You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by gi...@apache.org on 2018/09/28 14:53:48 UTC
[16/51] [partial] hbase-site git commit: Published site at
6bc7089f9e0793efc9bdd46a84f5ccd9bc4579ad.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/419d0338/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureUtil.StateSerializer.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureUtil.StateSerializer.html b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureUtil.StateSerializer.html
index 0d97a1c..297bc43 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureUtil.StateSerializer.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureUtil.StateSerializer.html
@@ -29,331 +29,335 @@
<span class="sourceLineNo">021</span>import java.io.InputStream;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.lang.reflect.Constructor;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.lang.reflect.Modifier;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.HConstants;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.hbase.thirdparty.com.google.protobuf.Any;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hbase.thirdparty.com.google.protobuf.Internal;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hbase.thirdparty.com.google.protobuf.Message;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hbase.thirdparty.com.google.protobuf.Parser;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.LockServiceProtos;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.NonceKey;<a name="line.35"></a>
-<span class="sourceLineNo">036</span><a name="line.36"></a>
-<span class="sourceLineNo">037</span>/**<a name="line.37"></a>
-<span class="sourceLineNo">038</span> * Helper to convert to/from ProcedureProtos<a name="line.38"></a>
-<span class="sourceLineNo">039</span> */<a name="line.39"></a>
-<span class="sourceLineNo">040</span>@InterfaceAudience.Private<a name="line.40"></a>
-<span class="sourceLineNo">041</span>public final class ProcedureUtil {<a name="line.41"></a>
-<span class="sourceLineNo">042</span> private ProcedureUtil() { }<a name="line.42"></a>
-<span class="sourceLineNo">043</span><a name="line.43"></a>
-<span class="sourceLineNo">044</span> // ==========================================================================<a name="line.44"></a>
-<span class="sourceLineNo">045</span> // Reflection helpers to create/validate a Procedure object<a name="line.45"></a>
-<span class="sourceLineNo">046</span> // ==========================================================================<a name="line.46"></a>
-<span class="sourceLineNo">047</span> private static Procedure<?> newProcedure(String className) throws BadProcedureException {<a name="line.47"></a>
-<span class="sourceLineNo">048</span> try {<a name="line.48"></a>
-<span class="sourceLineNo">049</span> Class<?> clazz = Class.forName(className);<a name="line.49"></a>
-<span class="sourceLineNo">050</span> if (!Modifier.isPublic(clazz.getModifiers())) {<a name="line.50"></a>
-<span class="sourceLineNo">051</span> throw new Exception("the " + clazz + " class is not public");<a name="line.51"></a>
-<span class="sourceLineNo">052</span> }<a name="line.52"></a>
-<span class="sourceLineNo">053</span><a name="line.53"></a>
-<span class="sourceLineNo">054</span> @SuppressWarnings("rawtypes")<a name="line.54"></a>
-<span class="sourceLineNo">055</span> Constructor<? extends Procedure> ctor = clazz.asSubclass(Procedure.class).getConstructor();<a name="line.55"></a>
-<span class="sourceLineNo">056</span> assert ctor != null : "no constructor found";<a name="line.56"></a>
-<span class="sourceLineNo">057</span> if (!Modifier.isPublic(ctor.getModifiers())) {<a name="line.57"></a>
-<span class="sourceLineNo">058</span> throw new Exception("the " + clazz + " constructor is not public");<a name="line.58"></a>
-<span class="sourceLineNo">059</span> }<a name="line.59"></a>
-<span class="sourceLineNo">060</span> return ctor.newInstance();<a name="line.60"></a>
-<span class="sourceLineNo">061</span> } catch (Exception e) {<a name="line.61"></a>
-<span class="sourceLineNo">062</span> throw new BadProcedureException(<a name="line.62"></a>
-<span class="sourceLineNo">063</span> "The procedure class " + className + " must be accessible and have an empty constructor",<a name="line.63"></a>
-<span class="sourceLineNo">064</span> e);<a name="line.64"></a>
-<span class="sourceLineNo">065</span> }<a name="line.65"></a>
-<span class="sourceLineNo">066</span> }<a name="line.66"></a>
-<span class="sourceLineNo">067</span><a name="line.67"></a>
-<span class="sourceLineNo">068</span> static void validateClass(Procedure<?> proc) throws BadProcedureException {<a name="line.68"></a>
-<span class="sourceLineNo">069</span> try {<a name="line.69"></a>
-<span class="sourceLineNo">070</span> Class<?> clazz = proc.getClass();<a name="line.70"></a>
-<span class="sourceLineNo">071</span> if (!Modifier.isPublic(clazz.getModifiers())) {<a name="line.71"></a>
-<span class="sourceLineNo">072</span> throw new Exception("the " + clazz + " class is not public");<a name="line.72"></a>
