http://git-wip-us.apache.org/repos/asf/hbase-site/blob/8e4e1542/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.EnvironmentPriorityComparator.html
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diff --git
a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.EnvironmentPriorityComparator.html
b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.EnvironmentPriorityComparator.html
index ec36d2e..1572f5f 100644
---
a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.EnvironmentPriorityComparator.html
+++
b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.EnvironmentPriorityComparator.html
@@ -34,330 +34,328 @@
<span class="sourceLineNo">026</span>import org.apache.commons.logging.Log;<a
name="line.26"></a>
<span class="sourceLineNo">027</span>import
org.apache.commons.logging.LogFactory;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import
org.apache.hadoop.conf.Configuration;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import
org.apache.hadoop.hbase.CellScanner;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import
org.apache.hadoop.hbase.Coprocessor;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import
org.apache.hadoop.hbase.CoprocessorEnvironment;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import
org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import
org.apache.yetus.audience.InterfaceAudience;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import
org.apache.yetus.audience.InterfaceStability;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import
org.apache.hadoop.hbase.coprocessor.CoprocessorHost;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import
org.apache.hadoop.hbase.coprocessor.MetricsCoprocessor;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import
org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import
org.apache.hadoop.hbase.coprocessor.RegionServerCoprocessorEnvironment;<a
name="line.38"></a>
-<span class="sourceLineNo">039</span>import
org.apache.hadoop.hbase.coprocessor.RegionServerObserver;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import
org.apache.hadoop.hbase.coprocessor.SingletonCoprocessorService;<a
name="line.40"></a>
-<span class="sourceLineNo">041</span>import
org.apache.hadoop.hbase.ipc.RpcServer;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import
org.apache.hadoop.hbase.metrics.MetricRegistry;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import
org.apache.hadoop.hbase.replication.ReplicationEndpoint;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import
org.apache.hadoop.hbase.security.User;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import
org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.WALEntry;<a
name="line.45"></a>
-<span class="sourceLineNo">046</span><a name="line.46"></a>
-<span
class="sourceLineNo">047</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)<a
name="line.47"></a>
-<span class="sourceLineNo">048</span>@InterfaceStability.Evolving<a
name="line.48"></a>
-<span class="sourceLineNo">049</span>public class RegionServerCoprocessorHost
extends<a name="line.49"></a>
-<span class="sourceLineNo">050</span>
CoprocessorHost<RegionServerCoprocessorHost.RegionServerEnvironment> {<a
name="line.50"></a>
+<span class="sourceLineNo">029</span>import
org.apache.hadoop.hbase.Coprocessor;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import
org.apache.hadoop.hbase.CoprocessorEnvironment;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import
org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import
org.apache.yetus.audience.InterfaceAudience;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import
org.apache.yetus.audience.InterfaceStability;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import
org.apache.hadoop.hbase.coprocessor.CoprocessorHost;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import
org.apache.hadoop.hbase.coprocessor.MetricsCoprocessor;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import
org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import
org.apache.hadoop.hbase.coprocessor.RegionServerCoprocessorEnvironment;<a
name="line.37"></a>
+<span class="sourceLineNo">038</span>import
org.apache.hadoop.hbase.coprocessor.RegionServerObserver;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import
org.apache.hadoop.hbase.coprocessor.SingletonCoprocessorService;<a
name="line.39"></a>
+<span class="sourceLineNo">040</span>import
org.apache.hadoop.hbase.ipc.RpcServer;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import
