+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * 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 java.util.Map;
-import org.argeo.slc.execution.ExecutionModulesListener;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.slc.execution.ExecutionContext;
+import org.argeo.slc.execution.ExecutionFlow;
+import org.argeo.slc.execution.ExecutionFlowDescriptorConverter;
import org.argeo.slc.execution.ExecutionModulesManager;
-import org.argeo.slc.process.SlcExecution;
-import org.argeo.slc.process.SlcExecutionNotifier;
+import org.argeo.slc.execution.RealizedFlow;
+/** Provides the base feature of an execution module manager. */
public abstract class AbstractExecutionModulesManager implements
ExecutionModulesManager {
- private List<SlcExecutionNotifier> slcExecutionNotifiers = new ArrayList<SlcExecutionNotifier>();
- private List<ExecutionModulesListener> executionModulesListeners = new ArrayList<ExecutionModulesListener>();
+ private final static Log log = LogFactory
+ .getLog(AbstractExecutionModulesManager.class);
- private ThreadGroup processesThreadGroup = new ThreadGroup("Processes");
+// private List<FilteredNotifier> filteredNotifiers = Collections
+// .synchronizedList(new ArrayList<FilteredNotifier>());
- public void process(SlcExecution slcExecution) {
- new ProcessThread(this, slcExecution).start();
- }
+ protected abstract ExecutionFlow findExecutionFlow(String moduleName,
+ String moduleVersion, String flowName);
- public void setSlcExecutionNotifiers(
- List<SlcExecutionNotifier> slcExecutionNotifiers) {
- this.slcExecutionNotifiers = slcExecutionNotifiers;
- }
+ protected abstract ExecutionContext findExecutionContext(String moduleName,
+ String moduleVersion);
- public List<SlcExecutionNotifier> getSlcExecutionNotifiers() {
- return slcExecutionNotifiers;
- }
+ protected abstract ExecutionFlowDescriptorConverter getExecutionFlowDescriptorConverter(
+ String moduleName, String moduleVersion);
- public ThreadGroup getProcessesThreadGroup() {
- return processesThreadGroup;
- }
+ public void execute(RealizedFlow realizedFlow) {
+ if (log.isTraceEnabled())
+ log.trace("Executing " + realizedFlow);
- public List<ExecutionModulesListener> getExecutionModulesListeners() {
- return executionModulesListeners;
- }
+ String moduleName = realizedFlow.getModuleName();
+ String moduleVersion = realizedFlow.getModuleVersion();
- public void setExecutionModulesListeners(
- List<ExecutionModulesListener> executionModulesListeners) {
- this.executionModulesListeners = executionModulesListeners;
+ Map<? extends String, ? extends Object> variablesToAdd = getExecutionFlowDescriptorConverter(
+ moduleName, moduleVersion).convertValues(
+ realizedFlow.getFlowDescriptor());
+ ExecutionContext executionContext = findExecutionContext(moduleName,
+ moduleVersion);
+ for (String key : variablesToAdd.keySet())
+ executionContext.setVariable(key, variablesToAdd.get(key));
+
+ ExecutionFlow flow = findExecutionFlow(moduleName, moduleVersion,
+ realizedFlow.getFlowDescriptor().getName());
+
+ //
+ // Actually runs the flow, IN THIS THREAD
+ //
+ flow.run();
+ //
+ //
+ //
}
+// public void dispatchUpdateStatus(ExecutionProcess process,
+// String oldStatus, String newStatus) {
+// // filtered notifiers
+// for (Iterator<FilteredNotifier> it = filteredNotifiers.iterator(); it
+// .hasNext();) {
+// FilteredNotifier filteredNotifier = it.next();
+// if (filteredNotifier.receiveFrom(process))
+// filteredNotifier.getNotifier().updateStatus(process, oldStatus,
+// newStatus);
+// }
+//
+// }
+
+// public void dispatchAddSteps(ExecutionProcess process,
+// List<ExecutionStep> steps) {
+// process.addSteps(steps);
+// for (Iterator<FilteredNotifier> it = filteredNotifiers.iterator(); it
+// .hasNext();) {
+// FilteredNotifier filteredNotifier = it.next();
+// if (filteredNotifier.receiveFrom(process))
+// filteredNotifier.getNotifier().addSteps(process, steps);
+// }
+// }
+
+// public void registerProcessNotifier(ExecutionProcessNotifier notifier,
+// Map<String, String> properties) {
+// filteredNotifiers.add(new FilteredNotifier(notifier, properties));
+// }
+//
+// public void unregisterProcessNotifier(ExecutionProcessNotifier notifier,
+// Map<String, String> properties) {
+// filteredNotifiers.remove(notifier);
+// }
+
+// protected class FilteredNotifier {
+// private final ExecutionProcessNotifier notifier;
+// private final String processId;
+//
+// public FilteredNotifier(ExecutionProcessNotifier notifier,
+// Map<String, String> properties) {
+// super();
+// this.notifier = notifier;
+// if (properties == null)
+// properties = new HashMap<String, String>();
+// if (properties.containsKey(SLC_PROCESS_ID))
+// processId = properties.get(SLC_PROCESS_ID);
+// else
+// processId = null;
+// }
+//
+// /**
+// * Whether event from this process should be received by this listener.
+// */
+// public Boolean receiveFrom(ExecutionProcess process) {
+// if (processId != null)
+// if (process.getUuid().equals(processId))
+// return true;
+// else
+// return false;
+// return true;
+// }
+//
+// @Override
+// public int hashCode() {
+// return notifier.hashCode();
+// }
+//
+// @Override
+// public boolean equals(Object obj) {
+// if (obj instanceof FilteredNotifier) {
+// FilteredNotifier fn = (FilteredNotifier) obj;
+// return notifier.equals(fn.notifier);
+// } else if (obj instanceof ExecutionProcessNotifier) {
+// ExecutionProcessNotifier epn = (ExecutionProcessNotifier) obj;
+// return notifier.equals(epn);
+// } else
+// return false;
+// }
+//
+// public ExecutionProcessNotifier getNotifier() {
+// return notifier;
+// }
+//
+// }
}