-<span class="sourceLineNo">073</span> }<a name="line.73"></a>
-<span class="sourceLineNo">074</span><a name="line.74"></a>
-<span class="sourceLineNo">075</span> Constructor<?> ctor = clazz.getConstructor();<a name="line.75"></a>
-<span class="sourceLineNo">076</span> assert ctor != null;<a name="line.76"></a>
-<span class="sourceLineNo">077</span> if (!Modifier.isPublic(ctor.getModifiers())) {<a name="line.77"></a>
-<span class="sourceLineNo">078</span> throw new Exception("the " + clazz + " constructor is not public");<a name="line.78"></a>
-<span class="sourceLineNo">079</span> }<a name="line.79"></a>
-<span class="sourceLineNo">080</span> } catch (Exception e) {<a name="line.80"></a>
-<span class="sourceLineNo">081</span> throw new BadProcedureException("The procedure class " + proc.getClass().getName() +<a name="line.81"></a>
-<span class="sourceLineNo">082</span> " must be accessible and have an empty constructor", e);<a name="line.82"></a>
-<span class="sourceLineNo">083</span> }<a name="line.83"></a>
-<span class="sourceLineNo">084</span> }<a name="line.84"></a>
-<span class="sourceLineNo">085</span><a name="line.85"></a>
-<span class="sourceLineNo">086</span> // ==========================================================================<a name="line.86"></a>
-<span class="sourceLineNo">087</span> // convert to and from Procedure object<a name="line.87"></a>
-<span class="sourceLineNo">088</span> // ==========================================================================<a name="line.88"></a>
-<span class="sourceLineNo">089</span><a name="line.89"></a>
-<span class="sourceLineNo">090</span> /**<a name="line.90"></a>
-<span class="sourceLineNo">091</span> * A serializer for our Procedures. Instead of the previous serializer, it<a name="line.91"></a>
-<span class="sourceLineNo">092</span> * uses the stateMessage list to store the internal state of the Procedures.<a name="line.92"></a>
-<span class="sourceLineNo">093</span> */<a name="line.93"></a>
-<span class="sourceLineNo">094</span> private static class StateSerializer implements ProcedureStateSerializer {<a name="line.94"></a>
-<span class="sourceLineNo">095</span> private final ProcedureProtos.Procedure.Builder builder;<a name="line.95"></a>
-<span class="sourceLineNo">096</span> private int deserializeIndex;<a name="line.96"></a>
-<span class="sourceLineNo">097</span><a name="line.97"></a>
-<span class="sourceLineNo">098</span> public StateSerializer(ProcedureProtos.Procedure.Builder builder) {<a name="line.98"></a>
-<span class="sourceLineNo">099</span> this.builder = builder;<a name="line.99"></a>
-<span class="sourceLineNo">100</span> }<a name="line.100"></a>
-<span class="sourceLineNo">101</span><a name="line.101"></a>
-<span class="sourceLineNo">102</span> @Override<a name="line.102"></a>
-<span class="sourceLineNo">103</span> public void serialize(Message message) throws IOException {<a name="line.103"></a>
-<span class="sourceLineNo">104</span> Any packedMessage = Any.pack(message);<a name="line.104"></a>
-<span class="sourceLineNo">105</span> builder.addStateMessage(packedMessage);<a name="line.105"></a>
-<span class="sourceLineNo">106</span> }<a name="line.106"></a>
-<span class="sourceLineNo">107</span><a name="line.107"></a>
-<span class="sourceLineNo">108</span> @Override<a name="line.108"></a>
-<span class="sourceLineNo">109</span> public <M extends Message> M deserialize(Class<M> clazz)<a name="line.109"></a>
-<span class="sourceLineNo">110</span> throws IOException {<a name="line.110"></a>
-<span class="sourceLineNo">111</span> if (deserializeIndex >= builder.getStateMessageCount()) {<a name="line.111"></a>
-<span class="sourceLineNo">112</span> throw new IOException("Invalid state message index: " + deserializeIndex);<a name="line.112"></a>
-<span class="sourceLineNo">113</span> }<a name="line.113"></a>
-<span class="sourceLineNo">114</span><a name="line.114"></a>
-<span class="sourceLineNo">115</span> try {<a name="line.115"></a>
-<span class="sourceLineNo">116</span> Any packedMessage = builder.getStateMessage(deserializeIndex++);<a name="line.116"></a>
-<span class="sourceLineNo">117</span> return packedMessage.unpack(clazz);<a name="line.117"></a>
-<span class="sourceLineNo">118</span> } catch (InvalidProtocolBufferException e) {<a name="line.118"></a>
-<span class="sourceLineNo">119</span> throw e.unwrapIOException();<a name="line.119"></a>
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-<span class="sourceLineNo">121</span> }<a name="line.121"></a>
-<span class="sourceLineNo">122</span> }<a name="line.122"></a>
-<span class="sourceLineNo">123</span><a name="line.123"></a>
-<span class="sourceLineNo">124</span> /**<a name="line.124"></a>
-<span class="sourceLineNo">125</span> * A serializer (deserializer) for those Procedures which were serialized<a name="line.125"></a>
-<span class="sourceLineNo">126</span> * before this patch. It deserializes the old, binary stateData field.<a name="line.126"></a>
