Merge pull request #78 from GoogleCloudPlatform/getting-started

Move bigquery 'getting started' sample into github.

Author: jerjou

bigquery/samples/getting_started.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python
+
+# Copyright 2015, Google, 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.
+
+"""Sample for making BigQuery queries using the python sdk.
+
+This is a command-line script that queries a public shakespeare dataset, and
+displays the 10 of Shakespeare's works with the greatest number of distinct
+words.
+"""
+# [START all]
+from apiclient.discovery import build
+from apiclient.errors import HttpError
+
+from oauth2client.client import GoogleCredentials
+
+
+def main(project_id):
+    # [START build_service]
+    # Grab the application's default credentials from the environment.
+    credentials = GoogleCredentials.get_application_default()
+    # Construct the service object for interacting with the BigQuery API.
+    bigquery_service = build('bigquery', 'v2', credentials=credentials)
+    # [END build_service]
+
+    try:
+        # [START run_query]
+        query_request = bigquery_service.jobs()
+        query_data = {
+            'query': ('SELECT TOP(corpus, 10) as title, '
+                      'COUNT(*) as unique_words '
+                      'FROM [publicdata:samples.shakespeare];')
+            }
+
+        query_response = query_request.query(
+            projectId=project_id,
+            body=query_data).execute()
+        # [END run_query]
+
+        # [START print_results]
+        print('Query Results:')
+        for row in query_response['rows']:
+            print('\t'.join(field['v'] for field in row['f']))
+        # [END print_results]
+
+    except HttpError as err:
+        print('Error: {}'.format(err.content))
+        raise err
+
+
+if __name__ == '__main__':
+    # The id of the project to run queries under.
+    project_id = input("Enter the project ID: ")
+    main(project_id)
+# [END all]

bigquery/samples/list_datasets_projects.py

@@ -75,7 +75,7 @@ def list_projects(service):
 
 def main(project_id):
     credentials = GoogleCredentials.get_application_default()
-    # Construct the service object for the interacting with the BigQuery API.
+    # Construct the service object for interacting with the BigQuery API.
     service = discovery.build('bigquery', 'v2', credentials=credentials)
 
     list_datasets(service, project_id)

bigquery/tests/test_getting_started.py

@@ -0,0 +1,32 @@
+# Copyright 2015, Google, 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 re
+import unittest
+
+from bigquery.samples import getting_started
+
+import tests
+
+
+class TestGettingStarted(tests.CloudBaseTest):
+    def test_main(self):
+        with tests.capture_stdout() as mock_stdout:
+            getting_started.main(self.constants['projectId'])
+        stdout = mock_stdout.getvalue()
+        self.assertRegexpMatches(stdout, re.compile(
+            r'Query Results:.hamlet', re.DOTALL))
+
+
+if __name__ == '__main__':
+    unittest.main()