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Add exposurePercent to ExperimentValues#1201

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rathovarun1032 wants to merge 4 commits intomainfrom
exposure-rc
Open

Add exposurePercent to ExperimentValues#1201
rathovarun1032 wants to merge 4 commits intomainfrom
exposure-rc

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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the Firebase Remote Config SDK by introducing an exposurePercent field to the ExperimentValue and ExperimentValueResponse classes. This change allows the system to store and retrieve the exposure percentage associated with an experiment, providing more comprehensive data for experiment management and analysis within the Remote Config framework.

Highlights

  • New Field Added: A new exposurePercent field of type Double was added to the ExperimentValue class in ParameterValue.java and ExperimentValueResponse in TemplateResponse.java.
  • Method Signature Update: The static factory method ParameterValue.ofExperiment was updated to accept the new exposurePercent parameter.
  • Deserialization Integration: The fromParameterValueResponse method in ParameterValue.java was modified to correctly deserialize and pass the exposurePercent when creating ExperimentValue instances.
  • Test Case Adjustments: Existing unit tests in ParameterValueTest.java were adjusted to reflect the new exposurePercent parameter in ExperimentValue creation.

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Code Review

The pull request introduces an exposurePercent field to the ExperimentValue and ExperimentValueResponse classes, updating their constructors, factory methods, and serialization logic, and modifying existing test cases to include this new parameter. The review comments highlight several areas for improvement, including updating the equals and hashCode methods in ParameterValue.ExperimentValue to correctly incorporate exposurePercent, adding a getter for exposurePercent, updating the Javadoc for the ofExperiment method, removing an unused import in TemplateResponse.java, and adding an assertion for exposurePercent in ParameterValueTest.java.

Comment on lines +119 to +131
), 10.0);
ParameterValue.ExperimentValue experimentValueTwo =
ParameterValue.ofExperiment("experiment_1", ImmutableList.of(
ExperimentVariantValue.of("variant_1", "value_1")
));
), 10.0);
ParameterValue.ExperimentValue experimentValueThree =
ParameterValue.ofExperiment("experiment_2", ImmutableList.of(
ExperimentVariantValue.of("variant_1", "value_1")
));
), 10.0);
ParameterValue.ExperimentValue experimentValueFour =
ParameterValue.ofExperiment("experiment_1", ImmutableList.of(
ExperimentVariantValue.of("variant_2", "value_2")
));
), 10.0);

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high

The testEquality method for ExperimentValue is updated to include exposurePercent in the constructor calls, but the equals and hashCode methods in ParameterValue.ExperimentValue are not updated to consider exposurePercent. This means the equality checks in this test might not be fully accurate or could pass incorrectly if exposurePercent values differ. This is a high-severity correctness issue.

public static ExperimentValue ofExperiment(String experimentId,
List<ExperimentVariantValue> variantValues) {
return new ExperimentValue(experimentId, variantValues);
List<ExperimentVariantValue> variantValues, Double exposurePercent) {

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medium

The Javadoc for the ofExperiment method needs to be updated to include the new exposurePercent parameter. This will ensure that the method's documentation accurately reflects its signature and usage.

public static final class ExperimentValue extends ParameterValue {
private final String experimentId;
private final List<ExperimentVariantValue> variantValues;
private final Double exposurePercent;

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medium

A getter method for exposurePercent is missing in the ExperimentValue class. This is necessary to access the value of this field from outside the class, maintaining proper encapsulation and usability.

import java.util.List;
import java.util.Map;

import org.checkerframework.checker.units.qual.K;

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medium

The import org.checkerframework.checker.units.qual.K is unused. Please remove it to keep the imports clean and avoid unnecessary dependencies.

Varun Rathore and others added 3 commits March 24, 2026 11:34
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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