| /* |
| * 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.log.logback.internal.config; |
| |
| import org.apache.sling.commons.log.logback.internal.LogConfigManager; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.ServiceFactory; |
| import org.osgi.framework.ServiceRegistration; |
| |
| public class ConfigurationServiceFactory implements ServiceFactory { |
| |
| private final LogConfigManager logConfigManager; |
| |
| private final String serviceClass; |
| |
| private int useCount; |
| |
| private Object service; |
| |
| public ConfigurationServiceFactory(final LogConfigManager logConfigManager, final String serviceClass) { |
| this.logConfigManager = logConfigManager; |
| this.serviceClass = serviceClass; |
| } |
| |
| public Object getService(Bundle bundle, ServiceRegistration registration) { |
| if (service == null) { |
| useCount = 1; |
| service = createInstance(); |
| } else { |
| useCount++; |
| } |
| return service; |
| } |
| |
| public void ungetService(Bundle bundle, ServiceRegistration registration, Object service) { |
| useCount--; |
| if (useCount <= 0) { |
| service = null; |
| } |
| } |
| |
| private Object createInstance() { |
| try { |
| Class<?> type = getClass().getClassLoader().loadClass(serviceClass); |
| Object instance = type.newInstance(); |
| if (instance instanceof LogConfigurator) { |
| ((LogConfigurator) instance).setLogConfigManager(logConfigManager); |
| } |
| return instance; |
| } catch (Throwable t) { |
| throw new RuntimeException("Failed to create " + serviceClass + " instance", t); |
| } |
| } |
| } |