| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.felix.httplite.osgi; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| |
| import org.apache.felix.httplite.server.Server; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.ServiceFactory; |
| import org.osgi.framework.ServiceRegistration; |
| |
| /** |
| * HttpServiceFactory creates a separate HttpService instance for every requester, so that |
| * the requester (client) bundle has access to it's own class loader for getting resources. |
| * |
| */ |
| public class HttpServiceFactoryImpl implements ServiceFactory |
| { |
| /** |
| * Logger instance |
| */ |
| private final Logger m_logger; |
| /** |
| * Socket server reference |
| */ |
| private final Server m_server; |
| /** |
| * List of service registrations, both Resource and Servlet. |
| */ |
| private List m_registrations; |
| /** |
| * Map to store the servlet and resource registrations. |
| */ |
| private final HashMap m_servletMap; |
| |
| /** |
| * @param logger |
| * @param m_server |
| */ |
| public HttpServiceFactoryImpl(final Logger logger, final Server m_server) |
| { |
| this.m_logger = logger; |
| this.m_server = m_server; |
| this.m_servletMap = new HashMap(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.osgi.framework.ServiceFactory#getService(org.osgi.framework.Bundle, org.osgi.framework.ServiceRegistration) |
| */ |
| public Object getService(final Bundle bundle, final ServiceRegistration registration) |
| { |
| HttpServiceImpl httpService = null; |
| try |
| { |
| httpService = new HttpServiceImpl(bundle, m_server, m_logger, m_servletMap); |
| |
| if (m_server.getState() != Server.ACTIVE_STATE) |
| { |
| m_logger.log(Logger.LOG_INFO, "Starting http server."); |
| httpService.start(); |
| } |
| |
| if (m_registrations == null) |
| { |
| m_registrations = new ArrayList(); |
| } |
| |
| m_registrations.add(serializeRegistration(bundle, registration)); |
| } |
| catch (IOException e) |
| { |
| m_logger.log(Logger.LOG_ERROR, "Unable to create Http Service.", e); |
| return null; |
| } |
| |
| return httpService; |
| } |
| |
| /** |
| * Provide a unique string to represent a given registration. |
| * |
| * @param bundle |
| * @param registration |
| * @return |
| */ |
| private String serializeRegistration(final Bundle bundle, |
| final ServiceRegistration registration) |
| { |
| return registration.toString() + bundle.getBundleId(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.osgi.framework.ServiceFactory#ungetService(org.osgi.framework.Bundle, org.osgi.framework.ServiceRegistration, java.lang.Object) |
| */ |
| public void ungetService(final Bundle bundle, final ServiceRegistration registration, |
| final Object service) |
| { |
| if (m_registrations == null) |
| { |
| throw new IllegalStateException("m_registrations has not been initialized."); |
| } |
| |
| String key = serializeRegistration(bundle, registration); |
| |
| if (!m_registrations.contains(key)) |
| { |
| throw new IllegalStateException("Untracked service registration."); |
| } |
| |
| m_registrations.remove(key); |
| |
| if (m_registrations.size() == 0 && m_server.getState() == Server.ACTIVE_STATE) |
| { |
| try |
| { |
| m_logger.log(Logger.LOG_INFO, |
| "Stopping http server since no clients are registered."); |
| m_server.stop(); |
| } |
| catch (InterruptedException e) |
| { |
| return; |
| } |
| } |
| } |
| } |