Source code for swh.objstorage.api.client

# Copyright (C) 2015-2020  The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution
# License: GNU General Public License version 3, or any later version
# See top-level LICENSE file for more information

from swh.core.api import RPCClient
from swh.model import hashutil
from swh.objstorage.exc import Error, ObjNotFoundError, ObjStorageAPIError
from swh.objstorage.objstorage import DEFAULT_CHUNK_SIZE, DEFAULT_LIMIT

[docs]class RemoteObjStorage: """Proxy to a remote object storage. This class allows to connect to an object storage server via http protocol. Attributes: url (string): The url of the server to connect. Must end with a '/' session: The session to send requests. """ def __init__(self, **kwargs): self._proxy = RPCClient( api_exception=ObjStorageAPIError, reraise_exceptions=[ObjNotFoundError, Error], **kwargs, )
[docs] def check_config(self, *, check_write): return"check_config", {"check_write": check_write})
def __contains__(self, obj_id): return"content/contains", {"obj_id": obj_id})
[docs] def add(self, content, obj_id=None, check_presence=True): return "content/add", {"content": content, "obj_id": obj_id, "check_presence": check_presence}, )
[docs] def add_batch(self, contents, check_presence=True): return "content/add/batch", {"contents": contents, "check_presence": check_presence,}, )
[docs] def restore(self, content, obj_id=None, *args, **kwargs): return self.add(content, obj_id, check_presence=False)
[docs] def get(self, obj_id): return"content/get", {"obj_id": obj_id})
[docs] def get_batch(self, obj_ids): return"content/get/batch", {"obj_ids": obj_ids})
[docs] def check(self, obj_id): return"content/check", {"obj_id": obj_id})
[docs] def delete(self, obj_id): # deletion permission are checked server-side return"content/delete", {"obj_id": obj_id})
# Management methods
[docs] def get_random(self, batch_size): return"content/get/random", {"batch_size": batch_size})
# Streaming methods
[docs] def add_stream(self, content_iter, obj_id, check_presence=True): obj_id = hashutil.hash_to_hex(obj_id) return self._proxy.post_stream( "content/add_stream/{}".format(obj_id), params={"check_presence": check_presence}, data=content_iter, )
[docs] def get_stream(self, obj_id, chunk_size=DEFAULT_CHUNK_SIZE): obj_id = hashutil.hash_to_hex(obj_id) return self._proxy.get_stream( "content/get_stream/{}".format(obj_id), chunk_size=chunk_size )
def __iter__(self): yield from self._proxy.get_stream("content")
[docs] def list_content(self, last_obj_id=None, limit=DEFAULT_LIMIT): params = {"limit": limit} if last_obj_id: params["last_obj_id"] = hashutil.hash_to_hex(last_obj_id) yield from self._proxy.get_stream("content", params=params)