001    package org.apache.maven.project;
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 org.apache.maven.artifact.Artifact;
023    
024    /**
025     * This exception is thrown if an application attempts to attach
026     * two of the same artifacts to a single project.
027     *
028     * @author pgier
029     * @author jdcasey
030     * @todo Make this a checked exception, and modify the API of MavenProjectHelper.
031     * Currently, this modification would create compatibility problems for existing plugins.
032     */
033    public class DuplicateArtifactAttachmentException
034        extends RuntimeException
035    {
036    
037        private static final String DEFAULT_MESSAGE = "Duplicate artifact attachment detected.";
038    
039        private Artifact artifact;
040    
041        private final MavenProject project;
042    
043        public DuplicateArtifactAttachmentException( MavenProject project, Artifact artifact )
044        {
045            super( constructMessage( project, artifact ) );
046            this.project = project;
047            this.artifact = artifact;
048        }
049    
050        private static String constructMessage( MavenProject project, Artifact artifact )
051        {
052            return DEFAULT_MESSAGE + " (project: " + project.getId() + "; illegal attachment: " + artifact.getId() + ")";
053        }
054    
055        public MavenProject getProject()
056        {
057            return project;
058        }
059    
060        public Artifact getArtifact()
061        {
062            return artifact;
063        }
064    }