Initial commit

src/common/wfs/WorkflowTemplate.cpp

@@ -0,0 +1,72 @@
+
+#include <wfr/common/wfs/WorkflowTemplate.h>
+#include <wfr/common/wfs/Workflow.h>
+#include <wfr/common/wfs/ActivityTemplate.h>
+#include <wfr/WorkflowRuntime.h>
+#include <boost/format.hpp>
+
+namespace wfr {
+namespace wfs {
+
+
+WorkflowTemplate::WorkflowTemplate( const std::string& name,
+								    wfr_id_t topLevelActivityID,
+								    std::initializer_list<ActivityTemplate*> activities)
+		: activities(activities), workflowName(name), topLevelActivityID(topLevelActivityID) {
+	if (activities.size() == 0) {
+		throw exception::wfr_fatal_error((boost::format("Workflow \"%1%\" has no activities.") % workflowName).str());
+	}
+	for (auto i : activities) {
+		i->initActivityTemplate(*this);
+	}
+	toplevelActivity = getActivityByID(topLevelActivityID);
+	if (!toplevelActivity) {
+		throw exception::wfr_fatal_error((boost::format("Workflow \"%1%\" has invalid top-level activity id %2%.") % workflowName % topLevelActivityID).str());
+	}
+	checkStructure();
+}
+
+
+WorkflowTemplate::~WorkflowTemplate() noexcept {
+	for (auto i : activities) {
+		if (i) delete i;
+	}
+	activities.clear();
+}
+
+
+ActivityTemplate* WorkflowTemplate::getActivityByID(wfr_id_t id) const noexcept {
+	ActivityTemplate* retval = nullptr;
+	for (auto i : activities) {
+		if (i->templateID == id) {
+			retval = i;
+			break;
+		}
+	}
+	return retval;
+}
+
+
+void WorkflowTemplate::checkStructure() {
+	for (auto i : activities) {
+		i->checkStructure();
+	}
+}
+
+
+std::shared_ptr<Workflow> WorkflowTemplate::execute(lwd::_wfr_lwd* input, lwd::_wfr_lwd* output) {
+	std::shared_ptr<Workflow> wf = std::shared_ptr<Workflow>(new Workflow(*this));
+	WorkflowRuntime::addWorkflowInstance(wf);
+	try {
+		wf->executeSync(input, output);
+	} catch (std::exception& e) {
+		std::cerr << "Error while executing workflow: Caught exception: " << e.what() << std::endl;
+	} catch (...) {
+		std::cerr << "Error while executing workflow: Caught unknown exception." << std::endl;
+	}
+	return wf;
+}
+
+
+} /* namespace wfs */
+} /* namespace wfr */