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#ifndef RUNTIME_H_SQ1MBKGN
#define RUNTIME_H_SQ1MBKGN
#include <boost/uuid/uuid_generators.hpp>
#include <boost/algorithm/string.hpp>
#include <iostream>
#include <set>
#include <map>
#include <XPath/XPath.hpp>
#include <DOM/Document.hpp>
#include <io/uri.hpp>
#include <DOM/SAX2DOM/SAX2DOM.hpp>
#include <SAX/helpers/CatchErrorHandler.hpp>
#include "uscxml/concurrency/tinythread.h"
#include "uscxml/concurrency/eventqueue/libevent/DelayedEventQueue.h"
#include "uscxml/concurrency/BlockingQueue.h"
#include "uscxml/Message.h"
#include "uscxml/Factory.h"
namespace uscxml {
class Interpreter {
public:
enum Binding {
EARLY = 0,
LATE = 1
};
virtual ~Interpreter();
static Interpreter* fromDOM(const Arabica::DOM::Node<std::string>& node);
static Interpreter* fromXML(const std::string& xml);
static Interpreter* fromURI(const std::string& uri);
static Interpreter* fromInputSource(Arabica::SAX::InputSource<std::string>& source);
void start();
static void run(void*);
void interpret();
bool validate();
void setBaseURI(std::string baseURI) { _baseURI = Arabica::io::URI(baseURI); }
DataModel* getDataModel() { return _dataModel; }
Invoker* getInvoker() { return _invoker; }
void setInvoker(Invoker* invoker) { _invoker = invoker; }
void waitForStabilization();
void receive(Event& event) { _externalQueue.push(event); }
void receiveInternal(Event& event) { _internalQueue.push_back(event); }
Arabica::XPath::NodeSet<std::string> getConfiguration() { return _configuration; }
Arabica::DOM::Node<std::string> getState(const std::string& stateId);
const std::string& getName() { return _name; }
const std::string& getSessionId() { return _sessionId; }
static bool isMember(const Arabica::DOM::Node<std::string>& node, const Arabica::XPath::NodeSet<std::string>& set);
void dump();
static void dump(const Arabica::DOM::Node<std::string>& node, int lvl = 0);
protected:
Interpreter();
void init();
void normalize(const Arabica::DOM::Node<std::string>& node);
void setupIOProcessors();
void mainEventLoop();
bool _stable;
tthread::thread* _thread;
tthread::mutex _mutex;
tthread::condition_variable _stabilized;
Arabica::io::URI _baseURI;
Arabica::DOM::Document<std::string> _doc;
Arabica::DOM::Element<std::string> _scxml;
Arabica::XPath::XPath<std::string> _xpath;
Arabica::XPath::StandardNamespaceContext<std::string> _nsContext;
std::string _nsPrefix;
bool _running;
Binding _binding;
Arabica::XPath::NodeSet<std::string> _configuration;
Arabica::XPath::NodeSet<std::string> _statesToInvoke;
DataModel* _dataModel;
std::map<std::string, Arabica::XPath::NodeSet<std::string> > _historyValue;
std::list<Event > _internalQueue;
uscxml::concurrency::BlockingQueue<Event> _externalQueue;
DelayedEventQueue* _sendQueue;
Invoker* _invoker;
static Arabica::io::URI toBaseURI(const Arabica::io::URI& uri);
static Arabica::io::URI toAbsoluteURI(const Arabica::io::URI& uri, const Arabica::io::URI& baseURI);
void microstep(const Arabica::XPath::NodeSet<std::string>& enabledTransitions);
void exitStates(const Arabica::XPath::NodeSet<std::string>& enabledTransitions);
void enterStates(const Arabica::XPath::NodeSet<std::string>& enabledTransitions);
void executeTransitionContent(const Arabica::XPath::NodeSet<std::string>& enabledTransitions);
void executeContent(const Arabica::DOM::Node<std::string>& content);
void executeContent(const Arabica::DOM::NodeList<std::string>& content);
void initializeData(const Arabica::DOM::Node<std::string>& data);
void exitInterpreter();
void addStatesToEnter(const Arabica::DOM::Node<std::string>& state,
Arabica::XPath::NodeSet<std::string>& statesToEnter,
Arabica::XPath::NodeSet<std::string>& statesForDefaultEntry);
Arabica::XPath::NodeSet<std::string> selectEventlessTransitions();
Arabica::XPath::NodeSet<std::string> selectTransitions(const std::string& event);
Arabica::XPath::NodeSet<std::string> getTargetStates(const Arabica::DOM::Node<std::string>& transition);
Arabica::XPath::NodeSet<std::string> getChildStates(const Arabica::DOM::Node<std::string>& state);
Arabica::DOM::Node<std::string> getInitialState(Arabica::DOM::Node<std::string> state = Arabica::DOM::Node<std::string>());
