fix: Make Cassandra dependencies optional for CI testing

- Add optional import handling for cassandra-driver in all database modules
- Skip Cassandra integration tests when driver not available
- Create dummy classes to prevent import errors in CI environment
- Ensures pytest can run without optional enterprise dependencies

Resolves CI test failures due to missing Cassandra driver while maintaining
full functionality when dependencies are available

Author: tsrdatatech

src/database/cassandra_manager.py

@@ -10,8 +10,24 @@
 from datetime import datetime
 from typing import Any, Dict, List, Optional
 
-from cassandra.auth import PlainTextAuthProvider
-from cassandra.cluster import Cluster
+try:
+    from cassandra.auth import PlainTextAuthProvider
+    from cassandra.cluster import Cluster
+    CASSANDRA_AVAILABLE = True
+except ImportError:
+    # Cassandra driver not available - create dummy classes for testing
+    CASSANDRA_AVAILABLE = False
+    
+    class PlainTextAuthProvider:
+        def __init__(self, *args, **kwargs):
+            pass
+    
+    class Cluster:
+        def __init__(self, *args, **kwargs):
+            pass
+        
+        def connect(self):
+            raise RuntimeError("Cassandra driver not installed")
 
 from src.core.logger import logger
 from src.schemas.news import NewsArticle

src/database/cassandra_parser_manager.py

@@ -7,7 +7,17 @@
 
 from src.core.logger import logger
 from src.core.parser_manager import ParserManager as BaseParserManager
-from src.database.cassandra_manager import CassandraConfig, CassandraManager
+
+try:
+    from src.database.cassandra_manager import CassandraConfig, CassandraManager, CASSANDRA_AVAILABLE
+except ImportError:
+    CASSANDRA_AVAILABLE = False
+    # Create dummy classes for when Cassandra is not available
+    class CassandraConfig:
+        pass
+    class CassandraManager:
+        pass
+
 from src.schemas.news import NewsArticle
 
 

tests/test_cassandra_integration.py

@@ -6,10 +6,15 @@
 
 import pytest
 
-from src.database.cassandra_manager import CassandraConfig, CassandraManager
-from src.schemas.news import NewsArticle
+try:
+    from src.database.cassandra_manager import CassandraConfig, CassandraManager, CASSANDRA_AVAILABLE
+    from src.schemas.news import NewsArticle
+except ImportError:
+    CASSANDRA_AVAILABLE = False
+    pytest.skip("Cassandra driver not available", allow_module_level=True)
 
 
+@pytest.mark.skipif(not CASSANDRA_AVAILABLE, reason="Cassandra driver not installed")
 class TestCassandraManager:
     """Test cases for Cassandra database manager."""