Free Media Platform

A simple Java-based simulation of a streaming media platform, created for a university course on programming methodologies. This project demonstrates the application of several key design patterns.

Design Patterns Used

This project utilizes the following design patterns:

• Builder: Used for the step-by-step construction of complex objects. This pattern is implemented to create Content objects like Movie and TVSeries. The ContentBuilder abstract class defines the steps for building content, while the MovieBuilder and TVSeriesBuilder classes provide the concrete implementations for each content type.
• Observer: This pattern establishes a one-to-many dependency between objects. When the state of an object changes, all its dependents are automatically notified and updated. In this project, the StreamingPlatform acts as the subject, and PlatformUser and PlatformEventLogger are observers. When content is added, removed, or updated on the platform, the observers are notified of the change.
• Visitor: This pattern separates an algorithm from the object structure on which it operates. It allows you to add new operations to these structures without modifying them. The ContentVisitor interface is implemented by DisplayContentVisitor and PlaybackContentVisitor to perform operations on Content objects.
  • DisplayContentVisitor is used to generate a string representation of the content.
  • PlaybackContentVisitor is used to retrieve the episodes of a piece of content for playback.
• Adapter: The PlatformEventVisitorAdapter class acts as an adapter for the PlatformEventVisitor interface. It provides a default, empty implementation of the interface's methods, allowing other classes to extend it and override only the methods they are interested in.

Features

• Add, remove, and update media content (movies and TV series) on the platform.
• Retrieve a list of content and search for specific titles.
• "Watch" content, which returns a list of episodes.
• Users receive email notifications when new content is added or existing content is updated.
• Events on the platform (such as adding, removing, and updating content) are logged.

How to Run

You can run this project in a few ways. Please choose the option that best suits your setup. You can find all the necessary files on the GitHub Releases page.

1. For IntelliJ IDEA users:
   • Download the source code (zip | tar.gz)
   • Unzip the file.
   • In IntelliJ IDEA, select "File" > "Open" and choose the extracted folder.
2. For Eclipse users (pre-packaged project):
   • Download the pre-zipped project file (progetto.mp.yang.lorenzo.zip).
   • In Eclipse, select "File" > "Import...".
   • Choose "Existing Projects into Workspace" from the "General" category.
   • Select the "Select archive file" option and browse to the downloaded zip file.
   • Click "Finish".
3. For Eclipse users (Maven project):
   • Download the source code (zip | tar.gz)
   • Unzip the file.
   • In Eclipse, select "File" > "Import...".
   • Choose "Existing Maven Projects" from the "Maven" category.
   • Browse to the root directory of the extracted source code and click "Finish".