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From git-site-r...@apache.org
Subject [21/51] [partial] hbase-site git commit: Published site at .
Date Thu, 23 Nov 2017 15:24:46 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/9118853f/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.html
index a9e8ff7..c670860 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.html
@@ -65,1723 +65,1733 @@
 <span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.57"></a>
 <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.coprocessor.BaseEnvironment;<a name="line.58"></a>
 <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.coprocessor.BulkLoadObserver;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.coprocessor.CoprocessorService;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.coprocessor.CoprocessorServiceBackwardCompatiblity;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.coprocessor.CoreCoprocessor;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.coprocessor.EndpointObserver;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.coprocessor.HasRegionServerServices;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.coprocessor.MetricsCoprocessor;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;<a name="line.68"></a>
-<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;<a name="line.69"></a>
-<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.coprocessor.RegionObserver;<a name="line.70"></a>
-<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.coprocessor.RegionObserver.MutationType;<a name="line.71"></a>
-<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.filter.ByteArrayComparable;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.io.FSDataInputStreamWrapper;<a name="line.73"></a>
-<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.io.Reference;<a name="line.74"></a>
-<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.io.hfile.CacheConfig;<a name="line.75"></a>
-<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.metrics.MetricRegistry;<a name="line.76"></a>
-<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.regionserver.Region.Operation;<a name="line.77"></a>
-<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker;<a name="line.78"></a>
-<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest;<a name="line.79"></a>
-<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.regionserver.querymatcher.DeleteTracker;<a name="line.80"></a>
-<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.security.User;<a name="line.81"></a>
-<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.82"></a>
-<span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.util.CoprocessorClassLoader;<a name="line.83"></a>
-<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.84"></a>
-<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.85"></a>
-<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.wal.WALKey;<a name="line.86"></a>
-<span class="sourceLineNo">087</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.87"></a>
-<span class="sourceLineNo">088</span><a name="line.88"></a>
-<span class="sourceLineNo">089</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.Lists;<a name="line.89"></a>
-<span class="sourceLineNo">090</span><a name="line.90"></a>
-<span class="sourceLineNo">091</span>/**<a name="line.91"></a>
-<span class="sourceLineNo">092</span> * Implements the coprocessor environment and runtime support for coprocessors<a name="line.92"></a>
-<span class="sourceLineNo">093</span> * loaded within a {@link Region}.<a name="line.93"></a>
-<span class="sourceLineNo">094</span> */<a name="line.94"></a>
-<span class="sourceLineNo">095</span>@InterfaceAudience.Private<a name="line.95"></a>
-<span class="sourceLineNo">096</span>public class RegionCoprocessorHost<a name="line.96"></a>
-<span class="sourceLineNo">097</span>    extends CoprocessorHost&lt;RegionCoprocessor, RegionCoprocessorEnvironment&gt; {<a name="line.97"></a>
-<span class="sourceLineNo">098</span><a name="line.98"></a>
-<span class="sourceLineNo">099</span>  private static final Log LOG = LogFactory.getLog(RegionCoprocessorHost.class);<a name="line.99"></a>
-<span class="sourceLineNo">100</span>  // The shared data map<a name="line.100"></a>
-<span class="sourceLineNo">101</span>  private static final ReferenceMap&lt;String, ConcurrentMap&lt;String, Object&gt;&gt; SHARED_DATA_MAP =<a name="line.101"></a>
-<span class="sourceLineNo">102</span>      new ReferenceMap&lt;&gt;(AbstractReferenceMap.ReferenceStrength.HARD,<a name="line.102"></a>
-<span class="sourceLineNo">103</span>          AbstractReferenceMap.ReferenceStrength.WEAK);<a name="line.103"></a>
-<span class="sourceLineNo">104</span><a name="line.104"></a>
-<span class="sourceLineNo">105</span>  // optimization: no need to call postScannerFilterRow, if no coprocessor implements it<a name="line.105"></a>
-<span class="sourceLineNo">106</span>  private final boolean hasCustomPostScannerFilterRow;<a name="line.106"></a>
-<span class="sourceLineNo">107</span><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>   * Encapsulation of the environment of each coprocessor<a name="line.110"></a>
-<span class="sourceLineNo">111</span>   */<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  private static class RegionEnvironment extends BaseEnvironment&lt;RegionCoprocessor&gt;<a name="line.112"></a>
-<span class="sourceLineNo">113</span>      implements RegionCoprocessorEnvironment {<a name="line.113"></a>
-<span class="sourceLineNo">114</span>    private Region region;<a name="line.114"></a>
-<span class="sourceLineNo">115</span>    ConcurrentMap&lt;String, Object&gt; sharedData;<a name="line.115"></a>
-<span class="sourceLineNo">116</span>    private final MetricRegistry metricRegistry;<a name="line.116"></a>
-<span class="sourceLineNo">117</span>    private final RegionServerServices services;<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>     * Constructor<a name="line.120"></a>
-<span class="sourceLineNo">121</span>     * @param impl the coprocessor instance<a name="line.121"></a>
-<span class="sourceLineNo">122</span>     * @param priority chaining priority<a name="line.122"></a>
-<span class="sourceLineNo">123</span>     */<a name="line.123"></a>
-<span class="sourceLineNo">124</span>    public RegionEnvironment(final RegionCoprocessor impl, final int priority,<a name="line.124"></a>
-<span class="sourceLineNo">125</span>        final int seq, final Configuration conf, final Region region,<a name="line.125"></a>
-<span class="sourceLineNo">126</span>        final RegionServerServices services, final ConcurrentMap&lt;String, Object&gt; sharedData) {<a name="line.126"></a>
-<span class="sourceLineNo">127</span>      super(impl, priority, seq, conf);<a name="line.127"></a>
-<span class="sourceLineNo">128</span>      this.region = region;<a name="line.128"></a>
-<span class="sourceLineNo">129</span>      this.sharedData = sharedData;<a name="line.129"></a>
-<span class="sourceLineNo">130</span>      this.services = services;<a name="line.130"></a>
-<span class="sourceLineNo">131</span>      this.metricRegistry =<a name="line.131"></a>
-<span class="sourceLineNo">132</span>          MetricsCoprocessor.createRegistryForRegionCoprocessor(impl.getClass().getName());<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 the region */<a name="line.135"></a>
-<span class="sourceLineNo">136</span>    @Override<a name="line.136"></a>
-<span class="sourceLineNo">137</span>    public Region getRegion() {<a name="line.137"></a>
-<span class="sourceLineNo">138</span>      return region;<a name="line.138"></a>
