Java ClassPath Get getClassPath(Object obj, boolean bOnlyPath)

Description

get Class Path

License

Open Source License

Declaration

public static String getClassPath(Object obj, boolean bOnlyPath) 

Method Source Code

//package com.java2s;
/*//from  w w w. j a va  2 s  .  c om
 *  JClassPathHelper.java
 *
 *  Created on 5. Mai 2005, 21:15
 *
 *  Copyright (C) 5. Mai 2005  <Reiner>

 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

import java.net.URL;
import java.io.File;

public class Main {
    public static String getClassPath(Object obj, boolean bOnlyPath) {
        String path = null;
        if (obj != null) {
            String className = obj.getClass().getName();
            int index = className.lastIndexOf(".");
            if (index >= 0)
                className = className.substring(index + 1,
                        className.length());
            URL url = obj.getClass().getResource(className + ".class");
            if (url != null) {
                try {
                    String str = url.toString();
                    int endJar = str.indexOf("!/");
                    if (endJar >= 0) {
                        String prefix = "jar:";
                        url = new URL(
                                str.substring(prefix.length(), endJar));
                    }
                    File file = new File(url.toURI());
                    str = file.getAbsolutePath();
                    if (bOnlyPath) {
                        if ((index = str.lastIndexOf(File.separatorChar)) >= 0)
                            path = str.substring(0, index);
                        else
                            path = str; // ???
                    } else
                        path = str;
                } catch (Exception ex) {
                }
            }
        }
        return path;
    }
}

Related

1. getClassPath(Class clazz)
2. getClasspath(ClassLoader classLoader)
3. getClassPath(ClassLoader loader)
4. getClasspath(ClassLoader loader)
5. getClassPath(File dir)
6. getClassPath(String packageName, String name)
7. getClassPathAsString(ClassLoader classLoader)
8. getClasspathDir(Class klass)
9. getClasspathFile(Class clz)