?
Solved

JSCH libraries asking for Kerberos username and password

Posted on 2014-11-10
3
Medium Priority
?
703 Views
Last Modified: 2014-12-14
I am trying to download a file from a remote file server to my local. I pasted the code at the end of this question. I am getting command prompts as below -

Kerberos username [kalla]: USER1
Kerberos password for test: PWD

Open in new window


Even if I enter values for above queries, I am getting FileNotFound error. How can I fix it?

CODE:

import java.io.File;
import java.io.FileInputStream;
import java.util.Properties;
import org.apache.commons.vfs2.FileObject;
import org.apache.commons.vfs2.FileSystemOptions;
import org.apache.commons.vfs2.Selectors;
import org.apache.commons.vfs2.impl.StandardFileSystemManager;
import org.apache.commons.vfs2.provider.sftp.SftpFileSystemConfigBuilder;

public class GetMyFiles {
	static Properties props;

	public static void main(String[] args) {
		GetMyFiles getMyFiles = new GetMyFiles();
		String propertiesFilename = "C:\\Users\\USER1\\workspace\\Test\\src\\Config.properties";
		String fileToDownload = "FileToBeDownloaded.txt";
		getMyFiles.startFTP(propertiesFilename, fileToDownload);
	}

	public boolean startFTP(String propertiesFilename, String fileToDownload) {
		props = new Properties();
		StandardFileSystemManager manager = new StandardFileSystemManager();
		try {
			props.load(new FileInputStream(propertiesFilename));
			String serverAddress = props.getProperty("serverAddress").trim();
			String userId = props.getProperty("userId").trim();
			String password = props.getProperty("password").trim();
			String remoteDirectory = props.getProperty("remoteDirectory").trim();
			String localDirectory = props.getProperty("localDirectory").trim();
			// Initializes the file manager
			manager.init();
			// Setup our SFTP configuration
			FileSystemOptions opts = new FileSystemOptions();
			SftpFileSystemConfigBuilder.getInstance().setStrictHostKeyChecking(opts, "no");
			SftpFileSystemConfigBuilder.getInstance().setUserDirIsRoot(opts, true);
			SftpFileSystemConfigBuilder.getInstance().setTimeout(opts, 10000);
			// Create the SFTP URI using the host name, userid, password, remote
			// path and file name
			String sftpUri = "sftp://" + userId + ":" + password + "@"
					+ serverAddress + "/" + remoteDirectory + fileToDownload;
			// Create local file object
			String filepath = localDirectory + fileToDownload;
			File file = new File(filepath);
			FileObject localFile = manager.resolveFile(file.getAbsolutePath());
			// Create remote file object
			FileObject remoteFile = manager.resolveFile(sftpUri, opts);
			// Copy local file to sftp server
			localFile.copyFrom(remoteFile, Selectors.SELECT_SELF);
			System.out.println("File download successful");
		} catch (Exception ex) {
			ex.printStackTrace();
			return false;
		} finally {
			manager.close();
		}
		return true;
	}
}

Open in new window

0
Comment
Question by:Ravi Kalla
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 21

Expert Comment

by:Amitkumar Panchal
ID: 40446016
Looking at the imports in the program, it seems program does not use JSCH library.

In case of JSCH, the imports should be like given below:

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;

If you are looking for an example to download a file using SFTP protocol, refer below links.
1. http://www.jcraft.com/jsch/examples/Sftp.java.html (This is homepage for JSCH api developers and good example is already given)
2. http://kodehelp.com/java-program-for-downloading-file-from-sftp-server/ (Admin will not allow this, if it is violating a policy.)
0
 
LVL 6

Accepted Solution

by:
Ravi Kalla earned 0 total points
ID: 40489945
I am using WinSCP scripts and triggering them using Java.
0
 
LVL 6

Author Closing Comment

by:Ravi Kalla
ID: 40498713
This is the solution that worked for me.
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

An old method to applying the Singleton pattern in your Java code is to check if a static instance, defined in the same class that needs to be instantiated once and only once, is null and then create a new instance; otherwise, the pre-existing insta…
Introduction This article is the first of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article explains our test automation goals. Then rationale is given for the tools we use to a…
Video by: Michael
Viewers learn about how to reduce the potential repetitiveness of coding in main by developing methods to perform specific tasks for their program. Additionally, objects are introduced for the purpose of learning how to call methods in Java. Define …
This video teaches viewers about errors in exception handling.
Suggested Courses
Course of the Month11 days, 14 hours left to enroll

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question