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/*******************************************************************************
* Copyright (c) 2005, 2011 Cognos Incorporated, IBM Corporation 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:
* Cognos Incorporated - initial API and implementation
* IBM Corporation - bug fixes and enhancements
*******************************************************************************/
package org.eclipse.equinox.http.servlet.internal;
import java.util.*;
import javax.servlet.ServletConfig;
import org.eclipse.equinox.http.servlet.ExtendedHttpService;
import org.osgi.framework.*;
import org.osgi.service.http.HttpService;
public class Activator implements BundleActivator {
private static final String DEFAULT_SERVICE_DESCRIPTION = "Equinox Servlet Bridge"; //$NON-NLS-1$
private static final String DEFAULT_SERVICE_VENDOR = "Eclipse.org"; //$NON-NLS-1$
private static final String[] HTTP_SERVICES_CLASSES = new String[] {HttpService.class.getName(), ExtendedHttpService.class.getName()};
private static BundleContext context;
private static Map serviceRegistrations = new HashMap();
public void start(BundleContext bundleContext) throws Exception {
startHttpServiceProxy(bundleContext);
}
public void stop(BundleContext bundleContext) throws Exception {
stopHttpServiceProxy(bundleContext);
}
private static synchronized void startHttpServiceProxy(BundleContext bundleContext) {
context = bundleContext;
Object[] proxyServlets = serviceRegistrations.keySet().toArray();
for (int i = 0; i < proxyServlets.length; ++i) {
ServiceRegistration registration = registerHttpService((ProxyServlet) proxyServlets[i]);
serviceRegistrations.put(proxyServlets[i], registration);
}
}
private static synchronized void stopHttpServiceProxy(BundleContext bundleContext) {
Object[] proxyServlets = serviceRegistrations.keySet().toArray();
for (int i = 0; i < proxyServlets.length; ++i) {
ServiceRegistration registration = (ServiceRegistration) serviceRegistrations.put(proxyServlets[i], null);
registration.unregister();
}
serviceRegistrations.clear();
context = null;
}
static synchronized void addProxyServlet(ProxyServlet proxyServlet) {
ServiceRegistration registration = null;
if (context != null)
registration = registerHttpService(proxyServlet);
serviceRegistrations.put(proxyServlet, registration);
}
private static ServiceRegistration registerHttpService(ProxyServlet proxyServlet) {
HttpServiceFactory factory = new HttpServiceFactory(proxyServlet);
Dictionary serviceProperties = new Hashtable(2);
ServletConfig config = proxyServlet.getServletConfig();
Enumeration initparameterNames = config.getInitParameterNames();
while (initparameterNames.hasMoreElements()) {
String name = (String) initparameterNames.nextElement();
serviceProperties.put(name, config.getInitParameter(name));
}
if (serviceProperties.get(Constants.SERVICE_VENDOR) == null)
serviceProperties.put(Constants.SERVICE_VENDOR, DEFAULT_SERVICE_VENDOR);
if (serviceProperties.get(Constants.SERVICE_DESCRIPTION) == null)
serviceProperties.put(Constants.SERVICE_DESCRIPTION, DEFAULT_SERVICE_DESCRIPTION);
return context.registerService(HTTP_SERVICES_CLASSES, factory, serviceProperties);
}
static synchronized void removeProxyServlet(ProxyServlet proxyServlet) {
ServiceRegistration registration = (ServiceRegistration) serviceRegistrations.remove(proxyServlet);
if (registration != null)
registration.unregister();
}
}
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