http://git-wip-us.apache.org/repos/asf/hbase-site/blob/bb398572/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterCoprocessorHost.MasterEnvironment.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterCoprocessorHost.MasterEnvironment.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterCoprocessorHost.MasterEnvironment.html index 1318b95..841130a 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterCoprocessorHost.MasterEnvironment.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterCoprocessorHost.MasterEnvironment.html @@ -55,1647 +55,1615 @@ <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;<a name="line.47"></a> <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.coprocessor.MasterObserver;<a name="line.48"></a> <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.coprocessor.MetricsCoprocessor;<a name="line.49"></a> -<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.50"></a> -<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.master.locking.LockProcedure;<a name="line.51"></a> -<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.52"></a> -<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.metrics.MetricRegistry;<a name="line.53"></a> -<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.net.Address;<a name="line.54"></a> -<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.procedure2.LockType;<a name="line.55"></a> -<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.procedure2.LockedResource;<a name="line.56"></a> -<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.57"></a> -<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.58"></a> -<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.quotas.GlobalQuotaSettings;<a name="line.59"></a> -<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.replication.ReplicationPeerConfig;<a name="line.60"></a> -<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.security.User;<a name="line.61"></a> -<span class="sourceLineNo">062</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.62"></a> -<span class="sourceLineNo">063</span>import org.slf4j.Logger;<a name="line.63"></a> -<span class="sourceLineNo">064</span>import org.slf4j.LoggerFactory;<a name="line.64"></a> -<span class="sourceLineNo">065</span><a name="line.65"></a> -<span class="sourceLineNo">066</span>/**<a name="line.66"></a> -<span class="sourceLineNo">067</span> * Provides the coprocessor framework and environment for master oriented<a name="line.67"></a> -<span class="sourceLineNo">068</span> * operations. {@link HMaster} interacts with the loaded coprocessors<a name="line.68"></a> -<span class="sourceLineNo">069</span> * through this class.<a name="line.69"></a> -<span class="sourceLineNo">070</span> */<a name="line.70"></a> -<span class="sourceLineNo">071</span>@InterfaceAudience.Private<a name="line.71"></a> -<span class="sourceLineNo">072</span>public class MasterCoprocessorHost<a name="line.72"></a> -<span class="sourceLineNo">073</span> extends CoprocessorHost<MasterCoprocessor, MasterCoprocessorEnvironment> {<a name="line.73"></a> -<span class="sourceLineNo">074</span><a name="line.74"></a> -<span class="sourceLineNo">075</span> private static final Logger LOG = LoggerFactory.getLogger(MasterCoprocessorHost.class);<a name="line.75"></a> -<span class="sourceLineNo">076</span><a name="line.76"></a> -<span class="sourceLineNo">077</span> /**<a name="line.77"></a> -<span class="sourceLineNo">078</span> * Coprocessor environment extension providing access to master related<a name="line.78"></a> -<span class="sourceLineNo">079</span> * services.<a name="line.79"></a> -<span class="sourceLineNo">080</span> */<a name="line.80"></a> -<span class="sourceLineNo">081</span> private static class MasterEnvironment extends BaseEnvironment<MasterCoprocessor><a name="line.81"></a> -<span class="sourceLineNo">082</span> implements MasterCoprocessorEnvironment {<a name="line.82"></a> -<span class="sourceLineNo">083</span> private final boolean supportGroupCPs;<a name="line.83"></a> -<span class="sourceLineNo">084</span> private final MetricRegistry metricRegistry;<a name="line.84"></a> -<span class="sourceLineNo">085</span> private final MasterServices services;<a name="line.85"></a> -<span class="sourceLineNo">086</span><a name="line.86"></a> -<span class="sourceLineNo">087</span> public MasterEnvironment(final MasterCoprocessor impl, final int priority, final int seq,<a name="line.87"></a> -<span class="sourceLineNo">088</span> final Configuration conf, final