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package org.glassfish.web.loader;

import java.text.MessageFormat;
import java.util.*;

/**
 * An internationalization / localization helper class which reduces
 * the bother of handling ResourceBundles and takes care of the
 * common cases of message formating which otherwise require the
 * creation of Object arrays and such.
 *
 * 

The StringManager operates on a package basis. One StringManager * per package can be created and accessed via the getManager method * call. * *

The StringManager will look for a ResourceBundle named by * the package name given plus the suffix of "LocalStrings". In * practice, this means that the localized information will be contained * in a LocalStrings.properties file located in the package * directory of the classpath. * *

Please see the documentation for java.util.ResourceBundle for * more information. * * @author James Duncan Davidson [[email protected]] * @author James Todd [[email protected]] */ public class StringManager { // START SJSAS 6412710 private final HashMap bundles = new HashMap(5); private String bundleName = null; // END SJSAS 6412710 /** * Creates a new StringManager for a given package. This is a * private method and all access to it is arbitrated by the * static getManager method call so that only one StringManager * per package will be created. * * @param packageName Name of package to create StringManager for. */ private StringManager(String packageName) { /* 6412710 String bundleName = packageName + ".LocalStrings"; */ // START SJSAS 6412710 this.bundleName = packageName + ".LocalStrings"; // END SJSAS 6412710 } /** * Get a string from the underlying resource bundle. * * @param key */ public String getString(String key) { /* SJSAS 6412710 return MessageFormat.format(getStringInternal(key),(Object[]) null); */ // START SJSAS 6412710 return getString(key, Locale.getDefault()); // END SJSAS 6412710 } // START SJSAS 6412710 public String getString(String key, Locale locale) { return MessageFormat.format(getStringInternal(key, locale), (Object[]) null); } // END SJSAS 6412710 protected String getStringInternal(String key) { // START SJSAS 6412710 return getStringInternal(key, Locale.getDefault()); } protected String getStringInternal(String key, Locale locale) { // END SJSAS 6412710 if (key == null) { String msg = "key is null"; throw new NullPointerException(msg); } // START SJSAS 6412710 ResourceBundle bundle = bundles.get(locale); if (bundle == null) { synchronized (bundles) { try { bundle = ResourceBundle.getBundle(this.bundleName, locale); bundles.put(locale, bundle); } catch( MissingResourceException ex ) { // Try from the current loader ( that's the case for trusted apps ) ClassLoader cl=Thread.currentThread().getContextClassLoader(); if( cl != null ) { bundle = ResourceBundle.getBundle(this.bundleName, locale, cl); bundles.put(locale, bundle); } } } } // END SJSAS 6412710 if( bundle==null ) return key; try { return bundle.getString(key); } catch (MissingResourceException mre) { return "Cannot find message associated with key '" + key + "'"; } } /** * Get a string from the underlying resource bundle and format * it with the given set of arguments. * * @param key * @param args */ public String getString(String key, Object[] args) { // START SJSAS 6412710 return getString(key, args, Locale.getDefault()); } public String getString(String key, Object[] args, Locale locale) { // END SJSAS 6412710 String iString; /* 6412710 String value = getStringInternal(key); */ // START SJSAS 6412710 String value = getStringInternal(key, locale); // END SJSAS 6412710 // this check for the runtime exception is some pre 1.1.6 // VM's don't do an automatic toString() on the passed in // objects and barf out try { // ensure the arguments are not null so pre 1.2 VM's don't barf Object nonNullArgs[] = args; for (int i=0; i



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