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| # import graphviz | |
| # import json | |
| # from tempfile import NamedTemporaryFile | |
| # import os | |
| # def generate_network_graph(json_input: str, output_format: str) -> str: | |
| # """ | |
| # Generates a network graph from JSON input. | |
| # Args: | |
| # json_input (str): A JSON string describing the network graph structure. | |
| # It must follow the Expected JSON Format Example below. | |
| # Expected JSON Format Example: | |
| # { | |
| # "nodes": [ | |
| # { | |
| # "id": "server1", | |
| # "label": "Web Server", | |
| # "type": "server" | |
| # }, | |
| # { | |
| # "id": "db1", | |
| # "label": "Database", | |
| # "type": "database" | |
| # }, | |
| # { | |
| # "id": "user1", | |
| # "label": "User", | |
| # "type": "user" | |
| # }, | |
| # { | |
| # "id": "service1", | |
| # "label": "API Service", | |
| # "type": "service" | |
| # } | |
| # ], | |
| # "connections": [ | |
| # { | |
| # "from": "user1", | |
| # "to": "server1", | |
| # "label": "HTTP Request", | |
| # "weight": 2 | |
| # }, | |
| # { | |
| # "from": "server1", | |
| # "to": "service1", | |
| # "label": "API Call", | |
| # "weight": 3 | |
| # }, | |
| # { | |
| # "from": "service1", | |
| # "to": "db1", | |
| # "label": "Query", | |
| # "weight": 1 | |
| # } | |
| # ] | |
| # } | |
| # Returns: | |
| # str: The filepath to the generated PNG image file. | |
| # """ | |
| # try: | |
| # if not json_input.strip(): | |
| # return "Error: Empty input" | |
| # data = json.loads(json_input) | |
| # if 'nodes' not in data or 'connections' not in data: | |
| # raise ValueError("Missing required fields: nodes or connections") | |
| # dot = graphviz.Graph( | |
| # name='NetworkGraph', | |
| # format='png', | |
| # engine='neato', | |
| # graph_attr={ | |
| # 'overlap': 'false', | |
| # 'splines': 'true', | |
| # 'bgcolor': 'white', | |
| # 'pad': '0.5', | |
| # 'layout': 'neato' | |
| # }, | |
| # node_attr={ | |
| # 'fixedsize': 'false' | |
| # } | |
| # ) | |
| # type_colors = { | |
| # 'server': '#BEBEBE', | |
| # 'service': '#B8D4F1', | |
| # 'database': '#A8E6CF', | |
| # 'user': '#FFF9C4', | |
| # 'default': '#BEBEBE' | |
| # } | |
| # nodes = data.get('nodes', []) | |
| # connections = data.get('connections', []) | |
| # for node in nodes: | |
| # node_id = node.get('id') | |
| # label = node.get('label') | |
| # node_type = node.get('type', 'default') | |
| # if not all([node_id, label]): | |
| # raise ValueError(f"Invalid node: {node}") | |
| # node_color = type_colors.get(node_type, type_colors['default']) | |
| # font_color = 'black' | |
| # if node_type == 'server': | |
| # shape = 'box' | |
| # style = 'filled,rounded' | |
| # elif node_type == 'database': | |
| # shape = 'cylinder' | |
| # style = 'filled,rounded' | |
| # elif node_type == 'user': | |
| # shape = 'ellipse' | |
| # style = 'filled,rounded' | |
| # elif node_type == 'service': | |
| # shape = 'hexagon' | |
| # style = 'filled,rounded' | |
| # else: | |
| # shape = 'circle' | |
| # style = 'filled,rounded' | |
| # dot.node( | |
| # node_id, | |
| # label, | |
| # shape=shape, | |
| # style=style, | |
| # fillcolor=node_color, | |
| # fontcolor=font_color, | |
| # fontsize='12' | |
| # ) | |
| # for connection in connections: | |
| # from_node = connection.get('from') | |
| # to_node = connection.get('to') | |
| # label = connection.get('label', '') | |
| # weight = connection.get('weight', 1) | |
| # if not all([from_node, to_node]): | |
| # raise ValueError(f"Invalid connection: {connection}") | |
| # penwidth = str(max(1, min(5, weight))) | |
| # dot.edge( | |
| # from_node, | |
| # to_node, | |
| # label=label, | |
| # color='#4a4a4a', | |
| # fontcolor='#4a4a4a', | |
| # fontsize='10', | |
| # penwidth=penwidth | |
| # ) | |
| # with NamedTemporaryFile(delete=False, suffix=f'.{output_format}') as tmp: | |
| # dot.render(tmp.name, format=output_format, cleanup=True) | |
| # return f"{tmp.name}.{output_format}" | |
| # except json.JSONDecodeError: | |
| # return "Error: Invalid JSON format" | |
| # except Exception as e: | |
