This was a takehome test in which I spent around 20 hours and got nothing in return from the entity that sent it to me. They lied to me and told me they could meet my pay-rate, after I went through all their hoops they offered me around half of what we had agreed.
To look at the solution, look at PULL-REQUEST
To look at other code challenges, look here: https://github.com/Sleepful/CodingChallenges
Imagine you have any number of servers (1 to 1000+) that generate log files for your distributed app. Each log file can range from 100MB - 512GB in size. They are copied to your machine which contains only 16GB of RAM.
The local directory would look like this:
/temp/server-bc329xbv.log
/temp/server-cuyew12x.logOur goal is to print the individual lines out to your screen, sorted by timestamp.
A log file stuctured as a CSV with the date in ISO 8601 format in the first column and an event in the second column.
Each individual file is already in time order.
As an example, if file /temp/server-bc329xbv.log looks like:
2016-12-20T19:00:45Z, Server A started.
2016-12-20T19:01:25Z, Server A completed job.
2016-12-20T19:02:48Z, Server A terminated.
And file /temp/server-cuyew12x.log looks like:
2016-12-20T19:01:16Z, Server B started.
2016-12-20T19:03:25Z, Server B completed job.
2016-12-20T19:04:50Z, Server B terminated.
Then our output would be:
2016-12-20T19:00:45Z, Server A started.
2016-12-20T19:01:16Z, Server B started.
2016-12-20T19:01:25Z, Server A completed job.
2016-12-20T19:02:48Z, Server A terminated.
2016-12-20T19:03:25Z, Server B completed job.
2016-12-20T19:04:50Z, Server B terminated.
You can run LogSortApplication to generate log files using LogGenerator and then print them with LogPrinter.
Feel free to use or modify LogGenerator to create more and/or longer log files.
The current LogPrinter implementation may work, but is too primitive to meet the above requirements.
This is just a starting point so modify this project any way you want.