628 lines
20 KiB
Python
628 lines
20 KiB
Python
"""
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图谱相关API路由
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采用项目上下文机制，服务端持久化状态
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"""
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import os
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import traceback
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import threading
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from flask import request, jsonify
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from . import graph_bp
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from ..config import Config
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from ..services.ontology_generator import OntologyGenerator
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from ..services.graph_builder import GraphBuilderService
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from ..services.llm_graph_builder import LLMGraphBuilderService
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from ..services.text_processor import TextProcessor
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from ..utils.file_parser import FileParser
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from ..utils.logger import get_logger
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from ..models.task import TaskManager, TaskStatus
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from ..models.project import ProjectManager, ProjectStatus
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# 获取日志器
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logger = get_logger('mirofish.api')
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def allowed_file(filename: str) -> bool:
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"""检查文件扩展名是否允许"""
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if not filename or '.' not in filename:
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return False
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ext = os.path.splitext(filename)[1].lower().lstrip('.')
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return ext in Config.ALLOWED_EXTENSIONS
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# ============== 项目管理接口 ==============
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@graph_bp.route('/project/<project_id>', methods=['GET'])
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def get_project(project_id: str):
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"""
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获取项目详情
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"""
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project = ProjectManager.get_project(project_id)
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if not project:
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return jsonify({
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"success": False,
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"error": f"Project not found: {project_id}"
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}), 404
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return jsonify({
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"success": True,
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"data": project.to_dict()
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})
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@graph_bp.route('/project/list', methods=['GET'])
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def list_projects():
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"""
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列出所有项目
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"""
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limit = request.args.get('limit', 50, type=int)
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projects = ProjectManager.list_projects(limit=limit)
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return jsonify({
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"success": True,
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"data": [p.to_dict() for p in projects],
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"count": len(projects)
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})
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@graph_bp.route('/project/<project_id>', methods=['DELETE'])
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def delete_project(project_id: str):
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"""
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删除项目
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"""
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success = ProjectManager.delete_project(project_id)
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if not success:
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return jsonify({
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"success": False,
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"error": f"Project not found or delete failed: {project_id}"
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}), 404
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return jsonify({
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"success": True,
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"message": f"Project deleted: {project_id}"
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})
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@graph_bp.route('/project/<project_id>/reset', methods=['POST'])
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def reset_project(project_id: str):
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"""
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重置项目状态（用于重新构建图谱）
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"""
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project = ProjectManager.get_project(project_id)
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if not project:
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return jsonify({
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"success": False,
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"error": f"Project not found: {project_id}"
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}), 404
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# 重置到本体已生成状态
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if project.ontology:
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project.status = ProjectStatus.ONTOLOGY_GENERATED
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else:
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project.status = ProjectStatus.CREATED
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project.graph_id = None
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project.graph_build_task_id = None
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project.error = None
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ProjectManager.save_project(project)
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return jsonify({
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"success": True,
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"message": f"Project reset: {project_id}",
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"data": project.to_dict()
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})
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# ============== 接口1：上传文件并生成本体 ==============
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@graph_bp.route('/ontology/generate', methods=['POST'])
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def generate_ontology():
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"""
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接口1：上传文件，分析生成本体定义
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请求方式：multipart/form-data
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参数：
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files: 上传的文件（PDF/MD/TXT），可多个
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simulation_requirement: 模拟需求描述（必填）
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project_name: 项目名称（可选）
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additional_context: 额外说明（可选）
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返回：
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{
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"success": true,
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"data": {
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"project_id": "proj_xxxx",
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"ontology": {
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"entity_types": [...],
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"edge_types": [...],
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"analysis_summary": "..."
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},
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"files": [...],
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"total_text_length": 12345
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}
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}
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"""
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try:
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logger.info("=== 开始生成本体定义 ===")
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# 获取参数
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simulation_requirement = request.form.get('simulation_requirement', '')
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project_name = request.form.get('project_name', 'Unnamed Project')
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additional_context = request.form.get('additional_context', '')
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logger.debug(f"项目名称: {project_name}")
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logger.debug(f"模拟需求: {simulation_requirement[:100]}...")
