protected RemoteCacheResponse processRequest()

in commons-jcs3-core/src/main/java/org/apache/commons/jcs3/auxiliary/remote/http/server/RemoteHttpCacheServlet.java [193:267]
72 lines of code
14 McCabe index (conditional complexity)

    protected RemoteCacheResponse<Object> processRequest( final RemoteCacheRequest<Serializable, Serializable> request )
    {
        final RemoteCacheResponse<Object> response = new RemoteCacheResponse<>();

        if ( request == null )
        {
            final String message = "The request is null. Cannot process";
            log.warn( message );
            response.setSuccess( false );
            response.setErrorMessage( message );
        }
        else
        {
            try
            {
                switch ( request.getRequestType() )
                {
                    case GET:
                        final ICacheElement<Serializable, Serializable> element =
                            remoteCacheService.get( request.getCacheName(), request.getKey(), request.getRequesterId() );
                        response.setPayload(element);
                        break;
                    case GET_MULTIPLE:
                        final Map<Serializable, ICacheElement<Serializable, Serializable>> elementMap =
                            remoteCacheService.getMultiple( request.getCacheName(), request.getKeySet(), request.getRequesterId() );
                        if ( elementMap != null )
                        {
                            response.setPayload(new HashMap<>(elementMap));
                        }
                        break;
                    case GET_MATCHING:
                        final Map<Serializable, ICacheElement<Serializable, Serializable>> elementMapMatching =
                            remoteCacheService.getMatching( request.getCacheName(), request.getPattern(), request.getRequesterId() );
                        if ( elementMapMatching != null )
                        {
                            response.setPayload(new HashMap<>(elementMapMatching));
                        }
                        break;
                    case REMOVE:
                        remoteCacheService.remove( request.getCacheName(), request.getKey(), request.getRequesterId() );
                        break;
                    case REMOVE_ALL:
                        remoteCacheService.removeAll( request.getCacheName(), request.getRequesterId() );
                        break;
                    case UPDATE:
                        remoteCacheService.update( request.getCacheElement(), request.getRequesterId() );
                        break;
                    case ALIVE_CHECK:
                    case DISPOSE:
                        response.setSuccess( true );
                        // DO NOTHING
                        break;
                    case GET_KEYSET:
                        final Set<Serializable> keys = remoteCacheService.getKeySet( request.getCacheName() );
                        response.setPayload( keys );
                        break;
                    default:
                        final String message = "Unknown event type.  Cannot process " + request;
                        log.warn( message );
                        response.setSuccess( false );
                        response.setErrorMessage( message );
                        break;
                }
            }
            catch ( final IOException e )
            {
                final String message = "Problem processing request. " + request + " Error: " + e.getMessage();
                log.error( message, e );
                response.setSuccess( false );
                response.setErrorMessage( message );
            }
        }

        return response;
    }