Java InputStream to OutputStream copyStream(final InputStream in, final OutputStream out, final int bufferSize)

Description

Copies the contents of an java.io.InputStream to an java.io.OutputStream , using buffer size provided.

License

Open Source License

Parameter

Parameter	Description
in	The InputStream to copy.
out	The OutputStream to copy to.
bufferSize	The size of the buffer to use when copying the stream.

Exception

Parameter	Description
IOException	If a problem occurs copying the InputStream to theOutputStream.

Declaration

public static void copyStream(final InputStream in, final OutputStream out, final int bufferSize)
        throws IOException 

Method Source Code

//package com.java2s;
/*// w  w  w  .  j a v a 2  s .  c  o  m
 * Copyright Matt Palmer 2011-2012, All rights reserved.
 *
 * This code is licensed under a standard 3-clause BSD license:
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer.
 * 
 *  * Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution.
 * 
 *  * The names of its contributors may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 */

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

public class Main {
    private static final int DEFAULT_BUFFER_SIZE = 4096;

    /**
     * Copies the contents of an {@link java.io.InputStream} to an
     * {@link java.io.OutputStream}, using the default buffer size of 4096.
     * 
     * @param in
     *            The InputStream to copy.
     * @param out
     *            The OutputStream to copy to.
     * @throws IOException
     *             If a problem occurs copying the InputStream to the
     *             OutputStream.
     */
    public static void copyStream(final InputStream in, final OutputStream out) throws IOException {
        copyStream(in, out, DEFAULT_BUFFER_SIZE);
    }

    /**
     * Copies the contents of an {@link java.io.InputStream} to an
     * {@link java.io.OutputStream}, using buffer size provided.
     * 
     * @param in
     *            The InputStream to copy.
     * @param out
     *            The OutputStream to copy to.
     * @param bufferSize
     *            The size of the buffer to use when copying the stream.
     * @throws IOException
     *             If a problem occurs copying the InputStream to the
     *             OutputStream.
     */
    public static void copyStream(final InputStream in, final OutputStream out, final int bufferSize)
            throws IOException {
        final byte[] buffer = new byte[bufferSize];
        int byteRead = 0;
        while ((byteRead = in.read(buffer)) >= 0) {
            out.write(buffer, 0, byteRead);
        }
    }
}

Related

1. copyStream(@Nonnull InputStream in, @Nonnull OutputStream out)
2. copyStream(ByteArrayOutputStream source, ByteArrayOutputStream target)
3. copyStream(final InputStream in, final OutputStream out)
4. copyStream(final InputStream in, final OutputStream out)
5. copyStream(final InputStream in, final OutputStream out, int iMax)
6. copyStream(final InputStream input, final OutputStream output, long count)
7. copyStream(final InputStream inputStream, final OutputStream out)
8. copyStream(final InputStream inputStream, final OutputStream outputStream)