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620 lines
22 KiB
Python
620 lines
22 KiB
Python
"""
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# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"
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# you may not use this file except in compliance with the License.
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# 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
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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from abc import ABC, abstractmethod
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import numpy as np
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from paddleformers.generation import GenerationConfig
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from paddleformers.transformers import Llama3Tokenizer, LlamaTokenizer
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from fastdeploy import envs
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from fastdeploy.utils import data_processor_logger
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_SAMPLING_EPS = 1e-5
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class BaseDataProcessor(ABC):
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"""base class for data processor"""
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def __init__(self):
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"""
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Returns:
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None
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"""
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self.tokenizer = self._load_tokenizer()
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self.tokenizer.bos_token_id = self.tokenizer._convert_token_to_id(self.tokenizer.bos_token)
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self.tokenizer.cls_token_id = self.tokenizer._convert_token_to_id(self.tokenizer.cls_token)
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self.tokenizer.sep_token_id = self.tokenizer._convert_token_to_id(self.tokenizer.sep_token)
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self.tokenizer.eos_token_id = self.tokenizer._convert_token_to_id(self.tokenizer.eos_token)
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self.tokenizer.mask_token_id = self.tokenizer._convert_token_to_id(self.tokenizer.mask_token)
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data_processor_logger.info(
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(
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f"tokenizer information: bos_token is {self.tokenizer.bos_token}, {self.tokenizer.bos_token_id}, ",
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f"cls_token is {self.tokenizer.cls_token}, {self.tokenizer.cls_token_id}, "
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f"sep_token is {self.tokenizer.sep_token}, {self.tokenizer.sep_token_id}, "
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f"eos_token is {self.tokenizer.eos_token}, {self.tokenizer.eos_token_id}, "
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f"mask_token is {self.tokenizer.mask_token}, {self.tokenizer.mask_token_id}",
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)
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)
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def _apply_default_parameters(self, request):
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"""
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Apply default value for parameters in request
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"""
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def set_value(req, key, value):
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value = getattr(self.generation_config, key, value)
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if isinstance(req, dict):
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if key not in req:
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req[key] = value
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else:
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if req.get(key) is None:
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req.set(key, value)
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set_value(request, "top_p", 0.7)
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set_value(request, "temperature", 1.0)
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set_value(request, "repetition_penalty", 1.0)
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set_value(request, "frequency_penalty", 0.0)
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set_value(request, "presence_penalty", 0.0)
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return request
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@abstractmethod
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def process_request(self, request, **kwargs):
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"""
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Preprocess the request
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Args:
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request (Dict): may contain text and messages fields
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**kwargs: others
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Returns:
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bool: Whether preprocessing is successful
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str: error message
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"""
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raise NotImplementedError
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@abstractmethod
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def process_response(self, response_dict):
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"""
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Preprocess the response
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Args:
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response_dict (Dict): response for engine, contain ids fields
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Returns:
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Dict: response contain text fields
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"""
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raise NotImplementedError
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def text2ids(self, text, max_model_len=None):
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"""
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text to token ids
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Args:
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text (str): text
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Returns:
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List[int]: token ids list
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"""
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raise NotImplementedError
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def messages2ids(self, messages):
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"""
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Convert multi-turn messages into ID sequences.
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Args:
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messages (List[List[Dict[str, Any]]]): multi-turn messages.
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Returns:
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List[int]: ID sequences
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"""
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raise NotImplementedError
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def ids2tokens(self, token_id, task_id=None):
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"""
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token ids to strings
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Args:
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token_id (List[int]): token id
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task_id (str): task id
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Returns:
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List[str]: strings
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"""
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raise NotImplementedError
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@abstractmethod
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def _load_tokenizer(self):
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"""
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load tokenizer
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Returns:
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tokenizer (AutoTokenizer)
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"""
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raise NotImplementedError
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class DataProcessor(BaseDataProcessor):
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def __init__(self, model_name_or_path, reasoning_parser_obj=None):
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"""
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Initializes the DecodeStatus object.
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Args:
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model_name_or_path (str): The name or path of the pre-trained model to be loaded.
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Can also be a path to a directory containing the pre-trained model file.
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Returns:
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None.
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Raises:
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None.
