XURL

XURL is a utility that can be used to generate and retrieve short URLs when we don’t want to use the original longer URLs.

During the course of this project-

1. Created a short url library with required methods.
2. Implemented register method to take a long URL and return a shorter URL.
3. Implemented a method to lookup the long URL by providing the short URL.
4. Implemented hit count to track number of long URL lookups.
5. Tested this implementation with test cases.

Scope of Work

1. Create a concrete class which implements a short URL interface class provided. It contains all the methods that can be used to create long URL to short URL mappings.
2. Implement a method to take a long URL as input, generate a random 9 character short URL and return it. Also maintain this mapping using a hash map for quick retrieval.
3. Implement a method to take a long URL and a custom short URL as input and register that mapping.
4. Error handling to make sure each long URL maps to only one short URL and vice versa.
5. Implement a method to lookup short URL for a given long URL, from the mapping created.
6. Implement a method to delete the mapping based on a long URL.
7. Implement a counter to keep track of the hit count for each long URL - which tells us how many times a particular long URL has been looked up.
8. Test these methods using test cases.