mirror of
https://github.com/ChuckBuilds/LEDMatrix.git
synced 2026-04-13 05:53:00 +00:00
Optimize cache and weather managers for better performance. Add thread-safe caching, reduce processing overhead, and improve error handling.
This commit is contained in:
ChuckBuilds
@@ -6,6 +6,7 @@ import pytz
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from typing import Any, Dict, Optional
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from typing import Any, Dict, Optional
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import logging
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import logging
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import stat
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import stat
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import threading
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class DateTimeEncoder(json.JSONEncoder):
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class DateTimeEncoder(json.JSONEncoder):
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def default(self, obj):
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def default(self, obj):
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@@ -17,94 +18,100 @@ class CacheManager:
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def __init__(self, cache_dir: str = "cache"):
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def __init__(self, cache_dir: str = "cache"):
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self.logger = logging.getLogger(__name__)
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self.logger = logging.getLogger(__name__)
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self.cache_dir = cache_dir
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self.cache_dir = cache_dir
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self._memory_cache = {}
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self._memory_cache_timestamps = {}
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self._cache_lock = threading.Lock()
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self._ensure_cache_dir()
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self._ensure_cache_dir()
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def _ensure_cache_dir(self) -> None:
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def _ensure_cache_dir(self) -> None:
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"""Ensure the cache directory exists with proper permissions."""
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"""Ensure cache directory exists."""
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if not os.path.exists(self.cache_dir):
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if not os.path.exists(self.cache_dir):
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try:
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os.makedirs(self.cache_dir)
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# If running as root, use /tmp by default
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if os.geteuid() == 0:
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self.cache_dir = os.path.join("/tmp", "ledmatrix_cache")
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self.logger.info(f"Running as root, using temporary cache directory: {self.cache_dir}")
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# Try to create in user's home directory if current directory fails
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elif not os.access(os.getcwd(), os.W_OK):
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home_dir = os.path.expanduser("~")
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self.cache_dir = os.path.join(home_dir, ".ledmatrix_cache")
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self.logger.info(f"Using cache directory in home: {self.cache_dir}")
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# Create directory with 755 permissions (rwxr-xr-x)
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def _get_cache_path(self, key: str) -> str:
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os.makedirs(self.cache_dir, mode=0o755, exist_ok=True)
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"""Get the path for a cache file."""
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return os.path.join(self.cache_dir, f"{key}.json")
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# If running as sudo, change ownership to the real user
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def load_cache(self, key: str) -> Optional[Dict[str, Any]]:
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if os.geteuid() == 0: # Check if running as root
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"""Load data from cache with memory caching."""
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import pwd
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current_time = time.time()
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# Get the real user (not root)
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real_user = os.environ.get('SUDO_USER')
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if real_user:
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uid = pwd.getpwnam(real_user).pw_uid
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gid = pwd.getpwnam(real_user).pw_gid
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os.chown(self.cache_dir, uid, gid)
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self.logger.info(f"Changed cache directory ownership to {real_user}")
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except Exception as e:
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self.logger.error(f"Error setting up cache directory: {e}")
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# Fall back to /tmp if all else fails
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self.cache_dir = os.path.join("/tmp", "ledmatrix_cache")
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try:
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os.makedirs(self.cache_dir, mode=0o755, exist_ok=True)
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self.logger.info(f"Using temporary cache directory: {self.cache_dir}")
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except Exception as e:
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self.logger.error(f"Failed to create temporary cache directory: {e}")
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raise
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def _get_cache_path(self, data_type: str) -> str:
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# Check memory cache first
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"""Get the path for a specific cache file."""
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if key in self._memory_cache:
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return os.path.join(self.cache_dir, f"{data_type}_cache.json")
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if current_time - self._memory_cache_timestamps.get(key, 0) < 60: # 1 minute TTL
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return self._memory_cache[key]
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else:
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# Clear expired memory cache
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del self._memory_cache[key]
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del self._memory_cache_timestamps[key]
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def load_cache(self, data_type: str) -> Optional[Dict[str, Any]]:
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cache_path = self._get_cache_path(key)
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"""Load cached data for a specific type."""
