176</span> Configuration conf) throws IOException {<a name="line.176"></a> -<span class="sourceLineNo">177</span> Class<?> implClass = null;<a name="line.177"></a> -<span class="sourceLineNo">178</span> 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class="sourceLineNo">140</span><a name="line.140"></a> +<span class="sourceLineNo">141</span> // load default coprocessors from configure file<a name="line.141"></a> +<span class="sourceLineNo">142</span> String[] defaultCPClasses = conf.getStrings(confKey);<a name="line.142"></a> +<span class="sourceLineNo">143</span> if (defaultCPClasses == null || defaultCPClasses.length == 0)<a name="line.143"></a> +<span class="sourceLineNo">144</span> return;<a name="line.144"></a> +<span class="sourceLineNo">145</span><a name="line.145"></a> +<span class="sourceLineNo">146</span> int priority = Coprocessor.PRIORITY_SYSTEM;<a name="line.146"></a> +<span class="sourceLineNo">147</span> for (String className : defaultCPClasses) {<a name="line.147"></a> +<span class="sourceLineNo">148</span> className = className.trim();<a name="line.148"></a> +<span class="sourceLineNo">149</span> if (findCoprocessor(className) != null) {<a name="line.149"></a> +<span class="sourceLineNo">150</span> // If already 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this.coprocessors.add(loadInstance(implClass, Coprocessor.PRIORITY_SYSTEM, conf));<a name="line.160"></a> +<span class="sourceLineNo">161</span> LOG.info("System coprocessor " + className + " was loaded " +<a name="line.161"></a> +<span class="sourceLineNo">162</span> "successfully with priority (" + priority++ + ").");<a name="line.162"></a> +<span class="sourceLineNo">163</span> } catch (Throwable t) {<a name="line.163"></a> +<span class="sourceLineNo">164</span> // We always abort if system coprocessors cannot be loaded<a name="line.164"></a> +<span class="sourceLineNo">165</span> abortServer(className, t);<a name="line.165"></a> +<span class="sourceLineNo">166</span> }<a name="line.166"></a> +<span class="sourceLineNo">167</span> }<a name="line.167"></a> +<span class="sourceLineNo">168</span> }<a name="line.168"></a> +<span class="sourceLineNo">169</span><a name="line.169"></a> +<span class="sourceLineNo">170</span> /**<a name="line.170"></a> +<span class="sourceLineNo">171</span> * Load a coprocessor implementation into the host<a name="line.171"></a> +<span class="sourceLineNo">172</span> * @param path path to implementation jar<a name="line.172"></a> +<span class="sourceLineNo">173</span> * @param className the main class name<a name="line.173"></a> +<span class="sourceLineNo">174</span> * @param priority chaining priority<a name="line.174"></a> +<span class="sourceLineNo">175</span> * @param conf configuration for coprocessor<a name="line.175"></a> +<span class="sourceLineNo">176</span> * @throws java.io.IOException Exception<a name="line.176"></a> +<span class="sourceLineNo">177</span> */<a name="line.177"></a> +<span class="sourceLineNo">178</span> public E load(Path path, String className, int priority,<a name="line.178"></a> +<span class="sourceLineNo">179</span> Configuration conf) throws IOException {<a name="line.179"></a> +<span class="sourceLineNo">180</span> Class<?> implClass = null;<a name="line.180"></a> +<span class="sourceLineNo">181</span> LOG.debug("Loading coprocessor class " + className + " with path " +<a name="line.181"></a> +<span class="sourceLineNo">182</span> path + " and priority " + priority);<a name="line.182"></a> +<span class="sourceLineNo">183</span><a name="line.183"></a> +<span class="sourceLineNo">184</span> ClassLoader cl = null;<a name="line.184"></a> +<span class="sourceLineNo">185</span> if (path == null) {<a name="line.185"></a> +<span class="sourceLineNo">186</span> try {<a name="line.186"></a> +<span