| # return f"Error: {str(e)}" | |
| import graphviz | |
| import json | |
| from tempfile import NamedTemporaryFile | |
| import os | |
| def generate_network_graph(json_input: str, output_format: str) -> str: | |
| """ | |
| Generates a network graph from JSON input. | |
| Args: | |
| json_input (str): A JSON string describing the network graph structure. | |
| It must follow the Expected JSON Format Example below. | |
| Expected JSON Format Example: | |
| { | |
| "nodes": [ | |
| { | |
| "id": "server1", | |
| "label": "Web Server", | |
| "type": "server" | |
| }, | |
| { | |
| "id": "db1", | |
| "label": "Database", | |
| "type": "database" | |
| }, | |
| { | |
| "id": "user1", | |
| "label": "User", | |
| "type": "user" | |
| }, | |
| { | |
| "id": "service1", | |
| "label": "API Service", | |
| "type": "service" | |
| } | |
| ], | |
| "connections": [ | |
| { | |
| "from": "user1", | |
| "to": "server1", | |
| "label": "HTTP Request", | |
| "weight": 2 | |
| }, | |
| { | |
| "from": "server1", | |
| "to": "service1", | |
| "label": "API Call", | |
| "weight": 3 | |
| }, | |
| { | |
| "from": "service1", | |
| "to": "db1", | |
| "label": "Query", | |
| "weight": 1 | |
| } | |
| ] | |
| } | |
| Returns: | |
| str: The filepath to the generated PNG image file. | |
| """ | |
| try: | |
| if not json_input.strip(): | |
| return "Error: Empty input" | |
| data = json.loads(json_input) | |
| if 'nodes' not in data or 'connections' not in data: | |
| raise ValueError("Missing required fields: nodes or connections") | |
| dot = graphviz.Graph( | |
| name='NetworkGraph', | |
| format='png', | |
| engine='neato', | |
| graph_attr={ | |
| 'overlap': 'false', | |
| 'splines': 'curved', | |
| 'bgcolor': 'white', | |
| 'pad': '1.0', | |
| 'layout': 'neato', | |
| 'sep': '+20', | |
| 'esep': '+10', | |
| 'nodesep': '1.5', | |
| 'concentrate': 'false', | |
| 'maxiter': '1000' | |
| }, | |
| node_attr={ | |
| 'fixedsize': 'false' | |
| }, | |
| edge_attr={ | |
| 'labeldistance': '3.0', | |
| 'labelangle': '15', | |
| 'labelfloat': 'true' | |
| } | |
| ) | |
| type_colors = { | |
| 'server': '#BEBEBE', | |
| 'service': '#B8D4F1', | |
| 'database': '#A8E6CF', | |
| 'user': '#FFF9C4', | |
| 'default': '#BEBEBE' | |
| } | |
| nodes = data.get('nodes', []) | |
| connections = data.get('connections', []) | |
| for node in nodes: | |
| node_id = node.get('id') | |
| label = node.get('label') | |
| node_type = node.get('type', 'default') | |
| if not all([node_id, label]): | |
| raise ValueError(f"Invalid node: {node}") | |
| node_color = type_colors.get(node_type, type_colors['default']) | |
| font_color = 'black' | |
| if node_type == 'server': | |
| shape = 'box' | |
| style = 'filled,rounded' | |
| elif node_type == 'database': | |
| shape = 'cylinder' | |
| style = 'filled,rounded' | |
| elif node_type == 'user': | |
| shape = 'ellipse' | |
| style = 'filled,rounded' | |
| elif node_type == 'service': | |
| shape = 'hexagon' | |
| style = 'filled,rounded' | |
| else: | |
| shape = 'circle' | |
| style = 'filled,rounded' | |
| dot.node( | |
| node_id, | |
| label, | |
| shape=shape, | |
| style=style, | |
| fillcolor=node_color, | |
| fontcolor=font_color, | |
| fontsize='12' | |
| ) | |
| for connection in connections: | |
| from_node = connection.get('from') | |
| to_node = connection.get('to') | |
| label = connection.get('label', '') | |
| weight = connection.get('weight', 1) | |
| if not all([from_node, to_node]): | |
| raise ValueError(f"Invalid connection: {connection}") | |
| penwidth = str(max(1, min(5, weight))) | |
| dot.edge( | |
| from_node, | |
| to_node, | |
| label=label, | |
| color='#4a4a4a', | |
| fontcolor='#4a4a4a', | |
| fontsize='8', | |
| penwidth=penwidth, | |
| labeldistance='2.5', | |
| labelangle='10', | |
| labelfloat='true' | |
| ) | |
| with NamedTemporaryFile(delete=False, suffix=f'.{output_format}') as tmp: | |
| dot.render(tmp.name, format=output_format, cleanup=True) | |
| return f"{tmp.name}.{output_format}" | |
| except json.JSONDecodeError: | |
| return "Error: Invalid JSON format" | |
| except Exception as e: | |
| return f"Error: {str(e)}" |