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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"
#include "uscxml/server/InterpreterServlet.h"
namespace uscxml {
class HTTPServletInvoker;
class InterpreterMonitor;
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;
};
enum Capabilities {
CAN_NOTHING = 0,
CAN_BASIC_HTTP = 1,
CAN_GENERIC_HTTP = 2,
};
class InterpreterImpl : public boost::enable_shared_from_this<InterpreterImpl> {
public:
typedef std::set<InterpreterMonitor*>::iterator monIter_t;
enum Binding {
EARLY = 0,
LATE = 1
};
virtual ~InterpreterImpl();
void start();
static void run(void*);
void join() {
if (_thread != NULL) _thread->join();
};
bool isRunning() {
return _running || !_done;
}
/// This one ought to be pure, but SWIG will generate gibberish if it is
virtual 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;
}
void setCmdLineOptions(int argc, char** argv);
Data getCmdLineOptions() {
return _cmdLineOptions;
}
InterpreterServlet* getHTTPServlet() {
return _httpServlet;
}
DataModel getDataModel() {
return _dataModel;
}
void setParentQueue(uscxml::concurrency::BlockingQueue<SendRequest>* parentQueue) {
_parentQueue = parentQueue;
}
void setFactory(Factory* factory) {
_factory = factory;
}
Factory* getFactory() {
return _factory;
}
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 setNameSpaceInfo(const std::map<std::string, std::string> nameSpaceInfo);
std::map<std::string, std::string> getNameSpaceInfo() {
return _nameSpaceInfo;
}
void receiveInternal(const Event& event);
void receive(const Event& event, bool toFront = false);
Event getCurrentEvent() {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
return _currEvent;
}
Arabica::XPath::NodeSet<std::string> getConfiguration() {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
return _configuration;
}
Arabica::XPath::NodeSet<std::string> getBasicConfiguration() {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
Arabica::XPath::NodeSet<std::string> basicConfig;
for (int i = 0; i < _configuration.size(); i++) {
if (isAtomic(_configuration[i]))
basicConfig.push_back(_configuration[i]);
}
return basicConfig;
}
void setConfiguration(const std::vector<std::string>& states) {
_userDefinedStartConfiguration = states;
}
void setInvokeRequest(const InvokeRequest& req) {
_invokeReq = req;
}
Arabica::DOM::Node<std::string> getState(const std::string& stateId);
Arabica::XPath::NodeSet<std::string> getStates(const std::vector<std::string>& stateIds);
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;
}
DelayedEventQueue* getDelayQueue() {
return _sendQueue;
}
const std::map<std::string, IOProcessor>& getIOProcessors() {
return _ioProcessors;
}
const std::map<std::string, Invoker>& getInvokers() {
return _invokers;
}
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();
bool isLegalConfiguration(const Arabica::XPath::NodeSet<std::string>&);
bool isLegalConfiguration(const std::vector<std::string>&);
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 std::string spaceNormalize(const std::string& text);
bool isInEmbeddedDocument(const Arabica::DOM::Node<std::string>& node);
bool isInitial(const Arabica::DOM::Node<std::string>& state);
Arabica::XPath::NodeSet<std::string> getInitialStates(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);
static Arabica::DOM::Node<std::string> getParentState(const Arabica::DOM::Node<std::string>& element);
static Arabica::DOM::Node<std::string> getAncestorElement(const Arabica::DOM::Node<std::string>& node, const std::string tagName);
Arabica::XPath::NodeSet<std::string> getTargetStates(const Arabica::DOM::Node<std::string>& transition);
Arabica::DOM::Node<std::string> getSourceState(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);
