com.sun.xml.ws.security.opt.impl.util.LocalStringManagerImpl Maven / Gradle / Ivy
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/*
* Copyright (c) 1997, 2022 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.ws.security.opt.impl.util;
import java.util.ResourceBundle;
import java.util.Locale;
import java.text.MessageFormat;
import com.sun.xml.wss.logging.LogDomainConstants;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Implementation of a local string manager.
* Provides access to i18n messages for classes that need them.
*/
public class LocalStringManagerImpl implements LocalStringManager {
private static Logger _logger = Logger.getLogger(LogDomainConstants.WSS_API_DOMAIN,
LogDomainConstants.WSS_API_DOMAIN_BUNDLE);
private Class defaultClass;
/**
* Create a string manager that looks for LocalStrings.properties in
* the package of the defaultClass.
* @param defaultClass Class whose package has default localized strings
*/
public LocalStringManagerImpl(Class defaultClass) {
this.defaultClass = defaultClass;
}
/**
* Get a localized string.
* Strings are stored in a single property file per package named
* LocalStrings[_locale].properties. Starting from the class of the
* caller, we walk up the class hierarchy until we find a package
* resource bundle that provides a value for the requested key.
*
* This simplifies access to resources, at the cost of checking for
* the resource bundle of several classes upon each call. However, due
* to the caching performed by ResourceBundle this seems
* reasonable.
*
*
Due to that, sub-classes must make sure they don't
* have conflicting resource naming.
* @param callerClass The object making the call, to allow per-package
* resource bundles
* @param key The name of the resource to fetch
* @param defaultValue The default return value if not found
* @return The localized value for the resource
*/
@Override
public String getLocalString(
Class callerClass,
String key,
String defaultValue
) {
Class stopClass = defaultClass.getSuperclass();
Class startClass = ((callerClass != null) ? callerClass :
defaultClass);
ResourceBundle resources = null;
boolean globalDone = false;
for (Class c = startClass;
c != stopClass && c != null;
c = c.getSuperclass()) {
globalDone = (c == defaultClass);
try {
// Construct the bundle name as LocalStrings in the
// caller class's package.
resources = ResourceBundle.getBundle(c.getName().substring(0, c.getName().lastIndexOf(".")) + ".LocalStrings", Locale.getDefault(), c.getClassLoader());
if ( resources != null ) {
String value = resources.getString(key);
if ( value != null )
return value;
}
} catch (Exception ex) {
}
}
// Look for a global resource (defined by defaultClass)
if ( ! globalDone ) {
return getLocalString(null, key, defaultValue);
} else {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE, "No local string for {0}", key);
return defaultValue;
}
}
/**
* Get a localized string from the package of the default class.
* @param key The name of the resource to fetch
* @param defaultValue The default return value if not found
* @return The localized string
*/
@Override
public String getLocalString(String key, String defaultValue) {
return getLocalString(null, key, defaultValue);
}
/**
* Get a local string for the caller and format the arguments accordingly.
* @param callerClass The caller (to walk through its class hierarchy)
* @param key The key to the local format string
* @param defaultFormat The default format if not found in the resources
* @param arguments The set of arguments to provide to the formatter
* @return A formatted localized string
*/
@Override
public String getLocalString(
Class callerClass,
String key,
String defaultFormat,
Object[] arguments
) {
MessageFormat f = new MessageFormat(
getLocalString(callerClass, key, defaultFormat));
for (int i = 0; i < arguments.length; i++) {
if ( arguments[i] == null ) {
arguments[i] = "null";
} else if ( !(arguments[i] instanceof String) &&
!(arguments[i] instanceof Number) &&
!(arguments[i] instanceof java.util.Date)) {
arguments[i] = arguments[i].toString();
}
}
return f.format(arguments);
}
/**
* Get a local string from the package of the default class and
* format the arguments accordingly.
* @param key The key to the local format string
* @param defaultFormat The default format if not found in the resources
* @param arguments The set of arguments to provide to the formatter
* @return A formatted localized string
*/
public String getLocalString(
String key,
String defaultFormat,
Object... arguments
) {
return getLocalString(null, key, defaultFormat, arguments);
}
}