VM. Java

/** Title: cloudsim toolkit * Description: cloudsim (cloud simulation) Toolkit for modeling and simulation of clouds * Licence: GPL-http://www.gnu.org/copyleft/gpl.html ** copyright (c) 2009-2010, the University of Melbourne, Australia */package Org. cloudid. cloudsim; import Java. util. arraylist; import Java. util. list;/*** VM class indicates a virtual machine that runs in the host and shares the host with other virtual machines. Each VM * has an owner, which can submit cloudlet, the VM processes the submitted clo The main udlet * method is to update each cloudlet * VM represents a VM: It runs inside a host, sharing hostlist * with other VMS. it processes cloudlets. this processing happens according * to a policy, defined by the cloudletscheduler. each VM has a owner, which can * submit cloudlets to the VM to be executed ** @ authorrodrigo n. calheiros * @ authoranton beloglazov * @ sincecloudsim toolkit 1.0 */public class VM {/** * Parameter: * ID, user ID, hard disk size (size), processing capability, number of PES, memory, bandwidth, vmm, scheduling policy * Host, whether to migrate, allocated size, processing capability, internal and external memory, bandwidth, whether it is recently created * // ** the ID. */private int ID;/** the user ID. */private int userid; private string uid;/** the size. */private long size;/** the mips. processing capacity */private double MIPS;/** the PES number. */private int pesnumber;/** the ram. */private int Ram;/** the BW. */private long bw;/** the vmm. */private string vmm ;/** The cloudlet scheduler. cloudler scheduling policy */private cloudletscheduler;/** the host. */private host; // What if a VM requires more than one host? There should be a list./** in migration flag. */private Boolean inmigration;/** the current allocated size. */private long currentallocatedsize;/** the current allocated Ram. */private int currentallocatedram;/** the current allocated BW. */private long currentallocatedb W;/** the current allocated MIPS. */private list <double> currentallocatedmips;/** the recently created. */private Boolean recentlycreated;/*** creates a new vmcharacteristics object. ** @ Param ID unique ID of the VM * @ Param userid of the VM's owner * @ Param size amount of storage * @ Param RAM amount of Ram * @ Param BW amount of bandwidth * @ Param pesnumber amount of CPUs * @ Param vmm virtual Machine monitor * @ Param cloudletscheduler policy for cloudlets * @ Param priority the priority * @ Param MIPs The MIPs ** @ pre ID> = 0 * @ pre userid> = 0 * @ pre size> 0 * @ pre Ram> 0 * @ pre BW> 0 * @ pre CPUs> 0 * @ pre priority> = 0 * @ pre cloudletschedity! = NULL * @ post $ none */Public VM (int id, int userid, double MIPS, int pesnumber, int Ram, long BW, long size, string vmm, cloudletscheduler) {setid (ID); setuserid (userid); setuid (getuid (userid, ID); setmips (MIPs); setpesnumber (pesnumber); setram (RAM ); setbw (BW); setsize (size); setvmm (vmm); setcloudletscheduler (cloudletschedation); setinmigration (false); setrecentlycreated (true); setcurrentall Ocatedbw (0); setcurrentallocatedmips (null); setcurrentallocatedram (0); setcurrentallocatedsize (0);}/*** updates the processing of cloudlets running on this VM. ** @ Param currenttime current simulation time * @ Param mipsshare array with MIPS share of each PE available to the scheduler ** @ return time predicted completion time of the earliest finishing cloudlet, or 0 * if there is no next events ** @ Pre currenttime> = 0 * @ post $ none */Public double updatevmprocessing (double currenttime, list <double> mipsshare) {If (mipsshare! = NULL) {// update return getcloudletscheduler () for cloudlet in scheduler (). updatevmprocessing (currenttime, mipsshare);} return 0.0;}/*** the newly created VM directly returns currentrequestedmips; otherwise, * gets the current requested MIPs is returned. ** @ return the current requested MIPS */public list <double> getcurrentrequestedmips () {list <double> currentrequestedmips = getcloudletschedmips (). getcurrentrequestedmips (); If (isrecentlycreated () {boo Lean mipsisnull = true; For (double MIPS: currentrequestedmips) {If (MIPs> 0.0) {mipsisnull = false; setrecentlycreated (false); break ;}} // If (mipsisnull & isrecentlycreated () {If (mipsisnull) {currentrequestedmips = new arraylist <double> (); For (INT I = 0; I <getpesnumber (); I ++) {currentrequestedmips. add (getmips () ;}}return currentrequestedmips;}/*** total processing capacity * gets the current requested total MI PS. ** @ return the current requested total MIPS */Public double getcurrentrequestedtotalmips () {double totalrequestedmips = 0; For (double MIPS: getcurrentrequestedmips () {totalrequestedmips + = MIPS ;} return totalrequestedmips;}/*** gets the current requested BW. ** @ return the current requested BW */public long getcurrentrequestedbw () {return getbw ();}/*** gets the current requested Ram. ** @ Return the current requested Ram */Public int getcurrentrequestedram () {return getram ();}/*** total CPU usage at the moment * Get utilization created by all clouddlets running on this VM. ** @ Param time the time ** @ return total utilization */Public double gettotalutilizationofcpu (double time) {return getcloudletscheduler (). gettotalutilizationofcpu (time);}/*** get