UNIVERSITY OF WEST ATTICA
SCHOOL OF ENGINEERING
DEPARTMENT OF COMPUTER ENGINEERING AND INFORMATICS
University of West Attica · Department of Computer Engineering and Informatics
Distributed Systems
Vasileios Evangelos Athanasiou
Student ID: 19390005
Supervision
Supervisor: Vasileios Mamalis, Professor
Supervisor: Grammati Pantziou, Professor
Co-supervisor: Doka Katerina, Senior Researcher
Athens, June 2023
This project implements a Java RMI (Remote Method Invocation) application that allows multiple clients to reserve seats for a theater performance at Theater X. The application consists of a server (THServer), a client (THClient), a remote interface (THInterface), and the implementation of this interface (THImpl). The server manages seat reservations and notifies clients of availability.
| Section | Folder / File | Description |
|---|---|---|
| 1 | assign/ |
Assignment material |
| 1.1 | assign/DS-LAB-ASK-2-2022-23.pdf |
Laboratory assignment description (English) |
| 1.2 | assign/ΚΣ-ΕΡΓΑΣΤΗΡΙΟ-ΑΣΚ-2-2022-23.pdf |
Περιγραφή εργαστηριακής άσκησης (Greek) |
| 2 | docs/ |
Theoretical documentation |
| 2.1 | docs/Java-Remote-Method-Invocation.pdf |
Java RMI theory (English) |
| 2.2 | docs/Απομακρυσμένη-Κλήση-Μεθόδου-Java.pdf |
Απομακρυσμένη Κλήση Μεθόδου – Java (Greek) |
| 3 | src/ |
Source code implementation |
| 3.1 | src/THServer.java |
Remote server main program |
| 3.2 | src/THImpl.java |
Remote object implementation |
| 3.3 | src/THInterface.java |
Remote interface definition |
| 3.4 | src/THClient.java |
Client main program |
| 3.5 | src/THClientImpl.java |
Client-side object implementation |
| 3.6 | src/THClientInterface.java |
Client-side interface |
| 3.7 | src/AvailableSeats.java |
Supporting class: seat management |
| 3.8 | src/Reservations.java |
Supporting class: reservation management |
| 4 | README.md |
Project documentation |
| 5 | INSTALL.md |
Usage instructions |
- Concurrent Server: The server can handle multiple client requests simultaneously.
- Available Seats: The theater offers:
- 100 PA type seats (Square - Zone A) at 45 Euros each
- 200 PB type seats (Square - Zone B) at 35 Euros each
- 400 PC type seats (Square - Zone C) at 25 Euros each
- 225 KE type seats (Central Exit) at 30 Euros each
- 75 PTH type seats (Side Theories) at 20 Euros each
- Client Commands:
- List Available Seats: Clients can list all available seats and their prices.
- Reserve Seats: Clients can reserve a specified number of seats.
- List Reservations: Clients can view all reservations made.
- Cancel Reservations: Clients can cancel their reservations.
- Subscription for Notifications: Clients can subscribe for immediate notifications when seats become available again after a cancellation.
- Client Initialization: Clients run the TheaterClient application, specifying commands and parameters.
- Seat Management:
- Clients can list available seats.
- Clients can reserve seats by providing the type, number, and their name.
- Clients can view their reservations.
- Clients can cancel their reservations, with the option to subscribe for notifications if they receive a failure message during booking.
- Server Processing: The TheaterServer manages the reservation process, updates available seats, and communicates with the RMI registry.
- Notifications: When a seat is canceled, all subscribed clients receive immediate notifications.