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From git-site-r...@apache.org
Subject [38/51] [partial] hbase-site git commit: Published site at 821e4d7de2d576189f4288d1c2acf9e9a9471f5c.
Date Tue, 16 Oct 2018 14:54:59 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/323b17d9/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.ProcedureExecutorListener.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.ProcedureExecutorListener.html b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.ProcedureExecutorListener.html
index bdfc3f8..151ab8e 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.ProcedureExecutorListener.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.ProcedureExecutorListener.html
@@ -1062,1140 +1062,1159 @@
 <span class="sourceLineNo">1054</span>  }<a name="line.1054"></a>
 <span class="sourceLineNo">1055</span><a name="line.1055"></a>
 <span class="sourceLineNo">1056</span>  boolean bypassProcedure(long pid, long lockWait, boolean force) throws IOException {<a name="line.1056"></a>
-<span class="sourceLineNo">1057</span>    Procedure&lt;TEnvironment&gt; procedure = getProcedure(pid);<a name="line.1057"></a>
-<span class="sourceLineNo">1058</span>    if (procedure == null) {<a name="line.1058"></a>
-<span class="sourceLineNo">1059</span>      LOG.debug("Procedure with id={} does not exist, skipping bypass", pid);<a name="line.1059"></a>
-<span class="sourceLineNo">1060</span>      return false;<a name="line.1060"></a>
-<span class="sourceLineNo">1061</span>    }<a name="line.1061"></a>
-<span class="sourceLineNo">1062</span><a name="line.1062"></a>
-<span class="sourceLineNo">1063</span>    LOG.debug("Begin bypass {} with lockWait={}, force={}", procedure, lockWait, force);<a name="line.1063"></a>
-<span class="sourceLineNo">1064</span>    IdLock.Entry lockEntry = procExecutionLock.tryLockEntry(procedure.getProcId(), lockWait);<a name="line.1064"></a>
-<span class="sourceLineNo">1065</span>    if (lockEntry == null &amp;&amp; !force) {<a name="line.1065"></a>
-<span class="sourceLineNo">1066</span>      LOG.debug("Waited {} ms, but {} is still running, skipping bypass with force={}",<a name="line.1066"></a>
-<span class="sourceLineNo">1067</span>          lockWait, procedure, force);<a name="line.1067"></a>
-<span class="sourceLineNo">1068</span>      return false;<a name="line.1068"></a>
-<span class="sourceLineNo">1069</span>    } else if (lockEntry == null) {<a name="line.1069"></a>
-<span class="sourceLineNo">1070</span>      LOG.debug("Waited {} ms, but {} is still running, begin bypass with force={}",<a name="line.1070"></a>
-<span class="sourceLineNo">1071</span>          lockWait, procedure, force);<a name="line.1071"></a>
-<span class="sourceLineNo">1072</span>    }<a name="line.1072"></a>
-<span class="sourceLineNo">1073</span>    try {<a name="line.1073"></a>
-<span class="sourceLineNo">1074</span>      // check whether the procedure is already finished<a name="line.1074"></a>
-<span class="sourceLineNo">1075</span>      if (procedure.isFinished()) {<a name="line.1075"></a>
-<span class="sourceLineNo">1076</span>        LOG.debug("{} is already finished, skipping bypass", procedure);<a name="line.1076"></a>
-<span class="sourceLineNo">1077</span>        return false;<a name="line.1077"></a>
-<span class="sourceLineNo">1078</span>      }<a name="line.1078"></a>
-<span class="sourceLineNo">1079</span><a name="line.1079"></a>
-<span class="sourceLineNo">1080</span>      if (procedure.hasChildren()) {<a name="line.1080"></a>
-<span class="sourceLineNo">1081</span>        LOG.debug("{} has children, skipping bypass", procedure);<a name="line.1081"></a>
-<span class="sourceLineNo">1082</span>        return false;<a name="line.1082"></a>
-<span class="sourceLineNo">1083</span>      }<a name="line.1083"></a>
-<span class="sourceLineNo">1084</span><a name="line.1084"></a>
-<span class="sourceLineNo">1085</span>      // If the procedure has no parent or no child, we are safe to bypass it in whatever state<a name="line.1085"></a>
-<span class="sourceLineNo">1086</span>      if (procedure.hasParent() &amp;&amp; procedure.getState() != ProcedureState.RUNNABLE<a name="line.1086"></a>
-<span class="sourceLineNo">1087</span>          &amp;&amp; procedure.getState() != ProcedureState.WAITING<a name="line.1087"></a>
-<span class="sourceLineNo">1088</span>          &amp;&amp; procedure.getState() != ProcedureState.WAITING_TIMEOUT) {<a name="line.1088"></a>
-<span class="sourceLineNo">1089</span>        LOG.debug("Bypassing procedures in RUNNABLE, WAITING and WAITING_TIMEOUT states "<a name="line.1089"></a>
-<span class="sourceLineNo">1090</span>                + "(with no parent), {}",<a name="line.1090"></a>
-<span class="sourceLineNo">1091</span>            procedure);<a name="line.1091"></a>
-<span class="sourceLineNo">1092</span>        return false;<a name="line.1092"></a>
-<span class="sourceLineNo">1093</span>      }<a name="line.1093"></a>
-<span class="sourceLineNo">1094</span><a name="line.1094"></a>
-<span class="sourceLineNo">1095</span>      // Now, the procedure is not finished, and no one can execute it since we take the lock now<a name="line.1095"></a>
-<span class="sourceLineNo">1096</span>      // And we can be sure that its ancestor is not running too, since their child has not<a name="line.1096"></a>
-<span class="sourceLineNo">1097</span>      // finished yet<a name="line.1097"></a>
-<span class="sourceLineNo">1098</span>      Procedure&lt;TEnvironment&gt; current = procedure;<a name="line.1098"></a>
-<span class="sourceLineNo">1099</span>      while (current != null) {<a name="line.1099"></a>
-<span class="sourceLineNo">1100</span>        LOG.debug("Bypassing {}", current);<a name="line.1100"></a>
-<span class="sourceLineNo">1101</span>        current.bypass();<a name="line.1101"></a>
-<span class="sourceLineNo">1102</span>        store.update(procedure);<a name="line.1102"></a>
-<span class="sourceLineNo">1103</span>        long parentID = current.getParentProcId();<a name="line.1103"></a>
-<span class="sourceLineNo">1104</span>        current = getProcedure(parentID);<a name="line.1104"></a>
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-<span class="sourceLineNo">1106</span><a name="line.1106"></a>
