| /**************************************************************************** |
| * Copyright (c) 2009 Composent, Inc. 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: |
| * Composent, Inc. - initial API and implementation |
| *****************************************************************************/ |
| package org.eclipse.ecf.internal.examples.datashare.app; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.ecf.core.ContainerConnectException; |
| 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.util.ECFException; |
| import org.eclipse.ecf.datashare.IChannel; |
| import org.eclipse.ecf.datashare.IChannelContainerAdapter; |
| import org.eclipse.ecf.datashare.IChannelListener; |
| import org.eclipse.equinox.app.IApplication; |
| import org.eclipse.equinox.app.IApplicationContext; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.util.tracker.ServiceTracker; |
| |
| public abstract class AbstractDatashareApplication implements IApplication { |
| |
| protected BundleContext bundleContext; |
| |
| protected ServiceTracker containerManagerTracker; |
| private final Object appLock = new Object(); |
| private boolean done = false; |
| |
| protected IContainer container; |
| // The following must be set in processArgs |
| protected String containerType; |
| protected String containerId; |
| protected String targetId; |
| |
| // Datashare adapter |
| protected IChannelContainerAdapter datashareAdapter; |
| // Test channel |
| protected IChannel testChannel; |
| |
| protected abstract IChannelListener createChannelListener(); |
| |
| protected abstract void processArgs(String[] args); |
| |
| protected abstract String usageApplicationId(); |
| |
| protected abstract String usageParameters(); |
| |
| public Object start(IApplicationContext context) throws Exception { |
| Object startupResult = startup(context); |
| if (!startupResult.equals(IApplication.EXIT_OK)) |
| return startupResult; |
| return run(); |
| } |
| |
| protected void createChannel() throws ECFException { |
| // Get datashare adapter from new container |
| datashareAdapter = (IChannelContainerAdapter) container |
| .getAdapter(IChannelContainerAdapter.class); |
| |
| // Create channel listener for channel to be created |
| IChannelListener channelListener = createChannelListener(); |
| // Create a channel with given channel listener |
| testChannel = datashareAdapter.createChannel(IDFactory.getDefault() |
| .createStringID(Activator.class.getName()), channelListener, |
| null); |
| } |
| |
| protected void createContainer() throws ECFException { |
| // get container factory and create container |
| IContainerFactory containerFactory = getContainerManager() |
| .getContainerFactory(); |
| // If the containerId is null, the id is *not* passed to the container |
| // factory |
| // If it is non-null (i.e. the server), then it's passed to the factory |
| container = (containerId == null) ? containerFactory |
| .createContainer(containerType) : containerFactory |
| .createContainer(containerType, new Object[] { containerId }); |
| |
| } |
| |
| protected void connectContainer() throws ContainerConnectException { |
| // then if targetId is non-null (client), connect to target Id |
| if (targetId != null) |
| container.connect(IDFactory.getDefault().createID( |
| container.getConnectNamespace(), targetId), null); |
| } |
| |
| protected Object startup(IApplicationContext context) throws Exception { |
| // Get BundleContext |
| bundleContext = Activator.getContext(); |
| // Process Arguments |
| final String[] args = mungeArguments((String[]) context.getArguments() |
| .get("application.args")); //$NON-NLS-1$ |
| processArgs(args); |
| |
| createContainer(); |
| |
| createChannel(); |
| |
| connectContainer(); |
| |
| return IApplication.EXIT_OK; |
| } |
| |
| 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 void waitForDone() { |
| // then just wait here |
| synchronized (appLock) { |
| while (!done) { |
| try { |
| appLock.wait(); |
| } catch (InterruptedException e) { |
| // do nothing |
| } |
| } |
| } |
| } |
| |
| public void stop() { |
| shutdown(); |
| } |
| |
| protected void shutdown() { |
| if (datashareAdapter != null) { |
| datashareAdapter.removeChannel(testChannel.getID()); |
| testChannel = null; |
| datashareAdapter = 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; |
| } |
| |
| protected IContainerManager getContainerManager() { |
| if (containerManagerTracker == null) { |
| containerManagerTracker = new ServiceTracker(bundleContext, |
| IContainerManager.class.getName(), null); |
| containerManagerTracker.open(); |
| } |
| return (IContainerManager) containerManagerTracker.getService(); |
| } |
| |
| } |