ClassUtil.java

package org.coldswap.util;

/**
 * (C) Copyright 2013 Faur Ioan-Aurel.
 * <p/>
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License
 * (LGPL) version 2.1 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl-2.1.html
 * <p/>
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 * <p/>
 * Contributors:
 * faur
 * <p/>
 * Created at:
 * 3:56 PM       5/5/13
 */

import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Simple static methods with the main purpose to extract information's
 * from {@link Class} files.
 */
public class ClassUtil {
    private static final Logger logger = Logger.getLogger(ClassUtil.class.getName());
    public static final String fileSeparator = System.getProperty("file.separator");
    public static final String[] skipTransforming = {
            "java/applet",
            "java/awt",
            "java/beans",
            "java/io",
            "java/lang",
            "java/lang",
            "java/math",
            "java/net",
            "java/nio",
            "java/rmi",
            "java/security",
            "java/sql",
            "java/text",
            "java/util",
            "javax/accessibility",
            "javax/activation",
            "javax/activity",
            "javax/annotation",
            "javax/crypto",
            "javax/imageio",
            "javax/jws",
            "javax/lang",
            "javax/management",
            "javax/naming",
            "javax/net",
            "javax/print",
            "javax/rmi",
            "javax/script",
            "javax/security",
            "javax/sound",
            "javax/sql",
            "javax/swing",
            "javax/tools",
            "javax/transaction",
            "javax/xml",
            "junit/framework",
            "junit/awtui",
            "junit/extensions",
            "junit/runner",
            "junit/swingui",
            "junit/textui",
            "net/contentobjects",
            "org/ietf/jgss",
            "org/omg",
            "org/w3c",
            "org/xml/sax",
            "org/coldswap",
            "org/objectweb",
            "org/junit",
            "org/hamcrest",
            "sun/util",
            "sun/misc",
            "sun/net",
            "sun/nio",
            "sun/text",
            "sun/reflect",
            "sun/security",
            "com/intellij"

    };
    public static Level logLevel = Level.ALL;

    static {
        logger.setLevel(logLevel);
    }

    /**
     * Finds where is stored the bytecode of a class.
     *
     * @param aClass {@link Class} type containing intel about a class loaded into JVM.
     * @return returns the parent directory of class
     */
    @SuppressWarnings("ConstantConditions")
    public static String getClassPath(Class aClass) {
        String path;
        path = aClass.getClassLoader().getResource(
                aClass.getName().replace('.', '/') + ".class").toString();
        String parent = null;
        try {
            parent = new File(new URI(path)).getParent();
        } catch (URISyntaxException e) {
            logger.warning(e.toString());
        }
        return parent;
    }
}