Removed statsd from the api and use the statsd in the utils library.

The statsd code was added to the utils library a while ago, uses the
statsd from the util library and therefore consolidates the code into
once place.

app/celery/letters_pdf_tasks.py

@@ -2,6 +2,7 @@ from datetime import datetime, timedelta
 import math
 
 from flask import current_app
+from notifications_utils.statsd_decorators import statsd
 from requests import (
     post as requests_post,
     RequestException
@@ -20,7 +21,6 @@ from app.dao.notifications_dao import (
     dao_get_notifications_by_references,
 )
 from app.models import NOTIFICATION_CREATED
-from app.statsd_decorators import statsd
 
 LETTERS_PDF_FILE_LOCATION_STRUCTURE = \
     '{folder}/NOTIFY.{reference}.{duplex}.{letter_class}.{colour}.{crown}.{date}.pdf'

app/celery/process_ses_receipts_tasks.py

@@ -1,8 +1,9 @@
 from flask import current_app
+from notifications_utils.statsd_decorators import statsd
 
 from app import notify_celery
 from app.config import QueueNames
-from app.statsd_decorators import statsd
+
 from app.notifications.notifications_ses_callback import process_ses_response
 
 

app/celery/provider_tasks.py

@@ -1,13 +1,13 @@
 from celery.signals import worker_process_shutdown
 from flask import current_app
 from notifications_utils.recipients import InvalidEmailError
+from notifications_utils.statsd_decorators import statsd
 from sqlalchemy.orm.exc import NoResultFound
 
 from app import notify_celery
 from app.config import QueueNames
 from app.dao import notifications_dao
 from app.dao.notifications_dao import update_notification_status_by_id
-from app.statsd_decorators import statsd
 from app.delivery import send_to_providers
 
 

app/celery/scheduled_tasks.py

@@ -6,6 +6,7 @@ from datetime import (
 
 from celery.signals import worker_process_shutdown
 from flask import current_app
+from notifications_utils.statsd_decorators import statsd
 from sqlalchemy import and_
 from sqlalchemy.exc import SQLAlchemyError
 from notifications_utils.s3 import s3upload
@@ -54,7 +55,6 @@ from app.models import (
     JOB_STATUS_READY_TO_SEND
 )
 from app.notifications.process_notifications import send_notification_to_queue
-from app.statsd_decorators import statsd
 from app.celery.tasks import (
     create_dvla_file_contents_for_notifications,
     process_job

app/celery/service_callback_tasks.py

@@ -1,4 +1,7 @@
 import json
+
+from notifications_utils.statsd_decorators import statsd
+
 from app import (
     DATETIME_FORMAT,
     notify_celery,
@@ -7,7 +10,6 @@ from app.dao.notifications_dao import (
     get_notification_by_id,
 )
 
-from app.statsd_decorators import statsd
 from app.dao.service_callback_api_dao import get_service_callback_api_for_service
 from requests import (
     HTTPError,

app/celery/statistics_tasks.py

@@ -1,10 +1,10 @@
 from celery.signals import worker_process_shutdown
+from notifications_utils.statsd_decorators import statsd
 from sqlalchemy.exc import SQLAlchemyError
 
 from app import notify_celery
 from flask import current_app
 
-from app.statsd_decorators import statsd
 from app.dao.statistics_dao import (
     create_or_update_job_sending_statistics,
     update_job_stats_outcome_count

app/celery/tasks.py

@@ -8,6 +8,7 @@ from flask import current_app
 from notifications_utils.recipients import (
     RecipientCSV
 )
+from notifications_utils.statsd_decorators import statsd
 from notifications_utils.template import (
     SMSMessageTemplate,
     WithSubjectTemplate,
@@ -71,7 +72,6 @@ from app.models import (
 )
 from app.notifications.process_notifications import persist_notification
 from app.service.utils import service_allowed_to_send_to
-from app.statsd_decorators import statsd
 from notifications_utils.s3 import s3upload
 
 

app/dao/inbound_sms_dao.py

@@ -3,12 +3,12 @@ from datetime import (
     datetime
 )
 from flask import current_app
+from notifications_utils.statsd_decorators import statsd
 from sqlalchemy import desc
 
 from app import db
 from app.dao.dao_utils import transactional
 from app.models import InboundSms
-from app.statsd_decorators import statsd
 
 
 @transactional

app/dao/jobs_dao.py

@@ -2,6 +2,7 @@ import uuid
 from datetime import datetime, timedelta
 
 from flask import current_app
+from notifications_utils.statsd_decorators import statsd
 from sqlalchemy import func, desc, asc, cast, Date as sql_date
 
 from app import db
@@ -12,7 +13,6 @@ from app.models import (
     LETTER_TYPE
 )
 from app.variables import LETTER_TEST_API_FILENAME
-from app.statsd_decorators import statsd
 
