dockercloud
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tifayuki
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2d9586a8a1
41 changed files with 2701 additions and 2 deletions
193
dockercloud/api/utils.py
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193
dockercloud/api/utils.py
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from __future__ import absolute_import
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import re
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from .action import Action
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from .container import Container
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from .exceptions import ApiError, ObjectNotFound, NonUniqueIdentifier
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from .node import Node
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from .nodecluster import NodeCluster
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from .service import Service
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from .stack import Stack
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def is_uuid4(identifier):
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uuid4_regexp = re.compile('^[a-f0-9]{8}-[a-f0-9]{4}-4[a-f0-9]{3}-[89ab][a-f0-9]{3}-[a-f0-9]{12}', re.I)
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match = uuid4_regexp.match(identifier)
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return bool(match)
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class Utils:
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@staticmethod
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def fetch_by_resource_uri(uri):
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if not isinstance(uri, basestring):
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raise ApiError("Uri format is invalid")
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terms = uri.strip("/").split("/")
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if len(terms) < 2:
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raise ApiError("Uri format is invalid")
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id = terms[-1]
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resource_type = terms[-2]
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if resource_type.lower() == "container":
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return Container.fetch(id)
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elif resource_type.lower() == "service":
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return Service.fetch(id)
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elif resource_type.lower() == "stack":
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return Stack.fetch(id)
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elif resource_type.lower() == "node":
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return Node.fetch(id)
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elif resource_type.lower() == "nodecluster":
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return NodeCluster.fetch(id)
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elif resource_type.lower() == "action":
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return Action.fetch(id)
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else:
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raise ApiError(
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"Unsupported resource type. Only support: action, container, node, nodecluster, service, stack")
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@staticmethod
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def fetch_remote_container(identifier, raise_exceptions=True):
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try:
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if is_uuid4(identifier):
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try:
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return Container.fetch(identifier)
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except Exception:
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raise ObjectNotFound("Cannot find a container with the identifier '%s'" % identifier)
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else:
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if "." in identifier:
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terms = identifier.split(".", 2)
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objects_same_identifier = Container.list(name=terms[0], service__stack__name=terms[1])
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else:
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objects_same_identifier = Container.list(uuid__startswith=identifier) or \
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Container.list(name=identifier)
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if len(objects_same_identifier) == 1:
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uuid = objects_same_identifier[0].uuid
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return Container.fetch(uuid)
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elif len(objects_same_identifier) == 0:
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raise ObjectNotFound("Cannot find a container with the identifier '%s'" % identifier)
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raise NonUniqueIdentifier("More than one container has the same identifier, please use the long uuid")
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except (NonUniqueIdentifier, ObjectNotFound) as e:
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if not raise_exceptions:
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return e
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raise e
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@staticmethod
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def fetch_remote_service(identifier, raise_exceptions=True):
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try:
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if is_uuid4(identifier):
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try:
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return Service.fetch(identifier)
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except Exception:
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raise ObjectNotFound("Cannot find a service with the identifier '%s'" % identifier)
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else:
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if "." in identifier:
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terms = identifier.split(".", 2)
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objects_same_identifier = Service.list(name=terms[0], stack__name=terms[1])
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else:
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objects_same_identifier = Service.list(uuid__startswith=identifier) or \
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Service.list(name=identifier)
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if len(objects_same_identifier) == 1:
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uuid = objects_same_identifier[0].uuid
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return Service.fetch(uuid)
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elif len(objects_same_identifier) == 0:
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raise ObjectNotFound("Cannot find a service with the identifier '%s'" % identifier)
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raise NonUniqueIdentifier("More than one service has the same identifier, please use the long uuid")
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except (NonUniqueIdentifier, ObjectNotFound) as e:
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if not raise_exceptions:
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return e
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raise e
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@staticmethod
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def fetch_remote_stack(identifier, raise_exceptions=True):
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try:
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if is_uuid4(identifier):
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try:
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return Stack.fetch(identifier)
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except Exception:
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raise ObjectNotFound("Cannot find a stack with the identifier '%s'" % identifier)
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else:
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objects_same_identifier = Stack.list(uuid__startswith=identifier) or \
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Stack.list(name=identifier)
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if len(objects_same_identifier) == 1:
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uuid = objects_same_identifier[0].uuid
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return Stack.fetch(uuid)
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elif len(objects_same_identifier) == 0:
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raise ObjectNotFound("Cannot find a stack with the identifier '%s'" % identifier)
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raise NonUniqueIdentifier("More than one stack has the same identifier, please use the long uuid")
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except (NonUniqueIdentifier, ObjectNotFound) as e:
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if not raise_exceptions:
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return e
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raise e
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@staticmethod
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def fetch_remote_node(identifier, raise_exceptions=True):
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try:
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if is_uuid4(identifier):
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try:
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return Node.fetch(identifier)
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except Exception:
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raise ObjectNotFound("Cannot find a node with the identifier '%s'" % identifier)
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else:
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objects_same_identifier = Node.list(uuid__startswith=identifier)
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if len(objects_same_identifier) == 1:
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uuid = objects_same_identifier[0].uuid
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return Node.fetch(uuid)
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elif len(objects_same_identifier) == 0:
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raise ObjectNotFound("Cannot find a node with the identifier '%s'" % identifier)
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raise NonUniqueIdentifier("More than one node has the same identifier, please use the long uuid")
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except (NonUniqueIdentifier, ObjectNotFound) as e:
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if not raise_exceptions:
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return e
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raise e
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@staticmethod
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def fetch_remote_nodecluster(identifier, raise_exceptions=True):
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try:
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if is_uuid4(identifier):
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try:
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return NodeCluster.fetch(identifier)
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except Exception:
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raise ObjectNotFound("Cannot find a node cluster with the identifier '%s'" % identifier)
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else:
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objects_same_identifier = NodeCluster.list(uuid__startswith=identifier) or \
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NodeCluster.list(name=identifier)
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if len(objects_same_identifier) == 1:
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uuid = objects_same_identifier[0].uuid
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return NodeCluster.fetch(uuid)
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elif len(objects_same_identifier) == 0:
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raise ObjectNotFound("Cannot find a node cluster with the identifier '%s'" % identifier)
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raise NonUniqueIdentifier(
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"More than one node cluster has the same identifier, please use the long uuid")
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except (NonUniqueIdentifier, ObjectNotFound) as e:
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if not raise_exceptions:
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return e
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raise e
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@staticmethod
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def fetch_remote_action(identifier, raise_exceptions=True):
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try:
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if is_uuid4(identifier):
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try:
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return Action.fetch(identifier)
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except Exception:
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raise ObjectNotFound("Cannot find an action with the identifier '%s'" % identifier)
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else:
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objects_same_identifier = Action.list(uuid__startswith=identifier)
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if len(objects_same_identifier) == 1:
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uuid = objects_same_identifier[0].uuid
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return Action.fetch(uuid)
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elif len(objects_same_identifier) == 0:
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raise ObjectNotFound("Cannot find an action cluster with the identifier '%s'" % identifier)
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raise NonUniqueIdentifier(
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"More than one action has the same identifier, please use the long uuid")
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except (NonUniqueIdentifier, ObjectNotFound) as e:
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if not raise_exceptions:
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return e
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raise e
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