Questions asked by HaraldWeber

Ivy 3.9 User Details loading very slow

HaraldWeber — Tue, 08 Aug 2017 09:59:55 -0400

On a customers installation the User Details in the workflow ui are loading very slow. About 50 seconds.

URL: http://localhost:8081/ivy/wf/Webapp/index.html?pageId=admin%2Fuserform&user=GFKLK

The AAA System is set to Active Directory. After a click on user details i wait 50 seconds and then the following line appears in the server log.

LogId	119510222
SessionId	199
LogLevel	5
LogTimestamp	2017-08-04 10:07:30.080
SequenceNumber	87
LogMessage	Open directory context to naming and directory server 'ldap://SOME_SERVER_ADDRESS'
LogDetailMessage	-> client: 0:0:0:0:0:0:0:1 SOME_SERVER_ADDRESS -> thread: http-8081-Processor5 Class: JndiAuthenticationAndAuthorization Method: getJndiContext

It seems that the server tries to get some information from the ldap server and runs in a timeout. After that the user details page is shown. Confusing is the part "client: 0:0:0:0:0:0:0:1". Its an ipv6 address. Does the server try to fetch something via ipv6?

I disabled ipv6 in Windows but that didn't changed anything.

Have you seen a similar case? What can I do to investigate?

Server Info: Detail Version 3.9.52.5 (Version 3.9 Build 52 Patch 5) Build Date 21.11.2011

Threads and the Ivy Object

HaraldWeber — Mon, 02 Mar 2015 17:55:36 -0500

I want to execute some tasks in the background. I used java threads but I get this exception.

ch.ivyteam.ivy.environment.EnvironmentNotAvailableException: Access to ivy environment outside a process request thread is not possible.

Is there an ivy thread i can use or is it simply not possible?

End a suspended Task

HaraldWeber — Mon, 12 Jan 2015 14:45:47 -0500

How can I end a suspended task? In IWorkflowSession there is a mehtod:

public abstract void endWorkingTask(ITask paramITask, String paramString1, String paramString2, String paramString3, boolean paramBoolean)
    throws PersistencyException;

But its undocumented.

Or is it better to call ITask.destroy()?

Permission Denied: needs Permission SYSTEM but the Session is SYSTEM

HaraldWeber — Thu, 23 Oct 2014 10:52:10 -0400

I have a strange Exception here:

Session 0 (SYSTEM) is not allowed to call method public ch.ivyteam.ivy.workflow.IProcessData ch.ivyteam.ivy.workflow.internal.Task.getInternalProcessData().
The session does not fulfill the permission rule SESSION IS SYSTEM

This says the Session has the permission SYSTEM but the call was denied because the Session has not the permission SYSTEM.

Code is:

final ITask task = Ivy.wfTask();
IProcessData ipd = Ivy.session().getSecurityContext()
    .executeAsSystemUser(new Callable<iprocessdata>() {
    @Override
    public IProcessData call() throws Exception {

        return task.getInternalProcessData();
    }

});

Save Task data while in task

HaraldWeber — Tue, 21 Oct 2014 10:34:51 -0400

How can I save data while I'm in a Task Switch.

I'm resuming a Task and want to save data after submitting each form/page. If the user session expires or the user cancels the task the data should load when the user resumes the task the next time.

How to get the users tasklist

HaraldWeber — Thu, 18 Sep 2014 14:12:03 -0400

How can i get the task list of the current logged in user without the permission TaskReadAll.

All methods i tried call getTaskQueryExecutor which needs the permission TaskReadAll.

I think the User should be allowed to read it's own tasks.

Why can I only have one field of the type List in my entity class?

HaraldWeber — Thu, 14 Aug 2014 11:32:10 -0400

When I create a new entity class and want to have more than one List in it, Xpert.ivy says: "If an entity class has more than one collection you have to use 'Set' instead of 'List' as type."

I think the JEE Persistence API does not have this limitation.

Use different primefaces themes for projects

HaraldWeber — Wed, 06 Aug 2014 12:14:12 -0400

In the help topics its written that primefaces themes has to be installed in the servers/designers webapps directory. With this setting themes are configured globally for all projects. What if i want to apply different themes for different projects? Do i have to start ivy server instances for each theme?

The primefaces documentation says: "...this approach requires you to create a jar file and add it to the classpath of your application"

So the designated way to apply themes, is at the project level not the server level.

How can I apply a theme only for one project?

Persistence Api - Many to Many Relationship

HaraldWeber — Wed, 02 Apr 2014 14:12:20 -0400

Is it possible to declare a many to many relationship in the Entity Class Editor?

Persistence Api - Foreign Key is always null

HaraldWeber — Wed, 26 Mar 2014 10:25:39 -0400

currently i'm trying to use the persistence api. I stuck at inserting a one to many relationship. The problem is that the foreign key is always null.

I have two entity classes. User and Option.

User

Name	Type	DB Field	Persistent	Length	Properties	Association	Cascade	Mapped by
id	Integer	id	yes		id, generated
name	String	name	yes	255
opts	Listy<Option>		yes			ONE_TO_MANY	persist, merge	user_fk

Option

Name	Type	DB Field	Persistent	Length	Properties	Association	Cascade
id	Integer	id	yes		id, generated
option	String	opt_value	yes	255
user_fk	User	user_fk	yes		not nullable	MANY_TO_ONE	persist, merge

The Option Objects are created from strings by a converter from a p:selectManyCheckbox. The field user_fk is not set manually in this converter because i don't have a reference to the User object in the converter.

Xpert.ivy creates an entity class for User and adds a "setOpts(List)" method for me.

public void setOpts(java.util.List< persistenceTest.Option > _opts) { opts = _opts; }

If there where a "addOpt(Option) method I could add the reference to User myself.

public void addOpt(persistenceTest.Option __opts) { _opts.setUser_fk(this); optsList.add(_opts); }

Am I thinking wrong or is it not possible to automate the creation of foreign keys?

Best Regards Harald