runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/ProcessThread.java

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.argeo.slc.core.execution;
  18
  19 import java.util.ArrayList;
  20 import java.util.List;
  21
  22 import org.apache.commons.logging.Log;
  23 import org.apache.commons.logging.LogFactory;
  24 import org.argeo.slc.execution.ExecutionModulesManager;
  25 import org.argeo.slc.process.RealizedFlow;
  26 import org.argeo.slc.process.SlcExecution;
  27
  28 /** Thread of the SLC Process, starting the sub executions. */
  29 public class ProcessThread extends Thread {
  30         private final static Log log = LogFactory.getLog(ProcessThread.class);
  31
  32         private final ExecutionModulesManager executionModulesManager;
  33         private final SlcExecution slcProcess;
  34         private final ProcessThreadGroup processThreadGroup;
  35         private final List<RealizedFlow> flowsToProcess = new ArrayList<RealizedFlow>();
  36
  37         private Boolean hadAnError = false;
  38
  39         public ProcessThread(ExecutionModulesManager executionModulesManager,
  40                         SlcExecution slcExecution) {
  41                 super(executionModulesManager.getProcessesThreadGroup(),
  42                                 "SLC Process #" + slcExecution.getUuid());
  43                 this.executionModulesManager = executionModulesManager;
  44                 this.slcProcess = slcExecution;
  45                 processThreadGroup = new ProcessThreadGroup(executionModulesManager,
  46                                 this);
  47         }
  48
  49         public void run() {
  50                 log.info("\n##\n## SLC Process #" + slcProcess.getUuid()
  51                                 + " STARTED\n##\n");
  52
  53                 slcProcess.setStatus(SlcExecution.STATUS_RUNNING);
  54                 executionModulesManager.dispatchUpdateStatus(slcProcess,
  55                                 SlcExecution.STATUS_SCHEDULED, SlcExecution.STATUS_RUNNING);
  56
  57                 flowsToProcess.addAll(slcProcess.getRealizedFlows());
  58
  59                 while (flowsToProcess.size() > 0) {
  60                         RealizedFlow flow = flowsToProcess.remove(0);
  61                         ExecutionThread thread = new ExecutionThread(this, flow);
  62                         thread.start();
  63
  64                         try {
  65                                 thread.join();
  66                         } catch (InterruptedException e) {
  67                                 log.error("Flow " + flow + " was interrupted", e);
  68                         }
  69
  70                         // synchronized (this) {
  71                         // try {
  72                         // wait();
  73                         // } catch (InterruptedException e) {
  74                         // // silent
  75                         // }
  76                         // }
  77                 }
  78
  79                 // TODO: error management at flow level?
  80                 if (hadAnError)
  81                         slcProcess.setStatus(SlcExecution.STATUS_ERROR);
  82                 else
  83                         slcProcess.setStatus(SlcExecution.STATUS_FINISHED);
  84                 executionModulesManager.dispatchUpdateStatus(slcProcess,
  85                                 SlcExecution.STATUS_RUNNING, slcProcess.getStatus());
  86
  87                 log.info("\n## SLC Process #" + slcProcess.getUuid() + " COMPLETED\n");
  88         }
  89
  90         public void notifyError() {
  91                 hadAnError = true;
  92         }
  93
  94         public synchronized void flowCompleted() {
  95                 // notifyAll();
  96         }
  97
  98         public SlcExecution getSlcProcess() {
  99                 return slcProcess;
 100         }
 101
 102         public ProcessThreadGroup getProcessThreadGroup() {
 103                 return processThreadGroup;
 104         }
 105
 106         public ExecutionModulesManager getExecutionModulesManager() {
 107                 return executionModulesManager;
 108         }
 109 }