/*
* $Id: Chapter.java 3373 2008-05-12 16:21:24Z xlv $
*
* This file is part of the iText (R) project.
* Copyright (c) 1998-2011 1T3XT BVBA
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
* 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* This program 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 Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* a covered work must retain the producer line in every PDF that is created
* or manipulated using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
* disclosing the source code of your own applications.
* These activities include: offering paid services to customers as an ASP,
* serving PDFs on the fly in a web application, shipping iText with a closed
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: [email protected]
*/
package com.itextpdf.text.error_messages;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.HashMap;
import com.itextpdf.text.pdf.BaseFont;
/**
* Localizes error messages. The messages are located in the package
* com.itextpdf.text.error_messages in the form language_country.lng.
* The internal file encoding is UTF-8 without any escape chars, it's not a
* normal property file. See en.lng for more information on the internal format.
* @author Paulo Soares ([email protected])
*/
public final class MessageLocalization {
private static HashMap<String, String> defaultLanguage = new HashMap<String, String>();
private static HashMap<String, String> currentLanguage;
private static final String BASE_PATH = "com/itextpdf/text/l10n/error/";
private MessageLocalization() {
}
static {
try {
defaultLanguage = getLanguageMessages("en", null);
} catch (Exception ex) {
// do nothing
}
if (defaultLanguage == null)
defaultLanguage = new HashMap<String, String>();
}
/**
* Get a message without parameters.
* @param key the key to the message
* @return the message
*/
public static String getMessage(String key) {
HashMap<String, String> cl = currentLanguage;
String val;
if (cl != null) {
val = cl.get(key);
if (val != null)
return val;
}
cl = defaultLanguage;
val = cl.get(key);
if (val != null)
return val;
return "No message found for " + key;
}
/**
* Get a message with one parameter as an primitive int. The parameter will replace the string
* "{1}" found in the message.
* @param key the key to the message
* @param p1 the parameter
* @return the message
*/
public static String getComposedMessage(String key, int p1) {
return getComposedMessage(key, String.valueOf(p1), null, null, null);
}
/**
* Get a message with param.length parameters or none if param is null. In
* the message the "{1}", "{2}" to "{lenght of param array}" are replaced
* with the object.toString of the param array. (with param[0] being "{1}")
*
* @since iText 5.0.6
* @param key
* the key to the message
* @param param array of parameter objects, (toString is used to add it to the message)
* @return the message
*/
public static String getComposedMessage(final String key, final Object... param) {
String msg = getMessage(key);
if (null != param) {
int i = 1;
for (Object o : param) {
if (null != o) {
msg = msg.replace("{" + i + "}", o.toString());
}
i++;
}
}
return msg;
}
/**
* Sets the language to be used globally for the error messages. The language
* is a two letter lowercase country designation like "en" or "pt". The country
* is an optional two letter uppercase code like "US" or "PT".
* @param language the language
* @param country the country
* @return true if the language was found, false otherwise
* @throws IOException on error
*/
public static boolean setLanguage(String language, String country) throws IOException {
HashMap<String, String> lang = getLanguageMessages(language, country);
if (lang == null)
return false;
currentLanguage = lang;
return true;
}
/**
* Sets the error messages directly from a Reader.
* @param r the Reader
* @throws IOException on error
*/
public static void setMessages(Reader r) throws IOException {
currentLanguage = readLanguageStream(r);
}
private static HashMap<String, String> getLanguageMessages(String language, String country) throws IOException {
if (language == null)
throw new IllegalArgumentException("The language cannot be null.");
InputStream is = null;
try {
String file;
if (country != null)
file = language + "_" + country + ".lng";
else
file = language + ".lng";
is = BaseFont.getResourceStream(BASE_PATH + file, new MessageLocalization().getClass().getClassLoader());
if (is != null)
return readLanguageStream(is);
if (country == null)
return null;
file = language + ".lng";
is = BaseFont.getResourceStream(BASE_PATH + file, new MessageLocalization().getClass().getClassLoader());
if (is != null)
return readLanguageStream(is);
else
return null;
}
finally {
try {
if (null != is){
is.close();
}
} catch (Exception exx) {
}
// do nothing
}
}
private static HashMap<String, String> readLanguageStream(InputStream is) throws IOException {
return readLanguageStream(new InputStreamReader(is, "UTF-8"));
}
private static HashMap<String, String> readLanguageStream(Reader r) throws IOException {
HashMap<String, String> lang = new HashMap<String, String>();
BufferedReader br = new BufferedReader(r);
String line;
while ((line = br.readLine()) != null) {
int idxeq = line.indexOf('=');
if (idxeq < 0)
continue;
String key = line.substring(0, idxeq).trim();
if (key.startsWith("#"))
continue;
lang.put(key, line.substring(idxeq + 1));
}
return lang;
}
}
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