MasterServices services) {<a name="line.88"></a> -<span class="sourceLineNo">089</span> super(impl, priority, seq, conf);<a name="line.89"></a> -<span class="sourceLineNo">090</span> this.services = services;<a name="line.90"></a> -<span class="sourceLineNo">091</span> supportGroupCPs = !useLegacyMethod(impl.getClass(),<a name="line.91"></a> -<span class="sourceLineNo">092</span> "preBalanceRSGroup", ObserverContext.class, String.class);<a name="line.92"></a> -<span class="sourceLineNo">093</span> this.metricRegistry =<a name="line.93"></a> -<span class="sourceLineNo">094</span> MetricsCoprocessor.createRegistryForMasterCoprocessor(impl.getClass().getName());<a name="line.94"></a> -<span class="sourceLineNo">095</span> }<a name="line.95"></a> -<span class="sourceLineNo">096</span><a name="line.96"></a> -<span class="sourceLineNo">097</span> @Override<a name="line.97"></a> -<span class="sourceLineNo">098</span> public ServerName getServerName() {<a name="line.98"></a> -<span class="sourceLineNo">099</span> return this.services.getServerName();<a name="line.99"></a> -<span class="sourceLineNo">100</span> }<a name="line.100"></a> -<span class="sourceLineNo">101</span><a name="line.101"></a> -<span class="sourceLineNo">102</span> @Override<a name="line.102"></a> -<span class="sourceLineNo">103</span> public Connection getConnection() {<a name="line.103"></a> -<span class="sourceLineNo">104</span> return new SharedConnection(this.services.getConnection());<a name="line.104"></a> -<span class="sourceLineNo">105</span> }<a name="line.105"></a> -<span class="sourceLineNo">106</span><a name="line.106"></a> -<span class="sourceLineNo">107</span> @Override<a name="line.107"></a> -<span class="sourceLineNo">108</span> public Connection createConnection(Configuration conf) throws IOException {<a name="line.108"></a> -<span class="sourceLineNo">109</span> return this.services.createConnection(conf);<a name="line.109"></a> -<span class="sourceLineNo">110</span> }<a name="line.110"></a> -<span class="sourceLineNo">111</span><a name="line.111"></a> -<span class="sourceLineNo">112</span> @Override<a name="line.112"></a> -<span class="sourceLineNo">113</span> public MetricRegistry getMetricRegistryForMaster() {<a name="line.113"></a> -<span class="sourceLineNo">114</span> return metricRegistry;<a name="line.114"></a> -<span class="sourceLineNo">115</span> }<a name="line.115"></a> -<span class="sourceLineNo">116</span><a name="line.116"></a> -<span class="sourceLineNo">117</span> @Override<a name="line.117"></a> -<span class="sourceLineNo">118</span> public void shutdown() {<a name="line.118"></a> -<span class="sourceLineNo">119</span> super.shutdown();<a name="line.119"></a> -<span class="sourceLineNo">120</span> MetricsCoprocessor.removeRegistry(this.metricRegistry);<a name="line.120"></a> -<span class="sourceLineNo">121</span> }<a name="line.121"></a> -<span class="sourceLineNo">122</span> }<a name="line.122"></a> -<span class="sourceLineNo">123</span><a name="line.123"></a> -<span class="sourceLineNo">124</span> /**<a name="line.124"></a> -<span class="sourceLineNo">125</span> * Special version of MasterEnvironment that exposes MasterServices for Core Coprocessors only.<a name="line.125"></a> -<span class="sourceLineNo">126</span> * Temporary hack until Core Coprocessors are integrated into Core.<a name="line.126"></a> -<span class="sourceLineNo">127</span> */<a name="line.127"></a> -<span class="sourceLineNo">128</span> private static class MasterEnvironmentForCoreCoprocessors extends MasterEnvironment<a name="line.128"></a> -<span class="sourceLineNo">129</span> implements HasMasterServices {<a name="line.129"></a> -<span class="sourceLineNo">130</span> private final MasterServices masterServices;<a name="line.130"></a> -<span class="sourceLineNo">131</span><a name="line.131"></a> -<span class="sourceLineNo">132</span> public MasterEnvironmentForCoreCoprocessors(final MasterCoprocessor impl, final int priority,<a name="line.132"></a> -<span class="sourceLineNo">133</span> final int seq, final Configuration conf, final MasterServices services) {<a name="line.133"></a> -<span class="sourceLineNo">134</span> super(impl, priority, seq, conf, services);<a name="line.134"></a> -<span class="sourceLineNo">135</span> this.masterServices = services;<a name="line.135"></a> -<span class="sourceLineNo">136</span> }<a name="line.136"></a> -<span class="sourceLineNo">137</span><a name="line.137"></a> -<span class="sourceLineNo">138</span> /**<a name="line.138"></a> -<span class="sourceLineNo">139</span> * @return An instance of MasterServices, an object NOT for general user-space Coprocessor<a name="line.139"></a> -<span class="sourceLineNo">140</span> * consumption.