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/*******************************************************************************
* Copyright (c) 2010-2011 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.osgi.services.remoteserviceadmin;
import java.util.Dictionary;
import java.util.Properties;
import java.util.UUID;
import javax.xml.parsers.SAXParserFactory;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.ecf.core.IContainerManager;
import org.eclipse.ecf.core.util.LogHelper;
import org.eclipse.ecf.core.util.SystemLogService;
import org.eclipse.ecf.osgi.services.remoteserviceadmin.EndpointDescriptionAdvertiser;
import org.eclipse.ecf.osgi.services.remoteserviceadmin.EndpointDescriptionLocator;
import org.eclipse.ecf.osgi.services.remoteserviceadmin.IEndpointDescriptionAdvertiser;
import org.eclipse.ecf.osgi.services.remoteserviceadmin.RemoteServiceAdmin;
import org.eclipse.ecf.osgi.services.remoteserviceadmin.BasicTopologyManager;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;
import org.osgi.framework.ServiceFactory;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.log.LogService;
import org.osgi.util.tracker.ServiceTracker;
public class Activator implements BundleActivator {
public static final String PLUGIN_ID = "org.eclipse.ecf.osgi.services.remoteserviceadmin";
private static BundleContext context;
private static Activator instance;
static BundleContext getContext() {
return context;
}
public static Activator getDefault() {
return instance;
}
private ServiceRegistration remoteServiceAdminRegistration;
private EndpointDescriptionLocator endpointDescriptionLocator;
private EndpointDescriptionAdvertiser endpointDescriptionAdvertiser;
private ServiceRegistration endpointDescriptionAdvertiserRegistration;
private BasicTopologyManager basicTopologyManager;
/*
* (non-Javadoc)
*
* @see
* org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext
* )
*/
public void start(BundleContext bundleContext) throws Exception {
Activator.context = bundleContext;
Activator.instance = this;
startRemoteServiceAdmin();
endpointDescriptionLocator = new EndpointDescriptionLocator(context);
startEndpointDescriptionAdvertiser();
basicTopologyManager = new BasicTopologyManager(context);
// start topology manager first
basicTopologyManager.start();
// start endpointDescriptionLocator
endpointDescriptionLocator.start();
}
/*
* (non-Javadoc)
*
* @see
* org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
*/
public void stop(BundleContext bundleContext) throws Exception {
if (endpointDescriptionLocator != null) {
endpointDescriptionLocator.close();
endpointDescriptionLocator = null;
}
if (basicTopologyManager != null) {
basicTopologyManager.close();
basicTopologyManager = null;
}
stopRemoteServiceAdmin();
stopEndpointDescriptionAdvertiser();
stopSAXParserTracker();
stopLogServiceTracker();
stopContainerManagerTracker();
Activator.context = null;
Activator.instance = null;
}
private void startRemoteServiceAdmin() {
Properties rsaProps = new Properties();
rsaProps.put(RemoteServiceAdmin.SERVICE_PROP, new Boolean(true));
remoteServiceAdminRegistration = context.registerService(
org.osgi.service.remoteserviceadmin.RemoteServiceAdmin.class
.getName(), new ServiceFactory() {
public Object getService(Bundle bundle,
ServiceRegistration registration) {
return new RemoteServiceAdmin(bundle);
}
public void ungetService(Bundle bundle,
ServiceRegistration registration, Object service) {
if (service != null) ((RemoteServiceAdmin) service).close();
}
}, (Dictionary) rsaProps);
}
private void stopRemoteServiceAdmin() {
if (remoteServiceAdminRegistration != null) {
remoteServiceAdminRegistration.unregister();
remoteServiceAdminRegistration = null;
}
}
private void startEndpointDescriptionAdvertiser() {
final Properties properties = new Properties();
properties.put(Constants.SERVICE_RANKING,
new Integer(Integer.MIN_VALUE));
endpointDescriptionAdvertiser = new EndpointDescriptionAdvertiser(
endpointDescriptionLocator);
endpointDescriptionAdvertiserRegistration = getContext()
.registerService(
IEndpointDescriptionAdvertiser.class.getName(),
endpointDescriptionAdvertiser, (Dictionary) properties);
}
private void stopEndpointDescriptionAdvertiser() {
if (endpointDescriptionAdvertiserRegistration != null) {
endpointDescriptionAdvertiserRegistration.unregister();
endpointDescriptionAdvertiserRegistration = null;
}
if (endpointDescriptionAdvertiser != null) {
endpointDescriptionAdvertiser.close();
endpointDescriptionAdvertiser = null;
}
}
public String getFrameworkUUID() {
if (context == null)
return null;
// code get and set the framework uuid property as specified in
// r2.enterprise.pdf pg 297
synchronized ("org.osgi.framework.uuid") {
String result = context.getProperty("org.osgi.framework.uuid");
if (result == null) {
UUID newUUID = UUID.randomUUID();
result = newUUID.toString();
System.setProperty("org.osgi.framework.uuid",
newUUID.toString());
}
return result;
}
}
// Sax parser
private Object saxParserFactoryTrackerLock = new Object();
private ServiceTracker saxParserFactoryTracker;
public SAXParserFactory getSAXParserFactory() {
if (instance == null)
return null;
synchronized (saxParserFactoryTrackerLock) {
if (saxParserFactoryTracker == null) {
saxParserFactoryTracker = new ServiceTracker(context,
SAXParserFactory.class.getName(), null);
saxParserFactoryTracker.open();
}
return (SAXParserFactory) saxParserFactoryTracker.getService();
}
}
private void stopSAXParserTracker() {
synchronized (saxParserFactoryTrackerLock) {
if (saxParserFactoryTracker != null) {
saxParserFactoryTracker.close();
saxParserFactoryTracker = null;
}
}
}
// Logging
private ServiceTracker logServiceTracker = null;
private LogService logService = null;
private Object logServiceTrackerLock = new Object();
public LogService getLogService() {
if (context == null)
return null;
synchronized (logServiceTrackerLock) {
if (logServiceTracker == null) {
logServiceTracker = new ServiceTracker(context,
LogService.class.getName(), null);
logServiceTracker.open();
}
logService = (LogService) logServiceTracker.getService();
if (logService == null)
logService = new SystemLogService(PLUGIN_ID);
return logService;
}
}
public void log(IStatus status) {
if (logService == null)
logService = getLogService();
if (logService != null)
logService.log(null, LogHelper.getLogCode(status),
LogHelper.getLogMessage(status), status.getException());
}
public void log(ServiceReference sr, IStatus status) {
log(sr, LogHelper.getLogCode(status), LogHelper.getLogMessage(status),
status.getException());
}
public void log(ServiceReference sr, int level, String message, Throwable t) {
if (logService == null)
logService = getLogService();
if (logService != null)
logService.log(sr, level, message, t);
}
private void stopLogServiceTracker() {
synchronized (logServiceTrackerLock) {
if (logServiceTracker != null) {
logServiceTracker.close();
logServiceTracker = null;
logService = null;
}
}
}
private ServiceTracker containerManagerTracker;
public IContainerManager getContainerManager() {
if (containerManagerTracker == null) {
containerManagerTracker = new ServiceTracker(context,
IContainerManager.class.getName(), null);
containerManagerTracker.open();
}
return (IContainerManager) containerManagerTracker.getService();
}
private void stopContainerManagerTracker() {
if (containerManagerTracker != null) {
containerManagerTracker.close();
containerManagerTracker = null;
}
}
}
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