def __init__(self, rest):
super().__init__(rest)
self.elements = ElementService(rest)
class HierarchyService(ObjectService):
""" Service to handle Object Updates for TM1 Hierarchies
"""
def __init__(self, rest):
super().__init__(rest)
self.elements = ElementService(rest)
def create(self, hierarchy):
""" Create a hierarchy in an existing dimension
:param hierarchy:
:return:
"""
raise NotImplementedError('not supported')
def get(self, dimension_name, hierarchy_name):
""" get hierarchy
:param dimension_name: name of the dimension
:param hierarchy_name: name of the hierarchy
:return:
"""
request = '/api/v1/Dimensions(\'{}\')/Hierarchies(\'{}\')'.format(
dimension_name, hierarchy_name)
response = self._rest.GET(request, '')
return response
def update(self, hierarchy):
""" update a hierarchy. Is a two step process.
1. Update Hierarchy
2. Update Element-Attributes
:param hierarchy: instance of TM1py.Hierarchy
:return:
"""
# Update Hierarchy
request = '/api/v1/Dimensions(\'{}\')/Hierarchies(\'{}\')'.format(
hierarchy.dimension_name, hierarchy.name)
response = self._rest.PATCH(request, hierarchy.body)
# Update Attributes
self._update_element_attributes(hierarchy=hierarchy)
return response
def exists(self, dimension_name, hierarchy_name):
"""
:param dimension_name:
:param hierarchy_name:
:return:
"""
request = '/api/v1/Dimensions(\'{}\')/Hierarchies(\'{}\')'.format(
dimension_name, hierarchy_name)
return super(HierarchyService, self).exists(request)
def delete(self, dimension_name, hierarchy_name):
request = '/api/v1/Dimensions(\'{}\')/Hierarchies(\'{}\')'.format(
dimension_name, hierarchy_name)
return self._rest.DELETE(request)
def _update_element_attributes(self, hierarchy):
""" Update the element sattributes of a hierarchy
:param hierarchy: Instance of TM1py.Hierarchy
:return:
"""
# get existing attributes first.
element_attributes = self.elements.get_element_attributes(
dimension_name=hierarchy.dimension_name,
hierarchy_name=hierarchy.name)
element_attribute_names = [ea.name for ea in element_attributes]
# write ElementAttributes that don't already exist !
for element_attribute in hierarchy.element_attributes:
if element_attribute not in element_attribute_names:
self.elements.create_element_attribute(
dimension_name=hierarchy.dimension_name,
hierarchy_name=hierarchy.name,
element_attribute=element_attribute)
# delete attributes that are determined to be removed
for element_attribute in element_attribute_names:
if element_attribute not in hierarchy.element_attributes:
self.elements.delete_element_attribute(
dimension_name=hierarchy.dimension_name,
hierarchy_name=hierarchy.name,
element_attribute=element_attribute)
class HierarchyService(ObjectService):
""" Service to handle Object Updates for TM1 Hierarchies
"""
# Tuple with TM1 Versions where Edges need to be created through TI, due to bug:
# https://www.ibm.com/developerworks/community/forums/html/topic?id=75f2b99e-6961-4c71-9364-1d5e1e083eff
EDGES_WORKAROUND_VERSIONS = ('11.0.002', '11.0.003', '11.1.000')
def __init__(self, rest):
super().__init__(rest)
self.subsets = SubsetService(rest)
self.elements = ElementService(rest)
def create(self, hierarchy):
""" Create a hierarchy in an existing dimension
:param hierarchy:
:return:
"""
request = '/api/v1/Dimensions(\'{}\')/Hierarchies'.format(hierarchy.dimension_name)
response = self._rest.POST(request, hierarchy.body)
return response
def get(self, dimension_name, hierarchy_name):
""" get hierarchy
:param dimension_name: name of the dimension
:param hierarchy_name: name of the hierarchy
:return:
"""
request = '/api/v1/Dimensions(\'{}\')/Hierarchies(\'{}\')?$expand=Edges,Elements,ElementAttributes,Subsets,DefaultMember'\
