1 files changed, 143 insertions, 0 deletions
diff --git a/src/uscxml/plugins/datamodel/xpath/XPathDataModel.h b/src/uscxml/plugins/datamodel/xpath/XPathDataModel.h
new file mode 100644
index 0000000..d028129
--- /dev/null
+++ b/src/uscxml/plugins/datamodel/xpath/XPathDataModel.h
@@ -0,0 +1,143 @@
+#ifndef XPATHDATAMODEL_H_KN8TWG0V
+#define XPATHDATAMODEL_H_KN8TWG0V
+
+#include "uscxml/Interpreter.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,
+									InterpreterImpl* interpreter) :
+		BooleanXPathFunction(minArgs, maxArgs, args),
+		_interpreter(interpreter) {}
+
+protected:
+	bool doEvaluate(const Arabica::DOM::Node<std::string>& context,
+									const Arabica::XPath::ExecutionContext<std::string>& executionContext) const;
+	InterpreterImpl* _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(InterpreterImpl* interpreter) { _interpreter = interpreter; }
+protected:
+	Arabica::XPath::StandardXPathFunctionResolver<std::string> _xpathFuncRes;
+	InterpreterImpl* _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) {
+		_variables[name] = value;
+	}
+	
+private:
+	std::map<std::string, Arabica::XPath::NodeSet<std::string> > _variables;
+};
+
+class XPathDataModel : public DataModelImpl {
+public:
+	XPathDataModel();
+	virtual ~XPathDataModel();
+	virtual boost::shared_ptr<DataModelImpl> create(InterpreterImpl* interpreter);
+
+	virtual std::set<std::string> getNames() {
+		std::set<std::string> names;
+		names.insert("xpath");
+		return names;
+	}
+
+	virtual void initialize();
+	virtual void setEvent(const Event& event);
+
+	virtual bool validate(const std::string& location, const std::string& schema);
+
+	virtual uint32_t getLength(const std::string& expr);
+	virtual void pushContext();
+	virtual void popContext();
+
+	virtual void eval(const std::string& expr);
+	virtual void assign(const std::string& location,
+											const Arabica::DOM::Document<std::string>& doc,
+											const Arabica::DOM::Element<std::string>& assignElem);
+	virtual void assign(const std::string& location,
+											const std::string& expr,
+											const Arabica::DOM::Element<std::string>& assignElem);
+	virtual void assign(const std::string& location,
+											const Data& data,
+											const Arabica::DOM::Element<std::string>& assignElem);
+	
+	virtual void init(const std::string& location,
+										const Arabica::DOM::Document<std::string>& doc,
+										const Arabica::DOM::Element<std::string>& dataElem);
+	virtual void init(const std::string& location,
+										const std::string& expr,
+										const Arabica::DOM::Element<std::string>& dataElem);
+	virtual void init(const std::string& location,
+										const Data& data,
+										const Arabica::DOM::Element<std::string>& dataElem);
+
+	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 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;
+
+	void assign(Arabica::XPath::XPathValue<std::string>& key,
+							const Arabica::XPath::XPathValue<std::string>& value,
+							const Arabica::DOM::Element<std::string>& assignElem);
+	void assign(Arabica::XPath::XPathValue<std::string>& key,
+							const std::string& value,
+							const Arabica::DOM::Element<std::string>& assignElem);
+	void assign(Arabica::XPath::XPathValue<std::string>& key,
+							const double value,
+							const Arabica::DOM::Element<std::string>& assignElem);
+	void assign(Arabica::XPath::XPathValue<std::string>& key,
+							const bool value,
+							const Arabica::DOM::Element<std::string>& assignElem);
+	void assign(Arabica::XPath::XPathValue<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 */