1 | package simulator.lists; |
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2 | |
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3 | import gridsim.gssim.Constants; |
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4 | |
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5 | import java.util.Calendar; |
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6 | import java.util.Collections; |
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7 | import java.util.Date; |
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8 | import java.util.Iterator; |
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9 | import java.util.LinkedHashSet; |
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10 | import java.util.SortedMap; |
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11 | import java.util.TreeMap; |
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12 | |
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13 | import schedframe.implementation.Reservation; |
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14 | import schedframe.implementation.TimeResourceAllocation; |
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15 | import schedframe.implementation.TimeSlot; |
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16 | import schedframe.resUnits.PEResourceUnit; |
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17 | import simulator.VirtualClock; |
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18 | |
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19 | public class ResourceUsageDynamic { |
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20 | |
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21 | private static final long TIME_BORDER=1000 * 60 * 60 * 24 * 7 * 2;//two weeks |
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22 | private ReservationList<Reservation> reservationList; |
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23 | private long timeInterval; |
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24 | private int cpuCount; |
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25 | |
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26 | public ResourceUsageDynamic(ReservationList<Reservation> reservationList, |
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27 | long timeInterval) { |
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28 | this.reservationList = reservationList; |
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29 | this.timeInterval = timeInterval; |
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30 | this.cpuCount = reservationList.cpuCount; |
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31 | } |
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32 | |
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33 | public TimeResourceAllocation[] getResourceUsage() { |
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34 | |
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35 | LinkedHashSet<Long> reservationsTimestampsSet = createReservationsTimestampsSet(); |
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36 | //System.out.println("reservationsTimestampsSet "+reservationsTimestampsSet); |
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37 | TreeMap<Long, Integer> reservationsCalendar = createReservationsCalendar(reservationsTimestampsSet); |
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38 | //System.out.println("reservationsCalendar "+reservationsCalendar); |
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39 | LinkedHashSet<Long> timestampsSet = createTimestampsSet(); |
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40 | //System.out.println("timestampsSet "+timestampsSet); |
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41 | TreeMap<Long, Integer> calendar = createCalendar(timestampsSet, |
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42 | reservationsCalendar); |
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43 | TimeResourceAllocation[] slots; |
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44 | |
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45 | if(calendar.size()==0){ |
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46 | |
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47 | TreeMap<Long, Integer> emptyCalendar = createEmptyCalendar(); |
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48 | slots = new TimeResourceAllocation[emptyCalendar.size()+1]; |
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49 | Iterator<Long> it = emptyCalendar.keySet().iterator(); |
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50 | int counter = 0; |
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51 | Calendar endTime = Calendar.getInstance(); |
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52 | while (it.hasNext()) { |
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53 | Long time = (Long) it.next(); |
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54 | PEResourceUnit resUnit = new PEResourceUnit(cpuCount-emptyCalendar.get(time)); |
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55 | Calendar startTime = Calendar.getInstance(); |
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56 | startTime.setTimeInMillis(time - timeInterval); |
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57 | endTime = Calendar.getInstance(); |
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58 | endTime.setTimeInMillis(time); |
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59 | slots[counter] = new TimeResourceAllocation(resUnit, startTime, |
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60 | endTime); |
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61 | counter++; |
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62 | |
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63 | } |
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64 | PEResourceUnit resUnit= new PEResourceUnit(cpuCount); |
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65 | Calendar maxEndTime=Calendar.getInstance(); |
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66 | maxEndTime.setTimeInMillis(VirtualClock.getCurrentGlobalTimeCalendar().getTimeInMillis()+TIME_BORDER); |
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67 | slots[counter] = new TimeResourceAllocation(resUnit, endTime, |
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68 | maxEndTime); |
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69 | return slots; |
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70 | /*slots = new TimeResourceAllocation[1]; |
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71 | PEResourceUnit resUnit = new PEResourceUnit(cpuCount); |
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72 | Calendar startTime=VirtualClock.getCurrentGlobalTimeCalendar(); |
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73 | Calendar endTime=Calendar.getInstance(); |
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74 | endTime.setTimeInMillis(VirtualClock.getCurrentGlobalTimeCalendar().getTimeInMillis()+week); |
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75 | slots[0]=(new TimeResourceAllocation(resUnit, startTime, endTime)); |
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76 | return slots;*/ |
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77 | } else { |
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78 | slots = new TimeResourceAllocation[calendar |
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79 | .size()+1]; |
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80 | Iterator<Long> it = calendar.keySet().iterator(); |
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81 | int counter = 0; |
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82 | Calendar endTime = Calendar.getInstance(); |
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83 | while (it.hasNext()) { |
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84 | Long time = (Long) it.next(); |
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85 | PEResourceUnit resUnit = new PEResourceUnit(cpuCount-calendar.get(time)); |
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86 | Calendar startTime = Calendar.getInstance(); |
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87 | startTime.setTimeInMillis(time - timeInterval); |
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88 | endTime = Calendar.getInstance(); |
