| /* |
| * 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.dm.runtime; |
| |
| import java.util.Dictionary; |
| import java.util.List; |
| |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.DependencyManager; |
| import org.osgi.framework.Bundle; |
| |
| /** |
| * Class used to build an aspect service using metadata found from DependencyManager runtime |
| * meta-inf descriptor. |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class AspectServiceBuilder extends AbstractBuilder |
| { |
| private final static String TYPE = "AspectService"; |
| |
| @Override |
| public String getType() |
| { |
| return TYPE; |
| } |
| |
| @Override |
| public void build(MetaData srvMeta, List<MetaData> depsMeta, Bundle b, DependencyManager dm) |
| throws Exception |
| { |
| Log.instance().info("AspectServiceBuilder: building aspect service: %s with dependencies %s", |
| srvMeta, |
| depsMeta); |
| |
| Class<?> serviceInterface = b.loadClass(srvMeta.getString(Params.service)); |
| String serviceFilter = srvMeta.getString(Params.filter, null); |
| Dictionary<String, Object> aspectProperties = srvMeta.getDictionary(Params.properties, null); |
| int ranking = srvMeta.getInt(Params.ranking, 1); |
| String implClassName = srvMeta.getString(Params.impl); |
| Object implClass = b.loadClass(implClassName); |
| String field = srvMeta.getString(Params.field, null); |
| String added = srvMeta.getString(Params.added, null); |
| String changed = srvMeta.getString(Params.changed, null); |
| String removed = srvMeta.getString(Params.removed, null); |
| String swap = srvMeta.getString(Params.swap, null); |
| |
| if (field != null && (added != null || changed != null || removed != null || swap != null)) |
| { |
| throw new IllegalArgumentException("autoconfig field " + field + " can't be defined with both added/changed/removed/swap calllbacks"); |
| } |
| |
| Component c; |
| if (field != null) |
| { |
| c = dm.createAspectService(serviceInterface, serviceFilter, ranking, field) |
| .setServiceProperties(aspectProperties); |
| } |
| else |
| { |
| if (added != null || changed != null || removed != null || swap != null) |
| { |
| c = dm.createAspectService(serviceInterface, serviceFilter, ranking, added, changed, removed, swap) |
| .setServiceProperties(aspectProperties); |
| } |
| else |
| { |
| c = dm.createAspectService(serviceInterface, serviceFilter, ranking) |
| .setServiceProperties(aspectProperties); |
| } |
| |
| } |
| |
| setCommonServiceParams(c, srvMeta); |
| String factoryMethod = srvMeta.getString(Params.factoryMethod, null); |
| if (factoryMethod == null) |
| { |
| c.setImplementation(implClass); |
| } |
| else |
| { |
| c.setFactory(implClass, factoryMethod); |
| } |
| |
| c.setComposition(srvMeta.getString(Params.composition, null)); |
| ServiceLifecycleHandler lfcleHandler = new ServiceLifecycleHandler(c, b, dm, srvMeta, depsMeta); |
| // The dependencies will be plugged by our lifecycle handler. |
| c.setCallbacks(lfcleHandler, "init", "start", "stop", "destroy"); |
| // Adds dependencies (except named dependencies, which are managed by the lifecycle |
| // handler). |
| addUnamedDependencies(b, dm, c, srvMeta, depsMeta); |
| dm.add(c); |
| } |
| } |