public IdBean getRandomIdForRelation()

in gremlin/neptune-social-media-utils/src/main/java/com/aws/neptune/utils/generator/IdStore.java [100:142]
43 lines of code
13 McCabe index (conditional complexity)

    public IdBean getRandomIdForRelation(int leftId) {
        IdBean ids = new IdBean();
        ids.left = leftId;
        if (multiplicity.equals("SIMPLE")) {
            ids.right = getRandomIdWithException(
                                            relation.right,
                                            simpleStore.getIds(ids.left));
            if ( -1 == ids.right) {
                throw new SupernodeException(relation,ids);
            }
            simpleStore.put(leftId, ids.right);
        }else if (multiplicity.equals("ONE2ONE")) {
            throw new RuntimeException(
                    String.format("Supernode is not applicable to %s relation", multiplicity));
        }else if (multiplicity.equals("MANY2ONE")) {
            throw new RuntimeException(
                    String.format("Supernode is not applicable to %s relation", multiplicity));
        }else if (multiplicity.equals("ONE2MANY")) {
            ids.right = getRandomIdWithException(relation.right, generalstore.getRightIds());
            if ( -1 == ids.right) {
                throw new SupernodeException(relation,ids);
            }
            if ( relation.left.equals(relation.right) && ids.left == ids.right && ! relation.selfRef) {
                List <Integer> excl = generalstore.getRightIds();
                excl.add(ids.right);
                ids.right = getRandomIdWithException(relation.right, excl);
                if ( -1 == ids.right) {
                    throw new SupernodeException(relation,ids);
                }
            }
            generalstore.putRight(ids.right);
        }else if ( multiplicity.equals("MULTI")) {
            List <Integer> excl = null;
            excl = new ArrayList<Integer>();
            if ( ! relation.selfRef) {
                excl.add(ids.left);
            }
            ids.right = getRandomIdWithException(relation.right, excl);
        }else {
            throw new MultiplicityException(multiplicity);
        }
        return ids;
    }