<a name="line.140"></a> -<span class="sourceLineNo">141</span> */<a name="line.141"></a> -<span class="sourceLineNo">142</span> public MasterServices getMasterServices() {<a name="line.142"></a> -<span class="sourceLineNo">143</span> return this.masterServices;<a name="line.143"></a> -<span class="sourceLineNo">144</span> }<a name="line.144"></a> -<span class="sourceLineNo">145</span> }<a name="line.145"></a> -<span class="sourceLineNo">146</span><a name="line.146"></a> -<span class="sourceLineNo">147</span> private MasterServices masterServices;<a name="line.147"></a> -<span class="sourceLineNo">148</span><a name="line.148"></a> -<span class="sourceLineNo">149</span> public MasterCoprocessorHost(final MasterServices services, final Configuration conf) {<a name="line.149"></a> -<span class="sourceLineNo">150</span> super(services);<a name="line.150"></a> -<span class="sourceLineNo">151</span> this.conf = conf;<a name="line.151"></a> -<span class="sourceLineNo">152</span> this.masterServices = services;<a name="line.152"></a> -<span class="sourceLineNo">153</span> // Log the state of coprocessor loading here; should appear only once or<a name="line.153"></a> -<span class="sourceLineNo">154</span> // twice in the daemon log, depending on HBase version, because there is<a name="line.154"></a> -<span class="sourceLineNo">155</span> // only one MasterCoprocessorHost instance in the master process<a name="line.155"></a> -<span class="sourceLineNo">156</span> boolean coprocessorsEnabled = conf.getBoolean(COPROCESSORS_ENABLED_CONF_KEY,<a name="line.156"></a> -<span class="sourceLineNo">157</span> DEFAULT_COPROCESSORS_ENABLED);<a name="line.157"></a> -<span class="sourceLineNo">158</span> LOG.info("System coprocessor loading is " + (coprocessorsEnabled ? "enabled" : "disabled"));<a name="line.158"></a> -<span class="sourceLineNo">159</span> loadSystemCoprocessors(conf, MASTER_COPROCESSOR_CONF_KEY);<a name="line.159"></a> -<span class="sourceLineNo">160</span> }<a name="line.160"></a> -<span class="sourceLineNo">161</span><a name="line.161"></a> -<span class="sourceLineNo">162</span> @Override<a name="line.162"></a> -<span class="sourceLineNo">163</span> public MasterEnvironment createEnvironment(final MasterCoprocessor instance, final int priority,<a name="line.163"></a> -<span class="sourceLineNo">164</span> final int seq, final Configuration conf) {<a name="line.164"></a> -<span class="sourceLineNo">165</span> // If coprocessor exposes any services, register them.<a name="line.165"></a> -<span class="sourceLineNo">166</span> for (Service service : instance.getServices()) {<a name="line.166"></a> -<span class="sourceLineNo">167</span> masterServices.registerService(service);<a name="line.167"></a> -<span class="sourceLineNo">168</span> }<a name="line.168"></a> -<span class="sourceLineNo">169</span> // If a CoreCoprocessor, return a 'richer' environment, one laden with MasterServices.<a name="line.169"></a> -<span class="sourceLineNo">170</span> return instance.getClass().isAnnotationPresent(CoreCoprocessor.class)?<a name="line.170"></a> -<span class="sourceLineNo">171</span> new MasterEnvironmentForCoreCoprocessors(instance, priority, seq, conf, masterServices):<a name="line.171"></a> -<span class="sourceLineNo">172</span> new MasterEnvironment(instance, priority, seq, conf, masterServices);<a name="line.172"></a> -<span class="sourceLineNo">173</span> }<a name="line.173"></a> -<span class="sourceLineNo">174</span><a name="line.174"></a> -<span class="sourceLineNo">175</span> @Override<a name="line.175"></a> -<span class="sourceLineNo">176</span> public MasterCoprocessor checkAndGetInstance(Class<?> implClass)<a name="line.176"></a> -<span class="sourceLineNo">177</span> throws InstantiationException, IllegalAccessException {<a name="line.177"></a> -<span class="sourceLineNo">178</span> if (MasterCoprocessor.class.isAssignableFrom(implClass)) {<a name="line.178"></a> -<span class="sourceLineNo">179</span> return (MasterCoprocessor)implClass.newInstance();<a name="line.179"></a> -<span class="sourceLineNo">180</span> } else if (CoprocessorService.class.isAssignableFrom(implClass)) {<a name="line.180"></a> -<span class="sourceLineNo">181</span> // For backward compatibility with old CoprocessorService impl which don't extend<a name="line.181"></a> -<span class="sourceLineNo">182</span> // MasterCoprocessor.