Update handler.py
Browse files- handler.py +141 -566
handler.py
CHANGED
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@@ -1,73 +1,57 @@
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# -*- coding: utf-8 -*-
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"""
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PULSE ECG Handler —
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used only in deterministic narrative rendering (not sent to the model).
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- Robust JSON parsing:
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1) direct JSON slice
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2) cleanup pseudo-JSON (_coerce_pseudo_json)
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3) regex-based field extraction from free text (_extract_fields_from_text)
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- Safe stop criteria, dynamic vision-size processor, logging hooks (optional HF Hub upload).
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"""
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import os
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import re
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import json
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import base64
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import math
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import hashlib
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import datetime
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from io import BytesIO
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from threading import Thread
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from typing import Optional, Union
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import torch
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from PIL import Image
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import requests
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#
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def _env_bool(name: str, default: bool = False) -> bool:
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v = os.getenv(name)
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if v is None:
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return default
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return str(v).strip().lower() in {"1", "true", "yes", "y", "on"}
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DEBUG = _env_bool("DEBUG", False)
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def dbg(*args, **kwargs):
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if DEBUG:
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print("[DEBUG]", *args, **kwargs)
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def warn(*args, **kwargs):
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print("[WARN]", *args, **kwargs)
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# ========= LLaVA & Transformers =========
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try:
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from llava.constants import
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from llava.conversation import conv_templates, SeparatorStyle
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from llava.model.builder import load_pretrained_model
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from llava.mm_utils import
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from llava.utils import disable_torch_init
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LLAVA_AVAILABLE = True
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except Exception as e:
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LLAVA_AVAILABLE = False
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-
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try:
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from transformers import TextIteratorStreamer, StoppingCriteria
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TRANSFORMERS_AVAILABLE = True
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except Exception as e:
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TRANSFORMERS_AVAILABLE = False
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#
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try:
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from huggingface_hub import HfApi, login
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HF_HUB_AVAILABLE = True
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@@ -82,13 +66,14 @@ if HF_HUB_AVAILABLE and "HF_TOKEN" in os.environ:
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api = HfApi()
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repo_name = os.environ.get("LOG_REPO", "")
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except Exception as e:
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-
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api
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LOGDIR = "./logs"
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os.makedirs(LOGDIR, exist_ok=True)
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#
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tokenizer = None
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model = None
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image_processor = None
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args = None
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model_initialized = False
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#
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STYLE_HINT = (
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"Write one concise narrative paragraph that covers rhythm, heart rate, cardiac axis, "
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"P waves and PR interval, QRS morphology and duration, ST segments, T waves, and QT/QTc. "
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@@ -105,26 +90,8 @@ STYLE_HINT = (
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"followed by a succinct, comma-separated summary of the key diagnoses."
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)
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#
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JSON_SCHEMA_HINT_EN = """
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Return ONLY a valid JSON object. Do not include comments, types, or extra text.
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If a value is unknown, use null (for numbers) or "" (for strings).
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{
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"heart_rate_bpm": 100,
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"rhythm": "Sinus rhythm",
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"qrs_axis": "Normal",
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"p_waves": "Normal",
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"pr_interval_ms": 160,
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"qrs_duration_ms": 90,
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"t_waves": "Normal",
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"qtc_ms": 420,
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"qtc_comment": "Normal",
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"additional_comments": ""
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}
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"""
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# ========= Utilities =========
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def _safe_upload(path: str):
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if api and repo_name and path and os.path.isfile(path):
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try:
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@@ -135,7 +102,7 @@ def _safe_upload(path: str):
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repo_type="dataset",
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)
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except Exception as e:
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def _conv_log_path() -> str:
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t = datetime.datetime.now()
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@@ -143,7 +110,11 @@ def _conv_log_path() -> str:
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def load_image_any(image_input: Union[str, dict]) -> Image.Image:
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"""
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"""
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if isinstance(image_input, str):
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s = image_input.strip()
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@@ -153,15 +124,24 @@ def load_image_any(image_input: Union[str, dict]) -> Image.Image:
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return Image.open(BytesIO(r.content)).convert("RGB")
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if os.path.exists(s):
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return Image.open(s).convert("RGB")
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if s.startswith("data:image"):
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s = s.split(",", 1)[1]
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raw = base64.b64decode(s)
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return Image.open(BytesIO(raw)).convert("RGB")
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if isinstance(image_input, dict) and "image" in image_input:
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return load_image_any(image_input["image"])
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raise ValueError("Unsupported image input format")
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def _normalize_whitespace(text: str) -> str:
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text = text.replace("\r\n", "\n").replace("\r", "\n")
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lines = [re.sub(r"[ \t]+", " ", ln.strip()) for ln in text.split("\n")]
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text = "\n".join(lines).strip()
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return text
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def _postprocess_min(text: str) -> str:
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return _normalize_whitespace(text)
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Coerce pseudo-JSON (e.g., 'int | none', 'none', Python booleans) into valid JSON string.
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"""
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if not isinstance(text, str):
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return ""
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s = text
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# Keep only the outermost JSON object if stray tokens are around
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i, j = s.find("{"), s.rfind("}")
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if i != -1 and j != -1 and j > i:
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s = s[i:j+1]
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# Remove type-like hints → replace with valid JSON placeholders
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s = re.sub(r':\s*int\s*\|\s*none', ': null', s, flags=re.I)
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s = re.sub(r':\s*string\s*\|\s*none', ': ""', s, flags=re.I)
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# Python/other tokens → JSON
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s = re.sub(r'\bNone\b|\bnone\b', 'null', s, flags=re.I)
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s = re.sub(r'\bTrue\b', 'true', s)
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s = re.sub(r'\bFalse\b', 'false', s)
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# Strip inline comments
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s = re.sub(r'//.*', '', s) # JS style
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s = re.sub(r'#.*', '', s) # Python style
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# Collapse repeated commas
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s = re.sub(r',\s*,+', ',', s)
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return s.strip()
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def _to_int_or_none(x: Optional[str]) -> Optional[int]:
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if x is None:
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return None
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x = x.strip()
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if not x:
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return None
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try:
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v = int(float(x))
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if math.isnan(v):
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return None
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return v
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except Exception:
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return None
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def _extract_fields_from_text(text: str) -> Dict[str, Any]:
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"""
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Extract fields from free text when model failed to return valid JSON.
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Missing numeric fields -> None; missing text -> "".
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"""
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if not isinstance(text, str):
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text = str(text or "")
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def rex(pattern, flags=re.I):
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m = re.search(pattern, text, flags)
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return m.group(1).strip() if m else None
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# bpm
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hr = rex(r"(?:heart\s*rate|hr)\s*[:=]?\s*(\d{1,3})\s*(?:bpm|beats?/min)?")
