| /**************************************************************************** |
| * 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.remoteservices.hello.host; |
| |
| import java.util.Dictionary; |
| import java.util.Hashtable; |
| import java.util.Properties; |
| |
| import org.eclipse.ecf.examples.remoteservices.hello.IHello; |
| import org.eclipse.ecf.examples.remoteservices.hello.IHelloAsync; |
| import org.eclipse.ecf.examples.remoteservices.hello.impl.Hello; |
| import org.eclipse.ecf.osgi.services.distribution.IDistributionConstants; |
| import org.eclipse.equinox.app.IApplication; |
| import org.eclipse.equinox.app.IApplicationContext; |
| import org.eclipse.osgi.framework.console.CommandProvider; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceRegistration; |
| |
| public class HelloHostApplication implements IApplication, |
| IDistributionConstants { |
| |
| private static final String DEFAULT_CONTAINER_TYPE = "ecf.r_osgi.peer"; |
| public static final String DEFAULT_CONTAINER_ID = "r-osgi://localhost:9278"; |
| |
| private BundleContext bundleContext; |
| |
| private String containerType = DEFAULT_CONTAINER_TYPE; |
| private String containerId = DEFAULT_CONTAINER_ID; |
| |
| private final Object appLock = new Object(); |
| private boolean done = false; |
| |
| private ServiceRegistration helloRegistration; |
| private ServiceRegistration discoveryListenerRegistration; |
| private ServiceRegistration distributionListenerRegistration; |
| |
| public Object start(IApplicationContext appContext) throws Exception { |
| bundleContext = Activator.getContext(); |
| // Process Arguments |
| processArgs(appContext); |
| // Finally, register the actual remote service |
| registerHelloRemoteService(); |
| // Register console provider. This adds 'start' and 'stop' commands to |
| // the OSGI console |
| // so that the hello remote service can be started/stopped |
| registerConsoleProvider(); |
| // wait until stopped |
| waitForDone(); |
| return IApplication.EXIT_OK; |
| } |
| |
| void registerHelloRemoteService() { |
| // Setup properties for remote service distribution, as per OSGi 4.2 |
| // remote services |
| // specification (chap 13 in compendium spec) |
| Properties props = new Properties(); |
| // add OSGi service property indicated export of all interfaces exposed |
| // by service (wildcard) |
| props.put(IDistributionConstants.SERVICE_EXPORTED_INTERFACES, |
| IDistributionConstants.SERVICE_EXPORTED_INTERFACES_WILDCARD); |
| // add OSGi service property specifying config |
| props.put(IDistributionConstants.SERVICE_EXPORTED_CONFIGS, |
| containerType); |
| // add ECF service property specifying container factory args |
| props.put( |
| IDistributionConstants.SERVICE_EXPORTED_CONTAINER_FACTORY_ARGUMENTS, |
| containerId); |
| props.put("ecf.exported.async.objectClass",new String[] { IHelloAsync.class.getName() }); |
| // register remote service |
| helloRegistration = bundleContext.registerService( |
| IHello.class.getName(), new Hello(), props); |
| // tell everyone |
| System.out.println("Host: Hello Service Registered"); |
| } |
| |
| void unregisterHelloRemoteService() { |
| if (helloRegistration != null) { |
| helloRegistration.unregister(); |
| helloRegistration = null; |
| } |
| // tell everyone |
| System.out.println("Host: Hello Remote Service Unregistered"); |
| } |
| |
| public void stop() { |
| unregisterHelloRemoteService(); |
| if (discoveryListenerRegistration != null) { |
| discoveryListenerRegistration.unregister(); |
| discoveryListenerRegistration = null; |
| } |
| if (distributionListenerRegistration != null) { |
| distributionListenerRegistration.unregister(); |
| distributionListenerRegistration = null; |
| } |
| bundleContext = null; |
| synchronized (appLock) { |
| done = true; |
| appLock.notifyAll(); |
| } |
| } |
| |
| private void registerConsoleProvider() { |
| // Register the console hello start/stop command provider |
| HelloCommandProvider helloCommandProvider = new HelloCommandProvider(this); |
| Dictionary props = new Hashtable(); |
| props.put(org.osgi.framework.Constants.SERVICE_RANKING, new Integer( |
| Integer.MAX_VALUE - 100)); |
| bundleContext.registerService(CommandProvider.class.getName(), |
| helloCommandProvider, props); |
| } |
| |
| private void processArgs(IApplicationContext appContext) { |
| String[] originalArgs = (String[]) appContext.getArguments().get( |
| "application.args"); |
| if (originalArgs == null) |
| return; |
| for (int i = 0; i < originalArgs.length; i++) { |
| if (originalArgs[i].equals("-containerType")) { |
| containerType = originalArgs[i + 1]; |
| i++; |
| } else if (originalArgs[i].equals("-containerId")) { |
| containerId = originalArgs[i + 1]; |
| i++; |
| } |
| } |
| } |
| |
| private void waitForDone() { |
| // then just wait here |
| synchronized (appLock) { |
| while (!done) { |
| try { |
| appLock.wait(); |
| } catch (InterruptedException e) { |
| // do nothing |
| } |
| } |
| } |
| } |
| |
| } |