/*
* JPEGPDFFilter.java
*
* Version: $Revision: 1.8 $
*
* Date: $Date: 2005/07/29 15:56:07 $
*
* Copyright (c) 2002-2005, Hewlett-Packard Company and Massachusetts
* Institute of Technology. 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 Hewlett-Packard Company nor the name of the
* Massachusetts Institute of Technology nor the names of their
* 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.lang.Runnable;
import java.lang.Process;
import java.io.IOException;
import java.io.File;
import java.io.InputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import org.dspace.core.ConfigurationManager;
public class JPEGPDFFilter extends MediaFilter
{
public String getFilteredName(String oldFilename)
{
return oldFilename + ".jpg";
}
/**
* @return String bundle name
*
*/
public String getBundleName()
{
return "THUMBNAIL";
}
/**
* @return String bitstreamformat
*/
public String getFormatString()
{
return "jpeg";
}
/**
* @return String description
*/
public String getDescription()
{
return "Thumbnail";
}
/**
* @param source
* source input stream
*
* @return InputStream the resulting input stream
*/
public InputStream getDestinationStream(InputStream source)
throws Exception
{
int exit_value = 0;
String pdfConversionTool = ConfigurationManager.getProperty("presentation.pdf.conversion.tool");
String conversionToolOptions = ConfigurationManager.getProperty("presentation.pdf.conversion.tool.options");
File infile = new File(ConfigurationManager.getProperty("upload.temp.dir") + File.separator + "infile.pdf");
BufferedInputStream bis = new BufferedInputStream(source);
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(infile));
int b=0;
while((b=bis.read()) > -1)
{
bos.write(b);
}
bos.close();
bis.close();
File outfile = new File(ConfigurationManager.getProperty("upload.temp.dir") + File.separator + "outfile.jpg");
String cmd = pdfConversionTool + " " + infile.getCanonicalPath() + "[0]";
cmd = cmd + " " + conversionToolOptions + " " + outfile.getCanonicalPath();
Runtime rt = Runtime.getRuntime();
Process p = null;
try
{
p = rt.exec(cmd);
exit_value = p.waitFor();
}
catch (IOException e)
{
System.out.println("IOException - Command failed: " + cmd);
throw new Exception(e.getMessage() + "\nFailed while running: " + cmd);
}
p.destroy();
if (exit_value != 0) // Process did not execute OK
{
System.out.println("Command failed: " + cmd + " with code " + exit_value);
throw new Exception("Failed while running: " + cmd);
}
return new FileInputStream(outfile);
}
}