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Kernel for Resin Java Application Server
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/*
* Copyright (c) 1998-2012 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.util;
import java.io.InputStream;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Properties;
/**
* Localization
*/
public class L10N {
private static final HashMap _l10nMap
= new HashMap();
private Class _cl;
private Boolean _isMessageFileAvailable;
private Boolean _isStringFileAvailable;
private Properties _messages;
private Properties _strings;
public L10N(Class cl)
{
_cl = cl;
}
public String l(String msg)
{
msg = getTranslated(msg);
StringBuilder cb = new StringBuilder();
int length = msg.length();
int i = 0;
while (i < length) {
char ch = msg.charAt(i);
if (ch != '{' || i + 2 >= length) {
cb.append(ch);
i++;
}
else {
ch = msg.charAt(i + 1);
if (ch == '{') {
cb.append('{');
i += 2;
}
else if (ch == '{') {
cb.append('{');
i += 2;
}
else {
i = parseString(msg, i + 1, cb);
}
}
}
return cb.toString();
}
public String l(String msg, long l)
{
return l(msg, String.valueOf(l));
}
public String l(String msg, Object o)
{
msg = getTranslated(msg);
StringBuilder cb = new StringBuilder();
int length = msg.length();
int i = 0;
while (i < length) {
char ch = msg.charAt(i);
if (ch != '{' || i + 2 >= length) {
cb.append(ch);
i++;
}
else {
ch = msg.charAt(i + 1);
if (ch == '{') {
cb.append('{');
i += 2;
}
else if (ch == '0') {
cb.append(o);
i += 3;
}
else if (ch == '{') {
cb.append('{');
i += 2;
}
else {
i = parseString(msg, i + 1, cb);
}
}
}
return cb.toString();
}
public String l(String msg, Object o1, Object o2)
{
msg = getTranslated(msg);
StringBuilder cb = new StringBuilder();
int length = msg.length();
int i = 0;
while (i < length) {
char ch = msg.charAt(i);
if (ch != '{' || i + 2 >= length) {
cb.append(ch);
i++;
}
else {
ch = msg.charAt(i + 1);
if (ch == '{') {
cb.append('{');
i += 2;
}
else if (ch == '0') {
cb.append(o1);
i += 3;
}
else if (ch == '1') {
cb.append(o2);
i += 3;
}
else if (ch == '{') {
cb.append('{');
i += 2;
}
else {
i = parseString(msg, i + 1, cb);
}
}
}
return cb.toString();
}
public String l(String msg, Object o1, int i2)
{
return l(msg, o1, String.valueOf(i2));
}
public String l(String msg, int i1, int i2)
{
return l(msg, String.valueOf(i1), String.valueOf(i2));
}
public String l(String msg, Object o1, Object o2, Object o3)
{
msg = getTranslated(msg);
StringBuilder cb = new StringBuilder();
int length = msg.length();
int i = 0;
while (i < length) {
char ch = msg.charAt(i);
if (ch != '{' || i + 2 >= length) {
cb.append(ch);
i++;
}
else {
ch = msg.charAt(i + 1);
if (ch == '{') {
cb.append('{');
i += 2;
}
else if (ch == '0') {
cb.append(o1);
i += 3;
}
else if (ch == '1') {
cb.append(o2);
i += 3;
}
else if (ch == '2') {
cb.append(o3);
i += 3;
}
else if (ch == '{') {
cb.append('{');
i += 2;
}
else {
i = parseString(msg, i + 1, cb);
}
}
}
return cb.toString();
}
public String l(String msg, Object o1, Object o2, Object o3, Object o4)
{
msg = getTranslated(msg);
StringBuilder cb = new StringBuilder();
int length = msg.length();
int i = 0;
while (i < length) {
char ch = msg.charAt(i);
if (ch != '{' || i + 2 >= length) {
cb.append(ch);
i++;
}
else {
ch = msg.charAt(i + 1);
if (ch == '{') {
cb.append('{');
i += 2;
}
else if (ch == '0') {
cb.append(o1);
i += 3;
}
else if (ch == '1') {
cb.append(o2);
i += 3;
}
else if (ch == '2') {
cb.append(o3);
i += 3;
}
else if (ch == '3') {
cb.append(o4);
i += 3;
}
else if (ch == '{') {
cb.append('{');
i += 2;
}
else {
i = parseString(msg, i + 1, cb);
}
}
}
return cb.toString();
}
public String l(String msg, Object o1, Object o2,
Object o3, Object o4, Object o5)
{
msg = getTranslated(msg);
StringBuilder cb = new StringBuilder();
int length = msg.length();
int i = 0;
while (i < length) {
char ch = msg.charAt(i);
if (ch != '{' || length <= i + 1) {
cb.append(ch);
i++;
}
else {
ch = msg.charAt(i + 1);
if (ch == '{') {
cb.append('{');
i += 2;
}
else if (ch == '0') {
cb.append(o1);
i += 3;
}
else if (ch == '1') {
cb.append(o2);
i += 3;
}
else if (ch == '2') {
cb.append(o3);
i += 3;
}
else if (ch == '3') {
cb.append(o4);
i += 3;
}
else if (ch == '4') {
cb.append(o5);
i += 3;
}
else if (ch == '{') {
