Mercurial > hg > de.mpg.mpiwg.itgroup.digilib.plugin

annotate src/de/mpg/mpiwg/itgroup/digilib/manipulator/DigilibImageManipulatorProvider.java @ 9:e63a64652f4d

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added comments
author dwinter
date Mon, 03 Jan 2011 16:53:48 +0100
parents 83c58ea33792
children
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1 package de.mpg.mpiwg.itgroup.digilib.manipulator;
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2
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3 import java.util.ArrayList;
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4 import java.util.HashMap;
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5 import java.util.List;
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6
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7 import org.eclipse.core.runtime.CoreException;
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8 import org.eclipse.core.runtime.IConfigurationElement;
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9 import org.eclipse.core.runtime.Platform;
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10
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12
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14 /**
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15 * This singleton class manages the property extensions.
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16 *
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17 * @author Julia Damerow
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18 * @author Dirk Wintergruen
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19 *
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20 */
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21 public class DigilibImageManipulatorProvider {
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22
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23 public static DigilibImageManipulatorProvider INSTANCE = new DigilibImageManipulatorProvider();
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24
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25 private List<IDigilibImageManipulator> propertyExtensions;
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26 private HashMap<String,IDigilibImageManipulator> propertyExtensionsMap;
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27
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29 private DigilibImageManipulatorProvider() {
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30 propertyExtensions = new ArrayList<IDigilibImageManipulator>();
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31 propertyExtensionsMap = new HashMap<String,IDigilibImageManipulator>();
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32
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33 IConfigurationElement[] configs = Platform.getExtensionRegistry().getConfigurationElementsFor("de.mpg.mpiwg.itgroup.digilib.plugin","DigilibImageManipulation");
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34 for (IConfigurationElement e : configs)
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35 {
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36 Object o = null;
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37 try {
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38 o = e.createExecutableExtension("class");
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39
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40 } catch (CoreException e1) {
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41 // TODO Auto-generated catch block
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42 e1.printStackTrace();
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43 continue;
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44 }
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45 if (o != null)
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46 {
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47 IDigilibImageManipulator dim = (IDigilibImageManipulator)o;
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48 propertyExtensions.add(dim);
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49 propertyExtensionsMap.put(dim.getKeyword(), dim);
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50 }
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51 }
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52 }
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53
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54 /**
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55 * Get all registered <code>DigilibImageManipulation</code>s.
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56 * @return a list with all registered <code>DigilibImageManipulation</code>s
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57 */
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58 public List<IDigilibImageManipulator> getAllManipulators()
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59 {
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60
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61 return propertyExtensions;
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62 }
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63
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64 public IDigilibImageManipulator getManipulator(String keyword) {
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65 return propertyExtensionsMap.get(keyword);
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66 }
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69 }