org.apache.hadoop.hbase.metrics.MetricRegistry;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import
org.apache.hadoop.hbase.replication.ReplicationEndpoint;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import
org.apache.hadoop.hbase.security.User;<a name="line.43"></a>
+<span class="sourceLineNo">044</span><a name="line.44"></a>
+<span
class="sourceLineNo">045</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)<a
name="line.45"></a>
+<span class="sourceLineNo">046</span>@InterfaceStability.Evolving<a
name="line.46"></a>
+<span class="sourceLineNo">047</span>public class RegionServerCoprocessorHost
extends<a name="line.47"></a>
+<span class="sourceLineNo">048</span>
CoprocessorHost<RegionServerCoprocessorHost.RegionServerEnvironment> {<a
name="line.48"></a>
+<span class="sourceLineNo">049</span><a name="line.49"></a>
+<span class="sourceLineNo">050</span> private static final Log LOG =
LogFactory.getLog(RegionServerCoprocessorHost.class);<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
-<span class="sourceLineNo">052</span> private static final Log LOG =
LogFactory.getLog(RegionServerCoprocessorHost.class);<a name="line.52"></a>
+<span class="sourceLineNo">052</span> private RegionServerServices
rsServices;<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
-<span class="sourceLineNo">054</span> private RegionServerServices
rsServices;<a name="line.54"></a>
-<span class="sourceLineNo">055</span><a name="line.55"></a>
-<span class="sourceLineNo">056</span> public
RegionServerCoprocessorHost(RegionServerServices rsServices,<a
name="line.56"></a>
-<span class="sourceLineNo">057</span> Configuration conf) {<a
name="line.57"></a>
-<span class="sourceLineNo">058</span> super(rsServices);<a
name="line.58"></a>
-<span class="sourceLineNo">059</span> this.rsServices = rsServices;<a
name="line.59"></a>
-<span class="sourceLineNo">060</span> this.conf = conf;<a
name="line.60"></a>
-<span class="sourceLineNo">061</span> // Log the state of coprocessor
loading here; should appear only once or<a name="line.61"></a>
-<span class="sourceLineNo">062</span> // twice in the daemon log, depending
on HBase version, because there is<a name="line.62"></a>
-<span class="sourceLineNo">063</span> // only one
RegionServerCoprocessorHost instance in the RS process<a name="line.63"></a>
-<span class="sourceLineNo">064</span> boolean coprocessorsEnabled =
conf.getBoolean(COPROCESSORS_ENABLED_CONF_KEY,<a name="line.64"></a>
-<span class="sourceLineNo">065</span> DEFAULT_COPROCESSORS_ENABLED);<a
name="line.65"></a>
-<span class="sourceLineNo">066</span> boolean tableCoprocessorsEnabled =
conf.getBoolean(USER_COPROCESSORS_ENABLED_CONF_KEY,<a name="line.66"></a>
-<span class="sourceLineNo">067</span>
DEFAULT_USER_COPROCESSORS_ENABLED);<a name="line.67"></a>
-<span class="sourceLineNo">068</span> LOG.info("System coprocessor loading
is " + (coprocessorsEnabled ? "enabled" : "disabled"));<a name="line.68"></a>
-<span class="sourceLineNo">069</span> LOG.info("Table coprocessor loading
is " +<a name="line.69"></a>
-<span class="sourceLineNo">070</span> ((coprocessorsEnabled &&
tableCoprocessorsEnabled) ? "enabled" : "disabled"));<a name="line.70"></a>
-<span class="sourceLineNo">071</span> loadSystemCoprocessors(conf,
REGIONSERVER_COPROCESSOR_CONF_KEY);<a name="line.71"></a>
-<span class="sourceLineNo">072</span> }<a name="line.72"></a>
-<span class="sourceLineNo">073</span><a name="line.73"></a>
-<span class="sourceLineNo">074</span> @Override<a name="line.74"></a>
-<span class="sourceLineNo">075</span> public RegionServerEnvironment
createEnvironment(Class<?> implClass,<a name="line.75"></a>
-<span class="sourceLineNo">076</span> Coprocessor instance, int priority,
int sequence, Configuration conf) {<a name="line.76"></a>
-<span class="sourceLineNo">077</span> return new
RegionServerEnvironment(implClass, instance, priority,<a name="line.77"></a>
-<span class="sourceLineNo">078</span> sequence, conf, this.rsServices);<a
name="line.78"></a>
-<span class="sourceLineNo">079</span> }<a name="line.79"></a>
-<span class="sourceLineNo">080</span><a name="line.80"></a>
-<span class="sourceLineNo">081</span> public void preStop(String message,
User user) throws IOException {<a name="line.81"></a>
-<span class="sourceLineNo">082</span> // While stopping the region server
all coprocessors method should be executed first then the<a name="line.82"></a>
-<span class="sourceLineNo">083</span> // coprocessor should be cleaned
up.<a name="line.83"></a>
-<span class="sourceLineNo">084</span> execShutdown(coprocessors.isEmpty() ?
