| /* |
| * 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.dependencymanager.samples.compositefactory; |
| |
| import java.util.Dictionary; |
| |
| /** |
| * Pojo used to create all the objects composition used to implements the "Provider" Service. |
| * The manager is using a Configuration injected by Config Admin, in order to configure the |
| * various objects being part of the "Provider" service implementation. |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class CompositionManager { |
| private ProviderParticipant1 m_participant1; |
| private ProviderParticipant2 m_participant2; |
| private ProviderImpl m_providerImpl; |
| @SuppressWarnings("unused") |
| private Dictionary<String, String> m_conf; |
| |
| public void updated(Dictionary<String, String> conf) throws Exception { |
| // validate configuration and throw an exception if the properties are invalid |
| m_conf = conf; |
| } |
| |
| /** |
| * Builds the composition of objects used to implement the "Provider" service. |
| * The Configuration injected by Config Admin will be used to configure the components |
| * @return The "main" object providing the "Provider" service. |
| */ |
| Object create() { |
| // Here, we can instantiate our objects composition and configure them using the injected Configuration ... |
| // Notice that we can also instantiate some different implementation objects, based on the what we find |
| // from the configuration. |
| m_participant1 = new ProviderParticipant1(); // possibly configure this object using our configuration |
| m_participant2 = new ProviderParticipant2(); // possibly configure this object using our configuration |
| m_providerImpl = new ProviderImpl(m_participant1, m_participant2); |
| return m_providerImpl; // Main object implementing the Provider service |
| } |
| |
| Object[] getComposition() { |
| return new Object[] { m_providerImpl, m_participant1, m_participant2 }; |
| } |
| } |