| /* |
| * 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.io.BufferedReader; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.felix.dm.DependencyManager; |
| import org.json.JSONObject; |
| import org.osgi.framework.Bundle; |
| |
| /** |
| * This class parses files generated in META-INF/*.dm by the DependencyManager bnd plugin. |
| * Each descriptor contains a JSON definition of a Service, along with its corresponding |
| * dependencies. |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class DescriptorParser |
| { |
| private Map<String, AbstractBuilder> m_builders = new HashMap<String, AbstractBuilder>(); |
| |
| public void addBuilder(AbstractBuilder sb) |
| { |
| m_builders.put(sb.getType(), sb); |
| } |
| |
| public void parse(BufferedReader reader, Bundle b, DependencyManager dm) throws Exception |
| { |
| String line; |
| |
| // The first line is a Service Component (a Service, an Aspect Service, etc ...) |
| line = reader.readLine(); |
| Log.instance().debug("DescriptorParser: parsing service %s", line); |
| JSONObject json = new JSONObject(line); |
| JSONMetaData serviceMetaData = new JSONMetaData(json); |
| |
| String type = (String) json.get("type"); |
| if (type == null) |
| { |
| throw new IllegalArgumentException("Invalid descriptor" |
| + ": no \"type\" parameter found in first line"); |
| } |
| |
| AbstractBuilder builder = m_builders.get(type); |
| if (builder == null) |
| { |
| throw new IllegalArgumentException("Invalid descriptor" |
| + ": invalid \"type\" parameter found in first line"); |
| } |
| |
| // Parse the rest of the lines (dependencies) |
| List<MetaData> serviceDependencies = new ArrayList<MetaData>(); |
| while ((line = reader.readLine()) != null) |
| { |
| Log.instance().debug("Parsing dependency %s", line); |
| JSONObject dep = new JSONObject(line); |
| serviceDependencies.add(new JSONMetaData(dep)); |
| } |
| |
| // and Invoke the builder |
| builder.build(serviceMetaData, serviceDependencies, b, dm); |
| } |
| } |