null : new CoprocessorOperation(user) {<a name="line.84"></a>
-<span class="sourceLineNo">085</span> @Override<a name="line.85"></a>
-<span class="sourceLineNo">086</span> public void
call(RegionServerObserver oserver,<a name="line.86"></a>
-<span class="sourceLineNo">087</span>
ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.87"></a>
-<span class="sourceLineNo">088</span>
oserver.preStopRegionServer(ctx);<a name="line.88"></a>
-<span class="sourceLineNo">089</span> }<a name="line.89"></a>
-<span class="sourceLineNo">090</span> @Override<a name="line.90"></a>
-<span class="sourceLineNo">091</span> public void
postEnvCall(RegionServerEnvironment env) {<a name="line.91"></a>
-<span class="sourceLineNo">092</span> // invoke coprocessor stop
method<a name="line.92"></a>
-<span class="sourceLineNo">093</span> shutdown(env);<a
name="line.93"></a>
-<span class="sourceLineNo">094</span> }<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><a name="line.97"></a>
-<span class="sourceLineNo">098</span> public void preRollWALWriterRequest()
throws IOException {<a name="line.98"></a>
-<span class="sourceLineNo">099</span> execOperation(coprocessors.isEmpty()
? null : new CoprocessorOperation() {<a name="line.99"></a>
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-<span class="sourceLineNo">101</span> public void
call(RegionServerObserver oserver,<a name="line.101"></a>
-<span class="sourceLineNo">102</span>
ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.102"></a>
-<span class="sourceLineNo">103</span>
oserver.preRollWALWriterRequest(ctx);<a name="line.103"></a>
-<span class="sourceLineNo">104</span> }<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><a name="line.107"></a>
-<span class="sourceLineNo">108</span> public void postRollWALWriterRequest()
throws IOException {<a name="line.108"></a>
-<span class="sourceLineNo">109</span> execOperation(coprocessors.isEmpty()
? null : new CoprocessorOperation() {<a name="line.109"></a>
-<span class="sourceLineNo">110</span> @Override<a name="line.110"></a>
-<span class="sourceLineNo">111</span> public void
call(RegionServerObserver oserver,<a name="line.111"></a>
-<span class="sourceLineNo">112</span>
ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.112"></a>
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oserver.postRollWALWriterRequest(ctx);<a name="line.113"></a>
-<span class="sourceLineNo">114</span> }<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><a name="line.117"></a>
-<span class="sourceLineNo">118</span> public void
preReplicateLogEntries(final List<WALEntry> entries, final CellScanner
cells)<a name="line.118"></a>
-<span class="sourceLineNo">119</span> throws IOException {<a
name="line.119"></a>
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? null : new CoprocessorOperation() {<a name="line.120"></a>
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-<span class="sourceLineNo">122</span> public void
call(RegionServerObserver oserver,<a name="line.122"></a>
-<span class="sourceLineNo">123</span>
ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.123"></a>
-<span class="sourceLineNo">124</span>
oserver.preReplicateLogEntries(ctx, entries, cells);<a name="line.124"></a>
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-<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> public void
postReplicateLogEntries(final List<WALEntry> entries, final CellScanner
cells)<a name="line.129"></a>
-<span class="sourceLineNo">130</span> throws IOException {<a
name="line.130"></a>
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call(RegionServerObserver oserver,<a name="line.133"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.134"></a>
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oserver.postReplicateLogEntries(ctx, entries, cells);<a name="line.135"></a>
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-<span class="sourceLineNo">138</span> }<a name="line.138"></a>
-<span class="sourceLineNo">139</span><a name="line.139"></a>
-<span class="sourceLineNo">140</span> public ReplicationEndpoint
postCreateReplicationEndPoint(final ReplicationEndpoint endpoint)<a
name="line.140"></a>
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name="line.141"></a>
-<span class="sourceLineNo">142</span> return
execOperationWithResult(endpoint, coprocessors.isEmpty() ? null<a
name="line.142"></a>
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CoprocessOperationWithResult<ReplicationEndpoint>() {<a
name="line.143"></a>
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call(RegionServerObserver oserver,<a name="line.145"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.146"></a>
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setResult(oserver.postCreateReplicationEndPoint(ctx, getResult()));<a
name="line.147"></a>
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throws IOException {<a name="line.152"></a>
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? null : new CoprocessorOperation() {<a name="line.153"></a>
