Tuesday, July 21, 2015

thought-works: Object Oriented design for a cloud based file storage system like SkyDrive



thought-works: Object Oriented design for a cloud based file storage system like SkyDrive
The typical characteristics/requirements of a cloud storage system:
1) They are essentially file hosting services
2) Allow users to register/sign in
3) Allow registered users to buy more storage
4) Allow users to access/upload/delete the files on the cloud
5) Interact with a Distributed file system to store/delete/retrieve the files on the cloud

From the above description of the system, the main components of the system to be built are:
1) SkyDriveController-> Main controller of the system. Allows user interaction with the system
2) DFSController-> Stores the file in the cloud and also allows access/deletion
3)OperationValidator -> performs validations before allowing user interactions with SkyDrive
4)StorageSpaceAllocator -> allocates extra space for users who want to but space

Lets put down the use cases in visual form:




Above use cases describe the user actions and the corresponding system side actions. Now lets move to the Class diagram to see how the different components inter operate:



Read full article from thought-works: Object Oriented design for a cloud based file storage system like SkyDrive

Labels

Review (572) System Design (334) System Design - Review (198) Java (189) Coding (75) Interview-System Design (65) Interview (63) Book Notes (59) Coding - Review (59) to-do (45) Linux (43) Knowledge (39) Interview-Java (35) Knowledge - Review (32) Database (31) Design Patterns (31) Big Data (29) Product Architecture (28) MultiThread (27) Soft Skills (27) Concurrency (26) Cracking Code Interview (26) Miscs (25) Distributed (24) OOD Design (24) Google (23) Career (22) Interview - Review (21) Java - Code (21) Operating System (21) Interview Q&A (20) System Design - Practice (20) Tips (19) Algorithm (17) Company - Facebook (17) Security (17) How to Ace Interview (16) Brain Teaser (14) Linux - Shell (14) Redis (14) Testing (14) Tools (14) Code Quality (13) Search (13) Spark (13) Spring (13) Company - LinkedIn (12) How to (12) Interview-Database (12) Interview-Operating System (12) Solr (12) Architecture Principles (11) Resource (10) Amazon (9) Cache (9) Git (9) Interview - MultiThread (9) Scalability (9) Trouble Shooting (9) Web Dev (9) Architecture Model (8) Better Programmer (8) Cassandra (8) Company - Uber (8) Java67 (8) Math (8) OO Design principles (8) SOLID (8) Design (7) Interview Corner (7) JVM (7) Java Basics (7) Kafka (7) Mac (7) Machine Learning (7) NoSQL (7) C++ (6) Chrome (6) File System (6) Highscalability (6) How to Better (6) Network (6) Restful (6) CareerCup (5) Code Review (5) Hash (5) How to Interview (5) JDK Source Code (5) JavaScript (5) Leetcode (5) Must Known (5) Python (5)

Popular Posts