50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
import logging
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log = logging.getLogger(__name__)
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class BlobAvailabilityHandlerFactory:
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# implements(IQueryHandlerFactory)
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def __init__(self, blob_manager):
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self.blob_manager = blob_manager
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######### IQueryHandlerFactory #########
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def build_query_handler(self):
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q_h = BlobAvailabilityHandler(self.blob_manager)
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return q_h
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def get_primary_query_identifier(self):
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return 'requested_blobs'
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def get_description(self):
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return "Blob Availability - blobs that are available to be uploaded"
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class BlobAvailabilityHandler:
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#implements(IQueryHandler)
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def __init__(self, blob_manager):
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self.blob_manager = blob_manager
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self.query_identifiers = ['requested_blobs']
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######### IQueryHandler #########
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def register_with_request_handler(self, request_handler, peer):
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request_handler.register_query_handler(self, self.query_identifiers)
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def handle_queries(self, queries):
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if self.query_identifiers[0] in queries:
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log.info("Received the client's list of requested blobs")
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available_blobs = self._get_available_blobs(queries[self.query_identifiers[0]])
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log.debug("available blobs: %s", str(available_blobs))
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return {'available_blobs': available_blobs}
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return {}
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######### internal #########
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def _get_available_blobs(self, requested_blobs):
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return self.blob_manager.completed_blobs(requested_blobs)
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