How to view the current position of the JBPM6 flow chart, with relevant examples of it

[hnqbl]

How to view the current position of the JBPM6 flow chart, with relevant examples of it,

Implementation as shown below

thank you very much

[dosten]

Seems like you already got this working by looking at the your screenshot.

I had to this in jBPM 5 but I am not sure if those same techniques work in 6.

[hnqbl]

Hello, you can get JBPM5 flow chart shows code to share, I this is a screenshot is seen in other posts, but no source code, you can get the flow chart of JBPM5 display code sharing it, learn about it, thank you

[dosten]

Here are two snippets that might help you out.  The first is a method that gets the instance image from guvnor (note that these URL's do not seem to work with jBPM 6).

The second is a snippet is code from a jBPM event listener that puts the x and y coordinates from the event metadata.  These are then used to overlay an arrow icon on the instance image.  I believe I learned of this method by looking at the jBPM source since it does a similar thing in the console.

   /**

    * Get process image and write to image directory.

    *

    * @param pid Process ID

    * @throws IOException if error occurs

    */

   public static void getProcessImage(String pid) throws IOException

   {

      HttpClient client = new HttpClient();

      String imageUrl = System.getProperty("guvnor.protocol", "http") + "://" + System.getProperty("guvnor.host") + "/business-central-server/rs/process/definition/" + pid + "/image";

      log.trace("imageUrl={}", imageUrl);

      GetMethod get = new GetMethod(imageUrl);

      client.executeMethod(get);

      get.releaseConnection();

      Cookie[] initcookies = client.getState().getCookies();

      log.trace("Init cookies={}", initcookies);

      String loginUrl = System.getProperty("guvnor.protocol", "http") + "://" + System.getProperty("guvnor.host") + "/business-central-server/j_security_check";

      PostMethod authpost = new PostMethod(loginUrl);

      NameValuePair userNVP = new NameValuePair("j_username", System.getProperty("guvnor.usr"));

      NameValuePair pwdNVP = new NameValuePair("j_password", System.getProperty("guvnor.pwd"));

      authpost.setRequestBody(new NameValuePair[] { userNVP, pwdNVP });

      client.executeMethod(authpost);

      log.trace("Login form post: {}", authpost.getStatusLine().toString());

      authpost.releaseConnection();

      Cookie[] logoncookies = client.getState().getCookies();

      log.trace("Logon cookies={}", logoncookies);

      log.debug("getting image from {}", get.getURI());

      int status = client.executeMethod(get);

      log.trace("status={}", status);

      // log.debug("mime type=" + get.get)

      log.debug("response content length={}", get.getResponseContentLength());

      InputStream is = get.getResponseBodyAsStream();

      File imageFile = getInstanceImageFile(pid);

      log.debug("writing image file to {}", imageFile);

      FileOutputStream fos = new FileOutputStream(imageFile);

      IOUtils.copy(is, fos);

      fos.close();

      is.close();

   }

       // snippet to get x and y coordinates for image overlay

     Integer xMetadata = null;

     Integer yMetadata = null;

     if (node.getMetaData().containsKey("x")) {

        xMetadata = (Integer) node.getMetaData().get("x");

     }

     if (node.getMetaData().containsKey("y")) {

        yMetadata = (Integer) node.getMetaData().get("y");

     }

     if (xMetadata != null && yMetadata != null && instanceId != null) {

        try {

           // overlay the arrow on the instance image

        }

        catch (Exception e) {

           log.warn(e.getLocalizedMessage());

        }

     }