-<span class="sourceLineNo">139</span>    }<a name="line.139"></a>
-<span class="sourceLineNo">140</span><a name="line.140"></a>
-<span class="sourceLineNo">141</span>    public OnlineRegions getOnlineRegions() {<a name="line.141"></a>
-<span class="sourceLineNo">142</span>      return this.services;<a name="line.142"></a>
-<span class="sourceLineNo">143</span>    }<a name="line.143"></a>
-<span class="sourceLineNo">144</span><a name="line.144"></a>
-<span class="sourceLineNo">145</span>    @Override<a name="line.145"></a>
-<span class="sourceLineNo">146</span>    public Connection getConnection() {<a name="line.146"></a>
-<span class="sourceLineNo">147</span>      // Mocks may have services as null at test time.<a name="line.147"></a>
-<span class="sourceLineNo">148</span>      return services != null ? services.getConnection() : null;<a name="line.148"></a>
-<span class="sourceLineNo">149</span>    }<a name="line.149"></a>
-<span class="sourceLineNo">150</span><a name="line.150"></a>
-<span class="sourceLineNo">151</span>    @Override<a name="line.151"></a>
-<span class="sourceLineNo">152</span>    public Connection createConnection(Configuration conf) throws IOException {<a name="line.152"></a>
-<span class="sourceLineNo">153</span>      return services != null ? this.services.createConnection(conf) : null;<a name="line.153"></a>
-<span class="sourceLineNo">154</span>    }<a name="line.154"></a>
-<span class="sourceLineNo">155</span><a name="line.155"></a>
-<span class="sourceLineNo">156</span>    @Override<a name="line.156"></a>
-<span class="sourceLineNo">157</span>    public ServerName getServerName() {<a name="line.157"></a>
-<span class="sourceLineNo">158</span>      return services != null? services.getServerName(): null;<a name="line.158"></a>
-<span class="sourceLineNo">159</span>    }<a name="line.159"></a>
-<span class="sourceLineNo">160</span><a name="line.160"></a>
-<span class="sourceLineNo">161</span>    @Override<a name="line.161"></a>
-<span class="sourceLineNo">162</span>    public void shutdown() {<a name="line.162"></a>
-<span class="sourceLineNo">163</span>      super.shutdown();<a name="line.163"></a>
-<span class="sourceLineNo">164</span>      MetricsCoprocessor.removeRegistry(this.metricRegistry);<a name="line.164"></a>
-<span class="sourceLineNo">165</span>    }<a name="line.165"></a>
-<span class="sourceLineNo">166</span><a name="line.166"></a>
-<span class="sourceLineNo">167</span>    @Override<a name="line.167"></a>
-<span class="sourceLineNo">168</span>    public ConcurrentMap&lt;String, Object&gt; getSharedData() {<a name="line.168"></a>
-<span class="sourceLineNo">169</span>      return sharedData;<a name="line.169"></a>
-<span class="sourceLineNo">170</span>    }<a name="line.170"></a>
-<span class="sourceLineNo">171</span><a name="line.171"></a>
-<span class="sourceLineNo">172</span>    @Override<a name="line.172"></a>
-<span class="sourceLineNo">173</span>    public RegionInfo getRegionInfo() {<a name="line.173"></a>
-<span class="sourceLineNo">174</span>      return region.getRegionInfo();<a name="line.174"></a>
-<span class="sourceLineNo">175</span>    }<a name="line.175"></a>
-<span class="sourceLineNo">176</span><a name="line.176"></a>
-<span class="sourceLineNo">177</span>    @Override<a name="line.177"></a>
-<span class="sourceLineNo">178</span>    public MetricRegistry getMetricRegistryForRegionServer() {<a name="line.178"></a>
-<span class="sourceLineNo">179</span>      return metricRegistry;<a name="line.179"></a>
-<span class="sourceLineNo">180</span>    }<a name="line.180"></a>
-<span class="sourceLineNo">181</span>  }<a name="line.181"></a>
-<span class="sourceLineNo">182</span><a name="line.182"></a>
-<span class="sourceLineNo">183</span>  /**<a name="line.183"></a>
-<span class="sourceLineNo">184</span>   * Special version of RegionEnvironment that exposes RegionServerServices for Core<a name="line.184"></a>
-<span class="sourceLineNo">185</span>   * Coprocessors only. Temporary hack until Core Coprocessors are integrated into Core.<a name="line.185"></a>
-<span class="sourceLineNo">186</span>   */<a name="line.186"></a>
-<span class="sourceLineNo">187</span>  private static class RegionEnvironmentForCoreCoprocessors extends<a name="line.187"></a>
-<span class="sourceLineNo">188</span>      RegionEnvironment implements HasRegionServerServices {<a name="line.188"></a>
-<span class="sourceLineNo">189</span>    private final RegionServerServices rsServices;<a name="line.189"></a>
-<span class="sourceLineNo">190</span><a name="line.190"></a>
-<span class="sourceLineNo">191</span>    public RegionEnvironmentForCoreCoprocessors(final RegionCoprocessor impl, final int priority,<a name="line.191"></a>
-<span class="sourceLineNo">192</span>      final int seq, final Configuration conf, final Region region,<a name="line.192"></a>
-<span class="sourceLineNo">193</span>      final RegionServerServices services, final ConcurrentMap&lt;String, Object&gt; sharedData) {<a name="line.193"></a>
-<span class="sourceLineNo">194</span>      super(impl, priority, seq, conf, region, services, sharedData);<a name="line.194"></a>
-<span class="sourceLineNo">195</span>      this.rsServices = services;<a name="line.195"></a>
-<span class="sourceLineNo">196</span>    }<a name="line.196"></a>
-<span class="sourceLineNo">197</span><a name="line.197"></a>
-<span class="sourceLineNo">198</span>    /**<a name="line.198"></a>
-<span class="sourceLineNo">199</span>     * @return An instance of RegionServerServices, an object NOT for general user-space Coprocessor<a name="line.199"></a>
-<span class="sourceLineNo">200</span>     * consumption.<a name="line.200"></a>
-<span class="sourceLineNo">201</span>     */<a name="line.201"></a>
-<span class="sourceLineNo">202</span>    public RegionServerServices getRegionServerServices() {<a name="line.202"></a>
-<span class="sourceLineNo">203</span>      return this.rsServices;<a name="line.203"></a>
-<span class="sourceLineNo">204</span>    }<a name="line.204"></a>
-<span class="sourceLineNo">205</span>  }<a name="line.205"></a>
-<span class="sourceLineNo">206</span><a name="line.206"></a>
-<span class="sourceLineNo">207</span>  static class TableCoprocessorAttribute {<a name="line.207"></a>
-<span class="sourceLineNo">208</span>    private Path path;<a name="line.208"></a>
-<span class="sourceLineNo">209</span>    private String className;<a name="line.209"></a>
-<span class="sourceLineNo">210</span>    private int priority;<a name="line.210"></a>
-<span class="sourceLineNo">211</span>    private Configuration conf;<a name="line.211"></a>
-<span class="sourceLineNo">212</span><a name="line.212"></a>
-<span class="sourceLineNo">213</span>    public TableCoprocessorAttribute(Path path, String className, int priority,<a name="line.213"></a>
-<span class="sourceLineNo">214</span>        Configuration conf) {<a name="line.214"></a>
-<span class="sourceLineNo">215</span>      this.path = path;<a name="line.215"></a>
-<span class="sourceLineNo">216</span>      this.className = className;<a name="line.216"></a>
-<span class="sourceLineNo">217</span>      this.priority = priority;<a name="line.217"></a>
-<span class="sourceLineNo">218</span>      this.conf = conf;<a name="line.218"></a>
-<span class="sourceLineNo">219</span>    }<a name="line.219"></a>
-<span class="sourceLineNo">220</span><a name="line.220"></a>
-<span class="sourceLineNo">221</span>    public Path getPath() {<a name="line.221"></a>
-<span class="sourceLineNo">222</span>      return path;<a name="line.222"></a>
-<span class="sourceLineNo">223</span>    }<a name="line.223"></a>
-<span class="sourceLineNo">224</span><a name="line.224"></a>
