/*
* 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.
*/
/* $Id: ASCIIHexFilter.java 588547 2007-10-26 07:48:14Z jeremias $ */
package org.apache.fop.pdf;
import java.io.OutputStream;
import java.io.IOException;
import org.apache.xmlgraphics.util.io.ASCIIHexOutputStream;
/**
* ASCII Hex filter for PDF streams.
* This filter converts a pdf stream to ASCII hex data.
*/
public class ASCIIHexFilter extends PDFFilter {
/**
* Get the name of this filter.
*
* @return the name of this filter for pdf
*/
public String getName() {
return "/ASCIIHexDecode";
}
/**
* {@inheritDoc}
*/
public boolean isASCIIFilter() {
return true;
}
/**
* Get the decode params.
*
* @return always null
*/
public PDFObject getDecodeParms() {
return null;
}
/**
* {@inheritDoc}
*/
public OutputStream applyFilter(OutputStream out) throws IOException {
if (isApplied()) {
return out;
} else {
return new ASCIIHexOutputStream(out);
}
}
}