/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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.
*
*/
package com.sun.org.apache.xml.internal.security.transforms.implementations;
import java.io.OutputStream;
import com.sun.org.apache.xml.internal.security.c14n.CanonicalizationException;
import com.sun.org.apache.xml.internal.security.c14n.implementations.Canonicalizer20010315OmitComments;
import com.sun.org.apache.xml.internal.security.signature.XMLSignatureInput;
import com.sun.org.apache.xml.internal.security.transforms.TransformSpi;
import com.sun.org.apache.xml.internal.security.transforms.Transforms;
/**
* Implements the <CODE>http://www.w3.org/TR/2001/REC-xml-c14n-20010315</CODE>
* transform.
*
* @author Christian Geuer-Pollmann
*/
public class TransformC14N extends TransformSpi {
/** Field implementedTransformURI */
public static final String implementedTransformURI =
Transforms.TRANSFORM_C14N_OMIT_COMMENTS;
/**
* @inheritDoc
*/
protected String engineGetURI() {
return TransformC14N.implementedTransformURI;
}
/**
* @inheritDoc
*/
protected XMLSignatureInput enginePerformTransform(XMLSignatureInput input)
throws CanonicalizationException {
return enginePerformTransform(input,null);
}
protected XMLSignatureInput enginePerformTransform(XMLSignatureInput input,OutputStream os)
throws CanonicalizationException {
Canonicalizer20010315OmitComments c14n = new Canonicalizer20010315OmitComments();
if (os!=null) {
c14n.setWriter(os);
}
byte[] result = null;
input.setNeedsToBeExpanded(true);
result=c14n.engineCanonicalize(input);
XMLSignatureInput output=new XMLSignatureInput(result);
if (os!=null) {
output.setOutputStream(os);
}
return output;
}
}