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call(RegionServerObserver oserver,<a name="line.155"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.156"></a>
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oserver.preClearCompactionQueues(ctx);<a name="line.157"></a>
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throws IOException {<a name="line.162"></a>
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? null : new CoprocessorOperation() {<a name="line.163"></a>
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call(RegionServerObserver oserver,<a name="line.165"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.166"></a>
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oserver.postClearCompactionQueues(ctx);<a name="line.167"></a>
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execOperationWithResult(final T defaultValue,<a name="line.172"></a>
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CoprocessOperationWithResult<T> ctx) throws IOException {<a
name="line.173"></a>
-<span class="sourceLineNo">174</span> if (ctx == null)<a
name="line.174"></a>
-<span class="sourceLineNo">175</span> return defaultValue;<a
name="line.175"></a>
-<span class="sourceLineNo">176</span> ctx.setResult(defaultValue);<a
name="line.176"></a>
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name="line.177"></a>
-<span class="sourceLineNo">178</span> return ctx.getResult();<a
name="line.178"></a>
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CoprocessorOperation<a name="line.181"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> {<a
name="line.182"></a>
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name="line.183"></a>
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name="line.184"></a>
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user) {<a name="line.187"></a>
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call(RegionServerObserver oserver,<a name="line.191"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException;<a name="line.192"></a>
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postEnvCall(RegionServerEnvironment env) {<a name="line.194"></a>
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CoprocessOperationWithResult<T> extends CoprocessorOperation {<a
name="line.198"></a>
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name="line.199"></a>
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{<a name="line.201"></a>
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name="line.205"></a>
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CoprocessorOperation ctx) throws IOException {<a name="line.210"></a>
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name="line.211"></a>
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name="line.212"></a>
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envs = coprocessors.get();<a name="line.213"></a>
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i++) {<a name="line.214"></a>
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envs.get(i);<a name="line.215"></a>
-<span class="sourceLineNo">216</span> if (env.getInstance() instanceof
RegionServerObserver) {<a name="line.216"></a>
-<span class="sourceLineNo">217</span> ctx.prepare(env);<a
name="line.217"></a>
-<span class="sourceLineNo">218</span> Thread currentThread =
Thread.currentThread();<a name="line.218"></a>
-<span class="sourceLineNo">219</span> ClassLoader cl =
currentThread.getContextClassLoader();<a name="line.219"></a>
-<span class="sourceLineNo">220</span> try {<a name="line.220"></a>
-<span class="sourceLineNo">221</span>
currentThread.setContextClassLoader(env.getClassLoader());<a
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DEFAULT_USER_COPROCESSORS_ENABLED);<a name="line.65"></a>
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User user) throws IOException {<a name="line.79"></a>
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all coprocessors method should be executed first then the<a name="line.80"></a>
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up.<a name="line.81"></a>
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null : new CoprocessorOperation(user) {<a name="line.82"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.85"></a>
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throws IOException {<a name="line.160"></a>
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? null : new CoprocessorOperation() {<a name="line.161"></a>
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call(RegionServerObserver oserver,<a name="line.163"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException {<a name="line.164"></a>
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oserver.postClearCompactionQueues(ctx);<a name="line.165"></a>
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CoprocessOperationWithResult<T> ctx) throws IOException {<a
name="line.171"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> {<a