-<span class="sourceLineNo">127</span> */<a name="line.127"></a>
-<span class="sourceLineNo">128</span> private static class CompatStateSerializer implements ProcedureStateSerializer {<a name="line.128"></a>
-<span class="sourceLineNo">129</span> private InputStream inputStream;<a name="line.129"></a>
-<span class="sourceLineNo">130</span><a name="line.130"></a>
-<span class="sourceLineNo">131</span> public CompatStateSerializer(InputStream inputStream) {<a name="line.131"></a>
-<span class="sourceLineNo">132</span> this.inputStream = inputStream;<a name="line.132"></a>
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-<span class="sourceLineNo">135</span> @Override<a name="line.135"></a>
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-<span class="sourceLineNo">137</span> throw new UnsupportedOperationException();<a name="line.137"></a>
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-<span class="sourceLineNo">139</span><a name="line.139"></a>
-<span class="sourceLineNo">140</span> @SuppressWarnings("unchecked")<a name="line.140"></a>
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-<span class="sourceLineNo">142</span> public <M extends Message> M deserialize(Class<M> clazz)<a name="line.142"></a>
-<span class="sourceLineNo">143</span> throws IOException {<a name="line.143"></a>
-<span class="sourceLineNo">144</span> Parser<M> parser = (Parser<M>) Internal.getDefaultInstance(clazz).getParserForType();<a name="line.144"></a>
-<span class="sourceLineNo">145</span> try {<a name="line.145"></a>
-<span class="sourceLineNo">146</span> return parser.parseDelimitedFrom(inputStream);<a name="line.146"></a>
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-<span class="sourceLineNo">148</span> throw e.unwrapIOException();<a name="line.148"></a>
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-<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><a name="line.152"></a>
-<span class="sourceLineNo">153</span> /**<a name="line.153"></a>
-<span class="sourceLineNo">154</span> * Helper to convert the procedure to protobuf.<a name="line.154"></a>
-<span class="sourceLineNo">155</span> * <p/><a name="line.155"></a>
-<span class="sourceLineNo">156</span> * Used by ProcedureStore implementations.<a name="line.156"></a>
-<span class="sourceLineNo">157</span> */<a name="line.157"></a>
-<span class="sourceLineNo">158</span> public static ProcedureProtos.Procedure convertToProtoProcedure(Procedure<?> proc)<a name="line.158"></a>
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-<span class="sourceLineNo">160</span> Preconditions.checkArgument(proc != null);<a name="line.160"></a>
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-<span class="sourceLineNo">162</span><a name="line.162"></a>
-<span class="sourceLineNo">163</span> final ProcedureProtos.Procedure.Builder builder = ProcedureProtos.Procedure.newBuilder()<a name="line.163"></a>
-<span class="sourceLineNo">164</span> .setClassName(proc.getClass().getName())<a name="line.164"></a>
-<span class="sourceLineNo">165</span> .setProcId(proc.getProcId())<a name="line.165"></a>
-<span class="sourceLineNo">166</span> .setState(proc.getState())<a name="line.166"></a>
-<span class="sourceLineNo">167</span> .setSubmittedTime(proc.getSubmittedTime())<a name="line.167"></a>
-<span class="sourceLineNo">168</span> .setLastUpdate(proc.getLastUpdate());<a name="line.168"></a>
-<span class="sourceLineNo">169</span><a name="line.169"></a>
-<span class="sourceLineNo">170</span> if (proc.hasParent()) {<a name="line.170"></a>
-<span class="sourceLineNo">171</span> builder.setParentId(proc.getParentProcId());<a name="line.171"></a>
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-<span class="sourceLineNo">173</span><a name="line.173"></a>
-<span class="sourceLineNo">174</span> if (proc.hasTimeout()) {<a name="line.174"></a>
-<span class="sourceLineNo">175</span> builder.setTimeout(proc.getTimeout());<a name="line.175"></a>
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-<span class="sourceLineNo">177</span><a name="line.177"></a>
-<span class="sourceLineNo">178</span> if (proc.hasOwner()) {<a name="line.178"></a>
-<span class="sourceLineNo">179</span> builder.setOwner(proc.getOwner());<a name="line.179"></a>
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-<span class="sourceLineNo">181</span><a name="line.181"></a>
-<span class="sourceLineNo">182</span> final int[] stackIds = proc.getStackIndexes();<a name="line.182"></a>
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-<span class="sourceLineNo">184</span> for (int i = 0; i < stackIds.length; ++i) {<a name="line.184"></a>
-<span class="sourceLineNo">185</span> builder.addStackId(stackIds[i]);<a name="line.185"></a>
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-<span class="sourceLineNo">188</span><a name="line.188"></a>
-<span class="sourceLineNo">189</span> if (proc.hasException()) {<a name="line.189"></a>
-<span class="sourceLineNo">190</span> RemoteProcedureException exception = proc.getException();<a name="line.190"></a>
