| package org.apache.maven.archiva.repository.metadata; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.apache.maven.archiva.model.ArchivaModelCloner; |
| import org.apache.maven.archiva.model.ArchivaRepositoryMetadata; |
| import org.apache.maven.archiva.model.SnapshotVersion; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * RepositoryMetadataMerge |
| * |
| * @author <a href="mailto:joakime@apache.org">Joakim Erdfelt</a> |
| * @version $Id$ |
| */ |
| public class RepositoryMetadataMerge |
| { |
| public static ArchivaRepositoryMetadata merge( final ArchivaRepositoryMetadata mainMetadata, |
| final ArchivaRepositoryMetadata sourceMetadata ) |
| throws RepositoryMetadataException |
| { |
| if ( mainMetadata == null ) |
| { |
| throw new RepositoryMetadataException( "Cannot merge a null main project." ); |
| } |
| |
| if ( sourceMetadata == null ) |
| { |
| throw new RepositoryMetadataException( "Cannot copy to a null parent project." ); |
| } |
| |
| ArchivaRepositoryMetadata merged = new ArchivaRepositoryMetadata(); |
| |
| merged.setGroupId( merge( mainMetadata.getGroupId(), sourceMetadata.getGroupId() ) ); |
| |
| merged.setReleasedVersion( merge( mainMetadata.getReleasedVersion(), sourceMetadata.getReleasedVersion() ) ); |
| merged.setSnapshotVersion( merge( mainMetadata.getSnapshotVersion(), sourceMetadata.getSnapshotVersion() ) ); |
| merged.setLastUpdated( merge( mainMetadata.getLastUpdated(), sourceMetadata.getLastUpdated() ) ); |
| merged.setAvailableVersions( mergeAvailableVersions( mainMetadata.getAvailableVersions(), sourceMetadata |
| .getAvailableVersions() ) ); |
| |
| return merged; |
| } |
| |
| private static boolean empty( String val ) |
| { |
| if ( val == null ) |
| { |
| return true; |
| } |
| |
| return ( val.trim().length() <= 0 ); |
| } |
| |
| private static SnapshotVersion merge( SnapshotVersion mainSnapshotVersion, SnapshotVersion sourceSnapshotVersion ) |
| { |
| if ( sourceSnapshotVersion == null ) |
| { |
| return mainSnapshotVersion; |
| } |
| |
| if ( mainSnapshotVersion == null ) |
| { |
| return ArchivaModelCloner.clone( sourceSnapshotVersion ); |
| } |
| |
| SnapshotVersion merged = new SnapshotVersion(); |
| |
| merged.setTimestamp( merge( mainSnapshotVersion.getTimestamp(), sourceSnapshotVersion.getTimestamp() ) ); |
| merged |
| .setBuildNumber( Math.max( mainSnapshotVersion.getBuildNumber(), sourceSnapshotVersion.getBuildNumber() ) ); |
| |
| return merged; |
| } |
| |
| private static String merge( String main, String source ) |
| { |
| if ( empty( main ) && !empty( source ) ) |
| { |
| return source; |
| } |
| |
| return main; |
| } |
| |
| private static List mergeAvailableVersions( List mainAvailableVersions, List sourceAvailableVersions ) |
| { |
| if ( sourceAvailableVersions == null ) |
| { |
| return mainAvailableVersions; |
| } |
| |
| if ( mainAvailableVersions == null ) |
| { |
| return ArchivaModelCloner.cloneAvailableVersions( sourceAvailableVersions ); |
| } |
| |
| List merged = ArchivaModelCloner.cloneAvailableVersions( mainAvailableVersions ); |
| |
| Iterator it = sourceAvailableVersions.iterator(); |
| while ( it.hasNext() ) |
| { |
| String sourceVersion = (String) it.next(); |
| if ( !merged.contains( sourceVersion ) ) |
| { |
| merged.add( sourceVersion ); |
| } |
| } |
| |
| return merged; |
| } |
| } |