Questions Tagged With rest

Consuming Rest in Plugin Project

Genzer Hawker — Mon, 03 Jun 2019 09:22:49 -0400

Currently, I face the difficulties that there are some lacking libraries when I consuming rest API in Ivy plugin I follow this instruction : https://answers.axonivy.com/questions/2477/how-to-register-my-code-that-runs-on-every-engine-startup When user logs in, logs out or gets time-out, I want to call rest service to do some stuff:

But I get an error like this when calling rest service in the plugin:

Currently, I just add some dependencies like this picture into the plugin but it doesn't work

Do you have any hint or any suggestion for this problem? Thanks in advance :)

How can I use JAX-RS ContainerRequestFilter/ResponseFilter for my JAX-RS resources.

Genzer Hawker — Mon, 10 Sep 2018 02:24:40 -0400

Hi,

I want to implement my own ContainerRequestFilter and ContainerResponseFilter for my JAX-RS resources in my Axon.ivy projects. Typically, I would create an implementation of the filter:

import java.util.logging.*;

@Provider
 public class MyRequestFilter implements ContainerRequestFilter {
    @Override
    public void filter(ContainerRequestContext requestContext)
            throws IOException {
        Logger.getLogger("Test").log(Level.WARNING, "LOOK MA! IT WORKS");
    }
}

I assume that Jersey will register my filter and it will works. However, I got

javax.servlet.ServletException: java.lang.IllegalStateException: Request scope has been already shut down.
        at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:489)
        at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
...
Caused by: java.lang.IllegalStateException: Request scope has been already shut down.
        at jersey.repackaged.com.google.common.base.Preconditions.checkState(Preconditions.java:173)
        at org.glassfish.jersey.process.internal.RequestScope.retrieveCurrent(RequestScope.java:239)
        at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:314)
        at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
        at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
        at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
        ... 46 more

..when I call my resources.

Is it possible (at all) to use ContainerRequestFilter/ResponseFilter (and Feature, DynamicFeature) in an Axon.ivy project? And without introducing JAR files into webapps/ivy/WEB-INF/lib/?

Thanks

Is it possible to access Ivy's RESTful API from an HtmlDialog or within the same session?

Genzer Hawker — Wed, 22 Feb 2017 08:26:22 -0500

Hi Ivy Team

I have a HtmlDialog containing several links to our RESTful API (implemented using Axon.ivy). However, every time the user accesses to the API, the browser requires authentication even though the user has already logged in.

I'm aware of the javax.annotation.security.PermitAll/DenyAll (-- which seems to be the only annotations supported?) but I want to keep the Basic authentication intact.

Say the page could be like this:

< !-- The HelloWorld dialog -->
< h:html>
    < h:body>
        < h:outputLink value="/ivy/api/designer/helloworld" target="_blank">
            Click to see Hello World
         < /h:outputLink>

        < h:outputLink value="/ivy/file/designer/session/some_file_already_created.txt" target="_blank">
            Get content of file
        < /h:outputLink>
    < h:/body>
< /h:html>

The first link will require authentication whereas the second works normally.

Is there a possible way to overcome this?

JAX-RS method returns StreamingOutput fails with "Access to ivy environment outside a process request thread is not possible"

Genzer Hawker — Mon, 03 Oct 2016 14:50:20 -0400

Hi Ivy team

I want to build a JAX-RS API returning response in a streaming manner (chunked transfer encoding). The code looks like below:

@Path("{applicationName}/streams")
public class StreamingResponseRestSResource {

    @GET
    public Response getStreamingResponse() {

        // This works by keeping a reference then pass it to the anonymous class.
        // It may NOT work in all situations.
        final Logger logger = Ivy.log();


        StreamingOutput streamingOutput = new StreamingOutput() {

            @Override
            public void write(OutputStream output) throws IOException,
                    WebApplicationException {

                PrintWriter out = new PrintWriter(new BufferedWriter(
                        new OutputStreamWriter(output)), true);

                Ivy.log().error("HHH - BREAK HERE");

                logger.error("HHH - It works with passed reference of Logger");

                IntStream.range(0, 100_000)
                    .forEach(c -> out.println("HHH - Count up to " + c));

            }
        };

        return Response.ok(streamingOutput).build();
    }
}

Full code here: http://pastebin.com/tEAMGFB3

If I do

curl -i -u Developer:Developer http://localhost:8081/ivy/api/designer/streams

the response would be:

{ "errorId": "1578A42A15718503", "errorMessage": "Access to ivy environment outside a process request thread is not possible.\nCurrent thread: Thread[http-nio-8081-exec-14,5,main]", "statusCode": 500 }

If I comment out the line ...

Ivy.log().error("HHH - BREAK HERE");

...the error disappears.

Is there anyway to fix the access to Ivy with StreamingOutput implementation?