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1 | /************************************************************************************ |
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2 | * Copyright (C) 2008 by Politehnica University of Bucharest and Rutgers University |
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3 | * All rights reserved. |
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4 | * Refer to LICENSE for terms and conditions of use. |
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5 | ***********************************************************************************/ |
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6 | package vnsim.vehicular.generator; |
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7 | |
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8 | import java.util.*; |
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9 | |
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10 | public class EntryFlowVariation { |
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11 | |
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12 | //sorted by time |
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13 | |
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14 | ArrayList<Integer> times; //simulation time |
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15 | ArrayList<Integer> flow; |
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16 | |
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17 | public EntryFlowVariation(){ |
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18 | times=new ArrayList<Integer> (); |
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19 | flow=new ArrayList<Integer> (); |
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20 | } |
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21 | |
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22 | public int getFirstValue() { |
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23 | if(flow.size()<0) |
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24 | return -1; |
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25 | return flow.get(0); |
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26 | } |
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27 | |
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28 | public void removeFirst() { |
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29 | times.remove(0); |
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30 | flow.remove(0); |
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31 | } |
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32 | |
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33 | public int getFirstMom() { |
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34 | if(times.size()==0) |
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35 | return -1; |
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36 | return times.get(0); |
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37 | } |
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38 | |
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39 | public void add(int mom, int val) { |
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40 | if(times.size()>0) { |
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41 | int last=times.get(times.size()-1); |
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42 | if(mom<last) { |
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43 | System.err.println("WARNING! Skipped adding time = "+mom+" NOT LAST!"); |
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44 | return; |
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45 | } |
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46 | } |
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47 | times.add(mom); |
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48 | flow.add(val); |
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49 | } |
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50 | } |
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