/*

  * Copyright 2004-2008 the Seasar Foundation and the Others.

  *

  * Licensed 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.seasar.uruma.rcp.core;

 import java.util.HashMap;

 import java.util.Map;

 import org.osgi.framework.Bundle;

 import org.osgi.framework.ServiceFactory;

 import org.osgi.framework.ServiceRegistration;

 import org.seasar.uruma.rcp.UrumaService;

 /**

  * {@link UrumaService} のための {@link ServiceFactory} です。

  * 

  * @author y-komori

  */

 public class UrumaServiceFactory implements ServiceFactory {

     protected static final Map<String, UrumaService> serviceMap = new HashMap<String, UrumaService>();

     UrumaServiceFactory() {

     }

     /*

      * @see org.osgi.framework.ServiceFactory#getService(org.osgi.framework.Bundle,

      *      org.osgi.framework.ServiceRegistration)

      */

     public Object getService(final Bundle bundle,

             final ServiceRegistration registration) {

         String symbolicName = bundle.getSymbolicName();

         UrumaService service = serviceMap.get(symbolicName);

         if (service == null) {

             service = new UrumaServiceImpl(bundle);

             serviceMap.put(symbolicName, service);

         }

         return service;

     }

     /*

      * @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) {

         String symbolicName = bundle.getSymbolicName();

         UrumaServiceImpl urumaService = (UrumaServiceImpl) serviceMap

                 .get(symbolicName);

         if (urumaService != null) {

             urumaService.destroy();

             serviceMap.remove(symbolicName);

         }

     }

 }