Is it possible to deserialize Imixs json objects from a Spring Boot RestClient?

[frednforester]

Most of the developers here are spring boot. In order to de-serialize the JSON responses from the REST API the Imixs jars need to be included in the POM.

just wondering if this is possible before we all start the Jakarta EE classes?

Thanks

[rsoika]

Hi @frednforester
if you are using the Imixs Rest-API you are total independent from any platform or program language. You can use JavaScript, Phyton, .Net or even curl.
But as you are using Spring you are already in the Java world. And even Spring didn't reinvent the wheel. It is based on Jakarta-EE Servlet API. So the easiest way to interact with the Imixs-Workflow instance is to use the Imixs-Melman project . Take a look at the project description. It should be super easy to use this in your SpringBoot app. No Jakarta EE Runtime is needed! If you have problems just let me know.

[frednforester]

ok got it working. a few questions on the create work item.

workitem.replaceItemValue(WorkflowKernel.PROCESSID,1000); // Deprecated ?
workitem.replaceItemValue(WorkflowKernel.ACTIVITYID,10); // not found. I assumed TASKID?

Spring Boot 3.2.5

org.imixs.workflow
imixs-melman
2.1.0


org.imixs.workflow
imixs-workflow-core
6.1.0


org.glassfish.jersey.core
jersey-client
3.1.5

       <dependency>
        <groupId>org.glassfish.jersey.inject</groupId>
        <artifactId>jersey-hk2</artifactId>
        <version>3.1.10</version>
    </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.media</groupId>
            <artifactId>jersey-media-jaxb</artifactId>
            <version>3.1.10</version>
        </dependency>

Thanks!

[rsoika]

Yes - docu was outdated. This is like your client code should look like:

ItemCollection workitem=new ItemCollection();
workitem.model("1.0.0").task(1000).event(10);
workitem.replaceItemValue("type", "workitem");
// add some data..
workitem.replaceItemValue("_subject","This is some test data....");
// process workitem
workitem=workflowCLient.processWorkitem(workitem);
String unqiueID=workitem.getUniqueID();

[frednforester]

I was able to create and read back a workitem.

how would I attach the form data?

Thanks again!

[rsoika]

This depends on the kind of your formData. I guess this is a kind of a List of key/value pairs? Or are you receiving the data as a Java POJO?
In any case you validate and set the required params with

workitem.replaceItemValue(myItemName, myItemValue);

The value can be a String, Double, Integer, Date, Calendar, or a List of these types. In general you can store any serializable java object. So you can also store a complete object class if it is implementing the Serializable interface.

But it is recommended to use key/value pairs as this supports the lucene index directly.

[frednforester]

Sorry I should have explained better. All the below are working in that after the workitem is created I can pull it up in admin and see the data. compared to the one I created manually they look the same. the exception is manually created one opens the form in the PM the other does not. I get the message that I can create a form. like it doesn't know the data is there.

    workitem.replaceItemValue("budget",new BigDecimal(3000));
    workitem.replaceItemValue("city","My City");
    workitem.replaceItemValue("country","USA");
    workitem.replaceItemValue("details","Some details");

[rsoika]

Hm, I do not understand the problem. Can you provide more example code or possible a java exception stack trace indicating the problem?
Is your problem that a workitem created by the melman client does not open in the Process-Manager Web View?

[frednforester]

Did some renaming of the model names and the word (Tt)icket. now all playing nicely together :)

excellent learning experience!!