package org.apache.maven.archiva.transaction;

 /*

  * 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.IOException;

 import java.util.List;

 import org.codehaus.plexus.digest.Digester;

 /**

  * Event for creating a file from a string content.

  *

  * @version $Id: CreateFileEvent.java 755305 2009-03-17 16:24:16Z brett $

  */

 public class CreateFileEvent

     extends AbstractTransactionEvent

 {

     private final File destination;

     private final String content;

     /**

      * 

      * @param content

      * @param destination

      * @param digesters {@link List}<{@link Digester}> digesters to use for checksumming 

      */

     public CreateFileEvent( String content, File destination, List<Digester> digesters )

     {

         super( digesters );

         this.content = content;

         this.destination = destination;

     }

     public void commit()

         throws IOException

     {

         createBackup( destination );

         mkDirs( destination.getParentFile() );

         if ( !destination.exists() && !destination.createNewFile() )

         {

             throw new IOException( "Unable to create new file" );

         }

         writeStringToFile( destination, content );

         createChecksums( destination, true );

     }

     public void rollback()

         throws IOException

     {

         destination.delete();

         revertFilesCreated();

         revertMkDirs();

         restoreBackups();

     }

 }