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if hr is None:
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hr = rex(r"\b(\d{2,3})\s*(?:bpm|beats?/min)\b")
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# PR/QRS/QTc ms
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pr = rex(r"\bPR\s*(?:interval)?\s*[:=]?\s*(\d{2,4})\s*ms\b")
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qrs = rex(r"\bQRS\s*(?:duration)?\s*[:=]?\s*(\d{2,4})\s*ms\b")
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qtc = rex(r"\bQTc?\s*[:=]?\s*(\d{2,4})\s*ms\b")
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# Axis
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axis = rex(r"\bQRS\s*axis\s*[:=]?\s*([+\-]?\d+°|normal|left|right|indeterminate)\b")
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# Rhythm
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rhythm = rex(r"\brhythm\s*[:=]?\s*([A-Za-z \-]+)")
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if rhythm is None:
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rhythm = rex(r"\b(sinus\s+(?:tachycardia|bradycardia|rhythm)|atrial fibrillation|afib|atrial flutter|junctional rhythm)\b")
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# P / T waves
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p_waves = rex(r"\bP\s*waves?\s*[:=]?\s*([A-Za-z0-9, \-]+)")
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t_waves = rex(r"\bT\s*waves?\s*[:=]?\s*([A-Za-z0-9, \-]+)")
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# QTc comment
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qtc_comment = rex(r"\bQTc\s*(?:comment|status)?\s*[:=]?\s*([A-Za-z \-]+)")
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# Additional
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additional = rex(r"(?:Additional\s*comments|Notes?)\s*[:\-]?\s*([\s\S]{0,300})")
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if not additional:
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additional = rex(r"\b(ST[- ](?:elevation|depression)|S1Q3T3|early repolarization|strain pattern)\b(?:[^\n\r]{0,120})")
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return {
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"heart_rate_bpm": _to_int_or_none(hr),
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"rhythm": (rhythm or "").strip(),
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"qrs_axis": (axis or "").strip(),
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"p_waves": (p_waves or "").strip(),
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"pr_interval_ms": _to_int_or_none(pr),
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"qrs_duration_ms": _to_int_or_none(qrs),
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"t_waves": (t_waves or "").strip(),
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"qtc_ms": _to_int_or_none(qtc),
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"qtc_comment": (qtc_comment or "").strip(),
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"additional_comments": (additional or "").strip(),
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}
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# ========= Vision helpers =========
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def get_vision_expected_size(m, default: int = 336) -> int:
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"""
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"""
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try:
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vt = m.get_vision_tower()
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vt_cfg = getattr(getattr(vt, "vision_tower", vt), "config", None)
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if vt_cfg is None:
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return default
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if getattr(vt_cfg, "image_size", None):
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return int(vt_cfg.image_size)
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vc = getattr(vt_cfg, "vision_config", None)
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if vc and getattr(vc, "image_size", None):
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return int(vc.image_size)
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except Exception as e:
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dbg(f"[get_vision_expected_size] fallback default={default} because: {e}")
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return default
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def force_processor_size(proc, size: int):
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"""Force processor resize/crop to target size safely."""
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try:
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if hasattr(proc, "size"):
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if isinstance(proc.size, dict):
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proc.size["shortest_edge"] = size
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else:
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try:
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proc.size.shortest_edge = size # type: ignore[attr-defined]
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except Exception:
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proc.size = {"shortest_edge": size}
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if hasattr(proc, "crop_size"):
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if isinstance(proc.crop_size, dict):
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proc.crop_size["height"] = size
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proc.crop_size["width"] = size
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else:
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try:
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proc.crop_size.height = size # type: ignore[attr-defined]
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proc.crop_size.width = size # type: ignore[attr-defined]
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except Exception:
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proc.crop_size = {"height": size, "width": size}
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dbg(f"[processor] forced size={size}")
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except Exception as e:
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warn(f"[processor] force size failed: {e}")
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# ========= Safe Stopper =========
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class SafeKeywordsStoppingCriteria(StoppingCriteria):
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def __init__(self, keyword: str, tokenizer):
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tok = tokenizer(keyword, add_special_tokens=False, return_tensors="pt").input_ids[0]
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self.kw_ids = tok
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def __call__(self, input_ids: torch.LongTensor, scores: torch.FloatTensor, **kwargs) -> bool:
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if input_ids is None or input_ids.shape[0] == 0:
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return False
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out = input_ids[0]
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n = self.kw_ids.shape[0]
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if out.shape[0] < n:
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return False
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tail = out[-n:]
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# ========= Core Session =========
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class InferenceDemo:
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def __init__(self, args, model_path, tokenizer_, model_, image_processor_, context_len_):
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if not LLAVA_AVAILABLE:
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self.tokenizer, self.model, self.image_processor, self.context_len = (
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tokenizer_, model_, image_processor_, context_len_
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)
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self.conv_mode = "llava_v1"
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self.conversation = conv_templates[self.conv_mode].copy()
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self.num_frames = getattr(args, "num_frames", 16)
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self.chatbot = InferenceDemo(args, model_path, tokenizer, model, image_processor, context_len)
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def get_chatbot(self, args, model_path, tokenizer, model, image_processor, context_len):
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self.init_if_needed(args, model_path, tokenizer, model, image_processor, context_len)
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self.chatbot.conversation = conv_templates[self.chatbot.conv_mode].copy()
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return self.chatbot
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chat_manager = ChatSessionManager()
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def _build_prompt_and_ids(chatbot, user_text: str, device: torch.device):
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inp = f"{DEFAULT_IMAGE_TOKEN}\n{user_text}"
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chatbot.conversation.append_message(chatbot.conversation.roles[0], inp)
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chatbot.conversation.append_message(chatbot.conversation.roles[1], None)
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prompt = chatbot.conversation.get_prompt()
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input_ids = tokenizer_image_token(
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prompt, chatbot.tokenizer, IMAGE_TOKEN_INDEX, return_tensors="pt"
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).unsqueeze(0).to(device)
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return prompt, input_ids
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# ========= Deterministic Renderers =========
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def render_ecg_table_en(d: Dict[str, Any]) -> str:
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lines = ["ECG ANALYSIS", "────────────"]
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if d.get("heart_rate_bpm") is not None:
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lines.append(f"Heart rate : {d['heart_rate_bpm']} beats/min")
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if "rhythm" in d:
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lines.append(f"Rhythm : {d['rhythm']}")
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if "qrs_axis" in d:
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lines.append(f"QRS axis : {d['qrs_axis']}")
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if "p_waves" in d:
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lines.append(f"P waves : {d['p_waves']}")
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if d.get("pr_interval_ms") is not None:
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lines.append(f"PR interval : {d['pr_interval_ms']} ms")
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if d.get("qrs_duration_ms") is not None:
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lines.append(f"QRS duration : {d['qrs_duration_ms']} ms")
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-
if "t_waves" in d:
|
| 389 |
-
lines.append(f"T waves : {d['t_waves']}")
|
| 390 |
-
if d.get("qtc_ms") is not None:
|
| 391 |
-
qtc_c = (d.get("qtc_comment") or "").strip() or "—"
|
| 392 |
-
lines.append(f"QTc : {qtc_c} ({d['qtc_ms']} ms)")
|
| 393 |
-
lines += ["", "Additional comments", "──────────────────", (d.get("additional_comments") or "").strip()]
|
| 394 |
-
return "\n".join(lines)
|
| 395 |
-
|
| 396 |
-
def render_ecg_narrative_en(d: Dict[str, Any]) -> str:
|
| 397 |
-
"""Deterministic narrative based on JSON + age_group + sex with 'Structured clinical impression' at the end."""
|
| 398 |
-
hr = d.get("heart_rate_bpm")
|
| 399 |
-
rhythm = d.get("rhythm")
|
| 400 |
-
axis = d.get("qrs_axis")
|
| 401 |
-
p = d.get("p_waves")
|
| 402 |
-
pr = d.get("pr_interval_ms")
|
| 403 |
-
qrs_dur = d.get("qrs_duration_ms")
|
| 404 |
-
t = d.get("t_waves")
|
| 405 |
-
qtc = d.get("qtc_ms")
|
| 406 |
-
extra = d.get("additional_comments")
|
| 407 |
-
age_group = d.get("patient_age_group") # "0-15" | "15-65" | "65+"
|
| 408 |
-
sex = d.get("patient_sex") # "male" | "female"
|
| 409 |
-
|
| 410 |
-
# thresholds by age group
|
| 411 |
-
if age_group == "0-15":
|
| 412 |
-
hr_low, hr_high = 70, 120
|
| 413 |
-
pr_low, pr_high = 110, 180
|
| 414 |
-
qrs_limit = 100
|
| 415 |
-
qtc_male, qtc_female = 460, 470
|
| 416 |
-
elif age_group == "65+":
|
| 417 |
-
hr_low, hr_high = 50, 100
|
| 418 |
-
pr_low, pr_high = 120, 220
|
| 419 |
-
qrs_limit = 120
|
| 420 |
-
qtc_male, qtc_female = 460, 480
|
| 421 |
-
else: # default 15-65
|
| 422 |
-
hr_low, hr_high = 60, 100
|
| 423 |
-
pr_low, pr_high = 120, 200
|
| 424 |
-
qrs_limit = 120
|
| 425 |
-
qtc_male, qtc_female = 450, 470
|
| 426 |
-
|
| 427 |
-
para = []
|
| 428 |
-
# patient context
|
| 429 |
-
if age_group and sex:
|
| 430 |
-
para.append(f"The patient is a {age_group} years {sex}.")
