Code to traverse an ontology via DFS

DFSTraverseOntology.java

public static OWLClass getUnvisitedChild(OWLClass owl, OWLOntology pOnt){
		Set<OWLClassExpression> children = owl.getSubClasses(pOnt);
		Iterator<OWLClassExpression> childIt = children.iterator();
		while(childIt.hasNext()){
			OWLClass currentChild = childIt.next().asOWLClass();
			if(!visited.contains(currentChild)){
				return currentChild;
			}
		}
		return owl;
	}

	private static Boolean altCompFieldContainsConcept(OWLClass pCompField, OWLOntology pOnt, String pConceptName) {
		ArrayList<OWLClass> levelIndicator = new ArrayList<>();
		Mapping.found = false;
		logger.info("Searching for: " + pConceptName);
		logger.info("BEGIN : " + pCompField.toString());
		Stack<OWLClass> stack = new Stack<>();
		stack.push(pCompField);
		visited.add(pCompField);
		System.out.println(pCompField);
		Set<OWLClassExpression> children = pCompField.getSubClasses(pOnt);

		if(pConceptName.toLowerCase().equals(pCompField.getIRI().getShortForm())){
			levelIndicator.add(pCompField);
		}

		while (!(stack.isEmpty())) {
			OWLClass search = stack.peek();
			OWLClass child = getUnvisitedChild(search, pOnt);
			if (child != search) {
				visited.add(child);
				stack.push(child);
				System.out.println(child);
			} else {
				stack.pop();
			}
		}
		visited.clear();
		return true;
	}