[jboss-user] [JBoss jBPM] - solved - Re: Dynamic task creation
Scull, I doesn't understood. But now It works.
At the end of all my attempts I resolved. Continue reading to know all the
story.. Hope this will help someone.
I moved The action that creates all the dynamic tasks to the node-enter of the
task to "clone" (if you followed the example in the previous post, the task in
tCompDoc)
This is the code of dynamic creation:
| Token token = executionContext.getToken();
| TaskMgmtInstance tmi = executionContext.getTaskMgmtInstance();
| TaskNode taskNode = (TaskNode) executionContext.getNode();
| Task task = taskNode.getTask("task compilazione");
| TaskInstance taskInstance = tmi.createTaskInstance(task,
executionContext);
| taskInstance.setActorId(user);
|
But the important part of this is the execution point. Remembar "node-enter of
the cloning task". Elsewhere will cause errors and token scramble.
In my sample I need a task to close every dynamic task created early, still not
ended, I put this code to the node-leave of chiusura-interpello.
This is the relevant part of code:
| if (!ti.hasEnded())
| ti.cancel();
|
thanks to every one helped me to achieve this goal
Hoping this will help someone else.
If you have any question, ask.
bye
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[jboss-user] [JBoss jBPM] - Re: Dynamic task creation
"scull" wrote : hello massimiliano_cuccia | I see you | I recommend you, that you should create an ActionHandler and asosiate it with node-enter event in tasks nodes after fork-node Scull, doesn't work, or maybe I don't understand. The node after fork-node is ChiusuraInterpello. I moved the actionIstruttoriaInterpello to the node-enter of ChiusuraInterpello, But doing so, the actionChusuraInterpello is ignored. After this test I commented all the code of actionIstruttoriaInterpello, the action actually just do some output. It seems that the dynamic creation of the tasks generates some problem to the process instance ... but i don't understand. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4147152#4147152 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4147152 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - Re: Dynamic task creation
I've tested the dleerob solution. But it doesn't works.
this is the image of the process i'm modelling
[img]http://web.tiscali.it/mcuccia/various/processimage.jpg[/img]
and this is the par file
http://web.tiscali.it/mcuccia/various/interpello.par
As you can see in this code
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when the token leaves the inizioInterpello node I execute the action class
IstruttoriaInterpello. This is the place where the new task instances are
created.
Next you can see the relevant code of IstruttoriaInterpello: for each selected
user, I create a new task, cloning "task compilazione".
| TaskMgmtDefinition tmd =
(TaskMgmtDefinition)executionContext.getDefinition(TaskMgmtDefinition.class);
| Task task = tmd.getTask("task compilazione");
| TaskMgmtInstance tmi = executionContext.getTaskMgmtInstance();
| TaskInstance taskInstance = tmi.createTaskInstance(task,
executionContext);
| taskInstance.setActorId(user);
|
BUT (here is the problem)
the newly created task has two leaving transictions named "tr1" and "tr2", and
doesn't have the (aspected) leaving transiction named "toJoinFromCompilazione".
dleerob, do you have similar problems?
anyone knows why this appens?
thanks
PS sample at 11.2.2
http://docs.jboss.com/jbpm/v3/userguide/taskmanagement.html#taskinstancesandgraphexecution
is very very similar to the dleerob code
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[jboss-user] [JBoss jBPM] - Re: Dynamic task creation
"kukeltje" wrote : how to 'bind' new tasks to a process is in the example in the wiki can you post a link? I cant find the exact paragraph I need thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4140632#4140632 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4140632 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - Re: Dynamic task creation
Actually I doesn't understand the problem. All the above code is inside a par file. You could test it by deploying the par on your jbpm engine. Should I upload the par file here? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4140630#4140630 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4140630 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - Re: Dynamic task creation
I can't find any documentation on how to dinamically create a task instance at
runtime. So the code below (and in previous post) is fruit of hours spend in
trying ... I achieved something that (seems to) works. And this is the result.
Maybe this is not the correct way, so any help needed!!
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as you can see in the xml, I created a node-leave action handler, and I call
the same class (for testing purpose only) on leaving InizioInterpello and on
leaving ChiusuraInterpello.
Below you can read the code of the action handler.
When I execute the InizioInterpello task the code is executed: I can see the
output (System.out) and when I show the task list
(context.getProcessInstance(processInstanceId).getTaskMgmtInstance().getTaskInstances())
of the process instance I see a task for every user.