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);
static std::string getUUID();
protected:
InterpreterImpl();
void init();
void normalize(Arabica::DOM::Element<std::string>& scxml);
void initializeData(const Arabica::DOM::Element<std::string>& data);
void setupIOProcessors();
bool _stable;
tthread::thread* _thread;
tthread::recursive_mutex _mutex;
tthread::condition_variable _condVar;
tthread::recursive_mutex _pluginMutex;
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;
std::map<std::string, std::string> _nameSpaceInfo;
bool _running;
bool _done;
bool _isInitialized;
InterpreterImpl::Binding _binding;
Arabica::XPath::NodeSet<std::string> _configuration;
Arabica::XPath::NodeSet<std::string> _statesToInvoke;
std::vector<std::string> _userDefinedStartConfiguration;
InvokeRequest _invokeReq;
DataModel _dataModel;
std::map<std::string, Arabica::XPath::NodeSet<std::string> > _historyValue;
std::list<Event > _internalQueue;
uscxml::concurrency::BlockingQueue<Event> _externalQueue;
uscxml::concurrency::BlockingQueue<SendRequest>* _parentQueue;
DelayedEventQueue* _sendQueue;
Event _currEvent;
Factory* _factory;
InterpreterServlet* _httpServlet;
std::set<InterpreterMonitor*> _monitors;
void executeContent(const Arabica::DOM::Node<std::string>& content, bool rethrow = false);
void executeContent(const Arabica::DOM::NodeList<std::string>& content, bool rethrow = false);
void executeContent(const Arabica::XPath::NodeSet<std::string>& content, bool rethrow = false);
void processContentElement(const Arabica::DOM::Node<std::string>& element,
Arabica::DOM::Node<std::string>& dom,
std::string& text,
std::string& expr);
void processParamChilds(const Arabica::DOM::Node<std::string>& element,
std::multimap<std::string, std::string>& params);
void processDOMorText(const Arabica::DOM::Node<std::string>& element,
Arabica::DOM::Node<std::string>& dom,
std::string& text);
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);
bool hasConditionMatch(const Arabica::DOM::Node<std::string>& conditional);
bool isInFinalState(const Arabica::DOM::Node<std::string>& state);
bool parentIsScxmlState(const Arabica::DOM::Node<std::string>& state);
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);
std::map<std::string, IOProcessor> _ioProcessors;
std::map<std::string, std::pair<InterpreterImpl*, SendRequest> > _sendIds;
std::map<std::string, Invoker> _invokers;
std::map<std::string, Invoker> _autoForwardees;
std::map<Arabica::DOM::Node<std::string>, ExecutableContent> _executableContent;
/// TODO: 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;
friend class USCXMLInvoker;
friend class SCXMLIOProcessor;
friend class Interpreter;
};
class Interpreter {
public:
static Interpreter fromDOM(const Arabica::DOM::Document<std::string>& dom);
static Interpreter fromXML(const std::string& xml);
static Interpreter fromURI(const std::string& uri);
static Interpreter fromInputSource(Arabica::SAX::InputSource<std::string>& source);
Interpreter() : _impl() {}
Interpreter(boost::shared_ptr<InterpreterImpl> const impl) : _impl(impl) { }
Interpreter(const Interpreter& other) : _impl(other._impl) { }
virtual ~Interpreter() {};
operator bool() const {
return _impl;
}
bool operator< (const Interpreter& other) const {
return _impl < other._impl;
}
bool operator==(const Interpreter& other) const {
return _impl == other._impl;
}
bool operator!=(const Interpreter& other) const {
return _impl != other._impl;
}
Interpreter& operator= (const Interpreter& other) {
_impl = other._impl;
return *this;
}
void start() {
return _impl->start();
}
void join() {
return _impl->join();
};
bool isRunning() {
return _impl->isRunning();
}
void interpret() {
_impl->interpret();
};
void addMonitor(InterpreterMonitor* monitor) {
return _impl->addMonitor(monitor);
