https://answers.axonivy.com/questions/1383/how-to-dynamically-start-a-task-from-a-process-that-was-started-from-an-html-dialog<p>Hi all,</p> <p>In a JSF Dialog we can start a task dynamically with: </p><pre><code>FacesContext.getCurrentInstance().getExternalContext().redirect(ivy.html.taskstartref(ivy.wf.findTask(95)));</code></pre><p></p> <p>We can also start an IProcess dynamically with something like that: </p><pre><code>IRequest request = requestFactory.createRequest(processStart, thisMapOrEmptyMapIfNull(params)); IResponse response = responseFactory.createResponse(); IRequestHandler requestHandler = (IRequestHandler)processStart.getProcessModelVersion().getAdapter(IProcessEngine.class); requestHandler.handleRequest(request, response); </code></pre><p></p> <p>Now we would like to combine both to start a process dynamically that should in turn start a task. The process can be started from within the JSF Dialog.<br> In the started process, as we are not in the JSF context, the following does not work (fails silently):</p><pre><code>FacesContext.getCurrentInstance().getExternalContext().redirect(ivy.html.taskstartref(ivy.wf.findTask(95)));</code></pre> The following code does not work as well (fails silently):<pre><code>IHttpResponse resp = ivy.response as IHttpResponse; resp.sendRedirect(ivy.html.taskstartref(in.task));</code></pre><p></p> <p>We tried also: </p><pre><code>IHttpResponse resp = ivy.response as IHttpResponse; HttpServletResponse sresp = resp.getHttpServletResponse(); sresp.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY); sresp.setHeader("Location",ivy.html.taskstartref(in.task)); sresp.sendRedirect(ivy.html.taskstartref(in.task)); sresp.flushBuffer();</code></pre> Here we get:<br> IllegalStateException: Cannot change buffer size after data has been written<br> Cannot set content type. Response already committed<p></p> <p>Is there a possibility to achieve what we try to do? Like for the process-start I have tried to find a proper IRequestHandler for starting a task. I have not found it.</p> <p>Thanks a lot in advance</p> <p>Emmanuel</p>enSun, 05 Jul 2015 22:39:18 -0400https://answers.axonivy.com/questions/1383/how-to-dynamically-start-a-task-from-a-process-that-was-started-from-an-html-dialog/1390<p>Hello Flavio,</p> <p>Thanks for your help, so I post the solution for others here.</p> <ol> <li>in our HTML Dialog we trigger the process start with our ProcessStarter and pass the TaskId to start as parameter</li> <li>The process retrieves the task start url with <code>[out.redirectUrl = ivy.html.taskstartref(in.task);]</code></li> <li>At the end of the process there is an End Page that points to a "redirect-end-page.jsp" using this redirectUrl for redirecting the user automatically to the Task. (<code>document.location.href='&lt;%=redirectTask%&gt;'</code>)</li> </ol> <p>Thanks again Flavio!</p> <p>Emmanuel</p>EmmanuelSun, 05 Jul 2015 22:39:18 -0400https://answers.axonivy.com/questions/1383/how-to-dynamically-start-a-task-from-a-process-that-was-started-from-an-html-dialog/1390