Files
FastDeploy/python/fastdeploy/utils/hub_model_server.py

134 lines
4.0 KiB
Python

# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
import requests
from typing import List
from fastdeploy.utils.hub_config import config
class ServerConnectionError(Exception):
def __init__(self, url: str):
self.url = url
def __str__(self):
tips = 'Can\'t connect to FastDeploy Model Server: {}'.format(self.url)
return tips
class ModelServer(object):
'''
FastDeploy server source
Args:
url(str) : Url of the server
timeout(int) : Request timeout
'''
def __init__(self, url: str, timeout: int=10):
self._url = url
self._timeout = timeout
def search_model(self, name: str, format: str=None,
version: str=None) -> List[dict]:
'''
Search model from model server.
Args:
name(str) : FastDeploy model name
format(str): FastDeploy model format
version(str) : FastDeploy model version
Return:
result(list): search results
'''
params = {}
params['name'] = name
if format:
params['format'] = format
if version:
params['version'] = version
result = self.request(path='fastdeploy_search', params=params)
if result['status'] == 0 and len(result['data']) > 0:
return result['data']
return None
def stat_model(self, name: str, format: str, version: str):
'''
Note a record when download a model for statistics.
Args:
name(str) : FastDeploy model name
format(str): FastDeploy model format
version(str) : FastDeploy model version
Return:
is_successful(bool): True if successful, False otherwise
'''
params = {}
params['name'] = name
params['format'] = format
params['version'] = version
params['from'] = 'fastdeploy'
try:
result = self.request(path='stat', params=params)
except Exception:
return False
if result['status'] == 0:
return True
else:
return False
def request(self, path: str, params: dict) -> dict:
'''Request server.'''
api = '{}/{}'.format(self._url, path)
try:
result = requests.get(api, params, timeout=self._timeout)
return result.json()
except requests.exceptions.ConnectionError as e:
raise ServerConnectionError(self._url)
def get_model_list(self):
'''
Get all pre-trained models information in dataset.
Return:
result(dict): key is category name, value is a list which contains models \
information such as name, format and version.
'''
api = '{}/{}'.format(self._url, 'fastdeploy_listmodels')
try:
result = requests.get(api, timeout=self._timeout)
return result.json()
except requests.exceptions.ConnectionError as e:
raise ServerConnectionError(self._url)
def is_connected(self):
return self.check(self._url)
@classmethod
def check(cls, url: str) -> bool:
'''
Check if the specified url is a valid model server
Args:
url(str) : Url to check
'''
try:
r = requests.get(url + '/search')
return r.status_code == 200
except:
return False
model_server = ModelServer(config.server)