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104 lines
4.0 KiB
104 lines
4.0 KiB
//httpChunkedOutputStream.java
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//-------------------------------------
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//part of YACY
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//(C) by Michael Peter Christen; mc@anomic.de
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//first published on http://www.anomic.de
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//Frankfurt, Germany, 2004
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//
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//This file ist contributed by Martin Thelian
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//last major change: 05.09.2005
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//
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//This program is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//Using this software in any meaning (reading, learning, copying, compiling,
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//running) means that you agree that the Author(s) is (are) not responsible
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//for cost, loss of data or any harm that may be caused directly or indirectly
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//by usage of this softare or this documentation. The usage of this software
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//is on your own risk. The installation and usage (starting/running) of this
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//software may allow other people or application to access your computer and
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//any attached devices and is highly dependent on the configuration of the
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//software which must be done by the user of the software; the author(s) is
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//(are) also not responsible for proper configuration and usage of the
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//software, even if provoked by documentation provided together with
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//the software.
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//
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//Any changes to this file according to the GPL as documented in the file
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//gpl.txt aside this file in the shipment you received can be done to the
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//lines that follows this copyright notice here, but changes must not be
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//done inside the copyright notive above. A re-distribution must contain
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//the intact and unchanged copyright notice.
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//Contributions and changes to the program code must be marked as such.
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package de.anomic.http;
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import java.io.FilterOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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public final class httpChunkedOutputStream extends FilterOutputStream
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{
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private boolean finished = false;
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private static final byte[] crlf = {(byte)13,(byte)10};
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public httpChunkedOutputStream(OutputStream out) {
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super(out);
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}
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public void close() throws IOException {
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if (!this.finished) this.finish();
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this.out.close();
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}
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public void finish() throws IOException {
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if (!this.finished) {
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this.out.write("0\r\n\r\n".getBytes());
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this.out.flush();
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this.finished = true;
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}
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}
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public void write(byte[] b) throws IOException {
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if (this.finished) throw new IOException("ChunkedOutputStream already finalized.");
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if (b.length == 0) return;
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this.out.write(Integer.toHexString(b.length).getBytes());
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this.out.write(crlf);
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this.out.write(b);
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this.out.write(crlf);
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this.out.flush();
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}
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public void write(byte[] b, int off, int len) throws IOException {
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if (this.finished) throw new IOException("ChunkedOutputStream already finalized.");
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if (len == 0) return;
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this.out.write(Integer.toHexString(len).getBytes());
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this.out.write(crlf);
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this.out.write(b, off, len);
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this.out.write(crlf);
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this.out.flush();
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}
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public void write(int b) throws IOException {
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if (this.finished) throw new IOException("ChunkedOutputStream already finalized.");
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this.out.write("1".getBytes());
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this.out.write(crlf);
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this.out.write(b);
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this.out.write(crlf);
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this.out.flush();
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}
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}
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