cb.append('{');
i += 2;
}
else {
i = parseString(msg, i + 1, cb);
}
}
}
return cb.toString();
}
public String l(String msg, Object o1, Object o2,
Object o3, Object o4, Object o5, Object o6)
{
msg = getTranslated(msg);
StringBuilder cb = new StringBuilder();
int length = msg.length();
int i = 0;
while (i < length) {
char ch = msg.charAt(i);
if (ch != '{' || i + 2 >= length) {
cb.append(ch);
i++;
}
else {
ch = msg.charAt(i + 1);
if (ch == '{') {
cb.append('{');
i += 2;
}
else if (ch == '0') {
cb.append(o1);
i += 3;
}
else if (ch == '1') {
cb.append(o2);
i += 3;
}
else if (ch == '2') {
cb.append(o3);
i += 3;
}
else if (ch == '3') {
cb.append(o4);
i += 3;
}
else if (ch == '4') {
cb.append(o5);
i += 3;
}
else if (ch == '5') {
cb.append(o6);
i += 3;
}
else if (ch == '{') {
cb.append('{');
i += 2;
}
else {
i = parseString(msg, i + 1, cb);
}
}
}
return cb.toString();
}
public String l(String msg, Object ...objects)
{
msg = getTranslated(msg);
return fillMessage(getStringMap(), msg, objects);
}
public static String fillMessage(String msg,
Object ...objects)
{
return fillMessage(null, msg, objects);
}
public static String fillMessage(Properties stringMap,
String msg,
Object ...objects)
{
StringBuilder cb = new StringBuilder();
int length = msg.length();
int i = 0;
while (i < length) {
char ch = msg.charAt(i);
if (ch != '{' || i + 2 >= length) {
cb.append(ch);
i++;
}
else {
ch = msg.charAt(i + 1);
if (ch == '{') {
cb.append('{');
i += 2;
}
else if ('0' <= ch && ch <= '9') {
int index = ch - '0';
Object value = objects[index];
if (value != null && (value instanceof Object[]))
cb.append(Arrays.asList((Object[]) value));
else
cb.append(objects[index]);
i += 3;
}
else if (ch == '{') {
cb.append('{');
i += 2;
}
else {
i = parseString(msg, i + 1, cb, stringMap);
}
}
}
return cb.toString();
}
private int parseString(String msg,
int i,
StringBuilder sb)
{
return parseString(msg, i, sb, getStringMap());
}
private static int parseString(String msg,
int i,
StringBuilder sb,
Properties stringMap)
{
StringBuilder arg = new StringBuilder();
int len = msg.length();
char ch;
for (; i < len && (ch = msg.charAt(i)) != '}'; i++) {
arg.append(ch);
}
// Properties stringMap = getStringMap();
if (stringMap != null) {
String string = (String) stringMap.get(arg.toString());
if (string != null) {
sb.append(string);
return i + 1;
}
}
sb.append('{');
sb.append(arg);
return i;
}
private String getTranslated(String msg)
{
Properties messages = getMessageMap();
if (messages == null)
return msg;
String translated = (String) messages.get(msg);
if (translated == null) {
return msg;
}
else
return translated;
}
private Properties getMessageMap()
{
if (_messages != null)
return _messages;
if (Boolean.FALSE.equals(_isMessageFileAvailable))
return null;
String name = _cl.getName().replace('.', '/');
int p = name.lastIndexOf('/');
if (p > 0)
name = name.substring(0, p);
name = name + "/messages";
_messages = _l10nMap.get(name);
if (_messages != null) {
_isMessageFileAvailable = Boolean.TRUE;
return _messages;
}
_messages = loadProperties(name);
if (_messages != null) {
_isMessageFileAvailable = Boolean.TRUE;
_l10nMap.put(name, _messages);
return _messages;
}
else {
_isMessageFileAvailable = Boolean.FALSE;
return null;
}
}
private Properties getStringMap()
{
if (_strings != null)
return _strings;
if (Boolean.FALSE.equals(_isStringFileAvailable))
return null;
String name = _cl.getName().replace('.', '/');
int p = name.lastIndexOf('/');
if (p > 0)
name = name.substring(0, p);
name = name + "/strings";
_strings = _l10nMap.get(name);
if (_strings != null) {
_isStringFileAvailable = Boolean.TRUE;
return _strings;
}
_strings = loadProperties(name);
if (_strings != null) {
_isStringFileAvailable = Boolean.TRUE;
_l10nMap.put(name, _strings);
return _strings;
}
else {
_isStringFileAvailable = Boolean.FALSE;
return null;
}
}
private Properties loadProperties(String name)
{
InputStream is = null;
try {
name = name + ".properties";
is = _cl.getClassLoader().getResourceAsStream(name);
if (is != null) {
Properties messages = new Properties();
messages.load(is);
return messages;
}
} catch (Exception e) {
e.printStackTrace();
// can't log in logging routines
} finally {
IoUtil.close(is);
}
return null;
}
}