Serialize and deserialize java Object into a bytearray containing GZIP-ped data.

GZip.java

package tools.distribution.transmission.serialization;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.logging.Level;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

import tools.distribution.Factory;
import tools.distribution.protocol.Message;
/**
 * Basic implementation of Marshaller via java.util.GZIPStream with default settings
 * */
public class GZip extends Serialization implements CapableToSerializeIntoAByteArray {

    public GZip(Factory f) {
        super(f);
    }

    @Override
    public byte[] marshall(Message input) {
        
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        try {
            GZIPOutputStream os = new GZIPOutputStream(bos);
            ObjectOutputStream oos = new ObjectOutputStream(os);
            oos.writeObject(input);
            oos.close();
            os.close();
            bos.close();
        } catch (IOException e) {
            getLogger().log(Level.WARNING, "could not marshal", e);
        }
        return bos.toByteArray();
    }
 
    @Override
    public Message unmarshall(byte[] input) {
        ByteArrayInputStream bis = new ByteArrayInputStream(input);
        Message ret = null;
        try {
            GZIPInputStream gis = new GZIPInputStream(bis);
            ObjectInputStream ois = new ObjectInputStream(gis);
            ret = (Message)ois.readObject();
            ois.close();
            gis.close();
            bis.close();
        } catch (Exception e) {
            getLogger().log(Level.WARNING, "could not unmarshal", e);
        }
        return ret;
    }

}

Just to show someone how streams and object stream implementation works in the java world.