-<span class="sourceLineNo">1107</span>      //wake up waiting procedure, already checked there is no child<a name="line.1107"></a>
-<span class="sourceLineNo">1108</span>      if (procedure.getState() == ProcedureState.WAITING) {<a name="line.1108"></a>
-<span class="sourceLineNo">1109</span>        procedure.setState(ProcedureState.RUNNABLE);<a name="line.1109"></a>
-<span class="sourceLineNo">1110</span>        store.update(procedure);<a name="line.1110"></a>
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-<span class="sourceLineNo">1112</span><a name="line.1112"></a>
-<span class="sourceLineNo">1113</span>      // If we don't have the lock, we can't re-submit the queue,<a name="line.1113"></a>
-<span class="sourceLineNo">1114</span>      // since it is already executing. To get rid of the stuck situation, we<a name="line.1114"></a>
-<span class="sourceLineNo">1115</span>      // need to restart the master. With the procedure set to bypass, the procedureExecutor<a name="line.1115"></a>
-<span class="sourceLineNo">1116</span>      // will bypass it and won't get stuck again.<a name="line.1116"></a>
-<span class="sourceLineNo">1117</span>      if (lockEntry != null) {<a name="line.1117"></a>
-<span class="sourceLineNo">1118</span>        // add the procedure to run queue,<a name="line.1118"></a>
-<span class="sourceLineNo">1119</span>        scheduler.addFront(procedure);<a name="line.1119"></a>
-<span class="sourceLineNo">1120</span>        LOG.debug("Bypassing {} and its ancestors successfully, adding to queue", procedure);<a name="line.1120"></a>
-<span class="sourceLineNo">1121</span>      } else {<a name="line.1121"></a>
-<span class="sourceLineNo">1122</span>        LOG.debug("Bypassing {} and its ancestors successfully, but since it is already running, "<a name="line.1122"></a>
-<span class="sourceLineNo">1123</span>            + "skipping add to queue", procedure);<a name="line.1123"></a>
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-<span class="sourceLineNo">1125</span>      return true;<a name="line.1125"></a>
-<span class="sourceLineNo">1126</span><a name="line.1126"></a>
-<span class="sourceLineNo">1127</span>    } finally {<a name="line.1127"></a>
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-<span class="sourceLineNo">1129</span>        procExecutionLock.releaseLockEntry(lockEntry);<a name="line.1129"></a>
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-<span class="sourceLineNo">1133</span><a name="line.1133"></a>
-<span class="sourceLineNo">1134</span>  /**<a name="line.1134"></a>
-<span class="sourceLineNo">1135</span>   * Add a new root-procedure to the executor.<a name="line.1135"></a>
-<span class="sourceLineNo">1136</span>   * @param proc the new procedure to execute.<a name="line.1136"></a>
-<span class="sourceLineNo">1137</span>   * @param nonceKey the registered unique identifier for this operation from the client or process.<a name="line.1137"></a>
-<span class="sourceLineNo">1138</span>   * @return the procedure id, that can be used to monitor the operation<a name="line.1138"></a>
-<span class="sourceLineNo">1139</span>   */<a name="line.1139"></a>
-<span class="sourceLineNo">1140</span>  @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="NP_NULL_ON_SOME_PATH",<a name="line.1140"></a>
-<span class="sourceLineNo">1141</span>      justification = "FindBugs is blind to the check-for-null")<a name="line.1141"></a>
-<span class="sourceLineNo">1142</span>  public long submitProcedure(Procedure&lt;TEnvironment&gt; proc, NonceKey nonceKey) {<a name="line.1142"></a>
-<span class="sourceLineNo">1143</span>    Preconditions.checkArgument(lastProcId.get() &gt;= 0);<a name="line.1143"></a>
-<span class="sourceLineNo">1144</span><a name="line.1144"></a>
-<span class="sourceLineNo">1145</span>    prepareProcedure(proc);<a name="line.1145"></a>
-<span class="sourceLineNo">1146</span><a name="line.1146"></a>
-<span class="sourceLineNo">1147</span>    final Long currentProcId;<a name="line.1147"></a>
-<span class="sourceLineNo">1148</span>    if (nonceKey != null) {<a name="line.1148"></a>
-<span class="sourceLineNo">1149</span>      currentProcId = nonceKeysToProcIdsMap.get(nonceKey);<a name="line.1149"></a>
-<span class="sourceLineNo">1150</span>      Preconditions.checkArgument(currentProcId != null,<a name="line.1150"></a>
-<span class="sourceLineNo">1151</span>        "Expected nonceKey=" + nonceKey + " to be reserved, use registerNonce(); proc=" + proc);<a name="line.1151"></a>
-<span class="sourceLineNo">1152</span>    } else {<a name="line.1152"></a>
-<span class="sourceLineNo">1153</span>      currentProcId = nextProcId();<a name="line.1153"></a>
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-<span class="sourceLineNo">1155</span><a name="line.1155"></a>
-<span class="sourceLineNo">1156</span>    // Initialize the procedure<a name="line.1156"></a>
-<span class="sourceLineNo">1157</span>    proc.setNonceKey(nonceKey);<a name="line.1157"></a>
-<span class="sourceLineNo">1158</span>    proc.setProcId(currentProcId.longValue());<a name="line.1158"></a>
-<span class="sourceLineNo">1159</span><a name="line.1159"></a>
-<span class="sourceLineNo">1160</span>    // Commit the transaction<a name="line.1160"></a>
-<span class="sourceLineNo">1161</span>    store.insert(proc, null);<a name="line.1161"></a>
-<span class="sourceLineNo">1162</span>    LOG.debug("Stored {}", proc);<a name="line.1162"></a>
-<span class="sourceLineNo">1163</span><a name="line.1163"></a>
-<span class="sourceLineNo">1164</span>    // Add the procedure to the executor<a name="line.1164"></a>
-<span class="sourceLineNo">1165</span>    return pushProcedure(proc);<a name="line.1165"></a>
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-<span class="sourceLineNo">1167</span><a name="line.1167"></a>
-<span class="sourceLineNo">1168</span>  /**<a name="line.1168"></a>
-<span class="sourceLineNo">1169</span>   * Add a set of new root-procedure to the executor.<a name="line.1169"></a>
-<span class="sourceLineNo">1170</span>   * @param procs the new procedures to execute.<a name="line.1170"></a>
-<span class="sourceLineNo">1171</span>   */<a name="line.1171"></a>
