Visum Thinker MCP Server

# SCRIPT 1 SEMPLIFICATO: Inizializzazione DirectVisumManager # Versione senza emoji per compatibilita Windows console import sys import os import time import json print("=== SCRIPT 1: INIZIALIZZAZIONE DIRECTVISUMMANAGER ===") # Setup VisumPy paths visum_path = r"H:\Program Files\PTV Vision\PTV Visum 2025\Exe" python_path = os.path.join(visum_path, "Python") if visum_path not in sys.path: sys.path.insert(0, visum_path) if python_path not in sys.path: sys.path.insert(0, python_path) # DirectVisumManager class class DirectVisumManager: _instance = None def __new__(cls): if cls._instance is None: cls._instance = super().__new__(cls) cls._instance.visum_instance = None cls._instance.project_loaded = None cls._instance.initialization_time = None cls._instance.creation_timestamp = time.time() return cls._instance def initialize_visum(self): """Initialize VisumPy instance once""" if self.visum_instance is None: try: init_start = time.time() import VisumPy.helpers as vh print("Creating VisumPy instance...") self.visum_instance = vh.CreateVisum(250) # Load default project project_path = r"H:\go\italferr2025\Campoleone\100625_Versione_base_v0.3_sub_ok_priv.ver" print(f"Loading project: {os.path.basename(project_path)}") self.visum_instance.LoadVersion(project_path) self.project_loaded = project_path self.initialization_time = time.time() - init_start nodes = self.visum_instance.Net.Nodes.Count links = self.visum_instance.Net.Links.Count zones = self.visum_instance.Net.Zones.Count print(f"SUCCESS: Initialized in {self.initialization_time:.3f}s:") print(f" Nodes: {nodes:,}") print(f" Links: {links:,}") print(f" Zones: {zones:,}") # Save instance status status = { "initialized": True, "creation_timestamp": self.creation_timestamp, "initialization_time": self.initialization_time, "project_path": project_path, "network_summary": { "nodes": nodes, "links": links, "zones": zones }, "instance_id": id(self.visum_instance), "script": "script1_init" } with open(r"H:\visum-thinker-mcp-server\visum_instance_status.json", 'w') as f: json.dump(status, f, indent=2) return True except Exception as e: print(f"ERROR: Initialization failed: {e}") import traceback traceback.print_exc() return False else: print("SUCCESS: VisumPy instance already exists") return True def get_instance_info(self): """Get current instance information""" if self.visum_instance: try: return { "active": True, "nodes": self.visum_instance.Net.Nodes.Count, "links": self.visum_instance.Net.Links.Count, "zones": self.visum_instance.Net.Zones.Count, "project": self.project_loaded, "initialization_time": self.initialization_time, "creation_timestamp": self.creation_timestamp, "instance_id": id(self.visum_instance) } except Exception as e: return {"active": False, "error": f"Instance not accessible: {e}"} return {"active": False, "error": "Instance not created"} # MAIN EXECUTION try: print(f"Script 1 started at: {time.strftime('%H:%M:%S')}") # Create and initialize manager manager = DirectVisumManager() success = manager.initialize_visum() if success: print(f"\nSCRIPT 1 COMPLETED SUCCESSFULLY!") # Get detailed info info = manager.get_instance_info() print(f"Instance Info:") for key, value in info.items(): if key in ["nodes", "links", "zones"] and isinstance(value, int): print(f" {key}: {value:,}") else: print(f" {key}: {value}") # Keep reference alive print(f"\nKeeping instance alive for 10 seconds...") print(f"During this time, other scripts can access the same instance") start_time = time.time() while time.time() - start_time < 10: try: current_nodes = manager.visum_instance.Net.Nodes.Count elapsed = time.time() - start_time print(f" {elapsed:.1f}s - Instance alive: {current_nodes:,} nodes") time.sleep(2) except Exception as e: print(f" ERROR: Instance died: {e}") break print(f"\nScript 1 finished - instance should remain in memory") # Final status update final_status = manager.get_instance_info() final_status["script1_completed"] = True final_status["script1_end_time"] = time.time() with open(r"H:\visum-thinker-mcp-server\visum_instance_status.json", 'w') as f: json.dump(final_status, f, indent=2) else: print(f"ERROR: SCRIPT 1 FAILED!") except Exception as e: print(f"ERROR: Script 1 error: {e}") import traceback traceback.print_exc() print(f"=== SCRIPT 1 TERMINATO ===") print(f"Ora puoi eseguire Script 2 per testare la persistenza...")