class="sourceLineNo">187</span> implClass = getClass().getClassLoader().loadClass(className);<a name="line.187"></a> +<span class="sourceLineNo">188</span> } catch (ClassNotFoundException e) {<a name="line.188"></a> +<span class="sourceLineNo">189</span> throw new IOException("No jar path specified for " + className);<a name="line.189"></a> +<span class="sourceLineNo">190</span> }<a name="line.190"></a> +<span class="sourceLineNo">191</span> } else {<a name="line.191"></a> +<span class="sourceLineNo">192</span> cl = CoprocessorClassLoader.getClassLoader(<a name="line.192"></a> +<span class="sourceLineNo">193</span> path, getClass().getClassLoader(), pathPrefix, conf);<a name="line.193"></a> +<span class="sourceLineNo">194</span> try {<a name="line.194"></a> +<span class="sourceLineNo">195</span> implClass = cl.loadClass(className);<a name="line.195"></a> +<span class="sourceLineNo">196</span> } catch (ClassNotFoundException e) {<a name="line.196"></a> +<span class="sourceLineNo">197</span> throw new IOException("Cannot load external coprocessor class " + className, e);<a name="line.197"></a> +<span class="sourceLineNo">198</span> }<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> //load custom code for coprocessor<a name="line.201"></a> +<span class="sourceLineNo">202</span> Thread currentThread = Thread.currentThread();<a name="line.202"></a> +<span class="sourceLineNo">203</span> ClassLoader hostClassLoader = currentThread.getContextClassLoader();<a name="line.203"></a> +<span class="sourceLineNo">204</span> try{<a name="line.204"></a> +<span class="sourceLineNo">205</span> // switch temporarily to the thread classloader for custom CP<a name="line.205"></a> +<span class="sourceLineNo">206</span> currentThread.setContextClassLoader(cl);<a name="line.206"></a> +<span class="sourceLineNo">207</span> E cpInstance = loadInstance(implClass, priority, conf);<a name="line.207"></a> +<span class="sourceLineNo">208</span> return cpInstance;<a name="line.208"></a> +<span class="sourceLineNo">209</span> } finally {<a name="line.209"></a> +<span class="sourceLineNo">210</span> // restore the fresh (host) classloader<a name="line.210"></a> +<span class="sourceLineNo">211</span> currentThread.setContextClassLoader(hostClassLoader);<a name="line.211"></a> +<span class="sourceLineNo">212</span> }<a name="line.212"></a> +<span class="sourceLineNo">213</span> }<a name="line.213"></a> +<span class="sourceLineNo">214</span><a name="line.214"></a> +<span class="sourceLineNo">215</span> /**<a name="line.215"></a> +<span class="sourceLineNo">216</span> * @param implClass Implementation class<a name="line.216"></a> +<span class="sourceLineNo">217</span> * @param priority priority<a name="line.217"></a> +<span class="sourceLineNo">218</span> * @param conf configuration<a name="line.218"></a> +<span class="sourceLineNo">219</span> * @throws java.io.IOException Exception<a name="line.219"></a> +<span class="sourceLineNo">220</span> */<a name="line.220"></a> +<span class="sourceLineNo">221</span> public void load(Class<?> implClass, int priority, Configuration conf)<a name="line.221"></a> +<span class="sourceLineNo">222</span> throws IOException {<a name="line.222"></a> +<span class="sourceLineNo">223</span> E env = loadInstance(implClass, priority, conf);<a name="line.223"></a> +<span class="sourceLineNo">224</span> coprocessors.add(env);<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> * @param implClass Implementation class<a name="line.228"></a> +<span class="sourceLineNo">229</span> * @param priority priority<a name="line.229"></a> +<span class="sourceLineNo">230</span> * @param conf configuration<a name="line.230"></a> +<span class="sourceLineNo">231</span> * @throws java.io.IOException Exception<a name="line.231"></a> +<span class="sourceLineNo">232</span> */<a name="line.232"></a> +<span class="sourceLineNo">233</span> public E loadInstance(Class<?