def get_obj(self, key):
if key in self._obj_cache:
return self._obj_cache[key]
cache_path = os.path.join(self.cache_dir, key)
self.download_file(key, cache_path)
self._obj_cache[key] = util.read_msgpack(cache_path)
return self._obj_cache[key]
def __init__(self, **kwargs):
if "cache_dir" in kwargs:
self.cache_dir = kwargs["cache_dir"]
elif "local_path" in kwargs:
local_path_dir = os.path.dirname(
os.path.abspath(kwargs["local_path"]))
self.cache_dir = os.path.join(local_path_dir, "cache")
else:
raise ValueError(
"cache_dir must be specified (or inferred from local_path)")
util.mkdir_p(self.cache_dir)
if "local_path" in kwargs:
ctx_raw = util.read_msgpack(kwargs["local_path"])
self.ctx = _deserialize_raw_ctx(ctx_raw)
elif "obj" in kwargs:
self.ctx = kwargs["obj"]
elif "raw_obj" in kwargs:
ctx_raw = kwargs["raw_obj"]
self.ctx = _deserialize_raw_ctx(ctx_raw)
elif "s3_path":
local_ctx_path = os.path.join(self.cache_dir, "context.msgpack")
bucket, key = S3.deconstruct_s3_path(kwargs["s3_path"])
S3(bucket, client_config={}).download_file(key, local_ctx_path)
ctx_raw = util.read_msgpack(local_ctx_path)
self.ctx = _deserialize_raw_ctx(ctx_raw)
else:
raise ValueError("invalid context args: " + kwargs)
self.workload_id = kwargs.get("workload_id")
self.id = self.ctx["id"]
self.key = self.ctx["key"]
self.cortex_config = self.ctx["cortex_config"]
self.dataset_version = self.ctx["dataset_version"]
self.root = self.ctx["root"]
self.raw_dataset = self.ctx["raw_dataset"]
self.status_prefix = self.ctx["status_prefix"]
self.app = self.ctx["app"]
self.environment = self.ctx["environment"]
self.python_packages = self.ctx["python_packages"]
self.raw_columns = self.ctx["raw_columns"]
self.transformed_columns = self.ctx["transformed_columns"]
self.transformers = self.ctx["transformers"]
self.aggregators = self.ctx["aggregators"]
self.aggregates = self.ctx["aggregates"]
self.constants = self.ctx["constants"]
self.models = self.ctx["models"]
self.apis = self.ctx["apis"]
self.training_datasets = {
k: v["dataset"]
for k, v in self.models.items()
}
self.api_version = self.cortex_config["api_version"]
if "local_storage_path" in kwargs:
self.storage = LocalStorage(base_dir=kwargs["local_storage_path"])
else:
self.storage = S3(
bucket=self.cortex_config["bucket"],
region=self.cortex_config["region"],
client_config={},
)
if self.api_version != consts.CORTEX_VERSION:
raise ValueError(
"API version mismatch (Context: {}, Image: {})".format(
self.api_version, consts.CORTEX_VERSION))
self.columns = util.merge_dicts_overwrite(
self.raw_columns,
self.transformed_columns # self.aggregates
)
self.values = util.merge_dicts_overwrite(self.aggregates,
self.constants)
self.raw_column_names = list(self.raw_columns.keys())
self.transformed_column_names = list(self.transformed_columns.keys())
self.column_names = list(self.columns.keys())
# Internal caches
self._transformer_impls = {}
self._aggregator_impls = {}
self._model_impls = {}
# This affects Tensorflow S3 access
os.environ["AWS_REGION"] = self.cortex_config.get("region", "")
# Id map
self.pp_id_map = ResourceMap(self.python_packages)
self.rf_id_map = ResourceMap(self.raw_columns)
self.ag_id_map = ResourceMap(self.aggregates)
self.tf_id_map = ResourceMap(self.transformed_columns)
self.td_id_map = ResourceMap(self.training_datasets)
self.models_id_map = ResourceMap(self.models)
self.apis_id_map = ResourceMap(self.apis)
self.constants_id_map = ResourceMap(self.constants)
self.id_map = util.merge_dicts_overwrite(
self.pp_id_map,
self.rf_id_map,
self.ag_id_map,
self.tf_id_map,
self.td_id_map,
self.models_id_map,
self.apis_id_map,
self.constants_id_map,
)
def get_obj(self, key):
cache_path = os.path.join(self.cache_dir, key)
self.download_file(key, cache_path)
return util.read_msgpack(cache_path)