Examples with RouteResultset com.actiontech.dble.route.RouteResultset used on opensource projects

Example 21 with RouteResultset

use of com.actiontech.dble.route.RouteResultset in project dble by actiontech.

the class ShowVariables method response.

public static void response(ServerConnection c, String stmt) {
    String db = c.getSchema() != null ? c.getSchema() : SchemaUtil.getRandomDb();
    SchemaConfig schema = DbleServer.getInstance().getConfig().getSchemas().get(db);
    if (schema == null) {
        c.writeErrMessage("42000", "Unknown database '" + db + "'", ErrorCode.ER_BAD_DB_ERROR);
        return;
    }
    RouteResultset rrs = new RouteResultset(stmt, ServerParse.SHOW);
    try {
        RouterUtil.routeToSingleNode(rrs, schema.getRandomDataNode());
        ShowVariablesHandler handler = new ShowVariablesHandler(rrs, c.getSession2());
        handler.execute();
    } catch (Exception e) {
        // Could this only be ER_PARSE_ERROR?
        c.writeErrMessage(ErrorCode.ER_PARSE_ERROR, e.toString());
    }
}

Example 22 with RouteResultset

use of com.actiontech.dble.route.RouteResultset in project dble by actiontech.

the class MergeBuilder method constructByStatement.

public RouteResultset constructByStatement(String sql, SQLSelectStatement select) throws SQLException {
    ServerSchemaStatVisitor visitor = new ServerSchemaStatVisitor();
    DruidParser druidParser = new DruidSingleUnitSelectParser();
    RouteResultset rrs = new RouteResultset(sql, ServerParse.SELECT);
    LayerCachePool pool = DbleServer.getInstance().getRouterService().getTableId2DataNodeCache();
    SchemaConfig schemaConfig = schemaConfigMap.get(node.getReferedTableNodes().get(0).getSchema());
    return RouterUtil.routeFromParser(druidParser, schemaConfig, rrs, select, sql, pool, visitor, session.getSource());
}