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#Author: Shu Shi
#emaiL: shushi@research.att.com
import os
from toscalib.utils.yamlparser import load_yaml, simple_parse
from toscalib.templates.database import ToscaDB
from toscalib.types.node import NodeType
from toscalib.types.data import DataType
from toscalib.types.capability import CapabilityType
from toscalib.types.relationship import RelationshipType
from toscalib.templates.constant import *
from toscalib.templates.topology import ToscaTopology
from macpath import dirname
import logging
# _TRUE_VALUES = ('True', 'true', '1', 'yes')
class import_context(object):
def __init__(self):
self.curr_path = os.getcwd()
self.curr_file_name = ''
self.metadata = None
self.temp_name = None
self.extra_imports = []
def _dir_import(files_imported, dir_name, db=None, ctx=None):
if db is None:
db = ToscaDB()
if os.path.isdir(dir_name) is False:
logging.warning( 'Dir: '+ dir_name+ ' not exist! Loading failed!')
return db
for f in os.listdir(dir_name):
filename = os.path.join(dir_name, f)
if os.path.isfile(filename):
try:
db = _file_import(files_imported, filename, db)
except ValueError:
logging.error( 'Fail to import file: '+ filename)
continue
if os.path.isdir(filename):
try:
db = _dir_import(files_imported, filename, db)
except ValueError:
logging.error( 'Fail to import dir: '+ filename)
continue
return db
def _file_import(files_imported, filename, db=None, ctx=None):
logging.debug( 'Start to import file: '+ filename)
if db is None:
db = ToscaDB()
if ctx is None:
orig_import = True
ctx = import_context()
else:
orig_import = False
if filename == os.path.abspath(filename):
full_file_path = filename
else:
full_file_path = os.path.abspath(os.path.join(ctx.curr_path, filename))
if os.path.isfile(full_file_path) == False:
logging.debug( 'File: ' + filename + ' not exist! Import as extra import!')
ctx.extra_imports.append({filename:filename})
return db
if full_file_path in files_imported:
logging.debug( 'File: ' + filename + ' has been imported!')
return db
ctx.curr_path = os.path.dirname(full_file_path)
ctx.curr_file_name = os.path.basename(full_file_path)
parser = load_yaml(full_file_path)
ctx.extra_imports = []
# if parser.has_key(IMPORT):
if IMPORT in parser:
db = _parse_import(files_imported, parser[IMPORT], db, ctx)
# if parser.has_key(METADATA):
if METADATA in parser:
ctx.metadata = parser[METADATA]
# if parser.has_key(DATA_TYPE):
if DATA_TYPE in parser:
db = _parse_data_type(parser[DATA_TYPE], db, ctx)
# if parser.has_key(NODE_TYPE):
if NODE_TYPE in parser:
db = _parse_node_type(parser[NODE_TYPE], db, ctx)
# if parser.has_key(TOPOLOGY):
if TOPOLOGY in parser:
db = _parse_topology_template(parser[TOPOLOGY], db, ctx)
# if parser.has_key(CAPABILITY_TYPE):
if CAPABILITY_TYPE in parser:
db = _parse_capability_type(parser[CAPABILITY_TYPE], db, ctx)
# if parser.has_key(RELATIONSHIP_TYPE):
if RELATIONSHIP_TYPE in parser:
db = _parse_relationship_type(parser[RELATIONSHIP_TYPE], db, ctx)
if orig_import:
db._parse_objects()
files_imported.append(full_file_path)
logging.debug( 'File '+ filename+ ' imported!')
return db
def _single_template_file_import(filename, db=None, ctx=None):
logging.debug( 'Start to import file: '+ filename)
if db is None:
db = ToscaDB()
if ctx is None:
ctx = import_context()
if filename == os.path.abspath(filename):
full_file_path = filename
else:
full_file_path = os.path.abspath(os.path.join(ctx.curr_path, filename))
if os.path.isfile(full_file_path) == False:
logging.warning( 'File: ' +filename + ' not exist! Import failed!')
