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 * JBoss, Home of Professional Open Source
 * Copyright 2010 Red Hat Inc. and/or its affiliates and other
 * contributors as indicated by the @author tags. All rights reserved.
 * See the copyright.txt in the distribution for a full listing of
 * individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.infinispan.client.hotrod.impl.operations;

import net.jcip.annotations.Immutable;
import org.infinispan.client.hotrod.Flag;
import org.infinispan.client.hotrod.impl.VersionedOperationResponse;
import org.infinispan.client.hotrod.impl.protocol.Codec;
import org.infinispan.client.hotrod.impl.protocol.HeaderParams;
import org.infinispan.client.hotrod.impl.transport.Transport;
import org.infinispan.client.hotrod.impl.transport.TransportFactory;

import java.util.concurrent.atomic.AtomicInteger;

/**
 * Implements "removeIfUnmodified" operation as defined 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 RemoveIfUnmodifiedOperation extends AbstractKeyOperation<VersionedOperationResponse> {

   private final long version;

   public RemoveIfUnmodifiedOperation(Codec codec, TransportFactory transportFactory,
            byte[] key, byte[] cacheName, AtomicInteger topologyId, Flag[] flags, long version) {
      super(codec, transportFactory, key, cacheName, topologyId, flags);
      this.version = version;
   }

   @Override
   protected VersionedOperationResponse executeOperation(Transport transport) {
      // 1) write header
      HeaderParams params = writeHeader(transport, REMOVE_IF_UNMODIFIED_REQUEST);

      //2) write message body
      transport.writeArray(key);
      transport.writeLong(version);
      transport.flush();

      //process response and return
      return returnVersionedOperationResponse(transport, params);
   }
}