com.creativewidgetworks.goldparser.util.FormatHelper Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of goldengine Show documentation
Java implementation of Devin Cook's GOLD Parser engine
There is a newer version: 5.0.5
package com.creativewidgetworks.goldparser.util;

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

public class FormatHelper {

    /**
     * Format a message with the given parameters. If the bundleName is not null then the message is
     * treated as a key in that bundle; the found resource will be used as the message to format.
     * 
     * This method provides a convenient wrapper for java.util.ResourceBundle and
     * java.text.MessageFormat operations because all exceptions are caught and a simple
     * concatenation of the original message and the parameters is returned.
     *
     * @param bundleName
     * @param message
     * @param parameters
     *
     * @return String
     */
    public static String formatMessage(String bundleName, String message, Object... parameters) {
        ResourceBundle bundle = null;
        
        if (bundleName != null && bundleName.trim().length() > 0) {
            try {
                bundle = ResourceBundle.getBundle(bundleName);
            } catch (MissingResourceException mre) {
                // Do nothing, we'll just use null
            }
        }
        
        return formatMessage(bundle, message, parameters);
    }

    /**
     * Format a message with the given parameters. If the bundle is not null then the message is
     * treated as a key in that bundle; the found resource will be used as the message to format.
     * 
     * This method provides a convenient wrapper for java.util.ResourceBundle and
     * java.text.MessageFormat operations because all exceptions are caught and a simple
     * concatenation of the original message and the parameters is returned.
     *
     * @param bundle
     * @param message
     * @param parameters
     *
     * @return String
     */
    public static String formatMessage(ResourceBundle bundle, String message, Object... parameters) {
        String formattedMessage = message;
        
        if (message != null) {
            // Lookup message in resource bundle, if applicable
            if (bundle != null) {
                try {
                    formattedMessage = bundle.getString(message);
                } catch (MissingResourceException mre) {
                    // Do nothing, we'll just use the message itself
                }
            }
            
            // Format message with parameters, if applicable
            if (parameters != null) {
                try {
                    formattedMessage = MessageFormat.format(formattedMessage, parameters);
                } catch(IllegalArgumentException iae) {
                    StringBuilder sb = new StringBuilder();
                    for (int i = 0; i < parameters.length; i++) {
                        sb.append("; ");
                        sb.append(parameters[i]);
                    }
                    formattedMessage += sb.toString();
                }
            }
        }
        
        return formattedMessage;
    }
    
}