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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"
#define ORIG_ENTERSTATES
namespace uscxml {
class HTTPServletInvoker;
class InterpreterMonitor {
public:
virtual ~InterpreterMonitor() {}
virtual void onStableConfiguration(Interpreter* interpreter) {}
virtual void beforeCompletion(Interpreter* interpreter) {}
virtual void afterCompletion(Interpreter* interpreter) {}
virtual void beforeMicroStep(Interpreter* interpreter) {}
virtual void beforeTakingTransitions(Interpreter* interpreter, const Arabica::XPath::NodeSet<std::string>& transitions) {}
virtual void beforeEnteringStates(Interpreter* interpreter, const Arabica::XPath::NodeSet<std::string>& statesToEnter) {}
virtual void afterEnteringStates(Interpreter* interpreter) {}
virtual void beforeExitingStates(Interpreter* interpreter, const Arabica::XPath::NodeSet<std::string>& statesToExit) {}
virtual void afterExitingStates(Interpreter* interpreter) {}
};
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
};
enum Capabilities {
CAN_NOTHING = 0,
CAN_BASIC_HTTP = 1,
CAN_GENERIC_HTTP = 2,
};
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();
void addMonitor(InterpreterMonitor* monitor) {
_monitors.insert(monitor);
}
void removeMonitor(InterpreterMonitor* monitor) {
_monitors.erase(monitor);
}
void setBaseURI(std::string baseURI) {
_baseURI = URL(baseURI);
}
URL getBaseURI() {
return _baseURI;
}
bool toAbsoluteURI(URL& uri);
void setCmdLineOptions(int argc, char** argv);
Data getCmdLineOptions() {
return _cmdLineOptions;
}
HTTPServletInvoker* getHTTPServlet() {
return _httpServlet;
}
DataModel getDataModel() {
return _dataModel;
}
void setParentQueue(uscxml::concurrency::BlockingQueue<Event>* parentQueue) {
_parentQueue = parentQueue;
}
std::string getXPathPrefix() {
return _xpathPrefix;
}
std::string getXMLPrefix() {
return _xmlNSPrefix;
}
Arabica::XPath::StandardNamespaceContext<std::string>& getNSContext() {
return _nsContext;
}
std::string getXMLPrefixForNS(const std::string& ns) {
if (_nsToPrefix.find(ns) != _nsToPrefix.end())
return _nsToPrefix[ns] + ":";
return "";
}
void receive(const Event& event, bool toFront = false) {
if (toFront) {
_externalQueue.push_front(event);
} else {
_externalQueue.push(event);
}
}
void receiveInternal(const Event& event) {
_internalQueue.push_back(event);
}
Event getCurrentEvent() {
return _currEvent;
}
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;
}
void setCapabilities(unsigned int capabilities) {
_capabilities = capabilities;
}
void setName(const std::string& name);
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();
bool hasLegalConfiguration();
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;
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 _xmlNSPrefix; // the actual prefix for elements in the xml file
std::string _xpathPrefix; // prefix mapped for xpath, "scxml" is _xmlNSPrefix is empty but _nsURL set
std::string _nsURL; // ough to be "http://www.w3.org/2005/07/scxml"
std::map<std::string, std::string> _nsToPrefix;
bool _running;
bool _done;
bool _isInitialized;
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;
uscxml::concurrency::BlockingQueue<Event>* _parentQueue;
DelayedEventQueue* _sendQueue;
Event _currEvent;
HTTPServletInvoker* _httpServlet;
std::set<InterpreterMonitor*> _monitors;
static URL toBaseURI(const URL& url);
void microstep(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 executeContent(const Arabica::XPath::NodeSet<std::string>& content);
void initializeData(const Arabica::DOM::Node<std::string>& data);
void exitInterpreter();
#ifdef ORIG_ENTERSTATES
void enterStates(const Arabica::XPath::NodeSet<std::string>& enabledTransitions);
void addStatesToEnter(const Arabica::DOM::Node<std::string>& state,
Arabica::XPath::NodeSet<std::string>& statesToEnter,
Arabica::XPath::NodeSet<std::string>& statesForDefaultEntry);
#endif
#ifdef ENTERSTATES_02_2013
void enterStates(const Arabica::XPath::NodeSet<std::string>& enabledTransitions);
void computeEntrySet(const Arabica::XPath::NodeSet<std::string>& transitions,
Arabica::XPath::NodeSet<std::string>& statesToEnter,
Arabica::XPath::NodeSet<std::string>& statesForDefaultEntry);
void addDescendentStatesToEnter(const Arabica::DOM::Node<std::string>& state,
Arabica::XPath::NodeSet<std::string>& statesToEnter,
Arabica::XPath::NodeSet<std::string>& statesForDefaultEntry);
void addAncestorStatesToEnter(const Arabica::DOM::Node<std::string>& state,
const Arabica::DOM::Node<std::string>& ancestor,
Arabica::XPath::NodeSet<std::string>& statesToEnter,
Arabica::XPath::NodeSet<std::string>& statesForDefaultEntry);
Arabica::DOM::Node<std::string> getTransitionDomain(const Arabica::DOM::Node<std::string>& transition);
#endif
void exitStates(const Arabica::XPath::NodeSet<std::string>& enabledTransitions);
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);
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 isPreemptingTransition(const Arabica::DOM::Node<std::string>& t1, const Arabica::DOM::Node<std::string>& t2);
bool isWithinSameChild(const Arabica::DOM::Node<std::string>& transition);
bool hasConditionMatch(const Arabica::DOM::Node<std::string>& conditional);
bool isInFinalState(const Arabica::DOM::Node<std::string>& state);
bool parentIsScxmlState(Arabica::DOM::Node<std::string> state);
// Arabica::DOM::Node<std::string> getTransitionSubgraph(const Arabica::DOM::Node<std::string>& transition);
static std::vector<std::string> tokenizeIdRefs(const std::string& idRefs);
static boost::uuids::random_generator uuidGen;
long _lastRunOnMainThread;
std::string _name;
std::string _sessionId;
unsigned int _capabilities;
Data _cmdLineOptions;
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;
std::map<std::string, Invoker> _autoForwardees;
std::map<Arabica::DOM::Node<std::string>, ExecutableContent> _executableContent;
/// We need to remember to adapt them when the DOM is operated upon
std::map<std::string, Arabica::DOM::Node<std::string> > _cachedStates;
std::map<std::string, URL> _cachedURLs;
};
}
#endif
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