But If I execute ChiusuraInterpello I can't see no output, no new task instance
were created ... it seems that my action is ignored at all. But the task is
closed correctly.
package it.unict.interpello;
|
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| import it.unict.consulta.ManagerBeansProxy;
| import it.unict.consulta.driver.data.IDocente;
| import it.unict.consulta.driver.manager.IEducationManager;
|
| import java.util.Collection;
|
| import org.jbpm.graph.exe.ExecutionContext;
| import org.jbpm.graph.exe.Token;
| import org.jbpm.graph.node.TaskNode;
| import org.jbpm.taskmgmt.def.Task;
| import org.jbpm.taskmgmt.exe.TaskInstance;
| import org.jbpm.taskmgmt.exe.TaskMgmtInstance;
|
| public class IstruttoriaInterpello implements
org.jbpm.graph.def.ActionHandler
| {
| ManagerBeansProxy mbProxy = null;
|
| public void execute(ExecutionContext executionContext) throws Exception
| {
|
System.out.println("q***");
| System.out.println("*** I can see this only when leaving
InizioInterpello, but nothing is shown when executing ChiusuraInterpello ***");
|
System.out.println("***");
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System.out.println("***");
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System.out.println("***");
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System.out.println("***");
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| mbProxy = new ManagerBeansProxy();
| IEducationManager edu = mbProxy.getMEducation();
|
| if (edu == null)
| throw new RuntimeException("EducationManager non
disponibile");
|
| try
| {
| // determine the sets of users
| Collection lDoc = edu.listaDocenti();
|
| if (lDoc == null || lDoc.size() == 0)
| throw new RuntimeException("Nessun docente");
|
| // for each user creates a personal task instance
| for (IDocente d : lDoc)
| {
| String uname = d.getUsername();
| createAndAssignTask(uname, executionContext);
| }
| }
| catch (Exception ex)
| {
| System.out.println(ex);
| createAndAssignTask("admin", executionContext);
| }
| }
|
| public void createAndAssignTask(String user, ExecutionContext
executionContext)
| {
| Token token = null;
| TaskMgmtInstance tmi = null;
| TaskNode taskNode = null;
|
| try
| {
| token = executionContext.getToken();
| tmi = executionContext.getTaskMgmtInstance();
| taskNode = (TaskNode) executionContext.getNode();
|
| // create the new task instance, a clone of tCompDoc
| Task doCompilaDocumento = taskNode.getTask("tCompDoc");
| TaskInstance tCompDoc =
tmi.createTaskInstance(doCompilaDocumento, token);
|
| // set the name of the task, the actor that this task
is assigned to, and set the creation date
| tCompDoc.setName("consulta: convocazione " + user);
| tCompDoc.setActorId(user);
| tCompDoc.setCreate(token.getEnd(
[jboss-user] [JBoss jBPM] - Re: Dynamic task creation
Thanks kukeltje, but I really don't know what information i omitted! Now I try to explain what I want to achieve, maybe someone can inspire me a new way. I want that, after a certain process task, each user in a set must execute a task. I don't know in advance how many users can be involved (i have a query to determine the set of users) this is why my process can't be fully designed in advance. any ideas? thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4138672#4138672 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4138672 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - Re: Dynamic task creation
UP! please help View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4138666#4138666 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4138666 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - Dynamic task creation
Hi all
I have a process named Interpello that, at a certains point, executes the task
InizioInterpello.
I attached at the node-leave event an action (actionIstruttoriaInterpello).
This action have to create a task instance for a number of users (i mean a task
that each selected user must execute).
The code below (createAndAssignTask) does the work, but when the process
arrives to the task ChiusuraInterpello, it should execute the action
actionChiusuraInterpello (actually just display some outputs via println)
but it doesn't execute nothing (I can't see the output), and the execution
process doesn't step to verificaFinale.
Everything goes well if I comment all the createAndAssignTask code invocation
in the actionIstruttoriaInterpello
There is something wrong in the code below (dynamic task creation)?
thanks
I'm using jbpm 3.1.2
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| public void createAndAssignTask(String user, ExecutionContext
executionContext)
| {
| Token token = null;
| TaskMgmtInstance tmi = null;
| TaskNode taskNode = null;
|
| try
| {
| token = executionContext.getToken();
| tmi = executionContext.getTaskMgmtInstance();
| taskNode = (TaskNode) executionContext.getNode();
|
| Task doCompilaDocumento = taskNode.getTask("tCompDoc");
| TaskInstance tCompDoc =
tmi.createTaskInstance(doCompilaDocumento, token);
|
| tCompDoc.setName("consulta: convocazione " + user);
| tCompDoc.setActorId(user);
| tCompDoc.setCreate(token.getEnd());
|
| tCompDoc.setVariableLocally("XXX"+user, "");
| //tCompDoc.assign(executionContext);
| tmi.addTaskInstance(tCompDoc);
| System.out.println("creato: " +
tCompDoc);
| } catch (Exception ex)
| {
| ex.printStackTrace();
| }
| }
|
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[jboss-user] [JBoss jBPM] - terminate a process instance
I'm sorry, but I'm not finding how to terminate a process instance with "terminate" i mean that the process has a termination date and there can't be executable tasks how can I achieve this??? thanks regards Massimiliano Cuccia View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4087844#4087844 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4087844 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - How to stop a process instance?
