org.infinispan.client.hotrod.impl.operations.BulkGetKeysOperation Maven / Gradle / Ivy

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Infinispan Remote Client All-in-One module

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package org.infinispan.client.hotrod.impl.operations;

import java.net.SocketAddress;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;

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;

/**
 * Reads all keys. Similar to BulkGet, but without the entry values.
 *
 * @author Ray Tsang
 * @since 5.2
 */
public class BulkGetKeysOperation extends RetryOnFailureOperation> {
   private final int scope;

   public BulkGetKeysOperation(Codec codec, TransportFactory transportFactory, byte[] cacheName, AtomicInteger topologyId, Flag[] flags, int scope) {
      super(codec, transportFactory, cacheName, topologyId, flags);
      this.scope = scope;
   }
   
   @Override
   protected Transport getTransport(int retryCount, Set failedServers) {
      return transportFactory.getTransport(failedServers, cacheName);
   }

   @Override
   protected Set executeOperation(Transport transport) {
      HeaderParams params = writeHeader(transport, BULK_GET_KEYS_REQUEST);
      transport.writeVInt(scope);
      transport.flush();
      readHeaderAndValidate(transport, params);
      Set result = new HashSet();
      while ( transport.readByte() == 1) { //there's more!
         result.add(transport.readArray());
      }
      return result;
   }
}