def _get_target_path(self, target):
bundle_link_url = self._bundle_model.get_bundle_metadata(
[target.bundle_uuid], "link_url").get(target.bundle_uuid)
if bundle_link_url:
bundle_link_url = self._transform_link_path(bundle_link_url)
bundle_path = bundle_link_url or self._bundle_store.get_bundle_location(
target.bundle_uuid)
try:
path = download_util.get_target_path(bundle_path, target)
return path
except download_util.PathException as e:
raise UsageError(str(e))
def _get_target_path(self, target):
bundle_link_url = self._bundle_model.get_bundle_metadata(
[target.bundle_uuid], "link_url").get(target.bundle_uuid)
if bundle_link_url:
# If bundle_link_url points to a locally mounted volume, call _transform_link_path
# to get the actual path where it can be accessed.
bundle_link_url = self._transform_link_path(bundle_link_url)
bundle_path = bundle_link_url or self._bundle_store.get_bundle_location(
target.bundle_uuid)
try:
path = download_util.get_target_path(bundle_path, target)
return path
except download_util.PathException as e:
raise UsageError(str(e))
def _threaded_read(self, run_state, path, stream_fn, reply_fn):
"""
Given a run state, a path, a stream function and a reply function,
- Computes the real filesystem path to the path in the bundle
- In case of error, invokes reply_fn with an http error
- Otherwise starts a thread calling stream_fn on the computed final path
"""
try:
final_path = get_target_path(run_state.bundle_path,
run_state.bundle['uuid'], path)
except PathException as e:
reply_fn((http.client.NOT_FOUND, str(e)), None, None)
read_thread = threading.Thread(target=stream_fn, args=[final_path])
read_thread.start()
self.read_threads.append(read_thread)
def _get_target_path(self, target):
bundle_path = self._bundle_store.get_bundle_location(target.bundle_uuid)
try:
return download_util.get_target_path(bundle_path, target)
except download_util.PathException as e:
raise UsageError(str(e))