mirror of https://github.com/Icinga/icinga2.git
624 lines
17 KiB
C++
624 lines
17 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2014 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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#ifndef EXPRESSION_H
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#define EXPRESSION_H
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#include "config/i2-config.hpp"
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#include "base/debuginfo.hpp"
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#include "base/array.hpp"
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#include "base/dictionary.hpp"
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#include <boost/foreach.hpp>
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namespace icinga
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{
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struct DebugHint
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{
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std::vector<std::pair<String, DebugInfo> > Messages;
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std::map<String, DebugHint> Children;
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inline void AddMessage(const String& message, const DebugInfo& di)
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{
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Messages.push_back(std::make_pair(message, di));
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}
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inline DebugHint *GetChild(const String& name)
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{
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return &Children[name];
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}
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Dictionary::Ptr ToDictionary(void) const;
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};
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enum CombinedSetOp
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{
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OpSetLiteral,
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OpSetAdd,
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OpSetSubtract,
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OpSetMultiply,
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OpSetDivide
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};
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/**
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* @ingroup config
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*/
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class I2_CONFIG_API Expression
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{
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public:
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virtual ~Expression(void);
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Value Evaluate(const Object::Ptr& context, DebugHint *dhint = NULL) const;
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const = 0;
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virtual const DebugInfo& GetDebugInfo(void) const;
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public:
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static Value FunctionWrapper(const std::vector<Value>& arguments,
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const std::vector<String>& funcargs,
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const boost::shared_ptr<Expression>& expr, const Object::Ptr& scope);
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static bool HasField(const Object::Ptr& context, const String& field);
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static Value GetField(const Object::Ptr& context, const String& field);
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static void SetField(const Object::Ptr& context, const String& field, const Value& value);
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};
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I2_CONFIG_API std::vector<Expression *> MakeIndexer(const String& index1);
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class I2_CONFIG_API OwnedExpression : public Expression
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{
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public:
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OwnedExpression(const boost::shared_ptr<Expression>& expression)
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: m_Expression(expression)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const
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{
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return m_Expression->DoEvaluate(context, dhint);
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}
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virtual const DebugInfo& GetDebugInfo(void) const
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{
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return m_Expression->GetDebugInfo();
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}
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private:
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boost::shared_ptr<Expression> m_Expression;
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};
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class I2_CONFIG_API LiteralExpression : public Expression
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{
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public:
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LiteralExpression(const Value& value = Value());
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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Value m_Value;
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};
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inline LiteralExpression *MakeLiteral(const Value& literal = Value())
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{
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return new LiteralExpression(literal);
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}
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class I2_CONFIG_API DebuggableExpression : public Expression
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{
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public:
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DebuggableExpression(const DebugInfo& debugInfo = DebugInfo())
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: m_DebugInfo(debugInfo)
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{ }
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protected:
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virtual const DebugInfo& GetDebugInfo(void) const;
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DebugInfo m_DebugInfo;
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};
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class I2_CONFIG_API UnaryExpression : public DebuggableExpression
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{
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public:
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UnaryExpression(Expression *operand, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Operand(operand)
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{ }
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~UnaryExpression(void)
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{
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delete m_Operand;
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}
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protected:
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Expression *m_Operand;
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};
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class I2_CONFIG_API BinaryExpression : public DebuggableExpression
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{
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public:
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BinaryExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Operand1(operand1), m_Operand2(operand2)
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{ }
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~BinaryExpression(void)
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{
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delete m_Operand1;
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delete m_Operand2;
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}
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protected:
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Expression *m_Operand1;
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Expression *m_Operand2;
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};
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class I2_CONFIG_API VariableExpression : public DebuggableExpression
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{
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public:
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VariableExpression(const String& variable, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Variable(variable)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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String m_Variable;
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};
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class I2_CONFIG_API NegateExpression : public UnaryExpression
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{
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public:
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NegateExpression(Expression *operand, const DebugInfo& debugInfo = DebugInfo())
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: UnaryExpression(operand, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API LogicalNegateExpression : public UnaryExpression
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{
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public:
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LogicalNegateExpression(Expression *operand, const DebugInfo& debugInfo = DebugInfo())
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: UnaryExpression(operand, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API AddExpression : public BinaryExpression
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{
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public:
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AddExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API SubtractExpression : public BinaryExpression
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{
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public:
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SubtractExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API MultiplyExpression : public BinaryExpression
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{
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public:
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MultiplyExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API DivideExpression : public BinaryExpression
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{
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public:
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DivideExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API BinaryAndExpression : public BinaryExpression
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{
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public:
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BinaryAndExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API BinaryOrExpression : public BinaryExpression
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{
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public:
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BinaryOrExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API ShiftLeftExpression : public BinaryExpression
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{
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public:
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ShiftLeftExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API ShiftRightExpression : public BinaryExpression
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{
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public:
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ShiftRightExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API EqualExpression : public BinaryExpression
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{
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public:
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EqualExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API NotEqualExpression : public BinaryExpression
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{
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public:
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NotEqualExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API LessThanExpression : public BinaryExpression
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{
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public:
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LessThanExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API GreaterThanExpression : public BinaryExpression
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{
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public:
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GreaterThanExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API LessThanOrEqualExpression : public BinaryExpression
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{
