From 4faa7f927149a5c4ef7a03523f7bc14523cb9baa Mon Sep 17 00:00:00 2001
From: Stuart Mackie <wsmackie@juniper.net>
Date: Fri, 7 Oct 2016 12:24:58 -0700
Subject: Charms for Contrail 3.1 with Mitaka

Change-Id: Id37f3b9743d1974e31fcd7cd9c54be41bb0c47fb
Signed-off-by: Stuart Mackie <wsmackie@juniper.net>
---
 .../hooks/charmhelpers/core/strutils.py            | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 charms/trusty/ceilometer-agent/hooks/charmhelpers/core/strutils.py

(limited to 'charms/trusty/ceilometer-agent/hooks/charmhelpers/core/strutils.py')

diff --git a/charms/trusty/ceilometer-agent/hooks/charmhelpers/core/strutils.py b/charms/trusty/ceilometer-agent/hooks/charmhelpers/core/strutils.py
new file mode 100644
index 0000000..dd9b971
--- /dev/null
+++ b/charms/trusty/ceilometer-agent/hooks/charmhelpers/core/strutils.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2014-2015 Canonical Limited.
+#
+# 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.
+
+import six
+import re
+
+
+def bool_from_string(value):
+    """Interpret string value as boolean.
+
+    Returns True if value translates to True otherwise False.
+    """
+    if isinstance(value, six.string_types):
+        value = six.text_type(value)
+    else:
+        msg = "Unable to interpret non-string value '%s' as boolean" % (value)
+        raise ValueError(msg)
+
+    value = value.strip().lower()
+
+    if value in ['y', 'yes', 'true', 't', 'on']:
+        return True
+    elif value in ['n', 'no', 'false', 'f', 'off']:
+        return False
+
+    msg = "Unable to interpret string value '%s' as boolean" % (value)
+    raise ValueError(msg)
+
+
+def bytes_from_string(value):
+    """Interpret human readable string value as bytes.
+
+    Returns int
+    """
+    BYTE_POWER = {
+        'K': 1,
+        'KB': 1,
+        'M': 2,
+        'MB': 2,
+        'G': 3,
+        'GB': 3,
+        'T': 4,
+        'TB': 4,
+        'P': 5,
+        'PB': 5,
+    }
+    if isinstance(value, six.string_types):
+        value = six.text_type(value)
+    else:
+        msg = "Unable to interpret non-string value '%s' as boolean" % (value)
+        raise ValueError(msg)
+    matches = re.match("([0-9]+)([a-zA-Z]+)", value)
+    if not matches:
+        msg = "Unable to interpret string value '%s' as bytes" % (value)
+        raise ValueError(msg)
+    return int(matches.group(1)) * (1024 ** BYTE_POWER[matches.group(2)])
-- 
cgit 1.2.3-korg