Design and implement a basic File Transfer Protocol (FTP) graphical user interface tool. When executed, the tool will display a UI where the user can upload (put) and download (get) files from a remote server. The ftp4j library will be used to implement t

Project 2
CMSC 335

Requirements

Design and implement a basic File Transfer Protocol (FTP) graphical user interface
tool. When executed, the tool will display a UI where the user can upload (put) and
download (get) files from a remote server. The ftp4j library will be used to
implement the actual protocol and file transfers. A remote FTP site and credentials
will be provided for the project.

This project reuses classes implemented in Project 1. You should be able to use the
classes with little to no modification. The classes (and related parent classes) to be
reused are:
PutJob.java: A subclass of TransferJob that performs an FTP upload of a file to
the remote host.
GetJob.java: A subclass of TransferJob that performs and FTP download of a
file from the remote host.
SingleThreadedTransferEngine.java: An implementation of TransferEngine
that performs all operations in a single thread (i.e. the same thread as the
caller). Therefore operations like addJob() will block while the job is added
and executed.

The UI must contain the following features:
A host text field: For entering the remote host name.
A port text field: For entering the remote port number.
A username text field: For entering the user name for remote authentication.
A password password input field: For entering the password for remote
authentication.
A connect button: Creates the FTPBuilder using the host, port, username, and
password. Starts the transfer engine. Creates an FTPClient to be used by the
main UI thread.
A put button: Transfers the selected local file to the remote site. If not file is
selected in the local file list, this button does nothing.
A get button: Transfers the selected remote file to the local site. If not file is
selected in the remote file list, this button does nothing.
A console text area: A non-editable text area for displaying user feedback and
job status information.
A refresh button: Refreshes the local file list, remote file list, and appends the
status of all jobs to the console text area.
A local file list: Displays the files in the current local directory (i.e. the
directory the application was launched in).



A remote file list: Displays the files in the remote directory (i.e. the default
home directory on the remote FTP server).


Refer to the example screenshot for a suggested layout. You may use the NetBeans
UI Builder for this project.

The general functionality is the same as with project 1. A user can upload and
download files but rather than with the console prompt, the user can use a simple
UI. You do not need to implement directory browsing so the local file list will always
be for the current directory and the remote file list will always be for the default
home directory of the user (refer to FTPClient.currentDirectory()).

Future projects in this class will reuse the core parts of this project (e.g. the transfer
engine, jobs, and UI) so implement them correctly, cleanly, and with proper
documentation in order to save time later. Ask questions in the online classroom on
via email if you are struggling with any part of the assignment.

Refer to Project 1 for information on the ftp4j library and the FTP site information
for testing will be provided to you.

All code must be properly documented with JavaDoc style class, method, and field
comments and inline code comments. All code must be properly formatted and
indented for readability. Java style guidelines and conventions must be used for
class, method, field, and variable naming.

Deliverables
Demonstrate that your code compiles and runs without issue using the command
line JDK tools (i.e. javac and java). You can use screen captures to demonstrate this
functionality in a Word document. Be sure to include enough cases to verify
functionality and to represent adequate testing of the application.

The Word document must also include a Lessons Learned section in which you
provide lessons learned while developing the application including (but not limited
to):
What was the most challenging part?
What are the limitations of the current implementation?
What improvements or new features could be added?
How might you add features like remote file deletion and directory listing?
How could the assignment be improved?
What are the key lessons learned that you would take into future
assignments?

Your completed assignment should consist of all the .java implementation files and
the .doc(x) documentation file. Do not include the ftp4j .jar library file or any

.class compile files. Do not copy and paste your Java code into the Word document.
Submit these files to your project 2 assignment area no later than the due date listed
in the syllabus.

Grading

Refer to the Assignment Rubric in the online classroom for a breakdown of the
grading areas and point distributions.

Example Program Execution

The following is an example execution of the application. Note that the remote host
will be different and the file names and directories may be different.