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if not simulation_requirement:
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return jsonify({
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"success": False,
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"error": "Please provide simulation_requirement"
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}), 400
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# 获取上传的文件
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uploaded_files = request.files.getlist('files')
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if not uploaded_files or all(not f.filename for f in uploaded_files):
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return jsonify({
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"success": False,
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"error": "Please upload at least one document file"
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}), 400
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# 创建项目
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project = ProjectManager.create_project(name=project_name)
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project.simulation_requirement = simulation_requirement
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logger.info(f"创建项目: {project.project_id}")
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# 保存文件并提取文本
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document_texts = []
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all_text = ""
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for file in uploaded_files:
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if file and file.filename and allowed_file(file.filename):
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# 保存文件到项目目录
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file_info = ProjectManager.save_file_to_project(
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project.project_id,
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file,
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file.filename
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)
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project.files.append({
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"filename": file_info["original_filename"],
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"size": file_info["size"]
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})
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# 提取文本
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text = FileParser.extract_text(file_info["path"])
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text = TextProcessor.preprocess_text(text)
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document_texts.append(text)
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all_text += f"\n\n=== {file_info['original_filename']} ===\n{text}"
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if not document_texts:
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ProjectManager.delete_project(project.project_id)
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return jsonify({
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"success": False,
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"error": "No documents were processed successfully, please check file format"
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}), 400
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# 保存提取的文本
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project.total_text_length = len(all_text)
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ProjectManager.save_extracted_text(project.project_id, all_text)
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logger.info(f"文本提取完成，共 {len(all_text)} 字符")
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# 生成本体
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logger.info("调用 LLM 生成本体定义...")
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generator = OntologyGenerator()
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ontology = generator.generate(
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document_texts=document_texts,
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simulation_requirement=simulation_requirement,
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additional_context=additional_context if additional_context else None
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)
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# 保存本体到项目
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entity_count = len(ontology.get("entity_types", []))
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edge_count = len(ontology.get("edge_types", []))
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logger.info(f"本体生成完成: {entity_count} 个实体类型, {edge_count} 个关系类型")
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project.ontology = {
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"entity_types": ontology.get("entity_types", []),
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"edge_types": ontology.get("edge_types", [])
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}
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project.analysis_summary = ontology.get("analysis_summary", "")
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project.status = ProjectStatus.ONTOLOGY_GENERATED
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ProjectManager.save_project(project)
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logger.info(f"=== 本体生成完成 === 项目ID: {project.project_id}")
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return jsonify({
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"success": True,
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"data": {
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"project_id": project.project_id,
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"project_name": project.name,
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"ontology": project.ontology,
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"analysis_summary": project.analysis_summary,
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"files": project.files,
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"total_text_length": project.total_text_length
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}
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})
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except Exception as e:
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return jsonify({
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"success": False,
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"error": str(e),
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"traceback": traceback.format_exc()
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}), 500
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# ============== 接口2：构建图谱 ==============
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@graph_bp.route('/build', methods=['POST'])
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def build_graph():
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"""
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接口2：根据project_id构建图谱
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请求（JSON）：
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{
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"project_id": "proj_xxxx", // 必填，来自接口1
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"graph_name": "图谱名称", // 可选
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"chunk_size": 500, // 可选，默认500
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"chunk_overlap": 50 // 可选，默认50
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}
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返回：
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{
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"success": true,
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"data": {
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"project_id": "proj_xxxx",
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"task_id": "task_xxxx",
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"message": "图谱构建任务已启动"
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}
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}
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"""
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try:
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logger.info("=== 开始构建图谱 ===")
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# 解析请求
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data = request.get_json() or {}
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project_id = data.get('project_id')
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logger.debug(f"请求参数: project_id={project_id}")
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if not project_id:
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return jsonify({
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"success": False,
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"error": "Please provide project_id"