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"""
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self.model_name_or_path = model_name_or_path
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self._init_config()
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self.decode_status = dict()
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self.tokenizer = self._load_tokenizer()
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data_processor_logger.info(
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f"tokenizer information: bos_token is {self.tokenizer.bos_token}, {self.tokenizer.bos_token_id}, \
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eos_token is {self.tokenizer.eos_token}, {self.tokenizer.eos_token_id} "
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)
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from paddleformers.trl.llm_utils import get_eos_token_id
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self.eos_token_ids = get_eos_token_id(self.tokenizer, self.generation_config)
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self.eos_token_id_len = len(self.eos_token_ids)
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self.pad_token_id = self.get_pad_id()
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self.reasoning_parser = None
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if reasoning_parser_obj:
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self.reasoning_parser = reasoning_parser_obj(self.tokenizer)
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self.tokenizer.pad_token_id = self.pad_token_id
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def _init_config(self):
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"""
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初始化配置，包括模型名称、使用Hugging Face Tokenizer等。
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Args:
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无参数，但是会从环境变量中获取一些配置信息。
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Returns:
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无返回值，直接修改了类的属性。
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Raises:
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无异常抛出。
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"""
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self.use_hf_tokenizer = int(envs.FD_USE_HF_TOKENIZER) == 1
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# Generation config
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try:
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self.generation_config = GenerationConfig.from_pretrained(self.model_name_or_path)
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except Exception as e:
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data_processor_logger.warning(
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f"Can't find generation config: {e}, so it will not use generation_config field in the model config"
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)
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self.generation_config = None
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def process_request(self, request, max_model_len=None, **kwargs):
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"""
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Preprocess the request
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Args:
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request (Dict): may contain text and messages fields
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Returns:
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bool: Whether preprocessing is successful
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str: error message
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"""
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request = self._apply_default_parameters(request)
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if request.get("eos_token_ids") is None or len(request.eos_token_ids) == 0:
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request.eos_token_ids = self.eos_token_ids
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stop_sequences = request.get("stop", [])
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if stop_sequences is not None and len(stop_sequences) != 0:
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stop_seqs, stop_seqs_len = self.update_stop_seq(stop_sequences)
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request.set("stop_token_ids", stop_seqs)
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request.set("stop_seqs_len", stop_seqs_len)
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if request.prompt_token_ids is None or len(request.prompt_token_ids) == 0:
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if request.prompt is not None:
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request.prompt_token_ids = self.text2ids(request.prompt, max_model_len)
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elif request.messages is not None:
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if self.tokenizer.chat_template is None:
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raise ValueError("This model does not support chat_template.")
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task = request.to_dict()
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task["enable_thinking"] = kwargs.get("enable_thinking", True)
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request.prompt_token_ids = self.messages2ids(task)
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else:
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raise ValueError(f"The request should have `input_ids`, `text` or `messages`: {request}.")
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if len(request.prompt_token_ids) == 0:
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raise ValueError("Invalid input: prompt_token_ids must be a non-empty sequence of token IDs")
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if request.get("max_tokens") is None:
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request.set(
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"max_tokens",
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max(1, max_model_len - len(request.prompt_token_ids)),
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)
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if request.get("temperature") < _SAMPLING_EPS:
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# zero temperature is equivalent to greedy sampling
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request.set("temperature", 1)
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if request.get("top_p") < _SAMPLING_EPS:
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request.set("top_p", _SAMPLING_EPS)
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data_processor_logger.info(f"Processed request {request}")
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return request
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def process_request_dict(self, request, max_model_len=None, **kwargs):
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"""
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Preprocess the request
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Args:
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request (Dict): may contain text and messages fields
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Returns:
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bool: Whether preprocessing is successful
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str: error message
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"""
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request = self._apply_default_parameters(request)
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if not request.get("eos_token_ids"):
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request["eos_token_ids"] = self.eos_token_ids
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# processing stop_sequences
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stop_sequences = request.get("stop", [])
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if stop_sequences:
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stop_seqs, stop_seqs_len = self.update_stop_seq(stop_sequences)
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request["stop_token_ids"] = stop_seqs
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request["stop_seqs_len"] = stop_seqs_len
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data_processor_logger.info(f"Processing request {request}")
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# processing prompt_token_ids
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if not request.get("prompt_token_ids"):
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if "prompt" in request:
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request["prompt_token_ids"] = self.text2ids(request["prompt"], max_model_len).tolist()
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elif "messages" in request:
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if self.tokenizer.chat_template is None:
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raise ValueError("This model does not support chat_template.")
