Java tutorial
/** * Copyright (c) 2000-present Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.portal.kernel.util; import com.liferay.petra.string.CharPool; import com.liferay.petra.string.StringPool; import java.text.NumberFormat; import java.util.Locale; /** * @author Brian Wing Shun Chan */ public class TextFormatter { // Web Search --> WEB_SEARCH public static final int A = 0; // Web Search --> websearch public static final int B = 1; // Web Search --> web_search public static final int C = 2; // Web Search --> WebSearch public static final int D = 3; // Web Search --> web search public static final int E = 4; // Web Search --> webSearch public static final int F = 5; // formatId --> FormatId, FriendlyURLMapper --> FriendlyURLMapper public static final int G = 6; // formatId --> format id, FriendlyURLMapper --> friendly url mapper public static final int H = 7; // FormatId --> formatId, FriendlyURLMapper --> friendlyURLMapper public static final int I = 8; // format-id --> Format Id, friendly-url-mapper --> Friendly Url Mapper public static final int J = 9; // formatId --> format-id, FriendlyURLMapper --> friendly-url-mapper public static final int K = 10; // FormatId --> formatId, FOrmatId --> FOrmatId public static final int L = 11; // format-id --> formatId, friendly-url-mapper --> friendlyUrlMapper public static final int M = 12; // format-id --> format_id, friendly-url-mapper --> friendly_url_mapper public static final int N = 13; // format_id --> format-id, friendly_url_mapper --> friendly-url-mapper public static final int O = 14; // FORMATId --> format-id public static final int Q = 16; public static String format(String s, int style) { if (Validator.isNull(s)) { return null; } s = s.trim(); if (style == A) { return _formatA(s); } else if (style == B) { return _formatB(s); } else if (style == C) { return _formatC(s); } else if (style == D) { return _formatD(s); } else if (style == E) { return _formatE(s); } else if (style == F) { return _formatF(s); } else if (style == G) { return _formatG(s); } else if (style == H) { return _formatH(s); } else if (style == I) { return _formatI(s); } else if (style == J) { return _formatJ(s); } else if (style == K) { return _formatK(s); } else if (style == L) { return _formatL(s); } else if (style == M) { return _formatM(s); } else if (style == N) { return _formatN(s); } else if (style == O) { return _formatO(s); } else if (style == Q) { return _formatQ(s); } return s; } public static String formatName(String name) { if (Validator.isNull(name)) { return name; } String lowerCaseName = StringUtil.trim(StringUtil.toLowerCase(name)); char[] chars = lowerCaseName.toCharArray(); if (chars.length > 0) { chars[0] = Character.toUpperCase(chars[0]); } for (int i = 0; i < chars.length; i++) { if (chars[i] == ' ') { chars[i + 1] = Character.toUpperCase(chars[i + 1]); } } return new String(chars); } public static String formatPlural(String s) { if (Validator.isNull(s)) { return s; } if (s.endsWith("s")) { s = s.substring(0, s.length() - 1) + "ses"; } else if (s.endsWith("y")) { s = s.substring(0, s.length() - 1) + "ies"; } else { s = s + "s"; } return s; } public static String formatStorageSize(double size, Locale locale) { String suffix = _STORAGE_SIZE_SUFFIX_B; if (size >= _STORAGE_SIZE_DENOMINATOR) { suffix = _STORAGE_SIZE_SUFFIX_KB; size = size / _STORAGE_SIZE_DENOMINATOR; } if (size >= _STORAGE_SIZE_DENOMINATOR) { suffix = _STORAGE_SIZE_SUFFIX_MB; size = size / _STORAGE_SIZE_DENOMINATOR; } if (size >= _STORAGE_SIZE_DENOMINATOR) { suffix = _STORAGE_SIZE_SUFFIX_GB; size = size / _STORAGE_SIZE_DENOMINATOR; } NumberFormat numberFormat = NumberFormat.getInstance(locale); if (suffix.equals(_STORAGE_SIZE_SUFFIX_B) || suffix.equals(_STORAGE_SIZE_SUFFIX_KB)) { numberFormat.setMaximumFractionDigits(0); } else { numberFormat.setMaximumFractionDigits(1); } numberFormat.setMinimumFractionDigits(0); return numberFormat.format(size) + StringPool.SPACE + suffix; } public static String formatStorageSize(int size, Locale locale) { return formatStorageSize((double) size, locale); } private static String _formatA(String s) { return StringUtil.replace(StringUtil.toUpperCase(s), CharPool.SPACE, CharPool.UNDERLINE); } private