/*
* BitstreamFilterByFilename.java
*
* Version: $Revision: 3984 $
*
* Date: $Date: 2009-06-29 22:33:25 -0400 (Mon, 29 Jun 2009) $
*
* Copyright (c) 2002-2009, The DSpace Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the DSpace Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
package org.dspace.app.itemupdate;
import java.util.regex.*;
import org.dspace.content.Bitstream;
/**
* BitstreamFilter implementation to filter by filename pattern
*
*/
public class BitstreamFilterByFilename extends BitstreamFilter {
private Pattern pattern;
private String filenameRegex;
public BitstreamFilterByFilename()
{
//empty
}
/**
* Tests bitstream by matching the regular expression in the
* properties against the bitstream name
*
* @returns whether bitstream name matches the regular expression
*/
public boolean accept(Bitstream bitstream) throws BitstreamFilterException
{
if (filenameRegex == null)
{
filenameRegex = props.getProperty("filename");
if (filenameRegex == null)
{
throw new BitstreamFilterException("BitstreamFilter property 'filename' not found.");
}
pattern = Pattern.compile(filenameRegex);
}
Matcher m = pattern.matcher(bitstream.getName());
return m.matches();
}
}