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request["prompt_token_ids"] = self.messages2ids(request)
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else:
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raise ValueError(f"Request must contain 'prompt_token_ids', 'prompt', or 'messages': {request}")
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if len(request["prompt_token_ids"]) == 0:
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raise ValueError("Invalid input: prompt_token_ids must be a non-empty sequence of token IDs")
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if request.get("max_tokens") is None:
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request["max_tokens"] = max(1, max_model_len - len(request["prompt_token_ids"]))
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if request.get("temperature") < _SAMPLING_EPS:
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# zero temperature is equivalent to greedy sampling
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request["temperature"] = 1
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if request.get("top_p") < _SAMPLING_EPS:
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request["top_p"] = _SAMPLING_EPS
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data_processor_logger.info(f"Processed request {request}")
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return request
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def process_logprob_response(self, token_ids, **kwargs):
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full_text = self.tokenizer.decode(token_ids, **kwargs)
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return full_text
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def process_response(self, response_dict, **kwargs):
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"""
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Preprocess the response
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Args:
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response_dict (Dict): response for engine, contain ids fields
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Returns:
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Dict: response contain text fields
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"""
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req_id = response_dict.request_id
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token_ids = response_dict.outputs.token_ids
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if token_ids[-1] == self.tokenizer.eos_token_id:
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token_ids = token_ids[:-1]
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full_text = self.tokenizer.decode(token_ids)
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# 模型支持思考,并且支持思考
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if self.reasoning_parser:
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reasoning_content, text = self.reasoning_parser.extract_reasoning_content(full_text, response_dict)
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response_dict.outputs.text = text
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response_dict.outputs.reasoning_content = reasoning_content
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else:
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# 模型不支持思考,并且没单独设置enable_thinking为false
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response_dict.outputs.text = full_text
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data_processor_logger.info(f"req_id:{req_id}, token)ids: {token_ids}")
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return response_dict
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def process_response_dict_normal(self, response_dict, **kwargs):
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"""
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Preprocess the response
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Args:
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response_dict (Dict): response for engine, contain ids fields
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Returns:
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Dict: response contain text fields
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"""
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enable_thinking = kwargs.get("enable_thinking")
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token_ids = response_dict["outputs"]["token_ids"]
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is_end = response_dict["finished"]
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req_id = response_dict["request_id"]
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if is_end and len(token_ids) > 0 and not kwargs.get("include_stop_str_in_output"):
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if token_ids[-1] == self.tokenizer.eos_token_id:
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token_ids = token_ids[:-1]
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delta_text, _, previous_texts = self.ids2tokens(token_ids, req_id)
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if is_end:
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full_text = previous_texts + delta_text
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if enable_thinking and self.reasoning_parser:
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reasoning_content, text = self.reasoning_parser.extract_reasoning_content(full_text, response_dict)
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response_dict["outputs"]["text"] = text
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response_dict["outputs"]["reasoning_content"] = reasoning_content
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else:
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response_dict["outputs"]["text"] = full_text
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data_processor_logger.info(f"req_id:{req_id}, decode_status: {self.decode_status[req_id]}")
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del self.decode_status[req_id]
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return response_dict
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def process_response_dict_streaming(self, response_dict, **kwargs):
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"""
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Preprocess the response
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Args:
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response_dict (Dict): response for engine, contain ids fields
