Strings.java

/*
 * Copyright (c) 2014. ThanksMister LLC
 *
 * 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.thanksmister.btcblue.utils;

public final class Strings
{
    private Strings()
    {
        // No instances.
    }

    public static boolean isBlank(CharSequence string)
    {
        return (string == null || string.toString().trim().length() == 0 || string.equals(""));
    }

    public static String valueOrDefault(String string, String defaultString)
    {
        return isBlank(string) ? defaultString : string;
    }

    public static String truncateAt(String string, int length)
    {
        return string.length() > length ? string.substring(0, length) : string;
    }
}