Assigning task to users group based on condition in enterprise Activiti

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Active Member II

Assigning task to users group based on condition in enterprise Activiti

I have tree users group and want to assign task to the users group based on complexity value.These are my group users:

1-expert_users

2-senior_users

3-junior_users

1-If complexity value is "High" then the task must be assigned to expert_users group

2-If complexity value is "Medium" then the task must be assigned to senior_users group

3-If complexity value is "Low" then the task must be assigned to junior_users group

I have created task listener as follow:

And I have used expression  as follow:

I have set an variable as global scope as follow:

After done above implementation, I am getting below error:

Please let me know what I am doing wrong here.

Thanks

4 Replies
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Active Member II

Re: Assigning task to users group based on condition in enterprise Activiti

After I have modified task listener implementation, the error has gone but dynamic group assignment still not working.

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Active Member II

Re: Assigning task to users group based on condition in enterprise Activiti

This is done by using this following implementation:

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Member II

Re: Assigning task to users group based on condition in enterprise Activiti

The GroupService is part of which library?

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Senior Member

Re: Assigning task to users group based on condition in enterprise Activiti

Hi, 

Please find the attached app.

You can write your task listener as like below, hope it solves your problem.

package com.activiti.extension.bean;

import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.DelegateTask;
import org.activiti.engine.delegate.TaskListener;
import org.activiti.engine.impl.util.json.JSONArray;
import org.activiti.engine.impl.util.json.JSONObject;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;

import sun.misc.BASE64Encoder;

public class test implements TaskListener {
RestTemplate restTemplate = new RestTemplate();
String url = "http://localhost:8082/activiti-app";

@Override
public void notify(DelegateTask task) {
// TODO Auto-generated method stub
DelegateExecution execution = task.getExecution();
String cmplx=(String) execution.getVariable("complexity");
System.out.println("complexity="+cmplx);
String groupName="";
String groupId="";
HttpEntity<String> requestEntity = new HttpEntity<String>("", getHeadersForAPS());
if(cmplx.toLowerCase().equals("high")) {
groupName="high";
ResponseEntity<String> groupData = restTemplate.exchange(url+"/api/enterprise/groups?filter="+groupName, HttpMethod.GET, requestEntity, String.class);
System.out.println("groupData="+groupData.getBody());
JSONObject getSubGroupDataJson = new JSONObject(groupData.getBody());
JSONArray dataArray= getSubGroupDataJson.getJSONArray("data");
groupId = dataArray.getJSONObject(0).getString("id");


}
else if(cmplx.toLowerCase().equals("medium")) {
groupName="medium";
ResponseEntity<String> groupData = restTemplate.exchange(url+"/api/enterprise/groups?filter="+groupName, HttpMethod.GET, requestEntity, String.class);
System.out.println("groupData="+groupData.getBody());
JSONObject getSubGroupDataJson = new JSONObject(groupData.getBody());
JSONArray dataArray= getSubGroupDataJson.getJSONArray("data");
groupId = dataArray.getJSONObject(0).getString("id");
}
else {
groupName="low";
ResponseEntity<String> groupData = restTemplate.exchange(url+"/api/enterprise/groups?filter="+groupName, HttpMethod.GET, requestEntity, String.class);
System.out.println("groupData="+groupData.getBody());
JSONObject getSubGroupDataJson = new JSONObject(groupData.getBody());
JSONArray dataArray= getSubGroupDataJson.getJSONArray("data");
groupId = dataArray.getJSONObject(0).getString("id");
}
System.out.println("groupId="+groupId);
task.addCandidateGroup(groupId);
System.out.println("ggg="+task.getCandidates());
}

public MultiValueMap<String, String> getHeadersForAPS()
{
String alfrescoUserName = "admin@app.activiti.com";
String alfrescoPassword = "admin";
String authString = alfrescoUserName + ":" + alfrescoPassword;
String authStringEnc = new BASE64Encoder().encode(authString.getBytes());
MultiValueMap<String, String> headers = new LinkedMultiValueMap<String, String>();
headers.add("Accept", "application/json");
headers.add("Content-Type", MediaType.APPLICATION_JSON.toString());
headers.add("Authorization", "Basic " + authStringEnc);
return headers;
}

}

Regards

Amruta Wandakar