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Returns:
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Dict: response contain text fields
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"""
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enable_thinking = kwargs.get("enable_thinking")
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is_end = response_dict["finished"]
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req_id = response_dict["request_id"]
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token_ids = response_dict["outputs"]["token_ids"]
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if is_end and len(token_ids) > 0 and not kwargs.get("include_stop_str_in_output"):
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if token_ids[-1] == self.tokenizer.eos_token_id:
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token_ids = token_ids[:-1]
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delta_text, previous_token_ids, previous_texts = self.ids2tokens(token_ids, req_id)
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if enable_thinking and self.reasoning_parser:
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reasoning_content, text = self.reasoning_parser.extract_reasoning_content_streaming(
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previous_texts,
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previous_texts + delta_text,
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delta_text,
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previous_token_ids,
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previous_token_ids + token_ids,
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token_ids,
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)
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response_dict["outputs"]["text"] = text
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response_dict["outputs"]["reasoning_content"] = reasoning_content
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else:
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response_dict["outputs"]["text"] = delta_text
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if is_end:
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data_processor_logger.info(f"req_id:{req_id}, decode_status: {self.decode_status[req_id]}")
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del self.decode_status[req_id]
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return response_dict
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def process_response_dict(self, response_dict, **kwargs):
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"""
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Preprocess the response
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Args:
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response_dict (Dict): response for engine, contain ids fields
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Returns:
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Dict: response contain text fields
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"""
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enable_thinking = kwargs.pop("enable_thinking", True)
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if enable_thinking is None:
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enable_thinking = True
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stream = kwargs.get("stream", True)
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if stream:
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return self.process_response_dict_streaming(response_dict, enable_thinking=enable_thinking, **kwargs)
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else:
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return self.process_response_dict_normal(
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response_dict=response_dict,
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enable_thinking=enable_thinking,
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**kwargs,
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)
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def text2ids(self, text, max_model_len):
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"""
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text to token ids
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Args:
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text (str): text
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Returns:
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List[int]: token ids list
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"""
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if self.use_hf_tokenizer:
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tokens = self.tokenizer(
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text,
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return_tensors="np",
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padding=True,
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truncation=True,
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)
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else:
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text = [text] if isinstance(text, str) else text
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tokens = self.tokenizer(
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text,
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return_tensors="np",
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padding=True,
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truncation=True,
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max_length=max_model_len,
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add_special_tokens=False,
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)
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return tokens["input_ids"][0]
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def messages2ids(self, request):
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"""
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Convert multi-turn messages into ID sequences.
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Args:
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messages (List[List[Dict[str, Any]]]): multi-turn messages.
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Returns:
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List[int]: ID sequences
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"""
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spliced_message = self.tokenizer.apply_chat_template(
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request,
