/*
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Created on May 2, 2009
*/
package com.bigdata.io.compression;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.zip.Deflater;
/**
* A serializable compression provider based on {@link RecordCompressor}.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class DefaultRecordCompressorFactory implements
IRecordCompressorFactory<RecordCompressor>, Externalizable {
/**
*
*/
private static final long serialVersionUID = 6440561103264583846L;
private int level;
/**
* Instance configured for {@link Deflater#BEST_SPEED}.
*/
public IRecordCompressorFactory<RecordCompressor> BEST_SPEED = new DefaultRecordCompressorFactory(
Deflater.BEST_SPEED);
/**
* Instance configured for {@link Deflater#BEST_COMPRESSION}.
*/
public IRecordCompressorFactory<RecordCompressor> BEST_COMPRESSION = new DefaultRecordCompressorFactory(
Deflater.BEST_COMPRESSION);
public String toString() {
return getClass().getName() + "{level=" + level + "}";
}
private DefaultRecordCompressorFactory(final int level) {
this.level = level;
}
public RecordCompressor getInstance() {
return new RecordCompressor(level);
}
public void readExternal(final ObjectInput in) throws IOException,
ClassNotFoundException {
level = in.readInt();
}
public void writeExternal(final ObjectOutput out) throws IOException {
out.writeInt(level);
}
}