This wasn't being recorded correctly because the clientId is only
set in LoginFlow after the flow succeeds, whereas we were
previously logging the clientId before executing the flow. This
adds special handling for LoginFlow. Note that we only set the
metric label to the clientId for valid registrar logins, to ensure
that metric cardinality doesn't grow unbounded (as it might if we
used every arbitrary string passed in as an attempted login).
This also refactors creation and handling of FakesAndMocksModule so
as to be able to make test assertions about EPP metrics from
integration flow tests.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=154048280
This fixes recording of number of attempts and command name on EPP
flows, which was broken because a separate metric builder was
being injected in two places, EppController and FlowRunner, with the
one injected into FlowRunner being discarded rather than having changes
applied to the same instance as in EppController.
This also adds a test that the metric is created successfully inside
a flow. Note that tests already exist for EppController to ensure that
the metric is recorded correctly.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152306596
Also more narrowly scopes a catch block in TmchCertificateAuthority.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144744847
This change replaces all Ref objects in the code with Key objects. These are
stored in datastore as the same object (raw datastore keys), so this is not
a model change.
Our best practices doc says to use Keys not Refs because:
* The .get() method obscures what's actually going on
- Much harder to visually audit the code for datastore loads
- Hard to distinguish Ref<T> get()'s from Optional get()'s and Supplier get()'s
* Implicit ofy().load() offers much less control
- Antipattern for ultimate goal of making Ofy injectable
- Can't control cache use or batch loading without making ofy() explicit anyway
* Serialization behavior is surprising and could be quite dangerous/incorrect
- Can lead to serialization errors. If it actually worked "as intended",
it would lead to a Ref<> on a serialized object being replaced upon
deserialization with a stale copy of the old value, which could potentially
break all kinds of transactional expectations
* Having both Ref<T> and Key<T> introduces extra boilerplate everywhere
- E.g. helper methods all need to have Ref and Key overloads, or you need to
call .key() to get the Key<T> for every Ref<T> you want to pass in
- Creating a Ref<T> is more cumbersome, since it doesn't have all the create()
overloads that Key<T> has, only create(Key<T>) and create(Entity) - no way to
create directly from kind+ID/name, raw Key, websafe key string, etc.
(Note that Refs are treated specially by Objectify's @Load method and Keys are not;
we don't use that feature, but it is the one advantage Refs have over Keys.)
The direct impetus for this change is that I am trying to audit our use of memcache,
and the implicit .get() calls to datastore were making that very hard.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=131965491
Daggerizes all of the EPP flows. This does not change anything yet
about the flows themselves, just how they are invoked, but after
this CL it's safe to @Inject things into flow classes.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=125382478
