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.commons.lang.math.NumberUtils;

 import org.apache.maven.archiva.model.ArchivaRepositoryMetadata;

 import org.apache.maven.archiva.model.Plugin;

 import org.apache.maven.archiva.model.SnapshotVersion;

 import org.apache.maven.archiva.xml.XMLException;

 import org.apache.maven.archiva.xml.XMLReader;

 import org.dom4j.Element;

 import java.io.File;

 import java.util.Date;

 /**

  * RepositoryMetadataReader - read maven-metadata.xml files.

  *

  * @version $Id: RepositoryMetadataReader.java 756559 2009-03-20 16:05:05Z oching $

  */

 public class RepositoryMetadataReader

 {

     /**

      * Read and return the {@link ArchivaRepositoryMetadata} object from the provided xml file.

      * 

      * @param metadataFile the maven-metadata.xml file to read.

      * @return the archiva repository metadata object that represents the provided file contents.

      * @throws RepositoryMetadataException

      */

     public static ArchivaRepositoryMetadata read( File metadataFile )

         throws RepositoryMetadataException

     {

         try

         {

             XMLReader xml = new XMLReader( "metadata", metadataFile );

             // invoke this to remove namespaces, see MRM-1136

             xml.removeNamespaces();

             ArchivaRepositoryMetadata metadata = new ArchivaRepositoryMetadata();

             metadata.setGroupId( xml.getElementText( "//metadata/groupId" ) );

             metadata.setArtifactId( xml.getElementText( "//metadata/artifactId" ) );

             metadata.setVersion( xml.getElementText( "//metadata/version" ) );

             metadata.setFileLastModified( new Date( metadataFile.lastModified() ) );

             metadata.setFileSize( metadataFile.length() );

             metadata.setWhenIndexed( null );

             metadata.setLastUpdated( xml.getElementText( "//metadata/versioning/lastUpdated" ) );

             metadata.setLatestVersion( xml.getElementText( "//metadata/versioning/latest" ) );

             metadata.setReleasedVersion( xml.getElementText( "//metadata/versioning/release" ) );

             metadata.setAvailableVersions( xml.getElementListText( "//metadata/versioning/versions/version" ) );

             Element snapshotElem = xml.getElement( "//metadata/versioning/snapshot" );

             if ( snapshotElem != null )

             {

                 SnapshotVersion snapshot = new SnapshotVersion();

                 snapshot.setTimestamp( snapshotElem.elementTextTrim( "timestamp" ) );

                 String tmp = snapshotElem.elementTextTrim( "buildNumber" );

                 if( NumberUtils.isNumber( tmp ))

                 {

                     snapshot.setBuildNumber( NumberUtils.toInt( tmp ) );

                 }

                 metadata.setSnapshotVersion( snapshot );

             }

             for ( Element plugin : xml.getElementList( "//metadata/plugins/plugin" ) )

             {

                 Plugin p = new Plugin();

                 p.setPrefix( plugin.elementTextTrim( "prefix" ) );

                 p.setArtifactId( plugin.elementTextTrim( "artifactId" ) );

                 p.setName( plugin.elementTextTrim( "name" ) );

                 metadata.addPlugin( p );

             }

             return metadata;

         }

         catch ( XMLException e )

         {

             throw new RepositoryMetadataException( e.getMessage(), e );

         }

     }

 }