Tutorials & How-Tos. 46 Line Blog · Getting Resources and Properties in Sling · How to Manage Jobs in Sling · Installing and Upgrading. Apache Sling – The Fun is Back. ▫ Web framework. ▫ Java Content Repository ( JCR). ▫ ROA / REST. ▫ Scripting Inside. ▫ OSGi. ▫ Apache Open Source top level. Apache Sling is an open source, REST-based web framework, that makes it easy to build content-oriented applications (e.g., websites and.

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Apache Software Foundation Member and Director Apache. Sling. Applications layer for JCR repositories. «any» scripting language script =. Continuous Delivery of Apache Sling Applications ii. Abstract built on the Apache Sling framework. It be okay to require a manual. APACHE SLING & FRIENDS TECH MEETUP. BERLIN APACHE SLING: BASIC CONCEPTS .. another file type (PDF, PNG, JSON etc.).

Title: The title that is assigned to the template.

Description: The description that is assigned to the template. Resource Type: The component's path that is assigned to the template and copied to implementing pages. Ranking: The order ascending in which this template will appear in relation to other templates. Setting this value to 1 ensures that the template appears first in the list.

Add a path to Allowed Paths. Click Next for Allowed Parents.

Setup the Application

Select OK on Allowed Children. Create a render component that uses the template Components are re-usable modules that implement specific application logic to render the content of your web site.

You can think of a component as a collection of scripts for example, JSPs, Java servlets, and so on that completely realize a specific function. In order to realize this functionality, it is your responsibility as a Experience Manager developer to create scripts that perform specific functionality. For more information about components, see Components. By default, a component has at least one default script, identical to the name of the component.

To create a render component, perform these tasks: 1.

Enter the following information into the Create Component dialog box: Label: The name of the component to create. Title: The title that is assigned to the component.

In previous versions of AEM, this was not required. Open the templateSling. Enter the following JSP code. Maven manages required JAR files that a Java project needs in its class path. Assign the Maven install location to this environment variable. Next, copy the Maven configuration file named settings. You have to configure your settings. Default files created by the Maven archetype plugin To create an archetype project, perform these steps: 1.

When prompted for additional information, specify Y.

Apache sling tutorial pdf jobs

Change the command prompt to the generated project. Run the following Maven command: mvn eclipse:eclipse After you run this command, you can import the project into Eclipse as discussed in the next section. You'll need to do that before this goal will work and the content-package-maven-plugin can be resolved.

Add Java files to the Maven project using Eclipse To make it easier to work with the Maven generated project, import it into the Eclipse development environment, as shown in the following illustration. We will use the sling-intitial-content-archetype archetype like we did in a previous post.

The only difference is on the folder strucutre and the Maven configurations. This step is important to check if we added all the required assets to the static HTML works. Creating the Contacts in the Repository Our first step in our application is to create the contacts in the repository. For this we will use the built-in Sling Post Servlet. All the possibilities of use of this servlet can be seen in the Apache Sling Docs.

In our code we will show some of the properties we can use with it. In our exemple we are saying to get back to the home of our application. Instead of setting node properties, it will create a node under the contact node created.

Dialogs are built by combining Widgets. Dialog A dialog is a special type of widget.

To edit content, AEM uses dialogs defined by the application developer. These combine a series of widgets to present the user with all fields and actions necessary to edit the related content.

Dialogs are also used for editing metadata, and by various administrative tools. Component A software component is a system element offering a predefined service or event, and able to communicate with other components.

Within AEM a component is often used to render the content of a resource.

Rapid JCR applications development with Apache Sling

When the resource is a page, the component rendering it is called a Top-Level Component or a Pagecomponent. However, a component does not have to render content, nor be linked to a specific resource; for example, a navigation component will display information about multiple resources. The definition of a component includes:, the code used to render the content a dialog for the user input and the configuration of the resulting content.

Template A template is the base for a specific type of page. When creating a page in the Websites tab the user has to select a template. The new page is then created by copying this template. A template is a hierarchy of nodes that has the same structure as the page to be created, but without any actual content.

It defines the page component used to render the page and the default content primary top-level content.

Rob Ferguson

The content defines how it is rendered as AEM is content-centric. Page A page is an 'instance' of a template.See the FileVault tool documentation for detailed information. The result is a simple dashlet that reads a path from a configuration file, asks the repository for the most recently modified document in that folder, then displays some basic metadata. These processes can be represented as workflows, defined and developed within AEM , then applied to the appropriate content pages or digital assets as required.

ResourceResolverFactory ; import org.

To create a template, perform these tasks: 1. What I think is missing is a dashlet that goes one small step beyond Hello World to show how to read and display a simple set of data from the repository tier. We can find the taglib documentation here. The below images tells us how a URL is resolved and mapped to a resource.

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