uk.org.retep.util.io.tar.TarOutputStream Maven / Gradle / Ivy
/*
* Copyright (c) 1998-2009, Peter T Mount
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the retep.org.uk nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package uk.org.retep.util.io.tar;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
/**
* An OutputStream to write a tar archive.
* @author peter
*/
public class TarOutputStream
extends FilterOutputStream
implements WritableTar
{
private final TarArchiveTracker tracker;
public TarOutputStream( final OutputStream out )
{
super( out );
tracker = new TarArchiveTracker( this )
{
@Override
public void write( final ByteBuffer buffer )
throws IOException
{
TarOutputStream.this.write( buffer );
}
};
}
protected final void write( final ByteBuffer buffer )
throws IOException
{
final int size = buffer.limit()-buffer.position();
write( buffer.array(), buffer.position(), size );
}
/**
* {@inheritDoc }
*/
@Override
public void putNextEntry( final TarHeader header )
throws IOException
{
// Ensure the previous entry was completed... just incase
closeEntry();
final ByteBuffer buffer = header.allocateTarHeader();
header.put( buffer );
buffer.flip();
write( buffer );
}
/**
* {@inheritDoc }
*/
@Override
public void closeEntry()
throws IOException
{
tracker.closeEntry();
}
/**
* {@inheritDoc }
*/
@Override
public void close()
throws IOException
{
tracker.closeArchive();
flush();
super.close();
}
/**
* {@inheritDoc }
*/
@Override
public void write( final byte[] b )
throws IOException
{
write( b, 0, b.length );
}
/**
* {@inheritDoc }
*/
@Override
public void write( final byte[] b, final int off, final int len )
throws IOException
{
out.write( b, off, len );
tracker.recordBytesWritten( len );
}
/**
* {@inheritDoc }
*/
@Override
public void write( final int b )
throws IOException
{
out.write( b );
tracker.recordBytesWritten( 1 );
}
}