> implClass, int priority, Configuration conf)<a name="line.233"></a> +<span class="sourceLineNo">234</span> throws IOException {<a name="line.234"></a> +<span class="sourceLineNo">235</span> if (!Coprocessor.class.isAssignableFrom(implClass)) {<a name="line.235"></a> +<span class="sourceLineNo">236</span> throw new IOException("Configured class " + implClass.getName() + " must implement "<a name="line.236"></a> +<span class="sourceLineNo">237</span> + Coprocessor.class.getName() + " interface ");<a name="line.237"></a> +<span class="sourceLineNo">238</span> }<a name="line.238"></a> +<span class="sourceLineNo">239</span><a name="line.239"></a> +<span class="sourceLineNo">240</span> // create the instance<a name="line.240"></a> +<span class="sourceLineNo">241</span> Coprocessor impl;<a name="line.241"></a> +<span class="sourceLineNo">242</span> Object o = null;<a name="line.242"></a> +<span class="sourceLineNo">243</span> try {<a name="line.243"></a> +<span class="sourceLineNo">244</span> o = implClass.newInstance();<a name="line.244"></a> +<span class="sourceLineNo">245</span> impl = (Coprocessor)o;<a name="line.245"></a> +<span class="sourceLineNo">246</span> } catch (InstantiationException e) {<a name="line.246"></a> +<span class="sourceLineNo">247</span> throw new IOException(e);<a name="line.247"></a> +<span class="sourceLineNo">248</span> } catch (IllegalAccessException e) {<a name="line.248"></a> +<span class="sourceLineNo">249</span> throw new IOException(e);<a name="line.249"></a> +<span class="sourceLineNo">250</span> }<a name="line.250"></a> +<span class="sourceLineNo">251</span> // create the environment<a name="line.251"></a> +<span class="sourceLineNo">252</span> E env = createEnvironment(implClass, impl, priority, loadSequence.incrementAndGet(), conf);<a name="line.252"></a> +<span class="sourceLineNo">253</span> if (env instanceof Environment) {<a name="line.253"></a> +<span class="sourceLineNo">254</span> ((Environment)env).startup();<a name="line.254"></a> +<span class="sourceLineNo">255</span> }<a name="line.255"></a> +<span class="sourceLineNo">256</span> // HBASE-4014: maintain list of loaded coprocessors for later crash 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class="sourceLineNo">279</span><a name="line.279"></a> +<span class="sourceLineNo">280</span> /**<a name="line.280"></a> +<span class="sourceLineNo">281</span> * Find a coprocessor implementation by class name<a name="line.281"></a> +<span class="sourceLineNo">282</span> * @param className the class name<a name="line.282"></a> +<span class="sourceLineNo">283</span> * @return the coprocessor, or null if not found<a name="line.283"></a> +<span class="sourceLineNo">284</span> */<a name="line.284"></a> +<span class="sourceLineNo">285</span> public Coprocessor findCoprocessor(String className) {<a name="line.285"></a> +<span class="sourceLineNo">286</span> for (E env: coprocessors) {<a name="line.286"></a> +<span class="sourceLineNo">287</span> if (env.getInstance().getClass().getName().equals(className) ||<a name="line.287"></a> +<span class="sourceLineNo">288</span> env.getInstance().getClass().getSimpleName().equals(className)) {<a name="line.288"></a> +<span 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class="sourceLineNo">346</span> * Environment priority comparator.<a name="line.346"></a> -<span class="sourceLineNo">347</span> * Coprocessors are chained in sorted order.