Adobe Experience Manager AD0-E134 Book

To design a workflow that collects data from the participant and then determines the reviewer/approver branch to proceed further, the developer should use theDynamic Participant Step. This workflow step allows for dynamic determination of participants based on the data collected or any other logic implemented in the workflow.

Here’s how to implement a Dynamic Participant Step in AEM:

Create the Workflow Model:

In AEM, navigate to Tools > Workflow > Models.

Create a new workflow model or edit an existing one.

Add Dynamic Participant Step:

Drag and drop the Dynamic Participant Step into your workflow model.

Configure the Dynamic Participant Step:

Click on the Dynamic Participant Step and configure it by specifying the participant chooser class. This class should implement the logic to determine the next participant.

@Component(service = ParticipantStepChooser.class, property = {

"service.description=Dynamic Participant Chooser"

})

public class CustomParticipantStepChooser implements ParticipantStepChooser {

@Override

public String getParticipant(WorkItem workItem, WorkflowSession workflowSession, MetaDataMap metaDataMap) {

// Custom logic to determine the participant based on workflow data

String reviewer = // logic to determine reviewer

return reviewer;

}

}

Implement Participant Chooser Logic:

The CustomParticipantStepChooser class should contain the logic to determine the next participant based on the workflow data. This can include reading workflow variables, making decisions based on conditions, or any other custom logic.

Deploy and Test:

Save the workflow model and test it by starting a new workflow instance. Ensure that the dynamic participant determination works as expected.

By using the Dynamic Participant Step, you can create flexible workflows that adapt to the data and context, ensuring that the appropriate participants are chosen dynamically.

References:

Adobe Experience Manager Workflow

AEM Dynamic Participant Step

The inability to run the Best Practice Analyzer (BPA) in AEM is most commonly due to the AEM Developer not having the necessary administrative rights. The Best Practice Analyzer is a tool that requires certain permissions to execute, typically administrative privileges.

Here’s a detailed explanation:

Administrator Rights Requirement: The Best Practice Analyzer tool needs access to various parts of the AEM system, including configuration settings and repository data, which require administrator-level permissions. Without these permissions, the tool cannot run properly.

Permissions Check: Verify that the AEM Developer has admin rights. This can be done by checking the user roles in the AEM User Management console. Ensure that the user is part of the "administrators" group or has equivalent privileges.

Running BPA: Once the correct permissions are in place, the developer can navigate to the Best Practice Analyzer tool in AEM and execute it. The BPA will then analyze the AEM instance for compliance with best practices.

Version Compatibility: Note that while this specific issue is related to permissions, it’s also important to ensure that the BPA tool version is compatible with the AEM version being used. In this case, the BPA supports AEM version 6.4 and above.

Steps to assign admin rights:

Log into AEM: As an existing admin, log into the AEM instance.

Navigate to User Management: Go to Tools > Security > Users.

Add User to Admin Group: Find the user and add them to the "administrators" group.

Save and Log Out: Save the changes and ask the user to log out and log back in to acquire the new permissions.

References:

Adobe Best Practice Analyzer Documentation

AEM User Management Documentation

These steps should resolve the issue and enable the AEM Developer to run the Best Practice Analyzer tool successfully.

The order of resolution for OSGi configurations at runtime in AEM is as follows:

Web Console Configuration:

Changes made through the OSGi Web Console take immediate effect and have the highest precedence. This is because these configurations are considered the most direct way to adjust OSGi settings at runtime.

References:OSGi Configuration in AEM

/apps Configuration:

Configurations in the /apps directory take precedence over those in the /libs directory. This allows custom configurations to override the default configurations provided by AEM.

References:AEM Project Structure

/libs Configuration:

Configurations in the /libs directory are the default configurations provided by AEM. They are overridden by any configurations in the /apps directory.

References:AEM Configuration

By understanding this order, developers can effectively manage and prioritize their OSGi configurations to ensure the desired behavior of their AEM instances.

The developer should add the defaultInjectionStrategy = DefaultInjectionStrategy property to the @Model Class annotation to fix the snippet. The defaultInjectionStrategy property defines how the Sling Model handles missing or null values for the injected fields. By default, the Sling Model uses the REQUIRED injection strategy, which means that all fields must have a non-null value or else an exception is thrown. By setting the defaultInjectionStrategy property to OPTIONAL, the Sling Model allows null values for the injected fields and does not throw an exception. This way, if the page field is null because the resource is not a page, the Sling Model can still work without errors.References: https://sling.apache.org/documentation/bundles/models.html https://sling.apache.org/documentation/bundles/models.html#optional-injection