-<span class="sourceLineNo">225</span>    public String getClassName() {<a name="line.225"></a>
-<span class="sourceLineNo">226</span>      return className;<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 int getPriority() {<a name="line.229"></a>
-<span class="sourceLineNo">230</span>      return priority;<a name="line.230"></a>
-<span class="sourceLineNo">231</span>    }<a name="line.231"></a>
-<span class="sourceLineNo">232</span><a name="line.232"></a>
-<span class="sourceLineNo">233</span>    public Configuration getConf() {<a name="line.233"></a>
-<span class="sourceLineNo">234</span>      return conf;<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>  /** The region server services */<a name="line.238"></a>
-<span class="sourceLineNo">239</span>  RegionServerServices rsServices;<a name="line.239"></a>
-<span class="sourceLineNo">240</span>  /** The region */<a name="line.240"></a>
-<span class="sourceLineNo">241</span>  HRegion region;<a name="line.241"></a>
-<span class="sourceLineNo">242</span><a name="line.242"></a>
-<span class="sourceLineNo">243</span>  /**<a name="line.243"></a>
-<span class="sourceLineNo">244</span>   * Constructor<a name="line.244"></a>
-<span class="sourceLineNo">245</span>   * @param region the region<a name="line.245"></a>
-<span class="sourceLineNo">246</span>   * @param rsServices interface to available region server functionality<a name="line.246"></a>
-<span class="sourceLineNo">247</span>   * @param conf the configuration<a name="line.247"></a>
-<span class="sourceLineNo">248</span>   */<a name="line.248"></a>
-<span class="sourceLineNo">249</span>  public RegionCoprocessorHost(final HRegion region,<a name="line.249"></a>
-<span class="sourceLineNo">250</span>      final RegionServerServices rsServices, final Configuration conf) {<a name="line.250"></a>
-<span class="sourceLineNo">251</span>    super(rsServices);<a name="line.251"></a>
-<span class="sourceLineNo">252</span>    this.conf = conf;<a name="line.252"></a>
-<span class="sourceLineNo">253</span>    this.rsServices = rsServices;<a name="line.253"></a>
-<span class="sourceLineNo">254</span>    this.region = region;<a name="line.254"></a>
-<span class="sourceLineNo">255</span>    this.pathPrefix = Integer.toString(this.region.getRegionInfo().hashCode());<a name="line.255"></a>
-<span class="sourceLineNo">256</span><a name="line.256"></a>
-<span class="sourceLineNo">257</span>    // load system default cp's from configuration.<a name="line.257"></a>
-<span class="sourceLineNo">258</span>    loadSystemCoprocessors(conf, REGION_COPROCESSOR_CONF_KEY);<a name="line.258"></a>
-<span class="sourceLineNo">259</span><a name="line.259"></a>
-<span class="sourceLineNo">260</span>    // load system default cp's for user tables from configuration.<a name="line.260"></a>
-<span class="sourceLineNo">261</span>    if (!region.getRegionInfo().getTable().isSystemTable()) {<a name="line.261"></a>
-<span class="sourceLineNo">262</span>      loadSystemCoprocessors(conf, USER_REGION_COPROCESSOR_CONF_KEY);<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>    // load Coprocessor From HDFS<a name="line.265"></a>
-<span class="sourceLineNo">266</span>    loadTableCoprocessors(conf);<a name="line.266"></a>
-<span class="sourceLineNo">267</span><a name="line.267"></a>
-<span class="sourceLineNo">268</span>    // now check whether any coprocessor implements postScannerFilterRow<a name="line.268"></a>
-<span class="sourceLineNo">269</span>    boolean hasCustomPostScannerFilterRow = false;<a name="line.269"></a>
-<span class="sourceLineNo">270</span>    out: for (RegionCoprocessorEnvironment env: coprocEnvironments) {<a name="line.270"></a>
-<span class="sourceLineNo">271</span>      if (env.getInstance() instanceof RegionObserver) {<a name="line.271"></a>
-<span class="sourceLineNo">272</span>        Class&lt;?&gt; clazz = env.getInstance().getClass();<a name="line.272"></a>
-<span class="sourceLineNo">273</span>        for(;;) {<a name="line.273"></a>
-<span class="sourceLineNo">274</span>          if (clazz == null) {<a name="line.274"></a>
-<span class="sourceLineNo">275</span>            // we must have directly implemented RegionObserver<a name="line.275"></a>
-<span class="sourceLineNo">276</span>            hasCustomPostScannerFilterRow = true;<a name="line.276"></a>
-<span class="sourceLineNo">277</span>            break out;<a name="line.277"></a>
-<span class="sourceLineNo">278</span>          }<a name="line.278"></a>
-<span class="sourceLineNo">279</span>          try {<a name="line.279"></a>
-<span class="sourceLineNo">280</span>            clazz.getDeclaredMethod("postScannerFilterRow", ObserverContext.class,<a name="line.280"></a>
-<span class="sourceLineNo">281</span>              InternalScanner.class, Cell.class, boolean.class);<a name="line.281"></a>
-<span class="sourceLineNo">282</span>            // this coprocessor has a custom version of postScannerFilterRow<a name="line.282"></a>
-<span class="sourceLineNo">283</span>            hasCustomPostScannerFilterRow = true;<a name="line.283"></a>
-<span class="sourceLineNo">284</span>            break out;<a name="line.284"></a>
-<span class="sourceLineNo">285</span>          } catch (NoSuchMethodException ignore) {<a name="line.285"></a>
-<span class="sourceLineNo">286</span>          }<a name="line.286"></a>
-<span class="sourceLineNo">287</span>          // the deprecated signature still exists<a name="line.287"></a>
-<span class="sourceLineNo">288</span>          try {<a name="line.288"></a>
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-<span class="sourceLineNo">290</span>              InternalScanner.class, byte[].class, int.class, short.class, boolean.class);<a name="line.290"></a>
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+<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.coprocessor.RegionObserver.MutationType;<a name="line.72"></a>
+<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.filter.ByteArrayComparable;<a name="line.73"></a>
+<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.io.FSDataInputStreamWrapper;<a name="line.74"></a>
+<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.io.Reference;<a name="line.75"></a>
+<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.io.hfile.CacheConfig;<a name="line.76"></a>
+<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.metrics.MetricRegistry;<a name="line.77"></a>
+<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.regionserver.Region.Operation;<a name="line.78"></a>
+<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker;<a name="line.79"></a>
+<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest;<a name="line.80"></a>
+<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.regionserver.querymatcher.DeleteTracker;<a name="line.81"></a>
+<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.security.User;<a name="line.82"></a>
+<span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.83"></a>
+<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.util.CoprocessorClassLoader;<a name="line.84"></a>
+<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.85"></a>
+<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.86"></a>
+<span class="sourceLineNo">087</span>import org.apache.hadoop.hbase.wal.WALKey;<a name="line.87"></a>
+<span class="sourceLineNo">088</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.Lists;<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> * Implements the coprocessor environment and runtime support for coprocessors<a name="line.93"></a>
+<span class="sourceLineNo">094</span> * loaded within a {@link Region}.<a name="line.94"></a>
