org.htmlunit.cyberneko.xerces.util.SAXMessageFormatter Maven / Gradle / Ivy

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/*
 * Copyright 2017-2023 Ronald Brill
 *
 * Licensed 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
 * https://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.
 */
package org.htmlunit.cyberneko.xerces.util;

import java.util.MissingResourceException;
import java.util.ResourceBundle;

/**
 * Used to format SAX error messages.
 *
 * @author Michael Glavassevich, IBM
 */
public class SAXMessageFormatter {

    /**
     * Formats a message with the specified arguments.
     *
     * @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 the formatted message.
     *
     * @throws MissingResourceException Thrown if the message with the specified key
     *                                  cannot be found.
     */
    public static String formatMessage(final String key, final Object[] arguments) throws MissingResourceException {
        final ResourceBundle resourceBundle = ResourceBundle.getBundle("org.htmlunit.cyberneko.xerces.impl.msg.SAXMessages");

        // format message
        String msg;
        try {
            msg = resourceBundle.getString(key);
            if (arguments != null) {
                try {
                    msg = java.text.MessageFormat.format(msg, arguments);
                }
                catch (final Exception e) {
                    msg = resourceBundle.getString("FormatFailed");
                    msg += " " + resourceBundle.getString(key);
                }
            }
        }

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

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