package org.infinispan.client.hotrod.impl.operations;
import net.jcip.annotations.Immutable;
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.Map;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Implements to the stats 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 StatsOperation extends RetryOnFailureOperation<Map<String, String>> {
public StatsOperation(Codec codec, TransportFactory transportFactory,
byte[] cacheName, AtomicInteger topologyId, Flag[] flags) {
super(codec, transportFactory, cacheName, topologyId, flags);
}
@Override
protected Transport getTransport(int retryCount) {
return transportFactory.getTransport();
}
@Override
protected Map<String, String> executeOperation(Transport transport) {
Map<String, String> result;
// 1) write header
HeaderParams params = writeHeader(transport, STATS_REQUEST);
transport.flush();
readHeaderAndValidate(transport, params);
int nrOfStats = transport.readVInt();
result = new HashMap<String, String>();
for (int i = 0; i < nrOfStats; i++) {
String statName = transport.readString();
String statValue = transport.readString();
result.put(statName, statValue);
}
return result;
}
}