Adobe AD0-E134 - Adobe Experience Manager Developer Exam

An AEM Developer should add a front-end dependency in the package.json file. The package.json file is a standard configuration file for managing dependencies in JavaScript projects, including those using npm or Yarn as package managers.

Here’s how to add a front-end dependency:

Open the package.json File: This file is typically located at the root of your project.

Add the Dependency: Add the required front-end dependency under the dependencies or devDependencies section. For example, to add lodash as a dependency:

{

"name": "my-aem-project",

"version": "1.0.0",

"dependencies": {

"lodash": "^4.17.21"

}

}

Install the Dependency: Run the following command to install the new dependency:

npm install

Verify Installation: Ensure that the dependency has been added to the node_modules directory and is listed in the package-lock.json file.

The package.json file is the central place to manage all front-end dependencies, making it easy to track, update, and share dependencies across the development team.

References:

npm Documentation

Managing Dependencies in AEM Projects

These steps ensure that the front-end dependencies are managed efficiently and consistently within the AEM project.

The com.day.cq.workflow.exec.ParticipantStepChooser interface is intended for implementations that will define the participant dynamically. This interface replaces the deprecated com.day.cq.workflow.exec.ParticipantChooser interface. The method getDynamicParticipant returns the dynamically resolved Principal id based on the work item, workflow session and metadata map parameters.References:https://developer.adobe.com/experience-manager/reference-materials/cloud-service/javadoc/com/day/cq/workflow/exec/ParticipantStepChooser.html

To implement a new component called "Page Headline" which takes the text from the current page title instead of jcr:title, you should create a proxy component from the core title component and implement a Sling Model accordingly. Option C demonstrates the correct approach to achieve this functionality.

Here is a detailed explanation of Option C:

Create Proxy Component:

Create a new component in your project that will act as a proxy to the core title component. This involves creating a new component node in the repository that inherits from the core title component.

Example path: /apps/myproject/components/pageHeadline with sling:resourceSuperType set to core/wcm/components/title/v2/title.

Implement Sling Model:

Implement a Sling Model that adapts from SlingHttpServletRequest and Title.class, ensuring it overrides the text fetching logic to retrieve the title from the current page's title.

The model will use @ScriptVariable to inject the current page and @Self to access the core title component's logic.

@Model(adaptables = SlingHttpServletRequest.class, adapters = Title.class, resourceType = "myproject/components/pageHeadline")

public class PageHeadline implements Title {

@ScriptVariable

private Page currentPage;

@Self @Via(type = ResourceSuperType.class)

private Title title;

@Override

public String getText() {

return currentPage.getTitle();

}

@Override

public String getType() {

return title.getType();

}

}

@Model Annotation: Specifies that this class is a Sling Model and adapts from SlingHttpServletRequest. It is also an adapter for Title.class and applies to the myproject/components/pageHeadline resource type.

@ScriptVariable: Injects the current Page object, which allows access to the current page's properties.

@Self @Via(type = ResourceSuperType.class): Injects the core title component, allowing the reuse of existing logic.

getText() Method: Overrides the getText() method to return the title from the current page instead of the jcr:title.

getType() Method: Delegates to the core title component's getType() method to maintain existing functionality.

This approach leverages the power of Sling Models and the core components to extend functionality while keeping the implementation clean and maintainable.

References:

Adobe Experience Manager - Core Components

Sling Models Documentation

AEM Assets HTTP API is a RESTful API that allows access to content fragments in JSON format without any customization. The API supports CRUD operations on content fragments and their variations, as well as querying and searching for content fragments based on metadata or full-text search.References:https://experienceleague.adobe.com/docs/experience-manager-65/assets/extending/assets-api-content-fragments.html?lang=en

In AEM as a Cloud Service, one notable change that developers should be aware of is the removal of replication agents. Instead of the traditional replication agents used in on-premise or AEM Managed Services environments, AEM as a Cloud Service uses a different mechanism to distribute content.

Key points about this change:

Content Distribution:

In AEM as a Cloud Service, content distribution is managed through automated processes that do not rely on manually configured replication agents.

The cloud infrastructure handles the replication and distribution of content to publish instances.

