package?peersim.pastry;

import?peersim.core.CommonState;
import?peersim.config.Configuration;
import?peersim.core.Network;
import?java.math.BigInteger;

//______________________________________________________________________________________________
/**
?*?This?control?initializes?the?whole?network?（that?was?already?created?by?peersim）?by?assigning?a
?*?unique?NodeId?randomly?generated?to?every?node?（it?does?nothing?else）.
?*?
title:?MSPASTRY

?*
?*?
Description:?MsPastry?implementation?for?PeerSim

?*
?*?
Copyright:?Copyright?（c）?2007

?*
?*?
Company:?The?Pastry?Group

?*
?*?@author?Elisa?Bisoffi?Manuel?Cortella
?*?@version?1.0
?*/
public?class?CustomDistribution?implements?peersim.core.Control?{

????//______________________________________________________________________________________________
????private?static?final?String?PAR_PROT?=?“protocol“;

????private?int?protocolID;
????private?UniformRandomGenerator?urg;


????//______________________________________________________________________________________________
????public?CustomDistribution（String?prefix）?{

????????protocolID?=?Configuration.getPid（prefix?+?“.“?+?PAR_PROT）;
????????urg?=?new?UniformRandomGenerator（MSPastryCommonConfig.BITS?CommonState.r）;
????}


????//______________________________________________________________________________________________
????/**
?????*?Scan?over?the?nodes?in?the?network?and?assign?a?randomly?generated?NodeId?in?the?space
?????*?0..2^BITS?where?BITS?is?a?parameter?from?the?pastry?protocol?（usually?128）
?????*?@return?boolean?always?false
?????*/
????public?boolean?execute（）?{
???????BigInteger?tmp;
???????for?（int?i?=?0;?i????????????tmp?=?urg.generate（）;
???????????（（MSPastryProtocol）（Network.get（i）.getProtocol（protocolID）））.setNodeId（tmp）;
???????}

????????return?false;
????}

????//______________________________________________________________________________________________
}?//?End?of?class