1 package org.apache.maven.plugin.ear.util; 2 3 /* 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 import java.util.Set; 23 import java.util.TreeSet; 24 25 import org.apache.maven.artifact.Artifact; 26 27 /** 28 * An artifact repository used to resolve {@link org.apache.maven.plugin.ear.EarModule}. 29 * 30 * @author <a href="snicoll@apache.org">Stephane Nicoll</a> 31 * @version $Id: ArtifactRepository.java 1228846 2012-01-08 13:53:34Z rfscholte $ 32 */ 33 public class ArtifactRepository 34 { 35 private final Set<Artifact> artifacts; 36 37 private final String mainArtifactId; 38 39 private final ArtifactTypeMappingService artifactTypeMappingService; 40 41 /** 42 * Creates a new repository wih the specified artifacts. 43 * 44 * @param artifacts the artifacts 45 * @param mainArtifactId the id to use for the main artifact (no classifier) 46 * @param artifactTypeMappingService 47 */ 48 public ArtifactRepository( Set<Artifact> artifacts, String mainArtifactId, 49 ArtifactTypeMappingService artifactTypeMappingService ) 50 { 51 this.artifacts = artifacts; 52 this.mainArtifactId = mainArtifactId; 53 this.artifactTypeMappingService = artifactTypeMappingService; 54 } 55 56 /** 57 * Returns the artifact with the specified parameters. 58 * <p/> 59 * If the artifact is classified and is the only one with the specified 60 * groupI, artifactId and type, it will be returned. 61 * <p/> 62 * If the artifact is classified and is not the only one with the specified 63 * groupI, artifactId and type, it returns null. 64 * <p/> 65 * If the artifact is not found, it returns null. 66 * 67 * @param groupId the group id 68 * @param artifactId the artifact id 69 * @param type the type 70 * @param classifier the classifier 71 * @return the artifact or null if no artifact were found 72 */ 73 public Artifact getUniqueArtifact( String groupId, String artifactId, String type, String classifier ) 74 { 75 final Set<Artifact> candidates = getArtifacts( groupId, artifactId, type ); 76 if ( candidates.size() == 0 ) 77 { 78 return null; 79 } 80 else if ( candidates.size() == 1 && classifier == null ) 81 { 82 return candidates.iterator().next(); 83 } 84 else if ( classifier != null ) 85 { 86 for ( Artifact a : candidates ) 87 { 88 if ( a.getClassifier() == null && classifier.equals( mainArtifactId ) ) 89 { 90 return a; 91 } 92 else if ( classifier.equals( a.getClassifier() ) ) 93 { 94 return a; 95 } 96 } 97 } 98 // All other cases, classifier is null and more than one candidate ; artifact not found 99 return null; 100 } 101 102 /** 103 * Returns the artifact with the specified parameters. 104 * <p/> 105 * If the artifact is classified and is the only one with the specified 106 * groupI, artifactId and type, it will be returned. 107 * <p/> 108 * If the artifact is classified and is not the only one with the specified 109 * groupI, artifactId and type, it returns null. 110 * <p/> 111 * If the artifact is not found, it returns null. 112 * 113 * @param groupId the group id 114 * @param artifactId the artifact id 115 * @param type the type 116 * @return the artifact or null if no artifact were found 117 */ 118 public Artifact getUniqueArtifact( String groupId, String artifactId, String type ) 119 { 120 return getUniqueArtifact( groupId, artifactId, type, null ); 121 } 122 123 /** 124 * Returns the artifacts with the specified parameters. 125 * 126 * @param groupId the group id 127 * @param artifactId the artifact id 128 * @param type the type 129 * @return the artifacts or an empty set if no artifact were found 130 */ 131 public Set<Artifact> getArtifacts( String groupId, String artifactId, String type ) 132 { 133 final Set<Artifact> result = new TreeSet<Artifact>(); 134 for ( Artifact a : artifacts ) 135 { 136 // If the groupId, the artifactId and if the 137 // artifact's type is known, then we have found a candidate. 138 if ( a.getGroupId().equals( groupId ) && a.getArtifactId().equals( artifactId ) 139 && artifactTypeMappingService.isMappedToType( type, a.getType() ) ) 140 { 141 result.add( a ); 142 143 } 144 } 145 return result; 146 } 147 }