How to stop the execution of a process instance? Suppose to have a process instance executing in jBPM, what have I to do to stop it? I mean "suddendly stop" it, an operation that the admin user can apply to process instances where execution accidentally started (for example) I have read about the method cancel, but it is not clear what really happens when this method is called have I to call the cancel method for every task instance of the process instance? thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4085109#4085109 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4085109 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - revoke assignment
I have a task assigned to group(administrators)
and i get a TaskInstance and assign the actor to admin1 using this code
ti.setActorId("admin1");
so the task is corrently assigned to the user "admin1" (member of group
"administrators")
How do I revoke this assignment?
actually I want that the task goes into original state: assigned to the
"administrators" group. Is it possible?
thanks
regards
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[jboss-user] [JBoss jBPM] - Re: create task at runtime
FIXED!!! I changed some things I attached the handler on node leave in the handler I created the new task and created a new variable using tCompDoc.setVariableLocally(varname, varvalue); then in the action to execute a task I called ti.getVariablesLocally() to obtains the list of variables defined in the executing task now I doesn't care about ti.getTask that is null i doesn't care about a taskcontroller i doesn't care about any other boring stuff thanks to syngolis! If someone has any questions about my code can ask me! regards View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4067390#4067390 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4067390 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - Re: create task at runtime
"syngolis" wrote : "massimiliano_cuccia" wrote : (this means that ti.getTask()
is null)
|
| No, this means getTaskController() is null,
|
I'm sorry, but you are wrong
to prove this I added these few lines
System.out.println( "ti: " + ti );
| System.out.println( "ti.getTask(): " + ti.getTask() );
| System.out.println( "ti.getTask().getTaskController(): " +
ti.getTask().getTaskController() );
|
and obtained this output
ti: TaskInstance[creato a runtime]
| ti.getTask(): null
| java.lang.NullPointerException
| at it.acme.action.AttivitaEsecuzione.execute(AttivitaEsecuzione.java:71)
|
"syngolis" wrote :
| Try it without the controller
|
do you know a way to do this without the controller?
"syngolis" wrote :
| or create one.
|
ok, i'm trying this
"syngolis" wrote :
| In order to get variables (without variableaccess):
| taskInstance.getVariable("Name")
|
but I doesn't know the variable name
I'm writing an action to execute a generic task and the variable name is
decided at design time!!
I'm searching for the testcases
thanks
any other can help?
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[jboss-user] [JBoss jBPM] - Re: create task at runtime
"syngolis" wrote : I think the null pointer exception is correct. AFAIK if you
create a task, there is no task controller created automatically. (Think of a
processdefinition; there you have to declare the controller as well)
| And the get operation results in a null pointer because no controller
exists.
|
thanks syngolis
I think that you are right: it is possible.
So I want to list all and only the variables linked to the task (not the "all
task of the process"). At now I'm doing this
TaskController taskController = ti.getTask().getTaskController();
| if (taskController!=null)
| {
| List variableAccesses = taskController.getVariableAccesses();
| Iterator i = variableAccesses.iterator();
| while (i.hasNext())
| {
| // do something
| }
| }
but the first row gives the null pointer exception (this means that
ti.getTask() is null)
so if you are right, the question is
how to list the variables of the task?
regards
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[jboss-user] [JBoss jBPM] - Re: create task at runtime
the first portion of code is from the handler, the name for the newly created task is newti the second portion of code is from the struts action to execute a generic task, that i'm using to execute this task also. In this fragment the name of the task instance is ti. It isn't a java mistake ... be sure! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4067048#4067048 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4067048 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - Re: Defining the type of a task variable in XML
well, we are overriding jpdl name for the variables using syntax like name:type so if in a task I have a variable named SAMPLE of type INT we will design our task variables using this name "SAMPLE:INT" We wrote a jsp page to understand and format the input accordingly to this syntax hope this helps regards View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4067032#4067032 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4067032 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss jBPM] - create task at runtime
In a process I defined an handler for a transition.
This handler should create a new task, this is the code of the handler:
TaskInstance newti =
executionContext.getProcessInstance().getTaskMgmtInstance().createTaskInstance();
| newti.setName("created at runtime");
| newti.addComment("created after the task named 'definition1' .");
| newti.setActorId("admin");
| newti.setVariable("sample_var", "12345");
|
so, when I try to execute this task (and even other tasks) I obtains a null
pointer exception executing this code
TaskController taskController = ti.getTask().getTaskController();
I'm using this code to obtains the list of variables for the executing task (so
this list should contain only "sample_var" in this example)
Now, am I wrong on task creation code?
or maybe have I to retrieve the list of variables in another way?
thanks for your help
regards
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[jboss-user] [JBoss jBPM] - Re: can't get task list of an actor
it seems something like the user ernie doesn't exists. maybe is "ernie" the user involved in the subsequent task? or maybe it is "participant", that I see resolves to "ernie" View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4067021#4067021 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4067021 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
