com.jaemon.dingtalk.utils.DingTalkUtils Maven / Gradle / Ivy
/*
* Copyright 2015-2020 Jaemon([email protected])
*
* 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.jaemon.dingtalk.utils;
import java.io.Closeable;
import java.util.Base64;
/**
* DingTalk Utils
*
* @author Jaemon@[email protected]
* @version 1.0
*/
public class DingTalkUtils {
private DingTalkUtils() {}
/**
* base64ToByteArray
*
* @param key key
* @return result
*/
public static byte[] base64ToByteArray(String key) {
return Base64.getDecoder().decode(key);
}
/**
* byteArrayToBase64
*
* @param bytes bytes
* @return result
*/
public static String byteArrayToBase64(byte[] bytes) {
return new java.lang.String(Base64.getEncoder().encode(bytes));
}
/**
* close
*
* @param x x
*/
public static void close(Closeable x) {
if (x == null) {
return;
}
try {
x.close();
} catch (Exception e) {
}
}
/**
* isEmpty
*
* @param str str
* @return true | false
*/
public static boolean isEmpty(String str) {
return (str == null || "".equals(str.trim()));
}
/**
* isNotEmpty
*
* @param str str
* @return true | false
*/
public static boolean isNotEmpty(String str) {
return !isEmpty(str);
}
/**
* replaceHeadTailLineBreak
*
* @param str str
* @return result
*/
public static String replaceHeadTailLineBreak(String str) {
String preRegex = "^(\\s*| | |\t)(\\S*)";
String suffixRegex = "(\\S*)(\\s*| | |\t)$";
String regex = "[\t| ]{2,}";
return str
.replaceAll(preRegex, "$2")
.replaceAll(suffixRegex, "$1")
.replaceAll(regex, " ");
}
/**
* classPackageName
*
* @param className className
* @return packageName
*/
public static String classPackageName(String className) {
return className.substring(0, className.lastIndexOf("."));
}
}