<a name="line.182"></a> -<span class="sourceLineNo">183</span> return new CoprocessorServiceBackwardCompatiblity.MasterCoprocessorService(<a name="line.183"></a> -<span class="sourceLineNo">184</span> (CoprocessorService)implClass.newInstance());<a name="line.184"></a> -<span class="sourceLineNo">185</span> } else {<a name="line.185"></a> -<span class="sourceLineNo">186</span> LOG.error(implClass.getName() + " is not of type MasterCoprocessor. Check the "<a name="line.186"></a> -<span class="sourceLineNo">187</span> + "configuration " + CoprocessorHost.MASTER_COPROCESSOR_CONF_KEY);<a name="line.187"></a> -<span class="sourceLineNo">188</span> return null;<a name="line.188"></a> -<span class="sourceLineNo">189</span> }<a name="line.189"></a> -<span class="sourceLineNo">190</span> }<a name="line.190"></a> -<span class="sourceLineNo">191</span><a name="line.191"></a> -<span class="sourceLineNo">192</span> private ObserverGetter<MasterCoprocessor, MasterObserver> masterObserverGetter =<a name="line.192"></a> -<span class="sourceLineNo">193</span> MasterCoprocessor::getMasterObserver;<a name="line.193"></a> -<span class="sourceLineNo">194</span><a name="line.194"></a> -<span class="sourceLineNo">195</span> abstract class MasterObserverOperation extends<a name="line.195"></a> -<span class="sourceLineNo">196</span> ObserverOperationWithoutResult<MasterObserver> {<a name="line.196"></a> -<span class="sourceLineNo">197</span> public MasterObserverOperation(){<a name="line.197"></a> -<span class="sourceLineNo">198</span> super(masterObserverGetter);<a name="line.198"></a> +<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.master.locking.LockProcedure;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.metrics.MetricRegistry;<a name="line.52"></a> +<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.net.Address;<a name="line.53"></a> +<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.procedure2.LockType;<a name="line.54"></a> +<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.procedure2.LockedResource;<a name="line.55"></a> +<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.56"></a> +<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.57"></a> +<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.quotas.GlobalQuotaSettings;<a name="line.58"></a> +<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.replication.ReplicationPeerConfig;<a name="line.59"></a> +<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.security.User;<a name="line.60"></a> +<span class="sourceLineNo">061</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.61"></a> +<span class="sourceLineNo">062</span>import org.slf4j.Logger;<a name="line.62"></a> +<span class="sourceLineNo">063</span>import org.slf4j.LoggerFactory;<a name="line.63"></a> +<span class="sourceLineNo">064</span><a name="line.64"></a> +<span class="sourceLineNo">065</span>/**<a name="line.65"></a> +<span class="sourceLineNo">066</span> * Provides the coprocessor framework and environment for master oriented<a name="line.66"></a> +<span class="sourceLineNo">067</span> * operations. {@link HMaster} interacts with the loaded coprocessors<a name="line.67"></a> +<span class="sourceLineNo">068</span> * through this class.<a name="line.68"></a> +<span class="sourceLineNo">069</span> */<a name="line.69"></a> +<span class="sourceLineNo">070</span>@InterfaceAudience.Private<a name="line.70"></a> +<span class="sourceLineNo">071</span>public class MasterCoprocessorHost<a name="line.71"></a> +<span class="sourceLineNo">072</span> extends CoprocessorHost<MasterCoprocessor, MasterCoprocessorEnvironment> {<a name="line.72"></a> +<span class="sourceLineNo">073</span><a name="line.73"></a> +<span class="sourceLineNo">074</span> private static final Logger LOG = LoggerFactory.getLogger(MasterCoprocessorHost.class);<a name="line.74"></a> +<span class="sourceLineNo">075</span><a name="line.75"></a> +<span class="sourceLineNo">076</span> /**<a name="line.76"></a> +<span class="sourceLineNo">077</span> * Coprocessor environment extension providing access to master related<a name="line.77"></a> +<span class="sourceLineNo">078</span> * services.