io.sphere.internal.util.Ext Maven / Gradle / Ivy
package io.sphere.internal.util;
import java.text.*;
import java.util.Currency;
import java.util.Date;
import java.util.Locale;
import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.TimeZone;
/**
* Java helpers ported from Play 1.
*/
public class Ext {
public static Object[] enumValues(Class clazz) {
return clazz.getEnumConstants();
}
public static boolean contains(String[] array, String value) {
for (String v : array) {
if (v.equals(value)) {
return true;
}
}
return false;
}
public static String[] add(String[] array, String o) {
String[] newArray = new String[array.length + 1];
System.arraycopy(array, 0, newArray, 0, array.length);
newArray[array.length] = o;
return newArray;
}
public static String[] remove(String[] array, String s) {
List temp = new ArrayList(Arrays.asList(array));
temp.remove(s);
return temp.toArray(new String[temp.size()]);
}
public static String capitalizeWords(String source) {
char prevc = ' '; // first char of source is capitalized
StringBuffer sb = new StringBuffer();
for (int i = 0; i < source.length(); i++) {
char c = source.charAt(i);
if (c != ' ' && prevc == ' ') {
sb.append(Character.toUpperCase(c));
} else {
sb.append(c);
}
prevc = c;
}
return sb.toString();
}
public static String pad(String str, Integer size) {
int t = size - str.length();
for (int i = 0; i < t; i++) {
str += " ";
}
return str;
}
protected static boolean eval(Object condition) {
if (condition == null) {
return false;
}
if (condition instanceof Boolean && !(Boolean) condition) {
return false;
}
if (condition instanceof Collection && ((Collection) condition).size() == 0) {
return false;
}
if (condition instanceof String && condition.toString().equals("")) {
return false;
}
return true;
}
public static String format(Date date, String pattern, String lang) {
return new SimpleDateFormat(pattern, new Locale(lang)).format(date);
}
public static String format(Date date, String pattern, String lang, String timezone) {
DateFormat df = new SimpleDateFormat(pattern, new Locale(lang));
df.setTimeZone(TimeZone.getTimeZone(timezone));
return df.format(date);
}
public static Integer page(Number number, Integer pageSize) {
return number.intValue() / pageSize + (number.intValue() % pageSize > 0 ? 1 : 0);
}
public static String asdate(Long timestamp, String pattern, String lang) {
return new SimpleDateFormat(pattern, new Locale(lang)).format(new Date(timestamp));
}
public static String asdate(Long timestamp, String pattern, String lang, String timezone) {
return format(new Date(timestamp), pattern, lang, timezone);
}
public static String formatSize(Long bytes) {
if (bytes < 1024L) {
return bytes + " B";
}
if (bytes < 1048576L) {
return bytes / 1024L + "KB";
}
if (bytes < 1073741824L) {
return bytes / 1048576L + "MB";
}
return bytes / 1073741824L + "GB";
}
public static String formatCurrency(Number number, Locale locale) {
Currency currency = Currency.getInstance(locale);
NumberFormat numberFormat = NumberFormat.getCurrencyInstance(locale);
numberFormat.setCurrency(currency);
numberFormat.setMaximumFractionDigits(currency.getDefaultFractionDigits());
String s = numberFormat.format(number);
s = s.replace(currency.getCurrencyCode(), currency.getSymbol(locale));
return s;
}
public static String addSlashes(Object o) {
String string = o.toString();
return string.replace("\"", "\\\"").replace("'", "\\'");
}
public static String capFirst(Object o) {
String string = o.toString();
if (string.length() == 0) {
return string;
}
return ("" + string.charAt(0)).toUpperCase() + string.substring(1);
}
public static String capAll(Object o) {
String string = o.toString();
return capitalizeWords(string);
}
public static String cut(Object o, String pattern) {
String string = o.toString();
return string.replace(pattern, "");
}
public static boolean divisibleBy(Number n, int by) {
return n.longValue() % by == 0;
}
public static String pluralize(Number n) {
long l = n.longValue();
if (l != 1) {
return "s";
}
return "";
}
public static String pluralize(Collection n) {
return pluralize(n.size());
}
public static String pluralize(Number n, String plural) {
long l = n.longValue();
if (l != 1) {
return plural;
}
return "";
}
public static String pluralize(Collection n, String plural) {
return pluralize(n.size(), plural);
}
public static String pluralize(Number n, String[] forms) {
long l = n.longValue();
if (l != 1) {
return forms[1];
}
return forms[0];
}
public static String pluralize(Collection n, String[] forms) {
return pluralize(n.size(), forms);
}
public static String noAccents(String string) {
String normalized = Normalizer.normalize(string, Normalizer.Form.NFD);
StringBuilder stripped = new StringBuilder();
for (int i=0; i < normalized.length(); i++) {
if (Character.getType(normalized.charAt(i)) != Character.NON_SPACING_MARK) {
stripped.append(normalized.charAt(i));
}
}
return stripped.toString();
}
public static String slugify(String string) {
return slugify(string, Boolean.TRUE);
}
public static String slugify(String string, Boolean lowercase) {
string = noAccents(string);
// Apostrophes.
string = string.replaceAll("([a-z])'s([^a-z])", "$1s$2");
string = string.replaceAll("[^\\w]", "-").replaceAll("-{2,}", "-");
// Get rid of any - at the start and end.
string = string.replaceAll("-+$", "").replaceAll("^-+", "");
return (lowercase ? string.toLowerCase() : string);
}
public static String camelCase(String string) {
string = noAccents(string);
string = string.replaceAll("[^\\w ]", "");
StringBuilder result = new StringBuilder(string.length());
for (String part : string.split(" ")) {
result.append(capFirst(part));
}
return result.toString();
}
/**
* return the last item of a list or null if the List is null
*/
public static Object last(List items) {
return (items == null) ? null : items.get(items.size() - 1);
}
/**
* concatenate items of a collection as a string separated with separator
* items toString() method should be implemented to provide a string representation
*/
public static String join(Collection items, String separator) {
if (items == null) {
return "";
}
StringBuffer sb = new StringBuffer();
Iterator ite = items.iterator();
int i = 0;
while (ite.hasNext()) {
if (i++ > 0) {
sb.append(separator);
}
sb.append(ite.next());
}
return sb.toString();
}
}
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