StreamUtil.java

/*******************************************************************************
* Copyright (c) 2013 Composent, Inc. and others. All rights reserved. This
* program and the accompanying materials are made available under the terms of
* the Eclipse Public License v1.0 which accompanies this distribution, and is
* available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
*   Composent, Inc. - initial API and implementation
******************************************************************************/
package org.eclipse.ecf.remoteservice.util;

import java.io.*;

/**
 * @since 8.1
 */
public class StreamUtil {

	private static final int DEFAULT_BUFFER_SIZE = 4096;

	private int bufferSize;

	public StreamUtil(int bufferSize) {
		this.bufferSize = bufferSize;
	}

	public StreamUtil() {
		this(DEFAULT_BUFFER_SIZE);
	}

	public long copy(InputStream input, OutputStream output) throws IOException {
		byte[] buffer = new byte[bufferSize];
		long count = 0;
		int n = 0;
		while ((n = input.read(buffer)) != -1) {
			output.write(buffer, 0, n);
			count += n;
		}
		return count;
	}

	public byte[] toByteArray(InputStream input) throws IOException {
		ByteArrayOutputStream output = new ByteArrayOutputStream(bufferSize);
		copy(input, output);
		return output.toByteArray();
	}

	public void writeByteArray(OutputStream outs, byte[] bytes) throws IOException {
		copy(new ByteArrayInputStream(bytes), outs);
	}
}