CountOutputStream.java

/*
 * Copyright 2009 Richard Zschech.
 * 
 * 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 net.zschech.gwt.comet.server.impl;

import java.io.IOException;
import java.io.OutputStream;

public class CountOutputStream extends OutputStream {
	
	private int count;
	private final OutputStream out;
	private boolean ignoreFlush;
	
	public CountOutputStream(OutputStream out) {
		this.out = out;
	}
	
	public int getCount() {
		return count;
	}
	
	public void setIgnoreFlush(boolean ignoreFlush) {
		this.ignoreFlush = ignoreFlush;
	}
	
	public boolean isIgnoreFlush() {
		return ignoreFlush;
	}
	
	@Override
	public void write(int b) throws IOException {
		out.write(b);
		count++;
	}
	
	@Override
	public void write(byte[] b) throws IOException {
		out.write(b);
		count += b.length;
	}
	
	@Override
	public void write(byte[] b, int off, int len) throws IOException {
		out.write(b, off, len);
		count += len;
	}
	
	@Override
	public void flush() throws IOException {
		if (!ignoreFlush) {
			out.flush();
		}
	}
}