nfsconnection.java

一个JAVA做的FTP软件,带源码的,可以很好的进行二次开发,,并带有详细说明文件的

            {
                accessible = FtpConnection.R;
            }
            else
            {
                accessible = FtpConnection.DENIED;
            }

            perms[i] = accessible;

            //System.out.println(pwd+files[i] +" : " +accessible + " : " + size[i]);
        }

        return files;
    }

    public String[] sortSize(String file)
    {
        return size;
    }

    public int[] getPermissions(String file)
    {
        return perms;
    }

    public int handleUpload(String f)
    {
        upload(f);

        return 0;
    }

    public int handleDownload(String f)
    {
        download(f);

        return 0;
    }

    public int upload(String f)
    {
        String file = toNFS(f);

        if(file.endsWith("/"))
        {
            String out = StringUtils.getDir(file);
            uploadDir(file, getLocalPath() + out);
            fireActionFinished(this);
        }
        else
        {
            String outfile = StringUtils.getFile(file);

            //System.out.println("transfer: " + file + ", " + getLocalPath() + outfile);
            work(getLocalPath() + outfile, file);
            fireActionFinished(this);
        }

        return 0;
    }

    public int download(String f)
    {
        String file = toNFS(f);

        if(file.endsWith("/"))
        {
            String out = StringUtils.getDir(file);
            downloadDir(file, getLocalPath() + out);
            fireActionFinished(this);
        }
        else
        {
            String outfile = StringUtils.getFile(file);

            //System.out.println("transfer: " + file + ", " + getLocalPath() + outfile);
            work(file, getLocalPath() + outfile);
            fireActionFinished(this);
        }

        return 0;
    }

    private void downloadDir(String dir, String out)
    {
        try
        {
            //System.out.println("downloadDir: " + dir + "," + out);
            fileCount = 0;
            shortProgress = true;
            baseFile = StringUtils.getDir(dir);

            XFile f2 = new XFile(dir);
            String[] tmp = f2.list();

            if(tmp == null)
            {
                return;
            }

            File fx = new File(out);
            fx.mkdir();

            for(int i = 0; i < tmp.length; i++)
            {
                tmp[i] = tmp[i].replace('\\', '/');

                //System.out.println("1: " + dir+tmp[i] + ", " + out +tmp[i]);
                XFile f3 = new XFile(dir + tmp[i]);

                if(f3.isDirectory())
                {
                    if(!tmp[i].endsWith("/"))
                    {
                        tmp[i] = tmp[i] + "/";
                    }

                    downloadDir(dir + tmp[i], out + tmp[i]);
                }
                else
                {
                    fileCount++;
                    fireProgressUpdate(baseFile,
                                       DataConnection.GETDIR + ":" + fileCount,
                                       -1);
                    work(dir + tmp[i], out + tmp[i]);
                }
            }

            fireProgressUpdate(baseFile,
                               DataConnection.DFINISHED + ":" + fileCount, -1);
        }
        catch(Exception ex)
        {
            ex.printStackTrace();

            //System.out.println(dir + ", " + out);
            Log.debug("Transfer error: " + ex);
            fireProgressUpdate(baseFile,
                               DataConnection.FAILED + ":" + fileCount, -1);
        }

        shortProgress = false;
    }

    private void uploadDir(String dir, String out)
    {
        try
        {
            //System.out.println("uploadDir: " + dir + "," + out);
            isDirUpload = true;
            fileCount = 0;
            shortProgress = true;
            baseFile = StringUtils.getDir(dir);

            File f2 = new File(out);
            String[] tmp = f2.list();

            if(tmp == null)
            {
                return;
            }

            XFile fx = new XFile(dir);
            fx.mkdir();

            for(int i = 0; i < tmp.length; i++)
            {
                tmp[i] = tmp[i].replace('\\', '/');

                //System.out.println("1: " + dir+tmp[i] + ", " + out +tmp[i]);
                File f3 = new File(out + tmp[i]);

                if(f3.isDirectory())
                {
                    if(!tmp[i].endsWith("/"))
                    {
                        tmp[i] = tmp[i] + "/";
                    }

                    uploadDir(dir + tmp[i], out + tmp[i]);
                }
                else
                {
                    fileCount++;
                    fireProgressUpdate(baseFile,
                                       DataConnection.PUTDIR + ":" + fileCount,
                                       -1);
                    work(out + tmp[i], dir + tmp[i]);
                }
            }

            fireProgressUpdate(baseFile,
                               DataConnection.DFINISHED + ":" + fileCount, -1);
        }
        catch(Exception ex)
        {
            ex.printStackTrace();

            //System.out.println(dir + ", " + out);
            Log.debug("Transfer error: " + ex);
            fireProgressUpdate(baseFile,
                               DataConnection.FAILED + ":" + fileCount, -1);
        }

        isDirUpload = false;
        shortProgress = true;
    }

    private void work(String file, String outfile)
    {
        try
        {
            BufferedOutputStream out = null;
            boolean outflag = false;

            if(outfile.startsWith("nfs://"))
            {
                outflag = true;
                out = new BufferedOutputStream(new XFileOutputStream(outfile));
            }
            else
            {
                out = new BufferedOutputStream(new FileOutputStream(outfile));
            }

