Add new class method to build from noodles promise, and add execute() method

Author: raar1

fairworkflows/fairworkflow.py

@@ -68,6 +68,10 @@ def from_rdf(cls, rdf: rdflib.Graph, uri: str,
         self.anonymise_rdf()
         return self
 
+    @classmethod
+    def from_noodles_promise(cls, noodles_promise):
+        self.noodles_promise = noodles_promise
+
     def _extract_steps(self, rdf, uri, fetch_steps=False):
         """Extract FairStep objects from rdf.
 
@@ -327,6 +331,12 @@ def display(self):
                 rdf2dot(self._rdf, f)
             return graphviz.Source.from_file(filename)
 
+    def execute(self, num_threads=1):
+        if num_threads==1:
+            return run_single(self.noodles_promise)
+        elif num_threads>1:
+            return run_parallel(self.noodles_promise, num_threads)
+
     def draw(self, filepath):
         """Visualize workflow.