Technische Universität Darmstadt
Telecooperation
Praktikum Internet –
The Next Generation
FG Telekooperation
Dirk Bradler, Julian Schröder-Bernhardi
Copyrighted material; for TUD student use only
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
Next Generation Internet
• Huge and growing demand for Internet services
– Broadband access at home, wireless access, multimedia, ...
• Internet will become ubiquitous and part of everyday
life for “everyone”
• New technologies:
– Content distribution
– Peer-to-peer
– Streaming
– Mobile Internet
– Device collaboration
– ...
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
What Is This Praktikum About?
• New technologies – What?
– Protocols
– Communication paradigms
– Integration
• Practical issues – How?
– Implementation work
– Small prototypes
• Building blocks for future
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
Organization
• 3 topics, each lecture + assignment
• Lecture covers theory, assignment implements it
• Assignments have milestones
– For measuring progress (for you and us )
– ~3 milestones / assignment
– First assignment 2 week long, assignment 2 is 4 weeks long, and
assignment 3 is ~1.5 months long
• Teams of 2-3 students, one grade for whole team
• Overall grade as average of assignment grades
– Weights: 1/4, 1/4, 1/2
• Teams discovered cheating will get a grade of 5,0 for the whole
assignment
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
Assignments
1. Introduction to network programming in Java and HTTP
and Web
• Short introduction to Java network programming
• HTTP and Web programming
2. UPnP
• Seamless connectivity
• Corporate environments
• Internet-based communication standards
3. Distributed File System
• Caching
• Replacement policies
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
What You Need to Do (1)
In each assignment, return the following:
1. Compiled JAR-File
• Executable!!!
• Including Java source code
•
The code should follow the coding guidelines given on the next
pages
•
Code not following the guidelines may be graded inferior
compared with functionally equivalent code that does follow them
2. Short written report
• What you have done, what is missing, how you implemented it
• Describe design choices, why you did them, etc.
• UML diagram is ok, if you know UML
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
What You Need to Do (2)
3. Test cases used
• Test cases may be defined informally in the written report or
formally with JUnit tests
4. The names and Martikel numbers of all people in the
group must be present in the written report and in the
e-mail
• Return as a zip-file by email to
bradler@tk.informatik.tu-darmstadt.de
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
Coding Guidelines (1)
•
Note: The guidelines are not designed to be in your way – you
might already program according to them just because it is the
Right Thing to do anyway
•
The code should compile (with JDK up to 1.6)
•
if you are using 1.5 extensions (e.g., enums, generics), there is no
need to mention that explicitly
•
Your code should be readable – indent blocks, use capitalization
conventions
•
The program’s design should follow OO best practices
•
Examples: information hiding, typing with interfaces, modularization,
avoiding static for everything but main() and constants, …
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
Coding Guidelines (2)
•
The code should contain comments
•
•
Minimum: JavaDoc for each public method and each public class with
one sentence
Use self explaining names for variables, methods and classes
•
self explaining != long
for(int i = 0; i < size; i++) is self explaining
public Node _n is not self explaining
•
External libraries are permitted only for things that are not part of
the assignment
•
Example: libraries for logging or UI generation are okay, libraries for
socket handling are not
•
If you are using external libraries, you must turn them in with your
assignment
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
Timeline
Date
Topic
Time
Place
15.10.
Introduction
15:20-17:00
S2/02/C120
22.10.
Lecture 1, Assignment 1
15:20-17:00
S2/02/C120
5.11.
Lecture 2, Assignment 2
15:20-17:00
S2/02/C120
26.11.
Q & A Session (Assignment 2)
15:20-17:00
S2/02/C120
3.12.
Lecture 3, Assignment 3
15:20-17:00
S2/02/C120
17.12.
Assignment 3, Q & A Session
15:20-17:00
S2/02/C120
14.1.
Assignment 3, Q & A Session
15:20-17:00
S2/02/C120
21.1.
Return Assignment 3
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
Practical Matters
• Discussion forums:
Fachschafts-Forum zur Lehrveranstaltung
(“Internet - The Next Generation“)
http://www.fachschaft.informatik.tudarmstadt.de/forum/
• All questions and announcements in Forum!
– For FAQ and interesting questions in the forum, we will
prepare slides for the Q&A session
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
Questions?
:
Prof. Dr. M. Mühlhäuser
Telekooperation
©
Dann …
Gruppeneinteilung
: