1 files changed, 134 insertions, 0 deletions
diff --git a/azure/aria/aria-extension-cloudify/src/aria/aria/cli/logger.py b/azure/aria/aria-extension-cloudify/src/aria/aria/cli/logger.py
new file mode 100644
index 0000000..14baae0
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+++ b/azure/aria/aria-extension-cloudify/src/aria/aria/cli/logger.py
@@ -0,0 +1,134 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Centralized logging configuration and formatting.
+"""
+
+import os
+import copy
+import logging
+from logutils import dictconfig
+
+HIGH_VERBOSE = 3
+MEDIUM_VERBOSE = 2
+LOW_VERBOSE = 1
+NO_VERBOSE = 0
+
+LOGGER_CONFIG_TEMPLATE = {
+    "version": 1,
+    "formatters": {
+        "file": {
+            "format": "%(asctime)s [%(levelname)s] %(message)s"
+        },
+        "console": {
+            "format": "%(message)s"
+        }
+    },
+    "handlers": {
+        "file": {
+            "class": "logging.handlers.RotatingFileHandler",
+            "formatter": "file",
+            "maxBytes": "5000000",
+            "backupCount": "20"
+        },
+        "console": {
+            "class": "logging.StreamHandler",
+            "stream": "ext://sys.stdout",
+            "formatter": "console"
+        }
+    },
+    "disable_existing_loggers": False
+}
+
+
+class Logging(object):
+
+    def __init__(self, config):
+        self._log_file = None
+        self._verbosity_level = NO_VERBOSE
+        self._all_loggers_names = []
+        self._configure_loggers(config)
+        self._lgr = logging.getLogger('aria.cli.main')
+
+    @property
+    def logger(self):
+        return self._lgr
+
+    @property
+    def log_file(self):
+        return self._log_file
+
+    @property
+    def verbosity_level(self):
+        return self._verbosity_level
+
+    @verbosity_level.setter
+    def verbosity_level(self, level):
+        self._verbosity_level = level
+        if self.is_high_verbose_level():
+            for logger_name in self._all_loggers_names:
+                logging.getLogger(logger_name).setLevel(logging.DEBUG)
+
+    def is_high_verbose_level(self):
+        return self.verbosity_level == HIGH_VERBOSE
+
+    def _configure_loggers(self, config):
+        loggers_config = config.logging.loggers
+        logfile = config.logging.filename
+
+        logger_dict = copy.deepcopy(LOGGER_CONFIG_TEMPLATE)
+        if logfile:
+            # set filename on file handler
+            logger_dict['handlers']['file']['filename'] = logfile
+            logfile_dir = os.path.dirname(logfile)
+            if not os.path.exists(logfile_dir):
+                os.makedirs(logfile_dir)
+            self._log_file = logfile
+        else:
+            del logger_dict['handlers']['file']
+
+        # add handlers to all loggers
+        loggers = {}
+        for logger_name in loggers_config:
+            loggers[logger_name] = dict(handlers=list(logger_dict['handlers'].keys()))
+            self._all_loggers_names.append(logger_name)
+        logger_dict['loggers'] = loggers
+
+        # set level for all loggers
+        for logger_name, logging_level in loggers_config.iteritems():
+            log = logging.getLogger(logger_name)
+            level = logging._levelNames[logging_level.upper()]
+            log.setLevel(level)
+
+        dictconfig.dictConfig(logger_dict)
+
+
+class ModelLogIterator(object):
+
+    def __init__(self, model_storage, execution_id, filters=None, sort=None, offset=0):
+        self._last_visited_id = offset
+        self._model_storage = model_storage
+        self._execution_id = execution_id
+        self._additional_filters = filters or {}
+        self._sort = sort or {}
+
+    def __iter__(self):
+        filters = dict(execution_fk=self._execution_id, id=dict(gt=self._last_visited_id))
+        filters.update(self._additional_filters)
+
+        for log in self._model_storage.log.iter(filters=filters, sort=self._sort):
+            self._last_visited_id = log.id
+            yield log