/*
* ====================================================================
* Copyright (c) 2004-2009 TMate Software Ltd. All rights reserved.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://svnkit.com/license.html
* If newer versions of this license are posted there, you may use a
* newer version instead, at your option.
* ====================================================================
*/
package org.tmatesoft.svn.core.internal.wc.admin;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.util.Map;
import org.tmatesoft.svn.core.SVNException;
import org.tmatesoft.svn.core.internal.wc.IOExceptionWrapper;
import org.tmatesoft.svn.core.internal.wc.SVNSubstitutor;
/**
* @version 1.3
* @author TMate Software Ltd.
*/
public class SVNTranslatorOutputStream extends OutputStream {
private SVNSubstitutor mySubstitutor;
private OutputStream myDst;
private ByteBuffer mySrcBuffer;
private ByteBuffer myDstBuffer;
public SVNTranslatorOutputStream(OutputStream dst, byte[] eol, boolean repair, Map keywords, boolean expand) {
mySubstitutor = new SVNSubstitutor(eol, repair, keywords, expand);
myDst = dst;
mySrcBuffer = ByteBuffer.allocate(2048);
myDstBuffer = ByteBuffer.allocate(2048);
}
public void write(byte[] b, int off, int len) throws IOException {
mySrcBuffer = write(mySrcBuffer, b, off, len);
mySrcBuffer.flip();
// now src is ready for reading untill limit.
try {
myDstBuffer = mySubstitutor.translateChunk(mySrcBuffer, myDstBuffer);
} catch (SVNException svne) {
IOExceptionWrapper wrappedException = new IOExceptionWrapper(svne);
throw wrappedException;
}
myDstBuffer.flip();
// push all from dst buffer to dst stream.
myDst.write(myDstBuffer.array(), myDstBuffer.arrayOffset() + myDstBuffer.position(), myDstBuffer.remaining());
// there should be nothing in src now.
// and in dst.
mySrcBuffer.clear();
myDstBuffer.clear();
}
public void close() throws IOException {
try {
myDstBuffer = mySubstitutor.translateChunk(null, myDstBuffer);
} catch (SVNException svne) {
IOExceptionWrapper wrappedException = new IOExceptionWrapper(svne);
throw wrappedException;
}
myDstBuffer.flip();
if (myDstBuffer.hasRemaining()) {
myDst.write(myDstBuffer.array(), myDstBuffer.arrayOffset() + myDstBuffer.position(), myDstBuffer.remaining());
}
myDstBuffer.clear();
myDst.close();
}
public void write(byte[] b) throws IOException {
write(b, 0, b.length);
}
public void write(int b) throws IOException {
write(new byte[] {(byte) (b & 0xFF)});
}
private static ByteBuffer write(ByteBuffer dst, byte[] bytes, int offset, int length) {
if (dst.remaining() < length) {
// expand dst.
ByteBuffer newDst = ByteBuffer.allocate((dst.position() + length)*3/2);
dst.flip();
dst = newDst.put(dst);
}
return dst.put(bytes, offset, length);
}
}