Implement ref spec

[gpl/argeo-slc.git] / runtime / org.argeo.slc.core / src / main / java / org / argeo / slc / core / execution / internal / ExecutionThread.java

diff --git a/runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/internal/ExecutionThread.java b/runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/internal/ExecutionThread.java
new file mode 100644 (file)
index 0000000..043f74b
--- /dev/null
+++ b/runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/internal/ExecutionThread.java
@@ -0,0 +1,66 @@
+package org.argeo.slc.core.execution.internal;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.slc.execution.ExecutionFlowDescriptor;
+import org.argeo.slc.process.RealizedFlow;
+import org.argeo.slc.process.SlcExecution;
+import org.argeo.slc.process.SlcExecutionNotifier;
+import org.argeo.slc.process.SlcExecutionStep;
+
+/** Thread of a single execution */
+public class ExecutionThread extends Thread {
+       private final static Log log = LogFactory.getLog(ExecutionThread.class);
+
+       private final RealizedFlow realizedFlow;
+       private final ProcessThread processThread;
+
+       public ExecutionThread(ProcessThread processThread,
+                       RealizedFlow realizedFlow) {
+               super(processThread.getProcessThreadGroup(), "Flow "
+                               + realizedFlow.getFlowDescriptor().getName());
+               this.realizedFlow = realizedFlow;
+               this.processThread = processThread;
+       }
+
+       public void run() {
+               ExecutionFlowDescriptor executionFlowDescriptor = realizedFlow
+                               .getFlowDescriptor();
+               String flowName = executionFlowDescriptor.getName();
+
+               dispatchAddStep(processThread.getSlcProcess(), new SlcExecutionStep(
+                               SlcExecutionStep.TYPE_PHASE_START, "Flow " + flowName));
+
+               try {
+                       processThread.getExecutionModulesManager().execute(realizedFlow);
+               } catch (Exception e) {
+                       // TODO: re-throw exception ?
+                       String msg = "Execution of flow " + flowName + " failed.";
+                       log.error(msg, e);
+                       dispatchAddStep(processThread.getSlcProcess(),
+                                       new SlcExecutionStep(msg + " " + e.getMessage()));
+               } finally {
+                       processThread.flowCompleted();
+                       dispatchAddStep(processThread.getSlcProcess(),
+                                       new SlcExecutionStep(SlcExecutionStep.TYPE_PHASE_END,
+                                                       "Flow " + flowName));
+               }
+       }
+
+       protected void dispatchAddStep(SlcExecution slcExecution,
+                       SlcExecutionStep step) {
+               slcExecution.getSteps().add(step);
+               List<SlcExecutionStep> steps = new ArrayList<SlcExecutionStep>();
+               steps.add(step);
+               for (Iterator<SlcExecutionNotifier> it = processThread
+                               .getExecutionModulesManager().getSlcExecutionNotifiers()
+                               .iterator(); it.hasNext();) {
+                       it.next().addSteps(slcExecution, steps);
+               }
+       }
+
+}