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refactor: moved validated forced decision to decision service #369

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Merged
merged 3 commits into from
Jan 6, 2022
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refactor: moved validated forced decision to decision service #369

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6673021
moved validate forced decision
ozayr-zaviar Dec 22, 2021
0099740
headers updated
ozayr-zaviar Jan 4, 2022
e6d39af
comments addressed
ozayr-zaviar Jan 6, 2022
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moved validate forced decision
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@ozayr-zaviar
ozayr-zaviar committed Dec 22, 2021
commit 6673021b1872b61ff5fb9a2b53d049f82564a07a
68 changes: 64 additions & 4 deletions optimizely/decision_service.py
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Original file line number Diff line number Diff line change
Expand Up @@ -378,8 +378,8 @@ def get_variation_for_rollout(self, project_config, feature, user):
# check forced decision first
rule = rollout_rules[index]
optimizely_decision_context = OptimizelyUserContext.OptimizelyDecisionContext(feature.key, rule.key)
forced_decision_variation, reasons_received = user.find_validated_forced_decision(
optimizely_decision_context)
forced_decision_variation, reasons_received = self.validated_forced_decision(
optimizely_decision_context, user)
decide_reasons += reasons_received

if forced_decision_variation:
Expand Down Expand Up @@ -464,8 +464,8 @@ def get_variation_for_feature(self, project_config, feature, user_context, optio
optimizely_decision_context = OptimizelyUserContext.OptimizelyDecisionContext(feature.key,
experiment.key)

forced_decision_variation, reasons_received = user_context.find_validated_forced_decision(
optimizely_decision_context)
forced_decision_variation, reasons_received = self.validated_forced_decision(
optimizely_decision_context, user_context)
decide_reasons += reasons_received

if forced_decision_variation:
Expand All @@ -489,3 +489,63 @@ def get_variation_for_feature(self, project_config, feature, user_context, optio
if rollout_variation_reasons:
decide_reasons += rollout_variation_reasons
return variation, decide_reasons

def validated_forced_decision(self, decision_context, user_context):
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@yasirfolio3 yasirfolio3 Dec 29, 2021 •
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can we rename it to something that's more readable and clear? the previous one seemed okay find_validated_forced_decision

"""
Gets forced decisions based on flag key, rule key and variation.
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Suggested change
Gets forced decisions based on flag key, rule key and variation.
Validates and returns forced decision based on flag key, rule key and variation.


Args:
decision context: a decision context
user_context context: a user context

Returns:
Variation of the forced decision.
"""
reasons = []

forced_decision = user_context.find_forced_decision(decision_context)
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Since we remove extra checking from get_forced_decision, we do not need find_forced_decision. It's identical to get_forced_decision. We can remove it and use get_forced_decision here.


flag_key = decision_context.flag_key
rule_key = decision_context.rule_key
Comment on lines +509 to +510
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Can we put these lines inside the if block?


if forced_decision:
# we use config here so we can use get_flag_variation() function which is defined in project_config
# otherwise we would us user_context.client instead of config
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please make it more readable.

config = user_context.client.config_manager.get_config() if user_context.client else None
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Pass config as a parameter from caller (not from user_context to break a cycle).

if not config:
return None, reasons
variation = config.get_flag_variation(flag_key, 'key', forced_decision.variation_key)
if variation:
if rule_key:
user_has_forced_decision = enums.ForcedDecisionLogs \
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please update this name to something that suggests it is a reason.
user_has_forced_decision

.USER_HAS_FORCED_DECISION_WITH_RULE_SPECIFIED.format(forced_decision.variation_key,
flag_key,
rule_key,
user_context.user_id)

else:
user_has_forced_decision = enums.ForcedDecisionLogs \
.USER_HAS_FORCED_DECISION_WITHOUT_RULE_SPECIFIED.format(forced_decision.variation_key,
flag_key,
user_context.user_id)

reasons.append(user_has_forced_decision)
user_context.logger.info(user_has_forced_decision)
Comment on lines +530 to +531
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i see the same code at 548-549, can we have it only once?


return variation, reasons

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Suggested change

else:
if rule_key:
user_has_forced_decision_but_invalid = enums.ForcedDecisionLogs \
.USER_HAS_FORCED_DECISION_WITH_RULE_SPECIFIED_BUT_INVALID.format(flag_key,
rule_key,
user_context.user_id)
else:
user_has_forced_decision_but_invalid = enums.ForcedDecisionLogs \
.USER_HAS_FORCED_DECISION_WITHOUT_RULE_SPECIFIED_BUT_INVALID.format(flag_key,
user_context.user_id)

reasons.append(user_has_forced_decision_but_invalid)
user_context.logger.info(user_has_forced_decision_but_invalid)

return None, reasons
3 changes: 2 additions & 1 deletion optimizely/optimizely.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1036,7 +1036,8 @@ def _decide(self, user_context, key, decide_options=None):

# Check forced decisions first
optimizely_decision_context = OptimizelyUserContext.OptimizelyDecisionContext(flag_key=key, rule_key=rule_key)
forced_decision_response = user_context.find_validated_forced_decision(optimizely_decision_context)
forced_decision_response = self.decision_service.validated_forced_decision(optimizely_decision_context,
user_context)
variation, decision_reasons = forced_decision_response
reasons += decision_reasons

Expand Down
60 changes: 0 additions & 60 deletions optimizely/optimizely_user_context.py
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Expand Up @@ -16,8 +16,6 @@
import copy
import threading

from .helpers import enums


class OptimizelyUserContext(object):
"""
Expand Down Expand Up @@ -225,61 +223,3 @@ def find_forced_decision(self, decision_context):

# must allow None to be returned for the Flags only case
return self.forced_decisions_map.get(decision_context)

def find_validated_forced_decision(self, decision_context):
"""
Gets forced decisions based on flag key, rule key and variation.

Args:
decision context: a decision context

Returns:
Variation of the forced decision.
"""
reasons = []

forced_decision = self.find_forced_decision(decision_context)

flag_key = decision_context.flag_key
rule_key = decision_context.rule_key

if forced_decision:
# we use config here so we can use get_flag_variation() function which is defined in project_config
# otherwise we would us self.client instead of config
config = self.client.config_manager.get_config() if self.client else None
if not config:
return None, reasons
variation = config.get_flag_variation(flag_key, 'key', forced_decision.variation_key)
if variation:
if rule_key:
user_has_forced_decision = enums.ForcedDecisionLogs \
.USER_HAS_FORCED_DECISION_WITH_RULE_SPECIFIED.format(forced_decision.variation_key,
flag_key,
rule_key,
self.user_id)

else:
user_has_forced_decision = enums.ForcedDecisionLogs \
.USER_HAS_FORCED_DECISION_WITHOUT_RULE_SPECIFIED.format(forced_decision.variation_key,
flag_key,
self.user_id)

reasons.append(user_has_forced_decision)
self.logger.info(user_has_forced_decision)

return variation, reasons

else:
if rule_key:
user_has_forced_decision_but_invalid = enums.ForcedDecisionLogs \
.USER_HAS_FORCED_DECISION_WITH_RULE_SPECIFIED_BUT_INVALID.format(flag_key,
rule_key,
self.user_id)
else:
user_has_forced_decision_but_invalid = enums.ForcedDecisionLogs \
.USER_HAS_FORCED_DECISION_WITHOUT_RULE_SPECIFIED_BUT_INVALID.format(flag_key, self.user_id)

reasons.append(user_has_forced_decision_but_invalid)
self.logger.info(user_has_forced_decision_but_invalid)

return None, reasons