private int fetch_reply_struct() {
try {
rows_num = rep_type.getField("out_columns_num").getInt(null);
} catch (NoSuchFieldException | IllegalAccessException ex) {
real_requester.tell(new DbmsLayerError(ex), ActorRef.noSender());
return (-1);
}
try {
lines_num = rep_type.getField("out_lines_num").getInt(null);
} catch (NoSuchFieldException | IllegalAccessException ex) {
}
return (0);
}
@Override
public void onReceive(Object message) {
do {
if (message instanceof QueryGenericArgument) {
reincarnate((QueryGenericArgument) message);
break;
}
if (message instanceof GetDbmsStatementReply) {
Statement stmt = ((GetDbmsStatementReply) message).stmt;
getSender()
.tell(
new DbmsExecuteStmtRequest(stmt, query, request_properties, autocommit), getSelf());
break;
}
if (message instanceof GetDbmsPreparedStatementReply) {
PreparedStatement p_stmt = ((GetDbmsPreparedStatementReply) message).p_stmt;
try {
for (int param_idx = 0; param_idx < values.size(); param_idx++)
p_stmt.setObject(param_idx + 1, values.get(param_idx));
getSender()
.tell(
new DbmsExecutePrepStmtRequest(p_stmt, request_properties, autocommit),
getSelf());
} catch (SQLException ex) {
real_requester.tell(new DbmsLayerError(ex), getSelf());
if (policy == DbmsLayerProvider.DeathPolicy.SUICIDE) getContext().stop(getSelf());
}
break;
}
if (message instanceof DBMSReply) {
boolean has_result = false;
DBMSReply dbms_result = (DBMSReply) message;
ResultSet result = dbms_result.resultSet;
Object output_obj = null, output_data = null;
ArrayList<Object> result_list = new ArrayList<>();
try {
switch (dbms_result.request_mode) {
case WRITE:
output_data = dbms_result.ddl_retval;
break;
case READ_WRITE:
case READ_ONLY:
output_data = null;
}
if (result != null) {
for (int cur_line = 0; cur_line < lines_num; cur_line++) {
if (result.next()) {
for (int cur_row = 0; cur_row < rows_num; cur_row++)
result_list.add(result.getObject(cur_row + 1));
} else break;
}
} else result_list.add(dbms_result.ddl_retval);
output_obj =
rep_type
.getConstructor(Object[].class)
.newInstance(new Object[] {result_list.toArray()});
} catch (SQLException ex) {
if (has_result == false) output_obj = new DbmsRemoteDbError(ex);
else output_obj = new DbmsOutputFormatError(ex);
} catch (
Exception
ex) // (NoSuchMethodException | IllegalAccessException | InstantiationException |
// InvocationTargetException ex)
{
output_obj =
new DbmsLayerError(
ex,
" INPUT CLASS: "
+ rep_type.getName()
+ " OUT_DATA ARG LEN: "
+ result_list.size());
} finally {
if (result != null) closeResult(result);
real_requester.tell(output_obj, getSelf());
if (policy == DbmsLayerProvider.DeathPolicy.SUICIDE) getContext().stop(getSelf());
}
break;
}
if (message instanceof DbmsWorkerCmdRequest) {
dbms_actor.forward(message, getContext());
break;
}
if (message instanceof DbmsWorkerCmdReply) {
DbmsWorkerCmdReply reply = (DbmsWorkerCmdReply) message;
if (reply.originalRequest != DbmsWorkerCmdRequest.Command.CLOSE_STMT)
log.error("UNEXPECTED BEHAVIOUR");
break;
}
if (message instanceof DbmsException) {
real_requester.tell(message, getSelf());
if (policy == DbmsLayerProvider.DeathPolicy.SUICIDE) getContext().stop(getSelf());
break;
}
real_requester.tell(
new DbmsLayerError(message.getClass().getName() + " UNHANDLED RECEIVED"), getSelf());
if (policy == DbmsLayerProvider.DeathPolicy.SUICIDE) getContext().stop(getSelf());
} while (false);
}
