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/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package ch.boye.httpclientandroidlib.impl.auth;
import java.io.IOException;
import java.io.OutputStream;
import java.security.MessageDigest;
class HttpEntityDigester extends OutputStream {
private final MessageDigest digester;
private boolean closed;
private byte[] digest;
HttpEntityDigester(final MessageDigest digester) {
super();
this.digester = digester;
this.digester.reset();
}
@Override
public void write(final int b) throws IOException {
if (this.closed) {
throw new IOException("Stream has been already closed");
}
this.digester.update((byte) b);
}
@Override
public void write(final byte[] b, final int off, final int len) throws IOException {
if (this.closed) {
throw new IOException("Stream has been already closed");
}
this.digester.update(b, off, len);
}
@Override
public void close() throws IOException {
if (this.closed) {
return;
}
this.closed = true;
this.digest = this.digester.digest();
super.close();
}
public byte[] getDigest() {
return this.digest;
}
}
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