Cannot find NodeService instance trying to reproduce Alfresco Wiki examples

[ardamose123]

I was following the instructions in "Custom Actions" (http://wiki.alfresco.com/wiki/Custom_Actions). However, when I get to the

executeImpl(…)‍

method, Java cannot find the

this.nodeService‍

object.

public void executeImpl(Action action, NodeRef actionedUponNodeRef)
{
   if (this.nodeService.exists(actionedUponNodeRef) == true) // <– nodeService undefined here
   {
      QName aspectQName = (QName)action.getParameterValue(PARAM_ASPECT_NAME);
      this.nodeService.addAspect(actionedUponNodeRef, aspectQName, null); // <– nodeService undefined here
   }
}
‍‍‍‍‍‍‍‍‍‍

I reviewed the source code of

ActionExecuterAbstractBase‍

class, and found the

baseNodeService‍

field to be

private‍

, not

public‍

or even

protected‍

. It only has one setter and no getter. Since this class is part of Alfresco's core source code, I'd prefer not to mess up with it.

I'm currently using Alfresco 4.2.c SDK. Also, I'm working on a copy of the "SDK Basic AMP" project in the

samples‍

folder of said SDK. Project dependencies: JRE 6 and "SDK Alfresco Embedded" project.

Is there a way to make the code work without changing

ActionExecuterAbstractBase‍

code? Is there a workaround?

Thanks in advance!

[scouil]

Hi Ardamose,

Actually you'll need a bit of spring background to understand it.
Your class, to be picked up by Alfresco, will need to be declared in a config file via a been. It will be something like:

<bean id="add-aspect" class="org.alfresco.repo.action.executer.AddAspectActionExecuter" parent="action-executer"></bean>‍

With this bean, you can inject other beans that will be available in your class. In our case: the nodeService

<bean id="add-aspect" class="org.alfresco.repo.action.executer.AddAspectActionExecuter" parent="action-executer">
    <property name="nodeService">
        <ref bean="nodeService" />
    </property>
</bean>
‍‍‍‍‍‍‍

And for spring to be able to inject it, you'll need the appropriate setter in jour java code.
So you'll want to add this at the begining of your java class:

private NodeService nodeService;
public void setNodeService(NodeService nodeService)
    {
        this.nodeService = nodeService;
    }
‍‍‍‍‍‍‍

Then you should be able to access your

this.nodeService‍

[ardamose123]

Just as you pointed out, I was missing the Spring beans configuration. Many thanks!