def find_all_items(self,
resource_type=None,
properties=None,
profile_list=None):
"""Find all items matching the given type, properties, and profiles.
Args:
resource_type (str): Resource type string like 'scsi' or 'serial'
properties (dict): Properties and their values to match
profile_list (list): List of profiles to filter on
Returns:
list: Matching OVFItem instances
"""
items = [
self.item_dict[instance]
for instance in natural_sort(self.item_dict)
]
filtered_items = []
if properties is None:
properties = {}
for item in items:
if self.item_match(item, resource_type, properties, profile_list):
filtered_items.append(item)
logger.spam(
"Found %s Items of type %s with properties %s and"
" profiles %s", len(filtered_items), resource_type, properties,
profile_list)
return filtered_items
def get_nonintersecting_set_list(self):
"""Identify the minimal non-intersecting set of profiles.
Returns:
list: List of profile-set strings.
"""
set_list = []
for name in self.property_names:
for (_, new_set) in list(self.properties[name].items()):
new_set_list = []
for existing_set in set_list:
# If the sets are identical or do not intersect, do nothing
if (new_set == existing_set
or not new_set.intersection(existing_set)):
new_set_list.append(frozenset(existing_set))
continue
# Otherwise, need to re-partition!
set_a = existing_set.difference(new_set)
new_set_list.append(frozenset(set_a))
set_b = existing_set.intersection(new_set)
new_set_list.append(frozenset(set_b))
new_set = new_set.difference(existing_set)
new_set_list.append(frozenset(new_set))
# Remove duplicate and empty entries
set_list = [x for x in set(new_set_list) if x]
logger.spam("Final set list is %s", set_list)
# Construct a list of profile strings
set_string_list = []
for final_set in set_list:
if None in final_set:
set_string_list.append("")
else:
set_string_list.append(" ".join(natural_sort(final_set)))
set_string_list = natural_sort(set_string_list)
logger.spam("set string list: %s", set_string_list)
return set_string_list
def get_nonintersecting_set_list(self):
"""Identify the minimal non-intersecting set of profiles.
Returns:
list: List of profile-set strings.
"""
set_list = []
for name in self.property_names:
for (_, new_set) in list(self.properties[name].items()):
new_set_list = []
for existing_set in set_list:
# If the sets are identical or do not intersect, do nothing
if (new_set == existing_set or
not new_set.intersection(existing_set)):
new_set_list.append(frozenset(existing_set))
continue
# Otherwise, need to re-partition!
set_a = existing_set.difference(new_set)
new_set_list.append(frozenset(set_a))
set_b = existing_set.intersection(new_set)
new_set_list.append(frozenset(set_b))
new_set = new_set.difference(existing_set)
new_set_list.append(frozenset(new_set))
# Remove duplicate and empty entries
set_list = [x for x in set(new_set_list) if x]
logger.spam("Final set list is %s", set_list)
# Construct a list of profile strings
set_string_list = []
for final_set in set_list:
if None in final_set:
set_string_list.append("")
else:
set_string_list.append(" ".join(natural_sort(final_set)))
set_string_list = natural_sort(set_string_list)
logger.spam("set string list: %s", set_string_list)
return set_string_list
def update_xml(self):
"""Regenerate all Items under the VirtualHardwareSection, if needed.
Will do nothing if no Items have been changed.
"""
modified = False
if len(self.item_dict) != len(
XML.find_all_children(
self.ovf.virtual_hw_section,
set([
self.ovf.ITEM, self.ovf.STORAGE_ITEM,
self.ovf.ETHERNET_PORT_ITEM
]))):
modified = True
else:
for ovfitem in self.item_dict.values():
if ovfitem.modified:
modified = True
break
if not modified:
logger.verbose("No changes to hardware definition, "
"so no XML update is required")
return
# Delete the existing Items:
delete_count = 0
for item in list(self.ovf.virtual_hw_section):
if (item.tag == self.ovf.ITEM or item.tag == self.ovf.STORAGE_ITEM
or item.tag == self.ovf.ETHERNET_PORT_ITEM):
self.ovf.virtual_hw_section.remove(item)
delete_count += 1
logger.debug("Cleared %d existing items from VirtualHWSection",
delete_count)
# Generate the new XML Items, in appropriately sorted order by Instance
ordering = [self.ovf.INFO, self.ovf.SYSTEM, self.ovf.ITEM]
for instance in natural_sort(self.item_dict):
logger.debug("Writing Item(s) with InstanceID %s", instance)
ovfitem = self.item_dict[instance]
new_items = ovfitem.generate_items()
logger.spam("Generated %d items", len(new_items))
for item in new_items:
XML.add_child(self.ovf.virtual_hw_section, item, ordering)
logger.verbose(
"Updated XML VirtualHardwareSection, now contains %d "
"Items representing %d devices",
len(self.ovf.virtual_hw_section.findall(self.ovf.ITEM)),
len(self.item_dict))
def update_xml(self):
"""Regenerate all Items under the VirtualHardwareSection, if needed.
Will do nothing if no Items have been changed.
"""
modified = False
if len(self.item_dict) != len(XML.find_all_children(
self.ovf.virtual_hw_section,
set([self.ovf.ITEM, self.ovf.STORAGE_ITEM,
self.ovf.ETHERNET_PORT_ITEM]))):
modified = True
else:
for ovfitem in self.item_dict.values():
if ovfitem.modified:
modified = True
break
if not modified:
logger.verbose("No changes to hardware definition, "
"so no XML update is required")
return
# Delete the existing Items:
delete_count = 0
for item in list(self.ovf.virtual_hw_section):
if (item.tag == self.ovf.ITEM or
item.tag == self.ovf.STORAGE_ITEM or
item.tag == self.ovf.ETHERNET_PORT_ITEM):
self.ovf.virtual_hw_section.remove(item)
delete_count += 1
logger.debug("Cleared %d existing items from VirtualHWSection",
delete_count)
# Generate the new XML Items, in appropriately sorted order by Instance
ordering = [self.ovf.INFO, self.ovf.SYSTEM, self.ovf.ITEM]
for instance in natural_sort(self.item_dict):
logger.debug("Writing Item(s) with InstanceID %s", instance)
ovfitem = self.item_dict[instance]
new_items = ovfitem.generate_items()
logger.spam("Generated %d items", len(new_items))
for item in new_items:
XML.add_child(self.ovf.virtual_hw_section, item, ordering)
logger.verbose("Updated XML VirtualHardwareSection, now contains %d "
"Items representing %d devices",
len(self.ovf.virtual_hw_section.findall(self.ovf.ITEM)),
len(self.item_dict))
def find_all_items(self, resource_type=None, properties=None,
profile_list=None):
"""Find all items matching the given type, properties, and profiles.
Args:
resource_type (str): Resource type string like 'scsi' or 'serial'
properties (dict): Properties and their values to match
profile_list (list): List of profiles to filter on
Returns:
list: Matching OVFItem instances
"""
items = [self.item_dict[instance] for instance in
natural_sort(self.item_dict)]
filtered_items = []
if properties is None:
properties = {}
for item in items:
if self.item_match(item, resource_type, properties, profile_list):
filtered_items.append(item)
logger.spam("Found %s Items of type %s with properties %s and"
" profiles %s", len(filtered_items), resource_type,
properties, profile_list)
return filtered_items