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tokenize=False,
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split_special_tokens=False,
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add_special_tokens=False,
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return_tensors="pd",
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)
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req_id = None
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tokens = self.tokenizer.tokenize(spliced_message)
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if isinstance(request, dict):
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req_id = request.get("request_id", None)
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token_ids = self.tokenizer.convert_tokens_to_ids(tokens)
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data_processor_logger.info(f"req_id:{req_id}, tokens:{tokens}, token_ids: {token_ids}")
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return token_ids
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def ids2tokens(self, token_id, task_id):
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"""
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token ids to strings
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Args:
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token_ids (List[int]): token ids
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task_id (str): task id
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Returns:
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List[str]: strings
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"""
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if self.use_hf_tokenizer:
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if task_id not in self.decode_status:
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# history token ids & history token strings & befer decode str
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self.decode_status[task_id] = [[], [], ""]
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previous_token_ids = self.decode_status[task_id][0]
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decode_str = self.tokenizer.batch_decode(
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[previous_token_ids + token_id],
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skip_special_tokens=True,
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clean_up_tokenization_spaces=False,
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)
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if isinstance(decode_str, list) and len(decode_str):
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new_str = decode_str[0].replace(self.decode_status[task_id][2], "", 1)
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||
self.decode_status[task_id][1].append(new_str)
|
||
self.decode_status[task_id][2] = decode_str[0]
|
||
else:
|
||
new_str = ""
|
||
self.decode_status[task_id][0] += token_id
|
||
return new_str
|
||
else:
|
||
if task_id not in self.decode_status:
|
||
# prefix offset & read offset & history token ids & history token strings
|
||
self.decode_status[task_id] = [0, 0, [], ""]
|
||
|
||
prefix_offset = self.decode_status[task_id][0]
|
||
read_offset = self.decode_status[task_id][1]
|
||
previous_token_ids = self.decode_status[task_id][2]
|
||
previous_texts = self.decode_status[task_id][3]
|
||
decode_str, prefix_offset, read_offset = self.tokenizer.decode_token(
|
||
previous_token_ids + token_id, prefix_offset, read_offset
|
||
)
|
||
self.decode_status[task_id][0] = prefix_offset
|
||
self.decode_status[task_id][1] = read_offset
|
||
self.decode_status[task_id][2] += token_id
|
||
self.decode_status[task_id][3] += decode_str
|
||
|
||
return decode_str, previous_token_ids, previous_texts
|
||
|
||
def _load_tokenizer(self):
|
||
"""
|
||
load tokenizer
|
||
|
||
Returns:
|
||
tokenizer (AutoTokenizer)
|
||
"""
|
||
if self.use_hf_tokenizer:
|
||
from transformers import AutoTokenizer
|
||
|
||
return AutoTokenizer.from_pretrained(self.model_name_or_path, use_fast=False)
|
||
else:
|
||
from paddleformers.transformers import AutoTokenizer
|
||
|
||
return AutoTokenizer.from_pretrained(self.model_name_or_path, padding_side="left", use_fast=True)
|
||
|
||
def clear_request_status(self, task_id):
|
||
"""
|
||
clear request status
|
||
|
||
Args:
|
||
task_id (str): task id
|
||
|
||
Returns:
|
||
results_all (str): all token strings
|
||
"""
|
||
results_all = ""
|
||
if task_id in self.decode_status:
|
||
if self.use_hf_tokenizer:
|
||
results_all = self.decode_status[task_id][2]
|
||
else:
|
||
results_all = "".join(self.decode_status[task_id][3])
|
||
del self.decode_status[task_id]
|
||
return results_all
|
||
|
||
def get_pad_id(self):
|
||
"""
|
||
get pad_token_id, if not pad_token_id, use eos_token
|
||
|
||
Returns:
|
||
int: pad_token_id
|
||
"""
|
||
if isinstance(self.tokenizer, (LlamaTokenizer, Llama3Tokenizer)) and not self.tokenizer.pad_token_id:
|
||
return self.tokenizer.eos_token
|
||
return self.tokenizer.pad_token_id
|
||
|
||
def pad_batch_data(
|
||
self,
|
||
insts,
|
||
pad_id=0,
|
||
return_seq_len=False,
|
||
return_array=True,
|
||
pad_style="right",
|
||
):
|
||
"""Pad the instances to the max sequence length in batch."""
|
||
if len(insts) == 0:
|
||
padded_insts = np.array([[]], dtype=np.int64) if return_array else [[]]
|
||
if return_seq_len:
|
||
seq_len = np.array([], dtype=np.int64) if return_array else []
|
||
return padded_insts, seq_len
|
||
return padded_insts
|
||
|
||
max_len = max(map(len, insts))
|
||
if pad_style == "left":
|
||
padded_insts = [[pad_id] * (max_len - len(inst)) + list(inst) for inst in insts]
|
||
else:
|
||
padded_insts = [list(inst) + [pad_id] * (max_len - len(inst)) for inst in insts]
|
||
if return_array:
|
||
padded_insts = np.array(padded_insts, dtype=np.int64).reshape([-1, max_len])
|
||
|
||
if return_seq_len:
|
||
seq_len = [len(inst) for inst in insts]
|
||
if return_array:
|
||
seq_len = np.array(seq_len, dtype=np.int64).reshape(-1, 1)
|
||
return padded_insts, seq_len
|
||
return padded_insts
|
||
|
||
def update_stop_seq(self, stop_sequences):
|
||
"""
|
||
Update stop sequences from request.
|
||
"""
|
||
stop_seqs = []
|
||
for seq in stop_sequences:
|
||
if seq != self.tokenizer.eos_token_id:
|
||
stop_seqs.append(self.tokenizer.convert_tokens_to_ids(self.tokenizer.tokenize(seq)))
|
||
stop_seqs, stop_seqs_len = self.pad_batch_data(stop_seqs, pad_id=-1, return_seq_len=True, return_array=False)
|
||
data_processor_logger.debug(f"processed stop_seqs: {stop_seqs}, {stop_seqs_len}")
|
||
return stop_seqs, stop_seqs_len
|