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if not os.path.exists(cache_path):
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cache_path = self._get_cache_path(data_type)
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try:
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if os.path.exists(cache_path):
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with open(cache_path, 'r') as f:
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return json.load(f)
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except Exception as e:
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self.logger.error(f"Error loading cache for {data_type}: {e}")
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return None
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return None
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def save_cache(self, data_type: str, data: Dict[str, Any]) -> bool:
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"""Save data to cache with proper permissions."""
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cache_path = self._get_cache_path(data_type)
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try:
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try:
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# Create a temporary file first
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with self._cache_lock:
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temp_path = cache_path + '.tmp'
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with open(cache_path, 'r') as f:
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with open(temp_path, 'w') as f:
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data = json.load(f)
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json.dump(data, f, cls=DateTimeEncoder)
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# Update memory cache
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self._memory_cache[key] = data
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# Set proper permissions (644 - rw-r--r--)
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self._memory_cache_timestamps[key] = current_time
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os.chmod(temp_path, 0o644)
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return data
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# If running as sudo, change ownership to the real user
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if os.geteuid() == 0: # Check if running as root
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import pwd
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real_user = os.environ.get('SUDO_USER')
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if real_user:
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uid = pwd.getpwnam(real_user).pw_uid
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gid = pwd.getpwnam(real_user).pw_gid
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os.chown(temp_path, uid, gid)
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# Rename temp file to actual cache file (atomic operation)
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os.replace(temp_path, cache_path)
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return True
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except Exception as e:
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except Exception as e:
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self.logger.error(f"Error saving cache for {data_type}: {e}")
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self.logger.error(f"Error loading cache for {key}: {e}")
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# Clean up temp file if it exists
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return None
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if os.path.exists(temp_path):
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def save_cache(self, key: str, data: Dict[str, Any]) -> None:
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"""Save data to cache with memory caching."""
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cache_path = self._get_cache_path(key)
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current_time = time.time()
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try:
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try:
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os.remove(temp_path)
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with self._cache_lock:
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except:
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# Update memory cache first
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pass
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self._memory_cache[key] = data
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return False
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self._memory_cache_timestamps[key] = current_time
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# Then save to disk
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with open(cache_path, 'w') as f:
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json.dump(data, f)
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except Exception as e:
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self.logger.error(f"Error saving cache for {key}: {e}")
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def get_cached_data(self, key: str) -> Optional[Dict[str, Any]]:
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"""Get cached data with memory cache priority."""
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current_time = time.time()
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# Check memory cache first
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if key in self._memory_cache:
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if current_time - self._memory_cache_timestamps.get(key, 0) < 60: # 1 minute TTL
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return self._memory_cache[key]
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else:
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# Clear expired memory cache
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del self._memory_cache[key]
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del self._memory_cache_timestamps[key]
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# Fall back to disk cache
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return self.load_cache(key)
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def clear_cache(self, key: Optional[str] = None) -> None:
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"""Clear cache for a specific key or all keys."""
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with self._cache_lock:
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if key:
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# Clear specific key
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if key in self._memory_cache:
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del self._memory_cache[key]
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del self._memory_cache_timestamps[key]
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cache_path = self._get_cache_path(key)
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if os.path.exists(cache_path):
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os.remove(cache_path)
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else:
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# Clear all keys
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self._memory_cache.clear()
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self._memory_cache_timestamps.clear()
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for file in os.listdir(self.cache_dir):
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if file.endswith('.json'):
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os.remove(os.path.join(self.cache_dir, file))
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def has_data_changed(self, data_type: str, new_data: Dict[str, Any]) -> bool:
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def has_data_changed(self, data_type: str, new_data: Dict[str, Any]) -> bool:
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"""Check if data has changed from cached version."""
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"""Check if data has changed from cached version."""
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@@ -182,21 +189,3 @@ class CacheManager:
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'timestamp': time.time()
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'timestamp': time.time()
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}
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}
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return self.save_cache(data_type, cache_data)
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return self.save_cache(data_type, cache_data)
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def get_cached_data(self, data_type: str) -> Optional[Dict[str, Any]]:
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"""Get cached data if it exists and is still valid."""
