Server-Side Implementation of Unary RPC
Write the service implementation of the deleteFile method.
In this lesson, we show the server-side implementation of the unary deleteFile RPC. The server side is implemented in the ftp-service module. Open the FTPService class from the src/main/java/io/datajek/ftpservice/server package. This class implements the FTP service defined in the proto file. In the FTPService class defined in the Setting up a gRPC Service lesson, we have defined the deleteFile method as follows:
@Overridepublic void deleteFile(MetaData request, StreamObserver<Result> responseObserver) {}
Flowchart of deleteFile method
The deleteFile method handles the deletion of a file from the server’s destination directory. It performs checks for the file’s existence and type, attempts the deletion, sends the appropriate response to the client, and logs relevant information during the delete process. The flow chart of the method is shown below.
deleteFile method
On the server side, the deleteFile method deletes a file in the server’s destination directory. If the file isn’t present, the status FILE_NOT_PRESENT is sent to the client.
The method takes two parameters: request of type MetaData and responseObserver of type ...