com.itextpdf.awt.geom.misc.Messages Maven / Gradle / Ivy
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This code was originally part of the Apache Harmony project.
* The Apache Harmony project has been discontinued.
* That's why we imported the code into iText.
*/
/*
* THE FILE HAS BEEN AUTOGENERATED BY MSGTOOL TOOL.
* All changes made to this file manually will be overwritten
* if this tool runs again. Better make changes in the template file.
*/
package com.itextpdf.awt.geom.misc;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
/**
* This class retrieves strings from a resource bundle and returns them,
* formatting them with MessageFormat when required.
*
* It is used by the system classes to provide national language support, by
* looking up messages in the
* com.itextpdf.text.geom.misc.messages
*
* resource bundle. Note that if this file is not available, or an invalid key
* is looked up, or resource bundle support is not available, the key itself
* will be returned as the associated message. This means that the KEY
* should a reasonable human-readable (English) string.
*
*/
public class Messages {
// ResourceBundle holding the system messages.
static private ResourceBundle bundle = null;
/**
* Retrieves a message which has no arguments.
*
* @param msg
* String the key to look up.
* @return String the message for that key in the system message bundle.
*/
static public String getString(String msg) {
if (bundle == null)
return msg;
try {
return bundle.getString(msg);
} catch (MissingResourceException e) {
return "Missing message: " + msg; //$NON-NLS-1$
}
}
/**
* Retrieves a message which takes 1 argument.
*
* @param msg
* String the key to look up.
* @param arg
* Object the object to insert in the formatted output.
* @return String the message for that key in the system message bundle.
*/
static public String getString(String msg, Object arg) {
return getString(msg, new Object[] { arg });
}
/**
* Retrieves a message which takes 1 integer argument.
*
* @param msg
* String the key to look up.
* @param arg
* int the integer to insert in the formatted output.
* @return String the message for that key in the system message bundle.
*/
static public String getString(String msg, int arg) {
return getString(msg, new Object[] { Integer.toString(arg) });
}
/**
* Retrieves a message which takes 1 character argument.
*
* @param msg
* String the key to look up.
* @param arg
* char the character to insert in the formatted output.
* @return String the message for that key in the system message bundle.
*/
static public String getString(String msg, char arg) {
return getString(msg, new Object[] { String.valueOf(arg) });
}
/**
* Retrieves a message which takes 2 arguments.
*
* @param msg
* String the key to look up.
* @param arg1
* Object an object to insert in the formatted output.
* @param arg2
* Object another object to insert in the formatted output.
* @return String the message for that key in the system message bundle.
*/
static public String getString(String msg, Object arg1, Object arg2) {
return getString(msg, new Object[] { arg1, arg2 });
}
/**
* Retrieves a message which takes several arguments.
*
* @param msg
* String the key to look up.
* @param args
* Object[] the objects to insert in the formatted output.
* @return String the message for that key in the system message bundle.
*/
static public String getString(String msg, Object[] args) {
String format = msg;
if (bundle != null) {
try {
format = bundle.getString(msg);
} catch (MissingResourceException e) {
}
}
return format(format, args);
}
/**
* Generates a formatted text string given a source string containing
* "argument markers" of the form "{argNum}" where each argNum must be in
* the range 0..9. The result is generated by inserting the toString of each
* argument into the position indicated in the string.
*
* To insert the "{" character into the output, use a single backslash
* character to escape it (i.e. "\{"). The "}" character does not need to be
* escaped.
*
* @param format
* String the format to use when printing.
* @param args
* Object[] the arguments to use.
* @return String the formatted message.
*/
public static String format(String format, Object[] args) {
StringBuilder answer = new StringBuilder(format.length()
+ (args.length * 20));
String[] argStrings = new String[args.length];
for (int i = 0; i < args.length; ++i) {
if (args[i] == null)
argStrings[i] = ""; //$NON-NLS-1$
else
argStrings[i] = args[i].toString();
}
int lastI = 0;
for (int i = format.indexOf('{', 0); i >= 0; i = format.indexOf('{',
lastI)) {
if (i != 0 && format.charAt(i - 1) == '\\') {
// It's escaped, just print and loop.
if (i != 1)
answer.append(format.substring(lastI, i - 1));
answer.append('{');
lastI = i + 1;
} else {
// It's a format character.
if (i > format.length() - 3) {
// Bad format, just print and loop.
answer.append(format.substring(lastI, format.length()));
lastI = format.length();
} else {
int argnum = (byte) Character.digit(format.charAt(i + 1),
10);
if (argnum < 0 || format.charAt(i + 2) != '}') {
// Bad format, just print and loop.
answer.append(format.substring(lastI, i + 1));
lastI = i + 1;
} else {
// Got a good one!
answer.append(format.substring(lastI, i));
if (argnum >= argStrings.length)
answer.append(""); //$NON-NLS-1$
else
answer.append(argStrings[argnum]);
lastI = i + 3;
}
}
}
}
if (lastI < format.length())
answer.append(format.substring(lastI, format.length()));
return answer.toString();
}
}