Get file resource in a Jersey 3

Question

I am running a web application using Jersey. In my controller, I am trying to get a file in src/main/resources folder.

My folder structure is:

My gradle dependencies are:

dependencies {
    implementation group: 'org.glassfish.jersey.containers', name: 'jersey-container-servlet', version: '3.0.2'
    implementation group: 'org.glassfish.jersey.inject', name: 'jersey-hk2', version: '3.0.2'
    implementation group: 'org.glassfish.jersey.media', name: 'jersey-media-moxy', version: '3.0.2'
}

My code is:

@GET
@Path(value = "/log/details/{fileId}")
@Produces(MediaType.APPLICATION_JSON)
public List<IngestionLogs> getIngestionLogDetails(@PathParam("fileId") String fileId) {
    List<IngestionLogs> logs = new ArrayList<>();

    try {
        InputStream stream; // how do I get this?
        List<IngestionLogs> errors = TsvFileValidators.parseObject(stream);
        logs.addAll(errors);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    
    return logs;
}

How do I get an InputStream for this file?

See if it helps https://stackoverflow.com/questions/2797162/getresourceasstream-is-always-returning-null — Ori Marko, Jul 14 '21 at 10:27
@user7294900 How do I get the ServletContext in Jersey 3.0.2? — khateeb, Jul 14 '21 at 10:36
tried it already. Not able to import `jakarta.servlet.ServletContext` https://jakarta.ee/specifications/servlet/5.0/apidocs/jakarta/servlet/servletcontext — khateeb, Jul 14 '21 at 10:42
If you are missing add relevant jar as `jakarta.servlet-api-5.0.0.jar` — Ori Marko, Jul 14 '21 at 11:02
@user7294900 Yes, but shouldn't it be available already from Tomcat? — khateeb, Jul 14 '21 at 11:04

score 1 · Accepted Answer · answered Jul 14 '21 at 11:14

You can get it by servletContext.getResourceAsStream

 InputStream is = servletContext.getResourceAsStream("/WEB-INF/test_model.js");

Add ServletContext using @Context

@Context private ServletContext servletContext;

If you are missing import jakarta.servlet.ServletContext add to dependency jakarta.servlet-api

Get file resource in a Jersey 3

1 Answers1