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cached = self.load_cache(data_type)
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if not cached:
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return None
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# Check if cache is still valid based on data type
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if data_type == 'weather' and time.time() - cached['timestamp'] > 600: # 10 minutes
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return None
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elif data_type == 'stocks' and time.time() - cached['timestamp'] > 300: # 5 minutes
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return None
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elif data_type == 'stock_news' and time.time() - cached['timestamp'] > 800: # ~13 minutes
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return None
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elif data_type == 'nhl' and time.time() - cached['timestamp'] > 60: # 1 minute
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return None
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return cached['data']
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@@ -1,10 +1,12 @@
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import requests
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import requests
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import time
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import time
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from datetime import datetime
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from datetime import datetime
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from typing import Dict, Any, List
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from typing import Dict, Any, List, Optional
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from PIL import Image, ImageDraw
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from PIL import Image, ImageDraw
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from .weather_icons import WeatherIcons
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from .weather_icons import WeatherIcons
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from .cache_manager import CacheManager
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from .cache_manager import CacheManager
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import logging
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import threading
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class WeatherManager:
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class WeatherManager:
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# Weather condition to larger colored icons (we'll use these as placeholders until you provide custom ones)
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# Weather condition to larger colored icons (we'll use these as placeholders until you provide custom ones)
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@@ -27,11 +29,17 @@ class WeatherManager:
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}
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}
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def __init__(self, config: Dict[str, Any], display_manager):
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def __init__(self, config: Dict[str, Any], display_manager):
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self.logger = logging.getLogger(__name__)
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self.config = config
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self.config = config
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self.display_manager = display_manager
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self.display_manager = display_manager
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self.weather_config = config.get('weather', {})
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self.weather_config = config.get('weather', {})
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self.location = config.get('location', {})
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self.location = config.get('location', {})
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self.last_update = 0
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self._last_update = 0
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self._update_interval = config.get('update_interval', 600) # 10 minutes default
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self._last_state = None
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self._processing_lock = threading.Lock()
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self._cached_processed_data = None
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self._cache_timestamp = 0
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self.weather_data = None
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self.weather_data = None
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self.forecast_data = None
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self.forecast_data = None
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self.hourly_forecast = None
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self.hourly_forecast = None
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@@ -60,140 +68,103 @@ class WeatherManager:
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self.last_hourly_state = None
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self.last_hourly_state = None
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self.last_daily_state = None
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self.last_daily_state = None
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def _fetch_weather(self) -> None:
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def _process_forecast_data(self, data: Dict[str, Any]) -> Dict[str, Any]:
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"""Fetch current weather and forecast data from OpenWeatherMap API."""
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"""Process forecast data with caching."""
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api_key = self.weather_config.get('api_key')
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current_time = time.time()
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if not api_key:
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print("No API key configured for weather")
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return
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# Try to get cached data first
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# Check if we have valid cached processed data
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cached_data = self.cache_manager.get_cached_data('weather')
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if (self._cached_processed_data and
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if cached_data:
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current_time - self._cache_timestamp < 60): # Cache for 1 minute
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self.weather_data = cached_data.get('current')
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return self._cached_processed_data
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self.forecast_data = cached_data.get('forecast')
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if self.weather_data and self.forecast_data:
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self._process_forecast_data(self.forecast_data)
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self.last_update = time.time()
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print("Using cached weather data")
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return
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city = self.location['city']
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with self._processing_lock:
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state = self.location['state']
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# Double check after acquiring lock
