package org.infinispan.marshall;
import org.infinispan.io.ByteBuffer;
import java.io.IOException;
/**
* Abstract Marshaller implementation containing shared implementations.
*
* @author Galder Zamarreño
* @since 4.1
*/
public abstract class AbstractMarshaller implements Marshaller {
protected static final int DEFAULT_BUF_SIZE = 512;
/**
* This is a convenience method for converting an object into a {@link org.infinispan.io.ByteBuffer} which takes
* an estimated size as parameter. A {@link org.infinispan.io.ByteBuffer} allows direct access to the byte
* array with minimal array copying
*
* @param o object to marshall
* @param estimatedSize an estimate of how large the resulting byte array may be
* @return a ByteBuffer
* @throws Exception
*/
protected abstract ByteBuffer objectToBuffer(Object o, int estimatedSize) throws IOException;
@Override
public ByteBuffer objectToBuffer(Object obj) throws IOException {
return objectToBuffer(obj, DEFAULT_BUF_SIZE);
}
@Override
public byte[] objectToByteBuffer(Object o) throws IOException {
return objectToByteBuffer(o, DEFAULT_BUF_SIZE);
}
@Override
public byte[] objectToByteBuffer(Object obj, int estimatedSize) throws IOException {
ByteBuffer b = objectToBuffer(obj, estimatedSize);
byte[] bytes = new byte[b.getLength()];
System.arraycopy(b.getBuf(), b.getOffset(), bytes, 0, b.getLength());
return bytes;
}
@Override
public Object objectFromByteBuffer(byte[] buf) throws IOException, ClassNotFoundException {
return objectFromByteBuffer(buf, 0, buf.length);
}
}