JSAGA

Dear Developers,

I would like to list files (and get some details) in a directory accessible via sftp, and using jSAGA.
Probably, I am doing something wrong, but when I switch from http to sftp, the behaviour of
jSAGA becomes non-deterministic: sometimes I get correct results, in many cases, I get NoSuccessException,
and sometimes the code stucks at invoking blocking calls (such as close(), getSize(), getMTime()) without
terminating ever.

Can you please tell me what I am doing wrong? I used the code below that works for http but not for sftp.

Thanks,
Akos Hajnal

import java.text.SimpleDateFormat;
import java.util.Date;
import org.ogf.saga.context.Context;
import org.ogf.saga.context.ContextFactory;
import org.ogf.saga.file.File;
import org.ogf.saga.file.FileFactory;
import org.ogf.saga.namespace.NSDirectory;
import org.ogf.saga.namespace.NSFactory;
import org.ogf.saga.permissions.Permission;
import org.ogf.saga.session.Session;
import org.ogf.saga.session.SessionFactory;
import org.ogf.saga.url.URL;
import org.ogf.saga.url.URLFactory;

public class Ssh {

    public static void main(String[] args) throws Exception {

        // http works fine
        //URL url = URLFactory.createURL("http://grid.in2p3.fr/maven2/fr/in2p3/jsaga/jsaga-engine"); 
        //Session session = null; 

        URL url = URLFactory.createURL("sftp://192.168.154.102/a");
        Session session = SessionFactory.createSession(false);
        Context ctx = ContextFactory.createContext("UserPass");
        ctx.setAttribute(Context.USERID, "root");
        ctx.setAttribute(Context.USERPASS, "****");
        session.addContext(ctx);

        NSDirectory dir = NSFactory.createNSDirectory(session, url);

        for (URL dirEntry: dir.list()) {
             if (dir.isEntry(dirEntry)) {
                 String fileName = dirEntry.getPath();

                 File f = FileFactory.createFile(session, URLFactory.createURL(dir.getURL().toString() + fileName));
                 long size = f.getSize();
                 long date = f.getMTime();
                 boolean readPermisssion = f.permissionsCheck("*", Permission.READ.getValue());
                 boolean writePermission = f.permissionsCheck("*", Permission.WRITE.getValue());
                 boolean executePermission = f.permissionsCheck("*", Permission.EXEC.getValue());
                 f.close();

                 System.out.println(
                         fileName + " " +
                         (readPermisssion ? "r" : "-") + (writePermission ? "w" : "-") + (executePermission ? "x" : "-") + " " + 
                         (date != 0l ? new SimpleDateFormat("dd-MMM-yyyy HH:mm").format(new Date(date)) : "?") + " " + 
                         (size != 0l ? "" + size + "B": "?"));
             }
        }
        dir.close();
    }
}