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org.apache.jcs.utils.timing.ElapsedTimer |
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1 | package org.apache.jcs.utils.timing; |
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2 | ||
3 | /* |
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4 | * Licensed to the Apache Software Foundation (ASF) under one |
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5 | * or more contributor license agreements. See the NOTICE file |
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6 | * distributed with this work for additional information |
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7 | * regarding copyright ownership. The ASF licenses this file |
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8 | * to you under the Apache License, Version 2.0 (the |
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9 | * "License"); you may not use this file except in compliance |
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10 | * with the License. You may obtain a copy of the License at |
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11 | * |
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12 | * http://www.apache.org/licenses/LICENSE-2.0 |
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13 | * |
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14 | * Unless required by applicable law or agreed to in writing, |
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15 | * software distributed under the License is distributed on an |
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16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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17 | * KIND, either express or implied. See the License for the |
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18 | * specific language governing permissions and limitations |
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19 | * under the License. |
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20 | */ |
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21 | ||
22 | /** |
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23 | * This is a simple timer utility. |
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24 | */ |
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25 | 476 | public class ElapsedTimer |
26 | { |
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27 | /** display suffix describing the unit of measure. */ |
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28 | private static final String SUFFIX = "ms."; |
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29 | ||
30 | /** |
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31 | * Sets the start time when created. |
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32 | */ |
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33 | 476 | private long timeStamp = System.currentTimeMillis(); |
34 | ||
35 | /** |
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36 | * Gets the time elapsed between the start time and now. The start time is reset to now. |
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37 | * Subsequent calls will get the time between then and now. |
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38 | * <p> |
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39 | * @return the elapsed time |
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40 | */ |
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41 | public long getElapsedTime() |
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42 | { |
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43 | 448 | long now = System.currentTimeMillis(); |
44 | 448 | long elapsed = now - timeStamp; |
45 | 448 | timeStamp = now; |
46 | 448 | return elapsed; |
47 | } |
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48 | ||
49 | /** |
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50 | * Retuns the elapsed time with the display suffix. |
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51 | * <p> |
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52 | * @return formatted elapsed Time |
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53 | */ |
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54 | public String getElapsedTimeString() |
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55 | { |
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56 | 448 | return String.valueOf( getElapsedTime() ) + SUFFIX; |
57 | } |
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58 | } |
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