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package com.sun.org.apache.xerces.internal.impl.msg;

import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import java.util.PropertyResourceBundle;

import com.sun.org.apache.xerces.internal.util.MessageFormatter;

/**
 * XMLMessageFormatter provides error messages for the XML 1.0 Recommendation and for 
 * the Namespaces Recommendation
 * 
 * @xerces.internal
 *
 * @author Eric Ye, IBM
 * @version $Id: XMLMessageFormatter_zh_CN.java 3021 2011-03-01 00:12:28Z joehw $
 *
 */
public class XMLMessageFormatter_zh_CN implements MessageFormatter {
    /**
     * The domain of messages concerning the XML 1.0 specification.
     */
    public static final String XML_DOMAIN = "http://www.w3.org/TR/1998/REC-xml-19980210";
    public static final String XMLNS_DOMAIN = "http://www.w3.org/TR/1999/REC-xml-names-19990114";

    // private objects to cache the locale and resource bundle
    private Locale fLocale = null;
    private ResourceBundle fResourceBundle = null;
    
    //
    // MessageFormatter methods
    //

    /**
     * Formats a message with the specified arguments using the given
     * locale information.
     * 
     * @param locale    The locale of the message.
     * @param key       The message key.
     * @param arguments The message replacement text arguments. The order
     *                  of the arguments must match that of the placeholders
     *                  in the actual message.
     * 
     * @return Returns the formatted message.
     *
     * @throws MissingResourceException Thrown if the message with the
     *                                  specified key cannot be found.
     */
    public String formatMessage(Locale locale, String key, Object[] arguments) 
        throws MissingResourceException {
        
        if (fResourceBundle == null || locale != fLocale) {
            if (locale != null) {
                fResourceBundle = PropertyResourceBundle.getBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLMessages", locale);
                // memorize the most-recent locale
                fLocale = locale;
            }
            if (fResourceBundle == null)
                fResourceBundle = PropertyResourceBundle.getBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLMessages");
        }
        
        // format message
        String msg;
        try {
            msg = fResourceBundle.getString(key);
            if (arguments != null) {
                try {
                    msg = java.text.MessageFormat.format(msg, arguments);
                } 
                catch (Exception e) {
                    msg = fResourceBundle.getString("FormatFailed");
                    msg += " " + fResourceBundle.getString(key);
                }
            } 
        }

        // error
        catch (MissingResourceException e) {
            msg = fResourceBundle.getString("BadMessageKey");
            throw new MissingResourceException(key, msg, key);
        }

        // no message
        if (msg == null) {
            msg = key;
            if (arguments.length > 0) {
                StringBuffer str = new StringBuffer(msg);
                str.append('?');
                for (int i = 0; i < arguments.length; i++) {
                    if (i > 0) {
                        str.append('&');
                    }
                    str.append(String.valueOf(arguments[i]));
                }
            }
        }

        return msg;
    }

}




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