Category: Development

AEM Sling Model Injectors Annotations Reference Guide

The Apache Sling Model enables injector specific annotations which aggregate the standard annotations for each of the available injector, which are: Script Bindings, Value Map, Resource Path, Child Resources, Request Attributes, OSGI Services, Self, and the Sling Object. Sure we can invoke injectors by the @inject, followed by the @source annotation (with an injector name) […]

JUnit 4: AEM Sling Servlet Unit Test Example Using AEM Mocks, Servlet by Resource Type

This article will demonstrate how to write AEM Unit tests for @SlingServletResourceTypes (OSGi DS 1.4 (R7) component property type annotations) using the Junit4 testing framework. With developers being more visual, the source code is posted below. Technologies here used are: AEM project archetype 19 (link) Mockito 2.27.0 (link) AEM Mocks JUnit 4 2.7.2 (link) This […]

Registering @SlingServletPaths Component Property Type

You are probably looking for the @SlingServletPaths, OSGi DS 1.4 (R7) component property type annotations for Sling Servlets, code/unit test examples and was not successful. Apache recommends not use the @SlingServletPaths annotation, Sling Servlet register by a path. Rather to use the @SlingServletResourceTypes component type. Given the drawbacks in the caveats below, it is strongly […]

Sugar Coat Registered AEM Servlet Scripts and Paths Endpoint

In AEM we tend to write Sling Servlet OSGI Services to expose JSON data using the various service reference properties such as “sling.servlet.paths”, “sling.servlet.resourceTypes”, “sling.servlet.selectors”, and “sling.servlet.extensions”. Example 1: DirectoriesServlet.Java doGet Servlet Implementation (html extension): This is an example how a servlet in AEM to retrieve the directories JSON data. 1234567891011121314151617// example for /content/mysite.directories.html @SlingServlet( […]

What is a Servlet in AEM?

What is a Servlet? A Servlet is a class used to extend capabilities of servers that host applications accessed by means of a request-response programming model; we know most the HTTP protocol. In AEM, Servlets are typically registered as an OSGI service. The reference of the “sling.servlet.paths” or “sling.servlet.resourceTypes” must be set, or the Servlet […]

Improve Performance of AEM Components During Development Phase

Web performance is how quick web pages are successfully downloaded and viewable on the visitor’s browser. When we say “Web Performance Optimization”, this means that we are optimising or increasing web performance. Quicker download speeds of websites, in general, have shown in user contentment, retention, and loyalty. Especially with AEM enterprise websites, our motive is […]

Scenario: Building AEM Components with 3rd Party Integrations in a High Performance and Scalable Way

we are assigned to build a hospital search component in a very high traffic website. This hospital search component allows users to search for available hospital private rooms across the United States; there are approximately 200,000 hospital private rooms across the US.  The hospital search component, presented in the view, simply has an input field […]

AEM Project, WCMUsePojo “aQute.bnd.annotation.ConsumerType not found” (fix)

On rare occasions, when developing a Java class that extends WCMUsePojo class, you will get the error of “class file for aQute.bnd.annotation.ConsumerType not found“. This problem can be easily solved by adding the dependency to your parent-pom.xml and core-pom.xml as shown below: 123456789101112131415//parent-pom.xml <!– –> <dependency>     <groupId>biz.aQute.bnd</groupId>     <artifactId>bndlib</artifactId>     […]

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