-<span class="sourceLineNo">191</span> builder.setException(<a name="line.191"></a>
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-<span class="sourceLineNo">199</span><a name="line.199"></a>
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-<span class="sourceLineNo">204</span> builder.setNonceGroup(proc.getNonceKey().getNonceGroup());<a name="line.204"></a>
-<span class="sourceLineNo">205</span> builder.setNonce(proc.getNonceKey().getNonce());<a name="line.205"></a>
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-<span class="sourceLineNo">209</span> builder.setLocked(true);<a name="line.209"></a>
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-<span class="sourceLineNo">211</span><a name="line.211"></a>
-<span class="sourceLineNo">212</span> if (proc.isBypass()) {<a name="line.212"></a>
-<span class="sourceLineNo">213</span> builder.setBypass(true);<a name="line.213"></a>
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-<span class="sourceLineNo">215</span> return builder.build();<a name="line.215"></a>
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-<span class="sourceLineNo">217</span><a name="line.217"></a>
-<span class="sourceLineNo">218</span> /**<a name="line.218"></a>
-<span class="sourceLineNo">219</span> * Helper to convert the protobuf procedure.<a name="line.219"></a>
-<span class="sourceLineNo">220</span> * <p/><a name="line.220"></a>
-<span class="sourceLineNo">221</span> * Used by ProcedureStore implementations.<a name="line.221"></a>
-<span class="sourceLineNo">222</span> * <p/><a name="line.222"></a>
-<span class="sourceLineNo">223</span> * TODO: OPTIMIZATION: some of the field never change during the execution (e.g. className,<a name="line.223"></a>
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-<span class="sourceLineNo">225</span> * it by storing the data only on insert().<a name="line.225"></a>
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-<span class="sourceLineNo">227</span> public static Procedure<?> convertToProcedure(ProcedureProtos.Procedure proto)<a name="line.227"></a>
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-<span class="sourceLineNo">230</span> Procedure<?> proc = newProcedure(proto.getClassName());<a name="line.230"></a>
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-<span class="sourceLineNo">232</span> // set fields<a name="line.232"></a>
-<span class="sourceLineNo">233</span> proc.setProcId(proto.getProcId());<a name="line.233"></a>
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-<span class="sourceLineNo">245</span><a name="line.245"></a>
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-<span class="sourceLineNo">249</span><a name="line.249"></a>
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-<span class="sourceLineNo">254</span> if (proto.hasException()) {<a name="line.254"></a>
-<span class="sourceLineNo">255</span> assert proc.getState() == ProcedureProtos.ProcedureState.FAILED ||<a name="line.255"></a>
-<span class="sourceLineNo">256</span> proc.getState() == ProcedureProtos.ProcedureState.ROLLEDBACK :<a name="line.256"></a>
-<span class="sourceLineNo">257</span> "The procedure must be failed (waiting to rollback) or rolledback";<a name="line.257"></a>
-<span class="sourceLineNo">258</span> proc.setFailure(RemoteProcedureException.fromProto(proto.getException()));<a name="line.258"></a>
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-<span class="sourceLineNo">260</span><a name="line.260"></a>
-<span class="sourceLineNo">261</span> if (proto.hasResult()) {<a name="line.261"></a>
-<span class="sourceLineNo">262</span> proc.setResult(proto.getResult().toByteArray());<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> if (proto.getNonce() != HConstants.NO_NONCE) {<a name="line.265"></a>
-<span class="sourceLineNo">266</span> proc.setNonceKey(new NonceKey(proto.getNonceGroup(), proto.getNonce()));<a name="line.266"></a>
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-<span class="sourceLineNo">268</span><a name="line.268"></a>
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-<span class="sourceLineNo">270</span> proc.lockedWhenLoading();<a name="line.270"></a>
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-<span class="sourceLineNo">272</span><a name="line.272"></a>
-<span class="sourceLineNo">273</span> if (proto.getBypass()) {<a name="line.273"></a>
-<span class="sourceLineNo">274</span> proc.bypass();<a name="line.274"></a>
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-<span class="sourceLineNo">276</span><a name="line.276"></a>
-<span class="sourceLineNo">277</span> ProcedureStateSerializer serializer = null;<a name="line.277"></a>
-<span class="sourceLineNo">278</span><a name="line.278"></a>
-<span class="sourceLineNo">279</span> if (proto.getStateMessageCount() > 0) {<a name="line.279"></a>
-<span class="sourceLineNo">280</span> serializer = new StateSerializer(proto.toBuilder());<a name="line.280"></a>
-<span class="sourceLineNo">281</span> } else if (proto.hasStateData()) {<a name="line.281"></a>
