/*
* 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 org.infinispan.client.hotrod.Flag;
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.HashMap;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Reads more keys at a time. Specified <a href="http://community.jboss.org/wiki/HotRodBulkGet-Design">here</a>.
*
* @author Mircea.Markus@jboss.com
* @since 4.1
*/
public class BulkGetOperation extends RetryOnFailureOperation {
private final int entryCount;
public BulkGetOperation(Codec codec, TransportFactory transportFactory, byte[] cacheName, AtomicInteger topologyId, Flag[] flags, int entryCount) {
super(codec, transportFactory, cacheName, topologyId, flags);
this.entryCount = entryCount;
}
@Override
protected Transport getTransport(int retryCount) {
return transportFactory.getTransport();
}
@Override
protected Object executeOperation(Transport transport) {
HeaderParams params = writeHeader(transport, BULK_GET_REQUEST);
transport.writeVInt(entryCount);
transport.flush();
readHeaderAndValidate(transport, params);
HashMap result = new HashMap();
while ( transport.readByte() == 1) { //there's more!
result.put(transport.readArray(), transport.readArray());
}
return result;
}
}