| /**************************************************************************** |
| * Copyright (c) 2009 Composent, Inc. and others. |
| * |
| * This program and the accompanying materials are made |
| * available under the terms of the Eclipse Public License 2.0 |
| * which is available at https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * Contributors: |
| * Composent, Inc. - initial API and implementation |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| *****************************************************************************/ |
| package org.eclipse.ecf.examples.internal.eventadmin.app; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Properties; |
| |
| import org.eclipse.ecf.core.ContainerConnectException; |
| import org.eclipse.ecf.core.ContainerCreateException; |
| import org.eclipse.ecf.core.IContainer; |
| import org.eclipse.ecf.core.IContainerFactory; |
| import org.eclipse.ecf.core.IContainerManager; |
| import org.eclipse.ecf.core.identity.IDFactory; |
| import org.eclipse.ecf.core.sharedobject.ISharedObjectContainer; |
| import org.eclipse.ecf.core.sharedobject.SharedObjectAddException; |
| import org.eclipse.ecf.remoteservice.eventadmin.DistributedEventAdmin; |
| import org.eclipse.ecf.remoteservice.eventadmin.serialization.SerializationHandler; |
| import org.eclipse.equinox.app.IApplication; |
| import org.eclipse.equinox.app.IApplicationContext; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.service.event.EventConstants; |
| import org.osgi.util.tracker.ServiceTracker; |
| |
| public abstract class AbstractEventAdminApplication implements IApplication { |
| |
| public static final String DEFAULT_TOPIC = "defaultTopic"; |
| |
| protected BundleContext bundleContext; |
| |
| // The following must be set in processArgs |
| protected String containerType; |
| protected String containerId; |
| protected String targetId; |
| protected String[] topics = {DEFAULT_TOPIC, "anotherTopic", "anotherTopic/subTopic"}; |
| |
| protected ServiceTracker containerManagerTracker; |
| private final Object appLock = new Object(); |
| private boolean done = false; |
| protected DistributedEventAdmin eventAdminImpl; |
| protected ServiceRegistration eventAdminRegistration; |
| protected IContainer container; |
| |
| protected Object startup(IApplicationContext context) throws Exception { |
| // Get BundleContext |
| bundleContext = Activator.getContext(); |
| |
| // register a serialization handler for the topic that sends |
| // non-serializable event properties |
| bundleContext.registerService(SerializationHandler.class, |
| new ExampleSerializationHandler(DEFAULT_TOPIC), null); |
| |
| // register a serialization handler for the topic that sends |
| // non-serializable event properties |
| bundleContext.registerService(SerializationHandler.class, |
| new ExampleSerializationHandler(DEFAULT_TOPIC), null); |
| |
| // Process Arguments |
| final String[] args = mungeArguments((String[]) context.getArguments() |
| .get("application.args")); //$NON-NLS-1$ |
| processArgs(args); |
| |
| // Create event admin impl |
| eventAdminImpl = new DistributedEventAdmin(bundleContext); |
| |
| // Create, configure, and connect container |
| createConfigureAndConnectContainer(); |
| |
| // start event admin |
| eventAdminImpl.start(); |
| // register as EventAdmin service instance |
| Properties props = new Properties(); |
| props.put(EventConstants.EVENT_TOPIC, topics); |
| eventAdminRegistration = bundleContext.registerService( |
| "org.osgi.service.event.EventAdmin", eventAdminImpl, props); |
| |
| return IApplication.EXIT_OK; |
| } |
| |
| protected void shutdown() { |
| if (eventAdminRegistration != null) { |
| eventAdminRegistration.unregister(); |
| eventAdminRegistration = null; |
| } |
| if (container != null) { |
| container.dispose(); |
| getContainerManager().removeAllContainers(); |
| container = null; |
| } |
| if (containerManagerTracker != null) { |
| containerManagerTracker.close(); |
| containerManagerTracker = null; |
| } |
| synchronized (appLock) { |
| done = true; |
| appLock.notifyAll(); |
| } |
| bundleContext = null; |
| } |
| |
| protected Object run() { |
| waitForDone(); |
| return IApplication.EXIT_OK; |
| } |
| |
| public Object start(IApplicationContext context) throws Exception { |
| Object startupResult = startup(context); |
| if (!startupResult.equals(IApplication.EXIT_OK)) |
| return startupResult; |
| return run(); |
| } |
| |
| private String[] mungeArguments(String originalArgs[]) { |
| if (originalArgs == null) |
| return new String[0]; |
| final List l = new ArrayList(); |
| for (int i = 0; i < originalArgs.length; i++) |
| if (!originalArgs[i].equals("-pdelaunch")) //$NON-NLS-1$ |
| l.add(originalArgs[i]); |
| return (String[]) l.toArray(new String[] {}); |
| } |
| |
| protected void usage() { |
| System.out.println("Usage: eclipse.exe -application " |
| + usageApplicationId() + " " + usageParameters()); |
| } |
| |
| protected abstract String usageApplicationId(); |
| |
| protected abstract String usageParameters(); |
| |
| protected abstract void processArgs(String[] args); |
| |
| protected void waitForDone() { |
| // then just wait here |
| synchronized (appLock) { |
| while (!done) { |
| try { |
| appLock.wait(); |
| } catch (InterruptedException e) { |
| // do nothing |
| } |
| } |
| } |
| } |
| |
| public void stop() { |
| shutdown(); |
| } |
| |
| protected void createConfigureAndConnectContainer() |
| throws ContainerCreateException, SharedObjectAddException, |
| ContainerConnectException { |
| // get container factory and create container |
| IContainerFactory containerFactory = getContainerManager() |
| .getContainerFactory(); |
| container = (containerId == null) ? containerFactory |
| .createContainer(containerType) : containerFactory |
| .createContainer(containerType, new Object[] { containerId }); |
| |
| // Get socontainer |
| ISharedObjectContainer soContainer = (ISharedObjectContainer) container |
| .getAdapter(ISharedObjectContainer.class); |
| // Add to soContainer, with topic as name |
| soContainer.getSharedObjectManager().addSharedObject( |
| IDFactory.getDefault().createStringID(DEFAULT_TOPIC), eventAdminImpl, |
| null); |
| |
| // then connect to target Id |
| if (targetId != null) |
| container.connect(IDFactory.getDefault().createID( |
| container.getConnectNamespace(), targetId), null); |
| } |
| |
| protected IContainerManager getContainerManager() { |
| if (containerManagerTracker == null) { |
| containerManagerTracker = new ServiceTracker(bundleContext, |
| IContainerManager.class.getName(), null); |
| containerManagerTracker.open(); |
| } |
| return (IContainerManager) containerManagerTracker.getService(); |
| } |
| |
| } |