Pattern
A message broker is an architectural pattern for message validation, message transformation and message routing. It mediates communication amongst applications, minimizing the mutual awareness that applications should have of each other in order to be able to exchange messages, effectively implementing decoupling.
The purpose of a broker is to take incoming messages from applications and perform some action on them. The following are examples of actions that might be taken in the broker:
- Route messages to one or more of many destinations
- Transform messages to an alternative representation
- Perform message aggregation, decomposing messages into multiple messages and sending them to their destination, then recomposing the responses into one message to return to the user
- Interact with an external repository to augment a message or store it
- Invoke Web services to retrieve data
- Respond to events or errors
- Provide content and topic-based message routing using the publish/subscribe model
Read more about this topic: Message Broker
Famous quotes containing the word pattern:
“Put out the light, and then put out the light.
If I quench thee, thou flaming minister,
I can again thy former light restore
Should I repent me; but once put out thy light,
Thou cunningst pattern of excelling nature,
I know not where is that Promethean heat
That can thy light relume.”
—William Shakespeare (15641616)
“For what is wedlock forcèd, but a hell,
An age of discord and continual strife?
Whereas the contrary bringeth bliss,
And is a pattern of celestial peace.”
—William Shakespeare (15641616)
“Swift while the woof is whole,
turn now my spirit, swift,
and tear the pattern there,
the flowers so deftly wrought,
the border of sea-blue,
the sea-blue coast of home.”
—Hilda Doolittle (18861961)