}
void removeMonitor(InterpreterMonitor* monitor) {
return _impl->removeMonitor(monitor);
}
void setBaseURI(std::string baseURI) {
return _impl->setBaseURI(baseURI);
}
URL getBaseURI() {
return _impl->getBaseURI();
}
void setNameSpaceInfo(const std::map<std::string, std::string> namespaceInfo) {
_impl->setNameSpaceInfo(namespaceInfo);
}
std::map<std::string, std::string> getNameSpaceInfo() {
return _impl->getNameSpaceInfo();
}
void setCmdLineOptions(int argc, char** argv) {
return _impl->setCmdLineOptions(argc, argv);
}
Data getCmdLineOptions() {
return _impl->getCmdLineOptions();
}
InterpreterServlet* getHTTPServlet() {
return _impl->getHTTPServlet();
}
DataModel getDataModel() {
return _impl->getDataModel();
}
void setParentQueue(uscxml::concurrency::BlockingQueue<SendRequest>* parentQueue) {
return _impl->setParentQueue(parentQueue);
}
void setFactory(Factory* factory) {
return _impl->setFactory(factory);
}
Factory* getFactory() {
return _impl->getFactory();
}
std::string getXPathPrefix() {
return _impl->getXPathPrefix();
}
std::string getXMLPrefix() {
return _impl->getXMLPrefix();
}
Arabica::XPath::StandardNamespaceContext<std::string>& getNSContext() {
return _impl->getNSContext();
}
std::string getXMLPrefixForNS(const std::string& ns) {
return _impl->getXMLPrefixForNS(ns);
}
void inline receiveInternal(const Event& event) {
return _impl->receiveInternal(event);
}
void receive(const Event& event, bool toFront = false) {
return _impl->receive(event, toFront);
}
Event getCurrentEvent() {
return _impl->getCurrentEvent();
}
Arabica::XPath::NodeSet<std::string> getConfiguration() {
return _impl->getConfiguration();
}
Arabica::XPath::NodeSet<std::string> getBasicConfiguration() {
return _impl->getBasicConfiguration();
}
void setConfiguration(const std::vector<std::string>& states) {
return _impl->setConfiguration(states);
}
void setInvokeRequest(const InvokeRequest& req) {
return _impl->setInvokeRequest(req);
}
Arabica::DOM::Node<std::string> getState(const std::string& stateId) {
return _impl->getState(stateId);
}
Arabica::XPath::NodeSet<std::string> getStates(const std::vector<std::string>& stateIds) {
return _impl->getStates(stateIds);
}
Arabica::DOM::Document<std::string>& getDocument() {
return _impl->getDocument();
}
void setCapabilities(unsigned int capabilities) {
return _impl->setCapabilities(capabilities);
}
void setName(const std::string& name) {
return _impl->setName(name);
}
const std::string& getName() {
return _impl->getName();
}
const std::string& getSessionId() {
return _impl->getSessionId();
}
DelayedEventQueue* getDelayQueue() {
return _impl->getDelayQueue();
}
const std::map<std::string, IOProcessor>& getIOProcessors() {
return _impl->getIOProcessors();
}
const std::map<std::string, Invoker>& getInvokers() {
return _impl->getInvokers();
}
bool runOnMainThread(int fps, bool blocking = true) {
return _impl->runOnMainThread(fps, blocking);
}
static bool isMember(const Arabica::DOM::Node<std::string>& node, const Arabica::XPath::NodeSet<std::string>& set) {
return InterpreterImpl::isMember(node, set);
}
void dump() {
return _impl->dump();
}
bool hasLegalConfiguration() {
return _impl->hasLegalConfiguration();
}
bool isLegalConfiguration(const Arabica::XPath::NodeSet<std::string>& config) {
return _impl->isLegalConfiguration(config);
}
bool isLegalConfiguration(const std::vector<std::string>& config) {
return _impl->isLegalConfiguration(config);
}
static bool isState(const Arabica::DOM::Node<std::string>& state) {
return InterpreterImpl::isState(state);
}
static bool isPseudoState(const Arabica::DOM::Node<std::string>& state) {
return InterpreterImpl::isPseudoState(state);
}
static bool isTransitionTarget(const Arabica::DOM::Node<std::string>& elem) {
