Page History

...

ServiceMix is an Enterprise Service Bus (ESB) that is based on the Java Business Integration (JBI) standard JSR 208. The JBI-based design specifies a standards-based pluggable architecture with a JVM-based runtime component called the Normalized Message Router (NMR). The Basic example demonstrates how applications communicate via the ServiceMix ESB, and the role that the NMR can play plays in that communication. Similar techniques could be used to plug any external ¹ application or service into ServiceMix (e.g. SAP, Peoplesoft, spreadsheets, POJOs, Webservices and EJBs) and allow it to communicate with other external applications or components using ServiceMix itself.

A hypothetical business scenario, which extends the Basic Example, is that of a department store distributor. This distributor sells products from multiple wholesalers (suppliers) to various retailers (customers). The distributor presents a common interface for product ordering to each of its department store customers. However, the distributor must work with a different ordering interface for each wholesale suppliers for the products they are buying for distribution.

Using an ESB, the distributor has developed a number of components to receive department store orders and then dynamically route and transform these orders to the appropriate wholesaler. The order processing flow is described as follows:

...

The following diagram illustrates thisthe procedure outlined above:

...

A hypothetical business scenario: An online wholesale distributor of books and music CDs, receives a nightly order from a retail store. The nightly order is transmitted to the distributor as a file and placed in a particular directory on disk. There is a ServiceMix component (getOrders) that continually scans that directory looking for order files. When it sees a file, it reads it from the disk, then transforms it into a normalized message. It sends the message over the bus (NMR) to another component called "placeOrders." The placeOrders program divides the order into separate orders for its' suppliers, e.g., one order will be placed with the distributor's book supplier, one order will go to the CD supplier, etc. At some later point, the suppliers will log in and retrieve their order files. This step is not shown here, but can have an automtatic or manual implementation and this implementation could also be integrated with ServiceMix.

The following diagram illustrates this:

...