-<span class="sourceLineNo">282</span> InputStream inputStream = proto.getStateData().newInput();<a name="line.282"></a>
-<span class="sourceLineNo">283</span> serializer = new CompatStateSerializer(inputStream);<a name="line.283"></a>
-<span class="sourceLineNo">284</span> }<a name="line.284"></a>
-<span class="sourceLineNo">285</span><a name="line.285"></a>
-<span class="sourceLineNo">286</span> if (serializer != null) {<a name="line.286"></a>
-<span class="sourceLineNo">287</span> proc.deserializeStateData(serializer);<a name="line.287"></a>
-<span class="sourceLineNo">288</span> }<a name="line.288"></a>
-<span class="sourceLineNo">289</span><a name="line.289"></a>
-<span class="sourceLineNo">290</span> return proc;<a name="line.290"></a>
-<span class="sourceLineNo">291</span> }<a name="line.291"></a>
-<span class="sourceLineNo">292</span><a name="line.292"></a>
-<span class="sourceLineNo">293</span> // ==========================================================================<a name="line.293"></a>
-<span class="sourceLineNo">294</span> // convert from LockedResource object<a name="line.294"></a>
-<span class="sourceLineNo">295</span> // ==========================================================================<a name="line.295"></a>
-<span class="sourceLineNo">296</span><a name="line.296"></a>
-<span class="sourceLineNo">297</span> public static LockServiceProtos.LockedResourceType convertToProtoResourceType(<a name="line.297"></a>
-<span class="sourceLineNo">298</span> LockedResourceType resourceType) {<a name="line.298"></a>
-<span class="sourceLineNo">299</span> return LockServiceProtos.LockedResourceType.valueOf(resourceType.name());<a name="line.299"></a>
-<span class="sourceLineNo">300</span> }<a name="line.300"></a>
-<span class="sourceLineNo">301</span><a name="line.301"></a>
-<span class="sourceLineNo">302</span> public static LockServiceProtos.LockType convertToProtoLockType(LockType lockType) {<a name="line.302"></a>
-<span class="sourceLineNo">303</span> return LockServiceProtos.LockType.valueOf(lockType.name());<a name="line.303"></a>
-<span class="sourceLineNo">304</span> }<a name="line.304"></a>
-<span class="sourceLineNo">305</span><a name="line.305"></a>
-<span class="sourceLineNo">306</span> public static LockServiceProtos.LockedResource convertToProtoLockedResource(<a name="line.306"></a>
-<span class="sourceLineNo">307</span> LockedResource lockedResource) throws IOException {<a name="line.307"></a>
-<span class="sourceLineNo">308</span> LockServiceProtos.LockedResource.Builder builder =<a name="line.308"></a>
-<span class="sourceLineNo">309</span> LockServiceProtos.LockedResource.newBuilder();<a name="line.309"></a>
-<span class="sourceLineNo">310</span><a name="line.310"></a>
-<span class="sourceLineNo">311</span> builder<a name="line.311"></a>
-<span class="sourceLineNo">312</span> .setResourceType(convertToProtoResourceType(lockedResource.getResourceType()))<a name="line.312"></a>
-<span class="sourceLineNo">313</span> .setResourceName(lockedResource.getResourceName())<a name="line.313"></a>
-<span class="sourceLineNo">314</span> .setLockType(convertToProtoLockType(lockedResource.getLockType()));<a name="line.314"></a>
-<span class="sourceLineNo">315</span><a name="line.315"></a>
-<span class="sourceLineNo">316</span> Procedure<?> exclusiveLockOwnerProcedure = lockedResource.getExclusiveLockOwnerProcedure();<a name="line.316"></a>
-<span class="sourceLineNo">317</span><a name="line.317"></a>
-<span class="sourceLineNo">318</span> if (exclusiveLockOwnerProcedure != null) {<a name="line.318"></a>
-<span class="sourceLineNo">319</span> ProcedureProtos.Procedure exclusiveLockOwnerProcedureProto =<a name="line.319"></a>
-<span class="sourceLineNo">320</span> convertToProtoProcedure(exclusiveLockOwnerProcedure);<a name="line.320"></a>
-<span class="sourceLineNo">321</span> builder.setExclusiveLockOwnerProcedure(exclusiveLockOwnerProcedureProto);<a name="line.321"></a>
-<span class="sourceLineNo">322</span> }<a name="line.322"></a>
-<span class="sourceLineNo">323</span><a name="line.323"></a>
-<span class="sourceLineNo">324</span> builder.setSharedLockCount(lockedResource.getSharedLockCount());<a name="line.324"></a>
-<span class="sourceLineNo">325</span><a name="line.325"></a>
-<span class="sourceLineNo">326</span> for (Procedure<?> waitingProcedure : lockedResource.getWaitingProcedures()) {<a name="line.326"></a>
-<span class="sourceLineNo">327</span> ProcedureProtos.Procedure waitingProcedureProto =<a name="line.327"></a>
-<span class="sourceLineNo">328</span> convertToProtoProcedure(waitingProcedure);<a name="line.328"></a>
-<span class="sourceLineNo">329</span> builder.addWaitingProcedures(waitingProcedureProto);<a name="line.329"></a>
-<span class="sourceLineNo">330</span> }<a name="line.330"></a>
-<span class="sourceLineNo">331</span><a name="line.331"></a>
-<span class="sourceLineNo">332</span> return builder.build();<a name="line.332"></a>
-<span class="sourceLineNo">333</span> }<a name="line.333"></a>
-<span class="sourceLineNo">334</span><a name="line.334"></a>
