001 package org.apache.maven.model.composition; 002 003 /* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022 import java.util.ArrayList; 023 import java.util.LinkedHashMap; 024 import java.util.List; 025 import java.util.Map; 026 027 import org.apache.maven.model.Dependency; 028 import org.apache.maven.model.DependencyManagement; 029 import org.apache.maven.model.Model; 030 import org.apache.maven.model.building.ModelBuildingRequest; 031 import org.apache.maven.model.building.ModelProblemCollector; 032 import org.codehaus.plexus.component.annotations.Component; 033 034 /** 035 * Handles the import of dependency management from other models into the target model. 036 * 037 * @author Benjamin Bentmann 038 */ 039 @Component( role = DependencyManagementImporter.class ) 040 public class DefaultDependencyManagementImporter 041 implements DependencyManagementImporter 042 { 043 044 public void importManagement( Model target, List<? extends DependencyManagement> sources, 045 ModelBuildingRequest request, ModelProblemCollector problems ) 046 { 047 if ( sources != null && !sources.isEmpty() ) 048 { 049 Map<String, Dependency> dependencies = new LinkedHashMap<String, Dependency>(); 050 051 DependencyManagement depMngt = target.getDependencyManagement(); 052 053 if ( depMngt != null ) 054 { 055 for ( Dependency dependency : depMngt.getDependencies() ) 056 { 057 dependencies.put( dependency.getManagementKey(), dependency ); 058 } 059 } 060 else 061 { 062 depMngt = new DependencyManagement(); 063 target.setDependencyManagement( depMngt ); 064 } 065 066 for ( DependencyManagement source : sources ) 067 { 068 for ( Dependency dependency : source.getDependencies() ) 069 { 070 String key = dependency.getManagementKey(); 071 if ( !dependencies.containsKey( key ) ) 072 { 073 dependencies.put( key, dependency ); 074 } 075 } 076 } 077 078 depMngt.setDependencies( new ArrayList<Dependency>( dependencies.values() ) ); 079 } 080 } 081 082 }