Extends EnumFormType

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marcantoine

Hi,

I wan't to create a new custom form type.
I need a list a values (list of companies available on a database).
For that I want to create an type based on EnumFormType. I can create a new type in may form and it will appear correctly loaded (not via activiti-explorer but via activiti-rest - I think it's a library dependency problem for that)

But after looking the bpmn20.xml, the parameter will not have values. Is it possible to access to them using the Rest API ?

I have wrote this code:

import java.util.HashMap;
import java.util.Map;

import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.impl.form.EnumFormType;

public class C4MCompaniesFormType extends EnumFormType {
  
  static Map<String, String> getCompagnies(){
     Map<String, String> companies;
     companies = new HashMap<String, String>();
     companies.put("companyId1", "Company name 1");
     companies.put("companyId2", "Company Name 2");
     return companies;
  }
  
  public C4MCompaniesFormType() {
     super(getCompagnies());
  }
  
  public C4MCompaniesFormType(Map<String, String> companies) {
   super(companies);
  }
  
  public String getName() {
    return "companies";
  }
 
  @Override
  public Object getInformation(String key) {
     System.out.println( "getInformation : " + key );
    if (key.equals("values")) {
      return getCompagnies();
    }
    return null;
  }
  
  @Override
  public Object convertFormValueToModelValue(String propertyValue) {
   System.out.println( "convertFormValueToModelValue : " + propertyValue );
   validateValue(propertyValue);
   return propertyValue;
  }
 
  @Override
  public String convertModelValueToFormValue(Object modelValue) {
   System.out.println( "convertModelValueToFormValue : " + modelValue );
   if(modelValue != null) {
     if(!(modelValue instanceof String)) {
       throw new ActivitiIllegalArgumentException("Model value should be a String");
     }
     validateValue((String) modelValue);
   }
   return (String) modelValue;
  }
  
  protected void validateValue(String company) {
   Map<String, String> companies = getCompagnies();
   
   if(company != null) {
     if(companies != null && !companies.containsKey(company)) {
       throw new ActivitiIllegalArgumentException("Invalid value for companies form property: " + company);
     }
   }
  }
}
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Thanks,

jbarrez

Arter properties are submitted, they will be stored as regular process variables in your process instance. You can access them via the rest api as regular variables from that point on.