Quelle Localizer.java Sprache: JAVA

/*
* 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.
*/
package org.apache.jasper.compiler;

import java.text.MessageFormat;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.apache.jasper.runtime.ExceptionUtils;

/**
* Class responsible for converting error codes to corresponding localized
* error messages.
*
* @author Jan Luehe
*/
public class Localizer {

    private static ResourceBundle bundle;

    static {
        try {
            bundle = ResourceBundle.getBundle("org.apache.jasper.resources.LocalStrings");
        } catch (Throwable t) {
            ExceptionUtils.handleThrowable(t);
        }
    }

    /*
     * Returns the localized error message corresponding to the given error
     * code.
     *
     * If the given error code is not defined in the resource bundle for
     * localized error messages, it is used as the error message.
     *
     * @param errCode Error code to localize
     *
     * @return Localized error message
     */
    public static String getMessage(String errCode) {
        String errMsg = errCode;
        try {
            if (bundle != null) {
                errMsg = bundle.getString(errCode);
            }
        } catch (MissingResourceException e) {
        }
        return errMsg;
    }

    /*
     * Returns the localized error message corresponding to the given error
     * code.
     *
     * If the given error code is not defined in the resource bundle for
     * localized error messages, it is used as the error message.
     *
     * @param errCode Error code to localize
     * @param args Arguments for parametric replacement
     *
     * @return Localized error message
     */
    public static String getMessage(String errCode, Object... args) {
        String errMsg = getMessage(errCode);

        if (args != null && args.length > 0) {
            MessageFormat formatter = new MessageFormat(errMsg);
            errMsg = formatter.format(args);
        }

        return errMsg;
    }
}

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