import java.util.jar.*;
import java.io.*;
import java.util.*;

/**
 * @version 1.0 2002-03-21
 * @author Takashi KOBAYASHI
 */
public class jarscape {
	public static void main( String[] args ) {
		File file = new File( args[0] );
		if( ! file.exists() ) {
			System.out.println( args[0] + " not found." );
		}
		else {
			try {
			jarscape js = new jarscape( new JarFile( file ), args[0] );

			js.printMainAttributes();
			js.printFileAttributes();
			js.printFileEntries();

			}
			catch( IOException ioe ) {
				ioe.printStackTrace();
			}
		}
	}

	private String filename;
	private JarFile jar;

	public jarscape( JarFile jar, String filename ) {
		this.jar = jar;
		this.filename = filename;
	}

	public void printMainAttributes() throws IOException {
		Manifest mf = jar.getManifest();
		Attributes att = mf.getMainAttributes();

		Enumeration enm = jar.entries();

		System.out.println( filename + ": Manifest Main Attributes ***********" );
		Iterator itl = att.keySet().iterator();
		while( itl.hasNext() ) {
			Attributes.Name name = (Attributes.Name)itl.next();
			System.out.println( "key: " + name.toString() + ", value: " + att.getValue( name ) );
		}
		System.out.println();
	}

	public void printFileAttributes() throws IOException {
		Manifest mf = jar.getManifest();
		Attributes att;

		Enumeration enm = jar.entries();

		System.out.println( filename + ": Manifest File Attributes ***********" );
		while( enm.hasMoreElements() ) {
			String str = ( (JarEntry)enm.nextElement() ).getName();
			att = mf.getAttributes( str );
			if( att == null )
				continue;
			Iterator itl = att.keySet().iterator();
			System.out.println( "File Entry: " + str );
			while( itl.hasNext() ) {
				Attributes.Name name = (Attributes.Name)itl.next();
				System.out.println( "key: " + name.toString() + ", value: " + att.getValue( name ) );
			}
		}
		System.out.println();
	}

	public void printFileEntries() throws IOException {
		Enumeration enm = jar.entries();

		System.out.println( filename + ": File entries ***********************" );
		while( enm.hasMoreElements() )
			System.out.println( ( (JarEntry)enm.nextElement() ).getName() );
	}
}