mirror of https://github.com/OpenSPG/KAG
104 lines
3.2 KiB
Python
104 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2023 OpenSPG Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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# in compliance with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software distributed under the License
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# is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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# or implied.
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import json
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import logging
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from ollama import Client
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from kag.interface import LLMClient
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from tenacity import retry, stop_after_attempt
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# logging.basicConfig(level=logging.DEBUG)
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logger = logging.getLogger(__name__)
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@LLMClient.register("Ollama")
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@LLMClient.register("ollama")
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class OllamaClient(LLMClient):
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"""
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A client class for interacting with the Ollama API.
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This class provides methods to make synchronous requests to the Ollama API, handle model calls, and parse responses.
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"""
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def __init__(self, model: str, base_url: str):
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"""
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Initializes the OllamaClient instance.
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Args:
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model (str): The model to use for requests.
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base_url (str): The base URL for the Ollama API.
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"""
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self.model = model
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self.base_url = base_url
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self.param = {}
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self.client = Client(host=self.base_url)
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self.check()
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def sync_request(self, prompt, image=None):
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"""
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Makes a synchronous request to the Ollama API with the given prompt.
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Args:
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prompt: The prompt to send to the Ollama API.
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image: Optional image data to include in the request.
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Returns:
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str: The content of the response from the Ollama API.
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"""
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response = self.client.generate(model=self.model, prompt=prompt, stream=False)
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content = response["response"]
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content = content.replace("”", "”").replace("“", "“")
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content = content.replace("·", "")
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return content
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def __call__(self, prompt, image=None):
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"""
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Executes a model request when the object is called and returns the result.
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Parameters:
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prompt (str): The prompt provided to the model.
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Returns:
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str: The response content generated by the model.
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"""
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return self.sync_request(prompt, image)
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@retry(stop=stop_after_attempt(3))
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def call_with_json_parse(self, prompt):
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"""
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Calls the model and attempts to parse the response into JSON format.
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Parameters:
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prompt (str): The prompt provided to the model.
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Returns:
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Union[dict, str]: If the response is valid JSON, returns the parsed dictionary; otherwise, returns the original response.
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"""
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rsp = self.sync_request(prompt)
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_end = rsp.rfind("```")
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_start = rsp.find("```json")
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if _end != -1 and _start != -1:
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json_str = rsp[_start + len("```json") : _end].strip()
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else:
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json_str = rsp
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try:
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json_result = json.loads(json_str)
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except:
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return rsp
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return json_result
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