|
| 431 |
-
elif age_group:
|
| 432 |
-
para.append(f"The patient belongs to the {age_group} years age group.")
|
| 433 |
-
elif sex:
|
| 434 |
-
para.append(f"The patient is {sex}.")
|
| 435 |
-
|
| 436 |
-
# Rhythm with age-adjusted normalization for sinus tachycardia
|
| 437 |
-
if rhythm:
|
| 438 |
-
if rhythm.lower() == "sinus tachycardia" and isinstance(hr, int) and hr_low <= hr <= hr_high:
|
| 439 |
-
para.append(
|
| 440 |
-
f"The electrocardiogram shows sinus rhythm, normal for age. "
|
| 441 |
-
f"Although labelled as sinus tachycardia, the heart rate of {hr} bpm is within the normal range for this age group."
|
| 442 |
-
)
|
| 443 |
-
else:
|
| 444 |
-
para.append(f"The electrocardiogram shows {rhythm.lower()}.")
|
| 445 |
-
|
| 446 |
-
# Heart rate comment
|
| 447 |
-
if isinstance(hr, int):
|
| 448 |
-
if hr < hr_low:
|
| 449 |
-
hr_comment = "bradycardia"
|
| 450 |
-
elif hr > hr_high:
|
| 451 |
-
hr_comment = "tachycardia"
|
| 452 |
-
else:
|
| 453 |
-
hr_comment = "within normal range"
|
| 454 |
-
para.append(f"The heart rate is {hr} bpm ({hr_comment}).")
|
| 455 |
-
|
| 456 |
-
# Axis / P / PR / QRS / T / QTc
|
| 457 |
-
if axis:
|
| 458 |
-
para.append(f"The QRS axis is {axis.lower()}.")
|
| 459 |
-
if p:
|
| 460 |
-
para.append(f"P waves are {p.lower()}.")
|
| 461 |
-
if isinstance(pr, int):
|
| 462 |
-
if pr < pr_low:
|
| 463 |
-
pr_comment = "short PR interval"
|
| 464 |
-
elif pr > pr_high:
|
| 465 |
-
pr_comment = "prolonged PR interval"
|
| 466 |
-
else:
|
| 467 |
-
pr_comment = "within normal range"
|
| 468 |
-
para.append(f"PR interval is {pr} ms ({pr_comment}).")
|
| 469 |
-
if isinstance(qrs_dur, int):
|
| 470 |
-
qrs_comment = "normal QRS duration" if qrs_dur < qrs_limit else "prolonged QRS (possible conduction delay)"
|
| 471 |
-
para.append(f"QRS duration is {qrs_dur} ms ({qrs_comment}).")
|
| 472 |
-
if t:
|
| 473 |
-
para.append(f"T waves: {t}.")
|
| 474 |
-
if isinstance(qtc, int):
|
| 475 |
-
if sex == "male":
|
| 476 |
-
if qtc > qtc_male:
|
| 477 |
-
qtc_comment = "prolonged for male"
|
| 478 |
-
elif qtc < 350:
|
| 479 |
-
qtc_comment = "shortened"
|
| 480 |
-
else:
|
| 481 |
-
qtc_comment = "normal for male"
|
| 482 |
-
elif sex == "female":
|
| 483 |
-
if qtc > qtc_female:
|
| 484 |
-
qtc_comment = "prolonged for female"
|
| 485 |
-
elif qtc < 360:
|
| 486 |
-
qtc_comment = "shortened"
|
| 487 |
-
else:
|
| 488 |
-
qtc_comment = "normal for female"
|
| 489 |
-
else:
|
| 490 |
-
if qtc > max(qtc_male, qtc_female):
|
| 491 |
-
qtc_comment = "prolonged"
|
| 492 |
-
elif qtc < 350:
|
| 493 |
-
qtc_comment = "shortened"
|
| 494 |
-
else:
|
| 495 |
-
qtc_comment = "normal"
|
| 496 |
-
para.append(f"QTc is {qtc} ms ({qtc_comment}).")
|
| 497 |
-
|
| 498 |
-
if isinstance(extra, str) and extra.strip():
|
| 499 |
-
para.append(extra.strip())
|
| 500 |
-
|
| 501 |
-
paragraph = " ".join(para).strip()
|
| 502 |
-
|
| 503 |
-
# Structured clinical impression (deterministic summary)
|
| 504 |
-
sci_bits = []
|
| 505 |
-
if rhythm: sci_bits.append(rhythm)
|
| 506 |
-
if axis: sci_bits.append(f"QRS axis: {axis}")
|
| 507 |
-
if isinstance(pr, int): sci_bits.append(f"PR {pr} ms")
|
| 508 |
-
if isinstance(qrs_dur, int): sci_bits.append(f"QRS {qrs_dur} ms")
|
| 509 |
-
if isinstance(qtc, int): sci_bits.append(f"QTc {qtc} ms")
|
| 510 |
-
if isinstance(extra, str) and extra.strip(): sci_bits.append(extra.strip())
|
| 511 |
-
|
| 512 |
-
return paragraph + "\n\n" + "Structured clinical impression: " + ", ".join(sci_bits)
|
| 513 |
-
|
| 514 |
-
# ========= Generation =========
|
| 515 |
def generate_response(
|
| 516 |
message_text: str,
|
| 517 |
image_input,
|
|
@@ -521,98 +227,72 @@ def generate_response(
|
|
| 521 |
max_new_tokens: Optional[int] = None,
|
| 522 |
conv_mode_override: Optional[str] = None,
|
| 523 |
repetition_penalty: Optional[float] = None,
|
| 524 |
-
det_seed: Optional[int] = None,
|
| 525 |
-
output_mode: str = "narrative", # "narrative" | "json" | "report_en"
|
| 526 |
-
patient_age_group: Optional[str] = None,
|
| 527 |
-
patient_sex: Optional[str] = None,
|
| 528 |
):
|
| 529 |
if not (LLAVA_AVAILABLE and TRANSFORMERS_AVAILABLE):
|
| 530 |
return {"error": "Required libraries not available (llava/transformers)"}
|
| 531 |
if not message_text or image_input is None:
|
| 532 |
return {"error": "Both 'message' and 'image' are required"}
|
| 533 |
|
|
|
|
| 534 |
if temperature is None: temperature = 0.05
|
| 535 |
if top_p is None: top_p = 1.0
|
| 536 |
if max_new_tokens is None: max_new_tokens = 4096
|
| 537 |
-
if repetition_penalty is None: repetition_penalty = 1.0
|
| 538 |
-
|
| 539 |
-
# Deterministic settings for schema modes
|
| 540 |
-
if output_mode in ("json", "report_en"):
|
| 541 |
-
temperature = 0.0
|
| 542 |
-
top_p = 1.0
|
| 543 |
-
repetition_penalty = 1.0
|
| 544 |
-
max_new_tokens = min(int(max_new_tokens), 1024)
|
| 545 |
-
|
| 546 |
-
dbg(f"[gen] temp={temperature} top_p={top_p} max_new={max_new_tokens} rep={repetition_penalty} mode={output_mode}")
|
| 547 |
|
|
|
|
| 548 |
chatbot = chat_manager.get_chatbot(args, args.model_path, tokenizer, model, image_processor, context_len)
|
| 549 |
if conv_mode_override and conv_mode_override in conv_templates:
|
| 550 |
chatbot.conversation = conv_templates[conv_mode_override].copy()
|
| 551 |
|
| 552 |
-
#
|
| 553 |
try:
|
| 554 |
pil_img = load_image_any(image_input)
|
| 555 |
except Exception as e:
|
| 556 |
return {"error": f"Failed to load image: {e}"}
|
| 557 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 558 |
device = next(chatbot.model.parameters()).device
|
| 559 |
-
dtype = torch.float16
|
| 560 |
|
| 561 |
-
|
| 562 |
try:
|
| 563 |
-
|
| 564 |
-
|
| 565 |
-
image_tensor =
|
| 566 |
-
|
| 567 |
-
|
| 568 |
-
if image_tensor.ndim == 3:
|
| 569 |
-
image_tensor = image_tensor.unsqueeze(0)
|
| 570 |
-
image_tensor = image_tensor.to(device=device, dtype=dtype)
|
| 571 |
else:
|
| 572 |
-
|
| 573 |
-
|
| 574 |