-<span class="sourceLineNo">1172</span>  // TODO: Do we need to take nonces here?<a name="line.1172"></a>
-<span class="sourceLineNo">1173</span>  public void submitProcedures(Procedure&lt;TEnvironment&gt;[] procs) {<a name="line.1173"></a>
-<span class="sourceLineNo">1174</span>    Preconditions.checkArgument(lastProcId.get() &gt;= 0);<a name="line.1174"></a>
-<span class="sourceLineNo">1175</span>    if (procs == null || procs.length &lt;= 0) {<a name="line.1175"></a>
-<span class="sourceLineNo">1176</span>      return;<a name="line.1176"></a>
-<span class="sourceLineNo">1177</span>    }<a name="line.1177"></a>
-<span class="sourceLineNo">1178</span><a name="line.1178"></a>
-<span class="sourceLineNo">1179</span>    // Prepare procedure<a name="line.1179"></a>
-<span class="sourceLineNo">1180</span>    for (int i = 0; i &lt; procs.length; ++i) {<a name="line.1180"></a>
-<span class="sourceLineNo">1181</span>      prepareProcedure(procs[i]).setProcId(nextProcId());<a name="line.1181"></a>
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-<span class="sourceLineNo">1183</span><a name="line.1183"></a>
-<span class="sourceLineNo">1184</span>    // Commit the transaction<a name="line.1184"></a>
-<span class="sourceLineNo">1185</span>    store.insert(procs);<a name="line.1185"></a>
-<span class="sourceLineNo">1186</span>    if (LOG.isDebugEnabled()) {<a name="line.1186"></a>
-<span class="sourceLineNo">1187</span>      LOG.debug("Stored " + Arrays.toString(procs));<a name="line.1187"></a>
-<span class="sourceLineNo">1188</span>    }<a name="line.1188"></a>
-<span class="sourceLineNo">1189</span><a name="line.1189"></a>
-<span class="sourceLineNo">1190</span>    // Add the procedure to the executor<a name="line.1190"></a>
-<span class="sourceLineNo">1191</span>    for (int i = 0; i &lt; procs.length; ++i) {<a name="line.1191"></a>
-<span class="sourceLineNo">1192</span>      pushProcedure(procs[i]);<a name="line.1192"></a>
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-<span class="sourceLineNo">1196</span>  private Procedure&lt;TEnvironment&gt; prepareProcedure(Procedure&lt;TEnvironment&gt; proc) {<a name="line.1196"></a>
-<span class="sourceLineNo">1197</span>    Preconditions.checkArgument(proc.getState() == ProcedureState.INITIALIZING);<a name="line.1197"></a>
-<span class="sourceLineNo">1198</span>    Preconditions.checkArgument(!proc.hasParent(), "unexpected parent", proc);<a name="line.1198"></a>
-<span class="sourceLineNo">1199</span>    if (this.checkOwnerSet) {<a name="line.1199"></a>
-<span class="sourceLineNo">1200</span>      Preconditions.checkArgument(proc.hasOwner(), "missing owner");<a name="line.1200"></a>
-<span class="sourceLineNo">1201</span>    }<a name="line.1201"></a>
-<span class="sourceLineNo">1202</span>    return proc;<a name="line.1202"></a>
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-<span class="sourceLineNo">1204</span><a name="line.1204"></a>
-<span class="sourceLineNo">1205</span>  private long pushProcedure(Procedure&lt;TEnvironment&gt; proc) {<a name="line.1205"></a>
-<span class="sourceLineNo">1206</span>    final long currentProcId = proc.getProcId();<a name="line.1206"></a>
-<span class="sourceLineNo">1207</span><a name="line.1207"></a>
-<span class="sourceLineNo">1208</span>    // Update metrics on start of a procedure<a name="line.1208"></a>
-<span class="sourceLineNo">1209</span>    proc.updateMetricsOnSubmit(getEnvironment());<a name="line.1209"></a>
-<span class="sourceLineNo">1210</span><a name="line.1210"></a>
-<span class="sourceLineNo">1211</span>    // Create the rollback stack for the procedure<a name="line.1211"></a>
-<span class="sourceLineNo">1212</span>    RootProcedureState&lt;TEnvironment&gt; stack = new RootProcedureState&lt;&gt;();<a name="line.1212"></a>
-<span class="sourceLineNo">1213</span>    rollbackStack.put(currentProcId, stack);<a name="line.1213"></a>
-<span class="sourceLineNo">1214</span><a name="line.1214"></a>
-<span class="sourceLineNo">1215</span>    // Submit the new subprocedures<a name="line.1215"></a>
-<span class="sourceLineNo">1216</span>    assert !procedures.containsKey(currentProcId);<a name="line.1216"></a>
-<span class="sourceLineNo">1217</span>    procedures.put(currentProcId, proc);<a name="line.1217"></a>
-<span class="sourceLineNo">1218</span>    sendProcedureAddedNotification(currentProcId);<a name="line.1218"></a>
-<span class="sourceLineNo">1219</span>    scheduler.addBack(proc);<a name="line.1219"></a>
-<span class="sourceLineNo">1220</span>    return proc.getProcId();<a name="line.1220"></a>
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-<span class="sourceLineNo">1223</span>  /**<a name="line.1223"></a>
-<span class="sourceLineNo">1224</span>   * Send an abort notification the specified procedure.<a name="line.1224"></a>
-<span class="sourceLineNo">1225</span>   * Depending on the procedure implementation the abort can be considered or ignored.<a name="line.1225"></a>
-<span class="sourceLineNo">1226</span>   * @param procId the procedure to abort<a name="line.1226"></a>
-<span class="sourceLineNo">1227</span>   * @return true if the procedure exists and has received the abort, otherwise false.<a name="line.1227"></a>
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-<span class="sourceLineNo">1232</span><a name="line.1232"></a>
-<span class="sourceLineNo">1233</span>  /**<a name="line.1233"></a>
-<span class="sourceLineNo">1234</span>   * Send an abort notification to the specified procedure.<a name="line.1234"></a>
-<span class="sourceLineNo">1235</span>   * Depending on the procedure implementation, the abort can be considered or ignored.<a name="line.1235"></a>
-<span class="sourceLineNo">1236</span>   * @param procId the procedure to abort<a name="line.1236"></a>
-<span class="sourceLineNo">1237</span>   * @param mayInterruptIfRunning if the proc completed at least one step, should it be aborted?<a name="line.1237"></a>
-<span class="sourceLineNo">1238</span>   * @return true if the procedure exists and has received the abort, otherwise false.<a name="line.1238"></a>
-<span class="sourceLineNo">1239</span>   */<a name="line.1239"></a>