<a name="line.78"></a> +<span class="sourceLineNo">079</span> */<a name="line.79"></a> +<span class="sourceLineNo">080</span> private static class MasterEnvironment extends BaseEnvironment<MasterCoprocessor><a name="line.80"></a> +<span class="sourceLineNo">081</span> implements MasterCoprocessorEnvironment {<a name="line.81"></a> +<span class="sourceLineNo">082</span> private final MetricRegistry metricRegistry;<a name="line.82"></a> +<span class="sourceLineNo">083</span> private final MasterServices services;<a name="line.83"></a> +<span class="sourceLineNo">084</span><a name="line.84"></a> +<span class="sourceLineNo">085</span> public MasterEnvironment(final MasterCoprocessor impl, final int priority, final int seq,<a name="line.85"></a> +<span class="sourceLineNo">086</span> final Configuration conf, final MasterServices services) {<a name="line.86"></a> +<span class="sourceLineNo">087</span> super(impl, priority, seq, conf);<a name="line.87"></a> +<span class="sourceLineNo">088</span> this.services = services;<a name="line.88"></a> +<span class="sourceLineNo">089</span> this.metricRegistry =<a name="line.89"></a> +<span class="sourceLineNo">090</span> MetricsCoprocessor.createRegistryForMasterCoprocessor(impl.getClass().getName());<a name="line.90"></a> +<span class="sourceLineNo">091</span> }<a name="line.91"></a> +<span class="sourceLineNo">092</span><a name="line.92"></a> +<span class="sourceLineNo">093</span> @Override<a name="line.93"></a> +<span class="sourceLineNo">094</span> public ServerName getServerName() {<a name="line.94"></a> +<span class="sourceLineNo">095</span> return this.services.getServerName();<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> @Override<a name="line.98"></a> +<span class="sourceLineNo">099</span> public Connection getConnection() {<a name="line.99"></a> +<span class="sourceLineNo">100</span> return new SharedConnection(this.services.getConnection());<a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span><a name="line.102"></a> +<span class="sourceLineNo">103</span> @Override<a name="line.103"></a> +<span class="sourceLineNo">104</span> public Connection createConnection(Configuration conf) throws IOException {<a name="line.104"></a> +<span class="sourceLineNo">105</span> return this.services.createConnection(conf);<a name="line.105"></a> +<span class="sourceLineNo">106</span> }<a name="line.106"></a> +<span class="sourceLineNo">107</span><a name="line.107"></a> +<span class="sourceLineNo">108</span> @Override<a name="line.108"></a> +<span class="sourceLineNo">109</span> public MetricRegistry getMetricRegistryForMaster() {<a name="line.109"></a> +<span class="sourceLineNo">110</span> return metricRegistry;<a name="line.110"></a> +<span class="sourceLineNo">111</span> }<a name="line.111"></a> +<span class="sourceLineNo">112</span><a name="line.112"></a> +<span class="sourceLineNo">113</span> @Override<a name="line.113"></a> +<span class="sourceLineNo">114</span> public void shutdown() {<a name="line.114"></a> +<span class="sourceLineNo">115</span> super.shutdown();<a name="line.115"></a> +<span class="sourceLineNo">116</span> MetricsCoprocessor.removeRegistry(this.metricRegistry);<a name="line.116"></a> +<span class="sourceLineNo">117</span> }<a name="line.117"></a> +<span class="sourceLineNo">118</span> }<a name="line.118"></a> +<span class="sourceLineNo">119</span><a name="line.119"></a> +<span class="sourceLineNo">120</span> /**<a name="line.120"></a> +<span class="sourceLineNo">121</span> * Special version of MasterEnvironment that exposes MasterServices for Core Coprocessors only.<a name="line.121"></a> +<span class="sourceLineNo">122</span> * Temporary hack until Core Coprocessors are integrated into Core.<a name="line.122"></a> +<span class="sourceLineNo">123</span> */<a name="line.123"></a> +<span class="sourceLineNo">124</span> private static class MasterEnvironmentForCoreCoprocessors extends MasterEnvironment<a name="line.124"></a> +<span class="sourceLineNo">125</span> implements HasMasterServices {<a name="line.125"></a> +<span class="sourceLineNo">126</span> private final MasterServices masterServices;<a name="line.126"></a> +<span class="sourceLineNo">127</span><a name="line.127"></a> +<span class="sourceLineNo">128</span> public MasterEnvironmentForCoreCoprocessors(final MasterCoprocessor impl, final int priority,<a name="line.128"></a> +<span class="sourceLineNo">129</span> final int seq, final Configuration conf, final MasterServices services) {<a name="line.129"></a> +<span class="sourceLineNo">130</span> super(impl, priority, seq, conf, services);<a name="line.130"></a> +<span class="sourceLineNo">131</span> this.masterServices = services;<a name="line.131"></a> +<span class="sourceLineNo">132</span> }<a name="line.132"></a> +<span class="sourceLineNo">133</span><a name="line.133"></a> +<span class="sourceLineNo">134</span> /**<a name="line.134"></a> +<span class="sourceLineNo">135</span> * @return An instance of MasterServices, an object NOT for general user-space Coprocessor<a name="line.135"></a> +<span class="sourceLineNo">136</span> * consumption.