Visualize OSGi Service Graphs with Composum

Here's a neat trick for AEM developers and architects: you can create an diagram representation of the service dependencies using Composum. For those not familiar, Composum is an Open-Source project based on Apache Sling. 

• Composum Sling Core Console  
• Composum Sling Core Commons

Once you install the dependencies you can access the Composum Service Graph web console at /system/console/servicegraph.

Using the Service Graph Web Console

The Service Graph Web Console has a couple fields, the most important being the Classnames Regex. You can put any regular expression to filter what classes should be including:

• ^com.composum
• ^com.day.cq.wcm.foundation.forms
  

Downloading as an Image

Currently, the Service Graph is only available as a SVG, not a downloadable image, but using the following JavaScript snippet you can download the Service Graph:

I've also created an issue with the Composum team to include this in their next release.