/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2006-2008 Sun Microsystems, Inc.
*/
package org.opends.server.loggers;
import java.io.IOException;
import java.io.OutputStream;
/**
* A metered stream is a subclass of OutputStream that
* (a) forwards all its output to a target stream
* (b) keeps track of how many bytes have been written.
*/
class MeteredStream extends OutputStream
{
OutputStream out;
long written;
/**
* Create the stream wrapped around the specified output
* stream.
*
* @param out The target output stream to keep track of.
* @param written The number of bytes written to the stream.
*/
MeteredStream(OutputStream out, long written)
{
this.out = out;
this.written = written;
}
/**
* Write the specified byte to the stream.
*
* @param b The value to be written to the stream.
*
* @exception IOException if the write failed.
*/
public void write(int b) throws IOException
{
out.write(b);
written++;
}
/**
* Write the specified buffer to the stream.
*
* @param buff The value to be written to the stream.
*
* @exception IOException if the write failed.
*/
public void write(byte buff[]) throws IOException
{
out.write(buff);
written += buff.length;
}
/**
* Write the specified buffer to the stream.
*
* @param buff The value to be written to the stream.
* @param off The offset to write from.
* @param len The length of the buffer to write.
*
* @exception IOException if the write failed.
*/
public void write(byte buff[], int off, int len) throws IOException
{
out.write(buff,off,len);
written += len;
}
/**
* Flush the output stream which flushes the target output stream.
*
* @exception IOException if the flush failed.
*/
public void flush() throws IOException
{
out.flush();
}
/**
* Close the output stream which closes the target output stream.
*
* @exception IOException if the close failed.
*/
public void close() throws IOException
{
out.close();
}
}