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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 V8DATAMODEL_H_KN8TWG0V
#define V8DATAMODEL_H_KN8TWG0V
#include "uscxml/config.h"
#include "uscxml/plugins/DataModelImpl.h"
#include <list>
#include <set>
#include <v8.h>
#include <mutex>
#ifdef BUILD_AS_PLUGINS
#include "uscxml/plugins/Plugins.h"
#endif
namespace uscxml {
class Event;
class Data;
}
namespace uscxml {
/**
* @ingroup datamodel
* ECMAScript data-model via Google's V8.
*/
class V8DataModel : public DataModelImpl {
public:
V8DataModel();
virtual ~V8DataModel();
virtual std::shared_ptr<DataModelImpl> create(DataModelCallbacks* callbacks);
virtual void addExtension(DataModelExtension* ext);
virtual std::list<std::string> getNames() {
std::list<std::string> names;
names.push_back("ecmascript");
return names;
}
virtual bool isValidSyntax(const std::string& expr);
virtual bool isLegalDataValue(const std::string& expr);
virtual void setEvent(const Event& event);
// foreach
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 bool evalAsBool(const std::string& expr);
virtual Data evalAsData(const std::string& expr);
virtual Data getAsData(const std::string& content);
virtual bool isDeclared(const std::string& expr);
virtual void assign(const std::string& location,
const Data& data,
const std::map<std::string, std::string>& attr = std::map<std::string, std::string>());
virtual void init(const std::string& location,
const Data& data,
const std::map<std::string, std::string>& attr = std::map<std::string, std::string>());
protected:
virtual void setup();
static v8::Handle<v8::Value> jsExtension(const v8::Arguments& args);
static v8::Handle<v8::Value> jsIn(const v8::Arguments& args);
static v8::Handle<v8::Value> jsPrint(const v8::Arguments& args);
//v8::Local<v8::Object> _event; // Persistent events leak ..
v8::Persistent<v8::Context> _context;
//static v8::Isolate* _isolate;
v8::Persistent<v8::Object> _ioProcessors;
v8::Persistent<v8::Object> _invokers;
static v8::Handle<v8::Value> getIOProcessors(v8::Local<v8::String> property, const v8::AccessorInfo& info);
static v8::Handle<v8::Value> getInvokers(v8::Local<v8::String> property, const v8::AccessorInfo& info);
static v8::Handle<v8::Value> getAttribute(v8::Local<v8::String> property, const v8::AccessorInfo& info);
static void setWithException(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::AccessorInfo& info);
v8::Handle<v8::Value> evalAsValue(const std::string& expr, bool dontThrow = false);
v8::Handle<v8::Value> getDataAsValue(const Data& data);
Data getValueAsData(const v8::Handle<v8::Value>& value);
v8::Handle<v8::Value> getNodeAsValue(const XERCESC_NS::DOMNode* node);
void throwExceptionEvent(const v8::TryCatch& tryCatch);
std::set<DataModelExtension*> _extensions;
private:
Data getValueAsData(const v8::Handle<v8::Value>& value, std::set<v8::Value*>& alreadySeen);
static std::mutex _initMutex;
};
#ifdef BUILD_AS_PLUGINS
PLUMA_INHERIT_PROVIDER(V8DataModel, DataModelImpl);
#endif
}
#endif /* end of include guard: V8DATAMODEL_H_KN8TWG0V */
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