//tag::ref-doc[] = File Source This application polls a directory and sends new files or their contents to the output channel. The file source provides the contents of a File as a byte array by default. However, this can be customized using the --file.supplier.mode option: * ref Provides a java.io.File reference * lines Will split files line-by-line and emit a new message for each line * contents The default. Provides the contents of a file as a byte array When using `--file.supplier.mode=lines`, you can also provide the additional option `--file.supplier.withMarkers=true`. If set to true, the underlying FileSplitter will emit additional start-of-file and end-of-file marker messages before and after the actual data. The payload of these 2 additional marker messages is of type `FileSplitter.FileMarker`. The option withMarkers defaults to false if not explicitly set. == Options The **$$file$$** $$source$$ has the following options: //tag::configuration-properties[] //end::configuration-properties[] //end::ref-doc[]