mirror of
https://github.com/yacy/yacy_search_server.git
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5e31bad711
all unique links! This made it necessary, that a large portion of the parser and link processing classes must be adopted to carry a different type of link collection which carry a property attribute which are attached to web anchors. - introduction of a new URL class, AnchorURL - the other url classes, DigestURI and MultiProtocolURI had been renamed and refactored to fit into a new document package schema, document.id - cleanup of net.yacy.cora.document package and refactoring
119 lines
4.1 KiB
Java
119 lines
4.1 KiB
Java
//httpChunkedOutputStream.java
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//-------------------------------------
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//part of YACY
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//(C) by Michael Peter Christen; mc@yacy.net
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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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package net.yacy.server.http;
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import java.io.FilterOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import net.yacy.cora.document.encoding.ASCII;
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import net.yacy.cora.document.encoding.UTF8;
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import net.yacy.cora.util.ByteBuffer;
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import net.yacy.kelondro.util.FileUtils;
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import net.yacy.server.serverCore;
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public final class ChunkedOutputStream extends FilterOutputStream {
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private boolean finished = false;
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public ChunkedOutputStream(final OutputStream out) {
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super(out);
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}
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@Override
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public synchronized 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((byte) 48);
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this.out.write(serverCore.CRLF);
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this.out.write(serverCore.CRLF);
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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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@Override
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public void write(final 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(ASCII.getBytes(Integer.toHexString(b.length)));
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this.out.write(serverCore.CRLF);
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this.out.write(b);
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this.out.write(serverCore.CRLF);
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this.out.flush();
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}
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@Override
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public void write(final byte[] b, final int off, final 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(ASCII.getBytes(Integer.toHexString(len)));
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this.out.write(serverCore.CRLF);
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this.out.write(b, off, len);
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this.out.write(serverCore.CRLF);
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this.out.flush();
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}
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public void write(final ByteBuffer b, final int off, final 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(ASCII.getBytes(Integer.toHexString(len)));
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this.out.write(serverCore.CRLF);
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this.out.write(b.getBytes(off, len));
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this.out.write(serverCore.CRLF);
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this.out.flush();
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}
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public void write(final InputStream b) throws IOException {
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if (this.finished) throw new IOException("ChunkedOutputStream already finalized.");
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final int len = b.available();
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if (len == 0) return;
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this.out.write(ASCII.getBytes(Integer.toHexString(len)));
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this.out.write(serverCore.CRLF);
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FileUtils.copy(b, this.out, len);
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this.out.write(serverCore.CRLF);
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this.out.flush();
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}
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@Override
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public void write(final int b) throws IOException {
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if (this.finished) throw new IOException("ChunkedOutputStream already finalized.");
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this.out.write(UTF8.getBytes("1"));
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this.out.write(serverCore.CRLF);
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this.out.write(b);
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this.out.write(serverCore.CRLF);
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this.out.flush();
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}
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}
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