/*
* This file is part of muCommander, http://www.mucommander.com
* Copyright (C) 2002-2016 Maxence Bernard
*
* muCommander is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* muCommander 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.mucommander.commons.io;
import java.io.IOException;
/**
* FilteredRandomOutputStream is a filtered output stream for {@link RandomAccessOutputStream} subclasses, allowing
* to easily extend the functionality provided by the stream by overriding only a few methods.
* In a similar way to <code>java.io.FilteredOutputStream</code>, this class delegates all method calls to the
* specified <code>RandomAccessOutputStream</code>.
*
* @author Maxence Bernard
*/
public class FilteredRandomOutputStream extends RandomAccessOutputStream {
/** The underlying RandomAccessOutputStream */
protected RandomAccessOutputStream raos;
/**
* Creates a new FilteredRandomOutputStream that delegates all method calls to the specified
* <code>RandomAccessOutputStream</code>.
*
* @param raos the RandomAccessOutputStream to delegate method calls to
*/
public FilteredRandomOutputStream(RandomAccessOutputStream raos) {
this.raos = raos;
}
/////////////////////////////////////////////
// RandomAccessOutputStream implementation //
/////////////////////////////////////////////
@Override
public void write(int b) throws IOException {
raos.write(b);
}
@Override
public void write(byte b[]) throws IOException {
raos.write(b);
}
@Override
public void write(byte b[], int off, int len) throws IOException {
raos.write(b, off, len);
}
@Override
public void setLength(long newLength) throws IOException {
raos.setLength(newLength);
}
public long getOffset() throws IOException {
return raos.getOffset();
}
public long getLength() throws IOException {
return raos.getLength();
}
public void seek(long offset) throws IOException {
raos.seek(offset);
}
@Override
public void flush() throws IOException {
raos.flush();
}
@Override
public void close() throws IOException {
try {
flush();
}
catch(IOException e) {
// Try closing the stream anyway
}
raos.close();
}
}