utilization created by all cloudlets running on This VM in MIPS. ** @ Param time the time ** @ return total utilization */Public double gettotalutilizationofcpumips (double time) {return gettotalutilizationofcpu (time) * getmips ();} public void setuid (string UID) {This. uid = uid;}/*** get unique string identificator of the VM. ** @ return string uid */Public String getuid () {return uid;}/*** generate unique string identificator of the VM. **@ Param userid the user ID * @ Param vmid the vm id ** @ return string uid */public static string getuid (INT userid, int vmid) {return userid + "-" + vmid;}/*** gets the ID. ** @ return the ID */Public int GETID () {return ID;}/*** sets the ID. ** @ Param ID the new ID */protected void setid (int id) {This. id = ID;}/*** sets the user ID. ** @ Param userid the new user ID */protected void setuserid (I NT userid) {This. userid = userid;}/*** gets the ID of the owner of the VM. ** @ return VM's owner ID ** @ pre $ none * @ post $ none */Public int getuserid () {return userid;}/*** gets the mips. ** @ return the MIPs */Public double getmips () {return MIPS;}/*** sets the mips. ** @ Param MIPs The New MIPS */protected void setmips (double MIPS) {This. MIPs = MIPS;}/*** gets the PES number. ** @ return The PES Number */Public int getpesnumber () {return pesnumber;}/*** sets the PES number. ** @ Param pesnumber the new PES Number */protected void setpesnumber (INT pesnumber) {This. pesnumber = pesnumber;}/*** gets the amount of RAM. ** @ return amount of Ram ** @ pre $ none * @ post $ none */Public int getram () {return Ram;}/*** sets the amount of RAM. ** @ Param Ram new amount of Ram ** @ pre Ram> 0 * @ post $ none */Public void setram (int ram) {This. ram = Ram;}/*** gets the amount of bandwidth. ** @ return amount of bandwidth ** @ pre $ none * @ post $ none */public long getbw () {return bw;}/*** sets the amount of bandwidth. ** @ Param BW new amount of bandwidth ** @ pre BW> 0 * @ post $ none */Public void setbw (long BW) {This. BW = bw;}/*** gets the amount of storage. ** @ return amount of S Torage ** @ pre $ none * @ post $ none */public long getsize () {return size;}/*** sets the amount of storage. ** @ Param size new amount of storage ** @ pre size> 0 * @ post $ none */Public void setsize (Long SIZE) {This. size = size;}/*** gets the vmm. ** @ return vmm ** @ pre $ none * @ post $ none */Public String getvmm () {return vmm;}/*** sets the vmm. ** @ Param vmm the new vmm */protected void setv Mm (string vmm) {This. vmm = vmm;}/*** sets the host that runs this VM. ** @ Param host running the VM ** @ pre host! = $ Null * @ post $ none */Public void sethost (host) {This. host = host;}/*** gets the host. ** @ return the host */public host gethost () {return host;}/*** gets the VM scheduler. * schedsets mainly serves some cloudlet queues * @ return the VM scheduler */Public cloudletscheduler getcloudletscheduler () {return cloudletschedsets;}/*** sets the VM schedsets. ** @ Param cloudletschedthe the new VM scheduler */protected void setcloudletscheduler (cloudletscheduler) {This. cloudletscheduler = cloudletschedation;}/*** checks if is in migration. ** @ return true, if is in migration */Public Boolean isinmigration () {return inmigration;}/*** sets the in migration. ** @ Param inmigration the new in migration */Public void setinmigration (Boolean inmigration) {This. inmigration = inmigration;}/*** gets the current allocated size. ** @ return the current allocated size */public long getcurrentallocatedsize () {return currentallocatedsize;}/*** sets the current allocated size. ** @ Param currentallocatedsize the new current allocated size */protected void setcurrentallocatedsize (long currentallocatedsize) {This. currentallocatedsize = currentallocatedsize;}/*** gets the current allocated Ram. ** @ return the current allocated Ram */Public int getcurrentallocatedram () {return currentallocatedram;}/*** sets the current allocated Ram. ** @ Param currentallocatedram the new current allocated Ram */Public void setcurrentallocatedram (INT currentallocatedram) {This. currentallocatedram = currentallocatedram;}/*** gets the current allocated BW. ** @ return the current allocated BW */public long getcurrentallocatedbw () {return currentallocatedbw;}/*** sets the current allocated BW. ** @ Param currentallocatedbw the new current allocated BW */Public void setcurrentallocatedbw (long currentallocatedbw) {This. currentallocatedbw = currentallocatedbw;}/*** gets the current allocated MIPS. ** @ return the current allocated MIPS * @ todo replace returning the field by a call to getcloudletscheduler (). getcurrentmipsshare () */public list <double> getcurrentallocatedmips () {return currentallocatedmips;}/*** sets the current allocated MIPS. ** @ Param currentallocatedmips the new current allocated MIPS */Public void setcurrentallocatedmips (list <double> currentallocatedmips) {This. currentallocatedmips = currentallocatedmips;}/*** checks if is recently created. ** @ return true, if is recently created */Public Boolean isrecentlycreated () {return recentlycreated;}/*** sets the recently created. ** @ Param recentlycreated the new recently created */Public void setrecentlycreated (Boolean recentlycreated) {This. recentlycreated = recentlycreated ;}}