A developer is using sling context-aware configuration trying to get the configuration resource using:
This works as intended in author and in publish when logged in lo publish as admin. However this gives a null when run as anonymous. Which method is going to fix the issue?
The issue arises because the anonymous user does not have the necessary read permissions for the /content directory. When using Sling context-aware configurations, access to the configuration resource is required. If the anonymous user lacks read permissions, the configuration cannot be retrieved, resulting in a null value.
To fix this issue, you need to grant read permissions to the anonymous user for the /content directory.
Steps to apply read permissions:
Access CRXDE Lite: Log into your AEM instance and navigate to CRXDE Lite (http://localhost:4502/crx/de).
Navigate to the /content Directory: In the CRXDE Lite interface, browse to the /content directory.
Set Permissions:
Right-click on the /content directory and select 'Permissions'.
Add the anonymous user (if not already present).
Grant read permissions to the anonymous user.
Save Changes: Apply the changes and ensure that they are saved correctly.
Test the Configuration: Log out of the AEM instance and test the context-aware configuration as an anonymous user to ensure that the configuration resource can now be retrieved.
By granting read permissions to the anonymous user for the /content directory, you allow access to the necessary configuration resources, resolving the issue.
A customer is having trouble with some search queries and provides the following information:
* The logs show the following warning occurs many time: WARN* Traversed 1000 nodes with filter Filter (query=select...)
* The client has more than 100,000 stored in their AEM instance
* The client uses a custom page property to help search for pages of a given type
What should the AEM Developer do to help resolve the client's issue?
The warning WARN* Traversed 1000 nodes with filter Filter (query=select...) indicates that the query is performing a traversal instead of using an index. This results in poor performance, especially when the client has a large number of nodes (e.g., more than 100,000).
To resolve this issue, you should create a custom Oak index for the custom page property. This ensures that the queries can leverage the index for efficient data retrieval.
Steps to create a custom Oak index:
Define the Oak Index:
Navigate to the /oak:index node in CRXDE Lite (http://localhost:4502/crx/de).
Create a new node of type oak:QueryIndexDefinition.
Configure the Index:
Set the properties of the new index node to define the indexing rules for the custom page property.
{
'jcr:primaryType': 'oak:QueryIndexDefinition',
'type': 'property',
'propertyNames': ['customPageProperty'],
'reindex': true,
'async': 'async'
}
Deploy and Reindex:
Save the changes and initiate a reindexing process.
Ensure that the reindex flag is set to true for the newly created index.
Validate the Index:
Use the Index Manager or the AEM Web Console to validate that the new index is enabled and functioning correctly.
By creating a custom Oak index for the custom page property, the queries will be optimized to use the index, significantly improving the search performance and resolving the client's issue.
Which practice should be used to push a code fix to make it into the current release candidate?
To push a code fix into the current release candidate, the best practice is to cherry-pick the fix commit into the release candidate branch. Cherry-picking allows you to apply specific changes from one branch to another, ensuring that only the necessary fixes are included without introducing unrelated changes.
Here's how to cherry-pick a commit:
Identify the Commit: Locate the commit hash of the fix you need to apply. This can be found in your version control system (e.g., Git).
Checkout the Release Candidate Branch:
git checkout release-candidate-branch
Cherry-pick the Commit:
git cherry-pick <commit-hash>
Resolve Conflicts (if any): If there are conflicts, resolve them manually and then continue the cherry-pick process:
git add <resolved-files>
git cherry-pick --continue
Test the Changes: Ensure that the changes are tested thoroughly in the release candidate environment to confirm the fix works as expected.
Push the Changes:
git push origin release-candidate-branch
Cherry-picking ensures that only the required changes are applied to the release candidate, maintaining the stability and integrity of the codebase.
What two types of testing are available OOB in AEM Cloud Manager Pipeline? (Select Two.)
A new component called Page Headline needs to be implemented. The only difference to the title component delivered by Adobe's WCM core components is that the text needs to be taken from the current page title instead of jcr.title.
How should a developer implement this request?
A)
1. Create custom component
2. Implement Sling Modal as follows
B)
1. Create proxy component from the core title component
2. Implement sling Model as follows
C)
1. Create proxy component from the core title component
2. Implement Sling Model as follows
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.
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