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89 | endTime.setTimeInMillis(time); |
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90 | slots[counter] = new TimeResourceAllocation(resUnit, startTime, |
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91 | endTime); |
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92 | counter++; |
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93 | |
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94 | } |
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95 | PEResourceUnit resUnit= new PEResourceUnit(cpuCount); |
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96 | Calendar maxEndTime=Calendar.getInstance(); |
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97 | maxEndTime.setTimeInMillis(VirtualClock.getCurrentGlobalTimeCalendar().getTimeInMillis()+TIME_BORDER); |
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98 | slots[counter] = new TimeResourceAllocation(resUnit, endTime, |
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99 | maxEndTime); |
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100 | return slots; |
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101 | } |
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102 | |
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103 | } |
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104 | |
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105 | public boolean checkReservation(TimeSlot timeSlot, int size) { |
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106 | if (timeSlot.getDurationInMillis() <= 0) |
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107 | return false; |
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108 | LinkedHashSet<Long> reservationsTimestampsSet = createReservationsTimestampsSet(); |
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109 | TreeMap<Long, Integer> reservationsCalendar = createReservationsCalendar(reservationsTimestampsSet); |
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110 | LinkedHashSet<Long> timestampsSet = createTimestampsSet(); |
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111 | TreeMap<Long, Integer> calendar = createCalendar(timestampsSet, |
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112 | reservationsCalendar); |
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113 | if(calendar.size()==0){ |
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114 | if (cpuCount >= size) |
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115 | return true; |
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116 | } |
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117 | int value = getMaxCalendarValue(calendar, timeSlot.getStartTime() |
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118 | .getTime(), timeSlot.getEndTime().getTime()); |
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119 | if (cpuCount - value >= size) |
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120 | return true; |
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121 | return false; |
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122 | } |
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123 | |
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124 | public TimeSlot findInterval(TimeSlot timeSlot, long interval, int size) { |
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125 | if (timeSlot.getDurationInMillis() <= 0 || interval == 0 |
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126 | || timeSlot.getDurationInMillis() < interval) |
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127 | return null; |
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128 | LinkedHashSet<Long> reservationsTimestampsSet = createReservationsTimestampsSet(); |
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129 | TreeMap<Long, Integer> reservationsCalendar = createReservationsCalendar(reservationsTimestampsSet); |
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130 | LinkedHashSet<Long> timestampsSet = createTimestampsSet(); |
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131 | TreeMap<Long, Integer> calendar = createCalendar(timestampsSet, |
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132 | reservationsCalendar); |
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133 | if(calendar.size()==0){ |
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134 | return new TimeSlot(timeSlot.getStartTimeInMillis(), timeSlot.getStartTimeInMillis() + interval); |
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135 | } |
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136 | Date availableStartDate = getAvailableStartDate(calendar, timeSlot |
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137 | .getStartTime().getTime(), timeSlot.getEndTime().getTime(), |
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138 | interval, size); |
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139 | if (availableStartDate == null) |
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140 | return null; |
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141 | TimeSlot availableTimeSlot = new TimeSlot(availableStartDate.getTime(), |
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142 | availableStartDate.getTime() + interval); |
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143 | return availableTimeSlot; |
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144 | } |
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145 | |
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146 | private LinkedHashSet<Long> createTimestampsSet() { |
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147 | LinkedHashSet<Long> timestampsSet = new LinkedHashSet<Long>(); |
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148 | long time = VirtualClock.getCurrentGlobalTimeCalendar().getTimeInMillis() + timeInterval; |
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149 | long lastReservationEndTime = 0; |
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150 | if(reservationList.size()==0) |
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151 | return timestampsSet; |
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152 | lastReservationEndTime = ((Reservation) reservationList.getLast()) |
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153 | .getSlot().getEndTime().getTime().getTime(); |
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154 | while (time < lastReservationEndTime) { |
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155 | timestampsSet.add(time); |
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156 | time = time + timeInterval; |
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157 | |
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158 | } |
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159 | timestampsSet.add(time); |
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160 | //timestampsSet.add(Long.MAX_VALUE); |
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161 | return timestampsSet; |
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162 | } |
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163 | |
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164 | private TreeMap<Long, Integer> createCalendar( |
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165 | LinkedHashSet<Long> timestampsSet, |
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166 | TreeMap<Long, Integer> reservationsCalendar) { |
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167 | TreeMap<Long, Integer> calendar = new TreeMap<Long, Integer>(); |
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168 | |
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169 | Iterator<Long> it = timestampsSet.iterator(); |
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170 | Integer value; |
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171 | while (it.hasNext()) { |
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172 | Long time = (Long) it.next(); |
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173 | TreeMap<Long, Integer> partOfCalendar = getContinousPartOfCalendar( |
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174 | reservationsCalendar, time - timeInterval, false, time, |
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175 | true); |
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176 | if (partOfCalendar.size() == 0) |
