import java.io.File;
import java.net.InetAddress;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.StringTokenizer;
import java.util.Vector;
 
public class FindClass
{
    public static void main(String[] args) throws Exception {
 
        String javaVer = System.getProperty("java.version") ;
        if( javaVer.startsWith("1.4") ) {
            log( "\n\nSorry somehow this program doesn't work with Java 1.4XXX !\nIf you're using \n\"execRTPenv java FindClass...\"\nthen you can try\n\"execRTPenv /vobs/devtools/java_sdk/bin/java FindClass...\".\n\n" ) ;
            System.exit(0);
        }
        String classToFind = null ;
 
        if( 0 == args.length ){
            log("Usage:\n\tjava -cp <classpath-to-search> FindClass <class-to-search>\n\n\tE.g.\n\t\tjava -cp $CLASSPATH FindClass ca.siemens.tic.smlc.lt.api.rtp.Log\n\n") ;
            System.exit(1) ;
        }
        else
            classToFind = args[0] ;
 
        log("\nTrying to search " + classToFind ) ;
        log("\n") ;
 
        try {
            StringTokenizer st =
                new StringTokenizer(System.getProperty("java.class.path"), System.getProperty("path.separator") ) ;
            int totalPaths = st.countTokens() ;
            Vector foundPaths = new Vector() ;
            Vector erroredPaths = new Vector() ;
            String thisPath = null ;
            for( int i = 0; i < totalPaths; i++ )
            {
                thisPath = st.nextToken() ;
                System.out.print( "Searching in " + Integer.toString(i+1) + ": \"" + thisPath + "\"") ;
                File thisPathFile = new File(thisPath) ;
 
                String checkStr = "OK" ;
                if( !thisPathFile.exists() || !thisPathFile.canRead() ) {
                    erroredPaths.add(Integer.toString(i+1) + ": \"" + thisPath + "\"") ;
                    log( "" ) ;
                    continue ;
                }
 
                if( thisPathFile.isDirectory() && thisPath.charAt(thisPath.length()-1) != '/' ) {
                    thisPath = new String( thisPath + '/' ) ;
                }
                else if ( thisPathFile.isFile() && thisPath.charAt(thisPath.length()-1) == '/' ) {
                    thisPath = thisPath.substring( 0, thisPath.length()-1 ) ;
                }
 
                URL thisURL = new URL("file", InetAddress.getLocalHost().getHostName(), thisPath.trim() ) ;
 
                URLClassLoader ul = new URLClassLoader( new URL[] { thisURL }, null ) ;
                //log( ul.getURLs() ) ;
                try {
                    ul.loadClass(classToFind) ;
                    //log("-->" + thisPath) ;
                    log( " *****" ) ;
                    foundPaths.add( Integer.toString(i+1) + ": \"" + thisPath + "\"" ) ;
                }
                catch( ClassNotFoundException e ) { log( "" ) ; }
            }
            log("\n\nResults:\n") ;
            if(erroredPaths.size() > 0 ) {
                log( "Following paths do not exist OR are not readable !" ) ;
                for(int j = 1; j < erroredPaths.size(); j++ )
                    log( "\t" + erroredPaths.get(j).toString() ) ;
            }
            if( foundPaths.size() == 0 )
            {
                log( "\nSorry Couldn't find given class in given CLASSPATH." ) ;
            }
            else
            {
                if( foundPaths.size() > 1 )
                {
                    log( "\nFirst found in: " + foundPaths.get(0) ) ;
                    log( "Also found in following " + Integer.toString(foundPaths.size()-1) + " path(s): " ) ;
                    for(int j = 1; j < foundPaths.size(); j++ )
                    {
                        log( "\t" + foundPaths.get(j).toString() ) ;
                    }
                }
                else
                    log("\nFound only in: " + foundPaths.get(0) ) ;
            }
            log("\n") ;
        } catch( Exception e ) {
            log( e ) ;
        }
    }
 
    public  FindClass() {
 
    }
 
    public static void log( Throwable e ){ System.out.println( e.getMessage() ) ; e.printStackTrace() ; }
    public static void log( String s ){ System.out.println( s ) ; }
    public static void log( URL[] s ){
        for(int i = 0 ; i< s.length; i++ )
            System.out.println( s[i] ) ;
    }
}