<a name="line.347"></a> -<span class="sourceLineNo">348</span> */<a name="line.348"></a> -<span class="sourceLineNo">349</span> static class EnvironmentPriorityComparator<a name="line.349"></a> -<span class="sourceLineNo">350</span> implements Comparator<CoprocessorEnvironment> {<a name="line.350"></a> -<span class="sourceLineNo">351</span> public int compare(final CoprocessorEnvironment env1,<a name="line.351"></a> -<span class="sourceLineNo">352</span> final CoprocessorEnvironment env2) {<a name="line.352"></a> -<span class="sourceLineNo">353</span> if (env1.getPriority() < env2.getPriority()) {<a name="line.353"></a> -<span class="sourceLineNo">354</span> return -1;<a name="line.354"></a> -<span class="sourceLineNo">355</span> } else if (env1.getPriority() > env2.getPriority()) {<a name="line.355"></a> -<span 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-<span class="sourceLineNo">379</span> protected List<Table> openTables =<a name="line.379"></a> -<span class="sourceLineNo">380</span> Collections.synchronizedList(new ArrayList<Table>());<a name="line.380"></a> -<span class="sourceLineNo">381</span> private int seq;<a name="line.381"></a> -<span class="sourceLineNo">382</span> private Configuration conf;<a name="line.382"></a> -<span class="sourceLineNo">383</span> private ClassLoader classLoader;<a name="line.383"></a> -<span class="sourceLineNo">384</span><a name="line.384"></a> -<span class="sourceLineNo">385</span> /**<a name="line.385"></a> -<span class="sourceLineNo">386</span> * Constructor<a name="line.386"></a> -<span class="sourceLineNo">387</span> * @param impl the coprocessor instance<a name="line.387"></a> -<span class="sourceLineNo">388</span> * @param priority chaining priority<a name="line.388"></a> -<span class="sourceLineNo">389</span> */<a name="line.389"></a> -<span class="sourceLineNo">390</span> public 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void startup() throws IOException {<a name="line.401"></a> -<span class="sourceLineNo">402</span> if (state == Coprocessor.State.INSTALLED ||<a name="line.402"></a> -<span class="sourceLineNo">403</span> state == Coprocessor.State.STOPPED) {<a name="line.403"></a> -<span class="sourceLineNo">404</span> state = Coprocessor.State.STARTING;<a name="line.404"></a> -<span class="sourceLineNo">405</span> Thread currentThread = Thread.currentThread();<a name="line.405"></a> -<span class="sourceLineNo">406</span> ClassLoader hostClassLoader = currentThread.getContextClassLoader();<a name="line.406"></a> -<span class="sourceLineNo">407</span> try {<a name="line.407"></a> -<span class="sourceLineNo">408</span> currentThread.setContextClassLoader(this.getClassLoader());<a name="line.408"></a> -<span class="sourceLineNo">409</span> impl.start(this);<a name="line.409"></a> -<span class="sourceLineNo">410</span> state = Coprocessor.State.ACTIVE;<a name="line.410"></a> -<span class="sourceLineNo">411</span> } finally {<a name="line.411"></a> -<span class="sourceLineNo">412</span> currentThread.setContextClassLoader(hostClassLoader);<a name="line.412"></a> -<span class="sourceLineNo">413</span> }<a name="line.413"></a> -<span class="sourceLineNo">414</span> } else {<a name="line.414"></a> -<span class="sourceLineNo">415</span> LOG.warn("Not starting coprocessor "+impl.getClass().getName()+<a name="line.415"></a> -<span class="sourceLineNo">416</span> " because not inactive (state="+state.toString()+")");<a name="line.416"></a> -<span class="sourceLineNo">417</span> }<a name="line.417"></a> -<span class="sourceLineNo">418</span> }<a name="line.418"></a> -<span class="sourceLineNo">419</span><a name="line.419"></a> -<span class="sourceLineNo">420</span> /** Clean up the environment */<a name="line.420"></a> -<span class="sourceLineNo">421</span> protected void shutdown() {<a name="line.421"></a> -<span class="sourceLineNo">422</span> if (state == 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class="sourceLineNo">432</span> } finally {<a name="line.432"></a> -<span class="sourceLineNo">433</span> currentThread.setContextClassLoader(hostClassLoader);<a