-
|
| 575 |
-
|
| 576 |
-
|
| 577 |
-
|
| 578 |
-
|
| 579 |
-
|
| 580 |
-
|
| 581 |
-
|
| 582 |
-
if image_tensor.ndim == 3:
|
| 583 |
-
image_tensor = image_tensor.unsqueeze(0)
|
| 584 |
-
image_tensor = image_tensor.to(device=device, dtype=dtype)
|
| 585 |
-
except Exception:
|
| 586 |
-
from torchvision import transforms
|
| 587 |
-
from torchvision.transforms import InterpolationMode
|
| 588 |
-
expected_size = get_vision_expected_size(chatbot.model, default=336)
|
| 589 |
-
preprocess = transforms.Compose([
|
| 590 |
-
transforms.Resize(expected_size, interpolation=InterpolationMode.BICUBIC),
|
| 591 |
-
transforms.CenterCrop(expected_size),
|
| 592 |
-
transforms.ToTensor(),
|
| 593 |
-
transforms.Normalize(
|
| 594 |
-
mean=[0.48145466, 0.4578275, 0.40821073],
|
| 595 |
-
std=[0.26862954, 0.26130258, 0.27577711]
|
| 596 |
-
),
|
| 597 |
-
])
|
| 598 |
-
image_tensor = preprocess(pil_img).unsqueeze(0).to(device=device, dtype=dtype)
|
| 599 |
-
|
| 600 |
-
if image_tensor is None:
|
| 601 |
-
return {"error": "Image processing failed (no tensor produced)"}
|
| 602 |
-
|
| 603 |
-
# Build prompt
|
| 604 |
-
base_msg = (message_text or "").strip()
|
| 605 |
-
if output_mode in ("json", "report_en"):
|
| 606 |
-
msg = f"{base_msg}\n\n{JSON_SCHEMA_HINT_EN}"
|
| 607 |
-
else: # "narrative"
|
| 608 |
-
msg = f"{base_msg}\n\n{STYLE_HINT}"
|
| 609 |
-
|
| 610 |
-
dbg(f"[prompt] mode={output_mode}")
|
| 611 |
_, input_ids = _build_prompt_and_ids(chatbot, msg, device)
|
| 612 |
|
|
|
|
| 613 |
stop_str = chatbot.conversation.sep if chatbot.conversation.sep_style != SeparatorStyle.TWO else chatbot.conversation.sep2
|
| 614 |
stopping = SafeKeywordsStoppingCriteria(stop_str, chatbot.tokenizer)
|
| 615 |
|
|
|
|
| 616 |
if det_seed is not None:
|
| 617 |
try:
|
| 618 |
s = int(det_seed)
|
|
@@ -623,76 +303,60 @@ def generate_response(
|
|
| 623 |
except Exception:
|
| 624 |
pass
|
| 625 |
|
| 626 |
-
#
|
| 627 |
-
streamer = TextIteratorStreamer(
|
|
|
|
|
|
|
|
|
|
|
|
|
| 628 |
gen_kwargs = dict(
|
| 629 |
inputs=input_ids,
|
| 630 |
images=image_tensor,
|
| 631 |
streamer=streamer,
|
| 632 |
-
do_sample=
|
| 633 |
-
temperature=float(temperature),
|
| 634 |
-
top_p=float(top_p),
|
| 635 |
-
max_new_tokens=int(max_new_tokens),
|
| 636 |
-
repetition_penalty=float(repetition_penalty),
|
| 637 |
use_cache=False,
|
| 638 |
-
stopping_criteria=[stopping],
|
| 639 |
)
|
| 640 |
|
|
|
|
| 641 |
try:
|
| 642 |
t = Thread(target=chatbot.model.generate, kwargs=gen_kwargs)
|
| 643 |
t.start()
|
| 644 |
chunks = []
|
| 645 |
for piece in streamer:
|
| 646 |
chunks.append(piece)
|
| 647 |
-
text =
|
|
|
|
| 648 |
chatbot.conversation.messages[-1][-1] = text
|
| 649 |
except Exception as e:
|
| 650 |
return {"error": f"Generation failed: {e}"}
|
| 651 |
|
| 652 |
-
#
|
| 653 |
-
if output_mode == "narrative":
|
| 654 |
-
return {"status": "success", "response": text, "conversation_id": id(chatbot.conversation)}
|
| 655 |
-
|
| 656 |
-
# For json & report_en → parse once, with robust fallbacks
|
| 657 |
try:
|
| 658 |
-
|
| 659 |
-
|
| 660 |
-
|
| 661 |
-
|
| 662 |
-
|
| 663 |
-
|
| 664 |
-
|
| 665 |
-
try:
|
| 666 |
-
data = json.loads(cleaned)
|
| 667 |
-
data["_parse_mode"] = "cleaned"
|
| 668 |
-
except Exception:
|
| 669 |
-
# Last resort: extract with regex from free text
|
| 670 |
-
data = _extract_fields_from_text(text)
|
| 671 |
-
data["_parse_mode"] = "extracted"
|
| 672 |
-
|
| 673 |
-
# Inject patient meta (local only)
|
| 674 |
-
if patient_age_group:
|
| 675 |
-
data["patient_age_group"] = patient_age_group
|
| 676 |
-
if patient_sex:
|
| 677 |
-
data["patient_sex"] = patient_sex
|
| 678 |
-
|
| 679 |
-
if output_mode == "json":
|
| 680 |
-
return {"status": "success", "response": data, "conversation_id": id(chatbot.conversation)}
|
| 681 |
-
|
| 682 |
-
if output_mode == "report_en":
|
| 683 |
-
narrative = render_ecg_narrative_en(data)
|
| 684 |
-
table_txt = render_ecg_table_en(data)
|
| 685 |
-
return {
|
| 686 |
-
"status": "success",
|
| 687 |
-
"report": {"table_text": table_txt, "json": data, "narrative": narrative},
|
| 688 |
-
"conversation_id": id(chatbot.conversation)
|
| 689 |
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 690 |
|
| 691 |
-
# Fallback
|
| 692 |
return {"status": "success", "response": text, "conversation_id": id(chatbot.conversation)}
|
| 693 |
|
| 694 |
-
#
|
|
|
|
| 695 |
def query(payload: dict):
|
|
|
|
| 696 |
global model_initialized, tokenizer, model, image_processor, context_len, args
|
| 697 |
if not model_initialized:
|
| 698 |
if not initialize_model():
|
|
@@ -705,19 +369,14 @@ def query(payload: dict):
|
|
| 705 |
if not message.strip(): return {"error": "Missing 'message' text"}
|
| 706 |
if image is None: return {"error": "Missing 'image'. Use 'image', 'image_url', or 'img'."}
|
| 707 |
|
|
|
|
| 708 |
temperature = float(payload.get("temperature", 0.05))
|
| 709 |
top_p = float(payload.get("top_p", 1.0))
|
| 710 |
max_new_tokens = int(payload.get("max_output_tokens", payload.get("max_new_tokens", payload.get("max_tokens", 4096))))
|
| 711 |
-
repetition_penalty = float(payload.get("repetition_penalty", 1.0))
|
| 712 |
|
| 713 |
conv_mode_override = payload.get("conv_mode", None)
|
| 714 |
det_seed = payload.get("det_seed", None)
|
| 715 |
-
output_mode = payload.get("output_mode", "narrative")
|
| 716 |
-
|
| 717 |
-
# Optional patient meta (local use only)
|
| 718 |
-
patient_age_group = payload.get("patient_age_group")
|
| 719 |
-
patient_sex = payload.get("patient_sex")
|
| 720 |
-
|
| 721 |
if det_seed is not None:
|
| 722 |
try: det_seed = int(det_seed)
|
| 723 |
except Exception: det_seed = None
|
|
@@ -731,9 +390,6 @@ def query(payload: dict):
|
|
| 731 |
conv_mode_override=conv_mode_override,
|
| 732 |
repetition_penalty=repetition_penalty,
|
| 733 |
det_seed=det_seed,
|
| 734 |
-
output_mode=output_mode,
|
| 735 |
-
patient_age_group=patient_age_group,
|
| 736 |
-
