package org.apache.maven.plugin.changes;
   
   /*
    * 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.io.File;
  import java.io.FileInputStream;
  import java.util.Collections;
  import java.util.List;
  
  import org.apache.maven.plugin.logging.Log;
  import org.apache.maven.plugins.changes.model.Body;
  import org.apache.maven.plugins.changes.model.ChangesDocument;
  import org.apache.maven.plugins.changes.model.Properties;
  import org.apache.maven.plugins.changes.model.io.xpp3.ChangesXpp3Reader;
  import org.codehaus.plexus.util.IOUtil;
  
  /**
   * A facade for a changes.xml file.
   *
   * @version $Id: ChangesXML.java 1579079 2014-03-18 22:57:22Z dennisl $
   */
  public class ChangesXML
  {
  
      private List releaseList;
  
      private String author;
  
      private String title;
  
      private String authorEmail;
  
      private ChangesDocument changesDocument;
  
      public ChangesXML( File xmlPath, Log log )
      {
  
          if ( xmlPath == null || !xmlPath.exists() )
          {
              log.error( "changes xml file is null or not exists " );
              return;
          }
  
          FileInputStream fileInputStream = null;
  
          try
          {
  
              ChangesXpp3Reader reader = new ChangesXpp3Reader();
  
              fileInputStream = new FileInputStream( xmlPath );
              changesDocument = reader.read( fileInputStream, false );
  
              if ( changesDocument == null )
              {
                  log.error( "Cannot build Changes Report from file: " + xmlPath.getPath() );
                  return;
              }
  
              Properties properties = changesDocument.getProperties();
  
              if ( properties != null )
              {
                  if ( properties.getAuthor() != null )
                  {
                      this.author = properties.getAuthor().getName();
                      this.authorEmail = properties.getAuthor().getName();
                  }
                  this.title = properties.getTitle();
              }
  
  
              Body body = changesDocument.getBody();
  
  
              if ( body != null )
              {
                  this.releaseList = body.getReleases();
              }
  
          }
          catch ( Throwable e )
         {
             // FIXME throw an Exception ?
             log.error( "An error occurred when parsing the changes.xml file: ", e );
         }
         finally
         {
             IOUtil.close( fileInputStream );
         }
     }
 
     public void setAuthor( String author )
     {
         this.author = author;
     }
 
     public String getAuthor()
     {
         return author;
     }
 
     public void setReleaseList( List releaseList )
     {
         this.releaseList = releaseList;
     }
 
     public List getReleaseList()
     {
         return releaseList == null ? Collections.EMPTY_LIST : releaseList;
     }
 
     public void setTitle( String title )
     {
         this.title = title;
     }
 
     public String getTitle()
     {
         return title;
     }
 
     public ChangesDocument getChangesDocument()
     {
         return changesDocument;
     }
 
     public String getAuthorEmail()
     {
         return authorEmail;
     }
 
     public void setAuthorEmail( String authorEmail )
     {
         this.authorEmail = authorEmail;
     }
 
 }