com.github.unafraid.telegrambot.util.CommonUtil Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of CoreAPI Show documentation
Telegram Bots InlineMenu API
The newest version!
/*
 * Copyright (c) 2017 Rumen Nikiforov 
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.github.unafraid.telegrambot.util;

/**
 * @author UnAfraid
 */
public class CommonUtil {
	/**
	 * @param intValue     the value
	 * @param defaultValue the default value
	 * @return intValue as int if its valid integer value, defaultValue otherwise
	 */
	public static int parseInt(String intValue, int defaultValue) {
		try {
			return Integer.parseInt(intValue);
		} catch (Exception e) {
			return defaultValue;
		}
	}
	
	/**
	 * @param text the text
	 * @return {@code true} if text can be parsed as long, {@code false}
	 */
	public static boolean isDigit(String text) {
		try {
			Long.parseLong(text);
			return true;
		} catch (Throwable t) {
			return false;
		}
	}
	
	/**
	 * @param text - the text to check
	 * @return {@code true} if {@code text} is integer, {@code false} otherwise
	 */
	public static boolean isInteger(String text) {
		if ((text == null) || text.isEmpty()) {
			return false;
		}
		try {
			Integer.decode(text);
			return true;
		} catch (Exception e) {
			return false;
		}
	}
	
	/**
	 * @param text - the text to check
	 * @return {@code true} if {@code text} is float, {@code false} otherwise
	 */
	public static boolean isFloat(String text) {
		if ((text == null) || text.isEmpty()) {
			return false;
		}
		try {
			Float.parseFloat(text);
			return true;
		} catch (Exception e) {
			return false;
		}
	}
	
	/**
	 * @param text - the text to check
	 * @return {@code true} if {@code text} is double, {@code false} otherwise
	 */
	public static boolean isDouble(String text) {
		if ((text == null) || text.isEmpty()) {
			return false;
		}
		try {
			Double.parseDouble(text);
			return true;
		} catch (Exception e) {
			return false;
		}
	}
	
	/**
	 * @param       the type
	 * @param name     the text to check
	 * @param enumType the enum type
	 * @return {@code true} if {@code text} is enum, {@code false} otherwise
	 */
	public static > boolean isEnum(String name, Class enumType) {
		if ((name == null) || name.isEmpty()) {
			return false;
		}
		try {
			Enum.valueOf(enumType, name);
			return true;
		} catch (Exception e) {
			return false;
		}
	}
}