light modification

models/workflow/graph/graph.go

@@ -14,6 +14,26 @@ type Graph struct {
 	Links []GraphLink          `bson:"links" json:"links" default:"{}" validate:"required"` // Links is the list of links between elements in the graph
 }
 
+func (wf *Graph) IsProcessing(item GraphItem) bool {
+	return item.Processing != nil
+}
+
+func (wf *Graph) IsCompute(item GraphItem) bool {
+	return item.Compute != nil
+}
+
+func (wf *Graph) IsData(item GraphItem) bool {
+	return item.Data != nil
+}
+
+func (wf *Graph) IsStorage(item GraphItem) bool {
+	return item.Storage != nil
+}
+
+func (wf *Graph) IsWorkflow(item GraphItem) bool {
+	return item.Workflow != nil
+}
+
 func (g *Graph) GetAverageTimeRelatedToProcessingActivity(start time.Time, processings []*resources.ProcessingResource, resource resources.ResourceInterface,
 	f func(GraphItem) resources.ResourceInterface, request *tools.APIRequest) (float64, float64) {
 	nearestStart := float64(10000000000)