49 lines
1.5 KiB
Java
49 lines
1.5 KiB
Java
package com.ilummc.tlib.util;
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public class Strings {
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public static boolean isBlank(String var) {
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return var == null || var.trim().isEmpty();
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}
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public static boolean isEmpty(CharSequence var) {
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return var == null || var.length() == 0;
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}
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/**
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* 优化过的 String#replace，比默认快了大概 5 倍
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*
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* @param template 模板替换文件
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* @param args 替换的参数
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* @return 替换好的字符串
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*/
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public static String replaceWithOrder(String template, Object... args) {
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if (args.length == 0 || template.length() == 0) {
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return template;
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}
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char[] arr = template.toCharArray();
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StringBuilder stringBuilder = new StringBuilder(template.length());
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for (int i = 0; i < arr.length; i++) {
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if (arr[i] == '{' && Character.isDigit(arr[Math.min(i + 1, arr.length - 1)])
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&& arr[Math.min(i + 1, arr.length - 1)] - '0' < args.length
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&& arr[Math.min(i + 2, arr.length - 1)] == '}') {
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stringBuilder.append(args[arr[i + 1] - '0']);
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i += 2;
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} else {
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stringBuilder.append(arr[i]);
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}
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}
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return stringBuilder.toString();
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}
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// *********************************
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//
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// Deprecated
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//
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// *********************************
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public static String replaceWithOrder(String template, String... args) {
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return replaceWithOrder(template, (Object[]) args);
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}
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}
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