com.google.gerrit.server.experiments.ConfigExperimentFeatures 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;
import com.google.gerrit.server.config.GerritServerConfig;
import com.google.inject.AbstractModule;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.jgit.lib.Config;
/**
* An implementation of {@link ExperimentFeatures} that uses gerrit.config to evaluate the status of
* the feature.
*/
@Singleton
public class ConfigExperimentFeatures implements ExperimentFeatures {
public static class ConfigExperimentFeaturesModule extends AbstractModule {
@Override
protected void configure() {
bind(ExperimentFeatures.class).to(ConfigExperimentFeatures.class);
}
}
private ImmutableSet enabledExperimentFeatures;
@Inject
public ConfigExperimentFeatures(@GerritServerConfig Config gerritServerConfig) {
Set enabledExperiments = new HashSet<>();
Arrays.stream(gerritServerConfig.getStringList("experiments", null, "enabled"))
.forEach(enabledExperiments::add);
ExperimentFeaturesConstants.DEFAULT_ENABLED_FEATURES.forEach(enabledExperiments::add);
Arrays.stream(gerritServerConfig.getStringList("experiments", null, "disabled"))
.forEach(enabledExperiments::remove);
enabledExperimentFeatures = ImmutableSet.copyOf(enabledExperiments);
}
@Override
public boolean isFeatureEnabled(String featureFlag) {
return getEnabledExperimentFeatures().contains(featureFlag);
}
@Override
public ImmutableSet getEnabledExperimentFeatures() {
return enabledExperimentFeatures;
}
}