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1 package org.columba.core.context;
2
3 import java.util.Collection  ;
4 import java.util.Hashtable ;
5 import java.util.Map ;
6
7 import javax.swing.SwingUtilities ;
8 import javax.swing.event.EventListenerList ;
9
10 import org.columba.api.command.ICommandReference;
11 import org.columba.api.command.IWorkerStatusController;
12 import org.columba.api.gui.frame.IFrameMediator;
13 import org.columba.core.command.Command;
14 import org.columba.core.command.CommandProcessor;
15 import org.columba.core.command.DefaultCommandReference;
16 import org.columba.core.context.api.IContextProvider;
17 import org.columba.core.context.api.IContextResultEvent;
18 import org.columba.core.context.api.IContextResultListener;
19 import org.columba.core.context.api.IContextSearchManager;
20
21 public class ContextSearchManager implements IContextSearchManager {
22
23 private static final int RESULT_COUNT = 10;
24
25 private final Map <String , IContextProvider> map = new Hashtable <String , IContextProvider>();
26
27 IFrameMediator frameMediator;
28
29 protected EventListenerList listenerList = new EventListenerList ();
30
31 public ContextSearchManager(final IFrameMediator theFrameMediator) {
32 this.frameMediator = theFrameMediator;
33 }
34
35 public void register(final IContextProvider provider) {
36 map.put(provider.getTechnicalName(), provider);
37 }
38
39 public void unregister(final IContextProvider provider) {
40 map.remove(provider.getTechnicalName());
41 }
42
43 public IContextProvider getProvider(final String technicalName) {
44 return map.get(technicalName);
45 }
46
47 public Collection <IContextProvider> getAllProviders() {
48 return map.values();
49 }
50
51 public void addResultListener(final IContextResultListener listener) {
52 listenerList.add(IContextResultListener.class, listener);
53 }
54
55 public void removeResultListener(final IContextResultListener listener) {
56 listenerList.remove(IContextResultListener.class, listener);
57 }
58
59 public void search() {
60 final SearchCommand command = new SearchCommand(
61 new DefaultCommandReference());
62 CommandProcessor.getInstance().addOp(command);
63 }
64
65 void fireFinished() {
66 final IContextResultEvent e = new ContextResultEvent(this);
67 final Object [] listeners = listenerList.getListenerList();
69
70 for (int i = listeners.length - 2; i >= 0; i -= 2) {
73 if (listeners[i] == IContextResultListener.class) {
74 ((IContextResultListener) listeners[i + 1]).finished(e);
75 }
76 }
77
78 }
79
80 void fireResultArrived(final String providerName) {
81 final IContextResultEvent e = new ContextResultEvent(this, providerName);
82 final Object [] listeners = listenerList.getListenerList();
84
85 for (int i = listeners.length - 2; i >= 0; i -= 2) {
88 if (listeners[i] == IContextResultListener.class) {
89 ((IContextResultListener) listeners[i + 1]).resultArrived(e);
90 }
91 }
92
93 }
94
95 class SearchCommand extends Command {
96
97 public SearchCommand(final ICommandReference reference) {
98 super(reference);
99 }
100
101 @Override
102 public void execute(final IWorkerStatusController worker)
103 throws Exception {
104 for (final IContextProvider p : getAllProviders()) {
105 p.clear();
106 p.search(frameMediator.getSemanticContext(), 0,
107 ContextSearchManager.RESULT_COUNT);
108
109 final Runnable run = new Runnable () {
112 public void run() {
113 fireResultArrived(p.getTechnicalName());
114 }
115 };
116 SwingUtilities.invokeLater(run);
117
118 }
119
120
122 Runnable run = new Runnable () {
123 public void run() {
124 fireFinished();
125 }
126 };
127 SwingUtilities.invokeLater(run);
128 }
129
130 @Override
131 public void updateGUI() throws Exception {
132 }
133
134 }
135
136 }
137 |
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