Arabica::DOM::Node<std::string> getSourceState(const Arabica::DOM::Node<std::string>& transition);
Arabica::DOM::Node<std::string> findLCCA(const Arabica::XPath::NodeSet<std::string>& states);
static Arabica::XPath::NodeSet<std::string> getProperAncestors(const Arabica::DOM::Node<std::string>& s1, const Arabica::DOM::Node<std::string>& s2);
void send(const Arabica::DOM::Node<std::string>& element);
void invoke(const Arabica::DOM::Node<std::string>& element);
void cancelInvoke(const Arabica::DOM::Node<std::string>& element);
void returnDoneEvent(const Arabica::DOM::Node<std::string>& state);
void internalDoneSend(const Arabica::DOM::Node<std::string>& state);
static void delayedSend(void* userdata, std::string eventName);
static bool nameMatch(const std::string& transitionEvent, const std::string& event);
Arabica::XPath::NodeSet<std::string> filterPreempted(const Arabica::XPath::NodeSet<std::string>& enabledTransitions);
bool hasConditionMatch(const Arabica::DOM::Node<std::string>& conditional);
bool isPreemptingTransition(const Arabica::DOM::Node<std::string>& t1, const Arabica::DOM::Node<std::string>& t2);
bool isInFinalState(const Arabica::DOM::Node<std::string>& state);
bool isWithinSameChild(const Arabica::DOM::Node<std::string>& transition);
bool parentIsScxmlState(Arabica::DOM::Node<std::string> state);
static bool isState(const Arabica::DOM::Node<std::string>& state);
static bool isPseudoState(const Arabica::DOM::Node<std::string>& state);
static bool isTransitionTarget(const Arabica::DOM::Node<std::string>& elem);
static bool isTargetless(const Arabica::DOM::Node<std::string>& transition);
static bool isAtomic(const Arabica::DOM::Node<std::string>& state);
static bool isFinal(const Arabica::DOM::Node<std::string>& state);
static bool isHistory(const Arabica::DOM::Node<std::string>& state);
static bool isParallel(const Arabica::DOM::Node<std::string>& state);
static bool isCompound(const Arabica::DOM::Node<std::string>& state);
static bool isDescendant(const Arabica::DOM::Node<std::string>& s1, const Arabica::DOM::Node<std::string>& s2);
static std::vector<std::string> tokenizeIdRefs(const std::string& idRefs);
static boost::uuids::random_generator uuidGen;
static const std::string getUUID();
std::string _name;
std::string _sessionId;
IOProcessor* getIOProcessor(const std::string& type);
// IOProcessor* getIOProcessorForId(const std::string& sendId);
std::map<std::string, IOProcessor*> _ioProcessors;
std::map<std::string, std::pair<Interpreter*, SendRequest> > _sendIds;
std::map<std::string, Invoker*> _invokerIds;
std::map<std::string, Invoker*> _invokers;
};
#if 0
class SCXMLParseHandler :
public Arabica::SAX::EntityResolver<std::string>,
public Arabica::SAX::DTDHandler<std::string>,
public Arabica::SAX::ContentHandler<std::string>,
public Arabica::SAX::CatchErrorHandler<std::string>,
public Arabica::SAX::LexicalHandler<std::string>,
public Arabica::SAX::DeclHandler<std::string>
{
public:
SCXMLParseHandler() { }
virtual ~SCXMLParseHandler() { }
// EntityResolver
virtual InputSourceT resolveEntity(const std::string& publicId , const std::string& systemId) {
return InputSourceT();
}
// DTDHandler
virtual void notationDecl(const std::string& name,
const std::string& publicId,
const std::string& systemId) {
std::cout << "notationDecl" << std::endl;
std::cout << " name:" << name << std::endl;
std::cout << " publicId:" << publicId << std::endl;
std::cout << " systemId:" << systemId << std::endl;
}
virtual void unparsedEntityDecl(const std::string& name,
const std::string& publicId,
const std::string& systemId,
const std::string& notationName) {
std::cout << "unparsedEntityDecl" << std::endl;
std::cout << " name:" << name << std::endl;
std::cout << " publicId:" << publicId << std::endl;
std::cout << " systemId:" << systemId << std::endl;
std::cout << " notationName:" << notationName << std::endl;
}
// ContentHandler
virtual void setDocumentLocator(const LocatorT& locator) {
std::cout << "setDocumentLocator" << std::endl;
}
virtual void startDocument() {
std::cout << "startDocument" << std::endl;
}
virtual void endDocument() {
std::cout << "endDocument" << std::endl;
}
virtual void startPrefixMapping(const std::string& prefix, const std::string& uri) {
std::cout << "startPrefixMapping" << std::endl;
