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#include "uscxml/Interpreter.h"
#include "uscxml/server/HTTPServer.h"
#include <sstream>
extern "C" {
#include "jsmn.h" // minimal json parser
}
#include <event2/keyvalq_struct.h>
#include <event2/buffer.h>
/**
POST /foo HTTP/1.1
host: localhost:9000
accept: application/json
content-type: application/json
content-length: 92
Connection: keep-alive
{"load":"http://localhost:9999/scxml-test-framework/test/targetless-transition/test3.scxml"}
*/
class TestIOProcessor : public uscxml::HTTPServlet, public uscxml::InterpreterMonitor {
public:
static int lastToken;
static bool alreadyAnswered; // we need this for delayed events
static std::map<std::string, std::pair<uscxml::Interpreter, uscxml::HTTPServer::Request> > _interpreters;
TestIOProcessor() {}
virtual void beforeCompletion(uscxml::Interpreter interpreter) {
onStableConfiguration(interpreter);
}
virtual void afterCompletion(uscxml::Interpreter interpreter) {
_interpreters[interpreter.getName()].second.curlReq = NULL;
}
virtual void beforeMicroStep(uscxml::Interpreter interpreter) {}
virtual void beforeTakingTransitions(uscxml::Interpreter interpreter, const Arabica::XPath::NodeSet<std::string>& transitions) {}
virtual void beforeEnteringStates(uscxml::Interpreter interpreter, const Arabica::XPath::NodeSet<std::string>& statesToEnter) {
std::cout << "Entering states: ";
for (int i = 0; i < statesToEnter.size(); i++) {
std::cout << ATTR(statesToEnter[i], "id") << ", ";
}
std::cout << std::endl;
}
virtual void afterEnteringStates(uscxml::Interpreter interpreter) {
std::cout << "After entering states: ";
for (int i = 0; i < interpreter.getConfiguration().size(); i++) {
std::cout << ATTR(interpreter.getConfiguration()[i], "id") << ", ";
}
std::cout << std::endl;
}
virtual void beforeExitingStates(uscxml::Interpreter interpreter, const Arabica::XPath::NodeSet<std::string>& statesToExit) {
std::cout << "Configuration: ";
for (int i = 0; i < interpreter.getConfiguration().size(); i++) {
std::cout << ATTR(interpreter.getConfiguration()[i], "id") << ", ";
}
std::cout << std::endl;
std::cout << "Exiting states: ";
for (int i = 0; i < statesToExit.size(); i++) {
std::cout << ATTR(statesToExit[i], "id") << ", ";
}
std::cout << std::endl;
}
virtual void afterExitingStates(uscxml::Interpreter interpreter) {
std::cout << "After exiting states: ";
for (int i = 0; i < interpreter.getConfiguration().size(); i++) {
std::cout << ATTR(interpreter.getConfiguration()[i], "id") << ", ";
}
std::cout << std::endl;
}
virtual void onStableConfiguration(uscxml::Interpreter interpreter) {
if (alreadyAnswered)
return;
Arabica::XPath::NodeSet<std::string> configuration = interpreter.getConfiguration();
uscxml::Data reply;
reply.compound["sessionToken"] = uscxml::Data(interpreter.getName());
std::string seperator;
for (size_t i = 0; i < configuration.size(); i++) {
if (uscxml::Interpreter::isAtomic(configuration[i]))
reply.compound["nextConfiguration"].array.push_back(uscxml::Data(ATTR(configuration[i], "id"), uscxml::Data::VERBATIM));
}
std::cout << "---- reply:" << std::endl;
std::cout << reply << std::endl;
std::stringstream replyString;
replyString << reply;
alreadyAnswered = true;
uscxml::HTTPServer::Request httpRequest = _interpreters[interpreter.getName()].second;
uscxml::HTTPServer::Reply httpReply(httpRequest);
httpReply.content = replyString.str();
uscxml::HTTPServer::reply(httpReply);
}
bool httpRecvRequest(const uscxml::HTTPServer::Request& request) {
// uscxml::HTTPServer::Reply httpReply(request);
// uscxml::HTTPServer::reply(httpReply);
// return;
std::cout << "---- received:" << std::endl;
// evhttp_request_own(request.curlReq);
std::cout << request.data.compound.at("content").atom << std::endl;
uscxml::Data jsonReq = uscxml::Data::fromJSON(request.data.compound.at("content").atom);
std::cout << jsonReq << std::endl;
// is this a load request?
if (jsonReq.compound.find("load") != jsonReq.compound.end()) {
std::string filename = jsonReq.compound["load"].atom;
std::cout << "Starting Interpreter with " << filename << std::endl;
alreadyAnswered = false;
std::map<std::string, std::pair<uscxml::Interpreter, uscxml::HTTPServer::Request> >::iterator interpreterIter = _interpreters.begin();
while(interpreterIter != _interpreters.end()) {
// if (interpreterIter->second.second.curlReq == NULL) {
_interpreters.erase(interpreterIter++);
// } else {
// interpreterIter++;
// }
}
uscxml::Interpreter interpreter = uscxml::Interpreter::fromURI(filename);
if (interpreter) {
std::string token = uscxml::toStr(lastToken++);
assert(_interpreters.find(token) == _interpreters.end());
interpreter.setName(token);
interpreter.addMonitor(this);
_interpreters[token] = std::make_pair(interpreter, request);
interpreter.start();
}
return true;
}
if(jsonReq.compound.find("event") != jsonReq.compound.end()) {
assert(jsonReq.compound["event"].compound.find("sessionToken") != jsonReq.compound["event"].compound.end());
std::string token = jsonReq.compound["event"].compound["sessionToken"].atom;
assert(_interpreters.find(token) != _interpreters.end());
uscxml::Event event;
event.eventType = uscxml::Event::INTERNAL;
event.name = jsonReq.compound["event"].compound["name"].atom;
std::cout << "Sending event " << event << std::endl;
// evhttp_request_free(_interpreters[token].second);
alreadyAnswered = false;
_interpreters[token].second = request;
_interpreters[token].first.receive(event);
}
return true;
}
void setURL(const std::string& url) {
std::cout << "Listening at " << url << std::endl;
}
};
int TestIOProcessor::lastToken;
bool TestIOProcessor::alreadyAnswered;
std::map<std::string, std::pair<uscxml::Interpreter, uscxml::HTTPServer::Request> > TestIOProcessor::_interpreters;
int main(int argc, char** argv) {
TestIOProcessor* testServer = new TestIOProcessor();
uscxml::HTTPServer::registerServlet("test", testServer);
while(true)
tthread::this_thread::sleep_for(tthread::chrono::milliseconds(20));
}
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