Source Code Cross Referenced for ConnectionManagerPanel.java in  » GIS » openjump » com » vividsolutions » jump » workbench » ui » plugin » datastore » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » openjump » com.vividsolutions.jump.workbench.ui.plugin.datastore 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package com.vividsolutions.jump.workbench.ui.plugin.datastore;
002:
003:        import java.awt.Component;
004:        import java.awt.Dialog;
005:        import java.awt.Dimension;
006:        import java.awt.Frame;
007:        import java.awt.GridBagConstraints;
008:        import java.awt.GridBagLayout;
009:        import java.awt.GridLayout;
010:        import java.awt.Window;
011:        import java.awt.event.ActionEvent;
012:        import java.awt.event.ActionListener;
013:        import java.util.ArrayList;
014:        import java.util.Arrays;
015:        import java.util.Collection;
016:        import java.util.Collections;
017:        import java.util.Comparator;
018:        import java.util.Iterator;
019:        import java.util.List;
020:
021:        import javax.swing.DefaultListCellRenderer;
022:        import javax.swing.DefaultListModel;
023:        import javax.swing.Icon;
024:        import javax.swing.ImageIcon;
025:        import javax.swing.JButton;
026:        import javax.swing.JLabel;
027:        import javax.swing.JList;
028:        import javax.swing.JOptionPane;
029:        import javax.swing.JPanel;
030:        import javax.swing.JScrollPane;
031:        import javax.swing.ListModel;
032:        import javax.swing.SwingUtilities;
033:        import javax.swing.event.ListSelectionEvent;
034:        import javax.swing.event.ListSelectionListener;
035:
036:        import com.vividsolutions.jump.I18N;
037:        import com.vividsolutions.jump.datastore.DataStoreConnection;
038:        import com.vividsolutions.jump.datastore.DataStoreDriver;
039:        import com.vividsolutions.jump.datastore.DataStoreException;
040:        import com.vividsolutions.jump.util.Block;
041:        import com.vividsolutions.jump.workbench.WorkbenchContext;
042:        import com.vividsolutions.jump.workbench.datastore.ConnectionDescriptor;
043:        import com.vividsolutions.jump.workbench.datastore.ConnectionManager;
044:        import com.vividsolutions.jump.workbench.registry.Registry;
045:        import com.vividsolutions.jump.workbench.ui.ErrorHandler;
046:        import com.vividsolutions.jump.workbench.ui.OKCancelDialog;
047:
048:        public class ConnectionManagerPanel extends JPanel {
049:            private Icon CONNECTED_ICON = new ImageIcon(
050:                    ConnectionManagerPanel.class
051:                            .getResource("green_circle.png"));
052:            private Icon DISCONNECTED_ICON = new ImageIcon(
053:                    ConnectionManagerPanel.class.getResource("small_red_x.png"));
054:            private Icon DBS_ICON = new ImageIcon(ConnectionManagerPanel.class
055:                    .getResource("databases.gif"));
056:            private Icon NEW_DB_ICON = new ImageIcon(
057:                    ConnectionManagerPanel.class.getResource("newDatabase.gif"));
058:            private Icon DELETE_DB_ICON = new ImageIcon(
059:                    ConnectionManagerPanel.class
060:                            .getResource("deleteDatabase.gif"));
061:
062:            // Partially generated using Eclipse Visual Editor [Jon Aquino 2005-03-08]
063:
064:            private JScrollPane scrollPane = null;
065:            private JList connectionJList = null;
066:            private JPanel buttonPanel = null;
067:            private JButton addButton = null;
068:            private JButton copyButton = null;
069:            private JButton deleteButton = null;
070:            private JButton connectButton = null;
071:            private JPanel fillerPanel = null;
072:            private JButton disconnectButton = null;
073:            private ConnectionManager connectionManager;
074:            private ErrorHandler errorHandler;
075:            private Registry registry;
076:            private WorkbenchContext context;
077:
078:            public ConnectionManagerPanel(ConnectionManager connectionManager,
079:                    Registry registry, ErrorHandler errorHandler,
080:                    WorkbenchContext context) {
081:                super ();
082:                initialize();
083:                this .connectionManager = connectionManager;
084:                this .registry = registry;
085:                this .errorHandler = errorHandler;
086:                this .context = context;
087:                initializeConnectionJList();
088:                updateButtons();
089:                connectionJList.getSelectionModel().addListSelectionListener(
090:                        new ListSelectionListener() {
091:                            public void valueChanged(ListSelectionEvent e) {
092:                                updateButtons();
093:                            }
094:                        });
095:            }
096:
097:            private void initializeConnectionJList() {
098:                connectionJList.setModel(createListModel());
099:            }
100:
101:            private void updateButtons() {
102:                boolean hasDrivers = !registry.getEntries(
103:                        DataStoreDriver.REGISTRY_CLASSIFICATION).isEmpty();
104:                boolean hasSelected = !getSelectedConnectionDescriptors()
105:                        .isEmpty();
106:                addButton.setEnabled(hasDrivers);
107:                copyButton.setEnabled(hasDrivers && hasSelected);
108:                deleteButton.setEnabled(!getSelectedConnectionDescriptors()
109:                        .isEmpty());
110:                connectButton.setEnabled(findSelectedConnection(new Block() {
111:                    public Object yield(Object connection) {
112:                        try {
113:                            return Boolean
114:                                    .valueOf(((DataStoreConnection) connection)
115:                                            .isClosed());
116:                        } catch (DataStoreException e) {
117:                            errorHandler.handleThrowable(e);
