@NotNull
    @Override
    @JsonProperty("queue")
    @JsonPropertyDescription("Adds multi-threading and retry control to this forwarder. Can be set to null " +
                             "for a local file forwarder, but should be populated if the file forwarder is " +
                             "forwarding to a remote file system that may fail. Defaults to null as a " +
                             "local file forwarder is assumed.")
    public ForwardFileQueueConfig getForwardQueueConfig() {
        return forwardQueueConfig;
    }
The template to create subdirectories within the 'path' directory.
The default value is <code>${year}${month}${day}/${feed}</code>
Must be a relative path.
stroom-proxy/stroom-proxy-app/src/main/java/stroom/proxy/app/handler/ForwardFileConfig.java