title: Sending Logging Message with Interceptor in Spring Integration
body: <p>Is it possible to configure an interceptor in Spring Integration to specify a logging message?</p>
  
  <p>This is in contrast to using a wire-tap to send the message to a logging channel to which a logging channel adapter subscribes. The problem with this approach is that the logging channel has the expression for what exactly to log. In my use case I'd like to use a global channel-interceptor to specify a logging message and send it to a logging channel adapter, rather than having to define a logging channel adapter for every possible logging message I might want.</p>
  
  <p>For a moment I thought I could define a service activator with an SpEL expression to produce the string logging message (and with an output-channel of the deisred logging channel) inside a channel-interceptor definition, but it's looking for an input-channel.</p>