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/**
* @file
* @author 2012-2014 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 FLATSTATEIDENTIFIER_H_E9534AF9
#define FLATSTATEIDENTIFIER_H_E9534AF9
#include "uscxml/Common.h"
#include "uscxml/Convenience.h"
#include "uscxml/DOMUtils.h"
#include <XPath/XPath.hpp>
#include <sstream>
#include <string>
#include <list>
#include <map>
#include <boost/algorithm/string.hpp>
namespace uscxml {
class USCXML_API FlatStateIdentifier {
public:
FlatStateIdentifier(const Arabica::XPath::NodeSet<std::string>& activeStates,
const Arabica::XPath::NodeSet<std::string>& alreadyEnteredStates,
const std::map<std::string, Arabica::XPath::NodeSet<std::string> >& historyStates) {
for (int i = 0; i < activeStates.size(); i++) {
active.push_back(ATTR_CAST(activeStates[i], "id"));
}
for (int i = 0; i < alreadyEnteredStates.size(); i++) {
const Arabica::DOM::NodeList<std::string>& children = alreadyEnteredStates[i].getChildNodes();
bool isRelevant = false;
for (int j = 0; j < children.getLength(); j++) {
if (children.item(j).getNodeType() != Arabica::DOM::Node_base::ELEMENT_NODE)
continue;
if (iequals(LOCALNAME_CAST(children.item(j)), "data") || iequals(LOCALNAME_CAST(children.item(j)), "datamodel")) {
isRelevant = true;
break;
}
}
if (isRelevant)
visited.push_back(ATTR_CAST(alreadyEnteredStates[i], "id"));
}
std::map<std::string, Arabica::XPath::NodeSet<std::string> >::const_iterator histIter;
for (histIter = historyStates.begin(); histIter != historyStates.end(); histIter++) {
for (int i = 0; i < histIter->second.size(); i++) {
histories[histIter->first].push_back(ATTR_CAST(histIter->second[i], "id"));
}
}
initStateId();
}
FlatStateIdentifier(const std::list<std::string>& active,
const std::list<std::string>& visited,
const std::map<std::string, std::list<std::string> >& histories) : active(active), visited(visited), histories(histories) {
initStateId();
}
FlatStateIdentifier(const std::string& identifier) : stateId(identifier) {
std::string parsedName;
// parse unique state identifier
std::stringstream elemNameSS(identifier);
std::string section;
while(std::getline(elemNameSS, section, ';')) {
if (boost::starts_with(section, "active:{")) {
// active:{s0,s1,s2}
std::stringstream stateSS(section.substr(8, section.size() - 9));
std::string state;
while(std::getline(stateSS, state, ',')) {
if (state.length() > 0) {
active.push_back(state);
}
}
} else if (boost::starts_with(section, "visited:{")) {
// entered:{s0,s1,s2}
std::stringstream stateSS(section.substr(9, section.size() - 10));
std::string state;
while(std::getline(stateSS, state, ',')) {
if (state.length() > 0) {
visited.push_back(state);
}
}
} else if (boost::starts_with(section, "history:{")) {
// history:{h0:{s1,s2},h1:{s2,s3}}
std::string histEntries(section.substr(9, section.length() - 10));
std::string state;
size_t start = 0;
size_t history = 0;
while((history = histEntries.find(":", start)) != std::string::npos) {
std::string histName = histEntries.substr(start, history - start);
history++;
size_t end = histEntries.find("}", start);
if (end == std::string::npos)
continue;
std::stringstream stateSS(histEntries.substr(history + 1, end - history - 1));
std::string state;
while(std::getline(stateSS, state, ',')) {
histories[histName].push_back(state);
}
start = end + 2;
}
}
}
}
const std::string& getStateId() {
return stateId;
}
const std::list<std::string>& getActive() {
return active;
}
const std::string& getFlatActive() {
return flatActive;
}
const std::list<std::string>& getVisited() {
return visited;
}
const std::string& getFlatVisited() {
return flatVisited;
}
const std::map<std::string, std::list<std::string> > & getHistory() {
return histories;
}
const std::string& getFlatHistory() {
return flatHistories;
}
protected:
std::list<std::string> active;
std::list<std::string> visited;
std::map<std::string, std::list<std::string> > histories;
std::string flatActive;
std::string flatVisited;
std::string flatHistories;
std::string stateId;
void initStateId() {
std::stringstream stateIdSS;
std::string seperator;
std::stringstream flatActiveSS;
flatActiveSS << "active:{";
for (std::list<std::string>::const_iterator actIter = active.begin(); actIter != active.end(); actIter++) {
flatActiveSS << seperator << *actIter;
seperator = ",";
}
flatActiveSS << "}";
flatActive = flatActiveSS.str();
stateIdSS << flatActive;
if (visited.size() > 0) {
std::stringstream flatVisitedSS;
seperator = "";
flatVisitedSS << "visited:{";
for (std::list<std::string>::const_iterator visitIter = visited.begin(); visitIter != visited.end(); visitIter++) {
flatVisitedSS << seperator << *visitIter;
seperator = ",";
}
flatVisitedSS << "}";
flatVisited = flatVisitedSS.str();
stateIdSS << ";" << flatVisited;
}
if (histories.size() > 0) {
std::stringstream flatHistorySS;
seperator = "";
flatHistorySS << "history:{";
for (std::map<std::string, std::list<std::string> >::const_iterator histIter = histories.begin(); histIter != histories.end(); histIter++) {
flatHistorySS << seperator << histIter->first << ":{";
seperator = ",";
std::string itemSeperator;
for (std::list<std::string>::const_iterator histItemIter = histIter->second.begin(); histItemIter != histIter->second.end(); histItemIter++) {
flatHistorySS << itemSeperator << *histItemIter;
itemSeperator = ",";
}
flatHistorySS << "}";
}
flatHistorySS << "}";
flatHistories = flatHistorySS.str();
stateIdSS << ";" << flatHistories;
}
stateId = stateIdSS.str();
}
#if 0
std::string activeId() {
std::stringstream activeSS;
activeSS << "active-";
for (std::list<std::string>::const_iterator activeIter = active.begin(); activeIter != active.end(); activeIter++) {
activeSS << *activeIter << "-";
}
return activeSS.str();
}
#endif
};
}
#endif /* end of include guard: FLATSTATEIDENTIFIER_H_E9534AF9 */
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