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-<span class="sourceLineNo">1243</span>      if (!mayInterruptIfRunning &amp;&amp; proc.wasExecuted()) {<a name="line.1243"></a>
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-<span class="sourceLineNo">1246</span>      return proc.abort(getEnvironment());<a name="line.1246"></a>
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-<span class="sourceLineNo">1250</span><a name="line.1250"></a>
-<span class="sourceLineNo">1251</span>  // ==========================================================================<a name="line.1251"></a>
-<span class="sourceLineNo">1252</span>  //  Executor query helpers<a name="line.1252"></a>
-<span class="sourceLineNo">1253</span>  // ==========================================================================<a name="line.1253"></a>
-<span class="sourceLineNo">1254</span>  public Procedure&lt;TEnvironment&gt; getProcedure(final long procId) {<a name="line.1254"></a>
-<span class="sourceLineNo">1255</span>    return procedures.get(procId);<a name="line.1255"></a>
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-<span class="sourceLineNo">1257</span><a name="line.1257"></a>
-<span class="sourceLineNo">1258</span>  public &lt;T extends Procedure&lt;TEnvironment&gt;&gt; T getProcedure(Class&lt;T&gt; clazz, long procId) {<a name="line.1258"></a>
-<span class="sourceLineNo">1259</span>    Procedure&lt;TEnvironment&gt; proc = getProcedure(procId);<a name="line.1259"></a>
-<span class="sourceLineNo">1260</span>    if (clazz.isInstance(proc)) {<a name="line.1260"></a>
-<span class="sourceLineNo">1261</span>      return clazz.cast(proc);<a name="line.1261"></a>
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-<span class="sourceLineNo">1265</span><a name="line.1265"></a>
-<span class="sourceLineNo">1266</span>  public Procedure&lt;TEnvironment&gt; getResult(long procId) {<a name="line.1266"></a>
-<span class="sourceLineNo">1267</span>    CompletedProcedureRetainer&lt;TEnvironment&gt; retainer = completed.get(procId);<a name="line.1267"></a>
-<span class="sourceLineNo">1268</span>    if (retainer == null) {<a name="line.1268"></a>
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+<span class="sourceLineNo">1063</span><a name="line.1063"></a>
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+<span class="sourceLineNo">1072</span>          lockWait, procedure, force);<a name="line.1072"></a>
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+<span class="sourceLineNo">1074</span>    try {<a name="line.1074"></a>
+<span class="sourceLineNo">1075</span>      // check whether the procedure is already finished<a name="line.1075"></a>
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+<span class="sourceLineNo">1079</span>      }<a name="line.1079"></a>
+<span class="sourceLineNo">1080</span><a name="line.1080"></a>
+<span class="sourceLineNo">1081</span>      if (procedure.hasChildren()) {<a name="line.1081"></a>
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+<span class="sourceLineNo">1084</span>      }<a name="line.1084"></a>
+<span class="sourceLineNo">1085</span><a name="line.1085"></a>
+<span class="sourceLineNo">1086</span>      // If the procedure has no parent or no child, we are safe to bypass it in whatever state<a name="line.1086"></a>
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+<span class="sourceLineNo">1088</span>          &amp;&amp; procedure.getState() != ProcedureState.WAITING<a name="line.1088"></a>
+<span class="sourceLineNo">1089</span>          &amp;&amp; procedure.getState() != ProcedureState.WAITING_TIMEOUT) {<a name="line.1089"></a>
+<span class="sourceLineNo">1090</span>        LOG.debug("Bypassing procedures in RUNNABLE, WAITING and WAITING_TIMEOUT states "<a name="line.1090"></a>
+<span class="sourceLineNo">1091</span>                + "(with no parent), {}",<a name="line.1091"></a>
+<span class="sourceLineNo">1092</span>            procedure);<a name="line.1092"></a>
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+<span class="sourceLineNo">1095</span><a name="line.1095"></a>
+<span class="sourceLineNo">1096</span>      // Now, the procedure is not finished, and no one can execute it since we take the lock now<a name="line.1096"></a>
+<span class="sourceLineNo">1097</span>      // And we can be sure that its ancestor is not running too, since their child has not<a name="line.1097"></a>
+<span class="sourceLineNo">1098</span>      // finished yet<a name="line.1098"></a>
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+<span class="sourceLineNo">1100</span>      while (current != null) {<a name="line.1100"></a>
+<span class="sourceLineNo">1101</span>        LOG.debug("Bypassing {}", current);<a name="line.1101"></a>
+<span class="sourceLineNo">1102</span>        current.bypass();<a name="line.1102"></a>
+<span class="sourceLineNo">1103</span>        store.update(procedure);<a name="line.1103"></a>
+<span class="sourceLineNo">1104</span>        long parentID = current.getParentProcId();<a name="line.1104"></a>
+<span class="sourceLineNo">1105</span>        current = getProcedure(parentID);<a name="line.1105"></a>
+<span class="sourceLineNo">1106</span>      }<a name="line.1106"></a>
+<span class="sourceLineNo">1107</span><a name="line.1107"></a>
+<span class="sourceLineNo">1108</span>      //wake up waiting procedure, already checked there is no child<a name="line.1108"></a>
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+<span class="sourceLineNo">1113</span><a name="line.1113"></a>
+<span class="sourceLineNo">1114</span>      // If we don't have the lock, we can't re-submit the queue,<a name="line.1114"></a>
+<span class="sourceLineNo">1115</span>      // since it is already executing. To get rid of the stuck situation, we<a name="line.1115"></a>
+<span class="sourceLineNo">1116</span>      // need to restart the master. With the procedure set to bypass, the procedureExecutor<a name="line.1116"></a>
+<span class="sourceLineNo">1117</span>      // will bypass it and won't get stuck again.<a name="line.1117"></a>
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+<span class="sourceLineNo">1121</span>        LOG.debug("Bypassing {} and its ancestors successfully, adding to queue", procedure);<a name="line.1121"></a>