patient_sex=patient_sex,
|
| 737 |
)
|
| 738 |
except Exception as e:
|
| 739 |
return {"error": f"Query failed: {e}"}
|
|
@@ -756,13 +412,14 @@ def get_model_info():
|
|
| 756 |
"device": str(next(model.parameters()).device) if model else "Unknown",
|
| 757 |
}
|
| 758 |
|
| 759 |
-
#
|
|
|
|
| 760 |
class _Args:
|
| 761 |
def __init__(self):
|
| 762 |
self.model_path = os.getenv("HF_MODEL_ID", "PULSE-ECG/PULSE-7B")
|
| 763 |
self.model_base = None
|
| 764 |
self.num_gpus = int(os.getenv("NUM_GPUS", "1"))
|
| 765 |
-
self.conv_mode = "llava_v1"
|
| 766 |
self.max_new_tokens = int(os.getenv("MAX_NEW_TOKENS", "4096"))
|
| 767 |
self.num_frames = 16
|
| 768 |
self.load_8bit = bool(int(os.getenv("LOAD_8BIT", "0")))
|
|
@@ -772,40 +429,22 @@ class _Args:
|
|
| 772 |
def initialize_model():
|
| 773 |
global tokenizer, model, image_processor, context_len, args
|
| 774 |
if not LLAVA_AVAILABLE:
|
| 775 |
-
|
| 776 |
return False
|
| 777 |
try:
|
| 778 |
args = _Args()
|
| 779 |
-
dbg(f"[init] HF_MODEL_ID={args.model_path} | LOAD_8BIT={args.load_8bit} | LOAD_4BIT={args.load_4bit}")
|
| 780 |
model_name = get_model_name_from_path(args.model_path)
|
| 781 |
-
|
| 782 |
tokenizer_, model_, image_processor_, context_len_ = load_pretrained_model(
|
| 783 |
args.model_path, args.model_base, model_name, args.load_8bit, args.load_4bit
|
| 784 |
)
|
| 785 |
-
|
| 786 |
-
|
| 787 |
try:
|
| 788 |
_ = next(model_.parameters()).device
|
| 789 |
except Exception:
|
| 790 |
if torch.cuda.is_available():
|
| 791 |
model_ = model_.to(torch.device("cuda"))
|
| 792 |
model_.eval()
|
| 793 |
-
dbg(f"[init] device={next(model_.parameters()).device}, cuda={torch.cuda.is_available()}")
|
| 794 |
|
| 795 |
-
expected_size = get_vision_expected_size(model_, default=336)
|
| 796 |
-
try:
|
| 797 |
-
if image_processor_ is None:
|
| 798 |
-
from transformers import AutoProcessor, CLIPImageProcessor
|
| 799 |
-
try:
|
| 800 |
-
image_processor_ = AutoProcessor.from_pretrained(args.model_path)
|
| 801 |
-
except Exception:
|
| 802 |
-
clip_id = "openai/clip-vit-large-patch14-336" if expected_size >= 336 else "openai/clip-vit-large-patch14"
|
| 803 |
-
image_processor_ = CLIPImageProcessor.from_pretrained(clip_id)
|
| 804 |
-
force_processor_size(image_processor_, expected_size)
|
| 805 |
-
except Exception as e_ip:
|
| 806 |
-
warn(f"[init] image_processor fallback/size set failed: {e_ip}")
|
| 807 |
-
|
| 808 |
-
# publish
|
| 809 |
globals()["tokenizer"] = tokenizer_
|
| 810 |
globals()["model"] = model_
|
| 811 |
globals()["image_processor"] = image_processor_
|
|
@@ -815,12 +454,13 @@ def initialize_model():
|
|
| 815 |
print("[init] model/tokenizer/image_processor loaded.")
|
| 816 |
return True
|
| 817 |
except Exception as e:
|
| 818 |
-
|
| 819 |
return False
|
| 820 |
|
| 821 |
-
#
|
|
|
|
| 822 |
class EndpointHandler:
|
| 823 |
-
"""Hugging Face Endpoint
|
| 824 |
def __init__(self, model_dir):
|
| 825 |
self.model_dir = model_dir
|
| 826 |
print(f"EndpointHandler initialized with model_dir: {model_dir}")
|
|
@@ -834,69 +474,4 @@ class EndpointHandler:
|
|
| 834 |
return get_model_info()
|
| 835 |
|
| 836 |
if __name__ == "__main__":
|
| 837 |
-
print("Handler ready (
|
| 838 |
-
|
| 839 |
-
# ========= Optional FastAPI Wrapper =========
|
| 840 |
-
try:
|
| 841 |
-
from fastapi import FastAPI
|
| 842 |
-
from pydantic import BaseModel
|
| 843 |
-
FASTAPI_AVAILABLE = True
|
| 844 |
-
except Exception as e:
|
| 845 |
-
FASTAPI_AVAILABLE = False
|
| 846 |
-
warn(f"fastapi/pydantic not available: {e}")
|
| 847 |
-
|
| 848 |
-
if FASTAPI_AVAILABLE:
|
| 849 |
-
app = FastAPI(title="PULSE ECG Handler API", version="1.4.0")
|
| 850 |
-
|
| 851 |
-
class QueryIn(BaseModel):
|
| 852 |
-
message: str | None = None
|
| 853 |
-
query: str | None = None
|
| 854 |
-
prompt: str | None = None
|
| 855 |
-
istem: str | None = None
|
| 856 |
-
image: str | Dict[str, Any] | None = None
|
| 857 |
-
image_url: str | None = None
|
| 858 |
-
img: str | None = None
|
| 859 |
-
temperature: float | None = None
|
| 860 |
-
top_p: float | None = None
|
| 861 |
-
max_output_tokens: int | None = None
|
| 862 |
-
max_new_tokens: int | None = None
|
| 863 |
-
max_tokens: int | None = None
|
| 864 |
-
repetition_penalty: float | None = None
|
| 865 |
-
conv_mode: str | None = None
|
| 866 |
-
det_seed: int | None = None
|
| 867 |
-
output_mode: str | None = None
|
| 868 |
-
patient_age_group: str | None = None
|
| 869 |
-
patient_sex: str | None = None
|
| 870 |
-
|
| 871 |
-
@app.on_event("startup")
|
| 872 |
-
async def _startup():
|
| 873 |
-
global model_initialized
|
| 874 |
-
if not model_initialized:
|
| 875 |
-
model_initialized = initialize_model()
|
| 876 |
-
print(f"[startup] model_initialized={model_initialized}")
|
| 877 |
-
|
| 878 |
-
@app.get("/health")
|
| 879 |
-
async def _health():
|
| 880 |
-
return health_check()
|
| 881 |
-
|
| 882 |
-
@app.get("/info")
|
| 883 |
-
async def _info():
|
| 884 |
-
return get_model_info()
|
| 885 |
-
|
| 886 |
-
@app.post("/query")
|
| 887 |
-
async def _query(payload: QueryIn):
|
| 888 |
-
return query({k: v for k, v in payload.dict().items() if v is not None})
|
| 889 |
-
|
| 890 |
-
@app.post("/analyze/json")
|
| 891 |
-
async def analyze_json(payload: QueryIn):
|
| 892 |
-
data = {k: v for k, v in payload.dict().items() if v is not None}
|
| 893 |
-
data["output_mode"] = "json"
|
| 894 |
-
return query(data)
|
| 895 |
-
|
| 896 |
-
@app.post("/analyze/report-en")
|
| 897 |
-
async def analyze_report_en(payload: QueryIn):
|
| 898 |
-
data = {k: v for k, v in payload.dict().items() if v is not None}
|
| 899 |
-
data["output_mode"] = "report_en"
|
| 900 |
-
return query(data)
|
| 901 |
-
else:
|
| 902 |
-
app = None # uvicorn handler:app would fail if FastAPI is not installed
|
|
|
|
| 1 |
# -*- coding: utf-8 -*-
|
| 2 |
"""
|
| 3 |
+
PULSE ECG Handler — Demo Parity + Style Hint
|
| 4 |
+
- Demo app.py ile aynı üretim ayarları:
|
| 5 |
