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// 
// ========================================================================
// Copyright (c) 1995-2022 Mort Bay Consulting Pty Ltd and others.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// 
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
// 
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// 
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
// 
package org.eclipse.jetty.util;

import java.net.URL;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

/**
 *  ClassLoader Helper.
 *  This helper class allows classes to be loaded either from the
 *  Thread's ContextClassLoader, the classloader of the derived class
 *  or the system ClassLoader.
 *
 *  Usage: *  public class MyClass {
 *  void myMethod() {
 *  ...
 *  Class c=Loader.loadClass(this.getClass(),classname);
 *  ...
 *  }
 *  
 *
 * @deprecated The Eclipse Jetty and Apache Felix Http Jetty packages are no longer supported.
 */
@Deprecated(since = "2021-05-27")
public class Loader {

    public static URL getResource(String name) {
        ClassLoader loader = Thread.currentThread().getContextClassLoader();
        return loader == null ? ClassLoader.getSystemResource(name) : loader.getResource(name);
    }

    /**
     * Load a class.
     * Load a class either from the thread context classloader or if none, the system
     * loader
     *
     * @param name the name of the new class to load
     * @return Class
     * @throws ClassNotFoundException if not able to find the class
     */
    @SuppressWarnings("rawtypes")
    public static Class loadClass(String name) throws ClassNotFoundException {
        ClassLoader loader = Thread.currentThread().getContextClassLoader();
        return (loader == null) ? Class.forName(name) : loader.loadClass(name);
    }

    /**
     * Load a class.
     * Load a class from the same classloader as the passed  loadClass, or if none
     * then use {@link #loadClass(String)}
     *
     * @param loaderClass a similar class, belong in the same classloader of the desired class to load
     * @param name the name of the new class to load
     * @return Class
     * @throws ClassNotFoundException if not able to find the class
     */
    @SuppressWarnings("rawtypes")
    public static Class loadClass(Class loaderClass, String name) throws ClassNotFoundException {
        if (loaderClass != null && loaderClass.getClassLoader() != null)
            return loaderClass.getClassLoader().loadClass(name);
        return loadClass(name);
    }

    public static ResourceBundle getResourceBundle(String name, boolean checkParents, Locale locale) throws MissingResourceException {
        ClassLoader loader = Thread.currentThread().getContextClassLoader();
        return loader == null ? ResourceBundle.getBundle(name, locale) : ResourceBundle.getBundle(name, locale, loader);
    }
}