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177 | value = 0; |
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178 | else |
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179 | value = (Integer) Collections.max(partOfCalendar.values()); |
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180 | calendar.put(time, value); |
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181 | |
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182 | } |
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183 | |
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184 | return calendar; |
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185 | } |
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186 | |
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187 | private TreeMap<Long, Integer> createEmptyCalendar() { |
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188 | TreeMap<Long, Integer> emptyCalendar = new TreeMap<Long, Integer>(); |
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189 | |
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190 | long time=VirtualClock.getCurrentGlobalTimeCalendar().getTimeInMillis() + timeInterval; |
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191 | while (time<VirtualClock.getCurrentGlobalTimeCalendar().getTimeInMillis() + TIME_BORDER) { |
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192 | |
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193 | emptyCalendar.put(time, 0); |
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194 | time = time + timeInterval; |
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195 | |
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196 | } |
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197 | return emptyCalendar; |
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198 | } |
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199 | |
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200 | private LinkedHashSet<Long> createReservationsTimestampsSet() { |
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201 | LinkedHashSet<Long> reservationsTimestampsSet = new LinkedHashSet<Long>(); |
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202 | Iterator it = reservationList.iterator(); |
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203 | while (it.hasNext()) { |
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204 | Reservation reservation = (Reservation) it.next(); |
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205 | long time = reservation.getSlot().getStartTime().getTime() |
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206 | .getTime(); |
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207 | reservationsTimestampsSet.add(time); |
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208 | time = reservation.getSlot().getEndTime().getTime().getTime(); |
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209 | reservationsTimestampsSet.add(time); |
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210 | |
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211 | } |
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212 | return reservationsTimestampsSet; |
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213 | } |
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214 | |
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215 | private TreeMap<Long, Integer> createReservationsCalendar( |
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216 | LinkedHashSet<Long> reservationsTimestampsSet) { |
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217 | TreeMap<Long, Integer> reservationsCalendar = new TreeMap<Long, Integer>(); |
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218 | |
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219 | Iterator<Long> it = reservationsTimestampsSet.iterator(); |
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220 | while (it.hasNext()) { |
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221 | Long time = (Long) it.next(); |
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222 | reservationsCalendar.put(time, 0); |
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223 | } |
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224 | Iterator it2 = reservationList.iterator(); |
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225 | while (it2.hasNext()) { |
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226 | Reservation reservation = (Reservation) it2.next(); |
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227 | long startTime = reservation.getSlot().getStartTime().getTime() |
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228 | .getTime(); |
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229 | long endTime = reservation.getSlot().getEndTime().getTime() |
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230 | .getTime(); |
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231 | Iterator<Long> it3 = reservationsCalendar.keySet().iterator(); |
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232 | while (it3.hasNext()) { |
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233 | Long time = (Long) it3.next(); |
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234 | if (time > startTime && time <= endTime) { |
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235 | reservationsCalendar.put(time, |
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236 | (Integer) reservationsCalendar.get(time) |
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237 | + (int) reservation.getSlot() |
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238 | .getResourceUnit(Constants.PE) |
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239 | .getAmount()); |
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240 | } |
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241 | } |
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242 | |
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243 | } |
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244 | return reservationsCalendar; |
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245 | } |
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246 | |
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247 | private int getMaxCalendarValue(TreeMap<Long, Integer> calendar, |
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248 | Date startDate, Date endDate) { |
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249 | long endDateInCalendar = getCeilKey(calendar, endDate.getTime()); |
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250 | TreeMap<Long, Integer> partOfCalendar = getContinousPartOfCalendar( |
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251 | calendar, startDate.getTime(), false, endDateInCalendar, true); |
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252 | Integer value; |
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253 | if (partOfCalendar.size() == 0) |
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254 | value = 0; |
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255 | else |
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256 | value = (Integer) Collections.max(partOfCalendar.values()); |
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257 | return value; |
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258 | } |
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259 | |
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260 | private long getCeilKey(TreeMap<Long, Integer> calendar, Long key) { |
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261 | Iterator<Long> it = calendar.keySet().iterator(); |
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262 | while (it.hasNext()) { |
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263 | Long time = (Long) it.next(); |
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264 | if (time >= key) |
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265 | return time; |
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266 | } |
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267 | return key; |
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268 | } |
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269 | |
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270 | private TreeMap<Long, Integer> getContinousPartOfCalendar( |
