001    package org.apache.archiva.model;
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.Enumeration;
024    import java.util.List;
025    import java.util.Properties;
026    
027    /**
028     * Utility methods for cloning various Archiva Model objects.
029     *
030     *
031     */
032    public class ArchivaModelCloner
033    {
034    
035        public static ArtifactReference clone( ArtifactReference artifactReference )
036        {
037            if ( artifactReference == null )
038            {
039                return null;
040            }
041    
042            ArtifactReference cloned = new ArtifactReference();
043    
044            cloned.setGroupId( artifactReference.getGroupId() );
045            cloned.setArtifactId( artifactReference.getArtifactId() );
046            cloned.setVersion( artifactReference.getVersion() );
047            cloned.setClassifier( artifactReference.getClassifier() );
048            cloned.setType( artifactReference.getType() );
049    
050            return cloned;
051        }
052    
053        @SuppressWarnings( "unchecked" )
054        public static Properties clone( Properties properties )
055        {
056            if ( properties == null )
057            {
058                return null;
059            }
060    
061            Properties cloned = new Properties();
062    
063            Enumeration<String> keys = (Enumeration<String>) properties.propertyNames();
064            while ( keys.hasMoreElements() )
065            {
066                String key = (String) keys.nextElement();
067                String value = properties.getProperty( key );
068                cloned.setProperty( key, value );
069            }
070    
071            return cloned;
072        }
073    
074        public static SnapshotVersion clone( SnapshotVersion snapshotVersion )
075        {
076            if ( snapshotVersion == null )
077            {
078                return null;
079            }
080    
081            SnapshotVersion cloned = new SnapshotVersion();
082    
083            cloned.setTimestamp( snapshotVersion.getTimestamp() );
084            cloned.setBuildNumber( snapshotVersion.getBuildNumber() );
085    
086            return cloned;
087        }
088    
089        public static VersionedReference clone( VersionedReference versionedReference )
090        {
091            if ( versionedReference == null )
092            {
093                return null;
094            }
095    
096            VersionedReference cloned = new VersionedReference();
097    
098            cloned.setGroupId( versionedReference.getGroupId() );
099            cloned.setArtifactId( versionedReference.getArtifactId() );
100            cloned.setVersion( versionedReference.getVersion() );
101    
102            return cloned;
103        }
104    
105        public static List<ArtifactReference> cloneArtifactReferences( List<ArtifactReference> artifactReferenceList )
106        {
107            if ( artifactReferenceList == null )
108            {
109                return null;
110            }
111    
112            List<ArtifactReference> ret = new ArrayList<ArtifactReference>( artifactReferenceList.size() );
113    
114            for ( ArtifactReference ref : artifactReferenceList )
115            {
116                ret.add( clone( ref ) );
117            }
118    
119            return ret;
120        }
121    
122        private static List<String> cloneSimpleStringList( List<String> simple )
123        {
124            if ( simple == null )
125            {
126                return null;
127            }
128    
129            List<String> ret = new ArrayList<String>( simple.size() );
130    
131            for ( String txt : simple )
132            {
133                ret.add( txt );
134            }
135    
136            return ret;
137        }
138    
139        public static List<String> cloneAvailableVersions( List<String> availableVersions )
140        {
141            return cloneSimpleStringList( availableVersions );
142        }
143    }