SplitterOutputStream.java

/*
 * Copyright 2012 LinkedIn Corp.
 * 
 * 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 azkaban.utils;

import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

public class SplitterOutputStream extends OutputStream {
	List<OutputStream> outputs;

	public SplitterOutputStream(OutputStream... outputs) {
		this.outputs = new ArrayList<OutputStream>(outputs.length);
		for (OutputStream output : outputs) {
			this.outputs.add(output);
		}
	}

	@Override
	public void write(int b) throws IOException {
		for (OutputStream output : outputs) {
			output.write(b);
		}
	}

	@Override
	public void write(byte[] b) throws IOException {
		for (OutputStream output : outputs) {
			output.write(b);
		}
	}

	@Override
	public void write(byte[] b, int off, int len) throws IOException {
		for (OutputStream output : outputs) {
			output.write(b, off, len);
		}
	}

	@Override
	public void flush() throws IOException {
		IOException exception = null;
		for (OutputStream output : outputs) {
			try {
				output.flush();
			} catch (IOException e) {
				exception = e;
			}
		}
		if (exception != null) {
			throw exception;
		}
	}

	@Override
	public void close() throws IOException {
		IOException exception = null;
		for (OutputStream output : outputs) {
			try {
				output.close();
			} catch (IOException e) {
				exception = e;
			}
		}
		if (exception != null) {
			throw exception;
		}
	}

}