icinga2/plugins/thresholds.cpp

145 lines
4.0 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include <vector>
#include "thresholds.h"
#include "boost\algorithm\string.hpp"
#include "boost\lexical_cast.hpp"
using namespace boost::algorithm;
using std::wstring;
threshold parse(const wstring& stri)
{
if (stri.empty())
throw std::invalid_argument("Threshold must not be empty");
wstring str = stri;
//kill whitespace
str.erase((std::remove(str.begin(), str.end(), L" "), str.end()));
bool low = (str.at(0) == L'!');
if (low)
str = wstring(str.begin() + 1, str.end());
bool perc = false;
if (str.at(0) == L'[' && str.at(str.length() - 1) == L']') {//is range
str = wstring(str.begin() + 1, str.end() - 1);
std::vector<wstring> svec;
boost::split(svec, str, boost::is_any_of(L"-"));
if (svec.size() != 2)
throw std::invalid_argument("Threshold range requires two arguments");
wstring str1 = svec.at(0), str2 = svec.at(1);
if (str1.at(str1.length() - 1) == L'%' && str2.at(str2.length() - 1) == L'%') {
perc = true;
str1 = wstring(str1.begin(), str1.end() - 1);
str2 = wstring(str2.begin(), str2.end() - 1);
}
try {
double d1 = boost::lexical_cast<double>(str1);
double d2 = boost::lexical_cast<double>(str2);
return threshold(d1, d2, !low, perc);
} catch (const boost::bad_lexical_cast&) {
throw std::invalid_argument("Unknown Threshold type");
}
} else { //not range
if (str.at(str.length() - 1) == L'%') {
perc = true;
str = wstring(str.begin(), str.end() - 1);
}
try {
double d = boost::lexical_cast<double>(str);
return threshold(d, d, !low, perc);
} catch (const boost::bad_lexical_cast&) {
throw std::invalid_argument("Unknown Threshold type");
}
}
}
Bunit parseBUnit(const wstring& str)
{
wstring wstr = to_upper_copy(str);
if (wstr == L"B")
return BunitB;
if (wstr == L"kB")
return BunitkB;
if (wstr == L"MB")
return BunitMB;
if (wstr == L"GB")
return BunitGB;
if (wstr == L"TB")
return BunitTB;
throw std::invalid_argument("Unknown unit type");
}
wstring BunitStr(const Bunit& unit)
{
switch (unit) {
case BunitB:
return L"B";
case BunitkB:
return L"kB";
case BunitMB:
return L"MB";
case BunitGB:
return L"GB";
case BunitTB:
return L"TB";
}
return NULL;
}
Tunit parseTUnit(const wstring& str) {
wstring wstr = to_lower_copy(str);
if (wstr == L"ms")
return TunitMS;
if (wstr == L"s")
return TunitS;
if (wstr == L"m")
return TunitM;
if (wstr == L"h")
return TunitH;
throw std::invalid_argument("Unknown unit type");
}
wstring TunitStr(const Tunit& unit)
{
switch (unit) {
case TunitMS:
return L"ms";
case TunitS:
return L"s";
case TunitM:
return L"m";
case TunitH:
return L"h";
}
return NULL;
}