+<span class="sourceLineNo">095</span> */<a name="line.95"></a>
+<span class="sourceLineNo">096</span>@InterfaceAudience.Private<a name="line.96"></a>
+<span class="sourceLineNo">097</span>public class RegionCoprocessorHost<a name="line.97"></a>
+<span class="sourceLineNo">098</span>    extends CoprocessorHost&lt;RegionCoprocessor, RegionCoprocessorEnvironment&gt; {<a name="line.98"></a>
+<span class="sourceLineNo">099</span><a name="line.99"></a>
+<span class="sourceLineNo">100</span>  private static final Log LOG = LogFactory.getLog(RegionCoprocessorHost.class);<a name="line.100"></a>
+<span class="sourceLineNo">101</span>  // The shared data map<a name="line.101"></a>
+<span class="sourceLineNo">102</span>  private static final ReferenceMap&lt;String, ConcurrentMap&lt;String, Object&gt;&gt; SHARED_DATA_MAP =<a name="line.102"></a>
+<span class="sourceLineNo">103</span>      new ReferenceMap&lt;&gt;(AbstractReferenceMap.ReferenceStrength.HARD,<a name="line.103"></a>
+<span class="sourceLineNo">104</span>          AbstractReferenceMap.ReferenceStrength.WEAK);<a name="line.104"></a>
+<span class="sourceLineNo">105</span><a name="line.105"></a>
+<span class="sourceLineNo">106</span>  // optimization: no need to call postScannerFilterRow, if no coprocessor implements it<a name="line.106"></a>
+<span class="sourceLineNo">107</span>  private final boolean hasCustomPostScannerFilterRow;<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>   * Encapsulation of the environment of each coprocessor<a name="line.111"></a>
+<span class="sourceLineNo">112</span>   */<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  private static class RegionEnvironment extends BaseEnvironment&lt;RegionCoprocessor&gt;<a name="line.113"></a>
+<span class="sourceLineNo">114</span>      implements RegionCoprocessorEnvironment {<a name="line.114"></a>
+<span class="sourceLineNo">115</span>    private Region region;<a name="line.115"></a>
+<span class="sourceLineNo">116</span>    ConcurrentMap&lt;String, Object&gt; sharedData;<a name="line.116"></a>
+<span class="sourceLineNo">117</span>    private final MetricRegistry metricRegistry;<a name="line.117"></a>
+<span class="sourceLineNo">118</span>    private final RegionServerServices services;<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>     * Constructor<a name="line.121"></a>
+<span class="sourceLineNo">122</span>     * @param impl the coprocessor instance<a name="line.122"></a>
+<span class="sourceLineNo">123</span>     * @param priority chaining priority<a name="line.123"></a>
+<span class="sourceLineNo">124</span>     */<a name="line.124"></a>
+<span class="sourceLineNo">125</span>    public RegionEnvironment(final RegionCoprocessor impl, final int priority,<a name="line.125"></a>
+<span class="sourceLineNo">126</span>        final int seq, final Configuration conf, final Region region,<a name="line.126"></a>
+<span class="sourceLineNo">127</span>        final RegionServerServices services, final ConcurrentMap&lt;String, Object&gt; sharedData) {<a name="line.127"></a>
+<span class="sourceLineNo">128</span>      super(impl, priority, seq, conf);<a name="line.128"></a>
+<span class="sourceLineNo">129</span>      this.region = region;<a name="line.129"></a>
+<span class="sourceLineNo">130</span>      this.sharedData = sharedData;<a name="line.130"></a>
+<span class="sourceLineNo">131</span>      this.services = services;<a name="line.131"></a>
+<span class="sourceLineNo">132</span>      this.metricRegistry =<a name="line.132"></a>
+<span class="sourceLineNo">133</span>          MetricsCoprocessor.createRegistryForRegionCoprocessor(impl.getClass().getName());<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>    /** @return the region */<a name="line.136"></a>
+<span class="sourceLineNo">137</span>    @Override<a name="line.137"></a>
+<span class="sourceLineNo">138</span>    public Region getRegion() {<a name="line.138"></a>
+<span class="sourceLineNo">139</span>      return region;<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>    public OnlineRegions getOnlineRegions() {<a name="line.142"></a>
+<span class="sourceLineNo">143</span>      return this.services;<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>    @Override<a name="line.146"></a>
+<span class="sourceLineNo">147</span>    public Connection getConnection() {<a name="line.147"></a>
+<span class="sourceLineNo">148</span>      // Mocks may have services as null at test time.<a name="line.148"></a>
+<span class="sourceLineNo">149</span>      return services != null ? services.getConnection() : null;<a name="line.149"></a>
+<span class="sourceLineNo">150</span>    }<a name="line.150"></a>
+<span class="sourceLineNo">151</span><a name="line.151"></a>
+<span class="sourceLineNo">152</span>    @Override<a name="line.152"></a>
+<span class="sourceLineNo">153</span>    public Connection createConnection(Configuration conf) throws IOException {<a name="line.153"></a>
+<span class="sourceLineNo">154</span>      return services != null ? this.services.createConnection(conf) : null;<a name="line.154"></a>
+<span class="sourceLineNo">155</span>    }<a name="line.155"></a>
+<span class="sourceLineNo">156</span><a name="line.156"></a>
+<span class="sourceLineNo">157</span>    @Override<a name="line.157"></a>
+<span class="sourceLineNo">158</span>    public ServerName getServerName() {<a name="line.158"></a>
+<span class="sourceLineNo">159</span>      return services != null? services.getServerName(): null;<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 void shutdown() {<a name="line.163"></a>
+<span class="sourceLineNo">164</span>      super.shutdown();<a name="line.164"></a>
+<span class="sourceLineNo">165</span>      MetricsCoprocessor.removeRegistry(this.metricRegistry);<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>    @Override<a name="line.168"></a>
+<span class="sourceLineNo">169</span>    public ConcurrentMap&lt;String, Object&gt; getSharedData() {<a name="line.169"></a>
+<span class="sourceLineNo">170</span>      return sharedData;<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    }<a name="line.171"></a>
+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>    @Override<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    public RegionInfo getRegionInfo() {<a name="line.174"></a>
+<span class="sourceLineNo">175</span>      return region.getRegionInfo();<a name="line.175"></a>
+<span class="sourceLineNo">176</span>    }<a name="line.176"></a>
+<span class="sourceLineNo">177</span><a name="line.177"></a>
+<span class="sourceLineNo">178</span>    @Override<a name="line.178"></a>
+<span class="sourceLineNo">179</span>    public MetricRegistry getMetricRegistryForRegionServer() {<a name="line.179"></a>
+<span class="sourceLineNo">180</span>      return metricRegistry;<a name="line.180"></a>
+<span class="sourceLineNo">181</span>    }<a name="line.181"></a>
+<span class="sourceLineNo">182</span>  }<a name="line.182"></a>
+<span class="sourceLineNo">183</span><a name="line.183"></a>
+<span class="sourceLineNo">184</span>  /**<a name="line.184"></a>
+<span class="sourceLineNo">185</span>   * Special version of RegionEnvironment that exposes RegionServerServices for Core<a name="line.185"></a>
+<span class="sourceLineNo">186</span>   * Coprocessors only. Temporary hack until Core Coprocessors are integrated into Core.<a name="line.186"></a>
+<span class="sourceLineNo">187</span>   */<a name="line.187"></a>
+<span class="sourceLineNo">188</span>  private static class RegionEnvironmentForCoreCoprocessors extends<a name="line.188"></a>
+<span class="sourceLineNo">189</span>      RegionEnvironment implements HasRegionServerServices {<a name="line.189"></a>