<a name="line.136"></a> +<span class="sourceLineNo">137</span> */<a name="line.137"></a> +<span class="sourceLineNo">138</span> public MasterServices getMasterServices() {<a name="line.138"></a> +<span class="sourceLineNo">139</span> return this.masterServices;<a name="line.139"></a> +<span class="sourceLineNo">140</span> }<a name="line.140"></a> +<span class="sourceLineNo">141</span> }<a name="line.141"></a> +<span class="sourceLineNo">142</span><a name="line.142"></a> +<span class="sourceLineNo">143</span> private MasterServices masterServices;<a name="line.143"></a> +<span class="sourceLineNo">144</span><a name="line.144"></a> +<span class="sourceLineNo">145</span> public MasterCoprocessorHost(final MasterServices services, final Configuration conf) {<a name="line.145"></a> +<span class="sourceLineNo">146</span> super(services);<a name="line.146"></a> +<span class="sourceLineNo">147</span> this.conf = conf;<a name="line.147"></a> +<span class="sourceLineNo">148</span> this.masterServices = services;<a name="line.148"></a> +<span class="sourceLineNo">149</span> // Log the state of coprocessor loading here; should appear only once or<a name="line.149"></a> +<span class="sourceLineNo">150</span> // twice in the daemon log, depending on HBase version, because there is<a name="line.150"></a> +<span class="sourceLineNo">151</span> // only one MasterCoprocessorHost instance in the master process<a name="line.151"></a> +<span class="sourceLineNo">152</span> boolean coprocessorsEnabled = conf.getBoolean(COPROCESSORS_ENABLED_CONF_KEY,<a name="line.152"></a> +<span class="sourceLineNo">153</span> DEFAULT_COPROCESSORS_ENABLED);<a name="line.153"></a> +<span class="sourceLineNo">154</span> LOG.info("System coprocessor loading is " + (coprocessorsEnabled ? "enabled" : "disabled"));<a name="line.154"></a> +<span class="sourceLineNo">155</span> loadSystemCoprocessors(conf, MASTER_COPROCESSOR_CONF_KEY);<a name="line.155"></a> +<span class="sourceLineNo">156</span> }<a name="line.156"></a> +<span class="sourceLineNo">157</span><a name="line.157"></a> +<span class="sourceLineNo">158</span> @Override<a name="line.158"></a> +<span class="sourceLineNo">159</span> public MasterEnvironment createEnvironment(final MasterCoprocessor instance, final int priority,<a name="line.159"></a> +<span class="sourceLineNo">160</span> final int seq, final Configuration conf) {<a name="line.160"></a> +<span class="sourceLineNo">161</span> // If coprocessor exposes any services, register them.<a name="line.161"></a> +<span class="sourceLineNo">162</span> for (Service service : instance.getServices()) {<a name="line.162"></a> +<span class="sourceLineNo">163</span> masterServices.registerService(service);<a name="line.163"></a> +<span class="sourceLineNo">164</span> }<a name="line.164"></a> +<span class="sourceLineNo">165</span> // If a CoreCoprocessor, return a 'richer' environment, one laden with MasterServices.<a name="line.165"></a> +<span class="sourceLineNo">166</span> return instance.getClass().isAnnotationPresent(CoreCoprocessor.class)?<a name="line.166"></a> +<span class="sourceLineNo">167</span> new MasterEnvironmentForCoreCoprocessors(instance, priority, seq, conf, masterServices):<a name="line.167"></a> +<span class="sourceLineNo">168</span> new MasterEnvironment(instance, priority, seq, conf, masterServices);<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> @Override<a name="line.171"></a> +<span class="sourceLineNo">172</span> public MasterCoprocessor checkAndGetInstance(Class<?> implClass)<a name="line.172"></a> +<span class="sourceLineNo">173</span> throws InstantiationException, IllegalAccessException {<a name="line.173"></a> +<span class="sourceLineNo">174</span> if (MasterCoprocessor.class.isAssignableFrom(implClass)) {<a name="line.174"></a> +<span class="sourceLineNo">175</span> return (MasterCoprocessor)implClass.newInstance();<a name="line.175"></a> +<span class="sourceLineNo">176</span> } else if (CoprocessorService.class.isAssignableFrom(implClass)) {<a name="line.176"></a> +<span class="sourceLineNo">177</span> // For backward compatibility with old CoprocessorService impl which don't extend<a name="line.177"></a> +<span class="sourceLineNo">178</span> // MasterCoprocessor.