def update_nvset(nvset_element, nvpair_dict):
"""
Add, remove or update nvpairs according to nvpair_dict into nvset_element
If the resulting nvset is empty, it will be removed.
etree nvset_element -- container where nvpairs are set
dict nvpair_dict -- contains source for nvpair children
"""
for name, value in sorted(nvpair_dict.items()):
set_nvpair_in_nvset(nvset_element, name, value)
remove_when_pointless(nvset_element)
def update(id_provider, bundle_el, container_options, network_options,
port_map_add, port_map_remove, storage_map_add, storage_map_remove,
meta_attributes):
"""
Modify an existing bundle (does not touch encapsulated resources)
IdProvider id_provider -- elements' ids generator and uniqueness checker
etree bundle_el -- the bundle to be updated
dict container_options -- container options to modify
dict network_options -- network options to modify
list of dict port_map_add -- list of port mapping options to add
list of string port_map_remove -- list of port mapping ids to remove
list of dict storage_map_add -- list of storage mapping options to add
list of string storage_map_remove -- list of storage mapping ids to remove
dict meta_attributes -- meta attributes to update
"""
bundle_id = bundle_el.get("id")
update_attributes_remove_empty(_get_container_element(bundle_el),
container_options)
network_element = get_sub_element(bundle_el, "network")
if network_options:
update_attributes_remove_empty(network_element, network_options)
# It's crucial to remove port maps prior to appending new ones: If we are
# adding a port map which in any way conflicts with another one and that
# another one is being removed in the very same command, the removal must
# be done first, otherwise the conflict would manifest itself (and then
# possibly the old mapping would be removed)
if port_map_remove:
_remove_map_elements(network_element.findall("port-mapping"),
port_map_remove)
for port_map_options in port_map_add:
_append_port_map(network_element, id_provider, bundle_id,
port_map_options)
storage_element = get_sub_element(bundle_el, "storage")
# See the comment above about removing port maps prior to adding new ones.
if storage_map_remove:
_remove_map_elements(storage_element.findall("storage-mapping"),
storage_map_remove)
for storage_map_options in storage_map_add:
_append_storage_map(storage_element, id_provider, bundle_id,
storage_map_options)
if meta_attributes:
arrange_first_meta_attributes(bundle_el, meta_attributes)
# remove empty elements with no attributes
# meta attributes are handled in their own function
remove_when_pointless(network_element)
remove_when_pointless(storage_element)
def assert_count_tags_after_call(self, count, tag, **kwargs):
tree = etree.fromstring("""
<root>
<empty />
<with-subelement>
<subelement/>
</with-subelement>
<with-attr some="attribute"/>
<with-only-id id="1"/>
</root>
""")
xpath = ".//{0}".format(tag)
lib.remove_when_pointless(tree.find(xpath), **kwargs)
self.assertEqual(len(tree.xpath(xpath)), count)
def unset_guest(resource_element):
"""
Unset resource as guest node.
etree.Element resource_element
"""
guest_nvpair_list = resource_element.xpath(
"./meta_attributes/nvpair[{0}]".format(" or ".join([
'@name="{0}"'.format(option)
for option in (GUEST_OPTIONS + ["remote-node"])
])))
for nvpair in guest_nvpair_list:
meta_attributes = nvpair.getparent()
meta_attributes.remove(nvpair)
remove_when_pointless(meta_attributes)
def assert_count_tags_after_call(self, count, tag, **kwargs):
tree = etree.fromstring(
"""
<root>
<empty />
<with-subelement>
<subelement/>
</with-subelement>
<with-attr some="attribute"/>
<with-only-id id="1"/>
</root>
"""
)
xpath = ".//{0}".format(tag)
lib.remove_when_pointless(tree.find(xpath), **kwargs)
self.assertEqual(len(tree.xpath(xpath)), count)
def remove_with_resource_set(constraint_section, ticket_key, resource_id):
ref_element_list = constraint_section.xpath(
'.//rsc_ticket[@ticket="{0}"]/resource_set/resource_ref[@id="{1}"]'.
format(ticket_key, resource_id))
for ref_element in ref_element_list:
set_element = ref_element.getparent()
set_element.remove(ref_element)
if not len(set_element):
ticket_element = set_element.getparent()
ticket_element.remove(set_element)
#We do not care about attributes since without an attribute "rsc"
#they are pointless. Attribute "rsc" is mutually exclusive with
#resource_set (see rng) so it cannot be in this ticket_element.
remove_when_pointless(ticket_element, attribs_important=False)
return len(ref_element_list) > 0
def _set_any_defaults(section_name, env, options):
"""
string section_name -- determine the section of defaults
LibraryEnvironment env -- provides access to outside environment
dict options -- are desired options with its values; when value is empty the
option have to be removed
"""
env.report_processor.process(reports.defaults_can_be_overriden())
if not options:
return
defaults_section = sections.get(env.get_cib(), section_name)
arrange_first_meta_attributes(defaults_section,
options,
new_id="{0}-options".format(section_name))
remove_when_pointless(defaults_section)
env.push_cib()
def remove_with_resource_set(constraint_section, ticket_key, resource_id):
ref_element_list = constraint_section.xpath(
'.//rsc_ticket[@ticket="{0}"]/resource_set/resource_ref[@id="{1}"]'
.format(ticket_key, resource_id)
)
for ref_element in ref_element_list:
set_element = ref_element.getparent()
set_element.remove(ref_element)
# set_element is lxml element, therefore we have to use len() here
# pylint: disable=len-as-condition
if not len(set_element):
ticket_element = set_element.getparent()
ticket_element.remove(set_element)
#We do not care about attributes since without an attribute "rsc"
#they are pointless. Attribute "rsc" is mutually exclusive with
#resource_set (see rng) so it cannot be in this ticket_element.
remove_when_pointless(ticket_element, attribs_important=False)
return len(ref_element_list) > 0
def remove_with_resource_set(constraint_section, ticket_key, resource_id):
ref_element_list = constraint_section.xpath(
".//rsc_ticket[@ticket=$ticket]/resource_set/resource_ref[@id=$resource]",
ticket=ticket_key,
resource=resource_id,
)
for ref_element in ref_element_list:
set_element = ref_element.getparent()
set_element.remove(ref_element)
# set_element is lxml element, therefore we have to use len() here
# pylint: disable=len-as-condition
if not len(set_element):
ticket_element = set_element.getparent()
ticket_element.remove(set_element)
# We do not care about attributes since without an attribute "rsc"
# they are pointless. Attribute "rsc" is mutually exclusive with
# resource_set (see rng) so it cannot be in this ticket_element.
remove_when_pointless(ticket_element, attribs_important=False)
return len(ref_element_list) > 0
