26 lines
990 B
Ruby
26 lines
990 B
Ruby
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# An ActiveJob designed to spawn a bunch of subclasses of RedisSetJob or
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# RedisHashJob. Renames the desired redis key to avoid conflicts with other
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# code that might be modifying the same set/hash, then calls spawn_jobs on the
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# desired job class.
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class RedisJobSpawner < ApplicationJob
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def perform(job_name, *args, key: nil, redis: nil, **kwargs)
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job_class = job_name.constantize
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# Read settings from the job class:
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redis ||= job_class.redis
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key ||= job_class.base_key
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# Bail out early if there's nothing to process:
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return unless redis.exists(key)
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# Rename the job to a unique name to avoid conflicts when this is called
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# multiple times in a short period:
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spawn_id = redis.incr("job:#{job_name.underscore}:spawn:id")
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spawn_key = "job:#{job_name.underscore}:spawn:#{spawn_id}"
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redis.rename(key, spawn_key)
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# Tell the job class to handle the spawning.
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job_class.spawn_jobs(*args, redis: redis, key: spawn_key, **kwargs)
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end
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end
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