adding odl-pipeline

Change-Id: I1c08883f0d68a61ce9e10c5596aec1a259eed71f
Signed-off-by: Nikolas Hermanns <nikolas.hermanns@ericsson.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/odl-pipeline/lib/utils/service.py b/odl-pipeline/lib/utils/service.py
new file mode 100755
index 0000000..39cdce5
--- /dev/null
+++ b/odl-pipeline/lib/utils/service.py
@@ -0,0 +1,67 @@
+#
+# Copyright (c) 2015 All rights reserved
+# This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+#
+import sys
+import yaml
+import argparse
+import traceback
+from utils_log import LOG, LOG_PATH
+from abc import abstractmethod
+
+
+class Service(object):
+
+    def start(self):
+        try:
+            self._run()
+        except Exception as ex:
+            LOG.error(ex.message)
+            LOG.error(traceback.format_exc())
+            LOG.error("For more logs check: %(log_path)s"
+                      % {'log_path': LOG_PATH})
+            sys.exit(1)
+
+    def _run(self):
+        parser = self._create_cli_parser()
+        sys_args = parser.parse_args()
+        config = self.read_config(sys_args)
+        self.run(sys_args, config)
+
+    @abstractmethod
+    def run(self, sys_args, config):
+        # Do something
+        return
+
+    @abstractmethod
+    def create_cli_parser(self, parser):
+        # Read in own sys args
+        return parser
+
+    def _create_cli_parser(self):
+        parser = argparse.ArgumentParser(description='OVS Debugger')
+        # parser.add_argument('-c', '--config', help="Path to config.yaml",
+        #                     required=False)
+        # parser.add_argument('--boolean', help="",
+        #                     required=False, action='store_true')
+        return self.create_cli_parser(parser)
+
+    def read_config(self, sys_args):
+        if not hasattr(sys_args, 'config'):
+            return None
+        if not sys_args.config:
+            config_path = './etc/config.yaml'
+        else:
+            config_path = sys_args.config
+        try:
+            with open(config_path) as f:
+                return yaml.load(f)
+        except yaml.scanner.ScannerError as ex:
+            LOG.error("Yaml file corrupt. Try putting spaces after the "
+                      "colons.")
+            raise ex