static String _formatB(String s) { return StringUtil.removeChar(StringUtil.toLowerCase(s), CharPool.SPACE); } private static String _formatC(String s) { return StringUtil.replace(StringUtil.toLowerCase(s), CharPool.SPACE, CharPool.UNDERLINE); } private static String _formatD(String s) { return StringUtil.removeChar(s, CharPool.SPACE); } private static String _formatE(String s) { return StringUtil.toLowerCase(s); } private static String _formatF(String s) { s = StringUtil.removeChar(s, CharPool.SPACE); if (Character.isUpperCase(s.charAt(0))) { String lowerCaseFirstChar = StringUtil.toLowerCase(s.substring(0, 1)); s = lowerCaseFirstChar.concat(s.substring(1)); } return s; } private static String _formatG(String s) { if (Character.isLowerCase(s.charAt(0))) { String upperCaseFirstChar = StringUtil.toUpperCase(s.substring(0, 1)); s = upperCaseFirstChar.concat(s.substring(1)); } return s; } private static String _formatH(String s) { StringBuilder sb = new StringBuilder(s.length() * 2); for (int i = 0; i < s.length(); i++) { char c = s.charAt(i); if (!Character.isUpperCase(c)) { sb.append(c); continue; } if ((i > 0) && (Character.isLowerCase(s.charAt(i - 1)) || ((i < (s.length() - 1)) && Character.isLowerCase(s.charAt(i + 1))))) { sb.append(CharPool.SPACE); } sb.append(Character.toLowerCase(c)); } return sb.toString(); } private static String _formatI(String s) { if (s.length() == 1) { return StringUtil.toLowerCase(s); } if (Character.isLowerCase(s.charAt(0))) { return s; } if (Character.isUpperCase(s.charAt(0)) && Character.isLowerCase(s.charAt(1))) { String lowerCaseFirstChar = StringUtil.toLowerCase(s.substring(0, 1)); return s = lowerCaseFirstChar.concat(s.substring(1)); } StringBuilder sb = new StringBuilder(s); for (int i = 0; i < s.length(); i++) { if (((i + 1) != s.length()) && Character.isLowerCase(s.charAt(i + 1))) { break; } char c = Character.toLowerCase(s.charAt(i)); sb.setCharAt(i, c); } return sb.toString(); } private static String _formatJ(String s) { s = StringUtil.replace(s, CharPool.DASH, CharPool.SPACE); s = StringUtil.replace(s, CharPool.UNDERLINE, CharPool.SPACE); StringBuilder sb = new StringBuilder(StringUtil.toLowerCase(s)); for (int i = 0; i < s.length(); i++) { if ((i == 0) || (s.charAt(i - 1) == ' ')) { sb.setCharAt(i, Character.toUpperCase(s.charAt(i))); } } return sb.toString(); } private static String _formatK(String s) { s = _formatH(s); s = StringUtil.replace(s, CharPool.SPACE, CharPool.DASH); return s; } private static String _formatL(String s) { if (s.length() == 1) { return StringUtil.toLowerCase(s); } else if (Character.isLowerCase(s.charAt(0)) || (Character.isUpperCase(s.charAt(0)) && Character.isUpperCase(s.charAt(1)))) { return s; } String lowerCaseFirstChar = StringUtil.toLowerCase(s.substring(0, 1)); return s = lowerCaseFirstChar.concat(s.substring(1)); } private static String _formatM(String s) { StringBuilder sb = new StringBuilder(s.length()); for (int i = 0; i < s.length(); i++) { char c = s.charAt(i); if (c == '-') { } else if ((i > 0) && (s.charAt(i - 1) == '-')) { sb.append(Character.toUpperCase(c)); } else { sb.append(c); } } return sb.toString(); } private static String _formatN(String s) { return StringUtil.replace(s, CharPool.DASH, CharPool.UNDERLINE); } private static String _formatO(String s) { return StringUtil.replace(s, CharPool.UNDERLINE, CharPool.DASH); } private static String _formatQ(String s) { StringBuilder sb = new StringBuilder(StringUtil.toLowerCase(s)); for (int i = 0; i < s.length(); i++) { char c = s.charAt(i); if (Character.isUpperCase(c) && (i > 0) && ((i + 1) < s.length())) { int delta = sb.length() - s.length(); if (Character.isLowerCase(s.charAt(i + 1))) { sb.insert(i + delta, CharPool.DASH); } else if (Character.isLowerCase(s.charAt(i - 1))) { sb.insert(i + delta, CharPool.DASH); } } } return sb.toString(); } private static final double _STORAGE_SIZE_DENOMINATOR = 1024.0; private static final String _STORAGE_SIZE_SUFFIX_B = "B"; private static final String _STORAGE_SIZE_SUFFIX_GB = "GB"; private static final String _STORAGE_SIZE_SUFFIX_KB = "KB"; private static final String _STORAGE_SIZE_SUFFIX_MB = "MB"; }