cis: logger created; start_downloads done

[living-lab-site.git] / cis / logger.py

diff --git a/cis/logger.py b/cis/logger.py
new file mode 100644 (file)
index 0000000..dee0e28
--- /dev/null
+++ b/cis/logger.py
@@ -0,0 +1,37 @@
+import sys
+
+LOG_LEVEL_ALL = 0
+LOG_LEVEL_DEBUG = 1
+LOG_LEVEL_INFO = 2
+LOG_LEVEL_WARNING = 3
+LOG_LEVEL_ERROR = 4
+LOG_LEVEL_FATAL = 5
+LOG_LEVEL_OFF = 6
+
+LOG_LEVEL_NAMES = { \
+    LOG_LEVEL_DEBUG: 'DEBUG', \
+    LOG_LEVEL_INFO: 'INFO', \
+    LOG_LEVEL_WARNING: 'WARNING', \
+    LOG_LEVEL_ERROR: 'ERROR', \
+    LOG_LEVEL_FATAL: 'FATAL', \
+}
+
+import config
+
+def log_msg(msg, level=LOG_LEVEL_INFO):
+    """
+    Prints log messages based on the log level.
+    """
+    
+    if level == LOG_LEVEL_ALL or level == LOG_LEVEL_OFF:
+        return
+        
+    if level < config.LOG_LEVEL:
+        return
+    
+    if level >= LOG_LEVEL_ERROR:
+        f = sys.stderr
+    else:
+        f = sys.stdout
+        
+    f.write('[%s] %s\n' % (LOG_LEVEL_NAMES[level], msg))
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