Implemented processing of blueprints data

* Grab blueprints from Launchpad
* Add new record types for new blueprints and completed blueprints
* Add new metrics

Part of bp metric-by-bugs-blueprints

Change-Id: I4656fc4d7c4626f7589c9551949d12d1f3b195f7

stackalytics/processor/lp.py

@@ -0,0 +1,76 @@
+# Copyright (c) 2013 Mirantis Inc.
+#
+# 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 httplib
+import urlparse
+
+from stackalytics.openstack.common import log as logging
+from stackalytics.processor import utils
+
+
+LOG = logging.getLogger(__name__)
+
+LINK_FIELDS = ['owner', 'drafter', 'starter', 'completer',
+               'assignee', 'approver']
+DATE_FIELDS = ['date_created', 'date_completed', 'date_started']
+
+
+def _module_exists(module):
+    uri = 'https://api.launchpad.net/devel/%s' % module
+    parsed_uri = urlparse.urlparse(uri)
+    conn = httplib.HTTPConnection(parsed_uri.netloc)
+    conn.request('GET', parsed_uri.path)
+    res = conn.getresponse()
+    LOG.debug('Checked uri: %(uri)s, status: %(status)s',
+              {'uri': uri, 'status': res.status})
+    conn.close()
+    return res.status != 404
+
+
+def _link_to_launchpad_id(link):
+    return link[link.find('~') + 1:]
+
+
+def log(repo):
+    module = repo['module']
+    LOG.debug('Retrieving list of blueprints for module: %s', module)
+
+    if not _module_exists(module):
+        LOG.debug('Module %s not exist at Launchpad', module)
+        return
+
+    uri = 'https://api.launchpad.net/devel/%s/all_specifications' % module
+    while True:
+        LOG.debug('Reading chunk from uri %s', uri)
+        chunk = utils.read_json_from_uri(uri)
+        if 'next_collection_link' not in chunk:
+            break
+        uri = chunk['next_collection_link']
+
+        for record in chunk['entries']:
+            for field in LINK_FIELDS:
+                link = record[field + '_link']
+                if link:
+                    record[field] = _link_to_launchpad_id(link)
+                    del record[field + '_link']
+            for field in DATE_FIELDS:
+                date = record[field]
+                if date:
+                    record[field] = utils.iso8601_to_timestamp(date)
+
+            record['module'] = module
+
+            LOG.debug('New blueprint: %s', record)
+            yield record