def get_local_dir_info_from_thing_node_id(
thing_node_id: str, ) -> Tuple[str, Optional[str]]:
dir_path = from_url_representation(thing_node_id)
top_dir = get_valid_top_dir(dir_path)
if top_dir is None or not os.path.isdir(dir_path):
return (dir_path, None)
return dir_path, top_dir
async def get_single_sink(sink_id: str) -> LocalFileStructureSink:
possible_sink = get_sink_by_id(sink_id)
if possible_sink is None:
raise HTTPException(
status_code=404,
detail="Could not find writable local file at path " +
from_url_representation(sink_id) +
" or path not in configured local_dirs",
)
return possible_sink
async def get_single_thingNode(
id: str, # pylint: disable=redefined-builtin
) -> StructureThingNode:
possible_thing_node = get_thing_node_by_id(id)
if possible_thing_node is None:
raise HTTPException(
status_code=404,
detail="Could not find directory at path " +
from_url_representation(id) +
" or path not in configured local_dirs",
)
return possible_thing_node
def get_local_file_by_id(
id: str, # pylint: disable=redefined-builtin
) -> Optional[LocalFile]:
"""Get a specific file by id
Rudimentarily checks for existence and returns None if local file could not be found
"""
local_file_path = from_url_representation(id)
top_dir = get_valid_top_dir(local_file_path)
if top_dir is None:
return None
local_file = local_file_from_path(local_file_path, top_dir=top_dir)
if local_file is None:
return None
if not (os.path.exists(local_file.path)
or os.path.exists(local_file.path + ".settings.json")):
return None
return local_file
def get_structure(parent_id: Optional[str] = None) -> StructureResponse:
"""Obtain structure for corresponding adapter web service endpoint
parent_id is a local path encoded via to_url_representation from the utils module of this
adapter, or None.
"""
local_root_dirs = local_file_adapter_config.local_dirs
if parent_id is None: # get root Nodes
return StructureResponse(
id="local-file-adapter",
name="Local File Adapter",
thingNodes=[
StructureThingNode(
id=to_url_representation(dir_path),
name=os.path.basename(dir_path),
parentId=None,
description="Root local file directory at " +
os.path.abspath(os.path.realpath(dir_path)),
) for dir_path in local_root_dirs
],
sources=[],
sinks=[],
)
# One level in fiel hierarchy
current_dir = from_url_representation(parent_id)
if not len(
[current_dir.startswith(root_dir)
for root_dir in local_root_dirs]) > 0:
raise AdapterHandlingException((
f"Requested local file dir {current_dir} not contained in configured "
f"root directories {str(local_root_dirs)}"))
local_files, dirs = get_local_files_and_dirs(current_dir,
walk_sub_dirs=False)
return StructureResponse(
id="local-file-adapter",
name="Local File Adapter",
thingNodes=[
StructureThingNode(
id=to_url_representation(dir_path),
name=os.path.basename(dir_path),
parentId=parent_id,
description="Local file directory at " +
os.path.abspath(os.path.realpath(dir_path)),
) for dir_path in dirs
],
sources=[
source_from_local_file(local_file) for local_file in local_files
if local_file_loadable(local_file)
],
sinks=[
sink_from_local_file(local_file) for local_file in local_files
if local_file_writable(local_file)
],
)