-<span class="sourceLineNo">335</span> /**<a name="line.335"></a>
-<span class="sourceLineNo">336</span> * Get an exponential backoff time, in milliseconds. The base unit is 1 second, and the max<a name="line.336"></a>
-<span class="sourceLineNo">337</span> * backoff time is 10 minutes. This is the general backoff policy for most procedure<a name="line.337"></a>
-<span class="sourceLineNo">338</span> * implementation.<a name="line.338"></a>
-<span class="sourceLineNo">339</span> */<a name="line.339"></a>
-<span class="sourceLineNo">340</span> public static long getBackoffTimeMs(int attempts) {<a name="line.340"></a>
-<span class="sourceLineNo">341</span> long maxBackoffTime = 10L * 60 * 1000; // Ten minutes, hard coded for now.<a name="line.341"></a>
-<span class="sourceLineNo">342</span> // avoid overflow<a name="line.342"></a>
-<span class="sourceLineNo">343</span> if (attempts >= 30) {<a name="line.343"></a>
-<span class="sourceLineNo">344</span> return maxBackoffTime;<a name="line.344"></a>
-<span class="sourceLineNo">345</span> }<a name="line.345"></a>
-<span class="sourceLineNo">346</span> return Math.min((long) (1000 * Math.pow(2, attempts)), maxBackoffTime);<a name="line.346"></a>
-<span class="sourceLineNo">347</span> }<a name="line.347"></a>
-<span class="sourceLineNo">348</span>}<a name="line.348"></a>
+<span class="sourceLineNo">024</span>import java.util.concurrent.ThreadLocalRandom;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HConstants;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hbase.thirdparty.com.google.protobuf.Any;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hbase.thirdparty.com.google.protobuf.Internal;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hbase.thirdparty.com.google.protobuf.Message;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hbase.thirdparty.com.google.protobuf.Parser;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.LockServiceProtos;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.NonceKey;<a name="line.36"></a>
+<span class="sourceLineNo">037</span><a name="line.37"></a>
+<span class="sourceLineNo">038</span>/**<a name="line.38"></a>
+<span class="sourceLineNo">039</span> * Helper to convert to/from ProcedureProtos<a name="line.39"></a>
+<span class="sourceLineNo">040</span> */<a name="line.40"></a>
+<span class="sourceLineNo">041</span>@InterfaceAudience.Private<a name="line.41"></a>
+<span class="sourceLineNo">042</span>public final class ProcedureUtil {<a name="line.42"></a>
+<span class="sourceLineNo">043</span> private ProcedureUtil() { }<a name="line.43"></a>
+<span class="sourceLineNo">044</span><a name="line.44"></a>
+<span class="sourceLineNo">045</span> // ==========================================================================<a name="line.45"></a>
+<span class="sourceLineNo">046</span> // Reflection helpers to create/validate a Procedure object<a name="line.46"></a>
+<span class="sourceLineNo">047</span> // ==========================================================================<a name="line.47"></a>
+<span class="sourceLineNo">048</span> private static Procedure<?> newProcedure(String className) throws BadProcedureException {<a name="line.48"></a>
+<span class="sourceLineNo">049</span> try {<a name="line.49"></a>
+<span class="sourceLineNo">050</span> Class<?> clazz = Class.forName(className);<a name="line.50"></a>
+<span class="sourceLineNo">051</span> if (!Modifier.isPublic(clazz.getModifiers())) {<a name="line.51"></a>
+<span class="sourceLineNo">052</span> throw new Exception("the " + clazz + " class is not public");<a name="line.52"></a>
+<span class="sourceLineNo">053</span> }<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span> @SuppressWarnings("rawtypes")<a name="line.55"></a>
+<span class="sourceLineNo">056</span> Constructor<? extends Procedure> ctor = clazz.asSubclass(Procedure.class).getConstructor();<a name="line.56"></a>
+<span class="sourceLineNo">057</span> assert ctor != null : "no constructor found";<a name="line.57"></a>
+<span class="sourceLineNo">058</span> if (!Modifier.isPublic(ctor.getModifiers())) {<a name="line.58"></a>
+<span class="sourceLineNo">059</span> throw new Exception("the " + clazz + " constructor is not public");<a name="line.59"></a>
+<span class="sourceLineNo">060</span> }<a name="line.60"></a>
+<span class="sourceLineNo">061</span> return ctor.newInstance();<a name="line.61"></a>
+<span class="sourceLineNo">062</span> } catch (Exception e) {<a name="line.62"></a>
+<span class="sourceLineNo">063</span> throw new BadProcedureException(<a name="line.63"></a>
+<span class="sourceLineNo">064</span> "The procedure class " + className + " must be accessible and have an empty constructor",<a name="line.64"></a>
+<span class="sourceLineNo">065</span> e);<a name="line.65"></a>
+<span class="sourceLineNo">066</span> }<a name="line.66"></a>
+<span class="sourceLineNo">067</span> }<a name="line.67"></a>
+<span class="sourceLineNo">068</span><a name="line.68"></a>
