CloudSim源代码学习SimEntityjava文档格式.docx

CloudSim源代码学习SimEntityjava文档格式.docx

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*

*Copyright（c）2009-2010,TheUniversityofMelbourne,Australia

*/

package;

import;

/**

*Thisclassrepresentsasimulationentity.Anentityhandleseventsandcan

*sendeventstootherentities.Whenthisclassisextended,thereareafew

*methodsthatneedtobeimplemented:

*<

ul>

li>

{@link#startEntity（）}isinvokedbythe{@linkSimulation}classwhen

*thesimulationisstarted.Thismethodshouldberesponsibleforstartingthe

*entityup.

{@link#processEvent（SimEvent）}isinvokedbythe{@linkSimulation}

*classwheneverthereisaneventinthedeferredqueue,whichneedstobe

*processedbytheentity.

{@link#shutdownEntity（）}isinvokedbythe{@linkSimulation}beforethe

*simulationfinishes.Ifyouwanttosavedatainlogfilesthisisthemethod

*inwhichthecorrespondingcodewouldbeplaced.

/ul>

*@authorMarcosDiasdeAssuncao

*@sinceCloudSimToolkit1.0

publicabstractclassSimEntityimplementsCloneable{

/**Thename.*/

privateStringname;

/**Theid.*/

privateintid;

/**Thebufferforselectedincomingevents.*/

privateSimEventevbuf;

/**Theentity'

scurrentstate.*/

privateintstate;

/**

*Createsanewentity.

*@paramnamethenametobeassociatedwiththisentity

publicSimEntity（Stringname）{

if（name.indexOf（"

"

）!

=-1）{

thrownewIllegalArgumentException（

"

Entitynamescan'

tcontainspaces."

）;

}

this.name=name;

id=-1;

state=RUNNABLE;

CloudSim.addEntity（this）;

}

*Getthenameofthisentity.

*@returnTheentity'

sname

publicStringgetName（）{

returnname;

*Gettheuniqueidnumberassignedtothisentity.

*@returnTheidnumber

publicintgetId（）{

returnid;

//Theschedulefunctions

*Sendaneventtoanotherentitybyidnumber,withdata.Notethatthe

*tag<

code>

9999<

/code>

isreserved.

*@paramdestTheuniqueidnumberofthedestinationentity

*@paramdelayHowlongfromthecurrentsimulationtimetheevent

*shouldbesent

*@paramtagAnuser-definednumberrepresentingthetypeofevent.

*@paramdataThedatatobesentwiththeevent.

publicvoidschedule（intdest,doubledelay,inttag,Objectdata）{

if（!

CloudSim.running（））{

return;

CloudSim.send（id,dest,delay,tag,data）;

*Sendaneventtoanotherentitybyidnumberandwith<

b>

no<

/b>

data.

*Notethatthetag<

publicvoidschedule（intdest,doubledelay,inttag）{

schedule（dest,delay,tag,null）;

*Sendaneventtoanotherentitythroughaportwithagivenname,with

*data.Notethatthetag<

*@paramdestThenameoftheporttosendtheeventthrough

publicvoidschedule（Stringdest,doubledelay,inttag,Objectdata）{

schedule（CloudSim.getEntityId（dest）,delay,tag,data）;

data.Notethatthetag<

*@paramdelayHowlongfromthecurrentsimulationtimetheeventshouldbe

*sent

publicvoidschedule（Stringdest,doubledelay,inttag）{

publicvoidscheduleNow（intdest,inttag,Objectdata）{

schedule（dest,0,tag,data）;

publicvoidscheduleNow（intdest,inttag）{

schedule（dest,0,tag,null）;

*Sendaneventto