WebsiteMonitor

Website availability & performance monitor(great app must try).

JUnit Test added

Use "Run As JUnit Test" to test Alerting logic

Improvement so far

• Used user input website and interval instead of inside-code and pre-defined data
• Defined special generic type to store and print data and corresponding timeline info
• Most methods and classes are generalizable and their logic are universal

Potential improvement

MainRunner:

• Add "If no input, try again" logic in 'init()' method
• For now, 'isValidData()' only verifry validness of interval, will consider url as well (maybe with UrlValidtor), especially some of which contains parameters
• Will distinguish whether the check interval is the interval "after response and before next request" or "between adjacent request"

WebRequestData:

• Add separate lists to store data for shorter interval instead of tracing data from whole lists, reduce code complexity (although won't reduce neither time nor space)
• Should considering split this class into different class to reduce complexity

Printer:

• Use more pleaseant format of output, e.g. different color etc.

Test:

• Consider more boundary case regarding multiple thread THANK YOU