package org.infinispan.client.hotrod.impl.operations;
import java.util.concurrent.atomic.AtomicInteger;
import org.infinispan.client.hotrod.configuration.ClientIntelligence;
import org.infinispan.client.hotrod.impl.protocol.Codec;
import org.infinispan.client.hotrod.impl.protocol.HotRodConstants;
import org.infinispan.client.hotrod.impl.transport.Transport;
import org.infinispan.client.hotrod.impl.transport.TransportFactory;
import net.jcip.annotations.Immutable;
/**
* Implements "get" operation as described by <a href="http://community.jboss.org/wiki/HotRodProtocol">Hot Rod protocol specification</a>.
*
* @author Mircea.Markus@jboss.com
* @since 4.1
*/
@Immutable
public class GetOperation<V> extends AbstractKeyOperation<V> {
public GetOperation(Codec codec, TransportFactory transportFactory,
Object key, byte[] keyBytes, byte[] cacheName, AtomicInteger topologyId, int flags,
ClientIntelligence clientIntelligence) {
super(codec, transportFactory, key, keyBytes, cacheName, topologyId, flags, clientIntelligence);
}
@Override
public V executeOperation(Transport transport) {
V result = null;
short status = sendKeyOperation(keyBytes, transport, GET_REQUEST, GET_RESPONSE);
if (HotRodConstants.isNotExist(status)) {
result = null;
} else {
if (HotRodConstants.isSuccess(status)) {
result = codec.readUnmarshallByteArray(transport, status);
}
}
return result;
}
}