org.mapdb.serializer.SerializerJava Maven / Gradle / Ivy

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MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap memory. It is a fast, scalable and easy to use embedded Java database.

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package org.mapdb.serializer;

import org.mapdb.CC;
import org.mapdb.DataInput2;
import org.mapdb.DataOutput2;
import org.mapdb.Serializer;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;

/**
 * Created by jan on 2/28/16.
 */
public class SerializerJava extends GroupSerializerObjectArray {
    @Override
    public void serialize(DataOutput2 out, Object value) throws IOException {
        ObjectOutputStream out2 = new ObjectOutputStream((OutputStream) out);
        out2.writeObject(value);
        out2.flush();
    }

    @Override
    public Object deserialize(DataInput2 in, int available) throws IOException {
        try {
            ObjectInputStream in2 = new ObjectInputStream(new DataInput2.DataInputToStream(in));
            return in2.readObject();
        } catch (ClassNotFoundException e) {
            throw new IOException(e);
        }
    }

    @Override
    public Object[] valueArrayDeserialize(DataInput2 in, int size) throws IOException {
        try {
            ObjectInputStream in2 = new ObjectInputStream(new DataInput2.DataInputToStream(in));
            Object ret =  in2.readObject();
            if(CC.PARANOID && size!=valueArraySize(ret))
                throw new AssertionError();
            return (Object[]) ret;
        } catch (ClassNotFoundException e) {
            throw new IOException(e);
        }
    }

    @Override
    public void valueArraySerialize(DataOutput2 out, Object vals) throws IOException {
        ObjectOutputStream out2 = new ObjectOutputStream((OutputStream) out);
        out2.writeObject(vals);
        out2.flush();
    }
}