topic Re: Activiti REST call for list of tasks in Alfresco Forum

Activiti REST call for list of tasks

signjoy — Fri, 16 Jun 2017 18:25:23 GMT

Hello all,In one requirement we need to fetch data from Alfresco Activiti. We are using RESTTemplate call that returns us list of tasks for the particular user. The only problem is, the response is in JSON format and not showing the type of the corresponding JAVA class. Can anyone tell me that on wh

Re: Activiti REST call for list of tasks

cjose — Tue, 20 Jun 2017 11:51:10 GMT

Hi,

I'm trying to understand your use case.

Are you trying to the Activiti APIs from a external java application and trying to parse the rest response? JSON is the API response standard in Activiti. If you need to convert the JSON string to a POJO, there are plenty of libraries out there which can help. eg: GitHub - FasterXML/jackson: Main Portal page for Jackson project

Hope this helps.

Ciju

Re: Activiti REST call for list of tasks

signjoy — Tue, 20 Jun 2017 15:30:02 GMT

Hey thanks for your reply.

Yes, I am calling Activiti from my java app and getting the JSON. I have Jackson in my project. But I am not sure which POJO I need to create out of the JSON response form activiti.

For example, the above JSON response, I am able to create ResultListDataRepresentation POJO. It also shows the data size 1. I am not sure to which class I need to cast this list of AbstractRepresentation. But when I print the data as string on console, it prints the whole JSON with data.

joy

Re: Activiti REST call for list of tasks

cjose — Wed, 21 Jun 2017 20:27:51 GMT

Understood, that is because of the way you casting it.

The "data" field in ResultListDataRepresentation is of type List<? extends AbstractRepresentation>. Hence you get this error as a direct casting to TaskRepresentation will not work.

I have worked out a sample using Jackson lib and see if that helps.

Ciju

Re: Activiti REST call for list of tasks

paiyyavj13 — Thu, 25 Oct 2018 14:08:17 GMT

Thank you- This worked like a charm!