Phase2 Downloader

A Java application that downloads files from a list of URLs and records metadata about each URL.

Overview

This program reads URLs from an input file, retrieves information about each URL, and downloads supported files to a specified directory. It also generates an output report containing metadata and download results.

Features

• Reads URLs from an input file
• Retrieves URL metadata
• Downloads text-based files (HTML, TXT)
• Downloads binary files (JPG, JPEG, GIF, PDF, DOCX)
• Saves downloaded files to a specified directory
• Generates a detailed output report
• Handles invalid URLs and download errors

Requirements

• Java 8 or higher

Compilation

javac Phase2Downloader.java

Usage

java Phase2Downloader -i input.txt -o output.txt -d downloads

Example

java Phase2Downloader -i urls.txt -o report.txt -d downloaded_files

Academic Context

This project was completed for CSCI 370 at Queens College as a programming assignment focused on:

• Java networking with URL and URLConnection
• File input/output operations
• Command-line argument processing
• Downloading web resources
• Handling text and binary files
• Exception handling and reporting

Technologies Used

• Java
• URLConnection API
• BufferedReader / BufferedWriter
• FileInputStream / FileOutputStream

Author

Giorgos Stephanis

Queens College – CSCI 370