123 lines
2.8 KiB
C
123 lines
2.8 KiB
C
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2014, University in Hagen, Faculty of Mathematics and
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Computer Science, Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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Jan Kristof Nidzwetzki
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//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
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//paragraph [10] Footnote: [{\footnote{] [}}]
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//[TOC] [\tableofcontents]
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[TOC]
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0 Overview
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Helper functions for cassandra
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1 Includes and defines
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*/
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#ifndef __CASANDRA_HELPER__
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#define __CASANDRA_HELPER__
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#include <stdio.h>
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#include <string>
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#include <queue>
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#include <cassert>
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#include <cassandra.h>
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using namespace std;
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//namespace to avoid name conflicts
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namespace cassandra {
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/*
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2.1 Helper Classes
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*/
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class CassandraHelper {
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public:
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/*
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2.1.1 Return true if the string matches a known
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Consistence level, false otherwise
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*/
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static bool checkConsistenceLevel(string consistenceLevel) {
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if ((consistenceLevel.compare("ANY") == 0)
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|| (consistenceLevel.compare("ONE") == 0)
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|| (consistenceLevel.compare("QUORUM") == 0)
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|| (consistenceLevel.compare("ALL") == 0)) {
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return true;
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}
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return false;
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}
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/*
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2.1.1 Converts a string into a ~cql\_consistency\_enum~
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*/
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static CassConsistency convertConsistencyStringToEnum
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(string consistenceLevel) {
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if(consistenceLevel.compare("ANY") == 0) {
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return CASS_CONSISTENCY_ANY;
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}
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if(consistenceLevel.compare("ONE") == 0) {
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return CASS_CONSISTENCY_ONE;
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}
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if(consistenceLevel.compare("QUORUM") == 0) {
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return CASS_CONSISTENCY_QUORUM;
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}
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if(consistenceLevel.compare("ALL") == 0) {
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return CASS_CONSISTENCY_ALL;
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}
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return CASS_CONSISTENCY_ONE;
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}
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/*
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2.1.2 Get the error message from a future and print it
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1. Parameter is the future
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*/
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static void print_error(CassFuture* future) {
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const char* message;
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size_t message_length;
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cass_future_error_message(future, &message, &message_length);
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fprintf(stderr, "Error: %.*s\n", (int)message_length, message);
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}
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};
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}
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#endif
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