/** {@inheritDoc} */
@Override
public ResultSet executeQuery(String sql) throws SQLException {
ensureNotClosed();
rs = null;
if (sql == null || sql.isEmpty()) throw new SQLException("SQL query is empty");
try {
byte[] packet =
conn.client()
.compute()
.execute(
TASK_NAME,
JdbcUtils.marshalArgument(
JdbcUtils.taskArgument(
conn.nodeId(),
conn.cacheName(),
sql,
timeout,
args,
fetchSize,
maxRows)));
byte status = packet[0];
byte[] data = new byte[packet.length - 1];
U.arrayCopy(packet, 1, data, 0, data.length);
if (status == 1) throw JdbcUtils.unmarshalError(data);
else {
List<?> msg = JdbcUtils.unmarshal(data);
assert msg.size() == 7;
UUID nodeId = (UUID) msg.get(0);
UUID futId = (UUID) msg.get(1);
List<String> tbls = (List<String>) msg.get(2);
List<String> cols = (List<String>) msg.get(3);
List<String> types = (List<String>) msg.get(4);
Collection<List<Object>> fields = (Collection<List<Object>>) msg.get(5);
boolean finished = (Boolean) msg.get(6);
return new JdbcResultSet(
this, nodeId, futId, tbls, cols, types, fields, finished, fetchSize);
}
} catch (GridClientException e) {
throw new SQLException("Failed to query Ignite.", e);
}
}