+
do_sample=True, temperature=0.05, top_p=1.0, max_new_tokens=4096
|
| 6 |
+
- Stopping: konuşma ayırıcıda (conv.sep/sep2) güvenli token-eşleşmeli kriter
|
| 7 |
+
- Görsel tensörü: .half() ve model cihazında
|
| 8 |
+
- Streamer: TextIteratorStreamer (demo gibi), thread ile generate
|
| 9 |
+
- Seed/deterministic KAPALI (göndermezseniz); demo gibi stokastik
|
| 10 |
+
- STYLE_HINT: demo üslubuna (narratif + sonda tek satır structured impression) yaklaşmak için
|
| 11 |
+
- Post-process: YALNIZCA whitespace/biçim normalizasyonu (yönetim/öneri cümleleri korunur)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 12 |
"""
|
| 13 |
|
| 14 |
import os
|
| 15 |
import re
|
| 16 |
import json
|
| 17 |
import base64
|
|
|
|
| 18 |
import hashlib
|
| 19 |
import datetime
|
| 20 |
from io import BytesIO
|
| 21 |
from threading import Thread
|
| 22 |
+
from typing import Optional, Union
|
| 23 |
|
| 24 |
import torch
|
| 25 |
from PIL import Image
|
| 26 |
import requests
|
| 27 |
|
| 28 |
+
# ====== LLaVA & Transformers ======
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
|
|
| 29 |
try:
|
| 30 |
+
from llava.constants import (
|
| 31 |
+
IMAGE_TOKEN_INDEX,
|
| 32 |
+
DEFAULT_IMAGE_TOKEN,
|
| 33 |
+
)
|
| 34 |
from llava.conversation import conv_templates, SeparatorStyle
|
| 35 |
from llava.model.builder import load_pretrained_model
|
| 36 |
+
from llava.mm_utils import (
|
| 37 |
+
tokenizer_image_token,
|
| 38 |
+
process_images,
|
| 39 |
+
get_model_name_from_path,
|
| 40 |
+
)
|
| 41 |
from llava.utils import disable_torch_init
|
| 42 |
LLAVA_AVAILABLE = True
|
| 43 |
except Exception as e:
|
| 44 |
LLAVA_AVAILABLE = False
|
| 45 |
+
print(f"[WARN] LLaVA not available: {e}")
|
| 46 |
|
| 47 |
try:
|
| 48 |
from transformers import TextIteratorStreamer, StoppingCriteria
|
| 49 |
TRANSFORMERS_AVAILABLE = True
|
| 50 |
except Exception as e:
|
| 51 |
TRANSFORMERS_AVAILABLE = False
|
| 52 |
+
print(f"[WARN] transformers not available: {e}")
|
| 53 |
|
| 54 |
+
# ====== HF Hub logging (opsiyonel) ======
|
| 55 |
try:
|
| 56 |
from huggingface_hub import HfApi, login
|
| 57 |
HF_HUB_AVAILABLE = True
|
|
|
|
| 66 |
api = HfApi()
|
| 67 |
repo_name = os.environ.get("LOG_REPO", "")
|
| 68 |
except Exception as e:
|
| 69 |
+
print(f"[HF Hub] init failed: {e}")
|
| 70 |
+
api = None
|
| 71 |
+
repo_name = ""
|
| 72 |
|
| 73 |
LOGDIR = "./logs"
|
| 74 |
os.makedirs(LOGDIR, exist_ok=True)
|
| 75 |
|
| 76 |
+
# ====== Global State ======
|
| 77 |
tokenizer = None
|
| 78 |
model = None
|
| 79 |
image_processor = None
|
|
|
|
| 81 |
args = None
|
| 82 |
model_initialized = False
|
| 83 |
|
| 84 |
+
# ====== Style Hint (demo benzeri üslup) ======
|
| 85 |
STYLE_HINT = (
|
| 86 |
"Write one concise narrative paragraph that covers rhythm, heart rate, cardiac axis, "
|
| 87 |
"P waves and PR interval, QRS morphology and duration, ST segments, T waves, and QT/QTc. "
|
|
|
|
| 90 |
"followed by a succinct, comma-separated summary of the key diagnoses."
|
| 91 |
)
|
| 92 |
|
| 93 |
+
# ===================== Utilities =====================
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 94 |
|
|
|
|
| 95 |
def _safe_upload(path: str):
|
| 96 |
if api and repo_name and path and os.path.isfile(path):
|
| 97 |
try:
|
|
|
|
| 102 |
repo_type="dataset",
|
| 103 |
)
|
| 104 |
except Exception as e:
|
| 105 |
+
print(f"[upload] failed for {path}: {e}")
|
| 106 |
|
| 107 |
def _conv_log_path() -> str:
|
| 108 |
t = datetime.datetime.now()
|
|
|
|
| 110 |
|
| 111 |
def load_image_any(image_input: Union[str, dict]) -> Image.Image:
|
| 112 |
"""
|
| 113 |
+
Desteklenen:
|
| 114 |
+
- URL (http/https)
|
| 115 |
+
- yerel dosya yolu
|
| 116 |
+
- base64 (opsiyonel data URL prefix ile)
|
| 117 |
+
- {"image": <base64|dataurl>}
|
| 118 |
"""
|
| 119 |
if isinstance(image_input, str):
|
| 120 |
s = image_input.strip()
|
|
|
|
| 124 |
return Image.open(BytesIO(r.content)).convert("RGB")
|
| 125 |
if os.path.exists(s):
|
| 126 |
return Image.open(s).convert("RGB")
|
| 127 |
+
# base64 (dataurl olabilir)
|
| 128 |
if s.startswith("data:image"):
|
| 129 |
s = s.split(",", 1)[1]
|
| 130 |
raw = base64.b64decode(s)
|
| 131 |
return Image.open(BytesIO(raw)).convert("RGB")
|
| 132 |
+
|
| 133 |
if isinstance(image_input, dict) and "image" in image_input:
|
| 134 |
return load_image_any(image_input["image"])
|
| 135 |
+
|
| 136 |
raise ValueError("Unsupported image input format")
|
| 137 |
|
| 138 |
def _normalize_whitespace(text: str) -> str:
|
| 139 |
+
"""
|
| 140 |
+
Gereksiz boşluk/boş satırları toparlar:
|
| 141 |
+
- Satır başı/sonu boşluklarını siler
|
| 142 |
+
- Birden çok boşluğu tek boşluğa indirger
|
| 143 |
+
- 3+ boş satırı 1 boş satıra indirger
|
| 144 |
+
"""
|
| 145 |
text = text.replace("\r\n", "\n").replace("\r", "\n")
|
| 146 |
lines = [re.sub(r"[ \t]+", " ", ln.strip()) for ln in text.split("\n")]
|
| 147 |
text = "\n".join(lines).strip()
|
|
|
|
| 149 |
return text
|
| 150 |
|
| 151 |
def _postprocess_min(text: str) -> str:
|
| 152 |
+
# Yalnızca whitespace/biçim temizliği
|
| 153 |
return _normalize_whitespace(text)
|
| 154 |
|
| 155 |
+
# ====== Güvenli Stop Kriteri (conv separator) ======
|
| 156 |
+
class SafeKeywordsStoppingCriteria(StoppingCriteria):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
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|
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|
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|
|
|
|
|
|
|
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|
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|
|
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|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
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|
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|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 157 |
"""
|
| 158 |
+
conv.sep/sep2 bazlı token eşleşmesi; tensör → bool hatası yok.