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}), 400
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# 获取项目
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project = ProjectManager.get_project(project_id)
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if not project:
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return jsonify({
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"success": False,
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"error": f"Project not found: {project_id}"
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}), 404
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# 检查项目状态
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force = data.get('force', False) # 强制重新构建
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if project.status == ProjectStatus.CREATED:
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return jsonify({
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"success": False,
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"error": "Ontology not yet generated for this project. Please call /ontology/generate first"
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}), 400
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if project.status == ProjectStatus.GRAPH_BUILDING and not force:
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return jsonify({
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"success": False,
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"error": "Graph is currently being built. To force rebuild, add force: true",
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"task_id": project.graph_build_task_id
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}), 400
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# 如果强制重建，重置状态
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if force and project.status in [ProjectStatus.GRAPH_BUILDING, ProjectStatus.FAILED, ProjectStatus.GRAPH_COMPLETED]:
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project.status = ProjectStatus.ONTOLOGY_GENERATED
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project.graph_id = None
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project.graph_build_task_id = None
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project.error = None
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# 获取配置
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graph_name = data.get('graph_name', project.name or 'MiroFish Graph')
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chunk_size = data.get('chunk_size', project.chunk_size or Config.DEFAULT_CHUNK_SIZE)
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chunk_overlap = data.get('chunk_overlap', project.chunk_overlap or Config.DEFAULT_CHUNK_OVERLAP)
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# 更新项目配置
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project.chunk_size = chunk_size
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project.chunk_overlap = chunk_overlap
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# 获取提取的文本
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text = ProjectManager.get_extracted_text(project_id)
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if not text:
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return jsonify({
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"success": False,
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"error": "Extracted text content not found"
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}), 400
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# 获取本体
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ontology = project.ontology
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if not ontology:
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return jsonify({
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"success": False,
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"error": "Ontology definition not found"
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}), 400
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# 创建异步任务
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task_manager = TaskManager()
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task_id = task_manager.create_task(f"Build graph: {graph_name}")
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logger.info(f"创建图谱构建任务: task_id={task_id}, project_id={project_id}")
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# 更新项目状态
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project.status = ProjectStatus.GRAPH_BUILDING
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project.graph_build_task_id = task_id
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ProjectManager.save_project(project)
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# 启动后台任务
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def build_task():
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build_logger = get_logger('mirofish.build')
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try:
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build_logger.info(f"[{task_id}] 开始构建图谱 (LLM mode)...")
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task_manager.update_task(
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task_id,
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status=TaskStatus.PROCESSING,
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message="Initializing LLM graph build service..."
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)
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# 创建 LLM 图谱构建服务（不需要 Zep）
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from ..services.llm_graph_builder import DEFAULT_CHUNK_SIZE, DEFAULT_CHUNK_OVERLAP
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builder = LLMGraphBuilderService()
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# Use larger chunks for better context
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entity_chunk_size = max(chunk_size, DEFAULT_CHUNK_SIZE)
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entity_chunk_overlap = max(chunk_overlap, DEFAULT_CHUNK_OVERLAP)
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# 分块
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task_manager.update_task(
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task_id,
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message="Splitting text into chunks...",
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progress=5
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)
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chunks = TextProcessor.split_text(
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text,
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chunk_size=entity_chunk_size,
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overlap=entity_chunk_overlap
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)
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total_chunks = len(chunks)
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# 创建图谱
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task_manager.update_task(
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task_id,
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message="Creating graph...",
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progress=10
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)
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graph_id = builder.create_graph(name=graph_name)
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# 更新项目的graph_id
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project.graph_id = graph_id
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ProjectManager.save_project(project)
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# 设置本体
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builder.set_ontology(graph_id, ontology)
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# Pass 1: Entity extraction
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def entity_progress_callback(msg, progress_ratio):
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progress = 15 + int(progress_ratio * 40) # 15% - 55%
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task_manager.update_task(
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task_id,
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message=msg,
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progress=progress
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)
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task_manager.update_task(
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task_id,
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message=f"[Pass 1] Extracting entities from {total_chunks} chunks...",
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progress=15
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)
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builder.extract_entities(
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graph_id,
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chunks,
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progress_callback=entity_progress_callback
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)
