def remove_deleted_rows(table, table_data, txn, schema, idl, validator_adapter,
parent=None):
parent_column = None
parent_table = None
if parent is not None:
references = schema.ovs_tables[table].references
for key, value in references.iteritems():
if value.relation == 'parent':
parent_column = key
parent_table = value.ref_table
break
# Find rows for deletion from the DB that are not in the declarative config
for row in idl.tables[table].rows.itervalues():
index = utils.row_to_index(row, table, schema, idl, parent)
if (parent_column is not None and
row.__getattr__(parent_column) != parent):
continue
# Routes are special case - only static routes can be deleted
if table == 'Route' and row.__getattr__('from') != 'static':
continue
if index not in table_data:
# Add to validator adapter for validation and deletion
validator_adapter.add_resource_op(REQUEST_TYPE_DELETE, row, table,
parent, parent_table)
def get_column_json(column,
row,
table,
schema,
idl,
uri,
selector=None,
depth=0,
depth_counter=0,
fetch_readonly=False,
manager=None):
reftable = schema.ovs_tables[table].references[column].ref_table
relation = schema.ovs_tables[table].references[column].relation
row = idl.tables[table].rows[row]
column_data = row.__getattr__(column)
data = None
if not depth:
if relation == OVSDB_SCHEMA_REFERENCE:
if isinstance(column_data, ovs.db.idl.Row):
data = utils.row_to_uri(column_data, reftable, schema, idl)
elif isinstance(column_data, list):
data = []
for item in column_data:
data.append(utils.row_to_uri(item, reftable, schema, idl))
elif isinstance(column_data, dict):
data = {}
for k, v in column_data.iteritems():
data[k] = utils.row_to_uri(v, reftable, schema, idl)
elif relation == OVSDB_SCHEMA_CHILD:
_max = schema.ovs_tables[table].references[column].n_max
if isinstance(column_data, ovs.db.idl.Row):
if _max == 1:
data = uri
else:
index = utils.row_to_index(column_data, reftable, schema,
idl)
data = uri + '/' + str(index)
elif isinstance(column_data, list):
data = []
if _max == 1 and len(column_data):
data = uri
else:
for item in column_data:
index = utils.row_to_index(item, reftable, schema, idl)
data.append(uri + '/' + str(index))
elif isinstance(column_data, dict):
data = {}
for k, v in column_data.iteritems():
data[k] = uri + '/' + str(k)
# GET with depth
else:
if isinstance(column_data, ovs.db.idl.Row):
if fetch_readonly and manager:
yield utils.fetch_readonly_columns(schema, table, idl, manager,
[column_data])
data = yield get_row_json(column_data.uuid, reftable, schema, idl,
uri, selector, depth, depth_counter)
elif isinstance(column_data, dict):
if fetch_readonly and manager:
yield utils.fetch_readonly_columns(schema, table, idl, manager,
column_data.values())
data = {}
for k, v in column_data.iteritems():
data[k] = yield get_row_json(v.uuid, reftable, schema, idl,
uri, selector, depth,
depth_counter)
elif isinstance(column_data, list):
if fetch_readonly and manager:
yield utils.fetch_readonly_columns(schema, table, idl, manager,
column_data)
data = []
for item in column_data:
result = yield get_row_json(item.uuid, reftable, schema, idl,
uri, selector, depth,
depth_counter)
data.append(result)
raise gen.Return(data)
def _get_row_data(row, table_name, schema, idl, index=None):
if index is None:
index = utils.row_to_index(row, table_name, schema, idl)
row_data = {}
# Routes are special case - only static routes are returned
if table_name == 'Route' and row.__getattr__('from') != 'static':
return
# Iterate over all columns in the row
table_schema = schema.ovs_tables[table_name]
for column_name in table_schema.config.keys():
column_data = row.__getattr__(column_name)
# Do not include empty columns
if column_data is None or column_data == {} or column_data == []:
continue
row_data[column_name] = column_data
# Iterate over all children (forward and backward references) in the row
for child_name in table_schema.children:
# Forward reference
# Two types of forward references exist
# - regular (List of uuid)
# - key/value type (Dict type)
children_data = {}
indexer = 0
if child_name in table_schema.references:
# Only include configurable children
if (table_schema.references[child_name].category
!= OVSDB_SCHEMA_CONFIG):
continue
column_data = row.__getattr__(child_name)
child_table_name = table_schema.references[child_name].ref_table
# Check kv_type references
keys = None
kv_type = table_schema.references[child_name].kv_type
if kv_type and isinstance(column_data, dict):
keys = column_data.keys()
column_data = column_data.values()
# Iterate through all items in column_data
count = 0
for item in column_data:
if kv_type:
kv_index = keys[count]
data = _get_row_data(
item, child_table_name, schema,
idl, kv_index)
children_data.update({keys[count]: data.values()[0]})
count = count + 1
else:
data = _get_row_data(item, child_table_name, schema, idl)
_indexes = schema.ovs_tables[child_table_name].indexes
if len(_indexes) == 1 and _indexes[0] == 'uuid':
indexer = indexer + 1
child_index = child_table_name + str(indexer)
data = {child_index: data.values()[0]}
children_data.update(data)
# Backward reference
else:
column_name = None
# Find the 'parent' name from child table (back referenced child)
# e.g. in Route table 'vrf' column is the 'parent' column
for name, column in (schema.ovs_tables[child_name].