|
| 159 |
"""
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
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|
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|
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|
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|
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|
|
|
|
|
| 160 |
def __init__(self, keyword: str, tokenizer):
|
| 161 |
+
self.tokenizer = tokenizer
|
| 162 |
tok = tokenizer(keyword, add_special_tokens=False, return_tensors="pt").input_ids[0]
|
| 163 |
+
self.kw_ids = tok # shape: (n,)
|
| 164 |
+
|
| 165 |
def __call__(self, input_ids: torch.LongTensor, scores: torch.FloatTensor, **kwargs) -> bool:
|
| 166 |
if input_ids is None or input_ids.shape[0] == 0:
|
| 167 |
return False
|
| 168 |
+
out = input_ids[0] # assume bsz=1
|
| 169 |
n = self.kw_ids.shape[0]
|
| 170 |
if out.shape[0] < n:
|
| 171 |
return False
|
| 172 |
tail = out[-n:]
|
| 173 |
+
kw = self.kw_ids.to(tail.device)
|
| 174 |
+
return torch.equal(tail, kw)
|
| 175 |
+
|
| 176 |
+
# ===================== Core Generation =====================
|
| 177 |
|
|
|
|
| 178 |
class InferenceDemo:
|
| 179 |
def __init__(self, args, model_path, tokenizer_, model_, image_processor_, context_len_):
|
| 180 |
if not LLAVA_AVAILABLE:
|
|
|
|
| 183 |
self.tokenizer, self.model, self.image_processor, self.context_len = (
|
| 184 |
tokenizer_, model_, image_processor_, context_len_
|
| 185 |
)
|
| 186 |
+
# Parite için sabit şablon
|
| 187 |
self.conv_mode = "llava_v1"
|
| 188 |
self.conversation = conv_templates[self.conv_mode].copy()
|
| 189 |
self.num_frames = getattr(args, "num_frames", 16)
|
|
|
|
| 200 |
self.chatbot = InferenceDemo(args, model_path, tokenizer, model, image_processor, context_len)
|
| 201 |
def get_chatbot(self, args, model_path, tokenizer, model, image_processor, context_len):
|
| 202 |
self.init_if_needed(args, model_path, tokenizer, model, image_processor, context_len)
|
| 203 |
+
# Her çağrıda taze template (demo gibi yeni tur)
|
| 204 |
self.chatbot.conversation = conv_templates[self.chatbot.conv_mode].copy()
|
| 205 |
return self.chatbot
|
| 206 |
|
| 207 |
chat_manager = ChatSessionManager()
|
| 208 |
|
| 209 |
def _build_prompt_and_ids(chatbot, user_text: str, device: torch.device):
|
| 210 |
+
# DEMO PARİTE: sarım yok, tek görüntü için tek image token
|
| 211 |
inp = f"{DEFAULT_IMAGE_TOKEN}\n{user_text}"
|
| 212 |
chatbot.conversation.append_message(chatbot.conversation.roles[0], inp)
|
| 213 |
chatbot.conversation.append_message(chatbot.conversation.roles[1], None)
|
| 214 |
prompt = chatbot.conversation.get_prompt()
|
| 215 |
+
|
| 216 |
input_ids = tokenizer_image_token(
|
| 217 |
prompt, chatbot.tokenizer, IMAGE_TOKEN_INDEX, return_tensors="pt"
|
| 218 |
).unsqueeze(0).to(device)
|
| 219 |
return prompt, input_ids
|
| 220 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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| 221 |
def generate_response(
|
| 222 |
message_text: str,
|
| 223 |
image_input,
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|
| 227 |
max_new_tokens: Optional[int] = None,
|
| 228 |
conv_mode_override: Optional[str] = None,
|
| 229 |
repetition_penalty: Optional[float] = None,
|
| 230 |
+
det_seed: Optional[int] = None, # None → stokastik (demo gibi)
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|
| 231 |
):
|
| 232 |
if not (LLAVA_AVAILABLE and TRANSFORMERS_AVAILABLE):
|
| 233 |
return {"error": "Required libraries not available (llava/transformers)"}
|
| 234 |
if not message_text or image_input is None:
|
| 235 |
return {"error": "Both 'message' and 'image' are required"}
|
| 236 |
|
| 237 |
+
# Varsayılanlar → demo
|
| 238 |
if temperature is None: temperature = 0.05
|
| 239 |
if top_p is None: top_p = 1.0
|
| 240 |
if max_new_tokens is None: max_new_tokens = 4096
|
| 241 |
+
if repetition_penalty is None: repetition_penalty = 1.0 # etkisiz
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| 242 |
|
| 243 |
+
# Chat session
|
| 244 |
chatbot = chat_manager.get_chatbot(args, args.model_path, tokenizer, model, image_processor, context_len)
|
| 245 |
if conv_mode_override and conv_mode_override in conv_templates:
|
| 246 |
chatbot.conversation = conv_templates[conv_mode_override].copy()
|
| 247 |
|
| 248 |
+
# Görüntü yükle
|
| 249 |
try:
|
| 250 |
pil_img = load_image_any(image_input)
|
| 251 |
except Exception as e:
|
| 252 |
return {"error": f"Failed to load image: {e}"}
|
| 253 |
|
| 254 |
+
# Log için hash+path
|
| 255 |
+
img_hash, img_path = "NA", None
|
| 256 |
+
try:
|
| 257 |
+
buf = BytesIO(); pil_img.save(buf, format="JPEG"); raw = buf.getvalue()
|
| 258 |
+
img_hash = hashlib.md5(raw).hexdigest()
|
| 259 |
+
t = datetime.datetime.now()
|
| 260 |
+
img_path = os.path.join(LOGDIR, "serve_images", f"{t.year:04d}-{t.month:02d}-{t.day:02d}", f"{img_hash}.jpg")
|
| 261 |
+
os.makedirs(os.path.dirname(img_path), exist_ok=True)
|
| 262 |
+
if not os.path.isfile(img_path):
|
| 263 |
+
pil_img.save(img_path)
|
| 264 |
+
except Exception as e:
|
| 265 |
+
print(f"[log] save image failed: {e}")
|
| 266 |
+
|
| 267 |
+
# Cihaz/dtype
|
| 268 |
device = next(chatbot.model.parameters()).device
|
| 269 |
+
dtype = torch.float16 # demo: half
|
| 270 |
|
| 271 |
+
# Görüntü ön-işleme → tensör
|
| 272 |
try:
|
| 273 |
+
processed = process_images([pil_img], chatbot.image_processor, chatbot.model.config)
|
| 274 |
+
if isinstance(processed, (list, tuple)) and len(processed) > 0:
|
| 275 |
+
image_tensor = processed[0]
|
| 276 |
+
elif isinstance(processed, torch.Tensor):
|
| 277 |
+
image_tensor = processed[0] if processed.ndim == 4 else processed
|
|
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|
|
|
|
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|
|
| 278 |
else:
|
| 279 |
+
return {"error": "Image processing returned empty"}
|
| 280 |
+
if image_tensor.ndim == 3:
|
| 281 |
+
image_tensor = image_tensor.unsqueeze(0) # (1,C,H,W)
|
| 282 |
+
image_tensor = image_tensor.to(device=device, dtype=dtype) # demo: half + device
|
| 283 |
+
except Exception as e:
|
| 284 |
+
return {"error": f"Image processing failed: {e}"}
|
| 285 |
+
|
| 286 |
+
# STYLE_HINT ekle ve prompt hazırla
|
| 287 |
+
msg = (message_text or "").strip()
|
| 288 |
+
msg = f"{msg}\n\n{STYLE_HINT}"
|
|
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|
| 289 |
_, input_ids = _build_prompt_and_ids(chatbot, msg, device)
|
| 290 |
|
| 291 |
+
# Stop string (conv separator) → güvenli kriter
|
| 292 |
