private void walkUpTree()

in xmlschema-walker/src/main/java/org/apache/ws/commons/schema/docpath/XmlSchemaPathFinder.java [1524:1571]
37 lines of code
8 McCabe index (conditional complexity)

    private void walkUpTree(QName currElem) {
        final XmlSchemaStateMachineNode state = currentPath.getStateMachineNode();

        switch (state.getNodeType()) {
        case ANY:
            break;
        case ELEMENT:
            if (!state.getElement().getQName().equals(currElem)) {
                throw new IllegalStateException("We expected to walk upwards from element " + currElem
                                                + ", but our current element is "
                                                + state.getElement().getQName());
            }
            break;
        default:
            throw new IllegalStateException("We expected to walk upwards from element " + currElem
                                            + ", but our current position is in a node of type "
                                            + state.getNodeType());
        }

        XmlSchemaDocumentNode<U> iter = currentPath.getDocumentNode();
        XmlSchemaPathNode<U, V> path = currentPath;

        do {
            if (iter.getIteration() < iter.getStateMachineNode().getMaxOccurs()) {
                break;
            }

            if (!isPositionFulfilled(path, null).equals(Fulfillment.COMPLETE)) {
                break;
            }

            iter = iter.getParent();

            if (iter == null) {
                // We are exiting the root node. Nothing to see here!
                break;
            }

            final XmlSchemaPathNode<U, V> nextPath = pathMgr
                .addParentSiblingOrContentNodeToPath(path, XmlSchemaPathNode.Direction.PARENT);

            path.setNextNode(-1, nextPath);
            path = nextPath;

        } while (!iter.getStateMachineNode().getNodeType().equals(XmlSchemaStateMachineNode.Type.ELEMENT));

        currentPath = path;
    }