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/**
* @file
* @author 2012-2013 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
*/
#include "USCXMLInvoker.h"
#include <glog/logging.h>
#include "uscxml/dom/DOMUtils.h"
#include <DOM/SAX2DOM/SAX2DOM.hpp>
#ifdef BUILD_AS_PLUGINS
#include <Pluma/Connector.hpp>
#endif
namespace uscxml {
#ifdef BUILD_AS_PLUGINS
PLUMA_CONNECTOR
bool pluginConnect(pluma::Host& host) {
host.add( new USCXMLInvokerProvider() );
return true;
}
#endif
USCXMLInvoker::USCXMLInvoker() : _cancelled(false) {
_parentQueue._invoker = this;
}
USCXMLInvoker::~USCXMLInvoker() {
};
void USCXMLInvoker::uninvoke() {
_cancelled = true;
Event event;
event.name = "unblock.and.die";
if (_invokedInterpreter)
_invokedInterpreter.receive(event);
}
boost::shared_ptr<InvokerImpl> USCXMLInvoker::create(InterpreterImpl* interpreter) {
boost::shared_ptr<USCXMLInvoker> invoker = boost::shared_ptr<USCXMLInvoker>(new USCXMLInvoker());
invoker->_parentInterpreter = interpreter;
return invoker;
}
Data USCXMLInvoker::getDataModelVariables() {
Data data;
return data;
}
void USCXMLInvoker::send(const SendRequest& req) {
if (_invokedInterpreter)
_invokedInterpreter.receive(req);
}
void USCXMLInvoker::cancel(const std::string sendId) {
assert(false);
}
void USCXMLInvoker::invoke(const InvokeRequest& req) {
_cancelled = false;
if (req.src.length() > 0) {
_invokedInterpreter = Interpreter::fromURL(req.src);
} else if (req.dom) {
Arabica::DOM::DOMImplementation<std::string> domFactory = Arabica::SimpleDOM::DOMImplementation<std::string>::getDOMImplementation();
Arabica::DOM::Document<std::string> dom = domFactory.createDocument(req.dom.getNamespaceURI(), "", 0);
// we need to import the parent - to support xpath test150
Arabica::DOM::Node<std::string> newNode = dom.importNode(req.dom, true);
dom.appendChild(newNode);
// TODO: where do we get the namespace from?
_invokedInterpreter = Interpreter::fromDOM(dom, _interpreter->getNameSpaceInfo(), _interpreter->getSourceURL());
} else if (req.content.size() > 0) {
_invokedInterpreter = Interpreter::fromXML(req.content, _interpreter->getSourceURL());
} else {
LOG(ERROR) << "Cannot invoke nested SCXML interpreter, neither src attribute nor content nor DOM is given";
}
if (_invokedInterpreter) {
if (req.elem && HAS_ATTR(req.elem, "initial")) {
_invokedInterpreter.setInitalConfiguration(tokenize(ATTR(req.elem, "initial")));
}
DataModel dataModel(_invokedInterpreter.getImpl()->getDataModel());
_invokedInterpreter.getImpl()->setParentQueue(&_parentQueue);
// copy monitors
std::set<InterpreterMonitor*>::const_iterator monIter = _interpreter->_monitors.begin();
while(monIter != _interpreter->_monitors.end()) {
if ((*monIter)->copyToInvokers()) {
_invokedInterpreter.getImpl()->_monitors.insert(*monIter);
}
monIter++;
}
// transfer namespace prefixes
_invokedInterpreter.setNameSpaceInfo(_parentInterpreter->getNameSpaceInfo());
_invokedInterpreter.getImpl()->_sessionId = req.invokeid;
/// test240 assumes that invoke request params will carry over to the datamodel
_invokedInterpreter.getImpl()->setInvokeRequest(req);
_invokedInterpreter.start();
} else {
/// test 530
_parentInterpreter->receive(Event("done.invoke." + _invokeId, Event::PLATFORM));
}
}
void USCXMLInvoker::ParentQueue::push(const SendRequest& event) {
// test 252
if (_invoker->_cancelled)
return;
SendRequest copyEvent(event);
// this is somewhat hidden here!
copyEvent.invokeid = _invoker->_invokeId;
_invoker->_parentInterpreter->receive(copyEvent);
}
}
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