stop_str = chatbot.conversation.sep if chatbot.conversation.sep_style != SeparatorStyle.TWO else chatbot.conversation.sep2
|
| 293 |
stopping = SafeKeywordsStoppingCriteria(stop_str, chatbot.tokenizer)
|
| 294 |
|
| 295 |
+
# Seed (gönderilmediyse stokastik → demo gibi)
|
| 296 |
if det_seed is not None:
|
| 297 |
try:
|
| 298 |
s = int(det_seed)
|
|
|
|
| 303 |
except Exception:
|
| 304 |
pass
|
| 305 |
|
| 306 |
+
# Streamer (demo gibi)
|
| 307 |
+
streamer = TextIteratorStreamer(
|
| 308 |
+
chatbot.tokenizer, skip_prompt=True, skip_special_tokens=True
|
| 309 |
+
)
|
| 310 |
+
|
| 311 |
+
# Generate kwargs — demo ayarları
|
| 312 |
gen_kwargs = dict(
|
| 313 |
inputs=input_ids,
|
| 314 |
images=image_tensor,
|
| 315 |
streamer=streamer,
|
| 316 |
+
do_sample=True, # DEMO
|
| 317 |
+
temperature=float(temperature), # DEMO default 0.05
|
| 318 |
+
top_p=float(top_p), # DEMO default 1.0
|
| 319 |
+
max_new_tokens=int(max_new_tokens), # DEMO slider
|
| 320 |
+
repetition_penalty=float(repetition_penalty), # default 1.0 → etkisiz
|
| 321 |
use_cache=False,
|
| 322 |
+
stopping_criteria=[stopping], # DEMO-benzeri durdurma
|
| 323 |
)
|
| 324 |
|
| 325 |
+
# Üretim (arka thread) + akışı topla
|
| 326 |
try:
|
| 327 |
t = Thread(target=chatbot.model.generate, kwargs=gen_kwargs)
|
| 328 |
t.start()
|
| 329 |
chunks = []
|
| 330 |
for piece in streamer:
|
| 331 |
chunks.append(piece)
|
| 332 |
+
text = "".join(chunks)
|
| 333 |
+
text = _postprocess_min(text) # yalnızca whitespace/format temizliği
|
| 334 |
chatbot.conversation.messages[-1][-1] = text
|
| 335 |
except Exception as e:
|
| 336 |
return {"error": f"Generation failed: {e}"}
|
| 337 |
|
| 338 |
+
# Log
|
|
|
|
|
|
|
|
|
|
|
|
|
| 339 |
try:
|
| 340 |
+
row = {
|
| 341 |
+
"time": datetime.datetime.now().isoformat(),
|
| 342 |
+
"type": "chat",
|
| 343 |
+
"model": "PULSE-7B",
|
| 344 |
+
"state": [(message_text, text)],
|
| 345 |
+
"image_hash": img_hash,
|
| 346 |
+
"image_path": img_path or "",
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
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|
|
|
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|
|
|
|
|
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|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 347 |
}
|
| 348 |
+
with open(_conv_log_path(), "a", encoding="utf-8") as f:
|
| 349 |
+
f.write(json.dumps(row, ensure_ascii=False) + "\n")
|
| 350 |
+
_safe_upload(_conv_log_path()); _safe_upload(img_path or "")
|
| 351 |
+
except Exception as e:
|
| 352 |
+
print(f"[log] failed: {e}")
|
| 353 |
|
|
|
|
| 354 |
return {"status": "success", "response": text, "conversation_id": id(chatbot.conversation)}
|
| 355 |
|
| 356 |
+
# ===================== Public API =====================
|
| 357 |
+
|
| 358 |
def query(payload: dict):
|
| 359 |
+
"""HF Endpoint entry (demo-like)."""
|
| 360 |
global model_initialized, tokenizer, model, image_processor, context_len, args
|
| 361 |
if not model_initialized:
|
| 362 |
if not initialize_model():
|
|
|
|
| 369 |
if not message.strip(): return {"error": "Missing 'message' text"}
|
| 370 |
if image is None: return {"error": "Missing 'image'. Use 'image', 'image_url', or 'img'."}
|
| 371 |
|
| 372 |
+
# Demo varsayılanları — payload override edebilir
|
| 373 |
temperature = float(payload.get("temperature", 0.05))
|
| 374 |
top_p = float(payload.get("top_p", 1.0))
|
| 375 |
max_new_tokens = int(payload.get("max_output_tokens", payload.get("max_new_tokens", payload.get("max_tokens", 4096))))
|
| 376 |
+
repetition_penalty = float(payload.get("repetition_penalty", 1.0)) # etkisiz default
|
| 377 |
|
| 378 |
conv_mode_override = payload.get("conv_mode", None)
|
| 379 |
det_seed = payload.get("det_seed", None)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 380 |
if det_seed is not None:
|
| 381 |
try: det_seed = int(det_seed)
|
| 382 |
except Exception: det_seed = None
|
|
|
|
| 390 |
conv_mode_override=conv_mode_override,
|
| 391 |
repetition_penalty=repetition_penalty,
|
| 392 |
det_seed=det_seed,
|
|
|
|
|
|
|
|
|
|
| 393 |
)
|
| 394 |
except Exception as e:
|
| 395 |
return {"error": f"Query failed: {e}"}
|
|
|
|
| 412 |
"device": str(next(model.parameters()).device) if model else "Unknown",
|
| 413 |
}
|
| 414 |
|
| 415 |
+
# ===================== Init & Session =====================
|
| 416 |
+
|
| 417 |
class _Args:
|
| 418 |
def __init__(self):
|
| 419 |
self.model_path = os.getenv("HF_MODEL_ID", "PULSE-ECG/PULSE-7B")
|
| 420 |
self.model_base = None
|
| 421 |
self.num_gpus = int(os.getenv("NUM_GPUS", "1"))
|
| 422 |
+
self.conv_mode = "llava_v1" # Parite için sabit
|
| 423 |
self.max_new_tokens = int(os.getenv("MAX_NEW_TOKENS", "4096"))
|
| 424 |
self.num_frames = 16
|
| 425 |
self.load_8bit = bool(int(os.getenv("LOAD_8BIT", "0")))
|
|
|
|
| 429 |
def initialize_model():
|
| 430 |
global tokenizer, model, image_processor, context_len, args
|
| 431 |
if not LLAVA_AVAILABLE:
|
| 432 |
+
print("[init] LLaVA not available; cannot init.")
|
| 433 |
return False
|
| 434 |
try:
|
| 435 |
args = _Args()
|
|
|
|
| 436 |
model_name = get_model_name_from_path(args.model_path)
|
|
|
|
| 437 |
tokenizer_, model_, image_processor_, context_len_ = load_pretrained_model(
|
| 438 |
args.model_path, args.model_base, model_name, args.load_8bit, args.load_4bit
|
| 439 |
)
|
| 440 |
+
# demo: model'ı genelde cuda’da çalıştırır
|
|
|
|
| 441 |
try:
|
| 442 |
_ = next(model_.parameters()).device
|
| 443 |
except Exception:
|
| 444 |
if torch.cuda.is_available():
|
| 445 |
model_ = model_.to(torch.device("cuda"))
|
| 446 |
model_.eval()
|
|
|
|
| 447 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 448 |
globals()["tokenizer"] = tokenizer_
|
| 449 |
globals()["model"] = model_
|
| 450 |
globals()["image_processor"] = image_processor_
|
|
|
|
| 454 |
print("[init] model/tokenizer/image_processor loaded.")
|
| 455 |
return True
|
| 456 |
except Exception as e:
|
| 457 |
+
print(f"[init] failed: {e}")
|
| 458 |
return False
|
| 459 |
|
| 460 |
+
# ===================== HF EndpointHandler =====================
|
| 461 |
+
|
| 462 |
class EndpointHandler:
|
| 463 |
+
"""Hugging Face Endpoint uyumlu sınıf"""
|
| 464 |
def __init__(self, model_dir):
|
| 465 |
self.model_dir = model_dir
|
| 466 |
print(f"EndpointHandler initialized with model_dir: {model_dir}")
|
|
|
|
| 474 |
return get_model_info()
|
| 475 |
|
| 476 |
if __name__ == "__main__":
|
| 477 |
+
print("Handler ready (Demo Parity + Style Hint + whitespace post-process). Use `EndpointHandler` or `query`.")
|
|
|
|
|
|
|
|
|
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