public Iterator getKeys()

in archaius2-core/src/main/java/com/netflix/archaius/config/AbstractConfig.java [227:274]

43 lines of code
6 McCabe index (conditional complexity)


    public Iterator<String> getKeys(final String prefix) {
        return new Iterator<String>() {
            final Iterator<String> iter = getKeys();
            String next;

            {
                while (iter.hasNext()) {
                    next = iter.next();
                    if (next.startsWith(prefix)) {
                        break;
                    }
                    else {
                        next = null;
                    }
                }
            }
            
            @Override
            public boolean hasNext() {
                return next != null;
            }

            @Override
            public String next() {
                if (next == null) {
                    throw new IllegalStateException();
                }
                
                String current = next;
                next = null;
                while (iter.hasNext()) {
                    next = iter.next();
                    if (next.startsWith(prefix)) {
                        break;
                    }
                    else {
                        next = null;
                    }
                }
                return current;
            }

            @Override
            public void remove() {
                throw new UnsupportedOperationException();
            }
        };
    }