<a name="line.178"></a> +<span class="sourceLineNo">179</span> return new CoprocessorServiceBackwardCompatiblity.MasterCoprocessorService(<a name="line.179"></a> +<span class="sourceLineNo">180</span> (CoprocessorService)implClass.newInstance());<a name="line.180"></a> +<span class="sourceLineNo">181</span> } else {<a name="line.181"></a> +<span class="sourceLineNo">182</span> LOG.error(implClass.getName() + " is not of type MasterCoprocessor. Check the "<a name="line.182"></a> +<span class="sourceLineNo">183</span> + "configuration " + CoprocessorHost.MASTER_COPROCESSOR_CONF_KEY);<a name="line.183"></a> +<span class="sourceLineNo">184</span> return null;<a name="line.184"></a> +<span class="sourceLineNo">185</span> }<a name="line.185"></a> +<span class="sourceLineNo">186</span> }<a name="line.186"></a> +<span class="sourceLineNo">187</span><a name="line.187"></a> +<span class="sourceLineNo">188</span> private ObserverGetter<MasterCoprocessor, MasterObserver> masterObserverGetter =<a name="line.188"></a> +<span class="sourceLineNo">189</span> MasterCoprocessor::getMasterObserver;<a name="line.189"></a> +<span class="sourceLineNo">190</span><a name="line.190"></a> +<span class="sourceLineNo">191</span> abstract class MasterObserverOperation extends<a name="line.191"></a> +<span class="sourceLineNo">192</span> ObserverOperationWithoutResult<MasterObserver> {<a name="line.192"></a> +<span class="sourceLineNo">193</span> public MasterObserverOperation(){<a name="line.193"></a> +<span class="sourceLineNo">194</span> super(masterObserverGetter);<a name="line.194"></a> +<span class="sourceLineNo">195</span> }<a name="line.195"></a> +<span class="sourceLineNo">196</span><a name="line.196"></a> +<span class="sourceLineNo">197</span> public MasterObserverOperation(boolean bypassable) {<a name="line.197"></a> +<span class="sourceLineNo">198</span> this(null, bypassable);<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> public MasterObserverOperation(boolean bypassable) {<a name="line.201"></a> -<span class="sourceLineNo">202</span> this(null, bypassable);<a name="line.202"></a> +<span class="sourceLineNo">201</span> public MasterObserverOperation(User user) {<a name="line.201"></a> +<span class="sourceLineNo">202</span> super(masterObserverGetter, user);<a name="line.202"></a> <span class="sourceLineNo">203</span> }<a name="line.203"></a> <span class="sourceLineNo">204</span><a name="line.204"></a> -<span class="sourceLineNo">205</span> public MasterObserverOperation(User user) {<a name="line.205"></a> -<span class="sourceLineNo">206</span> super(masterObserverGetter, user);<a name="line.206"></a> +<span class="sourceLineNo">205</span> public MasterObserverOperation(User user, boolean bypassable) {<a name="line.205"></a> +<span class="sourceLineNo">206</span> super(masterObserverGetter, user, bypassable);<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> public MasterObserverOperation(User user, boolean bypassable) {<a name="line.209"></a> -<span class="sourceLineNo">210</span> super(masterObserverGetter, user, bypassable);<a name="line.210"></a> -<span class="sourceLineNo">211</span> }<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">208</span> }<a name="line.208"></a> +<span class="sourceLineNo">209</span><a name="line.209"></a> +<span class="sourceLineNo">210</span><a name="line.210"></a> +<span class="sourceLineNo">211</span> //////////////////////////////////////////////////////////////////////////////////////////////////<a name="line.211"></a> +<span class="sourceLineNo">212</span> // MasterObserver operations<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> // MasterObserver operations<a name="line.216"></a> -<span class="sourceLineNo">217</span> //////////////////////////////////////////////////////////////////////////////////////////////////<a name="line.217"></a> -<span class="sourceLineNo">218</span><a name="line.218"></a> -<span class="sourceLineNo">219</span><a name="line.219"></a> -<span class="sourceLineNo">220</span> public void preCreateNamespace(final NamespaceDescriptor ns) throws IOException {<a name="line.220"></a> -<span class="sourceLineNo">221</span> execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {<a name="line.221"></a> -<span class="sourceLineNo">222</span> @Override<a name="line.222"></a> -<span class="sourceLineNo">223</span> public void call(MasterObserver observer) throws IOException {<a