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271 | TreeMap<Long, Integer> calendar, long startKey, |
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272 | boolean includeStartKey, long endKey, boolean includeEndKey) { |
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273 | |
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274 | TreeMap<Long, Integer> partOfCalendar = new TreeMap<Long, Integer>(); |
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275 | SortedMap<Long, Integer> tailCalendar = calendar.tailMap(startKey); |
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276 | Iterator<Long> it = tailCalendar.keySet().iterator(); |
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277 | while (it.hasNext()) { |
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278 | Long time = (Long) it.next(); |
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279 | if (time > startKey && time < endKey) { |
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280 | partOfCalendar.put(time, getCalendarValue(calendar, time)); |
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281 | } |
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282 | if (time == startKey && includeStartKey) { |
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283 | partOfCalendar.put(time, getCalendarValue(calendar, time)); |
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284 | } |
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285 | if (time == endKey && includeEndKey) { |
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286 | partOfCalendar.put(time, getCalendarValue(calendar, time)); |
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287 | } |
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288 | if (includeStartKey) |
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289 | partOfCalendar.put(startKey, getCalendarValue(calendar, |
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290 | startKey)); |
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291 | if (includeEndKey) |
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292 | partOfCalendar.put(endKey, getCalendarValue(calendar, endKey)); |
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293 | if (time >= endKey) { |
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294 | break; |
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295 | } |
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296 | |
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297 | } |
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298 | return partOfCalendar; |
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299 | } |
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300 | |
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301 | private Date getAvailableStartDate(TreeMap<Long, Integer> calendar, |
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302 | Date startDate, Date endDate, long interval, int size) { |
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303 | if (endDate.getTime() > calendar.lastKey()) |
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304 | calendar.put(endDate.getTime(), 0); |
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305 | long endDateInCalendar = getCeilKey(calendar, endDate.getTime()); |
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306 | TreeMap<Long, Integer> partOfCalendar = getContinousPartOfCalendar( |
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307 | calendar, startDate.getTime(), false, endDateInCalendar, true); |
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308 | if (partOfCalendar.size() == 0) |
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309 | return startDate; |
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310 | TreeMap<Long, Integer> partOfCalendar2; |
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311 | { |
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312 | endDateInCalendar = getCeilKey(partOfCalendar, startDate.getTime() |
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313 | + (long) interval); |
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314 | partOfCalendar2 = getContinousPartOfCalendar(partOfCalendar, |
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315 | partOfCalendar.firstKey(), true, endDateInCalendar, true); |
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316 | Integer value; |
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317 | if (partOfCalendar2.size() == 0) |
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318 | value = 0; |
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319 | else |
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320 | value = (Integer) Collections.max(partOfCalendar2.values()); |
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321 | if (cpuCount - value >= size) { |
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322 | return startDate; |
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323 | } |
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324 | } |
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325 | Iterator<Long> it = partOfCalendar.keySet().iterator(); |
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326 | while (it.hasNext()) { |
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327 | |
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328 | Long time = (Long) it.next(); |
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329 | if (time + interval > endDate.getTime()) { |
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330 | return null; |
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331 | } |
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332 | endDateInCalendar = getCeilKey(partOfCalendar, time |
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333 | + (long) interval); |
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334 | |
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335 | partOfCalendar2 = getContinousPartOfCalendar(partOfCalendar, time, |
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336 | false, endDateInCalendar, true); |
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337 | |
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338 | Integer value; |
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339 | if (partOfCalendar2.size() == 0) |
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340 | value = 0; |
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341 | else |
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342 | value = (Integer) Collections.max(partOfCalendar2.values()); |
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343 | if (cpuCount - value >= size) { |
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344 | return new Date(time); |
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345 | } |
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346 | |
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347 | } |
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348 | return null; |
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349 | } |
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350 | |
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351 | public int getCalendarValue(TreeMap<Long, Integer> calendar, long time) { |
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352 | |
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353 | SortedMap<Long, Integer> tailCalendar = calendar.tailMap(time); |
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354 | Iterator<Long> it = tailCalendar.keySet().iterator(); |
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355 | while (it.hasNext()) { |
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356 | Long keyTime = (Long) it.next(); |
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357 | if (keyTime >= time) |
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358 | return calendar.get(keyTime); |
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359 | } |
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360 | return 0; |
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361 | |
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362 | } |
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363 | |
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364 | } |
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365 | |
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