return db
ctx.curr_path = os.path.dirname(full_file_path)
ctx.curr_file_name = os.path.basename(full_file_path)
parser = load_yaml(full_file_path)
# if parser.has_key(IMPORT):
# db = _parse_import(files_imported, parser[IMPORT], db, ctx)
ctx.extra_imports = []
# if parser.has_key(IMPORT):
if IMPORT in parser:
db = _parse_import([], parser[IMPORT], db, ctx)
# if parser.has_key(METADATA):
if METADATA in parser:
ctx.metadata = parser[METADATA]
# if parser.has_key(DATA_TYPE):
if DATA_TYPE in parser:
db = _parse_data_type(parser[DATA_TYPE], db, ctx)
# if parser.has_key(NODE_TYPE):
if NODE_TYPE in parser:
db = _parse_node_type(parser[NODE_TYPE], db, ctx)
# if parser.has_key(TOPOLOGY):
if TOPOLOGY in parser:
db = _parse_topology_template(parser[TOPOLOGY], db, ctx)
# if parser.has_key(CAPABILITY_TYPE):
if CAPABILITY_TYPE in parser:
db = _parse_capability_type(parser[CAPABILITY_TYPE], db, ctx)
# if parser.has_key(RELATIONSHIP_TYPE):
if RELATIONSHIP_TYPE in parser:
db = _parse_relationship_type(parser[RELATIONSHIP_TYPE], db, ctx)
db._parse_objects()
logging.debug( 'File '+ filename+ ' imported!')
return db
def _yaml_str_import(yml_str, db=None, ctx=None):
parser = simple_parse(yml_str)
if ctx is None:
ctx = import_context()
ctx.extra_imports = []
# if parser.has_key(IMPORT):
if IMPORT in parser:
db = _parse_import([], parser[IMPORT], db, ctx)
# if parser.has_key(METADATA):
if METADATA in parser:
ctx.metadata = parser[METADATA]
# if parser.has_key(DATA_TYPE):
if DATA_TYPE in parser:
db = _parse_data_type(parser[DATA_TYPE], db, ctx)
# if parser.has_key(NODE_TYPE):
if NODE_TYPE in parser:
db = _parse_node_type(parser[NODE_TYPE], db, ctx)
# if parser.has_key(TOPOLOGY):
if TOPOLOGY in parser:
db = _parse_topology_template(parser[TOPOLOGY], db, ctx)
# if parser.has_key(CAPABILITY_TYPE):
if CAPABILITY_TYPE in parser:
db = _parse_capability_type(parser[CAPABILITY_TYPE], db, ctx)
# if parser.has_key(RELATIONSHIP_TYPE):
if RELATIONSHIP_TYPE in parser:
db = _parse_relationship_type(parser[RELATIONSHIP_TYPE], db, ctx)
db._parse_objects()
return db
def _parse_data_type(data_type_section, db, ctx):
if data_type_section is None:
return db
if db is None:
db = ToscaDB()
for data_type_name in data_type_section.keys():
db._import_data_type(DataType(data_type_name, data_type_section[data_type_name]))
return db
def _parse_node_type(node_type_section, db, ctx):
if node_type_section is None:
return db
if db is None:
db = ToscaDB()
for node_type_def_name in node_type_section.keys():
db._import_node_type(NodeType(node_type_def_name, node_type_section[node_type_def_name]))
return db
def _parse_capability_type(cap_type_section, db, ctx):
if cap_type_section is None:
return db
if db is None:
db = ToscaDB()
for cap_type_def_name in cap_type_section.keys():
db._import_capability_type(CapabilityType(cap_type_def_name, cap_type_section[cap_type_def_name]))
return db
def _parse_relationship_type(rel_type_section, db, ctx):
if rel_type_section is None:
return db
if db is None:
db = ToscaDB()
for rel_type_def_name in rel_type_section.keys():
db._import_relationship_type(RelationshipType(rel_type_def_name,rel_type_section[rel_type_def_name]))
return db
def _parse_topology_template(topology_section, db, ctx):
if topology_section is None:
return db
if db is None:
db = ToscaDB()
if ctx.metadata is None or ctx.metadata['template_name'] is None or ctx.metadata['template_name']=='':
template_key = ctx.curr_file_name
else:
template_key = ctx.metadata['template_name']
if template_key is None or template_key == '':
index = 0
while True:
# if db.TEMPLATES.has_key('template'+str(index)):
if 'template'+str(index) in db.TEMPLATES:
index+=1
continue
break
template_key = 'template'+str(index)
ctx.temp_name = template_key
new_topology = ToscaTopology(template_key, ctx.metadata, topology_section)
new_topology.extra_imports = ctx.extra_imports
db._import_template(new_topology)
return db
def _parse_requirement_name_and_value(content):
list_size = len(content.keys())
if list_size != 1:
logging.warning( 'Requirement section does not have exact one element: '+ list_size)
return
ck = list(content.keys())[0]
return ck, content[ck]
def _parse_import(file_imported, import_section, db, ctx):
if db is None:
db = ToscaDB()
if import_section is None:
return db
for new_file_sec in import_section:
# for new_file in new_file_sec.itervalues():
for new_file in iter(new_file_sec.values()):
curr_path_bk = ctx.curr_path
curr_filename_bk = ctx.curr_file_name
_file_import(file_imported, new_file, db, ctx)
ctx.curr_path = curr_path_bk
ctx.curr_file_name = curr_filename_bk
return db
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