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BoofCV is an open source Java library for real-time computer vision and robotics applications.

There is a newer version: 1.1.7

/*
 * Copyright (c) 2021, Peter Abeles. All Rights Reserved.
 *
 * This file is part of BoofCV (http://boofcv.org).
 *
 * 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 boofcv.io;

import java.io.OutputStream;
import java.io.PrintStream;

/**
 * An output stream which redirects the data into two different streams. Good for when you want to
 * log and stills end data to stdout.
 *
 * @author Peter Abeles
 */
public class MirrorStream extends OutputStream {
	//@formatter:off
	PrintStream outA, outB;
	public MirrorStream( PrintStream outA, PrintStream outB ) {this.outA = outA; this.outB = outB;}
	@Override public void write( int b ) {outA.write(b); outB.write(b);}
	@Override public void write( byte[] b, int off, int len ) {outA.write(b, off, len); outB.write(b, off, len);}
	@Override public void flush() {outA.flush(); outB.flush();}
	@Override public void close() {outA.close(); outB.close();}
	//@formatter:on
}