/*
* Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) 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:
* bstefanescu
*/
package org.eclipse.ecr.web.jaxrs;
import javax.ws.rs.ext.RuntimeDelegate;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.ecr.web.jaxrs.servlet.config.ServletRegistry;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;
import org.osgi.framework.ServiceReference;
import org.osgi.service.http.HttpService;
import org.osgi.service.packageadmin.PackageAdmin;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
import com.sun.jersey.server.impl.provider.RuntimeDelegateImpl;
/**
* @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
*
*/
public class Activator implements BundleActivator, ServiceTrackerCustomizer {
private static final Log log = LogFactory.getLog(Activator.class);
private static Activator instance;
public static Activator getInstance() {
return instance;
}
protected ServiceTracker httpServiceTracker;
protected BundleContext context;
protected ServiceReference pkgAdm;
@Override
public void start(BundleContext context) throws Exception {
// we need to set by hand the runtime delegate to avoid letting ServiceFinder discover the implementation
// which is not working in an OSGi environment
RuntimeDelegate.setInstance(new RuntimeDelegateImpl());
instance = this;
this.context = context;
pkgAdm = context.getServiceReference(PackageAdmin.class.getName());
//TODO workaround to disable service tracker on regular Nuxeo distribs until finding a better solution
if (!"Nuxeo".equals(context.getProperty(Constants.FRAMEWORK_VENDOR))) {
httpServiceTracker = new ServiceTracker(context, HttpService.class.getName(), this);
httpServiceTracker.open();
}
ApplicationManager.getInstance().start(context);
}
@Override
public void stop(BundleContext context) throws Exception {
ApplicationManager.getInstance().stop(context);
if (httpServiceTracker != null) {
httpServiceTracker.close();
httpServiceTracker = null;
}
ServletRegistry.dispose();
instance = null;
context.ungetService(pkgAdm);
pkgAdm = null;
this.context = null;
}
public BundleContext getContext() {
return context;
}
public PackageAdmin getPackageAdmin() {
return (PackageAdmin)context.getService(pkgAdm);
}
@Override
public Object addingService(ServiceReference reference) {
Object service = context.getService(reference);
try {
if (service instanceof HttpService) {
ServletRegistry.getInstance().initHttpService((HttpService)service);
}
} catch (Exception e) {
throw new RuntimeException("Failed to initialize http service", e);
}
return service;
}
@Override
public void removedService(ServiceReference reference, Object service) {
try {
if (ServletRegistry.getInstance().getHttpService() == service) {
ServletRegistry.getInstance().initHttpService(null);
}
} catch (Exception e) {
log.error("Failed to remove http service", e);
} finally {
context.ungetService(reference);
}
}
@Override
public void modifiedService(ServiceReference reference, Object service) {
try {
if (ServletRegistry.getInstance().getHttpService() == service) {
ServletRegistry.getInstance().initHttpService(null);
ServletRegistry.getInstance().initHttpService((HttpService)service);
}
} catch (Exception e) {
log.error("Failed to update http service", e);
}
}
}