Add OTI event-handler project

OTI event handler application in DCAEGEN2 platform

Change-Id: Ie64f26f851e2045f00043f90279d503c2dc62948
Issue-ID: DCAEGEN2-1910
Signed-off-by: Kotagiri, Ramprasad (rp5662) <rp5662@att.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/oti/event-handler/otihandler/__main__.py b/oti/event-handler/otihandler/__main__.py
new file mode 100644
index 0000000..59a7087
--- /dev/null
+++ b/oti/event-handler/otihandler/__main__.py
@@ -0,0 +1,74 @@
+# ================================================================================
+# Copyright (c) 2019-2020 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# Licensed 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.
+# ============LICENSE_END=========================================================
+
+"""run as server: python -m otihandler"""
+
+import logging
+import os
+import sys
+
+from otihandler.config import Config
+from otihandler.onap.audit import Audit
+from otihandler.web_server import DTIWeb
+from otihandler.dbclient import DaoBase
+
+
+class LogWriter(object):
+    """redirect the standard out + err to the logger"""
+
+    def __init__(self, logger_func):
+        self.logger_func = logger_func
+
+    def write(self, log_line):
+        """actual writer to be used in place of stdout or stderr"""
+
+        log_line = log_line.rstrip()
+        if log_line:
+            self.logger_func(log_line)
+
+    def flush(self):
+        """no real flushing of the buffer"""
+
+        pass
+
+
+def run_event_handler():
+    """main run function for event_handler"""
+
+    Config.load_from_file()
+    # Config.discover()
+
+    logger = logging.getLogger("event_handler")
+    sys.stdout = LogWriter(logger.info)
+    sys.stderr = LogWriter(logger.error)
+
+    logger.info("========== run_event_handler ==========")
+    app_version = os.getenv("APP_VER")
+    logger.info("app_version %s", app_version)
+    Audit.init(Config.get_system_name(), app_version, Config.LOGGER_CONFIG_FILE_PATH)
+
+    logger.info("starting event_handler with config:")
+    logger.info(Audit.log_json_dumps(Config.config))
+
+    audit = Audit(req_message="start event_handler")
+
+    audit = Audit(req_message="DB init start")
+    DaoBase.init_db(os.environ.get("DB_CONN_URL"))
+
+    DTIWeb.run_forever(audit)
+
+if __name__ == "__main__":
+    run_event_handler()