package org.infinispan.client.hotrod.impl.operations;
import java.io.IOException;
import java.net.SocketAddress;
import java.time.Instant;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
import org.infinispan.client.hotrod.configuration.ClientIntelligence;
import org.infinispan.client.hotrod.exceptions.HotRodClientException;
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.protostream.EnumMarshaller;
import org.infinispan.protostream.ProtobufUtil;
import org.infinispan.protostream.SerializationContext;
import org.infinispan.query.remote.client.QueryRequest;
import org.infinispan.query.remote.client.QueryResponse;
/**
* @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,
int flags, ClientIntelligence clientIntelligence, RemoteQuery remoteQuery) {
super(codec, transportFactory, cacheName, topologyId, flags, clientIntelligence);
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.setQueryString(remoteQuery.getQueryString());
if (remoteQuery.getStartOffset() > 0) {
queryRequest.setStartOffset(remoteQuery.getStartOffset());
}
if (remoteQuery.getMaxResults() >= 0) {
queryRequest.setMaxResults(remoteQuery.getMaxResults());
}
queryRequest.setNamedParameters(getNamedParameters());
SerializationContext serCtx = remoteQuery.getSerializationContext();
byte[] requestBytes;
try {
requestBytes = ProtobufUtil.toByteArray(serCtx, queryRequest);
} catch (IOException e) {
throw new HotRodClientException(e);
}
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 HotRodClientException(e);
}
}
private List<QueryRequest.NamedParameter> getNamedParameters() {
Map<String, Object> namedParameters = remoteQuery.getParameters();
if (namedParameters == null || namedParameters.isEmpty()) {
return null;
}
List<QueryRequest.NamedParameter> params = new ArrayList<QueryRequest.NamedParameter>(namedParameters.size());
for (Map.Entry<String, Object> e : namedParameters.entrySet()) {
Object value = e.getValue();
// todo [anistor] not the most elegant way of doing conversion
if (value instanceof Enum) {
EnumMarshaller encoder = (EnumMarshaller) remoteQuery.getSerializationContext().getMarshaller(value.getClass());
value = encoder.encode((Enum) value);
} else if (value instanceof Boolean) {
value = value.toString();
} else if (value instanceof Date) {
value = ((Date) value).getTime();
} else if (value instanceof Instant) {
value = ((Instant) value).toEpochMilli();
}
params.add(new QueryRequest.NamedParameter(e.getKey(), value));
}
return params;
}
}