name="line.180"></a>
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name="line.181"></a>
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ObserverContext<RegionServerCoprocessorEnvironment> ctx) throws
IOException;<a name="line.190"></a>
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postEnvCall(RegionServerEnvironment env) {<a name="line.192"></a>
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CoprocessOperationWithResult<T> extends CoprocessorOperation {<a
name="line.196"></a>
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name="line.197"></a>
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{<a name="line.199"></a>
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name="line.200"></a>
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name="line.203"></a>
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name="line.204"></a>
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envs = coprocessors.get();<a name="line.211"></a>
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i++) {<a name="line.212"></a>
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envs.get(i);<a name="line.213"></a>
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RegionServerObserver) {<a name="line.214"></a>
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name="line.215"></a>
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Thread.currentThread();<a name="line.216"></a>
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currentThread.getContextClassLoader();<a name="line.217"></a>
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currentThread.setContextClassLoader(env.getClassLoader());<a
name="line.219"></a>
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ctx.call((RegionServerObserver)env.getInstance(), ctx);<a name="line.220"></a>
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name="line.221"></a>
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e);<a name="line.222"></a>
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currentThread.setContextClassLoader(cl);<a name="line.224"></a>
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name="line.226"></a>
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name="line.227"></a>
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name="line.231"></a>
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+<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> * RegionServer coprocessor classes can
be configured in any order, based on that priority is set<a name="line.237"></a>
+<span class="sourceLineNo">238</span> * and chained in a sorted order. For
preStop(), coprocessor methods are invoked in call() and<a name="line.238"></a>
+<span class="sourceLineNo">239</span> * environment is shutdown in
postEnvCall(). <br><a name="line.239"></a>
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methods first then postEnvCall(), otherwise some coprocessors<a
name="line.240"></a>
+<span class="sourceLineNo">241</span> * may remain shutdown if any exception
occurs during next coprocessor execution which prevent<a name="line.241"></a>
+<span class="sourceLineNo">242</span> * RegionServer stop. (Refer:<a
name="line.242"></a>
+<span class="sourceLineNo">243</span> * <a
href="https://issues.apache.org/jira/browse/HBASE-16663">HBASE-16663</a><a
name="line.243"></a>
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name="line.244"></a>
+<span class="sourceLineNo">245</span> * @return true if bypaas coprocessor
execution, false if not.<a name="line.245"></a>
+<span class="sourceLineNo">246</span> * @throws IOException<a
name="line.246"></a>
+<span class="sourceLineNo">247</span> */<a name="line.247"></a>
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CoprocessorOperation ctx) throws IOException {<a name="line.248"></a>
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name="line.249"></a>
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name="line.250"></a>
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envs = coprocessors.get();<a name="line.251"></a>
+<span class="sourceLineNo">252</span> int envsSize = envs.size();<a
name="line.252"></a>
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execute CoprocessorOperation's call()<a name="line.253"></a>
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{<a name="line.254"></a>
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envs.get(i);<a name="line.255"></a>
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RegionServerObserver) {<a name="line.256"></a>
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name="line.257"></a>
+<span class="sourceLineNo">258</span> Thread currentThread =
Thread.currentThread();<a name="line.258"></a>
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currentThread.getContextClassLoader();<a name="line.259"></a>
+<span class="sourceLineNo">260</span> try {<a name="line.260"></a>
+<span class="sourceLineNo">261</span>
currentThread.setContextClassLoader(env.getClassLoader());<a
name="line.261"></a>
