X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fde%2Ftodesbaum%2Futil%2Fio%2FStreamCopier.java;fp=src%2Fde%2Ftodesbaum%2Futil%2Fio%2FStreamCopier.java;h=0000000000000000000000000000000000000000;hb=38bdc433e50669e8244a63b5af59e597f88f1d29;hp=c7d99dedb84fbdc07fc980722e83c0752a4adaa4;hpb=f14b9fbe6d88e23920b10a75ebeba4d38390301b;p=jSite.git diff --git a/src/de/todesbaum/util/io/StreamCopier.java b/src/de/todesbaum/util/io/StreamCopier.java deleted file mode 100644 index c7d99de..0000000 --- a/src/de/todesbaum/util/io/StreamCopier.java +++ /dev/null @@ -1,235 +0,0 @@ -/* - * jSite - StreamCopier.java - Copyright © 2006–2012 David Roden - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License as published by the Free Software - * Foundation; either version 2 of the License, or (at your option) any later - * version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -package de.todesbaum.util.io; - -import java.io.EOFException; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.util.EventListener; - -/** - * Copies input from an {@link InputStream} to an {@link OutputStream}. - * - * @author David Roden - * @version $Id$ - */ -public class StreamCopier { - - /** - * The default size of the buffer. - */ - private static final int BUFFER_SIZE = 64 * 1024; - - /** - * The {@link InputStream} to read from. - */ - private InputStream inputStream; - - /** - * The {@link OutputStream} to write to. - */ - private OutputStream outputStream; - - /** - * The number of bytes to copy. - */ - private long length; - - /** - * The size of the buffer. - */ - private int bufferSize; - - /** - * Creates a new StreamCopier with the specified parameters and the default - * buffer size. - * - * @param inputStream - * The {@link InputStream} to read from - * @param outputStream - * The {@link OutputStream} to write to - * @param length - * The number of bytes to copy - */ - public StreamCopier(InputStream inputStream, OutputStream outputStream, long length) { - this(inputStream, outputStream, length, BUFFER_SIZE); - } - - /** - * Creates a new StreamCopier with the specified parameters and the default - * buffer size. - * - * @param inputStream - * The {@link InputStream} to read from - * @param outputStream - * The {@link OutputStream} to write to - * @param length - * The number of bytes to copy - * @param bufferSize - * The number of bytes to copy at a time - */ - public StreamCopier(InputStream inputStream, OutputStream outputStream, long length, int bufferSize) { - this.inputStream = inputStream; - this.outputStream = outputStream; - this.length = length; - this.bufferSize = bufferSize; - } - - /** - * Copies the stream data. If the input stream is depleted before the - * requested number of bytes have been read an {@link EOFException} is - * thrown. - * - * @throws EOFException - * if the input stream is depleted before the requested number - * of bytes has been read - * @throws IOException - * if an I/O error occurs - */ - public void copy() throws EOFException, IOException { - copy(inputStream, outputStream, length, bufferSize); - } - - /** - * Copies the stream data. If the input stream is depleted before the - * requested number of bytes have been read an {@link EOFException} is - * thrown. - * - * @param progressListener - * The progress listener (may be {@code null}) - * @throws EOFException - * if the input stream is depleted before the requested number - * of bytes has been read - * @throws IOException - * if an I/O error occurs - */ - public void copy(ProgressListener progressListener) throws EOFException, IOException { - copy(inputStream, outputStream, length, bufferSize, progressListener); - } - - /** - * Copies length bytes from the inputStream to - * the outputStream. - * - * @param inputStream - * The input stream to read from - * @param outputStream - * The output stream to write to - * @param length - * The number of bytes to copy - * @throws IOException - * if an I/O exception occurs - */ - public static void copy(InputStream inputStream, OutputStream outputStream, long length) throws IOException { - copy(inputStream, outputStream, length, BUFFER_SIZE); - } - - /** - * Copies length bytes from the inputStream to - * the outputStream. - * - * @param inputStream - * The input stream to read from - * @param outputStream - * The output stream to write to - * @param length - * The number of bytes to copy - * @param progressListener - * The progress listener (may be {@code null}) - * @throws IOException - * if an I/O exception occurs - */ - public static void copy(InputStream inputStream, OutputStream outputStream, long length, ProgressListener progressListener) throws IOException { - copy(inputStream, outputStream, length, BUFFER_SIZE, progressListener); - } - - /** - * Copies length bytes from the inputStream to - * the outputStream using a buffer with the specified size - * - * @param inputStream - * The input stream to read from - * @param outputStream - * The output stream to write to - * @param length - * The number of bytes to copy - * @param bufferSize - * The size of the copy buffer - * @throws IOException - * if an I/O exception occurs - */ - public static void copy(InputStream inputStream, OutputStream outputStream, long length, int bufferSize) throws IOException { - copy(inputStream, outputStream, length, bufferSize, null); - } - - /** - * Copies length bytes from the inputStream to - * the outputStream using a buffer with the specified size - * - * @param inputStream - * The input stream to read from - * @param outputStream - * The output stream to write to - * @param length - * The number of bytes to copy - * @param bufferSize - * The size of the copy buffer - * @param progressListener - * The progress listener (may be {@code null}) - * @throws IOException - * if an I/O exception occurs - */ - public static void copy(InputStream inputStream, OutputStream outputStream, long length, int bufferSize, ProgressListener progressListener) throws IOException { - long remaining = length; - byte[] buffer = new byte[bufferSize]; - while (remaining > 0) { - int read = inputStream.read(buffer, 0, (int) Math.min(Integer.MAX_VALUE, Math.min(bufferSize, remaining))); - if (read == -1) { - throw new EOFException(); - } - outputStream.write(buffer, 0, read); - remaining -= read; - if (progressListener != null) { - progressListener.onProgress(length - remaining, length); - } - } - } - - /** - * Interface for objects that want to be notified about the progress of a - * {@link StreamCopier#copy()} operation. - * - * @author David ‘Bombe’ Roden <bombe@freenetproject.org> - */ - public static interface ProgressListener extends EventListener { - - /** - * Notifiies a listener that a copy process made some progress. - * - * @param copied - * The number of bytes that have already been copied - * @param length - * The total number of bytes that will be copied - */ - public void onProgress(long copied, long length); - - } - -}