Add library for dashboard API

JIRA: PHAROS-265

The DashboardAPI class can be used to query and update dashboard data.

Change-Id: I584a3cc500ff1d67011c18af4e73e504126310a2
Signed-off-by: maxbr <maxbr@mi.fu-berlin.de>

2 files changed, 99 insertions, 0 deletions

diff --git a/tools/pharos-dashboard/dashboard_api/__init__.py b/tools/pharos-dashboard/dashboard_api/__init__.py
new file mode 100644
index 00000000..ce1acf36
--- /dev/null
+++ b/tools/pharos-dashboard/dashboard_api/__init__.py
@@ -0,0 +1,8 @@
+##############################################################################
+# Copyright (c) 2016 Max Breitenfeldt and others.
+#
+# 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
+##############################################################################
\ No newline at end of file
diff --git a/tools/pharos-dashboard/dashboard_api/api.py b/tools/pharos-dashboard/dashboard_api/api.py
new file mode 100644
index 00000000..d40e0aa4
--- /dev/null
+++ b/tools/pharos-dashboard/dashboard_api/api.py
@@ -0,0 +1,91 @@
+##############################################################################
+# Copyright (c) 2016 Max Breitenfeldt and others.
+#
+# 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 logging
+
+import requests
+
+URLS = {
+    'resources': '/api/resources/',
+    'servers': '/api/servers/',
+    'bookings': '/api/bookings',
+    'resource_status': '/api/resource_status/',
+}
+
+class DashboardAPI(object):
+    def __init__(self, dashboard_url, api_token='', verbose=False):
+        self._api_token = api_token
+        self._verbose = verbose
+        self._resources_url = dashboard_url + URLS['resources']
+        self._servers_url = dashboard_url + URLS['servers']
+        self._bookings_url = dashboard_url + URLS['bookings']
+        self._resources_status_url = dashboard_url + URLS['resource_status']
+        self._logger = logging.getLogger(__name__)
+
+    def get_all_resources(self):
+        return self._get_json(self._resources_url)
+
+    def get_resource(self, id='', name='', url=''):
+        if url != '':
+            return self._get_json(url)[0]
+        url = self._resources_url + self._url_parameter(id=id, name=name)
+        return self._get_json(url)[0]
+
+    def get_all_bookings(self):
+        return self._get_json(self._bookings_url)
+
+    def get_resource_bookings(self, resource_id):
+        url = self._bookings_url + self._url_parameter(resource_id=resource_id)
+        return self._get_json(url)
+
+    def get_booking(self, id):
+        url = self._bookings_url + self._url_parameter(id=id)
+        return self._get_json(url)[0]
+
+    def post_resource_status(self, resource_id, type, title, content):
+        data = {
+            'resource': resource_id,
+            'type': type,
+            'title': title,
+            'content': content
+        }
+        return self._post_json(self._resources_status_url, data)
+
+    def get_url(self, url):
+        return self._get_json(url)
+
+    def _url_parameter(self, **kwargs):
+        res = ''
+        prefix = '?'
+        for key, val in kwargs.items():
+            res += prefix + key + '=' + str(val)
+            prefix = '&'
+        return res
+
+    def _get_json(self, url):
+        try:
+            response = requests.get(url)
+            if self._verbose:
+                print('Get JSON: ' + url)
+                print(response.status_code, response.content)
+            return response.json()
+        except requests.exceptions.RequestException as e:
+            self._logger.exception(e)
+        except ValueError as e:
+            self._logger.exception(e)
+
+    def _post_json(self, url, json):
+        if self._api_token == '':
+            raise Exception('Need api token to POST data.')
+        response = requests.post(url, json, headers={'Authorization': 'Token ' + self._api_token})
+        if self._verbose:
+            print('Post JSON: ' + url)
+            print(response.status_code, response.content)
+        return response.status_code