references.iteritems()):
if column.relation == OVSDB_SCHEMA_PARENT:
# Found the parent column
column_name = name
break
# Iterate through entire child table to find those rows belonging
# to the same parent
for item in idl.tables[child_name].rows.itervalues():
# Get the parent row reference
ref = item.__getattr__(column_name)
# Parent reference is same as 'row' (row was passed to
#this function) this is now the child of 'row'
if ref.uuid == row.uuid:
data = _get_row_data(item, child_name, schema, idl)
if data is not None:
children_data.update(data)
if children_data:
row_data[child_name] = children_data
# Iterate through 'references' from table
for refname, refobj in table_schema.references.iteritems():
refdata = []
if (
refobj.relation == OVSDB_SCHEMA_REFERENCE
and refobj.category == OVSDB_SCHEMA_CONFIG
):
reflist = row.__getattr__(refname)
if len(reflist) == 0:
continue
ref_table_name = table_schema.references[refname].ref_table
for item in reflist:
key_index = utils.row_to_index(
item, ref_table_name, schema, idl)
refdata.append(key_index)
row_data[refname] = refdata
return {index: row_data}
def setup_row(rowdata, table_name, schema, idl, txn):
"""
set up rows recursively
"""
row_index = rowdata.keys()[0]
row_data = rowdata.values()[0]
table_schema = schema.ovs_tables[table_name]
idl_table = idl.tables[table_name]
# get row reference from table
_new = False
row = index_to_row(row_index, table_schema, idl_table)
if row is None:
row = txn.insert(idl.tables[table_name])
_new = True
# NOTE: populate configuration data
config_keys = table_schema.config.keys()
for key in config_keys:
# TODO: return error if trying to set an immutable column
# skip if trying to set an immutable column for an existing row
if not _new and table_schema.config[key].mutable is False:
continue
if key not in row_data:
# skip if it's a new row
if _new or row.__getattr__(key) is None:
continue
else:
# set the right empty value
value = utils.get_empty_by_basic_type(row.__getattr__(key))
else:
value = row_data[key]
row.__setattr__(key, value)
# NOTE: populate non-config index columns
if _new:
for key in table_schema.indexes:
if key is 'uuid':
continue
if key not in table_schema.config.keys():
row.__setattr__(key, row_data[key])
# NOTE: set up child references
for key in table_schema.children:
# NOTE: 'forward' type children
if key in table_schema.references:
child_table_name = table_schema.references[key].ref_table
# skip immutable column
if not _new and not table_schema.references[key].mutable:
continue
# set up empty reference list
if key not in row_data:
if _new or row.__getattr__(key) is None:
continue
else:
value = utils.get_empty_by_basic_type(row.__getattr__(key))
row.__setattr__(key, value)
else:
new_data = row_data[key]
# {key:UUID} type of reference check
kv_type = table_schema.references[key].kv_type
# if not a new row, delete non-existent child references
if not _new:
current_list = row.__getattr__(key)
if current_list:
if kv_type:
current_list = current_list.values()
delete_list = []
for item in current_list:
index = utils.row_to_index(item, child_table_name, schema, idl)
if index not in new_data:
delete_list.append(item)
if delete_list:
for item in delete_list:
_delete(item, child_table_name, schema, idl, txn)
# setup children
children = {}
for index, child_data in new_data.iteritems():
_child = setup_row({index:child_data}, child_table_name, schema, idl, txn)
children.update(_child)
# NOTE: If the child table doesn't have indexes, replace json index
# with row.uuid
if not schema.ovs_tables[child_table_name].index_columns:
for k,v in children.iteritems():
new_data[v.uuid] = new_data[k]
del new_data[k]
if kv_type:
if table_schema.references[key].kv_key_type.name == 'integer':
tmp = {}
for k,v in children.iteritems():
tmp[int(k)] = v
children = tmp
row.__setattr__(key, children)
else:
row.__setattr__(key, children.values())
# Backward reference
else:
# get list of all 'backward' references
column_name = None
for x, y in schema.ovs_tables[key].references.iteritems():
if y.relation == OVSDB_SCHEMA_PARENT:
column_name = x
break
# delete non-existent rows
# get list of all rows with same parent
if not _new:
current_list = []
for item in idl.tables[key].rows.itervalues():
parent = item.__getattr__(column_name)
if parent.uuid == row.uuid:
current_list.append(item)
new_data = None
if key in row_data:
new_data = row_data[key]
if current_list:
delete_list = []
if new_data is None:
delete_list = current_list
else:
for item in current_list:
index = utils.row_to_index(item,key, schema, idl)
if index not in new_data:
delete_list.append(item)
if delete_list:
_delete(delete_list, key, schema, idl, txn)
# set up children rows
if new_data is not None:
for x,y in new_data.iteritems():
child = setup_row({x:y}, key, schema, idl, txn)
# fill the parent reference column
child.values()[0].__setattr__(column_name, row)
return {row_index:row}
