/*
- * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
+ * Copyright (C) 2007-2012 Mathieu Baudier
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-
package org.argeo.slc.core.execution;
+import java.util.ArrayList;
+import java.util.List;
+
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
+import org.argeo.slc.SlcException;
import org.argeo.slc.execution.ExecutionFlowDescriptor;
-import org.argeo.slc.process.RealizedFlow;
-import org.argeo.slc.process.SlcExecutionStep;
+import org.argeo.slc.execution.ExecutionStep;
+import org.argeo.slc.execution.RealizedFlow;
+import org.springframework.security.Authentication;
+import org.springframework.security.context.SecurityContextHolder;
/** Thread of a single execution */
public class ExecutionThread extends Thread {
private final RealizedFlow realizedFlow;
private final ProcessThread processThread;
+ private List<Runnable> destructionCallbacks = new ArrayList<Runnable>();
+
public ExecutionThread(ProcessThread processThread,
RealizedFlow realizedFlow) {
super(processThread.getProcessThreadGroup(), "Flow "
}
public void run() {
- if (getContextClassLoader() != null) {
- if (log.isTraceEnabled())
- log.debug("Context class loader set to "
- + getContextClassLoader());
- }
+ // authenticate thread
+ Authentication authentication = getProcessThreadGroup()
+ .getAuthentication();
+ if (authentication == null)
+ throw new SlcException("Can only execute authenticated threads");
+ SecurityContextHolder.getContext().setAuthentication(authentication);
// Retrieve execution flow descriptor
ExecutionFlowDescriptor executionFlowDescriptor = realizedFlow
.getFlowDescriptor();
String flowName = executionFlowDescriptor.getName();
- dispatchAddStep(new SlcExecutionStep(SlcExecutionStep.PHASE_START,
- "Flow " + flowName));
+ dispatchAddStep(new ExecutionStep(realizedFlow.getModuleName(),
+ ExecutionStep.PHASE_START, "Flow " + flowName));
try {
String autoUpgrade = System
// TODO: re-throw exception ?
String msg = "Execution of flow " + flowName + " failed.";
log.error(msg, e);
- dispatchAddStep(new SlcExecutionStep(SlcExecutionStep.ERROR, msg
- + " " + e.getMessage()));
+ dispatchAddStep(new ExecutionStep(realizedFlow.getModuleName(),
+ ExecutionStep.ERROR, msg + " " + e.getMessage()));
processThread.notifyError();
} finally {
processThread.flowCompleted();
- dispatchAddStep(new SlcExecutionStep(SlcExecutionStep.PHASE_END,
- "Flow " + flowName));
+ dispatchAddStep(new ExecutionStep(realizedFlow.getModuleName(),
+ ExecutionStep.PHASE_END, "Flow " + flowName));
+ processDestructionCallbacks();
}
}
- private void dispatchAddStep(SlcExecutionStep step) {
+ private void dispatchAddStep(ExecutionStep step) {
processThread.getProcessThreadGroup().dispatchAddStep(step);
}
+ private synchronized void processDestructionCallbacks() {
+ for (int i = destructionCallbacks.size() - 1; i >= 0; i--) {
+ try {
+ destructionCallbacks.get(i).run();
+ } catch (Exception e) {
+ log.warn("Could not process destruction callback " + i
+ + " in thread " + getName(), e);
+ }
+ }
+ }
+
+ /**
+ * Gather object destruction callback to be called in reverse order at the
+ * end of the thread
+ */
+ synchronized void registerDestructionCallback(String name, Runnable callback) {
+ destructionCallbacks.add(callback);
+ }
+
+ protected ProcessThreadGroup getProcessThreadGroup() {
+ return processThread.getProcessThreadGroup();
+ }
+
+ public RealizedFlow getRealizedFlow() {
+ return realizedFlow;
+ }
+
}