Enterprise Integration Patterns
Messaging Patterns
Messaging Patterns
Dynamic RouterDynamic RouterMessaging Patterns » Message Routing

You are using a Message Router to route messages between multiple destinations.

How can you avoid the dependency of the router on all possible destinations while maintaining its efficiency?

Use a Dynamic Router, a Router that can self-configure based on special configuration messages from participating destinations.

Besides the usual input and output channels the Dynamic Router uses an additional control channel. During system start-up, each potential recipient sends a special message to the Dynamic Router on this control channel, announcing its presence and listing the conditions under which it can handle a message. The Dynamic Router stores the 'preferences' for each participant in a rule base. When a message arrives, the Dynamic Router evaluates all rules and routes the message to the recipient whose rules are fulfilled. This allows for efficient, predictive routing without the maintenance dependency of the Dynamic Router on each potential recipient.

... Read the entire pattern in the book Enterprise Integration Patterns

Related patterns:

Content-Based Router, Message Filter, Message Router, Publish-Subscribe Channel, Recipient List, Routing Slip

Creative Commons Attribution License

You can reuse the following elements under the Creative Commons Attribution license: pattern icon, pattern name, problem and solution statements (in bold), and the sketch. Other portions are protected by copyright.

Enterprise Integration Patterns book cover

Enterprise Integration Patterns
The classic, as relevant as ever. Over 90,000 copies sold.

Software Architect Elevator book cover

The Software Architect Elevator
Learn how architects can play a critical role in IT transformation by applying their technical, communication, and organizational skills.

Cloud Strategy book cover

Cloud Strategy
Fill the large gap between high-level goals and product details by understanding decision trade-offs.