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# Pass 2: Relationship discovery
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def rel_progress_callback(msg, progress_ratio):
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progress = 55 + int(progress_ratio * 35) # 55% - 90%
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task_manager.update_task(
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task_id,
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message=msg,
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progress=progress
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)
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task_manager.update_task(
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task_id,
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message="[Pass 2] Discovering relationships between entities...",
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progress=55
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)
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builder.discover_relationships(
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graph_id,
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text,
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progress_callback=rel_progress_callback
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)
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# 获取图谱数据
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task_manager.update_task(
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task_id,
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message="Retrieving graph data...",
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progress=95
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)
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graph_data = builder.get_graph_data(graph_id)
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# Persist graph data to disk
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project_dir = ProjectManager._get_project_dir(project_id)
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builder.save_graph_data(graph_id, project_dir)
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# 更新项目状态
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project.status = ProjectStatus.GRAPH_COMPLETED
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ProjectManager.save_project(project)
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node_count = graph_data.get("node_count", 0)
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edge_count = graph_data.get("edge_count", 0)
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build_logger.info(f"[{task_id}] 图谱构建完成: graph_id={graph_id}, 节点={node_count}, 边={edge_count}")
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# 完成
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task_manager.update_task(
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task_id,
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status=TaskStatus.COMPLETED,
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message="Graph construction complete",
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progress=100,
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result={
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"project_id": project_id,
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"graph_id": graph_id,
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"node_count": node_count,
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"edge_count": edge_count,
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"chunk_count": total_chunks
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}
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)
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except Exception as e:
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# 更新项目状态为失败
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build_logger.error(f"[{task_id}] 图谱构建失败: {str(e)}")
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build_logger.debug(traceback.format_exc())
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project.status = ProjectStatus.FAILED
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project.error = str(e)
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ProjectManager.save_project(project)
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task_manager.update_task(
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task_id,
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status=TaskStatus.FAILED,
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message=f"Build failed: {str(e)}",
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error=traceback.format_exc()
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)
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# 启动后台线程
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thread = threading.Thread(target=build_task, daemon=True)
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thread.start()
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return jsonify({
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"success": True,
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"data": {
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"project_id": project_id,
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"task_id": task_id,
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"message": "Graph build task started. Query progress via /task/{task_id}"
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}
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})
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except Exception as e:
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return jsonify({
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"success": False,
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"error": str(e),
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"traceback": traceback.format_exc()
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}), 500
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# ============== 任务查询接口 ==============
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@graph_bp.route('/task/<task_id>', methods=['GET'])
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def get_task(task_id: str):
|
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"""
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查询任务状态
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"""
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task = TaskManager().get_task(task_id)
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if not task:
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return jsonify({
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"success": False,
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"error": f"Task not found: {task_id}"
|
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}), 404
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return jsonify({
|
||
"success": True,
|
||
"data": task.to_dict()
|
||
})
|
||
|
||
|
||
@graph_bp.route('/tasks', methods=['GET'])
|
||
def list_tasks():
|
||
"""
|
||
列出所有任务
|
||
"""
|
||
tasks = TaskManager().list_tasks()
|
||
|
||
return jsonify({
|
||
"success": True,
|
||
"data": [t.to_dict() for t in tasks],
|
||
"count": len(tasks)
|
||
})
|
||
|
||
|
||
# ============== 图谱数据接口 ==============
|
||
|
||
@graph_bp.route('/data/<graph_id>', methods=['GET'])
|
||
def get_graph_data(graph_id: str):
|
||
"""
|
||
获取图谱数据（节点和边）
|
||
First tries disk (LLM builder), falls back to Zep if available.
|
||
"""
|
||
try:
|
||
# Find which project owns this graph_id
|
||
all_projects = ProjectManager.list_projects()
|
||
for proj in all_projects:
|
||
if proj.graph_id == graph_id:
|
||
project_dir = ProjectManager._get_project_dir(proj.project_id)
|
||
graph_data = LLMGraphBuilderService.load_graph_data(project_dir)
|
||
if graph_data:
|
||
return jsonify({
|
||
"success": True,
|
||
"data": graph_data
|
||
})
|
||
break
|
||
|
||
# Fallback to Zep if graph data not on disk
|
||
if Config.ZEP_API_KEY:
|
||
builder = GraphBuilderService(api_key=Config.ZEP_API_KEY)
|
||
graph_data = builder.get_graph_data(graph_id)
|
||
return jsonify({
|
||
"success": True,
|
||
"data": graph_data
|
||
})
|
||
|
||
return jsonify({
|
||
"success": False,
|
||
"error": f"Graph data not found for {graph_id}"
|
||
}), 404
|
||
|
||
except Exception as e:
|
||
return jsonify({
|
||
"success": False,
|
||
"error": str(e),
|
||
"traceback": traceback.format_exc()
|
||
}), 500
|
||
|
||
|
||
@graph_bp.route('/delete/<graph_id>', methods=['DELETE'])
|
||
def delete_graph(graph_id: str):
|
||
"""
|
||
删除Zep图谱
|
||
"""
|
||
try:
|
||
if not Config.ZEP_API_KEY:
|
||
return jsonify({
|
||
"success": False,
|
||
"error": "ZEP_API_KEY is not configured"
|
||
}), 500
|
||
|
||
builder = GraphBuilderService(api_key=Config.ZEP_API_KEY)
|
||
builder.delete_graph(graph_id)
|
||
|
||
return jsonify({
|
||
"success": True,
|
||
"message": f"Graph deleted: {graph_id}"
|
||
})
|
||
|
||
except Exception as e:
|
||
return jsonify({
|
||
"success": False,
|
||
"error": str(e),
|
||
"traceback": traceback.format_exc()
|
||
}), 500
|