.format(dimension_name, hierarchy_name)
response = self._rest.GET(request, '')
return Hierarchy.from_dict(response.json())
def update(self, hierarchy):
""" update a hierarchy. It's a two step process:
1. Update Hierarchy
2. Update Element-Attributes
Function caters for Bug with Edge Creation:
https://www.ibm.com/developerworks/community/forums/html/topic?id=75f2b99e-6961-4c71-9364-1d5e1e083eff
:param hierarchy: instance of TM1py.Hierarchy
:return: list of responses
"""
# functions returns multiple responses
responses = list()
# 1. Update Hierarchy
request = '/api/v1/Dimensions(\'{}\')/Hierarchies(\'{}\')'.format(hierarchy.dimension_name, hierarchy.name)
# Workaround EDGES: Handle Issue, that Edges cant be created in one batch with the Hierarchy in certain versions
hierarchy_body = hierarchy.body_as_dict
if self.version[0:8] in self.EDGES_WORKAROUND_VERSIONS:
del hierarchy_body["Edges"]
responses.append(self._rest.PATCH(request, json.dumps(hierarchy_body)))
# 2. Update Attributes
responses.append(self._update_element_attributes(hierarchy=hierarchy))
# Workaround EDGES
if self.version[0:8] in self.EDGES_WORKAROUND_VERSIONS:
from TM1py.Services import ProcessService
process_service = ProcessService(self._rest)
ti_function = "HierarchyElementComponentAdd('{}', '{}', '{}', '{}', {});"
ti_statements = [ti_function.format(hierarchy.dimension_name, hierarchy.name,
edge[0],
edge[1],
hierarchy.edges[(edge[0], edge[1])])
for edge
in hierarchy.edges]
lines_prolog = ''.join(ti_statements)
responses.append(process_service.execute_ti_code(lines_prolog=lines_prolog))
return responses
def exists(self, dimension_name, hierarchy_name):
"""
:param dimension_name:
:param hierarchy_name:
:return:
"""
request = '/api/v1/Dimensions(\'{}\')/Hierarchies(\'{}\')'.format(dimension_name, hierarchy_name)
return self._exists(request)
def delete(self, dimension_name, hierarchy_name):
request = '/api/v1/Dimensions(\'{}\')/Hierarchies(\'{}\')'.format(dimension_name, hierarchy_name)
return self._rest.DELETE(request)
def get_hierarchy_summary(self, dimension_name, hierarchy_name):
hierarchy_properties = ("Elements", "Edges", "ElementAttributes", "Members", "Levels")
request = "/api/v1/Dimensions(\'{}\')/Hierarchies(\'{}\')?$expand=Edges/$count,Elements/$count," \
"ElementAttributes/$count,Members/$count,Levels/$count&$select=Cardinality"\
.format(dimension_name, hierarchy_name)
hierary_summary_raw = self._rest.GET(request).json()
return {hierarchy_property: hierary_summary_raw[hierarchy_property + "@odata.count"]
for hierarchy_property
in hierarchy_properties}
def _update_element_attributes(self, hierarchy):
""" Update the elementattributes of a hierarchy
:param hierarchy: Instance of TM1py.Hierarchy
:return:
"""
# get existing attributes first.
element_attributes = self.elements.get_element_attributes(dimension_name=hierarchy.dimension_name,
hierarchy_name=hierarchy.name)
element_attribute_names = [ea.name
for ea
in element_attributes]
# write ElementAttributes that don't already exist !
for element_attribute in hierarchy.element_attributes:
if element_attribute not in element_attribute_names:
self.elements.create_element_attribute(dimension_name=hierarchy.dimension_name,
hierarchy_name=hierarchy.name,
element_attribute=element_attribute)
# delete attributes that are determined to be removed
for element_attribute in element_attribute_names:
if element_attribute not in hierarchy.element_attributes:
self.elements.delete_element_attribute(dimension_name=hierarchy.dimension_name,
hierarchy_name=hierarchy.name,
element_attribute=element_attribute)
