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

Description

Copy an input stream to an output stream.

License

Apache License

Parameter

Parameter	Description
bufferSize	the size of the buffer
progress	the progress observer it could be null
in	the input stream
out	the output stream
canStop	if true, the copy can be stopped by interrupting the thread

Exception

Parameter	Description
IOException	IOException If an I/O error occurs

Return

true if the copy was done, false if it was interrupted

Declaration

public static boolean copyStream(int bufferSize, 
        InputStream in, OutputStream out, boolean canStop)
        throws IOException 

Method Source Code

//package com.java2s;
/*//from ww w  . j  a va  2 s  . c o  m
 * Created on 26.04.2005
 *
 * Copyright 2005-2006 Daniel Jacobi
 *
 * 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.
 * 
 */

import java.io.*;

public class Main {
    /**
     * Copy an input stream to an output stream. Copied from jEdit Project.
     * 
     * @param bufferSize
     *            the size of the buffer
     * @param progress
     *            the progress observer it could be null
     * @param in
     *            the input stream
     * @param out
     *            the output stream
     * @param canStop
     *            if true, the copy can be stopped by interrupting the thread
     * @return <code>true</code> if the copy was done, <code>false</code> if
     *         it was interrupted
     * @throws IOException
     *             IOException If an I/O error occurs
     */
    public static boolean copyStream(int bufferSize, /*ProgressObserver progress,*/
            InputStream in, OutputStream out, boolean canStop)
            throws IOException {
        byte[] buffer = new byte[bufferSize];
        int n;
        long copied = 0L;
        while (-1 != (n = in.read(buffer))) {
            out.write(buffer, 0, n);
            copied += n;
            //         if (progress != null)
            //            progress.setValue(copied);
            if (canStop && Thread.interrupted())
                return false;
        }
        return true;
    }

    /**
     * Copy an input stream to an output stream with a buffer of 4096 bytes.
     * 
     * @param progress
     *            the progress observer it could be null
     * @param in
     *            the input stream
     * @param out
     *            the output stream
     * @param canStop
     *            if true, the copy can be stopped by interrupting the thread
     * @return <code>true</code> if the copy was done, <code>false</code> if
     *         it was interrupted
     * @throws IOException
     *             IOException If an I/O error occurs
     */
    public static boolean copyStream(
    /*ProgressObserver progress,*/InputStream in, OutputStream out,
            boolean canStop) throws IOException {
        return copyStream(4096, /*progress,*/in, out, canStop);
    }
}

Related

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2. copyStream(InputStream src, OutputStream dest)
3. copyStream(InputStream src, OutputStream dest, boolean closeStreams, String title)
4. copyStream(InputStream src, OutputStream osstream)
5. CopyStream(InputStream sSource, OutputStream sTarget)
6. copyStream(java.io.InputStream in, java.io.OutputStream out)
7. copyStream(java.io.InputStream inputStream, java.io.OutputStream outputStream)
8. copyStream(java.io.InputStream src, java.io.OutputStream dest)
9. copyStream(OutputStream out, InputStream in, int bufsz)