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+<span class="sourceLineNo">1124</span>            + "skipping add to queue", procedure);<a name="line.1124"></a>
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+<span class="sourceLineNo">1127</span><a name="line.1127"></a>
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+<span class="sourceLineNo">1134</span><a name="line.1134"></a>
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+<span class="sourceLineNo">1136</span>   * Add a new root-procedure to the executor.<a name="line.1136"></a>
+<span class="sourceLineNo">1137</span>   * @param proc the new procedure to execute.<a name="line.1137"></a>
+<span class="sourceLineNo">1138</span>   * @param nonceKey the registered unique identifier for this operation from the client or process.<a name="line.1138"></a>
+<span class="sourceLineNo">1139</span>   * @return the procedure id, that can be used to monitor the operation<a name="line.1139"></a>
+<span class="sourceLineNo">1140</span>   */<a name="line.1140"></a>
+<span class="sourceLineNo">1141</span>  @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="NP_NULL_ON_SOME_PATH",<a name="line.1141"></a>
+<span class="sourceLineNo">1142</span>      justification = "FindBugs is blind to the check-for-null")<a name="line.1142"></a>
+<span class="sourceLineNo">1143</span>  public long submitProcedure(Procedure&lt;TEnvironment&gt; proc, NonceKey nonceKey) {<a name="line.1143"></a>
+<span class="sourceLineNo">1144</span>    Preconditions.checkArgument(lastProcId.get() &gt;= 0);<a name="line.1144"></a>
+<span class="sourceLineNo">1145</span><a name="line.1145"></a>
+<span class="sourceLineNo">1146</span>    prepareProcedure(proc);<a name="line.1146"></a>
+<span class="sourceLineNo">1147</span><a name="line.1147"></a>
+<span class="sourceLineNo">1148</span>    final Long currentProcId;<a name="line.1148"></a>
+<span class="sourceLineNo">1149</span>    if (nonceKey != null) {<a name="line.1149"></a>
+<span class="sourceLineNo">1150</span>      currentProcId = nonceKeysToProcIdsMap.get(nonceKey);<a name="line.1150"></a>
+<span class="sourceLineNo">1151</span>      Preconditions.checkArgument(currentProcId != null,<a name="line.1151"></a>
+<span class="sourceLineNo">1152</span>        "Expected nonceKey=" + nonceKey + " to be reserved, use registerNonce(); proc=" + proc);<a name="line.1152"></a>
+<span class="sourceLineNo">1153</span>    } else {<a name="line.1153"></a>
+<span class="sourceLineNo">1154</span>      currentProcId = nextProcId();<a name="line.1154"></a>
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+<span class="sourceLineNo">1156</span><a name="line.1156"></a>
+<span class="sourceLineNo">1157</span>    // Initialize the procedure<a name="line.1157"></a>
+<span class="sourceLineNo">1158</span>    proc.setNonceKey(nonceKey);<a name="line.1158"></a>
+<span class="sourceLineNo">1159</span>    proc.setProcId(currentProcId.longValue());<a name="line.1159"></a>
+<span class="sourceLineNo">1160</span><a name="line.1160"></a>
+<span class="sourceLineNo">1161</span>    // Commit the transaction<a name="line.1161"></a>
+<span class="sourceLineNo">1162</span>    store.insert(proc, null);<a name="line.1162"></a>
+<span class="sourceLineNo">1163</span>    LOG.debug("Stored {}", proc);<a name="line.1163"></a>
+<span class="sourceLineNo">1164</span><a name="line.1164"></a>
+<span class="sourceLineNo">1165</span>    // Add the procedure to the executor<a name="line.1165"></a>
+<span class="sourceLineNo">1166</span>    return pushProcedure(proc);<a name="line.1166"></a>
+<span class="sourceLineNo">1167</span>  }<a name="line.1167"></a>
+<span class="sourceLineNo">1168</span><a name="line.1168"></a>
+<span class="sourceLineNo">1169</span>  /**<a name="line.1169"></a>
+<span class="sourceLineNo">1170</span>   * Add a set of new root-procedure to the executor.<a name="line.1170"></a>
+<span class="sourceLineNo">1171</span>   * @param procs the new procedures to execute.<a name="line.1171"></a>
+<span class="sourceLineNo">1172</span>   */<a name="line.1172"></a>
+<span class="sourceLineNo">1173</span>  // TODO: Do we need to take nonces here?<a name="line.1173"></a>
+<span class="sourceLineNo">1174</span>  public void submitProcedures(Procedure&lt;TEnvironment&gt;[] procs) {<a name="line.1174"></a>
+<span class="sourceLineNo">1175</span>    Preconditions.checkArgument(lastProcId.get() &gt;= 0);<a name="line.1175"></a>
+<span class="sourceLineNo">1176</span>    if (procs == null || procs.length &lt;= 0) {<a name="line.1176"></a>
+<span class="sourceLineNo">1177</span>      return;<a name="line.1177"></a>
+<span class="sourceLineNo">1178</span>    }<a name="line.1178"></a>
+<span class="sourceLineNo">1179</span><a name="line.1179"></a>
+<span class="sourceLineNo">1180</span>    // Prepare procedure<a name="line.1180"></a>
+<span class="sourceLineNo">1181</span>    for (int i = 0; i &lt; procs.length; ++i) {<a name="line.1181"></a>
+<span class="sourceLineNo">1182</span>      prepareProcedure(procs[i]).setProcId(nextProcId());<a name="line.1182"></a>
+<span class="sourceLineNo">1183</span>    }<a name="line.1183"></a>
+<span class="sourceLineNo">1184</span><a name="line.1184"></a>
+<span class="sourceLineNo">1185</span>    // Commit the transaction<a name="line.1185"></a>
+<span class="sourceLineNo">1186</span>    store.insert(procs);<a name="line.1186"></a>
+<span class="sourceLineNo">1187</span>    if (LOG.isDebugEnabled()) {<a name="line.1187"></a>
+<span class="sourceLineNo">1188</span>      LOG.debug("Stored " + Arrays.toString(procs));<a name="line.1188"></a>
+<span class="sourceLineNo">1189</span>    }<a name="line.1189"></a>
+<span class="sourceLineNo">1190</span><a name="line.1190"></a>
+<span class="sourceLineNo">1191</span>    // Add the procedure to the executor<a name="line.1191"></a>
+<span class="sourceLineNo">1192</span>    for (int i = 0; i &lt; procs.length; ++i) {<a name="line.1192"></a>
+<span class="sourceLineNo">1193</span>      pushProcedure(procs[i]);<a name="line.1193"></a>
+<span class="sourceLineNo">1194</span>    }<a name="line.1194"></a>
+<span class="sourceLineNo">1195</span>  }<a name="line.1195"></a>
