9f25e68047c3017c943f9b2a981af89125efdd5d
[taxeditor.git] / eu.etaxonomy.taxeditor.store / src / main / java / eu / etaxonomy / taxeditor / view / CdmViewerUtil.java
1 // $Id$
2 /**
3 * Copyright (C) 2015 EDIT
4 * European Distributed Institute of Taxonomy
5 * http://www.e-taxonomy.eu
6 *
7 * The contents of this file are subject to the Mozilla Public License Version 1.1
8 * See LICENSE.TXT at the top of this package for the full license terms.
9 */
10 package eu.etaxonomy.taxeditor.view;
11
12 import java.util.HashMap;
13 import java.util.Map;
14
15 import org.eclipse.core.commands.Command;
16 import org.eclipse.core.runtime.IConfigurationElement;
17 import org.eclipse.core.runtime.IExtensionRegistry;
18 import org.eclipse.core.runtime.Platform;
19 import org.eclipse.ui.PlatformUI;
20 import org.eclipse.ui.commands.ICommandService;
21
22 import eu.etaxonomy.cdm.api.service.IOccurrenceService;
23 import eu.etaxonomy.cdm.api.service.ITaxonService;
24 import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
25 import eu.etaxonomy.cdm.model.taxon.Synonym;
26 import eu.etaxonomy.cdm.model.taxon.Taxon;
27 import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;
28 import eu.etaxonomy.taxeditor.model.MessagingUtils;
29 import eu.etaxonomy.taxeditor.store.CdmStore;
30
31 /**
32 * Scans eu.etaxonomy.taxeditor.store.cdmViewer extension point.
33 * @author pplitzner
34 * @date Jul 7, 2015
35 *
36 */
37 public class CdmViewerUtil {
38
39 /**
40 * Returns a map of available commands to open the given input.
41 * Keys are the command IDs and values are their string representations.
42 *
43 * @param input
44 * the object which should be handled by the available commands
45 * @return a key-value map of available commands and their string
46 * representation
47 */
48 public static Map<Command, String> getAvailableViewers(Object input){
49 Map<Command, String> commandViewerNameMap = new HashMap<Command, String>();
50
51 if(input!=null){
52 //for generic UuidAndTitleCache objects try to load the object
53 if (input instanceof UuidAndTitleCache){
54 UuidAndTitleCache uuidAndTitleCache = (UuidAndTitleCache)input;
55 Class type = uuidAndTitleCache.getType();
56 if(type == Taxon.class || type == Synonym.class){
57 input = CdmStore.getService(ITaxonService.class).load(uuidAndTitleCache.getUuid());
58 }
59 else if(SpecimenOrObservationBase.class.isAssignableFrom(type)){
60 input = CdmStore.getService(IOccurrenceService.class).load(uuidAndTitleCache.getUuid());
61 }
62 }
63
64
65 IExtensionRegistry reg = Platform.getExtensionRegistry();
66 IConfigurationElement[] extensions = reg
67 .getConfigurationElementsFor("eu.etaxonomy.taxeditor.store.cdmViewer"); //$NON-NLS-1$
68 for (IConfigurationElement configElement : extensions) {
69 if(configElement.getName().equals("viewCommandMapping")){ //$NON-NLS-1$
70 try {
71 String commandId = configElement.getAttribute("commandId"); //$NON-NLS-1$
72 String viewerName = configElement.getAttribute("viewerName"); //$NON-NLS-1$
73 Class<?> selectionClass = Class.forName(configElement.getAttribute("selection")); //$NON-NLS-1$
74 if(selectionClass.isAssignableFrom(input.getClass())){
75 ICommandService commandService = (ICommandService)PlatformUI.getWorkbench().getService(ICommandService.class);
76 Command command = commandService.getCommand(commandId);
77 if(command.isEnabled()){
78 commandViewerNameMap.put(command, viewerName);
79 }
80 }
81 } catch (ClassNotFoundException e) {
82 MessagingUtils.error(CdmViewerChooser.class, "Could not initalize selection class element of cdmViewer extension", e); //$NON-NLS-1$
83 }
84 }
85 }
86 }
87 return commandViewerNameMap;
88 }
89
90 }