Migrating Application Integrations
نویسندگان
چکیده
The internal functionality of middleware is highly variable and thus, well-constructed integrations are difficult to perform without understanding the architectural style of the middleware and the adaptive connections needed make components in an application integration " middleware-aware. " In this paper, we use IBM's WebSphere® MQ to implement two different architectural styles of integration: request/reply and publish/subscribe. The middleware supports both approaches by using different configurations of integration enablers, functionality used for controlling, routing, and translating messages. Component connectors attached to the middleware also contain integration enablers, and trade-offs exist between highly centralized solutions in which the middleware is responsible for the majority of the integration functionality and highly localized solutions, in which application connectors are responsible for integration to the largest extent possible. We discuss the trade-offs related to increasing localized adaptation at the component end versus increasing the role of the middleware in customized integrations.
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