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env.getInstance(), ctx);<a name="line.262"></a>
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name="line.263"></a>
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e);<a name="line.264"></a>
+<span class="sourceLineNo">265</span> } finally {<a name="line.265"></a>
+<span class="sourceLineNo">266</span>
currentThread.setContextClassLoader(cl);<a name="line.266"></a>
+<span class="sourceLineNo">267</span> }<a name="line.267"></a>
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name="line.269"></a>
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+<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><a name="line.274"></a>
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execute CoprocessorOperation's postEnvCall()<a name="line.275"></a>
+<span class="sourceLineNo">276</span> for (int i = 0; i < envsSize; i++)
{<a name="line.276"></a>
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envs.get(i);<a name="line.277"></a>
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name="line.278"></a>
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+<span class="sourceLineNo">282</span><a name="line.282"></a>
+<span class="sourceLineNo">283</span> /**<a name="line.283"></a>
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providing access to region server<a name="line.284"></a>
+<span class="sourceLineNo">285</span> * related services.<a
name="line.285"></a>
+<span class="sourceLineNo">286</span> */<a name="line.286"></a>
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extends CoprocessorHost.Environment<a name="line.287"></a>
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RegionServerCoprocessorEnvironment {<a name="line.288"></a>
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regionServerServices;<a name="line.289"></a>
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metricRegistry;<a name="line.290"></a>
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+<span class="sourceLineNo">292</span>
@edu.umd.cs.findbugs.annotations.SuppressWarnings(value="BC_UNCONFIRMED_CAST",<a
name="line.292"></a>
+<span class="sourceLineNo">293</span> justification="Intentional; FB
has trouble detecting isAssignableFrom")<a name="line.293"></a>
+<span class="sourceLineNo">294</span> public RegionServerEnvironment(final
Class<?> implClass,<a name="line.294"></a>
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priority, final int seq,<a name="line.295"></a>
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RegionServerServices services) {<a name="line.296"></a>
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name="line.297"></a>
+<span class="sourceLineNo">298</span> this.regionServerServices =
services;<a name="line.298"></a>
+<span class="sourceLineNo">299</span> for (Object itf :
ClassUtils.getAllInterfaces(implClass)) {<a name="line.299"></a>
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(Class<?>) itf;<a name="line.300"></a>
+<span class="sourceLineNo">301</span> if
(SingletonCoprocessorService.class.isAssignableFrom(c)) {// FindBugs:
BC_UNCONFIRMED_CAST<a name="line.301"></a>
+<span class="sourceLineNo">302</span>
this.regionServerServices.registerService(<a name="line.302"></a>
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((SingletonCoprocessorService) impl).getService());<a name="line.303"></a>
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+<span class="sourceLineNo">306</span> }<a name="line.306"></a>
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name="line.307"></a>
+<span class="sourceLineNo">308</span>
MetricsCoprocessor.createRegistryForRSCoprocessor(implClass.getName());<a
name="line.308"></a>
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getRegionServerServices() {<a name="line.312"></a>
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name="line.313"></a>
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name="line.322"></a>
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name="line.323"></a>
+<span class="sourceLineNo">324</span>
MetricsCoprocessor.removeRegistry(metricRegistry);<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><a name="line.327"></a>
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Coprocessors are chained in sorted<a name="line.329"></a>
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+<span class="sourceLineNo">331</span> */<a name="line.331"></a>
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EnvironmentPriorityComparator implements<a name="line.332"></a>
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Comparator<CoprocessorEnvironment> {<a name="line.333"></a>
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env2) {<a name="line.336"></a>
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env2.getPriority()) {<a name="line.339"></a>
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+<span class="sourceLineNo">344</span> } else if (env1.getLoadSequence()
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