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.query.RemoteQuery;
import org.infinispan.client.hotrod.impl.transport.Transport;
import org.infinispan.client.hotrod.impl.transport.TransportFactory;
import org.infinispan.commons.CacheException;
import org.infinispan.protostream.ProtobufUtil;
import org.infinispan.protostream.SerializationContext;
import org.infinispan.query.remote.client.QueryRequest;
import org.infinispan.query.remote.client.QueryResponse;
import java.io.IOException;
import java.net.SocketAddress;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @author anistor@redhat.com
* @since 6.0
*/
public class QueryOperation extends RetryOnFailureOperation<QueryResponse> {
private final RemoteQuery remoteQuery;
public QueryOperation(Codec codec, TransportFactory transportFactory, byte[] cacheName, AtomicInteger topologyId,
Flag[] flags, RemoteQuery remoteQuery) {
super(codec, transportFactory, cacheName, topologyId, flags);
this.remoteQuery = remoteQuery;
}
@Override
protected Transport getTransport(int retryCount, Set<SocketAddress> failedServers) {
return transportFactory.getTransport(failedServers, cacheName);
}
@Override
protected QueryResponse executeOperation(Transport transport) {
HeaderParams params = writeHeader(transport, QUERY_REQUEST);
QueryRequest queryRequest = new QueryRequest();
queryRequest.setJpqlString(remoteQuery.getJpqlString());
queryRequest.setStartOffset(remoteQuery.getStartOffset());
queryRequest.setMaxResults(remoteQuery.getMaxResults());
SerializationContext serCtx = remoteQuery.getSerializationContext();
byte[] requestBytes;
try {
requestBytes = ProtobufUtil.toByteArray(serCtx, queryRequest);
} catch (IOException e) {
throw new CacheException(e); //todo [anistor] need better exception handling
}
transport.writeArray(requestBytes);
transport.flush();
readHeaderAndValidate(transport, params);
byte[] responseBytes = transport.readArray();
try {
QueryResponse queryResponse = ProtobufUtil.fromByteArray(serCtx, responseBytes, QueryResponse.class);
return queryResponse;
} catch (IOException e) {
throw new CacheException(e); //todo [anistor] need better exception handling
}
}
}