+<span class="sourceLineNo">190</span>    private final RegionServerServices rsServices;<a name="line.190"></a>
+<span class="sourceLineNo">191</span><a name="line.191"></a>
+<span class="sourceLineNo">192</span>    public RegionEnvironmentForCoreCoprocessors(final RegionCoprocessor impl, final int priority,<a name="line.192"></a>
+<span class="sourceLineNo">193</span>      final int seq, final Configuration conf, final Region region,<a name="line.193"></a>
+<span class="sourceLineNo">194</span>      final RegionServerServices services, final ConcurrentMap&lt;String, Object&gt; sharedData) {<a name="line.194"></a>
+<span class="sourceLineNo">195</span>      super(impl, priority, seq, conf, region, services, sharedData);<a name="line.195"></a>
+<span class="sourceLineNo">196</span>      this.rsServices = services;<a name="line.196"></a>
+<span class="sourceLineNo">197</span>    }<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>     * @return An instance of RegionServerServices, an object NOT for general user-space Coprocessor<a name="line.200"></a>
+<span class="sourceLineNo">201</span>     * consumption.<a name="line.201"></a>
+<span class="sourceLineNo">202</span>     */<a name="line.202"></a>
+<span class="sourceLineNo">203</span>    public RegionServerServices getRegionServerServices() {<a name="line.203"></a>
+<span class="sourceLineNo">204</span>      return this.rsServices;<a name="line.204"></a>
+<span class="sourceLineNo">205</span>    }<a name="line.205"></a>
+<span class="sourceLineNo">206</span>  }<a name="line.206"></a>
+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span>  static class TableCoprocessorAttribute {<a name="line.208"></a>
+<span class="sourceLineNo">209</span>    private Path path;<a name="line.209"></a>
+<span class="sourceLineNo">210</span>    private String className;<a name="line.210"></a>
+<span class="sourceLineNo">211</span>    private int priority;<a name="line.211"></a>
+<span class="sourceLineNo">212</span>    private Configuration conf;<a name="line.212"></a>
+<span class="sourceLineNo">213</span><a name="line.213"></a>
+<span class="sourceLineNo">214</span>    public TableCoprocessorAttribute(Path path, String className, int priority,<a name="line.214"></a>
+<span class="sourceLineNo">215</span>        Configuration conf) {<a name="line.215"></a>
+<span class="sourceLineNo">216</span>      this.path = path;<a name="line.216"></a>
+<span class="sourceLineNo">217</span>      this.className = className;<a name="line.217"></a>
+<span class="sourceLineNo">218</span>      this.priority = priority;<a name="line.218"></a>
+<span class="sourceLineNo">219</span>      this.conf = conf;<a name="line.219"></a>
+<span class="sourceLineNo">220</span>    }<a name="line.220"></a>
+<span class="sourceLineNo">221</span><a name="line.221"></a>
+<span class="sourceLineNo">222</span>    public Path getPath() {<a name="line.222"></a>
+<span class="sourceLineNo">223</span>      return path;<a name="line.223"></a>
+<span class="sourceLineNo">224</span>    }<a name="line.224"></a>
+<span class="sourceLineNo">225</span><a name="line.225"></a>
+<span class="sourceLineNo">226</span>    public String getClassName() {<a name="line.226"></a>
+<span class="sourceLineNo">227</span>      return className;<a name="line.227"></a>
+<span class="sourceLineNo">228</span>    }<a name="line.228"></a>
+<span class="sourceLineNo">229</span><a name="line.229"></a>
+<span class="sourceLineNo">230</span>    public int getPriority() {<a name="line.230"></a>
+<span class="sourceLineNo">231</span>      return priority;<a name="line.231"></a>
+<span class="sourceLineNo">232</span>    }<a name="line.232"></a>
+<span class="sourceLineNo">233</span><a name="line.233"></a>
+<span class="sourceLineNo">234</span>    public Configuration getConf() {<a name="line.234"></a>
+<span class="sourceLineNo">235</span>      return conf;<a name="line.235"></a>
+<span class="sourceLineNo">236</span>    }<a name="line.236"></a>
+<span class="sourceLineNo">237</span>  }<a name="line.237"></a>
+<span class="sourceLineNo">238</span><a name="line.238"></a>
+<span class="sourceLineNo">239</span>  /** The region server services */<a name="line.239"></a>
+<span class="sourceLineNo">240</span>  RegionServerServices rsServices;<a name="line.240"></a>
+<span class="sourceLineNo">241</span>  /** The region */<a name="line.241"></a>
+<span class="sourceLineNo">242</span>  HRegion region;<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>   * Constructor<a name="line.245"></a>
+<span class="sourceLineNo">246</span>   * @param region the region<a name="line.246"></a>
+<span class="sourceLineNo">247</span>   * @param rsServices interface to available region server functionality<a name="line.247"></a>
+<span class="sourceLineNo">248</span>   * @param conf the configuration<a name="line.248"></a>
+<span class="sourceLineNo">249</span>   */<a name="line.249"></a>
+<span class="sourceLineNo">250</span>  public RegionCoprocessorHost(final HRegion region,<a name="line.250"></a>
+<span class="sourceLineNo">251</span>      final RegionServerServices rsServices, final Configuration conf) {<a name="line.251"></a>
+<span class="sourceLineNo">252</span>    super(rsServices);<a name="line.252"></a>
+<span class="sourceLineNo">253</span>    this.conf = conf;<a name="line.253"></a>
+<span class="sourceLineNo">254</span>    this.rsServices = rsServices;<a name="line.254"></a>
+<span class="sourceLineNo">255</span>    this.region = region;<a name="line.255"></a>
+<span class="sourceLineNo">256</span>    this.pathPrefix = Integer.toString(this.region.getRegionInfo().hashCode());<a name="line.256"></a>
+<span class="sourceLineNo">257</span><a name="line.257"></a>
+<span class="sourceLineNo">258</span>    // load system default cp's from configuration.<a name="line.258"></a>
+<span class="sourceLineNo">259</span>    loadSystemCoprocessors(conf, REGION_COPROCESSOR_CONF_KEY);<a name="line.259"></a>
+<span class="sourceLineNo">260</span><a name="line.260"></a>
+<span class="sourceLineNo">261</span>    // load system default cp's for user tables from configuration.<a name="line.261"></a>
+<span class="sourceLineNo">262</span>    if (!region.getRegionInfo().getTable().isSystemTable()) {<a name="line.262"></a>
+<span class="sourceLineNo">263</span>      loadSystemCoprocessors(conf, USER_REGION_COPROCESSOR_CONF_KEY);<a name="line.263"></a>
+<span class="sourceLineNo">264</span>    }<a name="line.264"></a>
+<span class="sourceLineNo">265</span><a name="line.265"></a>
+<span class="sourceLineNo">266</span>    // load Coprocessor From HDFS<a name="line.266"></a>
+<span class="sourceLineNo">267</span>    loadTableCoprocessors(conf);<a name="line.267"></a>
+<span class="sourceLineNo">268</span><a name="line.268"></a>
+<span class="sourceLineNo">269</span>    // now check whether any coprocessor implements postScannerFilterRow<a name="line.269"></a>
+<span class="sourceLineNo">270</span>    boolean hasCustomPostScannerFilterRow = false;<a name="line.270"></a>
+<span class="sourceLineNo">271</span>    out: for (RegionCoprocessorEnvironment env: coprocEnvironments) {<a name="line.271"></a>
+<span class="sourceLineNo">272</span>      if (env.getInstance() instanceof RegionObserver) {<a name="line.272"></a>
+<span class="sourceLineNo">273</span>        Class&lt;?&gt; clazz = env.getInstance().getClass();<a name="line.273"></a>
+<span class="sourceLineNo">274</span>        for(;;) {<a name="line.274"></a>
+<span class="sourceLineNo">275</span>          if (clazz == null) {<a name="line.275"></a>