name="line.433"></a> -<span class="sourceLineNo">434</span> }<a name="line.434"></a> -<span class="sourceLineNo">435</span> } else {<a name="line.435"></a> -<span class="sourceLineNo">436</span> LOG.warn("Not stopping coprocessor "+impl.getClass().getName()+<a name="line.436"></a> -<span class="sourceLineNo">437</span> " because not active (state="+state.toString()+")");<a name="line.437"></a> -<span class="sourceLineNo">438</span> }<a name="line.438"></a> -<span class="sourceLineNo">439</span> // clean up any table references<a name="line.439"></a> -<span class="sourceLineNo">440</span> for (Table table: openTables) {<a name="line.440"></a> -<span class="sourceLineNo">441</span> try {<a name="line.441"></a> -<span class="sourceLineNo">442</span> ((HTableWrapper)table).internalClose();<a name="line.442"></a> -<span 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class="sourceLineNo">456</span> @Override<a name="line.456"></a> -<span class="sourceLineNo">457</span> public ClassLoader getClassLoader() {<a name="line.457"></a> -<span class="sourceLineNo">458</span> return classLoader;<a name="line.458"></a> -<span class="sourceLineNo">459</span> }<a name="line.459"></a> -<span class="sourceLineNo">460</span><a name="line.460"></a> -<span class="sourceLineNo">461</span> @Override<a name="line.461"></a> -<span class="sourceLineNo">462</span> public int getPriority() {<a name="line.462"></a> -<span class="sourceLineNo">463</span> return priority;<a name="line.463"></a> -<span class="sourceLineNo">464</span> }<a name="line.464"></a> -<span class="sourceLineNo">465</span><a name="line.465"></a> -<span class="sourceLineNo">466</span> @Override<a name="line.466"></a> -<span class="sourceLineNo">467</span> public int getLoadSequence() {<a name="line.467"></a> -<span class="sourceLineNo">468</span> return seq;<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> /** @return the coprocessor environment version */<a name="line.471"></a> +<span class="sourceLineNo">303</span> for (E env: coprocessors) {<a name="line.303"></a> +<span class="sourceLineNo">304</span> Coprocessor cp = env.getInstance();<a name="line.304"></a> +<span class="sourceLineNo">305</span><a name="line.305"></a> +<span class="sourceLineNo">306</span> if(cp != null) {<a name="line.306"></a> +<span class="sourceLineNo">307</span> if (cls.isAssignableFrom(cp.getClass())) {<a name="line.307"></a> +<span class="sourceLineNo">308</span> ret.add((T)cp);<a name="line.308"></a> +<span class="sourceLineNo">309</span> }<a name="line.309"></a> +<span class="sourceLineNo">310</span> }<a name="line.310"></a> +<span class="sourceLineNo">311</span> }<a name="line.311"></a> +<span class="sourceLineNo">312</span> return ret;<a name="line.312"></a> +<span class="sourceLineNo">313</span> }<a name="line.313"></a> +<span class="sourceLineNo">314</span><a name="line.314"></a> +<span class="sourceLineNo">315</span> /**<a name="line.315"></a> +<span class="sourceLineNo">316</span> * Find a coprocessor environment by class name<a name="line.316"></a> +<span class="sourceLineNo">317</span> * @param className the class name<a name="line.317"></a> +<span class="sourceLineNo">318</span> * @return the coprocessor, or null if not found<a name="line.318"></a> +<span class="sourceLineNo">319</span> */<a name="line.319"></a> +<span class="sourceLineNo">320</span> public CoprocessorEnvironment findCoprocessorEnvironment(String className) {<a name="line.320"></a> +<span class="sourceLineNo">321</span> for (E env: coprocessors) {<a name="line.321"></a> +<span class="sourceLineNo">322</span> if (env.getInstance().getClass().getName().equals(className) ||<a name="line.322"></a> +<span class="sourceLineNo">323</span> env.getInstance().getClass().getSimpleName().equals(className)) {<a