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#ifndef RUNTIME_H_SQ1MBKGN
#define RUNTIME_H_SQ1MBKGN
#include "uscxml/Common.h"
#include "uscxml/URL.h"
#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/DelayedEventQueue.h"
#include "uscxml/concurrency/BlockingQueue.h"
#include "uscxml/Message.h"
#include "uscxml/Factory.h"
namespace uscxml {
class NumAttr {
public:
NumAttr(const std::string& str) {
size_t valueStart = str.find_first_of("0123456789.");
if (valueStart != std::string::npos) {
size_t valueEnd = str.find_last_of("0123456789.");
if (valueEnd != std::string::npos) {
value = str.substr(valueStart, (valueEnd - valueStart) + 1);
size_t unitStart = str.find_first_not_of(" \t", valueEnd + 1);
if (unitStart != std::string::npos) {
size_t unitEnd = str.find_last_of(" \t");
if (unitEnd != std::string::npos && unitEnd > unitStart) {
unit = str.substr(unitStart, unitEnd - unitStart);
} else {
unit = str.substr(unitStart, str.length() - unitStart);
}
}
}
}
}
std::string value;
std::string unit;
};
class Interpreter : protected Arabica::SAX2DOM::Parser<std::string> {
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);
virtual void startPrefixMapping(const std::string& /* prefix */, const std::string& /* uri */);
void start();
static void run(void*);
void join() {
if (_thread != NULL) _thread->join();
};
void interpret();
bool validate();
void setBaseURI(std::string baseURI) {
_baseURI = URL(baseURI);
}
URL getBaseURI() {
return _baseURI;
}
DataModel getDataModel() {
return _dataModel;
}
Invoker getInvoker() {
return _invoker;
}
void setInvoker(const Invoker& invoker) {
_invoker = invoker;
}
std::string getNSPrefix() {
return _nsPrefix;
}
Arabica::XPath::StandardNamespaceContext<std::string>& getNSContext() {
return _nsContext;
}
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);
Arabica::DOM::Document<std::string>& getDocument() {
return _document;
}
const std::string& getName() {
return _name;
}
const std::string& getSessionId() {
return _sessionId;
}
bool runOnMainThread(int fps, bool blocking = true);
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);
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);
bool isInitial(const Arabica::DOM::Node<std::string>& state);
Arabica::DOM::Node<std::string> getInitialState(Arabica::DOM::Node<std::string> state = Arabica::DOM::Node<std::string>());
static Arabica::XPath::NodeSet<std::string> getChildStates(const Arabica::DOM::Node<std::string>& state);
Arabica::XPath::NodeSet<std::string> getTargetStates(const Arabica::DOM::Node<std::string>& transition);
static Arabica::XPath::NodeSet<std::string> filterChildElements(const std::string& tagname, const Arabica::DOM::Node<std::string>& node);
static Arabica::XPath::NodeSet<std::string> filterChildElements(const std::string& tagName, const Arabica::XPath::NodeSet<std::string>& nodeSet);
static const std::string getUUID();
protected:
Interpreter();
void init();
void normalize(const Arabica::DOM::Document<std::string>& node);
void setupIOProcessors();
void mainEventLoop();
bool _stable;
tthread::thread* _thread;
tthread::mutex _mutex;
tthread::condition_variable _stabilized;
URL _baseURI;
Arabica::DOM::Document<std::string> _document;
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 URL toBaseURI(const URL& url);
bool toAbsoluteURI(URL& uri);
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::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 std::vector<std::string> tokenizeIdRefs(const std::string& idRefs);
static boost::uuids::random_generator uuidGen;
long _lastRunOnMainThread;
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> _invokers;
/// We need to remember to adapt them when the DOM is operated upon
std::map<std::string, Arabica::DOM::Node<std::string> > _cachedStates;
};
}
#endif
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