/*
 * Copyright (C) 2015 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.android.tv.util;

/**
 * Utility class for handling {@link String}.
 */
public final class StringUtils {

    private StringUtils() { }

    /**
     * Returns compares two strings lexicographically and handles null values quietly.
     */
    public static int compare(String a, String b) {
        if (a == null) {
            return b == null ? 0 : -1;
        }
        if (b == null) {
            return 1;
        }
        return a.compareTo(b);
    }
}