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<%@ page import="java.util.*" %>
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<%
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/*
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* Copyright 2005 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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%>
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<%!
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/*
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* A library file to produce i18n web applications. This can be easily
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* reused from your jsp(s) - just include and call any methods.
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* @author toshi
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*/
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// private variable
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HttpServletRequest _req = null;
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// private variable
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String _strResourceName = null;
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/**
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* Set a HttpServletRequest to a private variable.
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* @param request HttpServletRequest
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*/
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void setRequest(HttpServletRequest request) {
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_req = request;
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}
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/**
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* Get the private variable of the HttpServletRequest.
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* @return HttpServletRequest
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*/
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HttpServletRequest getRequest() {
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return _req;
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}
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/**
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* Set a resouce base name to a private variable.
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* @param resouce The resouce base name
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*/
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void setResouceBase(String resource) {
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_strResourceName = resource;
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}
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/**
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* Get the private variable of the resouce base name.
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* @return resouce The resouce base name
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*/
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String getResouceBase() {
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return _strResourceName;
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}
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/**
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* Get a ResourceBundle object.
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* @return a ResourceBundle object
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*/
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ResourceBundle getRB() {
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String strLocale = getRequest().getParameter("locale");
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ResourceBundle objRb = null;
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Locale objLcl = null;
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if (strLocale!=null) {
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objLcl=new Locale(strLocale,"");
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} else {
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objLcl=getRequest().getLocale();
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}
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Locale.setDefault(objLcl);
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objRb = ResourceBundle.getBundle(getResouceBase(),objLcl);
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return objRb;
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}
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/**
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* Get a list of locale choice
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* @return a list of supported locales
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*/
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String getLocaleChoice() {
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String choice = getMessage("locales");
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StringBuffer buf = new StringBuffer();
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buf.append("<div align=\"right\">\n");
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buf.append(getMessage("language"));
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buf.append(": ");
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StringTokenizer st = new StringTokenizer(choice);
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String locale = null;
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while (st.hasMoreTokens()) {
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locale = st.nextToken();
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buf.append("[<a href=\"?locale="+ locale +"\">"+ locale +"</a>] ");
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}
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buf.append("\n</div>\n");
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return buf.toString();
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}
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/**
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* Get a message from i18n.properties with several arguments.
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* @param key The resource key
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* @return The formatted message
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*/
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String getMessage(String key) {
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return getMessage(key, null, null, null, null, null);
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}
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/**
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* Get a message from i18n.properties with several arguments.
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* @param key The resource key
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* @param arg0 The argument to place in variable {0}
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* @return The formatted message
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*/
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String getMessage(String key, String arg0) {
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return getMessage(key, arg0, null, null, null, null);
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}
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/**
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* Get a message from i18n.properties with several arguments.
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* @param key The resource key
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* @param arg0 The argument to place in variable {0}
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* @param arg1 The argument to place in variable {1}
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* @return The formatted message
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*/
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String getMessage(String key, String arg0, String arg1) {
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return getMessage(key, arg0, arg1, null, null, null);
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}
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/**
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* Get a message from i18n.properties with several arguments.
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* @param key The resource key
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* @param arg0 The argument to place in variable {0}
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* @param arg1 The argument to place in variable {1}
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* @param arg2 The argument to place in variable {2}
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* @return The formatted message
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*/
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String getMessage(String key, String arg0, String arg1, String arg2) {
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return getMessage(key, arg0, arg1, arg2, null, null);
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}
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/**
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* Get a message from i18n.properties with several arguments.
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* @param key The resource key
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* @param arg0 The argument to place in variable {0}
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* @param arg1 The argument to place in variable {1}
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* @param arg2 The argument to place in variable {2}
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* @param arg3 The argument to place in variable {3}
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* @return The formatted message
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*/
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String getMessage(String key, String arg0, String arg1,
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String arg2, String arg3) {
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return getMessage(key, arg0, arg1, arg2, arg3, null);
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}
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/**
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* Get a message from i18n.properties with several arguments.
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* @param key The resource key
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* @param arg0 The argument to place in variable {0}
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* @param arg1 The argument to place in variable {1}
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* @param arg2 The argument to place in variable {2}
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* @param arg3 The argument to place in variable {3}
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* @param arg4 The argument to place in variable {4}
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* @return The formatted message
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*/
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String getMessage(String key, String arg0, String arg1,
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String arg2, String arg3, String arg4) {
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String strPattern = getRB().getString(key);
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String [] params = { arg0, arg1, arg2, arg3, arg4 };
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for (int i=0; i<5; i++) {
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if (params[i]!=null) params[i]=replaceAll(params[i],"%20"," ");
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}
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if (arg0!=null) strPattern = replaceAll(strPattern,"{0}",params[0]);
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if (arg1!=null) strPattern = replaceAll(strPattern,"{1}",params[1]);
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if (arg2!=null) strPattern = replaceAll(strPattern,"{2}",params[2]);
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if (arg3!=null) strPattern = replaceAll(strPattern,"{3}",params[3]);
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if (arg4!=null) strPattern = replaceAll(strPattern,"{4}",params[4]);
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return strPattern;
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}
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/**
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* Get a replaced string by the specified message.
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* @param source The original message
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* @param pattern The key message for replacing
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* @param replace The message to place in the key variable - 'pattern'
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* @return The replaced message
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*/
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String replaceAll(String source, String pattern, String replace)
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{
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int i=0;
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boolean ret = false;
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StringBuffer buf = new StringBuffer();
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int lenSource = source.length();
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int lenPattern = pattern.length();
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for (i=0; i<lenSource; i++) {
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ret = source.regionMatches(i, pattern, 0, lenPattern);
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if (ret) {
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buf.append(source.substring(0,i));
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buf.append(replace);
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buf.append(source.substring(i+lenPattern));
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source = replaceAll(buf.toString(), pattern, replace);
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break;
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}
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}
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return source;
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}
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%>
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