+<span class="sourceLineNo">1196</span><a name="line.1196"></a>
+<span class="sourceLineNo">1197</span>  private Procedure&lt;TEnvironment&gt; prepareProcedure(Procedure&lt;TEnvironment&gt; proc) {<a name="line.1197"></a>
+<span class="sourceLineNo">1198</span>    Preconditions.checkArgument(proc.getState() == ProcedureState.INITIALIZING);<a name="line.1198"></a>
+<span class="sourceLineNo">1199</span>    Preconditions.checkArgument(!proc.hasParent(), "unexpected parent", proc);<a name="line.1199"></a>
+<span class="sourceLineNo">1200</span>    if (this.checkOwnerSet) {<a name="line.1200"></a>
+<span class="sourceLineNo">1201</span>      Preconditions.checkArgument(proc.hasOwner(), "missing owner");<a name="line.1201"></a>
+<span class="sourceLineNo">1202</span>    }<a name="line.1202"></a>
+<span class="sourceLineNo">1203</span>    return proc;<a name="line.1203"></a>
+<span class="sourceLineNo">1204</span>  }<a name="line.1204"></a>
+<span class="sourceLineNo">1205</span><a name="line.1205"></a>
+<span class="sourceLineNo">1206</span>  private long pushProcedure(Procedure&lt;TEnvironment&gt; proc) {<a name="line.1206"></a>
+<span class="sourceLineNo">1207</span>    final long currentProcId = proc.getProcId();<a name="line.1207"></a>
+<span class="sourceLineNo">1208</span><a name="line.1208"></a>
+<span class="sourceLineNo">1209</span>    // Update metrics on start of a procedure<a name="line.1209"></a>
+<span class="sourceLineNo">1210</span>    proc.updateMetricsOnSubmit(getEnvironment());<a name="line.1210"></a>
+<span class="sourceLineNo">1211</span><a name="line.1211"></a>
+<span class="sourceLineNo">1212</span>    // Create the rollback stack for the procedure<a name="line.1212"></a>
+<span class="sourceLineNo">1213</span>    RootProcedureState&lt;TEnvironment&gt; stack = new RootProcedureState&lt;&gt;();<a name="line.1213"></a>
+<span class="sourceLineNo">1214</span>    rollbackStack.put(currentProcId, stack);<a name="line.1214"></a>
+<span class="sourceLineNo">1215</span><a name="line.1215"></a>
+<span class="sourceLineNo">1216</span>    // Submit the new subprocedures<a name="line.1216"></a>
+<span class="sourceLineNo">1217</span>    assert !procedures.containsKey(currentProcId);<a name="line.1217"></a>
+<span class="sourceLineNo">1218</span>    procedures.put(currentProcId, proc);<a name="line.1218"></a>
+<span class="sourceLineNo">1219</span>    sendProcedureAddedNotification(currentProcId);<a name="line.1219"></a>
+<span class="sourceLineNo">1220</span>    scheduler.addBack(proc);<a name="line.1220"></a>
+<span class="sourceLineNo">1221</span>    return proc.getProcId();<a name="line.1221"></a>
+<span class="sourceLineNo">1222</span>  }<a name="line.1222"></a>
+<span class="sourceLineNo">1223</span><a name="line.1223"></a>
+<span class="sourceLineNo">1224</span>  /**<a name="line.1224"></a>
+<span class="sourceLineNo">1225</span>   * Send an abort notification the specified procedure.<a name="line.1225"></a>
+<span class="sourceLineNo">1226</span>   * Depending on the procedure implementation the abort can be considered or ignored.<a name="line.1226"></a>
+<span class="sourceLineNo">1227</span>   * @param procId the procedure to abort<a name="line.1227"></a>
+<span class="sourceLineNo">1228</span>   * @return true if the procedure exists and has received the abort, otherwise false.<a name="line.1228"></a>
+<span class="sourceLineNo">1229</span>   */<a name="line.1229"></a>
+<span class="sourceLineNo">1230</span>  public boolean abort(long procId) {<a name="line.1230"></a>
+<span class="sourceLineNo">1231</span>    return abort(procId, true);<a name="line.1231"></a>
+<span class="sourceLineNo">1232</span>  }<a name="line.1232"></a>
+<span class="sourceLineNo">1233</span><a name="line.1233"></a>
+<span class="sourceLineNo">1234</span>  /**<a name="line.1234"></a>
+<span class="sourceLineNo">1235</span>   * Send an abort notification to the specified procedure.<a name="line.1235"></a>
+<span class="sourceLineNo">1236</span>   * Depending on the procedure implementation, the abort can be considered or ignored.<a name="line.1236"></a>
+<span class="sourceLineNo">1237</span>   * @param procId the procedure to abort<a name="line.1237"></a>
+<span class="sourceLineNo">1238</span>   * @param mayInterruptIfRunning if the proc completed at least one step, should it be aborted?<a name="line.1238"></a>
+<span class="sourceLineNo">1239</span>   * @return true if the procedure exists and has received the abort, otherwise false.<a name="line.1239"></a>
+<span class="sourceLineNo">1240</span>   */<a name="line.1240"></a>
+<span class="sourceLineNo">1241</span>  public boolean abort(long procId, boolean mayInterruptIfRunning) {<a name="line.1241"></a>
+<span class="sourceLineNo">1242</span>    Procedure&lt;TEnvironment&gt; proc = procedures.get(procId);<a name="line.1242"></a>
+<span class="sourceLineNo">1243</span>    if (proc != null) {<a name="line.1243"></a>
+<span class="sourceLineNo">1244</span>      if (!mayInterruptIfRunning &amp;&amp; proc.wasExecuted()) {<a name="line.1244"></a>
+<span class="sourceLineNo">1245</span>        return false;<a name="line.1245"></a>
+<span class="sourceLineNo">1246</span>      }<a name="line.1246"></a>
+<span class="sourceLineNo">1247</span>      return proc.abort(getEnvironment());<a name="line.1247"></a>
+<span class="sourceLineNo">1248</span>    }<a name="line.1248"></a>
+<span class="sourceLineNo">1249</span>    return false;<a name="line.1249"></a>
+<span class="sourceLineNo">1250</span>  }<a name="line.1250"></a>
+<span class="sourceLineNo">1251</span><a name="line.1251"></a>
+<span class="sourceLineNo">1252</span>  // ==========================================================================<a name="line.1252"></a>
+<span class="sourceLineNo">1253</span>  //  Executor query helpers<a name="line.1253"></a>
+<span class="sourceLineNo">1254</span>  // ==========================================================================<a name="line.1254"></a>
+<span class="sourceLineNo">1255</span>  public Procedure&lt;TEnvironment&gt; getProcedure(final long procId) {<a name="line.1255"></a>
+<span class="sourceLineNo">1256</span>    return procedures.get(procId);<a name="line.1256"></a>
