Java EE 8 Design Patterns and Best Practices

Implementing the FileUploadResource class

FileUploadResource is a resource class that uses JAX-RS to create a RESTful service to upload a file with JPG, PDF, and ZIP extensions. The following code contains the FileUploadResource resource class:

import javax.inject.Inject;import javax.ws.rs.Consumes;import javax.ws.rs.POST;import javax.ws.rs.Path;import javax.ws.rs.core.Response;import java.io.File;import java.io.IOException;@Path("upload")public class FileUploadResource {    @Inject    private PdfHandler pdfHandler;    @Inject    private JpgHandler jpgHandler;    @Inject    private ZipHandler zipHandler;    @Consumes("application/pdf")    @POST    public Response uploadPdf(File file) throws IOException {        FileBean fileBean = new FileBean(file, "pdf");        pdfHandler.handler( ...