Problemdescription:
It s required to simulate a limited number of devices connected to a router’s Wi-Fi using Java threading and semaphore. Routers can design to limit the number of open connections. For example, a router may wish to have only N connections at any point in time. As soon as N connections are made, the router will not accept other incoming connection until an existing connection is released. In this project, I explained how semaphores can be used by a router to limit the number of concurrent connections.
Consider the followingrules:
TheWi-Fi numberofconnecteddevices is initially
Ifaclientisloggedin(printamessagethataclienthasloggedin)andifitcanbeserved(meansthat it can reach the internet), thentheclient shouldperform thefollowingactivities:Connect
Perform online activity
Logout
Note:these actionswillberepresentedbyprintedmessages,suchthatthereisarandomwaitingtimebetweentheprintedmessageswhenaclientconnects,dosomeonlineactivities andloggedout.
Ifaclientarrivesandallconnectionsareoccupied,itmustwaituntiloneofthecurrentlyavailableclientsfinisheshis service andleave.
Afteraclientfinisheshisservice,heleaveandoneofthewaitingclients(ifexist)willconnect to the
ProblemDesign\
You program must contain thefollowing classes:
Router Class: that contains a list of connection and methods to occupya connectionandrelease a
SemaphoreClass:asgiven the synchronization
DeviceClass:representdifferentdevices(threads)thatcanbeconnectedtotherouter;eachdevicehasitsownname(i.e.C1)andtype(i.e.mobile,pc,tablet...)anditmayperform threeactivities: connect,perform onlineactivityanddisconnect/logout.
Network Class: this classcontains themain method in which theuseris asked fortwoinputs:N: maxnumberof connections a routercan accept
TC: total numberof devices that wishes to connect).
TC lines that contain: name ofeachdevice,andits
ProgramOutput:
You will print the output logs inafile, whichsimulatesthe executionorder ofthedevicesthreads and the printedmessagesofeachdevice.
Example:
Sample Input:
Sample output:(Note:output depends on theorder oftheexecutions of thethreads)