+<span class="sourceLineNo">276</span>            // we must have directly implemented RegionObserver<a name="line.276"></a>
+<span class="sourceLineNo">277</span>            hasCustomPostScannerFilterRow = true;<a name="line.277"></a>
+<span class="sourceLineNo">278</span>            break out;<a name="line.278"></a>
+<span class="sourceLineNo">279</span>          }<a name="line.279"></a>
+<span class="sourceLineNo">280</span>          try {<a name="line.280"></a>
+<span class="sourceLineNo">281</span>            clazz.getDeclaredMethod("postScannerFilterRow", ObserverContext.class,<a name="line.281"></a>
+<span class="sourceLineNo">282</span>              InternalScanner.class, Cell.class, boolean.class);<a name="line.282"></a>
+<span class="sourceLineNo">283</span>            // this coprocessor has a custom version of postScannerFilterRow<a name="line.283"></a>
+<span class="sourceLineNo">284</span>            hasCustomPostScannerFilterRow = true;<a name="line.284"></a>
+<span class="sourceLineNo">285</span>            break out;<a name="line.285"></a>
+<span class="sourceLineNo">286</span>          } catch (NoSuchMethodException ignore) {<a name="line.286"></a>
+<span class="sourceLineNo">287</span>          }<a name="line.287"></a>
+<span class="sourceLineNo">288</span>          // the deprecated signature still exists<a name="line.288"></a>
+<span class="sourceLineNo">289</span>          try {<a name="line.289"></a>
+<span class="sourceLineNo">290</span>            clazz.getDeclaredMethod("postScannerFilterRow", ObserverContext.class,<a name="line.290"></a>
+<span class="sourceLineNo">291</span>              InternalScanner.class, byte[].class, int.class, short.class, boolean.class);<a name="line.291"></a>
+<span class="sourceLineNo">292</span>            // this coprocessor has a custom version of postScannerFilterRow<a name="line.292"></a>
+<span class="sourceLineNo">293</span>            hasCustomPostScannerFilterRow = true;<a name="line.293"></a>
+<span class="sourceLineNo">294</span>            break out;<a name="line.294"></a>
+<span class="sourceLineNo">295</span>          } catch (NoSuchMethodException ignore) {<a name="line.295"></a>
+<span class="sourceLineNo">296</span>          }<a name="line.296"></a>
+<span class="sourceLineNo">297</span>          clazz = clazz.getSuperclass();<a name="line.297"></a>
+<span class="sourceLineNo">298</span>        }<a name="line.298"></a>
+<span class="sourceLineNo">299</span>      }<a name="line.299"></a>
+<span class="sourceLineNo">300</span>    }<a name="line.300"></a>
+<span class="sourceLineNo">301</span>    this.hasCustomPostScannerFilterRow = hasCustomPostScannerFilterRow;<a name="line.301"></a>
+<span class="sourceLineNo">302</span>  }<a name="line.302"></a>
+<span class="sourceLineNo">303</span><a name="line.303"></a>
+<span class="sourceLineNo">304</span>  static List&lt;TableCoprocessorAttribute&gt; getTableCoprocessorAttrsFromSchema(Configuration conf,<a name="line.304"></a>
+<span class="sourceLineNo">305</span>      TableDescriptor htd) {<a name="line.305"></a>
+<span class="sourceLineNo">306</span>    List&lt;TableCoprocessorAttribute&gt; result = Lists.newArrayList();<a name="line.306"></a>
+<span class="sourceLineNo">307</span>    for (Map.Entry&lt;Bytes, Bytes&gt; e: htd.getValues().entrySet()) {<a name="line.307"></a>
+<span class="sourceLineNo">308</span>      String key = Bytes.toString(e.getKey().get()).trim();<a name="line.308"></a>
+<span class="sourceLineNo">309</span>      if (HConstants.CP_HTD_ATTR_KEY_PATTERN.matcher(key).matches()) {<a name="line.309"></a>
+<span class="sourceLineNo">310</span>        String spec = Bytes.toString(e.getValue().get()).trim();<a name="line.310"></a>
+<span class="sourceLineNo">311</span>        // found one<a name="line.311"></a>
+<span class="sourceLineNo">312</span>        try {<a name="line.312"></a>
+<span class="sourceLineNo">313</span>          Matcher matcher = HConstants.CP_HTD_ATTR_VALUE_PATTERN.matcher(spec);<a name="line.313"></a>
+<span class="sourceLineNo">314</span>          if (matcher.matches()) {<a name="line.314"></a>
+<span class="sourceLineNo">315</span>            // jar file path can be empty if the cp class can be loaded<a name="line.315"></a>
+<span class="sourceLineNo">316</span>            // from class loader.<a name="line.316"></a>
+<span class="sourceLineNo">317</span>            Path path = matcher.group(1).trim().isEmpty() ?<a name="line.317"></a>
+<span class="sourceLineNo">318</span>                null : new Path(matcher.group(1).trim());<a name="line.318"></a>
+<span class="sourceLineNo">319</span>            String className = matcher.group(2).trim();<a name="line.319"></a>
+<span class="sourceLineNo">320</span>            if (className.isEmpty()) {<a name="line.320"></a>
+<span class="sourceLineNo">321</span>              LOG.error("Malformed table coprocessor specification: key=" +<a name="line.321"></a>
+<span class="sourceLineNo">322</span>                key + ", spec: " + spec);<a name="line.322"></a>
+<span class="sourceLineNo">323</span>              continue;<a name="line.323"></a>
+<span class="sourceLineNo">324</span>            }<a name="line.324"></a>
+<span class="sourceLineNo">325</span>            String priorityStr = matcher.group(3).trim();<a name="line.325"></a>
+<span class="sourceLineNo">326</span>            int priority = priorityStr.isEmpty() ?<a name="line.326"></a>
+<span class="sourceLineNo">327</span>                Coprocessor.PRIORITY_USER : Integer.parseInt(priorityStr);<a name="line.327"></a>
+<span class="sourceLineNo">328</span>            String cfgSpec = null;<a name="line.328"></a>
+<span class="sourceLineNo">329</span>            try {<a name="line.329"></a>
+<span class="sourceLineNo">330</span>              cfgSpec = matcher.group(4);<a name="line.330"></a>
+<span class="sourceLineNo">331</span>            } catch (IndexOutOfBoundsException ex) {<a name="line.331"></a>
+<span class="sourceLineNo">332</span>              // ignore<a name="line.332"></a>
+<span class="sourceLineNo">333</span>            }<a name="line.333"></a>
+<span class="sourceLineNo">334</span>            Configuration ourConf;<a name="line.334"></a>
+<span class="sourceLineNo">335</span>            if (cfgSpec != null &amp;&amp; !cfgSpec.trim().equals("|")) {<a name="line.335"></a>
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+<span class="sourceLineNo">337</span>              // do an explicit deep copy of the passed configuration<a name="line.337"></a>
+<span class="sourceLineNo">338</span>              ourConf = new Configuration(false);<a name="line.338"></a>
+<span class="sourceLineNo">339</span>              HBaseConfiguration.merge(ourConf, conf);<a name="line.339"></a>
+<span class="sourceLineNo">340</span>              Matcher m = HConstants.CP_HTD_ATTR_VALUE_PARAM_PATTERN.matcher(cfgSpec);<a name="line.340"></a>
+<span class="sourceLineNo">341</span>              while (m.find()) {<a name="line.341"></a>
+<span class="sourceLineNo">342</span>                ourConf.set(m.group(1), m.group(2));<a name="line.342"></a>
+<span class="sourceLineNo">343</span>              }<a name="line.343"></a>
+<span class="sourceLineNo">344</span>            } else {<a name="line.344"></a>
+<span class="sourceLineNo">345</span>              ourConf = conf;<a name="line.345"></a>
+<span class="sourceLineNo">346</span>            }<a name="line.346"></a>
+<span class="sourceLineNo">347</span>            result.add(new TableCoprocessorAttribute(path, className, priority, ourConf));<a name="line.347"></a>
+<span class="sourceLineNo">348</span>          } else {<a name="line.348"></a>