name="line.223"></a> -<span class="sourceLineNo">224</span> observer.preCreateNamespace(this, ns);<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><a name="line.228"></a> -<span class="sourceLineNo">229</span> public void postCreateNamespace(final NamespaceDescriptor ns) throws IOException {<a name="line.229"></a> -<span class="sourceLineNo">230</span> execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {<a name="line.230"></a> -<span class="sourceLineNo">231</span> @Override<a name="line.231"></a> -<span class="sourceLineNo">232</span> public void call(MasterObserver observer) throws IOException {<a name="line.232"></a> -<span class="sourceLineNo">233</span> observer.postCreateNamespace(this, ns);<a name="line.233"></a> -<span class="sourceLineNo">234</span> }<a name="line.234"></a> -<span class="sourceLineNo">235</span> });<a name="line.235"></a> -<span class="sourceLineNo">236</span> }<a name="line.236"></a> -<span class="sourceLineNo">237</span><a name="line.237"></a> -<span class="sourceLineNo">238</span> public void preDeleteNamespace(final String namespaceName) throws IOException {<a name="line.238"></a> -<span class="sourceLineNo">239</span> execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {<a name="line.239"></a> -<span class="sourceLineNo">240</span> @Override<a name="line.240"></a> -<span class="sourceLineNo">241</span> public void call(MasterObserver observer) throws IOException {<a name="line.241"></a> -<span class="sourceLineNo">242</span> observer.preDeleteNamespace(this, namespaceName);<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> }<a name="line.245"></a> -<span class="sourceLineNo">246</span><a name="line.246"></a> -<span class="sourceLineNo">247</span> public void postDeleteNamespace(final String namespaceName) throws IOException {<a name="line.247"></a> -<span class="sourceLineNo">248</span> execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {<a name="line.248"></a> -<span class="sourceLineNo">249</span> @Override<a name="line.249"></a> -<span class="sourceLineNo">250</span> public void call(MasterObserver observer) throws IOException {<a name="line.250"></a> -<span class="sourceLineNo">251</span> observer.postDeleteNamespace(this, namespaceName);<a name="line.251"></a> -<span class="sourceLineNo">252</span> }<a name="line.252"></a> -<span class="sourceLineNo">253</span> });<a name="line.253"></a> -<span class="sourceLineNo">254</span> }<a name="line.254"></a> -<span class="sourceLineNo">255</span><a name="line.255"></a> -<span class="sourceLineNo">256</span> public void preModifyNamespace(final NamespaceDescriptor ns) throws IOException {<a name="line.256"></a> -<span class="sourceLineNo">257</span> execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {<a name="line.257"></a> -<span class="sourceLineNo">258</span> @Override<a name="line.258"></a> -<span class="sourceLineNo">259</span> public void call(MasterObserver observer) throws IOException {<a name="line.259"></a> -<span class="sourceLineNo">260</span> observer.preModifyNamespace(this, ns);<a name="line.260"></a> -<span class="sourceLineNo">261</span> }<a name="line.261"></a> -<span class="sourceLineNo">262</span> });<a name="line.262"></a> -<span class="sourceLineNo">263</span> }<a name="line.263"></a> -<span class="sourceLineNo">264</span><a name="line.264"></a> -<span class="sourceLineNo">265</span> public void postModifyNamespace(final NamespaceDescriptor ns) throws IOException {<a name="line.265"></a> -<span class="sourceLineNo">266</span> execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {<a name="line.266"></a> -<span class="sourceLineNo">267</span> @Override<a name="line.267"></a> -<span class="sourceLineNo">268</span> public void call(MasterObserver observer) throws IOException {<a name="line.268"></a> -<span class="sourceLineNo">269</span> observer.postModifyNamespace(this, ns);<a name="line.269"></a> -<span class="sourceLineNo">270</span> }<a name="line.270"></a> -<span class="sourceLineNo">271</span> });<a name="line.271"></a> -<span class="sourceLineNo">272</span> }<a name="line.272"></a> -<span class="sourceLineNo">273</span><a name="line.273"></a> -<span class="sourceLineNo">274</span> public void preGetNamespaceDescriptor(final String namespaceName)<a name="line.274"></a> -<span class="sourceLineNo">275</span> throws IOException {<a name="line.275"></a> -<span class="sourceLineNo">276</span> execOperation(coprocEnvironments.isEmpty() ? 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