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country = self.location['country']
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if (self._cached_processed_data and
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units = self.weather_config.get('units', 'imperial')
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current_time - self._cache_timestamp < 60):
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return self._cached_processed_data
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# First get coordinates using geocoding API
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geo_url = f"http://api.openweathermap.org/geo/1.0/direct?q={city},{state},{country}&limit=1&appid={api_key}"
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try:
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try:
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# Get coordinates
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# Process the data
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response = requests.get(geo_url)
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processed_data = {
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response.raise_for_status()
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'current': self._process_current_conditions(data.get('current', {})),
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geo_data = response.json()
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'hourly': self._process_hourly_forecast(data.get('hourly', [])),
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'daily': self._process_daily_forecast(data.get('daily', []))
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if not geo_data:
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print(f"Could not find coordinates for {city}, {state}")
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return
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lat = geo_data[0]['lat']
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lon = geo_data[0]['lon']
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# Get current weather and forecast using coordinates
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weather_url = f"https://api.openweathermap.org/data/2.5/weather?lat={lat}&lon={lon}&appid={api_key}&units={units}"
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forecast_url = f"https://api.openweathermap.org/data/2.5/forecast?lat={lat}&lon={lon}&appid={api_key}&units={units}"
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# Fetch current weather
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response = requests.get(weather_url)
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response.raise_for_status()
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self.weather_data = response.json()
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# Fetch forecast
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response = requests.get(forecast_url)
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response.raise_for_status()
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self.forecast_data = response.json()
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# Process forecast data
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self._process_forecast_data(self.forecast_data)
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# Cache the new data
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cache_data = {
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'current': self.weather_data,
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'forecast': self.forecast_data
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}
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}
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self.cache_manager.update_cache('weather', cache_data)
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self.last_update = time.time()
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# Cache the processed data
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print("Weather data updated successfully")
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self._cached_processed_data = processed_data
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self._cache_timestamp = current_time
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return processed_data
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except Exception as e:
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except Exception as e:
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print(f"Error fetching weather data: {e}")
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self.logger.error(f"Error processing forecast data: {e}")
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# If we have cached data, use it as fallback
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return {}
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def _fetch_weather(self) -> Optional[Dict[str, Any]]:
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"""Fetch weather data with optimized caching."""
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current_time = time.time()
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# Check if we need to update
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if current_time - self._last_update < self._update_interval:
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cached_data = self.cache_manager.get_cached_data('weather')
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if cached_data:
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if cached_data:
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self.weather_data = cached_data.get('current')
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self.logger.info("Using cached weather data")
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self.forecast_data = cached_data.get('forecast')
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return self._process_forecast_data(cached_data)
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if self.weather_data and self.forecast_data:
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return None
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self._process_forecast_data(self.forecast_data)
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print("Using cached weather data as fallback")
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else:
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self.weather_data = None
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self.forecast_data = None
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def _process_forecast_data(self, forecast_data: Dict[str, Any]) -> None:
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try:
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"""Process forecast data into hourly and daily forecasts."""
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# Fetch new data
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if not forecast_data:
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data = self._fetch_from_api()
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return
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if data:
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self._last_update = current_time
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self.cache_manager.save_cache('weather', data)
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return self._process_forecast_data(data)
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except Exception as e:
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self.logger.error(f"Error fetching weather data: {e}")
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# Try to use cached data as fallback
|
||||||
|
cached_data = self.cache_manager.get_cached_data('weather')
|
||||||
|
if cached_data:
|
||||||
|
self.logger.info("Using cached weather data as fallback")
|
||||||
|
return self._process_forecast_data(cached_data)
|
||||||
|
return None
|
||||||
|
|
||||||
# Process hourly forecast (next 5 hours)
|
def _process_current_conditions(self, current: Dict[str, Any]) -> Dict[str, Any]:
|
||||||
hourly_list = forecast_data.get('list', [])[:5] # Changed from 6 to 5 to match image
|
"""Process current conditions with minimal processing."""
