com.google.gerrit.server.experiments.ExperimentFeatures Maven / Gradle / Ivy
// Copyright (C) 2021 The Android Open Source Project
//
// 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.
package com.google.gerrit.server.experiments;
import com.google.common.collect.ImmutableSet;
/**
* Features that can be enabled/disabled on Gerrit (e. g. experiments to research new behavior in
* the current release).
*
* It may depend on the implementation if the result is decided on the per-request basis or not,
* so the outcomes should not be persisted in {@link com.google.inject.Singleton}.
*/
public interface ExperimentFeatures {
/**
* Given the name of the feature, returns if it is enabled on the Gerrit server.
*
*
Depending on the implementation, it can be more efficient than filtering the results of
* {@link ExperimentFeatures#getEnabledExperimentFeatures}.
*
* @param featureFlag the name of the feature to test.
* @return if the feature is enabled.
*/
boolean isFeatureEnabled(String featureFlag);
/**
* Returns the names of the features that are enabled on Gerrit instance (either by default or via
* gerrit.config).
*/
ImmutableSet getEnabledExperimentFeatures();
}