Add config validation for default_data

It is a little difficult to set up default_data.json for users, and
we already have the corresponding schema in the code. JSON-Schema
outputs useful error message when users misconfigures some items.
So this patch makes the schema validation enabled for default_data.

Change-Id: Id0efae913c202a30476d73a3821711c5250fcfee

requirements.txt

@@ -6,6 +6,7 @@ pbr>=2.0.0 # Apache-2.0
 Babel>=2.3.4 # BSD
 Flask!=0.11,<1.0,>=0.10 # BSD
 iso8601>=0.1.11 # MIT
+jsonschema>=2.0.0,<3.0.0,!=2.5.0 # MIT
 oslo.config>=3.22.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0

stackalytics/processor/main.py

@@ -15,6 +15,7 @@
 
 import itertools
 
+import jsonschema
 from oslo_config import cfg
 from oslo_log import log as logging
 import psutil
@@ -32,6 +33,7 @@ from stackalytics.processor import mps
 from stackalytics.processor import rcs
 from stackalytics.processor import record_processor
 from stackalytics.processor import runtime_storage
+from stackalytics.processor import schema
 from stackalytics.processor import utils
 from stackalytics.processor import vcs
 from stackalytics.processor import zanata
@@ -316,6 +318,12 @@ def main():
         LOG.critical('Unable to load default data')
         return not 0
 
+    try:
+        jsonschema.validate(default_data, schema.default_data)
+    except jsonschema.ValidationError as e:
+        LOG.critical('The default data is invalid: %s' % e)
+        return not 0
+
     default_data_processor.process(runtime_storage_inst,
                                    default_data,
                                    CONF.driverlog_data_uri)

test-requirements.txt

@@ -6,7 +6,6 @@
 hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 coverage>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
-jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
 mock>=2.0 # BSD
 python-subunit>=0.0.18 # Apache-2.0/BSD
 sphinx>=1.5.1 # BSD