Camunda Team Blog

Adding Custom Elements to the BPMN Properties Panel

Written by Vinod Louis on , under Modeling category.
Extending the BPMN properties panel to add custom elements. Goal In this article, we will try to add a custom element to the BPMN properties panel under the ‘General’ tab for a service task type component. To be precise, under the ‘General’ tab, in the details sections, if ‘Java Class’ is selected as implementation type, a text box appears below. Here the user is expected to enter the java class, but our goal is to replace the text box with a combo box, where the options are populated externally with JSON/API data.

Camunda BPM Camel 0.5.0 Released - External Task Support

Written by Stephan Pelikan on , under Community category.

The community extension Camunda BPM Camel seamlessly connects Camunda BPM and the intergration framework Apache Camel.

Next to minor changes, the new release adds support for consuming Camunda’s external tasks (introduced in Camunda 7.4.0) in the form of a Camel route endpoint. This is another level of technical decoupling and brings a lot of adventages.

More FEEL for Camunda

Written by Philipp Ossler on , under Community category.

I’m happy to announce the first release of the new community extension FEEL-Scala. FEEL is a part of the DMN specification of the OMG and stands for “Friendly Enough Expression Language”. It provides a simple data model and a syntax designed for a wide audience. The new community extension implements a large feature set of FEEL and replaces the default FEEL engine of the Camunda DMN engine.

Argon2 as password-hashing function in Camunda

Written by Christopher Zell on , under Integration category.
Introduction On the new version of the Camunda Engine Platform (7.7) the user passwords, which are stored in the database, are by default hashed with a SHA-2 family algorithm. Before the passwords are hashed, they are concated with an individual random generated salt for each user, to prevent dictionary and rainbow table attacks. For someone who needs a more secure hashing algorithm Camunda introduce a new API, which allows to customize and exchange the default hashing algorithm.

Camunda BPM 7.7.0-alpha1 Released

Written by Daniel Meyer on , under Execution category.

Camunda 7.7.0-alpha1 is here and it is packed with new features. The highlights are:

  • Webapps: drill down in Metrics Charts and general facelift
  • Core Engine: drastic reduction of optimistic locking exceptions when using Job Executor
  • External Tasks: History API and monitoring in Cockpit
  • Fluent BPMN builder API: now generates BPMN diagram elements
  • Supported Environments: IBM Websphere 9 and OpenJDK 8
  • Security: salts and stronger hashing of user passwords
  • 32 Bug Fixes

The complete release notes are available in Jira.

List of known Issues.

You can Download Camunda For Free or Run it with Docker.

Conway's game of life

Written by Casper Biever on , under Community category.
The holidays are upon us, time for a lighter kind of blog post: Conways’s game of life on a Raspberry Pi. Conways game of life can be modelled by the following bpmn and dmn: In order to see what is happening the Raspberry Pi was hooked up to a 8x8 LED matrix (can be bought e.g at Adafruit together with the Raspberry Pi 3, breadboard and jumper wires). Raspberrry Pi and the LED matrix The LED matrix is driven by a simple progam written in Go that receives the information which LED to light or dim through a socket connection from the Camunda engine.