name="line.323"></a> +<span class="sourceLineNo">324</span> return env;<a name="line.324"></a> +<span class="sourceLineNo">325</span> }<a name="line.325"></a> +<span class="sourceLineNo">326</span> }<a name="line.326"></a> +<span class="sourceLineNo">327</span> return null;<a name="line.327"></a> +<span class="sourceLineNo">328</span> }<a name="line.328"></a> +<span class="sourceLineNo">329</span><a name="line.329"></a> +<span class="sourceLineNo">330</span> /**<a name="line.330"></a> +<span class="sourceLineNo">331</span> * Retrieves the set of classloaders used to instantiate Coprocessor classes defined in external<a name="line.331"></a> +<span class="sourceLineNo">332</span> * jar files.<a name="line.332"></a> +<span class="sourceLineNo">333</span> * @return A set of ClassLoader instances<a name="line.333"></a> +<span class="sourceLineNo">334</span> */<a name="line.334"></a> +<span class="sourceLineNo">335</span> Set<ClassLoader> getExternalClassLoaders() {<a name="line.335"></a> +<span class="sourceLineNo">336</span> Set<ClassLoader> externalClassLoaders = new HashSet<ClassLoader>();<a name="line.336"></a> +<span class="sourceLineNo">337</span> final ClassLoader systemClassLoader = this.getClass().getClassLoader();<a name="line.337"></a> +<span class="sourceLineNo">338</span> for (E env : coprocessors) {<a name="line.338"></a> +<span class="sourceLineNo">339</span> ClassLoader cl = env.getInstance().getClass().getClassLoader();<a name="line.339"></a> +<span class="sourceLineNo">340</span> if (cl != systemClassLoader){<a name="line.340"></a> +<span class="sourceLineNo">341</span> //do not include system classloader<a name="line.341"></a> +<span class="sourceLineNo">342</span> externalClassLoaders.add(cl);<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> return externalClassLoaders;<a name="line.345"></a> +<span class="sourceLineNo">346</span> }<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> * Environment priority comparator.<a name="line.349"></a> +<span class="sourceLineNo">350</span> * Coprocessors are chained in sorted order.<a name="line.350"></a> +<span class="sourceLineNo">351</span> */<a name="line.351"></a> +<span class="sourceLineNo">352</span> static class EnvironmentPriorityComparator<a name="line.352"></a> +<span class="sourceLineNo">353</span> implements Comparator<CoprocessorEnvironment> {<a name="line.353"></a> +<span class="sourceLineNo">354</span> @Override<a name="line.354"></a> +<span class="sourceLineNo">355</span> public int compare(final CoprocessorEnvironment env1,<a name="line.355"></a> +<span class="sourceLineNo">356</span> final CoprocessorEnvironment env2) {<a 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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> * Encapsulation of the environment of each coprocessor<a name="line.372"></a> +<span class="sourceLineNo">373</span> */<a name="line.373"></a> +<span class="sourceLineNo">374</span> public static class Environment implements CoprocessorEnvironment {<a name="line.374"></a> +<span class="sourceLineNo">375</span><a name="line.375"></a> +<span class="sourceLineNo">376</span> /** The coprocessor */<a name="line.376"></a> +<span class="sourceLineNo">377</span> public Coprocessor impl;<a name="line.377"></a> +<span class="sourceLineNo">378</span> /** Chaining priority */<a name="line.378"></a> +<span class="sourceLineNo">379</span> protected int priority = Coprocessor.PRIORITY_USER;<a name="line.379"></a> 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class="sourceLineNo">401</span> this.conf = conf;<a name="line.401"></a> +<span class="sourceLineNo">402</span> }<a name="line.402"></a> +<span class="sourceLineNo">403</span><a name="line.403"></a> +<span class="sourceLineNo">404</span> /** Initialize the environment */<a