|
||||||
self.hourly_forecast = []
|
if not current:
|
||||||
|
return {}
|
||||||
|
|
||||||
for hour_data in hourly_list:
|
return {
|
||||||
dt = datetime.fromtimestamp(hour_data['dt'])
|
'temp': current.get('temp', 0),
|
||||||
temp = round(hour_data['main']['temp'])
|
'feels_like': current.get('feels_like', 0),
|
||||||
condition = hour_data['weather'][0]['main']
|
'humidity': current.get('humidity', 0),
|
||||||
self.hourly_forecast.append({
|
'wind_speed': current.get('wind_speed', 0),
|
||||||
'hour': dt.strftime('%I:00 %p').lstrip('0'), # Format as "2:00 PM"
|
'description': current.get('weather', [{}])[0].get('description', ''),
|
||||||
'temp': temp,
|
'icon': current.get('weather', [{}])[0].get('icon', '')
|
||||||
'condition': condition
|
|
||||||
})
|
|
||||||
|
|
||||||
# Process daily forecast
|
|
||||||
daily_data = {}
|
|
||||||
full_forecast_list = forecast_data.get('list', []) # Use the full list
|
|
||||||
for item in full_forecast_list: # Iterate over the full list
|
|
||||||
date = datetime.fromtimestamp(item['dt']).strftime('%Y-%m-%d')
|
|
||||||
if date not in daily_data:
|
|
||||||
daily_data[date] = {
|
|
||||||
'temps': [],
|
|
||||||
'conditions': [],
|
|
||||||
'date': datetime.fromtimestamp(item['dt'])
|
|
||||||
}
|
}
|
||||||
daily_data[date]['temps'].append(item['main']['temp'])
|
|
||||||
daily_data[date]['conditions'].append(item['weather'][0]['main'])
|
|
||||||
|
|
||||||
# Calculate daily summaries, excluding today
|
def _process_hourly_forecast(self, hourly: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
|
||||||
self.daily_forecast = []
|
"""Process hourly forecast with minimal processing."""
|
||||||
today_str = datetime.now().strftime('%Y-%m-%d')
|
if not hourly:
|
||||||
|
return []
|
||||||
|
|
||||||
# Sort data by date to ensure chronological order
|
return [{
|
||||||
sorted_daily_items = sorted(daily_data.items(), key=lambda item: item[1]['date'])
|
'time': hour.get('dt', 0),
|
||||||
|
'temp': hour.get('temp', 0),
|
||||||
|
'description': hour.get('weather', [{}])[0].get('description', ''),
|
||||||
|
'icon': hour.get('weather', [{}])[0].get('icon', '')
|
||||||
|
} for hour in hourly[:24]] # Only process next 24 hours
|
||||||
|
|
||||||
# Filter out today's data and take the next 3 days
|
def _process_daily_forecast(self, daily: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
|
||||||
future_days_data = [item for item in sorted_daily_items if item[0] != today_str][:3]
|
"""Process daily forecast with minimal processing."""
|
||||||
|
if not daily:
|
||||||
|
return []
|
||||||
|
|
||||||
for date_str, data in future_days_data:
|
return [{
|
||||||
temps = data['temps']
|
'time': day.get('dt', 0),
|
||||||
temp_high = round(max(temps))
|
'temp_min': day.get('temp', {}).get('min', 0),
|
||||||
temp_low = round(min(temps))
|
'temp_max': day.get('temp', {}).get('max', 0),
|
||||||
condition = max(set(data['conditions']), key=data['conditions'].count)
|
'description': day.get('weather', [{}])[0].get('description', ''),
|
||||||
|
'icon': day.get('weather', [{}])[0].get('icon', '')
|
||||||
self.daily_forecast.append({
|
} for day in daily[:7]] # Only process next 7 days
|
||||||
'date': data['date'].strftime('%a'), # Day name (Mon, Tue, etc.)
|
|
||||||
'date_str': data['date'].strftime('%m/%d'), # Date (4/8, 4/9, etc.)
|
|
||||||
'temp_high': temp_high,
|
|
||||||
'temp_low': temp_low,
|
|
||||||
'condition': condition
|
|
||||||
})
|
|
||||||
|
|
||||||
def get_weather(self) -> Dict[str, Any]:
|
def get_weather(self) -> Dict[str, Any]:
|
||||||
"""Get current weather data, fetching new data if needed."""
|
"""Get current weather data, fetching new data if needed."""
|
||||||
@@ -202,7 +173,7 @@ class WeatherManager:
|
|||||||
|
|
||||||
# Check if we need to update based on time or if we have no data
|
# Check if we need to update based on time or if we have no data
|
||||||
if (not self.weather_data or
|
if (not self.weather_data or
|
||||||
current_time - self.last_update > update_interval):
|
current_time - self._last_update > update_interval):
|
||||||
|
|
||||||
# Check if data has changed before fetching
|
# Check if data has changed before fetching
|
||||||
current_state = self._get_weather_state()
|
current_state = self._get_weather_state()
|
||||||
|
|||||||
Reference in New Issue
Block a user