ftpconnect.java

用java实现的摄像头编程

/*
 * Version 0.70 01/04/2002
 *
 * Visit my url for update: http://www.geocities.com/beapetrovicova/
 * 
 * jFtp was developed by Bea Petrovicova <[e-mail]>.
 * The design and implementation of jFtp are available for royalty-free 
 * adoption and use. This software is provided 'as is' without any 
 * guarantees. Copyright is retained by Bea Petrovicova. Redistribution 
 * of any part of jFtp or any derivative works must include this notice.
 * 
 */  
package cz.dhl.ftp;

import java.net.URL;
import java.net.URLEncoder;
import java.net.MalformedURLException;
import java.util.StringTokenizer;

/**
 * Wrapper for FTP connect & login information.
 * 
 * @Version 0.70 01/04/2002
 * @author Bea Petrovicova <[e-mail]>  
 * @see Ftp
 */
public final class FtpConnect
{  private String hostname = "ftp.netscape.com";
   private String pathname = "";
   
   private String username = "anonymous";
   private String password = "";
   
   private int portnum = 21;

   /** Creates default FtpConnect object.
    * <DL><DT>Initial values are:
    * <DD>&nbsp;&nbsp;hostname='ftp.netscape.com'; 
    * <DD>&nbsp;&nbsp;pathname=''; 
    * <DD>&nbsp;&nbsp;username='anonymous'
    * <DD>&nbsp;&nbsp;password=''
    * <DD>&nbsp;&nbsp;portnum=21</DL> */
   public FtpConnect() {}

   public String saveConnect(String hostname,String filename)
      throws MalformedURLException
   {  return URLEncoder.encode(
         (new URL("http",hostname,filename)).toString() +"?config=" +getConnect()); }
   
   /** Parses FtpConnect object into string representing 
    * command-line arguments concatenated by '|' character.
    * @see #newConnect(String []) */
   public String getConnect() throws MalformedURLException
   {  return (new URL("ftp",hostname,portnum,
         pathname)).toString() +"|-user|" +username; }

   /** Parses string representing command-line arguments 
    * concatenated by '|' character into FtpConnect object.
    * @see #newConnect(String []) */
   public static FtpConnect newConnect(String args)
   {  if(args!=null)
      {  StringTokenizer argt = new StringTokenizer(args,"|");
	 int n=argt.countTokens();
	 String argn[]=new String[n];
	 for(int i=0;i<n;i++)
	    argn[i]=argt.nextToken();
	 return newConnect(argn);
      } else return new FtpConnect();
   }

   /** Parses array of strings representing 
    * command-line arguments into FtpConnect object.
    * @param args Command-line arguments
    * <DL><DT>Following option values are recognized:
    * <DD>ftp://ftp.server.com:21/default/pathname/
    * <DD>&nbsp;&nbsp;hostname='ftp.server.com'; 
    * <DD>&nbsp;&nbsp;pathname='/default/pathname'; 
    * <DD>&nbsp;&nbsp;portnum=21
    * <DD>-user eternity 
    * <DD>&nbsp;&nbsp;username='eternity'</DL>
    * @return FtpConnect object */
   public static FtpConnect newConnect(String args[])
   {  FtpConnect connect = new FtpConnect();
      
      for(int i=0;i<args.length;i++)
	 if(args[i].startsWith("ftp:"))
	    try
	    {  URL argi = new URL(args[i]);
	       connect.hostname = argi.getHost();
	       String pathname = argi.getFile();
	       if(pathname.compareTo("/")!=0)
		  connect.pathname = pathname;
	       int portnum = argi.getPort();
	       if(portnum != -1)
		  connect.portnum = portnum;
	       break;
	    } catch (MalformedURLException e) { }
	    finally
	    {  for(i=0;i<(args.length-1);i++)
		  if(args[i].compareTo("-user")==0)
		     { connect.username = args[i+1]; break; } 
	       break;
	    }
      return connect;
   }
   
   /** Get ftp client hostname string. For example: <CODE>ftp.netscape.com</CODE> */
   public String getHostName() { return hostname; }
   /** Get initial pathname string. Empty string is indicating default directory. */
   public String getPathName() { return pathname; }
   /** Gets username string. */
   public String getUserName() { return username; }
   /** Gets password string. */
   public String getPassWord() { return password; }
   /** Gets socket port number. */
   public int getPortNum() { return portnum; }
   
   /** Sets ftp client hostname string. For example: <CODE>ftp.netscape.com</CODE> */
   public void setHostName(String hostname) { this.hostname = hostname; }
   /** Sets initial pathname string. Empty string is indicating default directory. */
   public void setPathName(String pathname) { this.pathname = pathname; }
   /** Sets username string. */
   public void setUserName(String username) { this.username = username; }
   /** Sets password string. */
   public void setPassWord(String password) { this.password = password; }
   /** Sets socket port number. */
   public void setPortNum(int portnum) { this.portnum = portnum; }
}