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[1] | 1 | package de.ugoe.cs.eventbench.data;
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| 2 |
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| 3 | import java.util.HashMap;
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| 4 | import java.util.Map;
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| 5 |
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| 6 | public class GlobalDataContainer {
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| 7 |
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| 8 | private static GlobalDataContainer theInstance= null;
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| 9 |
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| 10 | private Map<String, Object> dataObjects;
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| 11 |
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| 12 | public static GlobalDataContainer getInstance() {
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| 13 | if( theInstance==null ) {
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| 14 | theInstance = new GlobalDataContainer();
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| 15 | }
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| 16 | return theInstance;
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| 17 | }
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| 18 |
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| 19 | private GlobalDataContainer() {
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| 20 | dataObjects = new HashMap<String, Object>();
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| 21 | }
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| 22 |
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| 23 | public boolean addData(String key, Object data) {
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| 24 | Object previousEntry = dataObjects.put(key, data);
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| 25 | return previousEntry!=null;
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| 26 | }
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| 27 |
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| 28 | public boolean removeData(String key) {
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| 29 | Object previousEntry = dataObjects.remove(key);
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| 30 | return previousEntry==null;
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| 31 | }
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| 32 |
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| 33 | public Object getData(String key) {
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| 34 | return dataObjects.get(key);
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| 35 | }
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| 36 |
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| 37 | public void reset() {
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| 38 | dataObjects = new HashMap<String, Object>();
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| 39 | }
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| 40 |
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| 41 | }
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