Main.java Source code

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Here is the source code for Main.java

Source

/*
 * Copyright  2003-2008 The Apache Software Foundation.
 *
 *  Licensed 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.
 *
 */
import java.lang.reflect.InvocationTargetException;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;

public class Main {

    /**
     * This method will search for <code>resource</code> in different
     * places. The search order is as follows:
     * <ol>
     * <p><li>Search for <code>resource</code> using the thread context
     * class loader under Java2.
     * <p><li>Try one last time with
     * <code>ClassLoader.getSystemResource(resource)</code>, that is is
     * using the system class loader in JDK 1.2 and virtual machine's
     * built-in class loader in JDK 1.1.
     * </ol>
     * <p/>
     *
     * @param resource
     * @return TODO
     */
    public static URL getResource(String resource) {
        ClassLoader classLoader = null;
        URL url = null;
        try {
            classLoader = getTCL();
            if (classLoader != null) {
                url = classLoader.getResource(resource);
                if (url != null) {
                    return url;
                }
            }
        } catch (Throwable t) {

        }

        // Last ditch attempt: get the resource from the class path. It
        // may be the case that clazz was loaded by the Extension class
        // loader which the parent of the system class loader. Hence the
        // code below.

        return ClassLoader.getSystemResource(resource);
    }

    /**
     * Get the Thread context class loader.
     * <p/>
     *
     * @return the Thread context class loader
     * @throws IllegalAccessException
     * @throws InvocationTargetException
     */
    public static ClassLoader getTCL() throws IllegalAccessException, InvocationTargetException {
        return (ClassLoader) AccessController.doPrivileged(new PrivilegedAction() {
            public Object run() {
                return Thread.currentThread().getContextClassLoader();
            }
        });
    }
}