mirror of https://github.com/Icinga/icinga2.git
84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program 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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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "i2-dyn.h"
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using namespace icinga;
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Expression::Expression(string key, ExpressionOperator op, Variant value, long debuginfo)
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: Key(key), Operator(op), Value(value), DebugInfo(debuginfo)
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{
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}
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void Expression::Execute(const Dictionary::Ptr& dictionary) const
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{
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Variant oldValue, newValue;
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dictionary->GetProperty(Key, &oldValue);
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ExpressionList::Ptr exprl;
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if (Value.GetType() == VariantObject)
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exprl = dynamic_pointer_cast<ExpressionList>(Value.GetObject());
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newValue = Value;
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switch (Operator) {
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case OperatorSet:
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if (exprl) {
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Dictionary::Ptr dict = make_shared<Dictionary>();
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exprl->Execute(dict);
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newValue = dict;
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}
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break;
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case OperatorPlus:
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if (exprl) {
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Dictionary::Ptr dict;
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if (oldValue.GetType() == VariantObject)
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dict = dynamic_pointer_cast<Dictionary>(oldValue.GetObject());
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if (!dict) {
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if (!oldValue.IsEmpty()) {
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stringstream message;
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message << "Wrong argument types for += (non-dictionary and dictionary) (in line " << DebugInfo << ")";
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throw domain_error(message.str());
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}
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dict = make_shared<Dictionary>();
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}
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exprl->Execute(dict);
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newValue = dict;
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} else {
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stringstream message;
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message << "+= only works for dictionaries (in line " << DebugInfo << ")";
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throw domain_error(message.str());
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}
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break;
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default:
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assert(!"Not yet implemented.");
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break;
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}
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dictionary->SetProperty(Key, newValue);
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}
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