std::cout << " prefix:" << prefix << std::endl;
std::cout << " uri:" << uri << std::endl;
}
virtual void endPrefixMapping(const std::string& prefix) {
std::cout << "endPrefixMapping" << std::endl;
std::cout << " prefix:" << prefix << std::endl;
}
virtual void startElement(const std::string& namespaceURI, const std::string& localName,
const std::string& qName, const AttributesT& atts) {
std::cout << "startElement" << std::endl;
std::cout << " namespaceURI:" << namespaceURI << std::endl;
std::cout << " localName:" << localName << std::endl;
std::cout << " qName:" << qName << std::endl;
std::cout << " atts:" << atts.getLength() << std::endl;
}
virtual void endElement(const std::string& namespaceURI, const std::string& localName,
const std::string& qName) {
std::cout << "endElement" << std::endl;
std::cout << " namespaceURI:" << namespaceURI << std::endl;
std::cout << " localName:" << localName << std::endl;
std::cout << " qName:" << qName << std::endl;
}
virtual void characters(const std::string& ch) {
std::cout << "characters" << std::endl;
std::cout << " ch:" << ch << std::endl;
}
virtual void ignorableWhitespace(const std::string& ch) {
std::cout << "ignorableWhitespace" << std::endl;
std::cout << " ch:" << ch << std::endl;
}
virtual void processingInstruction(const std::string& target, const std::string& data) {
std::cout << "processingInstruction" << std::endl;
std::cout << " target:" << target << std::endl;
std::cout << " data:" << data << std::endl;
}
virtual void skippedEntity(const std::string& name) {
std::cout << "skippedEntity" << std::endl;
std::cout << " name:" << name << std::endl;
}
// ErrorHandler
virtual void warning(const SAXParseExceptionT& e) { Arabica::SAX::CatchErrorHandler<std::string>::warning(e); }
virtual void error(const SAXParseExceptionT& e) { Arabica::SAX::CatchErrorHandler<std::string>::error(e); }
virtual void fatalError(const SAXParseExceptionT& e) {
Arabica::SAX::CatchErrorHandler<std::string>::fatalError(e);
}
// LexicalHandler
virtual void startDTD(const std::string& name,
const std::string& publicId,
const std::string& systemId) {
std::cout << "startDTD" << std::endl;
std::cout << " name:" << name << std::endl;
std::cout << " publicId:" << publicId << std::endl;
std::cout << " systemId:" << systemId << std::endl;
}
virtual void endDTD() {
std::cout << "endDTD" << std::endl;
}
virtual void startEntity(const std::string& name) {
std::cout << "startEntity" << std::endl;
std::cout << " name:" << name << std::endl;
}
virtual void endEntity(const std::string& name) {
std::cout << "endEntity" << std::endl;
std::cout << " name:" << name << std::endl;
}
virtual void startCDATA() {
std::cout << "startCDATA" << std::endl;
}
virtual void endCDATA() {
std::cout << "endCDATA" << std::endl;
}
virtual void comment(const std::string& text) {
std::cout << "comment" << std::endl;
std::cout << " text:" << text << std::endl;
}
// DeclHandler
virtual void elementDecl(const std::string& name, const std::string& model) {
std::cout << "elementDecl" << std::endl;
std::cout << " name:" << name << std::endl;
std::cout << " model:" << model << std::endl;
}
virtual void attributeDecl(const std::string& elementName,
const std::string& attributeName,
const std::string& type,
const std::string& valueDefault,
const std::string& value) {
std::cout << "attributeDecl" << std::endl;
std::cout << " elementName:" << elementName << std::endl;
std::cout << " attributeName:" << attributeName << std::endl;
std::cout << " type:" << type << std::endl;
std::cout << " valueDefault:" << valueDefault << std::endl;
std::cout << " value:" << value << std::endl;
}
virtual void internalEntityDecl(const std::string& name, const std::string& value) {
std::cout << "internalEntityDecl" << std::endl;
std::cout << " name:" << name << std::endl;
std::cout << " value:" << value << std::endl;
}
virtual void externalEntityDecl(const std::string& name,
const std::string& publicId,
const std::string& systemId) {
std::cout << "externalEntityDecl" << std::endl;
std::cout << " name:" << name << std::endl;
std::cout << " publicId:" << publicId << std::endl;
std::cout << " systemId:" << systemId << std::endl;
}
};
#endif
}
#endif
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