first working

frametypes/ptp_announce.py

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+from collections import defaultdict
+from typing import Dict, List, Any
+from scapy.all import Packet
+
+from .base import FrameTypeInterface
+
+
+class PTPAnnounceStats(FrameTypeInterface):
+    """PTP Announce Message Statistics"""
+    def __init__(self):
+        super().__init__()
+        self.name = "PTP Announce"
+        self.count = 0
+        self.bytes = 0
+        self.first_time = None
+        self.last_time = None
+        self.announce_count = 0
+        self.grandmaster_changes = 0
+        self.priority_changes = 0
+        self.grandmaster_ids = set()
+        self.clock_classes = defaultdict(int)
+    
+    def add(self, timestamp: float, size: int, packet: Packet):
+        self.count += 1
+        self.bytes += size
+        if self.first_time is None:
+            self.first_time = timestamp
+        self.last_time = timestamp
+        
+        # In real implementation, decode PTP announce messages
+    
+    def get_summary_dict(self) -> Dict[str, Any]:
+        duration = (self.last_time or 0) - (self.first_time or 0)
+        return {
+            'Pkts': self.count,
+            'Announce': self.announce_count,
+            'GM Changes': self.grandmaster_changes,
+            'Priority Changes': self.priority_changes,
+            'Grandmasters': len(self.grandmaster_ids),
+            'Clock Classes': len(self.clock_classes)
+        }
+    
+    def get_column_definitions(self) -> List[tuple]:
+        return [
+            ('Pkts', 'd'),
+            ('Announce', 'd'),
+            ('GM Changes', 'd'),
+            ('Priority Changes', 'd'),
+            ('Grandmasters', 'd'),
+            ('Clock Classes', 'd')
+        ]