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swh/vault/cookers/base.py
| Show First 20 Lines • Show All 92 Lines • ▼ Show 20 Lines | class BaseVaultCooker(metaclass=abc.ABCMeta): | ||||
| @abc.abstractmethod | @abc.abstractmethod | ||||
| def prepare_bundle(self): | def prepare_bundle(self): | ||||
| """Implementation of the cooker. Yields chunks of the bundle bytes. | """Implementation of the cooker. Yields chunks of the bundle bytes. | ||||
| Override this with the cooker implementation. | Override this with the cooker implementation. | ||||
| """ | """ | ||||
| raise NotImplementedError | raise NotImplementedError | ||||
| def cache_type_key(self) -> str: | |||||
| assert self.CACHE_TYPE_KEY | |||||
| return self.CACHE_TYPE_KEY | |||||
| def write(self, chunk): | def write(self, chunk): | ||||
| self.fileobj.write(chunk) | self.fileobj.write(chunk) | ||||
| def cook(self): | def cook(self): | ||||
| """Cook the requested object into a bundle | """Cook the requested object into a bundle | ||||
| """ | """ | ||||
| self.backend.set_status(self.obj_type, self.obj_id, "pending") | self.backend.set_status(self.obj_type, self.obj_id, "pending") | ||||
| self.backend.set_progress(self.obj_type, self.obj_id, "Processing...") | self.backend.set_progress(self.obj_type, self.obj_id, "Processing...") | ||||
| self.fileobj = BytesIOBundleSizeLimit(size_limit=self.max_bundle_size) | self.fileobj = BytesIOBundleSizeLimit(size_limit=self.max_bundle_size) | ||||
| try: | try: | ||||
| try: | try: | ||||
| self.prepare_bundle() | self.prepare_bundle() | ||||
| except QueryCanceledError: | except QueryCanceledError: | ||||
| raise PolicyError( | raise PolicyError( | ||||
| "Timeout reached while assembling the requested bundle" | "Timeout reached while assembling the requested bundle" | ||||
| ) | ) | ||||
| bundle = self.fileobj.getvalue() | bundle = self.fileobj.getvalue() | ||||
| # TODO: use proper content streaming instead of put_bundle() | # TODO: use proper content streaming instead of put_bundle() | ||||
| self.backend.put_bundle(self.CACHE_TYPE_KEY, self.obj_id, bundle) | self.backend.put_bundle(self.cache_type_key(), self.obj_id, bundle) | ||||
| except PolicyError as e: | except PolicyError as e: | ||||
| self.backend.set_status(self.obj_type, self.obj_id, "failed") | self.backend.set_status(self.obj_type, self.obj_id, "failed") | ||||
| self.backend.set_progress(self.obj_type, self.obj_id, str(e)) | self.backend.set_progress(self.obj_type, self.obj_id, str(e)) | ||||
| except Exception: | except Exception: | ||||
| self.backend.set_status(self.obj_type, self.obj_id, "failed") | self.backend.set_status(self.obj_type, self.obj_id, "failed") | ||||
| self.backend.set_progress( | self.backend.set_progress( | ||||
| self.obj_type, | self.obj_type, | ||||
| self.obj_id, | self.obj_id, | ||||
| "Internal Server Error. This incident will be reported.", | "Internal Server Error. This incident will be reported.", | ||||
| ) | ) | ||||
| logging.exception("Bundle cooking failed.") | logging.exception("Bundle cooking failed.") | ||||
| else: | else: | ||||
| self.backend.set_status(self.obj_type, self.obj_id, "done") | self.backend.set_status(self.obj_type, self.obj_id, "done") | ||||
| self.backend.set_progress(self.obj_type, self.obj_id, None) | self.backend.set_progress(self.obj_type, self.obj_id, None) | ||||
| finally: | finally: | ||||
| self.backend.send_notif(self.obj_type, self.obj_id) | self.backend.send_notif(self.obj_type, self.obj_id) | ||||