1 | package org.expeditee.stats;
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2 |
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3 | import java.util.Date;
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4 |
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5 | public class AgentStats {
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6 |
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7 | private static int _ItemsExecuted = 0;
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8 |
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9 | private static int _FramesExecuted = 0;
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10 |
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11 | private static String SECONDS = "sec";
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12 |
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13 | private static Date _StartTime = new Date();
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14 |
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15 | private static String getTimeElapsedString() {
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16 | return "Time: " + getSecondsElapsed() + SECONDS;
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17 | }
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18 |
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19 | public static long getMilliSecondsElapsed() {
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20 | return new Date().getTime() - _StartTime.getTime();
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21 | }
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22 |
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23 | public static String getStats() {
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24 | StringBuffer stats = new StringBuffer();
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25 | stats.append("Run ").append(getTimeElapsedString()).append(
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26 | ", Processed ");
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27 | appendStat(stats, "frames", _FramesExecuted, ", ");
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28 | appendStat(stats, "items", _ItemsExecuted, "");
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29 | return stats.toString();
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30 | }
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31 |
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32 | private static double getSecondsElapsed() {
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33 | return (new Date().getTime() - _StartTime.getTime()) / 1000.0;
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34 | }
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35 |
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36 | /**
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37 | * Appends a single stats to a string buffer containing a collection of
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38 | * stats.
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39 | *
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40 | * @param stats
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41 | * The string buffer to append the stat onto
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42 | * @param name
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43 | * The name of the stat
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44 | * @param value
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45 | * The new value for the stat
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46 | */
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47 | private static void appendStat(StringBuffer stats, String name, int value,
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48 | String separator) {
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49 | // prevent divide by zero errors
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50 | if (value < 0)
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51 | value = 0;
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52 |
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53 | int perSec = (int) (value / Math.max(0.001, getSecondsElapsed()));
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54 |
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55 | stats.append(value).append(" ").append(name).append(" @ ").append(
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56 | perSec).append("/" + SECONDS);
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57 | stats.append(separator);
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58 | }
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59 |
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60 | public static void reset() {
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61 | _StartTime = new Date();
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62 | _FramesExecuted = 0;
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63 | _ItemsExecuted = 0;
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64 | }
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65 |
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66 | /**
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67 | * Called signal that a frame has been accessed.
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68 | *
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69 | */
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70 | public static void FrameExecuted() {
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71 | _FramesExecuted++;
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72 | }
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73 |
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74 | public static void ItemExecuted() {
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75 | _ItemsExecuted++;
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76 | }
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77 | }
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