| 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 java.util.ArrayList; |
| 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; |
| import org.apache.commons.lang.StringUtils; |
| import org.apache.maven.archiva.model.Plugin; |
| |
| /** |
| * 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.setArtifactId( merge(mainMetadata.getArtifactId(), sourceMetadata.getArtifactId())); |
| merged.setVersion( merge(mainMetadata.getVersion(), sourceMetadata.getVersion()) ); |
| merged.setReleasedVersion( merge( mainMetadata.getReleasedVersion(), sourceMetadata.getReleasedVersion() ) ); |
| merged.setSnapshotVersion( merge( mainMetadata.getSnapshotVersion(), sourceMetadata.getSnapshotVersion() ) ); |
| merged.setAvailableVersions( mergeAvailableVersions( mainMetadata.getAvailableVersions(), sourceMetadata.getAvailableVersions() ) ); |
| merged.setPlugins( mergePlugins( mainMetadata.getPlugins(), sourceMetadata.getPlugins() ) ); |
| |
| //Don't set if merge was not possible |
| long lastUpdated = mergeTimestamp( mainMetadata.getLastUpdated(), sourceMetadata.getLastUpdated()); |
| if (lastUpdated > -1) |
| { |
| merged.setLastUpdated( Long.toString(lastUpdated) ); |
| } |
| |
| return merged; |
| } |
| |
| private static boolean empty( String val ) |
| { |
| if ( val == null ) |
| { |
| return true; |
| } |
| |
| return ( val.trim().length() <= 0 ); |
| } |
| |
| private static long mergeTimestamp(String mainTimestamp, String sourceTimestamp) |
| { |
| if (sourceTimestamp == null && mainTimestamp != null) |
| { |
| return convertTimestampToLong(mainTimestamp); |
| } |
| |
| if (mainTimestamp == null && sourceTimestamp != null) |
| { |
| return convertTimestampToLong(sourceTimestamp); |
| } |
| |
| if (sourceTimestamp == null && mainTimestamp == null) |
| { |
| return -1; |
| } |
| |
| return mergeTimestamp(convertTimestampToLong(mainTimestamp), convertTimestampToLong(sourceTimestamp)); |
| } |
| |
| private static long mergeTimestamp(long mainTimestamp, long sourceTimestamp) |
| { |
| return Math.max( mainTimestamp, sourceTimestamp ); |
| } |
| |
| private static SnapshotVersion merge( SnapshotVersion mainSnapshotVersion, SnapshotVersion sourceSnapshotVersion ) |
| { |
| if ( sourceSnapshotVersion == null ) |
| { |
| return mainSnapshotVersion; |
| } |
| |
| if ( mainSnapshotVersion == null ) |
| { |
| return ArchivaModelCloner.clone( sourceSnapshotVersion ); |
| } |
| |
| SnapshotVersion merged = new SnapshotVersion(); |
| |
| long mainSnapshotLastUpdated = convertTimestampToLong(mainSnapshotVersion.getTimestamp()); |
| long sourceSnapshotLastUpdated = convertTimestampToLong(sourceSnapshotVersion.getTimestamp()); |
| |
| long lastUpdated = mergeTimestamp(mainSnapshotLastUpdated, sourceSnapshotLastUpdated); |
| |
| if (lastUpdated == mainSnapshotLastUpdated) |
| { |
| merged.setTimestamp(mainSnapshotVersion.getTimestamp()); |
| merged.setBuildNumber(mainSnapshotVersion.getBuildNumber()); |
| } |
| else |
| { |
| merged.setTimestamp(sourceSnapshotVersion.getTimestamp()); |
| merged.setBuildNumber(sourceSnapshotVersion.getBuildNumber()); |
| } |
| |
| return merged; |
| } |
| |
| private static long convertTimestampToLong(String timestamp) |
| { |
| if (timestamp == null) |
| { |
| return -1; |
| } |
| |
| return getLongFromTimestampSafely(StringUtils.replace(timestamp, ".", "")); |
| } |
| |
| private static long getLongFromTimestampSafely( String timestampString ) |
| { |
| try |
| { |
| return Long.parseLong(timestampString); |
| } |
| catch (NumberFormatException e) |
| { |
| return -1; |
| } |
| } |
| |
| private static String merge( String main, String source ) |
| { |
| if ( empty( main ) && !empty( source ) ) |
| { |
| return source; |
| } |
| |
| return main; |
| } |
| |
| private static List mergePlugins(List mainPlugins, List sourcePlugins) |
| { |
| if ( sourcePlugins == null ) |
| { |
| return mainPlugins; |
| } |
| |
| if ( mainPlugins == null ) |
| { |
| return clonePlugins( sourcePlugins ); |
| } |
| |
| List merged = clonePlugins( mainPlugins ); |
| |
| Iterator it = sourcePlugins.iterator(); |
| while ( it.hasNext() ) |
| { |
| Plugin plugin = (Plugin) it.next(); |
| if ( !merged.contains( plugin ) ) |
| { |
| merged.add( plugin ); |
| } |
| } |
| |
| return merged; |
| } |
| |
| /** |
| * Clones a list of plugins. |
| * |
| * This method exists because ArchivaModelCloner.clonePlugins() |
| * only works with artifact references. |
| * |
| * @param plugins |
| * @return list of cloned plugins |
| */ |
| private static List<Plugin> clonePlugins(List<Plugin> plugins) |
| { |
| if (plugins == null) |
| { |
| return null; |
| } |
| |
| ArrayList result = new ArrayList(); |
| |
| for (Plugin plugin : plugins) |
| { |
| Plugin clonedPlugin = new Plugin(); |
| clonedPlugin.setArtifactId(plugin.getArtifactId()); |
| clonedPlugin.setModelEncoding(plugin.getModelEncoding()); |
| clonedPlugin.setName(plugin.getName()); |
| clonedPlugin.setPrefix(plugin.getPrefix()); |
| result.add(plugin); |
| } |
| |
| return result; |
| } |
| |
| 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; |
| } |
| } |