return InterpreterImpl::isTransitionTarget(elem);
}
static bool isTargetless(const Arabica::DOM::Node<std::string>& transition) {
return InterpreterImpl::isTargetless(transition);
}
static bool isAtomic(const Arabica::DOM::Node<std::string>& state) {
return InterpreterImpl::isAtomic(state);
}
static bool isFinal(const Arabica::DOM::Node<std::string>& state) {
return InterpreterImpl::isFinal(state);
}
static bool isHistory(const Arabica::DOM::Node<std::string>& state) {
return InterpreterImpl::isHistory(state);
}
static bool isParallel(const Arabica::DOM::Node<std::string>& state) {
return InterpreterImpl::isParallel(state);
}
static bool isCompound(const Arabica::DOM::Node<std::string>& state) {
return InterpreterImpl::isCompound(state);
}
static bool isDescendant(const Arabica::DOM::Node<std::string>& s1, const Arabica::DOM::Node<std::string>& s2) {
return InterpreterImpl::isDescendant(s1, s2);
}
static std::vector<std::string> tokenizeIdRefs(const std::string& idRefs) {
return InterpreterImpl::tokenizeIdRefs(idRefs);
}
static std::string spaceNormalize(const std::string& text) {
return InterpreterImpl::spaceNormalize(text);
}
bool isInitial(const Arabica::DOM::Node<std::string>& state) {
return _impl->isInitial(state);
}
Arabica::XPath::NodeSet<std::string> getInitialStates(Arabica::DOM::Node<std::string> state = Arabica::DOM::Node<std::string>()) {
return _impl->getInitialStates(state);
}
static Arabica::XPath::NodeSet<std::string> getChildStates(const Arabica::DOM::Node<std::string>& state) {
return InterpreterImpl::getChildStates(state);
}
static Arabica::DOM::Node<std::string> getParentState(const Arabica::DOM::Node<std::string>& element) {
return InterpreterImpl::getParentState(element);
}
static Arabica::DOM::Node<std::string> getAncestorElement(const Arabica::DOM::Node<std::string>& node, const std::string tagName) {
return InterpreterImpl::getAncestorElement(node, tagName);
}
Arabica::XPath::NodeSet<std::string> getTargetStates(const Arabica::DOM::Node<std::string>& transition) {
return _impl->getTargetStates(transition);
}
Arabica::DOM::Node<std::string> getSourceState(const Arabica::DOM::Node<std::string>& transition) {
return _impl->getSourceState(transition);
}
static Arabica::XPath::NodeSet<std::string> filterChildElements(const std::string& tagname, const Arabica::DOM::Node<std::string>& node) {
return InterpreterImpl::filterChildElements(tagname, node);
}
static Arabica::XPath::NodeSet<std::string> filterChildElements(const std::string& tagName, const Arabica::XPath::NodeSet<std::string>& nodeSet) {
return InterpreterImpl::filterChildElements(tagName, nodeSet);
}
Arabica::DOM::Node<std::string> findLCCA(const Arabica::XPath::NodeSet<std::string>& states) {
return _impl->findLCCA(states);
}
Arabica::XPath::NodeSet<std::string> getProperAncestors(const Arabica::DOM::Node<std::string>& s1, const Arabica::DOM::Node<std::string>& s2) {
return _impl->getProperAncestors(s1, s2);
}
static std::string getUUID() {
return InterpreterImpl::getUUID();
}
boost::shared_ptr<InterpreterImpl> getImpl() {
return _impl;
}
static std::map<std::string, boost::weak_ptr<InterpreterImpl> > getInstances() {
tthread::lock_guard<tthread::recursive_mutex> lock(_instanceMutex);
std::map<std::string, boost::weak_ptr<InterpreterImpl> >::iterator instIter = _instances.begin();
while(instIter != _instances.end()) {
if (!instIter->second.lock()) {
_instances.erase(instIter++);
} else {
instIter++;
}
}
return _instances;
}
protected:
boost::shared_ptr<InterpreterImpl> _impl;
static std::map<std::string, boost::weak_ptr<InterpreterImpl> > _instances;
static tthread::recursive_mutex _instanceMutex;
};
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) {}
};
}
#endif
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