Null nodeRef when running action

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ardamose123

I've been developing some custom action proof of concepts. I've got to the point where I can implement an action, configure its bean, update the share-config-custom.xml file and make the action appear and show a form to collect input in Alfresco Share.

The action just returns (some day) the Levenshtein distance between two documents, with no validations about them being plain text files. However, when I run this action, I come across a problem: in my implementation of

executeImpl(Action, NodeRef)‍

method, the NodeRef is null, when it's supposed to be an actual NodeRef to the node being acted upon.

Can someone tell me if this is a mistake on my side or Alfresco's? I'm deploying the extension as a JAR. File contents follow.

<em>FormActionExecuter.java</em> (without Levenshtein distance code)

public class FormActionExecuter extends ActionExecuterAbstractBase {
   private ContentService contentService;
   private NodeService nodeService;
   
   public static final String PARAM_OTHER_DOC = "other-doc";
   
   public void setContentService(ContentService contentService) {
      this.contentService = contentService;
   }
   
   public void setNodeService(NodeService nodeService) {
      this.nodeService = nodeService;
   }

   @Override
   protected void addParameterDefinitions(List<ParameterDefinition> paramList) {
      paramList.add(new ParameterDefinitionImpl(PARAM_OTHER_DOC, DataTypeDefinition.NODE_REF, true, getParamDisplayLabel(PARAM_OTHER_DOC)));
   }

   @Override
   protected void executeImpl(Action action, NodeRef actionedUponNodeRef) {
      if (!nodeService.exists(actionedUponNodeRef)) // <– IllegalArgumentException HERE
         return;
      
      NodeRef other = (NodeRef) action.getParameterValue(PARAM_OTHER_DOC);
      
      String content1 = contentService.getReader(actionedUponNodeRef, ContentModel.PROP_CONTENT).getContentString();
      String content2 = contentService.getReader(other, ContentModel.PROP_CONTENT).getContentString();
      
      action.setParameterValue(PARAM_RESULT, Integer.valueOf(computeLevenshteinDistance(content1, content2)));
   }
}
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<em>example-action-context.xml</em>

<beans>
   <bean id="org-form-bean" class="org.example.FormActionExecuter" parent="action-executer">
      <property name="contentService">
         <ref bean="ContentService" />
      </property>
      <property name="nodeService">
         <ref bean="NodeService" />
      </property>
   </bean>
</beans>
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<em>share-config-custom.xml</em>

<alfresco-config>
   <config evaluator="string-compare" condition="org-form-bean">
      <forms>
         <form>
            <field-visibility>
               <show id="other-doc" />
            </field-visibility>
            <appearance>
               <field id="other-doc" label="Document to be compared"/>
            </appearance>
         </form>
      </forms>
   </config>
   
   <config evaluator="string-compare" condition="DocLibActions">
      <actions>
         <action id="org-form" type="javascript" label="Test form">
            <param name="function">onActionFormDialog</param>
            <param name="itemKind">action</param>
            <param name="itemId">org-form-bean</param>
            <param name="mode">edit</param>
            <param name="successMessage">Works!</param>
            <param name="failureMessage">Fail…</param>
         </action>
      </actions>
      
      <actionGroups>
         <actionGroup id="folder-browse">
            <action index="102" id="org-form" />
         </actionGroup>
         <actionGroup id="document-browse">
            <action index="102" id="org-form" />
         </actionGroup>         
      </actionGroups>
   </config>
</alfresco-config>
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mluraschi

Hi, I ran into this post because I have the same exact problem.

Last week I created a UI action with no parameters and in share-config-custom its parameter is

<param name="function">onActionSimpleRepoAction</param>‍

. It works, I am able to use the

actionedUponNodeRef‍

inside the

executeImpl(Action, NodeRef)‍

method.

Yesterday, instead, I created an action with parameters and this time I used

<param name="function">onActionFormDialog</param>‍

. The form shows up, the parameters are passed correctly, but

actionedUponNodeRef‍

is

null‍

in

executeImpl(Action, NodeRef)‍

.

Any ideas? suggestions? I am struggling to find any informations about it.

Thanks