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/**
* @file
* @author 2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* 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.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#ifndef XPATHDATAMODEL_H_KN8TWG0V
#define XPATHDATAMODEL_H_KN8TWG0V
#include "uscxml/InterpreterInfo.h"
#include "uscxml/plugins/DataModel.h"
#include <list>
#ifdef BUILD_AS_PLUGINS
#include "uscxml/plugins/Plugins.h"
#endif
namespace uscxml {
class Event;
class Data;
}
namespace uscxml {
class XPathFunctionIn : public Arabica::XPath::BooleanXPathFunction<std::string> {
public:
XPathFunctionIn(int minArgs,
int maxArgs,
const std::vector<Arabica::XPath::XPathExpression<std::string> >& args,
InterpreterInfo* interpreter) :
Arabica::XPath::BooleanXPathFunction<std::string>(minArgs, maxArgs, args),
_interpreter(interpreter) {}
protected:
bool doEvaluate(const Arabica::DOM::Node<std::string>& context,
const Arabica::XPath::ExecutionContext<std::string>& executionContext) const;
InterpreterInfo* _interpreter;
};
class XPathFunctionResolver : public Arabica::XPath::FunctionResolver<std::string> {
public:
virtual ~XPathFunctionResolver() { }
virtual Arabica::XPath::XPathFunction<std::string>*
resolveFunction(const std::string& namespace_uri,
const std::string& name,
const std::vector<Arabica::XPath::XPathExpression<std::string> >& argExprs) const;
virtual std::vector<std::pair<std::string, std::string> > validNames() const;
void setInterpreter(InterpreterInfo* interpreter) {
_interpreter = interpreter;
}
protected:
Arabica::XPath::StandardXPathFunctionResolver<std::string> _xpathFuncRes;
InterpreterInfo* _interpreter;
};
class NodeSetVariableResolver : public Arabica::XPath::VariableResolver<std::string> {
public:
Arabica::XPath::XPathValue<std::string> resolveVariable(const std::string& namepaceUri,
const std::string& name) const;
void setVariable(const std::string& name, const Arabica::XPath::NodeSet<std::string>& value);
bool isDeclared(const std::string& name);
private:
std::map<std::string, Arabica::XPath::NodeSet<std::string> > _variables;
friend class XPathDataModel;
};
class XPathDataModel : public DataModelImpl {
public:
XPathDataModel();
virtual ~XPathDataModel();
virtual boost::shared_ptr<DataModelImpl> create(InterpreterInfo* interpreter);
virtual std::list<std::string> getNames() {
std::list<std::string> names;
names.push_back("xpath");
return names;
}
virtual void initialize();
virtual void setEvent(const Event& event);
virtual bool validate(const std::string& location, const std::string& schema);
virtual bool isLocation(const std::string& expr);
virtual uint32_t getLength(const std::string& expr);
virtual void setForeach(const std::string& item,
const std::string& array,
const std::string& index,
uint32_t iteration);
virtual void pushContext();
virtual void popContext();
virtual void eval(const Arabica::DOM::Element<std::string>& scriptElem,
const std::string& expr);
virtual void assign(const Arabica::DOM::Element<std::string>& assignElem,
const Arabica::DOM::Node<std::string>& node,
const std::string& content);
virtual void assign(const std::string& location, const Data& data);
virtual void init(const Arabica::DOM::Element<std::string>& dataElem,
const Arabica::DOM::Node<std::string>& node,
const std::string& content);
virtual void init(const std::string& location, const Data& data);
virtual Data getStringAsData(const std::string& content);
virtual bool isDeclared(const std::string& expr);
virtual std::string evalAsString(const std::string& expr);
virtual bool evalAsBool(const std::string& expr);
virtual bool evalAsBool(const Arabica::DOM::Element<std::string>& node, const std::string& expr);
virtual double evalAsNumber(const std::string& expr);
protected:
Arabica::XPath::XPath<std::string> _xpath;
Arabica::DOM::DOMImplementation<std::string> _domFactory;
Arabica::DOM::Element<std::string> _datamodel;
Arabica::DOM::Document<std::string> _doc;
bool isValidIdentifier(const std::string& identifier);
Arabica::XPath::NodeSet<std::string> dataToNodeSet(const Data& data);
// resolve value to its type
void assign(const Arabica::XPath::XPathValue<std::string>& key,
const Arabica::XPath::XPathValue<std::string>& value,
const Arabica::DOM::Element<std::string>& assignElem);
void assign(const Arabica::XPath::XPathValue<std::string>& key,
const Arabica::XPath::NodeSet<std::string>& value,
const Arabica::DOM::Element<std::string>& assignElem);
// assign value to a nodeset key
void assign(const Arabica::XPath::NodeSet<std::string>& key,
const std::string& value,
const Arabica::DOM::Element<std::string>& assignElem);
void assign(const Arabica::XPath::NodeSet<std::string>& key,
const double value,
const Arabica::DOM::Element<std::string>& assignElem);
void assign(const Arabica::XPath::NodeSet<std::string>& key,
const bool value,
const Arabica::DOM::Element<std::string>& assignElem);
void assign(const Arabica::XPath::NodeSet<std::string>& key,
const Arabica::XPath::NodeSet<std::string>& value,
const Arabica::DOM::Element<std::string>& assignElem);
// assign value to an element key (from nodeset)
void assign(const Arabica::DOM::Element<std::string>& key,
const Arabica::XPath::NodeSet<std::string>& value,
const Arabica::DOM::Element<std::string>& assignElem);
// assign value to a text node key (from nodeset)
void assign(const Arabica::DOM::Text<std::string>& key,
const Arabica::XPath::NodeSet<std::string>& value,
const Arabica::DOM::Element<std::string>& assignElem);
NodeSetVariableResolver _varResolver;
XPathFunctionResolver _funcResolver;
};
#ifdef BUILD_AS_PLUGINS
PLUMA_INHERIT_PROVIDER(XPathDataModel, DataModelImpl);
#endif
}
#endif /* end of include guard: XPATHDATAMODEL_H_KN8TWG0V */
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