android-34/org/chromium/base/BaseFeatureList.java

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package org.chromium.base;

import org.chromium.base.annotations.JNINamespace;
import org.chromium.base.annotations.NativeMethods;
import org.chromium.build.annotations.MainDex;

/**
 * Java accessor for base/feature_list.h state.
 */
@JNINamespace("base::android")
@MainDex
public final class BaseFeatureList {
    // Do not instantiate this class.
    private BaseFeatureList() {}

    /**
     * Returns whether the specified feature is enabled or not.
     *
     * Note: Features queried through this API must be added to the array
     * |kFeaturesExposedToJava| in base/android/base_feature_list.cc
     *
     * @param featureName The name of the feature to query.
     * @return Whether the feature is enabled or not.
     */
    public static boolean isEnabled(String featureName) {
        // FeatureFlags set for testing override the native default value.
        Boolean testValue = FeatureList.getTestValueForFeature(featureName);
        if (testValue != null) return testValue;

        return BaseFeatureListJni.get().isEnabled(featureName);
    }

    @NativeMethods
    interface Natives {
        boolean isEnabled(String featureName);
    }
}