+<span class="sourceLineNo">069</span> static void validateClass(Procedure<?> proc) throws BadProcedureException {<a name="line.69"></a>
+<span class="sourceLineNo">070</span> try {<a name="line.70"></a>
+<span class="sourceLineNo">071</span> Class<?> clazz = proc.getClass();<a name="line.71"></a>
+<span class="sourceLineNo">072</span> if (!Modifier.isPublic(clazz.getModifiers())) {<a name="line.72"></a>
+<span class="sourceLineNo">073</span> throw new Exception("the " + clazz + " class is not public");<a name="line.73"></a>
+<span class="sourceLineNo">074</span> }<a name="line.74"></a>
+<span class="sourceLineNo">075</span><a name="line.75"></a>
+<span class="sourceLineNo">076</span> Constructor<?> ctor = clazz.getConstructor();<a name="line.76"></a>
+<span class="sourceLineNo">077</span> assert ctor != null;<a name="line.77"></a>
+<span class="sourceLineNo">078</span> if (!Modifier.isPublic(ctor.getModifiers())) {<a name="line.78"></a>
+<span class="sourceLineNo">079</span> throw new Exception("the " + clazz + " constructor is not public");<a name="line.79"></a>
+<span class="sourceLineNo">080</span> }<a name="line.80"></a>
+<span class="sourceLineNo">081</span> } catch (Exception e) {<a name="line.81"></a>
+<span class="sourceLineNo">082</span> throw new BadProcedureException("The procedure class " + proc.getClass().getName() +<a name="line.82"></a>
+<span class="sourceLineNo">083</span> " must be accessible and have an empty constructor", e);<a name="line.83"></a>
+<span class="sourceLineNo">084</span> }<a name="line.84"></a>
+<span class="sourceLineNo">085</span> }<a name="line.85"></a>
+<span class="sourceLineNo">086</span><a name="line.86"></a>
+<span class="sourceLineNo">087</span> // ==========================================================================<a name="line.87"></a>
+<span class="sourceLineNo">088</span> // convert to and from Procedure object<a name="line.88"></a>
+<span class="sourceLineNo">089</span> // ==========================================================================<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>
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+<span class="sourceLineNo">094</span> */<a name="line.94"></a>
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+<span class="sourceLineNo">096</span> private final ProcedureProtos.Procedure.Builder builder;<a name="line.96"></a>
+<span class="sourceLineNo">097</span> private int deserializeIndex;<a name="line.97"></a>
+<span class="sourceLineNo">098</span><a name="line.98"></a>
+<span class="sourceLineNo">099</span> public StateSerializer(ProcedureProtos.Procedure.Builder builder) {<a name="line.99"></a>
+<span class="sourceLineNo">100</span> this.builder = builder;<a name="line.100"></a>
+<span class="sourceLineNo">101</span> }<a name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
+<span class="sourceLineNo">103</span> @Override<a name="line.103"></a>
+<span class="sourceLineNo">104</span> public void serialize(Message message) throws IOException {<a name="line.104"></a>
+<span class="sourceLineNo">105</span> Any packedMessage = Any.pack(message);<a name="line.105"></a>
+<span class="sourceLineNo">106</span> builder.addStateMessage(packedMessage);<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> @Override<a name="line.109"></a>
+<span class="sourceLineNo">110</span> public <M extends Message> M deserialize(Class<M> clazz)<a name="line.110"></a>
+<span class="sourceLineNo">111</span> throws IOException {<a name="line.111"></a>
+<span class="sourceLineNo">112</span> if (deserializeIndex >= builder.getStateMessageCount()) {<a name="line.112"></a>
+<span class="sourceLineNo">113</span> throw new IOException("Invalid state message index: " + deserializeIndex);<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> try {<a name="line.116"></a>
+<span class="sourceLineNo">117</span> Any packedMessage = builder.getStateMessage(deserializeIndex++);<a name="line.117"></a>
+<span class="sourceLineNo">118</span> return packedMessage.unpack(clazz);<a name="line.118"></a>
+<span class="sourceLineNo">119</span> } catch (InvalidProtocolBufferException e) {<a name="line.119"></a>
+<span class="sourceLineNo">120</span> throw e.unwrapIOException();<a name="line.120"></a>
+<span class="sourceLineNo">121</span> }<a name="line.121"></a>
+<span class="sourceLineNo">122</span> }<a name="line.122"></a>
+<span class="sourceLineNo">123</span> }<a name="line.123"></a>
+<span class="sourceLineNo">124</span><a name="line.124"></a>
+<span class="sourceLineNo">125</span> /**<a name="line.125"></a>
+<span class="sourceLineNo">126</span> * A serializer (deserializer) for those Procedures which were serialized<a name="line.126"></a>
+<span class="sourceLineNo">127</span> * before this patch. It deserializes the old, binary stateData field.<a name="line.127"></a>
+<span class="sourceLineNo">128</span> */<a name="line.128"></a>
+<span class="sourceLineNo">129</span> private static class CompatStateSerializer implements ProcedureStateSerializer {<a name="line.129"></a>