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public:
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LessThanOrEqualExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API GreaterThanOrEqualExpression : public BinaryExpression
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{
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public:
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GreaterThanOrEqualExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API InExpression : public BinaryExpression
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{
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public:
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InExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API NotInExpression : public BinaryExpression
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{
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public:
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NotInExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API LogicalAndExpression : public BinaryExpression
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{
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public:
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LogicalAndExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API LogicalOrExpression : public BinaryExpression
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{
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public:
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LogicalOrExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API FunctionCallExpression : public DebuggableExpression
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{
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public:
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FunctionCallExpression(Expression *fname, const std::vector<Expression *>& args, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_FName(fname), m_Args(args)
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{ }
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~FunctionCallExpression(void)
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{
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delete m_FName;
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BOOST_FOREACH(Expression *expr, m_Args)
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delete expr;
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}
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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public:
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Expression *m_FName;
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std::vector<Expression *> m_Args;
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};
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class I2_CONFIG_API ArrayExpression : public DebuggableExpression
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{
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public:
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ArrayExpression(const std::vector<Expression *>& expressions, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Expressions(expressions)
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{ }
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~ArrayExpression(void)
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{
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BOOST_FOREACH(Expression *expr, m_Expressions)
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delete expr;
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}
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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std::vector<Expression *> m_Expressions;
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};
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class I2_CONFIG_API DictExpression : public DebuggableExpression
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{
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public:
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DictExpression(const std::vector<Expression *>& expressions, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Expressions(expressions), m_Inline(false)
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{ }
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~DictExpression(void)
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{
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BOOST_FOREACH(Expression *expr, m_Expressions)
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delete expr;
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}
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void MakeInline(void);
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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std::vector<Expression *> m_Expressions;
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bool m_Inline;
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};
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class I2_CONFIG_API SetExpression : public DebuggableExpression
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{
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public:
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SetExpression(const std::vector<Expression *>& indexer, CombinedSetOp op, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Op(op), m_Indexer(indexer), m_Operand2(operand2)
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{ }
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~SetExpression(void)
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{
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BOOST_FOREACH(Expression *expr, m_Indexer)
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delete expr;
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delete m_Operand2;
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}
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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CombinedSetOp m_Op;
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std::vector<Expression *> m_Indexer;
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Expression *m_Operand2;
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};
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class I2_CONFIG_API IndexerExpression : public BinaryExpression
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{
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public:
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IndexerExpression(Expression *operand1, Expression *operand2, const DebugInfo& debugInfo = DebugInfo())
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: BinaryExpression(operand1, operand2, debugInfo)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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};
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class I2_CONFIG_API ImportExpression : public DebuggableExpression
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{
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public:
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ImportExpression(Expression *type, Expression *name, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Type(type), m_Name(name)
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{ }
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~ImportExpression(void)
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{
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delete m_Type;
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delete m_Name;
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}
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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Expression *m_Type;
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Expression *m_Name;
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};
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class I2_CONFIG_API FunctionExpression : public DebuggableExpression
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{
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public:
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FunctionExpression(const String& name, const std::vector<String>& args, Expression *expression, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Name(name), m_Args(args), m_Expression(expression)
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{ }
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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String m_Name;
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std::vector<String> m_Args;
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boost::shared_ptr<Expression> m_Expression;
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};
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class I2_CONFIG_API ApplyExpression : public DebuggableExpression
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{
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public:
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ApplyExpression(const String& type, const String& target, Expression *name,
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Expression *filter, const String& fkvar, const String& fvvar,
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Expression *fterm, Expression *expression, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Type(type), m_Target(target),
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m_Name(name), m_Filter(filter), m_FKVar(fkvar), m_FVVar(fvvar),
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m_FTerm(fterm), m_Expression(expression)
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{ }
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~ApplyExpression(void)
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{
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delete m_Name;
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}
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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String m_Type;
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String m_Target;
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Expression *m_Name;
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boost::shared_ptr<Expression> m_Filter;
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String m_FKVar;
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String m_FVVar;
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boost::shared_ptr<Expression> m_FTerm;
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boost::shared_ptr<Expression> m_Expression;
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};
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class I2_CONFIG_API ObjectExpression : public DebuggableExpression
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{
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public:
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ObjectExpression(bool abstract, const String& type, Expression *name, Expression *filter, const String& zone, Expression *expression, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_Abstract(abstract), m_Type(type), m_Name(name), m_Filter(filter), m_Zone(zone), m_Expression(expression)
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{ }
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~ObjectExpression(void)
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{
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delete m_Name;
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}
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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bool m_Abstract;
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String m_Type;
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Expression *m_Name;
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boost::shared_ptr<Expression> m_Filter;
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String m_Zone;
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boost::shared_ptr<Expression> m_Expression;
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};
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class I2_CONFIG_API ForExpression : public DebuggableExpression
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{
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public:
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ForExpression(const String& fkvar, const String& fvvar, Expression *value, Expression *expression, const DebugInfo& debugInfo = DebugInfo())
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: DebuggableExpression(debugInfo), m_FKVar(fkvar), m_FVVar(fvvar), m_Value(value), m_Expression(expression)
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{ }
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~ForExpression(void)
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{
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delete m_Value;
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delete m_Expression;
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}
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protected:
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virtual Value DoEvaluate(const Object::Ptr& context, DebugHint *dhint) const;
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private:
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String m_FKVar;
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String m_FVVar;
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Expression *m_Value;
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Expression *m_Expression;
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};
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}
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#endif /* EXPRESSION_H */
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