name="line.404"></a> +<span class="sourceLineNo">405</span> public void startup() throws IOException {<a name="line.405"></a> +<span class="sourceLineNo">406</span> if (state == Coprocessor.State.INSTALLED ||<a name="line.406"></a> +<span class="sourceLineNo">407</span> state == Coprocessor.State.STOPPED) {<a name="line.407"></a> +<span class="sourceLineNo">408</span> state = Coprocessor.State.STARTING;<a name="line.408"></a> +<span class="sourceLineNo">409</span> Thread currentThread = Thread.currentThread();<a name="line.409"></a> +<span class="sourceLineNo">410</span> ClassLoader hostClassLoader = currentThread.getContextClassLoader();<a name="line.410"></a> +<span class="sourceLineNo">411</span> try {<a name="line.411"></a> +<span class="sourceLineNo">412</span> currentThread.setContextClassLoader(this.getClassLoader());<a name="line.412"></a> +<span class="sourceLineNo">413</span> impl.start(this);<a name="line.413"></a> +<span class="sourceLineNo">414</span> state = Coprocessor.State.ACTIVE;<a name="line.414"></a> +<span class="sourceLineNo">415</span> } finally {<a name="line.415"></a> +<span class="sourceLineNo">416</span> currentThread.setContextClassLoader(hostClassLoader);<a name="line.416"></a> +<span class="sourceLineNo">417</span> }<a name="line.417"></a> +<span class="sourceLineNo">418</span> } else {<a name="line.418"></a> +<span class="sourceLineNo">419</span> LOG.warn("Not starting coprocessor "+impl.getClass().getName()+<a name="line.419"></a> +<span class="sourceLineNo">420</span> " because not inactive (state="+state.toString()+")");<a name="line.420"></a> +<span class="sourceLineNo">421</span> }<a name="line.421"></a> +<span class="sourceLineNo">422</span> }<a 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class="sourceLineNo">433</span> state = Coprocessor.State.STOPPED;<a name="line.433"></a> +<span class="sourceLineNo">434</span> } catch (IOException ioe) {<a name="line.434"></a> +<span class="sourceLineNo">435</span> LOG.error("Error stopping coprocessor "+impl.getClass().getName(), ioe);<a name="line.435"></a> +<span class="sourceLineNo">436</span> } finally {<a name="line.436"></a> +<span class="sourceLineNo">437</span> currentThread.setContextClassLoader(hostClassLoader);<a name="line.437"></a> +<span class="sourceLineNo">438</span> }<a name="line.438"></a> +<span class="sourceLineNo">439</span> } else {<a name="line.439"></a> +<span class="sourceLineNo">440</span> LOG.warn("Not stopping coprocessor "+impl.getClass().getName()+<a name="line.440"></a> +<span class="sourceLineNo">441</span> " because not active (state="+state.toString()+")");<a name="line.441"></a> +<span class="sourceLineNo">442</span> }<a name="line.442"></a> +<span class="sourceLineNo">443</span> synchronized (openTables) {<a name="line.443"></a> +<span class="sourceLineNo">444</span> // clean up any table references<a name="line.444"></a> +<span class="sourceLineNo">445</span> for (Table table: openTables) {<a name="line.445"></a> +<span class="sourceLineNo">446</span> try {<a name="line.446"></a> +<span class="sourceLineNo">447</span> ((HTableWrapper)table).internalClose();<a name="line.447"></a> +<span class="sourceLineNo">448</span> } catch (IOException e) {<a name="line.448"></a> +<span class="sourceLineNo">449</span> // nothing can be done here<a name="line.449"></a> +<span class="sourceLineNo">450</span> LOG.warn("Failed to close " +<a name="line.450"></a> +<span class="sourceLineNo">451</span> table.getName(), e);<a name="line.451"></a> +<span class="sourceLineNo">452</span> }<a name="line.452"></a> +<span class="sourceLineNo">453</span> }<a name="line.453"></a> +<span class="sourceLineNo">454</span> }<a name="line.454"></a> +<span class="sourceLineNo">455</span> }<a 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<TRUNCATED>