+<span class="sourceLineNo">130</span> private InputStream inputStream;<a name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span> public CompatStateSerializer(InputStream inputStream) {<a name="line.132"></a>
+<span class="sourceLineNo">133</span> this.inputStream = inputStream;<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> @Override<a name="line.136"></a>
+<span class="sourceLineNo">137</span> public void serialize(Message message) throws IOException {<a name="line.137"></a>
+<span class="sourceLineNo">138</span> throw new UnsupportedOperationException();<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> @SuppressWarnings("unchecked")<a name="line.141"></a>
+<span class="sourceLineNo">142</span> @Override<a name="line.142"></a>
+<span class="sourceLineNo">143</span> public <M extends Message> M deserialize(Class<M> clazz)<a name="line.143"></a>
+<span class="sourceLineNo">144</span> throws IOException {<a name="line.144"></a>
+<span class="sourceLineNo">145</span> Parser<M> parser = (Parser<M>) Internal.getDefaultInstance(clazz).getParserForType();<a name="line.145"></a>
+<span class="sourceLineNo">146</span> try {<a name="line.146"></a>
+<span class="sourceLineNo">147</span> return parser.parseDelimitedFrom(inputStream);<a name="line.147"></a>
+<span class="sourceLineNo">148</span> } catch (InvalidProtocolBufferException e) {<a name="line.148"></a>
+<span class="sourceLineNo">149</span> throw e.unwrapIOException();<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> }<a name="line.152"></a>
+<span class="sourceLineNo">153</span><a name="line.153"></a>
+<span class="sourceLineNo">154</span> /**<a name="line.154"></a>
+<span class="sourceLineNo">155</span> * Helper to convert the procedure to protobuf.<a name="line.155"></a>
+<span class="sourceLineNo">156</span> * <p/><a name="line.156"></a>
+<span class="sourceLineNo">157</span> * Used by ProcedureStore implementations.<a name="line.157"></a>
+<span class="sourceLineNo">158</span> */<a name="line.158"></a>
+<span class="sourceLineNo">159</span> public static ProcedureProtos.Procedure convertToProtoProcedure(Procedure<?> proc)<a name="line.159"></a>
+<span class="sourceLineNo">160</span> throws IOException {<a name="line.160"></a>
+<span class="sourceLineNo">161</span> Preconditions.checkArgument(proc != null);<a name="line.161"></a>
+<span class="sourceLineNo">162</span> validateClass(proc);<a name="line.162"></a>
+<span class="sourceLineNo">163</span><a name="line.163"></a>
+<span class="sourceLineNo">164</span> final ProcedureProtos.Procedure.Builder builder = ProcedureProtos.Procedure.newBuilder()<a name="line.164"></a>
+<span class="sourceLineNo">165</span> .setClassName(proc.getClass().getName())<a name="line.165"></a>
+<span class="sourceLineNo">166</span> .setProcId(proc.getProcId())<a name="line.166"></a>
+<span class="sourceLineNo">167</span> .setState(proc.getState())<a name="line.167"></a>
+<span class="sourceLineNo">168</span> .setSubmittedTime(proc.getSubmittedTime())<a name="line.168"></a>
+<span class="sourceLineNo">169</span> .setLastUpdate(proc.getLastUpdate());<a name="line.169"></a>
+<span class="sourceLineNo">170</span><a name="line.170"></a>
+<span class="sourceLineNo">171</span> if (proc.hasParent()) {<a name="line.171"></a>
+<span class="sourceLineNo">172</span> builder.setParentId(proc.getParentProcId());<a name="line.172"></a>
+<span class="sourceLineNo">173</span> }<a name="line.173"></a>
+<span class="sourceLineNo">174</span><a name="line.174"></a>
+<span class="sourceLineNo">175</span> if (proc.hasTimeout()) {<a name="line.175"></a>
+<span class="sourceLineNo">176</span> builder.setTimeout(proc.getTimeout());<a name="line.176"></a>
+<span class="sourceLineNo">177</span> }<a name="line.177"></a>
+<span class="sourceLineNo">178</span><a name="line.178"></a>
+<span class="sourceLineNo">179</span> if (proc.hasOwner()) {<a name="line.179"></a>
+<span class="sourceLineNo">180</span> builder.setOwner(proc.getOwner());<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> final int[] stackIds = proc.getStackIndexes();<a name="line.183"></a>
+<span class="sourceLineNo">184</span> if (stackIds != null) {<a name="line.184"></a>
+<span class="sourceLineNo">185</span> for (int i = 0; i < stackIds.length; ++i) {<a name="line.185"></a>
+<span class="sourceLineNo">186</span> builder.addStackId(stackIds[i]);<a name="line.186"></a>
+<span class="sourceLineNo">187</span> }<a name="line.187"></a>
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+<span class="sourceLineNo">221</span> * <p/><a name="line.221"></a>
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+<span class="sourceLineNo">294</span> // ==========================================================================<a name="line.294"></a>
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+<span class="sourceLineNo">339</span> * implementation.<a name="line.339"></a>
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+<span class="sourceLineNo">348</span> // 1% possible jitter<a name="line.348"></a>
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