def nodes_match(old_node, new_node):
""" Determines if old node is a sufficient match for the new node. """
if old_node.get('instance_type') != new_node.instance_type:
return False
# Because this function deals with the locations json file we use this
# method from LocalState.
local_state_roles = LocalState.get_node_roles(old_node)
if local_state_roles == ['open']:
return True
old_roles = {self.DEPRECATED_ROLES.get(role, role)
for role in local_state_roles}
return old_roles == set(new_node.roles)
def nodes_match(old_node, new_node):
""" Determines if old node is a sufficient match for the new node. """
if old_node.get('instance_type') != new_node.instance_type:
return False
# Because this function deals with the locations json file we use this
# method from LocalState.
local_state_roles = LocalState.get_node_roles(old_node)
if local_state_roles == ['open']:
return True
old_roles = {
self.DEPRECATED_ROLES.get(role, role)
for role in local_state_roles
}
return old_roles == set(new_node.roles)
def from_locations_json_list(self, locations_nodes_list):
"""Returns a list of nodes if the previous locations JSON matches with the
current NodeLayout from the AppScalefile.
Args:
locations_nodes_list: A list of nodes in dictionary form loaded from
the locations json.
Raises:
BadConfigurationException if the locations json nodes cannot be matched
with the AppScalefile nodes.
"""
# If the length does not match up the user has added or removed a node in
# the AppScalefile.
if len(locations_nodes_list) != len(self.nodes):
raise BadConfigurationException("AppScale does not currently support "
"changes to AppScalefile or locations "
"JSON between a down and an up. If "
"you would like to "
"change the node layout use "
"down --terminate before an up.")
# Place defined nodes first so they will be matched before open nodes.
old_nodes = [node for node in locations_nodes_list if
LocalState.get_node_roles(node) != ['open']]
old_nodes.extend(
[node for node in locations_nodes_list
if LocalState.get_node_roles(node) == ['open']])
def nodes_match(old_node, new_node):
""" Determines if old node is a sufficient match for the new node. """
if old_node.get('instance_type') != new_node.instance_type:
return False
# Because this function deals with the locations json file we use this
# method from LocalState.
local_state_roles = LocalState.get_node_roles(old_node)
if local_state_roles == ['open']:
return True
old_roles = {self.DEPRECATED_ROLES.get(role, role)
for role in local_state_roles}
return old_roles == set(new_node.roles)
# Ensure each node has a matching locations.json entry.
for new_node in self.nodes:
index = next((index for index, old_node in enumerate(old_nodes)
if nodes_match(old_node, new_node)), -1)
if index == -1:
raise BadConfigurationException('Unable to find a match for {}'
'in locations.json'.format(new_node))
roles = new_node.roles
old_node = old_nodes.pop(index)
new_node.from_json(old_node)
new_node.roles = roles
if not new_node.is_valid():
raise BadConfigurationException('Node is invalid: {}'.format(new_node))
return self.nodes
def from_locations_json_list(self, locations_nodes_list):
"""Returns a list of nodes if the previous locations JSON matches with the
current NodeLayout from the AppScalefile.
Args:
locations_nodes_list: A list of nodes in dictionary form loaded from
the locations json.
Raises:
BadConfigurationException if the locations json nodes cannot be matched
with the AppScalefile nodes.
"""
# If the length does not match up the user has added or removed a node in
# the AppScalefile.
if len(locations_nodes_list) != len(self.nodes):
raise BadConfigurationException(
"AppScale does not currently support "
"changes to AppScalefile or locations "
"JSON between a down and an up. If "
"you would like to "
"change the node layout use "
"down --terminate before an up.")
# Place defined nodes first so they will be matched before open nodes.
old_nodes = [
node for node in locations_nodes_list
if LocalState.get_node_roles(node) != ['open']
]
old_nodes.extend([
node for node in locations_nodes_list
if LocalState.get_node_roles(node) == ['open']
])
def nodes_match(old_node, new_node):
""" Determines if old node is a sufficient match for the new node. """
if old_node.get('instance_type') != new_node.instance_type:
return False
# Because this function deals with the locations json file we use this
# method from LocalState.
local_state_roles = LocalState.get_node_roles(old_node)
if local_state_roles == ['open']:
return True
old_roles = {
self.DEPRECATED_ROLES.get(role, role)
for role in local_state_roles
}
return old_roles == set(new_node.roles)
# Ensure each node has a matching locations.json entry.
for new_node in self.nodes:
index = next((index for index, old_node in enumerate(old_nodes)
if nodes_match(old_node, new_node)), -1)
if index == -1:
raise BadConfigurationException(
'Unable to find a match for {}'
'in locations.json'.format(new_node))
roles = new_node.roles
old_node = old_nodes.pop(index)
new_node.from_json(old_node)
new_node.roles = roles
if not new_node.is_valid():
raise BadConfigurationException(
'Node is invalid: {}'.format(new_node))
return self.nodes
