I am trying to get Hadoop psuedo cluster detail using api in java -

I am trying to get Hadoop psuedo cluster detail using api in java -

i learning hadoop trying pseudo hadoop cluster details name node, info node live node, dead node etc java code using hadoop api i.e. ever can see using http port i.e 50070. have tried using fsnamesystem class not able phone call constructor private different bundle m thinking if how can give dependency injection namenode , configuration class argument constructor can utilize shown below :

fsnamesystem f= fsnamesystem.getfsnamesystem(); f.getlivenode() , remaining methods

can 1 suggest how can implement this

thanks in advance

hadoop