 
 @statsd(namespace="dao")

app/dao/monthly_billing_dao.py

@@ -1,5 +1,6 @@
 from datetime import datetime
 
+from notifications_utils.statsd_decorators import statsd
 
 from app import db
 from app.dao.dao_utils import transactional
@@ -12,7 +13,6 @@ from app.models import (
     MonthlyBilling,
     NotificationHistory
 )
-from app.statsd_decorators import statsd
 from app.utils import convert_utc_to_bst
 
 

app/dao/notification_usage_dao.py

@@ -1,5 +1,6 @@
 from datetime import datetime, timedelta
 
+from notifications_utils.statsd_decorators import statsd
 from sqlalchemy import Float, Integer, and_
 from sqlalchemy import func, case, cast
 from sqlalchemy import literal_column
@@ -17,7 +18,6 @@ from app.models import (
     LetterRate,
     Service
 )
-from app.statsd_decorators import statsd
 from app.utils import get_london_month_from_utc_column
 
 

app/dao/notifications_dao.py

@@ -13,6 +13,7 @@ from notifications_utils.recipients import (
     InvalidPhoneError,
     InvalidEmailError,
 )
+from notifications_utils.statsd_decorators import statsd
 from werkzeug.datastructures import MultiDict
 from sqlalchemy import (desc, func, or_, asc)
 from sqlalchemy.orm import joinedload
@@ -44,7 +45,6 @@ from app.models import (
 )
 
 from app.dao.dao_utils import transactional
-from app.statsd_decorators import statsd
 
 
 @statsd(namespace="dao")

app/dao/services_dao.py

@@ -1,6 +1,7 @@
 import uuid
 from datetime import date, datetime, timedelta, time
 
+from notifications_utils.statsd_decorators import statsd
 from sqlalchemy import asc, func, extract
 from sqlalchemy.orm import joinedload
 from flask import current_app
@@ -40,7 +41,6 @@ from app.models import (
     TEMPLATE_TYPES,
     LETTER_TYPE,
 )
-from app.statsd_decorators import statsd
 from app.utils import get_london_month_from_utc_column, get_london_midnight_in_utc
 
 DEFAULT_SERVICE_PERMISSIONS = [

app/dao/statistics_dao.py

@@ -2,6 +2,7 @@ from datetime import datetime, timedelta
 from itertools import groupby
 
 from flask import current_app
+from notifications_utils.statsd_decorators import statsd
 from sqlalchemy import func
 from sqlalchemy.exc import IntegrityError, SQLAlchemyError
 
@@ -17,7 +18,6 @@ from app.models import (
     NOTIFICATION_STATUS_SUCCESS,
     NOTIFICATION_DELIVERED,
     NOTIFICATION_SENT)
-from app.statsd_decorators import statsd
 
 
 @transactional

app/dao/stats_template_usage_by_month_dao.py

@@ -1,7 +1,7 @@
+from notifications_utils.statsd_decorators import statsd
 from sqlalchemy import or_, and_
 
 from app import db
-from app.statsd_decorators import statsd
 from app.dao.dao_utils import transactional
 from app.models import StatsTemplateUsageByMonth, Template
 

app/statsd_decorators.py

@@ -1,40 +0,0 @@
-import functools
-
-from app import statsd_client
-from flask import current_app
-from monotonic import monotonic
-
-
-def statsd(namespace):
-    def time_function(func):
-        @functools.wraps(func)
-        def wrapper(*args, **kwargs):
-            start_time = monotonic()
-            try:
-                res = func(*args, **kwargs)
-                elapsed_time = monotonic() - start_time
-                statsd_client.incr('{namespace}.{func}'.format(
-                    namespace=namespace, func=func.__name__)
-                )
-                statsd_client.timing('{namespace}.{func}'.format(
-                    namespace=namespace, func=func.__name__), elapsed_time
-                )
-
-            except Exception as e:
-                current_app.logger.error(
-                    "{namespace} call {func} failed".format(
-                        namespace=namespace, func=func.__name__
-                    )
-                )
-                raise e
-            else:
-                current_app.logger.info(
-                    "{namespace} call {func} took {time}".format(
-                        namespace=namespace, func=func.__name__, time="{0:.4f}".format(elapsed_time)
-                    )
-                )
-                return res
-        wrapper.__wrapped__.__name__ = func.__name__
-        return wrapper
-
-    return time_function

tests/app/test_statsd_decorators.py

@@ -1,24 +0,0 @@
-from unittest.mock import ANY
-
-from app.statsd_decorators import statsd
-import app
-
-
-class AnyStringWith(str):
-    def __eq__(self, other):
-        return self in other
-
-
-def test_should_call_statsd(notify_api, mocker):
-    mocker.patch('app.statsd_client.incr')
-    mocker.patch('app.statsd_client.timing')
-    mock_logger = mocker.patch.object(notify_api.logger, 'info')
-
-    @statsd(namespace="test")
-    def test_function():
-        return True
-
-    assert test_function()
-    app.statsd_client.incr.assert_called_once_with("test.test_function")
-    app.statsd_client.timing.assert_called_once_with("test.test_function", ANY)
-    mock_logger.assert_called_once_with(AnyStringWith("test call test_function took "))