/*
* WordFilter.java
*
* Version: $Revision: 3733 $
*
* Date: $Date: 2009-04-24 03:52:11 +0000 (Fri, 24 Apr 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.mediafilter;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import org.textmining.text.extraction.WordExtractor;
/*
*
* to do: helpful error messages - can't find mediafilter.cfg - can't
* instantiate filter - bitstream format doesn't exist
*
*/
public class WordFilter extends MediaFilter
{
public String getFilteredName(String oldFilename)
{
return oldFilename + ".txt";
}
/**
* @return String bundle name
*
*/
public String getBundleName()
{
return "TEXT";
}
/**
* @return String bitstreamformat
*/
public String getFormatString()
{
return "Text";
}
/**
* @return String description
*/
public String getDescription()
{
return "Extracted text";
}
/**
* @param source
* source input stream
*
* @return InputStream the resulting input stream
*/
public InputStream getDestinationStream(InputStream source)
throws Exception
{
// get input stream from bitstream
// pass to filter, get string back
WordExtractor e = new WordExtractor();
String extractedText = e.extractText(source);
// if verbose flag is set, print out extracted text
// to STDOUT
if (MediaFilterManager.isVerbose)
{
System.out.println(extractedText);
}
// generate an input stream with the extracted text
byte[] textBytes = extractedText.getBytes();
ByteArrayInputStream bais = new ByteArrayInputStream(textBytes);
return bais; // will this work? or will the byte array be out of scope?
}
}