icinga2/lib/icinga/macroprocessor.hpp

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/******************************************************************************
* Icinga 2 *
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* Copyright (C) 2012-2015 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. *
******************************************************************************/
#ifndef MACROPROCESSOR_H
#define MACROPROCESSOR_H
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#include "icinga/i2-icinga.hpp"
#include "icinga/checkable.hpp"
#include "base/value.hpp"
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#include <boost/function.hpp>
#include <vector>
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namespace icinga
{
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/**
* Resolves macros.
*
* @ingroup icinga
*/
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class I2_ICINGA_API MacroProcessor
{
public:
typedef boost::function<Value (const Value&)> EscapeCallback;
typedef std::pair<String, Object::Ptr> ResolverSpec;
typedef std::vector<ResolverSpec> ResolverList;
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static Value ResolveMacros(const Value& str, const ResolverList& resolvers,
const CheckResult::Ptr& cr = CheckResult::Ptr(), String *missingMacro = NULL,
const EscapeCallback& escapeFn = EscapeCallback(),
const Dictionary::Ptr& resolvedMacros = Dictionary::Ptr(),
bool useResolvedMacros = false);
private:
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MacroProcessor(void);
static bool ResolveMacro(const String& macro, const ResolverList& resolvers,
const CheckResult::Ptr& cr, Value *result, bool *recursive_macro);
static Value InternalResolveMacros(const String& str,
const ResolverList& resolvers, const CheckResult::Ptr& cr,
String *missingMacro, const EscapeCallback& escapeFn,
const Dictionary::Ptr& resolvedMacros, bool useResolvedMacros,
int recursionLevel = 0);
static Value InternalResolveMacrosShim(const std::vector<Value>& args, const ResolverList& resolvers,
const CheckResult::Ptr& cr, String *missingMacro,
const MacroProcessor::EscapeCallback& escapeFn, const Dictionary::Ptr& resolvedMacros,
bool useResolvedMacros, int recursionLevel);
static Value EvaluateFunction(const Function::Ptr& func, const ResolverList& resolvers,
const CheckResult::Ptr& cr, String *missingMacro,
const MacroProcessor::EscapeCallback& escapeFn, const Dictionary::Ptr& resolvedMacros,
bool useResolvedMacros, int recursionLevel);
};
}
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#endif /* MACROPROCESSOR_H */