package play.templates;
import groovy.lang.Closure;
import groovy.util.XmlSlurper;
import groovy.util.slurpersupport.GPathResult;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
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.Map;
import java.util.TimeZone;
import org.apache.commons.lang.StringEscapeUtils;
import play.Logger;
import play.i18n.Lang;
import play.i18n.Messages;
import play.libs.I18N;
import play.mvc.Http;
import play.templates.BaseTemplate.RawData;
import play.utils.HTML;
/**
* Java extensions in templates
*/
public class JavaExtensions {
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 GPathResult asXml(String xml) {
try {
return (new XmlSlurper()).parseText(xml);
} catch (Exception e) {
throw new RuntimeException("invalid XML");
}
}
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<String> temp = new ArrayList<String>(Arrays.asList(array));
temp.remove(s);
return temp.toArray(new String[temp.size()]);
}
public static String toString(Closure closure) {
PrintWriter oldWriter = (PrintWriter) closure.getProperty("out");
StringWriter newWriter = new StringWriter();
closure.setProperty("out", new PrintWriter(newWriter));
closure.call();
closure.setProperty("out", oldWriter);
return newWriter.toString();
}
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;
}
public static RawData escapeHtml(String htmlToEscape) {
return new RawData(HTML.htmlEscape(htmlToEscape));
}
public static String escapeJavaScript(String str) {
return StringEscapeUtils.escapeJavaScript(str);
}
public static RawData raw(Object val) {
return new RawData(val);
}
public static RawData raw(Object val, Object condition) {
if (eval(condition)) {
return new RawData(val);
}
return new RawData("");
}
public static RawData asAttr(Map attributes, Object condition) {
if (eval(condition)) {
return asAttr(attributes);
}
return new RawData("");
}
public static RawData asAttr(Map attributes) {
StringBuffer buf = new StringBuffer();
for (Object key : attributes.keySet()) {
buf.append(key + "=\"" + attributes.get(key) + "\" ");
}
return new RawData(buf);
}
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 escapeXml(String str) {
return StringEscapeUtils.escapeXml(str);
}
public static String format(Number number, String pattern) {
DecimalFormatSymbols symbols = new DecimalFormatSymbols(new Locale(Lang.get()));
return new DecimalFormat(pattern, symbols).format(number);
}
public static String format(Date date) {
// Get the pattern from the configuration
return new SimpleDateFormat(I18N.getDateFormat()).format(date);
}
public static String format(Date date, String pattern) {
return format(date, pattern, Lang.get());
}
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 since(Date date) {
return since(date, false);
}
public static String since(Date date, Boolean stopAtMonth) {
Date now = new Date();
if (now.before(date)) {
return "";
}
long delta = (now.getTime() - date.getTime()) / 1000;
if (delta < 60) {
return Messages.get("since.seconds", delta, pluralize(delta));
}
if (delta < 60 * 60) {
long minutes = delta / 60;
return Messages.get("since.minutes", minutes, pluralize(minutes));
}
if (delta < 24 * 60 * 60) {
long hours = delta / (60 * 60);
return Messages.get("since.hours", hours, pluralize(hours));
}
if (delta < 30 * 24 * 60 * 60) {
long days = delta / (24 * 60 * 60);
return Messages.get("since.days", days, pluralize(days));
}
if (stopAtMonth) {
return asdate(date.getTime(), Messages.get("since.format"));
}
if (delta < 365 * 24 * 60 * 60) {
long months = delta / (30 * 24 * 60 * 60);
return Messages.get("since.months", months, pluralize(months));
}
long years = delta / (365 * 24 * 60 * 60);
return Messages.get("since.years", years, pluralize(years));
}
public static String asdate(Long timestamp, String pattern) {
return asdate(timestamp, pattern, Lang.get());
}
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 RawData nl2br(Object data) {
return new RawData(data.toString().replace("\n", "<br/>"));
}
public static String urlEncode(String entity) {
try {
return URLEncoder.encode(entity, Http.Response.current().encoding);
} catch (UnsupportedEncodingException e) {
Logger.error(e, entity);
}
return entity;
}
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, String currencyCode) {
Currency currency = Currency.getInstance(currencyCode);
NumberFormat numberFormat = NumberFormat.getCurrencyInstance(new Locale(Lang.get()));
numberFormat.setCurrency(currency);
numberFormat.setMaximumFractionDigits(currency.getDefaultFractionDigits());
String s = numberFormat.format(number);
s = s.replace(currencyCode, I18N.getCurrencySymbol(currencyCode));
return s;
}
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 RawData escape(Object o) {
String string = o.toString();
return escapeHtml(string);
}
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 < 2) {
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) {
return Normalizer.normalize(string, Normalizer.Form.NFKC).replaceAll("[àáâãäåāąă]", "a").replaceAll("[çćčĉċ]", "c").replaceAll("[ďđð]", "d").replaceAll("[èéêëēęěĕė]", "e").replaceAll("[ƒſ]", "f").replaceAll("[ĝğġģ]", "g").replaceAll("[ĥħ]", "h").replaceAll("[ìíîïīĩĭįı]", "i").replaceAll("[ijĵ]", "j").replaceAll("[ķĸ]", "k").replaceAll("[łľĺļŀ]", "l").replaceAll("[ñńňņʼnŋ]", "n").replaceAll("[òóôõöøōőŏœ]", "o").replaceAll("[Þþ]", "p").replaceAll("[ŕřŗ]", "r").replaceAll("[śšşŝș]", "s").replaceAll("[ťţŧț]", "t").replaceAll("[ùúûüūůűŭũų]", "u").replaceAll("[ŵ]", "w").replaceAll("[ýÿŷ]", "y").replaceAll("[žżź]", "z").replaceAll("[æ]", "ae").replaceAll("[ÀÁÂÃÄÅĀĄĂ]", "A").replaceAll("[ÇĆČĈĊ]", "C").replaceAll("[ĎĐÐ]", "D").replaceAll("[ÈÉÊËĒĘĚĔĖ]", "E").replaceAll("[ĜĞĠĢ]", "G").replaceAll("[ĤĦ]", "H").replaceAll("[ÌÍÎÏĪĨĬĮİ]", "I").replaceAll("[Ĵ]", "J").replaceAll("[Ķ]", "K").replaceAll("[ŁĽĹĻĿ]", "L").replaceAll("[ÑŃŇŅŊ]", "N").replaceAll("[ÒÓÔÕÖØŌŐŎ]", "O").replaceAll("[ŔŘŖ]", "R").replaceAll("[ŚŠŞŜȘ]", "S").replaceAll("[ÙÚÛÜŪŮŰŬŨŲ]", "U").replaceAll("[Ŵ]", "W").replaceAll("[ÝŶŸ]", "Y").replaceAll("[ŹŽŻ]", "Z").replaceAll("[ß]", "ss");
}
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$2");
string = string.replaceAll("[^\\w]", "-").replaceAll("-{2,}", "-");
// Get rid of any - at the start and end.
string.replaceAll("-+$", "").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();
}
public static String yesno(Object o, String[] values) {
boolean value = play.templates.FastTags._evaluateCondition(o);
if (value) {
return values[0];
}
return values[1];
}
/**
* 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 <tt>separator</tt>
* 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();
}
}