/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
* %W% %E%
*/
package com.sun.mail.mbox;
import java.io.*;
/**
* Count the number of bytes in the body of the message written to the stream.
*/
class ContentLengthCounter extends OutputStream {
private long size = 0;
private boolean inHeader = true;
private int lastb1 = -1, lastb2 = -1;
public void write(int b) throws IOException {
if (inHeader) {
// if line terminator is CR
if (b == '\r' && lastb1 == '\r')
inHeader = false;
else if (b == '\n') {
// if line terminator is \n
if (lastb1 == '\n')
inHeader = false;
// if line terminator is CRLF
else if (lastb1 == '\r' && lastb2 == '\n')
inHeader = false;
}
lastb2 = lastb1;
lastb1 = b;
} else
size++;
}
public void write(byte[] b) throws IOException {
if (inHeader)
super.write(b);
else
size += b.length;
}
public void write(byte[] b, int off, int len) throws IOException {
if (inHeader)
super.write(b, off, len);
else
size += len;
}
public long getSize() {
return size;
}
public static void main(String argv[]) throws Exception {
int b;
ContentLengthCounter os = new ContentLengthCounter();
while ((b = System.in.read()) >= 0)
os.write(b);
System.out.println("size " + os.getSize());
}
}
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