+<span class="sourceLineNo">349</span>            LOG.error("Malformed table coprocessor specification: key=" + key +<a name="line.349"></a>
+<span class="sourceLineNo">350</span>              ", spec: " + spec);<a name="line.350"></a>
+<span class="sourceLineNo">351</span>          }<a name="line.351"></a>
+<span class="sourceLineNo">352</span>        } catch (Exception ioe) {<a name="line.352"></a>
+<span class="sourceLineNo">353</span>          LOG.error("Malformed table coprocessor specification: key=" + key +<a name="line.353"></a>
+<span class="sourceLineNo">354</span>            ", spec: " + spec);<a name="line.354"></a>
+<span class="sourceLineNo">355</span>        }<a name="line.355"></a>
+<span class="sourceLineNo">356</span>      }<a name="line.356"></a>
+<span class="sourceLineNo">357</span>    }<a name="line.357"></a>
+<span class="sourceLineNo">358</span>    return result;<a name="line.358"></a>
+<span class="sourceLineNo">359</span>  }<a name="line.359"></a>
+<span class="sourceLineNo">360</span><a name="line.360"></a>
+<span class="sourceLineNo">361</span>  /**<a name="line.361"></a>
+<span class="sourceLineNo">362</span>   * Sanity check the table coprocessor attributes of the supplied schema. Will<a name="line.362"></a>
+<span class="sourceLineNo">363</span>   * throw an exception if there is a problem.<a name="line.363"></a>
+<span class="sourceLineNo">364</span>   * @param conf<a name="line.364"></a>
+<span class="sourceLineNo">365</span>   * @param htd<a name="line.365"></a>
+<span class="sourceLineNo">366</span>   * @throws IOException<a name="line.366"></a>
+<span class="sourceLineNo">367</span>   */<a name="line.367"></a>
+<span class="sourceLineNo">368</span>  public static void testTableCoprocessorAttrs(final Configuration conf,<a name="line.368"></a>
+<span class="sourceLineNo">369</span>      final TableDescriptor htd) throws IOException {<a name="line.369"></a>
+<span class="sourceLineNo">370</span>    String pathPrefix = UUID.randomUUID().toString();<a name="line.370"></a>
+<span class="sourceLineNo">371</span>    for (TableCoprocessorAttribute attr: getTableCoprocessorAttrsFromSchema(conf, htd)) {<a name="line.371"></a>
+<span class="sourceLineNo">372</span>      if (attr.getPriority() &lt; 0) {<a name="line.372"></a>
+<span class="sourceLineNo">373</span>        throw new IOException("Priority for coprocessor " + attr.getClassName() +<a name="line.373"></a>
+<span class="sourceLineNo">374</span>          " cannot be less than 0");<a name="line.374"></a>
+<span class="sourceLineNo">375</span>      }<a name="line.375"></a>
+<span class="sourceLineNo">376</span>      ClassLoader old = Thread.currentThread().getContextClassLoader();<a name="line.376"></a>
+<span class="sourceLineNo">377</span>      try {<a name="line.377"></a>
+<span class="sourceLineNo">378</span>        ClassLoader cl;<a name="line.378"></a>
+<span class="sourceLineNo">379</span>        if (attr.getPath() != null) {<a name="line.379"></a>
+<span class="sourceLineNo">380</span>          cl = CoprocessorClassLoader.getClassLoader(attr.getPath(),<a name="line.380"></a>
+<span class="sourceLineNo">381</span>            CoprocessorHost.class.getClassLoader(), pathPrefix, conf);<a name="line.381"></a>
+<span class="sourceLineNo">382</span>        } else {<a name="line.382"></a>
+<span class="sourceLineNo">383</span>          cl = CoprocessorHost.class.getClassLoader();<a name="line.383"></a>
+<span class="sourceLineNo">384</span>        }<a name="line.384"></a>
+<span class="sourceLineNo">385</span>        Thread.currentThread().setContextClassLoader(cl);<a name="line.385"></a>
+<span class="sourceLineNo">386</span>        cl.loadClass(attr.getClassName());<a name="line.386"></a>
+<span class="sourceLineNo">387</span>      } catch (ClassNotFoundException e) {<a name="line.387"></a>
+<span class="sourceLineNo">388</span>        throw new IOException("Class " + attr.getClassName() + " cannot be loaded", e);<a name="line.388"></a>
+<span class="sourceLineNo">389</span>      } finally {<a name="line.389"></a>
+<span class="sourceLineNo">390</span>        Thread.currentThread().setContextClassLoader(old);<a name="line.390"></a>
+<span class="sourceLineNo">391</span>      }<a name="line.391"></a>
+<span class="sourceLineNo">392</span>    }<a name="line.392"></a>
+<span class="sourceLineNo">393</span>  }<a name="line.393"></a>
+<span class="sourceLineNo">394</span><a name="line.394"></a>
+<span class="sourceLineNo">395</span>  void loadTableCoprocessors(final Configuration conf) {<a name="line.395"></a>
+<span class="sourceLineNo">396</span>    boolean coprocessorsEnabled = conf.getBoolean(COPROCESSORS_ENABLED_CONF_KEY,<a name="line.396"></a>
+<span class="sourceLineNo">397</span>      DEFAULT_COPROCESSORS_ENABLED);<a name="line.397"></a>
+<span class="sourceLineNo">398</span>    boolean tableCoprocessorsEnabled = conf.getBoolean(USER_COPROCESSORS_ENABLED_CONF_KEY,<a name="line.398"></a>
+<span class="sourceLineNo">399</span>      DEFAULT_USER_COPROCESSORS_ENABLED);<a name="line.399"></a>
+<span class="sourceLineNo">400</span>    if (!(coprocessorsEnabled &amp;&amp; tableCoprocessorsEnabled)) {<a name="line.400"></a>
+<span class="sourceLineNo">401</span>      return;<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>    // scan the table attributes for coprocessor load specifications<a name="line.404"></a>
+<span class="sourceLineNo">405</span>    // initialize the coprocessors<a name="line.405"></a>
+<span class="sourceLineNo">406</span>    List&lt;RegionCoprocessorEnvironment&gt; configured = new ArrayList&lt;&gt;();<a name="line.406"></a>
+<span class="sourceLineNo">407</span>    for (TableCoprocessorAttribute attr: getTableCoprocessorAttrsFromSchema(conf,<a name="line.407"></a>
+<span class="sourceLineNo">408</span>        region.getTableDescriptor())) {<a name="line.408"></a>
+<span class="sourceLineNo">409</span>      // Load encompasses classloading and coprocessor initialization<a name="line.409"></a>
+<span class="sourceLineNo">410</span>      try {<a name="line.410"></a>
+<span class="sourceLineNo">411</span>        RegionCoprocessorEnvironment env = load(attr.getPath(), attr.getClassName(),<a name="line.411"></a>
+<span class="sourceLineNo">412</span>            attr.getPriority(), attr.getConf());<a name="line.412"></a>
+<span class="sourceLineNo">413</span>        if (env == null) {<a name="line.413"></a>
+<span class="sourceLineNo">414</span>          continue;<a name="line.414"></a>
+<span class="sourceLineNo">415</span>        }<a name="line.415"></a>
+<span class="sourceLineNo">416</span>        configured.add(env);<a name="line.416"></a>
+<span class="sourceLineNo">417</span>        LOG.info("Loaded coprocessor " + attr.getClassName() + " from HTD of " +<a name="line.417"></a>
+<span class="sourceLineNo">418</span>            region.getTableDescriptor().getTableName().getNameAsString() + " successfully.");<a name="line.418"></a>
+<span class="sourceLineNo">419</span>      } catch (Throwable t) {<a name="line.419"></a>
+<span class="sourceLineNo">420</span>        // Coprocessor failed to load, do we abort on error?<a name="line.420"></a>
+<span class="sourceLineNo">421</span>        if (conf.getBoolean(ABORT_ON_ERROR_KEY, DEFAULT_ABORT_ON_ERROR)) {<a name="line.421"></a>
+<span class="sourceLineNo">422</span>          abortServer(attr.getClassName(), t);<a name="line.422"></a>
+<span class="sourceLineNo">423</span>        } else {<a name="line.423"></a>
+<span class="sourceLineNo">424</span>          LOG.error("Failed to load coprocessor " + attr.getClassName(), t);<a name="line.424"></a>
+<span class="sourceLineNo">425</span>        }<a name="line.425"></a>