+<span class="sourceLineNo">1257</span>  }<a name="line.1257"></a>
+<span class="sourceLineNo">1258</span><a name="line.1258"></a>
+<span class="sourceLineNo">1259</span>  public &lt;T extends Procedure&lt;TEnvironment&gt;&gt; T getProcedure(Class&lt;T&gt; clazz, long procId) {<a name="line.1259"></a>
+<span class="sourceLineNo">1260</span>    Procedure&lt;TEnvironment&gt; proc = getProcedure(procId);<a name="line.1260"></a>
+<span class="sourceLineNo">1261</span>    if (clazz.isInstance(proc)) {<a name="line.1261"></a>
+<span class="sourceLineNo">1262</span>      return clazz.cast(proc);<a name="line.1262"></a>
+<span class="sourceLineNo">1263</span>    }<a name="line.1263"></a>
+<span class="sourceLineNo">1264</span>    return null;<a name="line.1264"></a>
+<span class="sourceLineNo">1265</span>  }<a name="line.1265"></a>
+<span class="sourceLineNo">1266</span><a name="line.1266"></a>
+<span class="sourceLineNo">1267</span>  public Procedure&lt;TEnvironment&gt; getResult(long procId) {<a name="line.1267"></a>
+<span class="sourceLineNo">1268</span>    CompletedProcedureRetainer&lt;TEnvironment&gt; retainer = completed.get(procId);<a name="line.1268"></a>
+<span class="sourceLineNo">1269</span>    if (retainer == null) {<a name="line.1269"></a>
+<span class="sourceLineNo">1270</span>      return null;<a name="line.1270"></a>
+<span class="sourceLineNo">1271</span>    } else {<a name="line.1271"></a>
+<span class="sourceLineNo">1272</span>      return retainer.getProcedure();<a name="line.1272"></a>
+<span class="sourceLineNo">1273</span>    }<a name="line.1273"></a>
+<span class="sourceLineNo">1274</span>  }<a name="line.1274"></a>
+<span class="sourceLineNo">1275</span><a name="line.1275"></a>
+<span class="sourceLineNo">1276</span>  /**<a name="line.1276"></a>
+<span class="sourceLineNo">1277</span>   * Return true if the procedure is finished.<a name="line.1277"></a>
+<span class="sourceLineNo">1278</span>   * The state may be "completed successfully" or "failed and rolledback".<a name="line.1278"></a>
+<span class="sourceLineNo">1279</span>   * Use getResult() to check the state or get the result data.<a name="line.1279"></a>
+<span class="sourceLineNo">1280</span>   * @param procId the ID of the procedure to check<a name="line.1280"></a>
+<span class="sourceLineNo">1281</span>   * @return true if the procedure execution is finished, otherwise false.<a name="line.1281"></a>
+<span class="sourceLineNo">1282</span>   */<a name="line.1282"></a>
+<span class="sourceLineNo">1283</span>  public boolean isFinished(final long procId) {<a name="line.1283"></a>
+<span class="sourceLineNo">1284</span>    return !procedures.containsKey(procId);<a name="line.1284"></a>
+<span class="sourceLineNo">1285</span>  }<a name="line.1285"></a>
+<span class="sourceLineNo">1286</span><a name="line.1286"></a>
+<span class="sourceLineNo">1287</span>  /**<a name="line.1287"></a>
+<span class="sourceLineNo">1288</span>   * Return true if the procedure is started.<a name="line.1288"></a>
+<span class="sourceLineNo">1289</span>   * @param procId the ID of the procedure to check<a name="line.1289"></a>
+<span class="sourceLineNo">1290</span>   * @return true if the procedure execution is started, otherwise false.<a name="line.1290"></a>
+<span class="sourceLineNo">1291</span>   */<a name="line.1291"></a>
+<span class="sourceLineNo">1292</span>  public boolean isStarted(long procId) {<a name="line.1292"></a>
+<span class="sourceLineNo">1293</span>    Procedure&lt;?&gt; proc = procedures.get(procId);<a name="line.1293"></a>
+<span class="sourceLineNo">1294</span>    if (proc == null) {<a name="line.1294"></a>
+<span class="sourceLineNo">1295</span>      return completed.get(procId) != null;<a name="line.1295"></a>
+<span class="sourceLineNo">1296</span>    }<a name="line.1296"></a>
+<span class="sourceLineNo">1297</span>    return proc.wasExecuted();<a name="line.1297"></a>
+<span class="sourceLineNo">1298</span>  }<a name="line.1298"></a>
+<span class="sourceLineNo">1299</span><a name="line.1299"></a>
+<span class="sourceLineNo">1300</span>  /**<a name="line.1300"></a>
+<span class="sourceLineNo">1301</span>   * Mark the specified completed procedure, as ready to remove.<a name="line.1301"></a>
+<span class="sourceLineNo">1302</span>   * @param procId the ID of the procedure to remove<a name="line.1302"></a>
+<span class="sourceLineNo">1303</span>   */<a name="line.1303"></a>
+<span class="sourceLineNo">1304</span>  public void removeResult(long procId) {<a name="line.1304"></a>
+<span class="sourceLineNo">1305</span>    CompletedProcedureRetainer&lt;TEnvironment&gt; retainer = completed.get(procId);<a name="line.1305"></a>
+<span class="sourceLineNo">1306</span>    if (retainer == null) {<a name="line.1306"></a>
+<span class="sourceLineNo">1307</span>      assert !procedures.containsKey(procId) : "pid=" + procId + " is still running";<a name="line.1307"></a>
+<span class="sourceLineNo">1308</span>      LOG.debug("pid={} already removed by the cleaner.", procId);<a name="line.1308"></a>
+<span class="sourceLineNo">1309</span>      return;<a name="line.1309"></a>
+<span class="sourceLineNo">1310</span>    }<a name="line.1310"></a>
+<span class="sourceLineNo">1311</span><a name="line.1311"></a>
+<span class="sourceLineNo">1312</span>    // The CompletedProcedureCleaner will take care of deletion, once the TTL is expired.<a name="line.1312"></a>
+<span class="sourceLineNo">1313</span>    retainer.setClientAckTime(EnvironmentEdgeManager.currentTime());<a name="line.1313"></a>
+<span class="sourceLineNo">1314</span>  }<a name="line.1314"></a>
+<span class="sourceLineNo">1315</span><a name="line.1315"></a>
+<span class="sourceLineNo">1316</span>  public Procedure&lt;TEnvironment&gt; getResultOrProcedure(long procId) {<a name="line.1316"></a>
+<span class="sourceLineNo">1317</span>    CompletedProcedureRetainer&lt;TEnvironment&gt; retainer = completed.get(procId);<a name="line.1317"></a>
+<span class="sourceLineNo">1318</span>    if (retainer == null) {<a name="line.1318"></a>
+<span class="sourceLineNo">1319</span>      return procedures.get(procId);<a name="line.1319"></a>
+<span class="sourceLineNo">1320</span>    } else {<a name="line.1320"></a>
