org.apache.xml.security.utils.DigesterOutputStream Maven / Gradle / Ivy
The newest version!
/**
* 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.
*/
package org.apache.xml.security.utils;
import java.io.ByteArrayOutputStream;
import org.apache.xml.security.algorithms.MessageDigestAlgorithm;
/**
* @author raul
*
*/
public class DigesterOutputStream extends ByteArrayOutputStream {
private static final org.apache.commons.logging.Log log =
org.apache.commons.logging.LogFactory.getLog(DigesterOutputStream.class);
final MessageDigestAlgorithm mda;
/**
* @param mda
*/
public DigesterOutputStream(MessageDigestAlgorithm mda) {
this.mda = mda;
}
/** @inheritDoc */
public void write(byte[] arg0) {
write(arg0, 0, arg0.length);
}
/** @inheritDoc */
public void write(int arg0) {
mda.update((byte)arg0);
}
/** @inheritDoc */
public void write(byte[] arg0, int arg1, int arg2) {
if (log.isDebugEnabled()) {
log.debug("Pre-digested input:");
StringBuilder sb = new StringBuilder(arg2);
for (int i = arg1; i < (arg1 + arg2); i++) {
sb.append((char)arg0[i]);
}
log.debug(sb.toString());
}
mda.update(arg0, arg1, arg2);
}
/**
* @return the digest value
*/
public byte[] getDigestValue() {
return mda.digest();
}
}