| /* |
| * 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.sling.commons.logservice.internal; |
| |
| import java.util.Enumeration; |
| |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.ServiceFactory; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.service.log.LogListener; |
| import org.osgi.service.log.LogReaderService; |
| |
| /** |
| * The <code>LogReaderServiceFactory</code> is the service factory for |
| * <code>LogReader</code> service instances supplied to bundles. |
| * <p> |
| * <blockquote> When a bundle which registers a LogListener object is stopped or |
| * otherwise releases the Log Reader Service, the Log Reader Service must remove |
| * all of the bundle's listeners.</blockquote> |
| */ |
| public class LogReaderServiceFactory implements ServiceFactory { |
| |
| private LogSupport logSupport; |
| |
| LogReaderServiceFactory(LogSupport logSupport) { |
| this.logSupport = logSupport; |
| } |
| |
| // ---------- ServiceFactory interface ------------------------------------ |
| |
| public Object getService(Bundle bundle, ServiceRegistration registration) { |
| return new LogReaderServiceImpl(bundle); |
| } |
| |
| public void ungetService(Bundle bundle, ServiceRegistration registration, |
| Object service) { |
| ((LogReaderServiceImpl) service).shutdown(); |
| } |
| |
| // --------- internal LogReaderService implementation ---------------------- |
| |
| private class LogReaderServiceImpl implements LogReaderService { |
| |
| private Bundle bundle; |
| |
| /* package */LogReaderServiceImpl(Bundle bundle) { |
| this.bundle = bundle; |
| } |
| |
| /* package */void shutdown() { |
| LogReaderServiceFactory.this.logSupport.removeLogListeners(this.bundle); |
| } |
| |
| public void addLogListener(LogListener listener) { |
| LogReaderServiceFactory.this.logSupport.addLogListener(this.bundle, |
| listener); |
| } |
| |
| public void removeLogListener(LogListener listener) { |
| LogReaderServiceFactory.this.logSupport.removeLogListener(listener); |
| } |
| |
| @SuppressWarnings("rawtypes") |
| public Enumeration getLog() { |
| return LogReaderServiceFactory.this.logSupport.getLog(); |
| } |
| } |
| |
| } |