public Message.Response execute(QueryState state)
{
try
{
QueryHandler handler = state.getClientState().getCQLQueryHandler();
ParsedStatement.Prepared prepared = handler.getPrepared(statementId);
if (prepared == null)
throw new PreparedQueryNotFoundException(statementId);
options.prepare(prepared.boundNames);
CQLStatement statement = prepared.statement;
if (options.getPageSize() == 0)
throw new ProtocolException("The page size cannot be 0");
UUID tracingId = null;
if (isTracingRequested())
{
tracingId = UUIDGen.getTimeUUID();
state.prepareTracingSession(tracingId);
}
if (state.traceNextQuery())
{
state.createTracingSession();
ImmutableMap.Builder<String, String> builder = ImmutableMap.builder();
if (options.getPageSize() > 0)
builder.put("page_size", Integer.toString(options.getPageSize()));
// TODO we don't have [typed] access to CQL bind variables here. CASSANDRA-4560 is open to add support.
Tracing.instance.begin("Execute CQL3 prepared query", builder.build());
}
Message.Response response = handler.processPrepared(statement, state, options);
if (options.skipMetadata() && response instanceof ResultMessage.Rows)
((ResultMessage.Rows)response).result.metadata.setSkipMetadata();
if (tracingId != null)
response.setTracingId(tracingId);