+<span class="sourceLineNo">1321</span>      return retainer.getProcedure();<a name="line.1321"></a>
+<span class="sourceLineNo">1322</span>    }<a name="line.1322"></a>
+<span class="sourceLineNo">1323</span>  }<a name="line.1323"></a>
+<span class="sourceLineNo">1324</span><a name="line.1324"></a>
+<span class="sourceLineNo">1325</span>  /**<a name="line.1325"></a>
+<span class="sourceLineNo">1326</span>   * Check if the user is this procedure's owner<a name="line.1326"></a>
+<span class="sourceLineNo">1327</span>   * @param procId the target procedure<a name="line.1327"></a>
+<span class="sourceLineNo">1328</span>   * @param user the user<a name="line.1328"></a>
+<span class="sourceLineNo">1329</span>   * @return true if the user is the owner of the procedure,<a name="line.1329"></a>
+<span class="sourceLineNo">1330</span>   *   false otherwise or the owner is unknown.<a name="line.1330"></a>
+<span class="sourceLineNo">1331</span>   */<a name="line.1331"></a>
+<span class="sourceLineNo">1332</span>  public boolean isProcedureOwner(long procId, User user) {<a name="line.1332"></a>
+<span class="sourceLineNo">1333</span>    if (user == null) {<a name="line.1333"></a>
+<span class="sourceLineNo">1334</span>      return false;<a name="line.1334"></a>
+<span class="sourceLineNo">1335</span>    }<a name="line.1335"></a>
+<span class="sourceLineNo">1336</span>    final Procedure&lt;TEnvironment&gt; runningProc = procedures.get(procId);<a name="line.1336"></a>
+<span class="sourceLineNo">1337</span>    if (runningProc != null) {<a name="line.1337"></a>
+<span class="sourceLineNo">1338</span>      return runningProc.getOwner().equals(user.getShortName());<a name="line.1338"></a>
+<span class="sourceLineNo">1339</span>    }<a name="line.1339"></a>
+<span class="sourceLineNo">1340</span><a name="line.1340"></a>
+<span class="sourceLineNo">1341</span>    final CompletedProcedureRetainer&lt;TEnvironment&gt; retainer = completed.get(procId);<a name="line.1341"></a>
+<span class="sourceLineNo">1342</span>    if (retainer != null) {<a name="line.1342"></a>
+<span class="sourceLineNo">1343</span>      return retainer.getProcedure().getOwner().equals(user.getShortName());<a name="line.1343"></a>
+<span class="sourceLineNo">1344</span>    }<a name="line.1344"></a>
+<span class="sourceLineNo">1345</span><a name="line.1345"></a>
+<span class="sourceLineNo">1346</span>    // Procedure either does not exist or has already completed and got cleaned up.<a name="line.1346"></a>
+<span class="sourceLineNo">1347</span>    // At this time, we cannot check the owner of the procedure<a name="line.1347"></a>
+<span class="sourceLineNo">1348</span>    return false;<a name="line.1348"></a>
+<span class="sourceLineNo">1349</span>  }<a name="line.1349"></a>
+<span class="sourceLineNo">1350</span><a name="line.1350"></a>
+<span class="sourceLineNo">1351</span>  /**<a name="line.1351"></a>
+<span class="sourceLineNo">1352</span>   * Should only be used when starting up, where the procedure workers have not been started.<a name="line.1352"></a>
+<span class="sourceLineNo">1353</span>   * &lt;p/&gt;<a name="line.1353"></a>
+<span class="sourceLineNo">1354</span>   * If the procedure works has been started, the return values maybe changed when you are<a name="line.1354"></a>
+<span class="sourceLineNo">1355</span>   * processing it so usually this is not safe. Use {@link #getProcedures()} below for most cases as<a name="line.1355"></a>
+<span class="sourceLineNo">1356</span>   * it will do a copy, and also include the finished procedures.<a name="line.1356"></a>
+<span class="sourceLineNo">1357</span>   */<a name="line.1357"></a>
+<span class="sourceLineNo">1358</span>  public Collection&lt;Procedure&lt;TEnvironment&gt;&gt; getActiveProceduresNoCopy() {<a name="line.1358"></a>
+<span class="sourceLineNo">1359</span>    return procedures.values();<a name="line.1359"></a>
+<span class="sourceLineNo">1360</span>  }<a name="line.1360"></a>
+<span class="sourceLineNo">1361</span><a name="line.1361"></a>
+<span class="sourceLineNo">1362</span>  /**<a name="line.1362"></a>
+<span class="sourceLineNo">1363</span>   * Get procedures.<a name="line.1363"></a>
+<span class="sourceLineNo">1364</span>   * @return the procedures in a list<a name="line.1364"></a>
+<span class="sourceLineNo">1365</span>   */<a name="line.1365"></a>
+<span class="sourceLineNo">1366</span>  public List&lt;Procedure&lt;TEnvironment&gt;&gt; getProcedures() {<a name="line.1366"></a>
+<span class="sourceLineNo">1367</span>    List&lt;Procedure&lt;TEnvironment&gt;&gt; procedureList =<a name="line.1367"></a>
+<span class="sourceLineNo">1368</span>      new ArrayList&lt;&gt;(procedures.size() + completed.size());<a name="line.1368"></a>
+<span class="sourceLineNo">1369</span>    procedureList.addAll(procedures.values());<a name="line.1369"></a>
+<span class="sourceLineNo">1370</span>    // Note: The procedure could show up twice in the list with different state, as<a name="line.1370"></a>
+<span class="sourceLineNo">1371</span>    // it could complete after we walk through procedures list and insert into<a name="line.1371"></a>
+<span class="sourceLineNo">1372</span>    // procedureList - it is ok, as we will use the information in the Procedure<a name="line.1372"></a>
+<span class="sourceLineNo">1373</span>    // to figure it out; to prevent this would increase the complexity of the logic.<a name="line.1373"></a>
+<span class="sourceLineNo">1374</span>    completed.values().stream().map(CompletedProcedureRetainer::getProcedure)<a name="line.1374"></a>
+<span class="sourceLineNo">1375</span>      .forEach(procedureList::add);<a name="line.1375"></a>
+<span class="sourceLineNo">1376</span>    return procedureList;<a name="line.1376"></a>
+<span class="sourceLineNo">1377</span>  }<a name="line.1377"></a>
+<span class="sourceLineNo">1378</span><a name="line.1378"></a>
+<span class="sourceLineNo">1379</span>  // ==========================================================================<a name="line.1379"></a>
+<span class="sourceLineNo">1380</span>  //  Listeners helpers<a name="line.1380"></a>
+<span class="sourceLineNo">1381</span>  // ==============

<TRUNCATED>

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