125 lines
4.4 KiB
Python
125 lines
4.4 KiB
Python
#!/usr/bin/python3
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'''
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This module contains keywords which are used for asserting
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that storage policies are kept.
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'''
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from common import NEOFS_NETMAP
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import complex_object_actions
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import neofs_verbs
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from robot.api.deco import keyword
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ROBOT_AUTO_KEYWORDS = False
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@keyword('Get Object Copies')
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def get_object_copies(complexity: str, wallet: str, cid: str, oid: str):
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"""
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The function performs requests to all nodes of the container and
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finds out if they store a copy of the object. The procedure is
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different for simple and complex object, so the function requires
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a sign of object complexity.
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Args:
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complexity (str): the tag of object size and complexity,
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[Simple|Complex]
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wallet (str): the path to the wallet on whose behalf the
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copies are got
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cid (str): ID of the container
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oid (str): ID of the Object
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Returns:
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(int): the number of object copies in the container
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"""
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return (get_simple_object_copies(wallet, cid, oid) if complexity == "Simple"
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else get_complex_object_copies(wallet, cid, oid))
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@keyword('Get Simple Object Copies')
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def get_simple_object_copies(wallet: str, cid: str, oid: str):
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"""
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To figure out the number of a simple object copies, only direct
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HEAD requests should be made to the every node of the container.
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We consider non-empty HEAD response as a stored object copy.
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Args:
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wallet (str): the path to the wallet on whose behalf the
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copies are got
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cid (str): ID of the container
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oid (str): ID of the Object
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Returns:
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(int): the number of object copies in the container
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"""
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copies = 0
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for node in NEOFS_NETMAP:
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response = neofs_verbs.head_object(wallet, cid, oid,
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endpoint=node,
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is_direct=True)
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if response:
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copies += 1
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return copies
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@keyword('Get Complex Object Copies')
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def get_complex_object_copies(wallet: str, cid: str, oid: str):
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"""
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To figure out the number of a complex object copies, we firstly
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need to retrieve its Last object. We consider that the number of
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complex object copies is equal to the number of its last object
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copies. When we have the Last object ID, the task is reduced
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to getting simple object copies.
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Args:
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wallet (str): the path to the wallet on whose behalf the
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copies are got
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cid (str): ID of the container
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oid (str): ID of the Object
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Returns:
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(int): the number of object copies in the container
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"""
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last_oid = complex_object_actions.get_last_object(wallet, cid, oid)
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return get_simple_object_copies(wallet, cid, last_oid)
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@keyword('Get Nodes With Object')
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def get_nodes_with_object(wallet: str, cid: str, oid: str):
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"""
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The function returns list of nodes which store
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the given object.
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Args:
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wallet (str): the path to the wallet on whose behalf
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we request the nodes
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cid (str): ID of the container which store the object
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oid (str): object ID
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Returns:
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(list): nodes which store the object
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"""
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nodes_list = []
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for node in NEOFS_NETMAP:
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res = neofs_verbs.head_object(wallet, cid, oid,
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endpoint=node,
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is_direct=True)
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if res is not None:
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nodes_list.append(node)
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return nodes_list
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@keyword('Get Nodes Without Object')
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def get_nodes_without_object(wallet: str, cid: str, oid: str):
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"""
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The function returns list of nodes which do not store
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the given object.
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Args:
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wallet (str): the path to the wallet on whose behalf
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we request the nodes
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cid (str): ID of the container which store the object
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oid (str): object ID
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Returns:
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(list): nodes which do not store the object
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"""
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nodes_list = []
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for node in NEOFS_NETMAP:
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res = neofs_verbs.head_object(wallet, cid, oid,
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endpoint=node,
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is_direct=True)
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if res is None:
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nodes_list.append(node)
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return nodes_list
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