001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020package org.apache.directory.api.ldap.codec.protocol.mina; 021 022 023import org.apache.directory.api.ldap.codec.api.LdapApiService; 024import org.osgi.framework.BundleActivator; 025import org.osgi.framework.BundleContext; 026import org.osgi.framework.ServiceReference; 027import org.osgi.framework.ServiceRegistration; 028import org.osgi.util.tracker.ServiceTracker; 029import org.osgi.util.tracker.ServiceTrackerCustomizer; 030 031 032/** 033 * The {@link org.osgi.framework.BundleActivator} for the codec. 034 * 035 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 036 */ 037public class LdapProtocolCodecActivator implements BundleActivator 038{ 039 040 private ServiceTracker<LdapApiService, LdapApiService> serviceTracker; 041 042 class LdapApiServiceTracker implements ServiceTrackerCustomizer<LdapApiService, LdapApiService> 043 { 044 private BundleContext bundleContext; 045 private ServiceRegistration<?> registration; 046 047 048 LdapApiServiceTracker( BundleContext context ) 049 { 050 this.bundleContext = context; 051 } 052 053 054 @Override 055 public LdapApiService addingService( ServiceReference<LdapApiService> reference ) 056 { 057 LdapApiService ldapApiService = bundleContext.getService( reference ); 058 LdapProtocolCodecFactory factory = new LdapProtocolCodecFactory( ldapApiService ); 059 registration = bundleContext.registerService( LdapProtocolCodecFactory.class.getName(), factory, null ); 060 ldapApiService.registerProtocolCodecFactory( factory ); 061 return ldapApiService; 062 } 063 064 065 @Override 066 public void modifiedService( ServiceReference<LdapApiService> reference, LdapApiService service ) 067 { 068 } 069 070 071 @Override 072 public void removedService( ServiceReference<LdapApiService> reference, LdapApiService service ) 073 { 074 registration.unregister(); 075 } 076 } 077 078 079 /** 080 * Create a new instance of a LdapProtocolCodecActivator 081 */ 082 public LdapProtocolCodecActivator() 083 { 084 } 085 086 087 /** 088 * {@inheritDoc} 089 */ 090 @Override 091 public void start( BundleContext bundleContext ) throws Exception 092 { 093 LdapApiServiceTracker ldapApiServiceTracker = new LdapApiServiceTracker( bundleContext ); 094 serviceTracker = new ServiceTracker<>( bundleContext, LdapApiService.class, 095 ldapApiServiceTracker ); 096 serviceTracker.open(); 097 } 098 099 100 /** 101 * {@inheritDoc} 102 */ 103 @Override 104 public void stop( BundleContext bundleContext ) throws Exception 105 { 106 serviceTracker.close(); 107 } 108}