            //System.out.println("out: " + outfile + ", in: " + file);
            BufferedInputStream in = null;

            if(file.startsWith("nfs://"))
            {
                in = new BufferedInputStream(new XFileInputStream(file));
            }
            else
            {
                in = new BufferedInputStream(new FileInputStream(file));
            }

            byte[] buf = new byte[buffer];
            int len = 0;
            int reallen = 0;

            //System.out.println(file+":"+getLocalPath()+outfile);
            while(true)
            {
                len = in.read(buf);

                //System.out.print(".");
                if(len == StreamTokenizer.TT_EOF)
                {
                    break;
                }

                out.write(buf, 0, len);
                reallen += len;

                //System.out.println(file + ":" + StringUtils.getFile(file));
                if(outflag)
                {
                    fireProgressUpdate(StringUtils.getFile(outfile),
                                       DataConnection.PUT, reallen);
                }
                else
                {
                    fireProgressUpdate(StringUtils.getFile(file),
                                       DataConnection.GET, reallen);
                }
            }

            out.flush();
            out.close();
            in.close();
            fireProgressUpdate(file, DataConnection.FINISHED, -1);
        }
        catch(IOException ex)
        {
            Log.debug("Error with file IO (" + ex + ")!");
            fireProgressUpdate(file, DataConnection.FAILED, -1);
        }
    }

    private void update(String file, String type, int bytes)
    {
        if(listeners == null)
        {
            return;
        }
        else
        {
            for(int i = 0; i < listeners.size(); i++)
            {
                ConnectionListener listener = (ConnectionListener) listeners.elementAt(i);
                listener.updateProgress(file, type, bytes);
            }
        }
    }

    public void addConnectionListener(ConnectionListener l)
    {
        listeners.add(l);
    }

    public void setConnectionListeners(Vector l)
    {
        listeners = l;
    }

    /** remote directory has changed */
    public void fireDirectoryUpdate()
    {
        if(listeners == null)
        {
            return;
        }
        else
        {
            for(int i = 0; i < listeners.size(); i++)
            {
                ((ConnectionListener) listeners.elementAt(i)).updateRemoteDirectory(this);
            }
        }
    }

    /** progress update */
    public void fireProgressUpdate(String file, String type, int bytes)
    {
        //System.out.println(listener);
        if(listeners == null)
        {
            return;
        }
        else
        {
            for(int i = 0; i < listeners.size(); i++)
            {
                ConnectionListener listener = (ConnectionListener) listeners.elementAt(i);

                if(shortProgress && Settings.shortProgress)
                {
                    if(type.startsWith(DataConnection.DFINISHED))
                    {
                        listener.updateProgress(baseFile,
                                                DataConnection.DFINISHED + ":" +
                                                fileCount, bytes);
                    }
                    else if(isDirUpload)
                    {
                        listener.updateProgress(baseFile,
                                                DataConnection.PUTDIR + ":" +
                                                fileCount, bytes);
                    }
                    else
                    {
                        listener.updateProgress(baseFile,
                                                DataConnection.GETDIR + ":" +
                                                fileCount, bytes);
                    }
                }
                else
                {
                    listener.updateProgress(file, type, bytes);
                }
            }
        }
    }

    public void fireActionFinished(NfsConnection con)
    {
        if(listeners == null)
        {
            return;
        }
        else
        {
            for(int i = 0; i < listeners.size(); i++)
            {
                ((ConnectionListener) listeners.elementAt(i)).actionFinished(con);
            }
        }
    }

    public int upload(String file, InputStream i)
    {
        try
        {
            file = toNFS(file);

            BufferedOutputStream out = new BufferedOutputStream(new XFileOutputStream(file));
            BufferedInputStream in = new BufferedInputStream(i);

            byte[] buf = new byte[buffer];
            int len = 0;
            int reallen = 0;

            while(true)
            {
                len = in.read(buf);

                if(len == StreamTokenizer.TT_EOF)
                {
                    break;
                }

                out.write(buf, 0, len);
                reallen += len;

                fireProgressUpdate(StringUtils.getFile(file),
                                   DataConnection.PUT, reallen);
            }

            out.flush();
            out.close();
            in.close();
            fireProgressUpdate(file, DataConnection.FINISHED, -1);
        }
        catch(IOException ex)
        {
            Log.debug("Error with file IO (" + ex + ")!");
            fireProgressUpdate(file, DataConnection.FAILED, -1);

            return -1;
        }

        return 0;
    }

    public InputStream getDownloadInputStream(String file)
    {
        file = toNFS(file);
        Log.debug(file);

        try
        {
            return new BufferedInputStream(new XFileInputStream(file));
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
            Log.debug(ex.toString() +
                      " @NfsConnection::getDownloadInputStream");

            return null;
        }
    }
}