Publishing Model:

The publishing process is designed to be more seamless and integrated within the cloud environment, leveraging the underlying cloud services for scalability and efficiency.

Developers and administrators do not need to manually manage replication agents, simplifying the content deployment process.

Benefits:

This change reduces the complexity of content distribution in AEM projects.

It ensures higher reliability and performance by leveraging the capabilities of the cloud infrastructure.

References:

AEM as a Cloud Service Documentation

Content Distribution in AEM as a Cloud Service

By understanding this change, developers can effectively manage content distribution in AEM as a Cloud Service and leverage the new mechanisms provided by the cloud platform.

AEM SPA integration provides various design models for different levels of authoring capabilities and developer control. In the design model where AEM is used as a headless CMS without using the SPA Editor SDK framework, the developer has full control over the app and can use any SPA framework or library. However, this also means that the content author cannot edit the app using AEM’s content authoring experience, the SPA is not compatible with the template editor, and the developer cannot enable authoring in restricted areas of the app.References:https://experienceleague.adobe.com/docs/experience-manager-learn/spa-editor-overview/spa-overview.html?lang=en#design-models

To ensure that text pasted inside the Text component in AEM is stripped of all styling and formatting, you need to override the RTE (Rich Text Editor) plugin implementation and change the default paste behavior. The correct option to achieve this is defaultPasteMode=plaintext.

Steps to configure the RTE plugin for plain text pasting:

Locate the RTE Configuration: Find the existing configuration for the RTE or create a new one in the /apps directory of your AEM project.

Modify the Plugin Configuration: Add or update the configuration to include the defaultPasteMode parameter. The configuration might look something like this:

{

"jcr:primaryType": "nt:unstructured",

"features": "[text]",

"defaultPasteMode": "plaintext"

}

Apply the Configuration: Ensure that this configuration is applied to the Text component. This typically involves updating the component dialog or design dialog to reference the updated RTE configuration.

Test the Configuration: In the AEM author instance, open the page with the Text component and paste text using CTRL+V. The pasted text should now be stripped of all styling and formatting, adhering to the plaintext mode.

By setting defaultPasteMode to plaintext, you ensure that the RTE only accepts plain text input, removing any formatting that might come from external sources.

References:

AEM Rich Text Editor (RTE) Documentation

Configuring the Rich Text Editor in AEM

The Apache Sling Logging Logger Configuration and Apache Sling Logging Writer Configuration are the OSGi configurations that the developer should use to create a Logger and Writer pair for the company’s application logging. The Logger Configuration defines the log level and the log file name for a given logger name or category. The Writer Configuration defines the file size, number of files, and file location for a given log file name. References:https://experienceleague.adobe.com/docs/experience-manager-65/deploying/configuring/configure-logging.html?lang=en#configuring-log-files

The /glob attribute is mandatory for all filter rules in the dispatcher configuration. It specifies a pattern that is matched against the incoming request URL. If the pattern matches, the rule is applied. The /glob attribute can use wildcards (*) and placeholders ($1, $2, etc.) to match parts of the URL. References:https://experienceleague.adobe.com/docs/experience-manager-dispatcher/using/configuring/dispatcher-configuration.html?lang=en#filter-rules

The correct tool to use for looking up Adobe Identity Management System (IMS) users by email and returning their IMS IDs is the IMS Lookup Tool. This tool is specifically designed to interact with the Adobe Identity Management System (IMS) and provides functionality to search for user details using various criteria such as email addresses.

Steps to use the IMS Lookup Tool:

Access the IMS Lookup Tool: Navigate to the IMS Lookup Tool interface. This tool is typically available through the Adobe Admin Console or as a part of Adobe's suite of administrative tools.

Authenticate: Ensure that you have the necessary permissions to use the tool. Authentication may be required, often through your Adobe ID and associated admin privileges.

Search by Email: Enter the email address of the user you want to look up in the search field.

Retrieve IMS ID: The tool will return the IMS ID associated with the provided email address.

This tool is essential for managing user identities and integrating with various Adobe services that rely on IMS for authentication and authorization.

References:

Adobe IMS Documentation

Adobe Admin Console