private Iterator getMatchingResourceAccessGateHandlerIterator()

in src/main/java/org/apache/sling/resourceaccesssecurity/impl/ResourceAccessSecurityImpl.java [57:108]

40 lines of code
6 McCabe index (conditional complexity)


    private Iterator<ResourceAccessGateHandler> getMatchingResourceAccessGateHandlerIterator(
            final String path, final ResourceAccessGate.Operation operation) {
        //
        // TODO: maybe caching some frequent paths with read operation would be
        // a good idea
        //
        final List<ResourceAccessGateHandler> handlers = allHandlers;
        if (!handlers.isEmpty()) {

            final Iterator<ResourceAccessGateHandler> iter = handlers.iterator();
            return new Iterator<ResourceAccessGateHandler>() {

                private ResourceAccessGateHandler next;

                {
                    peek();
                }

                private void peek() {
                    this.next = null;
                    while ( iter.hasNext() && next == null ) {
                        final ResourceAccessGateHandler handler = iter.next();
                        if (handler.matches(path, operation)) {
                            next = handler;
                        }
                    }
                }

                @Override
                public boolean hasNext() {
                    return next != null;
                }

                @Override
                public ResourceAccessGateHandler next() {
                    if ( next == null ) {
                        throw new NoSuchElementException();
                    }
                    final ResourceAccessGateHandler handler = this.next;
                    peek();
                    return handler;
                }

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

        return null;
    }