+<span class="sourceLineNo">426</span>      }<a name="line.426"></a>
+<span class="sourceLineNo">427</span>    }<a name="line.427"></a>
+<span class="sourceLineNo">428</span>    // add together to coprocessor set for COW efficiency<a name="line.428"></a>
+<span class="sourceLineNo">429</span>    coprocEnvironments.addAll(configured);<a name="line.429"></a>
+<span class="sourceLineNo">430</span>  }<a name="line.430"></a>
+<span class="sourceLineNo">431</span><a name="line.431"></a>
+<span class="sourceLineNo">432</span>  @Override<a name="line.432"></a>
+<span class="sourceLineNo">433</span>  public RegionEnvironment createEnvironment(RegionCoprocessor instance, int priority, int seq,<a name="line.433"></a>
+<span class="sourceLineNo">434</span>      Configuration conf) {<a name="line.434"></a>
+<span class="sourceLineNo">435</span>    // If coprocessor exposes any services, register them.<a name="line.435"></a>
+<span class="sourceLineNo">436</span>    for (Service service : instance.getServices()) {<a name="line.436"></a>
+<span class="sourceLineNo">437</span>      region.registerService(service);<a name="line.437"></a>
+<span class="sourceLineNo">438</span>    }<a name="line.438"></a>
+<span class="sourceLineNo">439</span>    ConcurrentMap&lt;String, Object&gt; classData;<a name="line.439"></a>
+<span class="sourceLineNo">440</span>    // make sure only one thread can add maps<a name="line.440"></a>
+<span class="sourceLineNo">441</span>    synchronized (SHARED_DATA_MAP) {<a name="line.441"></a>
+<span class="sourceLineNo">442</span>      // as long as at least one RegionEnvironment holds on to its classData it will<a name="line.442"></a>
+<span class="sourceLineNo">443</span>      // remain in this map<a name="line.443"></a>
+<span class="sourceLineNo">444</span>      classData =<a name="line.444"></a>
+<span class="sourceLineNo">445</span>          SHARED_DATA_MAP.computeIfAbsent(instance.getClass().getName(),<a name="line.445"></a>
+<span class="sourceLineNo">446</span>              k -&gt; new ConcurrentHashMap&lt;&gt;());<a name="line.446"></a>
+<span class="sourceLineNo">447</span>    }<a name="line.447"></a>
+<span class="sourceLineNo">448</span>    // If a CoreCoprocessor, return a 'richer' environment, one laden with RegionServerServices.<a name="line.448"></a>
+<span class="sourceLineNo">449</span>    return instance.getClass().isAnnotationPresent(CoreCoprocessor.class)?<a name="line.449"></a>
+<span class="sourceLineNo">450</span>        new RegionEnvironmentForCoreCoprocessors(instance, priority, seq, conf, region,<a name="line.450"></a>
+<span class="sourceLineNo">451</span>            rsServices, classData):<a name="line.451"></a>
+<span class="sourceLineNo">452</span>        new RegionEnvironment(instance, priority, seq, conf, region, rsServices, classData);<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>  @Override<a name="line.455"></a>
+<span class="sourceLineNo">456</span>  public RegionCoprocessor checkAndGetInstance(Class&lt;?&gt; implClass)<a name="line.456"></a>
+<span class="sourceLineNo">457</span>      throws InstantiationException, IllegalAccessException {<a name="line.457"></a>
+<span class="sourceLineNo">458</span>    if (RegionCoprocessor.class.isAssignableFrom(implClass)) {<a name="line.458"></a>
+<span class="sourceLineNo">459</span>      return (RegionCoprocessor)implClass.newInstance();<a name="line.459"></a>
+<span class="sourceLineNo">460</span>    } else if (CoprocessorService.class.isAssignableFrom(implClass)) {<a name="line.460"></a>
+<span class="sourceLineNo">461</span>      // For backward compatibility with old CoprocessorService impl which don't extend<a name="line.461"></a>
+<span class="sourceLineNo">462</span>      // RegionCoprocessor.<a name="line.462"></a>
+<span class="sourceLineNo">463</span>      return new CoprocessorServiceBackwardCompatiblity.RegionCoprocessorService(<a name="line.463"></a>
+<span class="sourceLineNo">464</span>          (CoprocessorService)implClass.newInstance());<a name="line.464"></a>
+<span class="sourceLineNo">465</span>    } else {<a name="line.465"></a>
+<span class="sourceLineNo">466</span>      LOG.error(implClass.getName() + " is not of type RegionCoprocessor. Check the "<a name="line.466"></a>
+<span class="sourceLineNo">467</span>          + "configuration " + CoprocessorHost.REGION_COPROCESSOR_CONF_KEY);<a name="line.467"></a>
+<span class="sourceLineNo">468</span>      return null;<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><a name="line.471"></a>
+<span class="sourceLineNo">472</span>  private ObserverGetter&lt;RegionCoprocessor, RegionObserver&gt; regionObserverGetter =<a name="line.472"></a>
+<span class="sourceLineNo">473</span>      RegionCoprocessor::getRegionObserver;<a name="line.473"></a>
+<span class="sourceLineNo">474</span><a name="line.474"></a>
+<span class="sourceLineNo">475</span>  private ObserverGetter&lt;RegionCoprocessor, EndpointObserver&gt; endpointObserverGetter =<a name="line.475"></a>
+<span class="sourceLineNo">476</span>      RegionCoprocessor::getEndpointObserver;<a name="line.476"></a>
+<span class="sourceLineNo">477</span><a name="line.477"></a>
+<span class="sourceLineNo">478</span>  abstract class RegionObserverOperationWithoutResult extends<a name="line.478"></a>
+<span class="sourceLineNo">479</span>      ObserverOperationWithoutResult&lt;RegionObserver&gt; {<a name="line.479"></a>
+<span class="sourceLineNo">480</span>    public RegionObserverOperationWithoutResult() {<a name="line.480"></a>
+<span class="sourceLineNo">481</span>      super(regionObserverGetter);<a name="line.481"></a>
+<span class="sourceLineNo">482</span>    }<a name="line.482"></a>
+<span class="sourceLineNo">483</span><a name="line.483"></a>
+<span class="sourceLineNo">484</span>    public RegionObserverOperationWithoutResult(User user) {<a name="line.484"></a>
+<span class="sourceLineNo">485</span>      super(regionObserverGetter, user);<a name="line.485"></a>
+<span class="sourceLineNo">486</span>    }<a name="line.486"></a>
+<span class="sourceLineNo">487</span><a name="line.487"></a>
+<span class="sourceLineNo">488</span>    public RegionObserverOperationWithoutResult(boolean bypassable) {<a name="line.488"></a>
+<span class="sourceLineNo">489</span>      super(regionObserverGetter, null, bypassable);<a name="line.489"></a>
+<span class="sourceLineNo">490</span>    }<a name="line.490"></a>
+<span class="sourceLineNo">491</span><a name="line.491"></a>
+<span class="sourceLineNo">492</span>    public RegionObserverOperationWithoutResult(User user, boolean bypassable) {<a name="line.492"></a>
+<span class="sourceLineNo">493</span>      super(regionObserverGetter, user, bypassable);<a name="line.493"></a>
+<span class="sourceLineNo">494</span>    }<a name="line.494"></a>
+<span class="sourceLineNo">495</span>  }<a name="line.495"></a>
+<span class="sourceLineNo">496</span><a name="line.496"></a>
+<span class="sourceLineNo">497</span>  abstract class BulkLoadObserverOperation extends<a name="line.497"></a>
+<span class="sourceLineNo">498</span>      ObserverOperationWithoutResult&lt;BulkLoadObserver&gt; {<a name="line.498"></a>
+<span class="sourceLineNo">499</span>    public BulkLoadObserverOperation(User user) {<a name="line.499"></a>
+<span class="sourceLineNo">500</span>      super(RegionCoprocessor::getBulkLoadObserver, user);<a name="line.500"></a>
+<span class="sourceLineNo">501</span>    }<a name="line.501"></a>
+<span class="sourceLineNo">502</span>  }<a name="line.502"></a>
 <span class="sourceLineNo">503</span><a name="line.503"></a>
-<span class="source

<TRUNCATED>

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