Autofac and Quartz.Net Integration

Does anyone have any experience integrating autofac and Quartz.Net? If so, where is it best to control lifetime management -- the IJobFactory, within the Execute of the IJob, or through event listeners?


Right now, I'm using a custom autofac IJobFactory to create the IJob instances, but I don't have an easy way to plug in to a ILifetimeScope in the IJobFactory to ensure any expensive resources that are injected in the IJob are cleaned up. The job factory just creates an instance of a job and returns it. Here are my current ideas (hopefully there are better ones...)

  • It looks like most AutoFac integrations somehow wrap a ILifetimeScope around the unit of work they create. The obvious brute force way seems to be to pass an ILifetimeScope into the IJob and have the Execute method create a child ILifetimeScope and instantiate any dependencies there. This seems a little too close to a service locator pattern, which in turn seems to go against the spirit of autofac, but it might be the most obvious way to ensure proper handling of a scope.

  • I could plug into some of the Quartz events to handle the different phases of the Job execution stack, and handle lifetime management there. That would probably be a lot more work, but possibly worth it if it gets cleaner separation of concerns.

  • Ensure that an IJob is a simple wrapper around an IServiceComponent type, which would do all the work, and request it as Owned, or Func>. I like how this seems to vibe more with autofac, but I don't like that its not strictly enforceable for all implementors of IJob.

15
задан David Faivre 6 February 2011 в 01:21
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