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Diffstat (limited to 'dsf/org.eclipse.cdt.examples.dsf/src/org/eclipse/cdt/examples/dsf/timers/ServicesShutdownSequence.java')
-rw-r--r--dsf/org.eclipse.cdt.examples.dsf/src/org/eclipse/cdt/examples/dsf/timers/ServicesShutdownSequence.java100
1 files changed, 100 insertions, 0 deletions
diff --git a/dsf/org.eclipse.cdt.examples.dsf/src/org/eclipse/cdt/examples/dsf/timers/ServicesShutdownSequence.java b/dsf/org.eclipse.cdt.examples.dsf/src/org/eclipse/cdt/examples/dsf/timers/ServicesShutdownSequence.java
new file mode 100644
index 00000000000..cb8276c9a13
--- /dev/null
+++ b/dsf/org.eclipse.cdt.examples.dsf/src/org/eclipse/cdt/examples/dsf/timers/ServicesShutdownSequence.java
@@ -0,0 +1,100 @@
+/*******************************************************************************
+ * Copyright (c) 2006, 2008 Wind River Systems and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Wind River Systems - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.examples.dsf.timers;
+
+import org.eclipse.cdt.dsf.concurrent.IDsfStatusConstants;
+import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
+import org.eclipse.cdt.dsf.concurrent.Sequence;
+import org.eclipse.cdt.dsf.service.DsfServicesTracker;
+import org.eclipse.cdt.dsf.service.DsfSession;
+import org.eclipse.cdt.dsf.service.IDsfService;
+import org.eclipse.cdt.examples.dsf.DsfExamplesPlugin;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+
+/**
+ * Sequence that stops the services in the timers session.
+ */
+public class ServicesShutdownSequence extends Sequence {
+
+ // Session to that the services are running in.
+ final private DsfSession fSession;
+
+ // DSF Services is created as the first step of the sequence. It
+ // cannot be created by the constructor because it can only be called
+ // in the session thread.
+ DsfServicesTracker fTracker;
+
+ public ServicesShutdownSequence(DsfSession session) {
+ super(session.getExecutor());
+ fSession = session;
+ }
+
+ Step[] fSteps = new Step[] {
+ new Step() {
+ @Override
+ public void execute(RequestMonitor requestMonitor) {
+ fTracker = new DsfServicesTracker(DsfExamplesPlugin.getBundleContext(), fSession.getId());
+ requestMonitor.done();
+ }
+
+ @Override
+ public void rollBack(RequestMonitor requestMonitor) {
+ // Dispose the tracker in case shutdown sequence is aborted
+ // and is rolled back.
+ fTracker.dispose();
+ fTracker = null;
+ requestMonitor.done();
+ }
+ },
+ new Step() {
+ @Override
+ public void execute(RequestMonitor requestMonitor) {
+ shutdownService(AlarmService.class, requestMonitor);
+ }
+ },
+ new Step() {
+ @Override
+ public void execute(RequestMonitor requestMonitor) {
+ shutdownService(TimerService.class, requestMonitor);
+ }
+ },
+ new Step() {
+ @Override
+ public void execute(RequestMonitor requestMonitor) {
+ // Dispose the tracker after the services are shut down.
+ fTracker.dispose();
+ fTracker = null;
+ requestMonitor.done();
+ }
+ }
+ };
+
+ @Override
+ public Step[] getSteps() { return fSteps; }
+
+ // A convenience method that shuts down given service. Only service class
+ // is used to identify the service.
+ private <V extends IDsfService> void shutdownService(Class<V> clazz, RequestMonitor requestMonitor) {
+ IDsfService service = fTracker.getService(clazz);
+ if (service != null) {
+ service.shutdown(requestMonitor);
+ }
+ else {
+ requestMonitor.setStatus(new Status(
+ IStatus.ERROR, DsfExamplesPlugin.PLUGIN_ID,
+ IDsfStatusConstants.INTERNAL_ERROR,
+ "Service '" + clazz.getName() + "' not found.", null));
+ requestMonitor.done();
+ }
+ }
+
+}

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