118:                            return Boolean.FALSE;
119:                        }
120:                    }
121:                }));
122:                disconnectButton.setEnabled(findSelectedConnection(new Block() {
123:                    public Object yield(Object connection) {
124:                        try {
125:                            return Boolean
126:                                    .valueOf(!((DataStoreConnection) connection)
127:                                            .isClosed());
128:                        } catch (DataStoreException e) {
129:                            errorHandler.handleThrowable(e);
130:                            return Boolean.FALSE;
131:                        }
132:                    }
133:                }));
134:            }
135:
136:            private boolean findSelectedConnection(Block criterion) {
137:                for (Iterator i = getSelectedConnectionDescriptors().iterator(); i
138:                        .hasNext();) {
139:                    ConnectionDescriptor connectionDescriptor = (ConnectionDescriptor) i
140:                            .next();
141:                    if (criterion.yield(connectionManager
142:                            .getConnection(connectionDescriptor)) == Boolean.TRUE) {
143:                        return true;
144:                    }
145:                }
146:                return false;
147:            }
148:
149:            private ListModel createListModel() {
150:                DefaultListModel listModel = new DefaultListModel();
151:                for (Iterator i = sort(
152:                        new ArrayList(connectionManager
153:                                .getConnectionDescriptors()), new Comparator() {
154:                            public int compare(Object a, Object b) {
155:                                return ((ConnectionDescriptor) a).toString()
156:                                        .compareTo(
157:                                                ((ConnectionDescriptor) b)
158:                                                        .toString());
159:                            }
160:                        }).iterator(); i.hasNext();) {
161:                    ConnectionDescriptor connectionDescriptor = (ConnectionDescriptor) i
162:                            .next();
163:                    listModel.addElement(connectionDescriptor);
164:                }
165:                return listModel;
166:            }
167:
168:            private List sort(List collection, Comparator comparator) {
169:                Collections.sort(collection, comparator);
170:                return collection;
171:            }
172:
173:            private void initialize() {
174:                GridBagConstraints gridBagConstraints1 = new GridBagConstraints();
175:                GridBagConstraints gridBagConstraints4 = new GridBagConstraints();
176:                GridBagConstraints gridBagConstraints2 = new GridBagConstraints();
177:                this .setLayout(new GridBagLayout());
178:                // Use #setPreferredSize rather than #setSize; otherwise if the
179:                // connection list is pre-populated with items, the preferred
180:                // size will be based on the preferred sizes of the items,
181:                // and will probably be too narrow. [Jon Aquino 2005-03-11]
182:                this .setPreferredSize(new Dimension(400, 300));
183:                gridBagConstraints2.gridx = 0;
184:                gridBagConstraints2.gridy = 0;
185:                gridBagConstraints2.weightx = 1.0;
186:                gridBagConstraints2.weighty = 1.0;
187:                gridBagConstraints2.fill = java.awt.GridBagConstraints.BOTH;
188:                gridBagConstraints2.gridheight = 2;
189:                gridBagConstraints2.insets = new java.awt.Insets(5, 5, 5, 5);
190:                gridBagConstraints4.gridx = 1;
191:                gridBagConstraints4.gridy = 1;
192:                gridBagConstraints4.weighty = 1.0D;
193:                gridBagConstraints4.fill = java.awt.GridBagConstraints.BOTH;
194:                gridBagConstraints1.insets = new java.awt.Insets(5, 0, 0, 5);
195:                this .add(getScrollPane(), gridBagConstraints2);
196:                this .add(getButtonPanel(), gridBagConstraints1);
197:                this .add(getFillerPanel(), gridBagConstraints4);
198:            }
199:
200:            private JScrollPane getScrollPane() {
201:                if (scrollPane == null) {
202:                    scrollPane = new JScrollPane();
203:                    scrollPane.setViewportView(getConnectionJList());
204:                }
205:                return scrollPane;
206:            }
207:
208:            private JList getConnectionJList() {
209:                if (connectionJList == null) {
210:                    connectionJList = new JList();
211:                    connectionJList
212:                            .setCellRenderer(new DefaultListCellRenderer() {
213:
214:                                public Component getListCellRendererComponent(
215:                                        JList list, Object value, int index,
216:                                        boolean isSelected, boolean cellHasFocus) {
217:                                    ConnectionDescriptor connectionDescriptor = (ConnectionDescriptor) value;
218:                                    super .getListCellRendererComponent(list,
219:                                            connectionDescriptor, index,
220:                                            isSelected, cellHasFocus);
221:                                    try {
222:                                        setIcon(connectionManager
223:                                                .getConnection(
224:                                                        connectionDescriptor)
225:                                                .isClosed() ? DISCONNECTED_ICON
226:                                                : CONNECTED_ICON);
227:                                    } catch (DataStoreException e) {
228:                                        errorHandler.handleThrowable(e);
229:                                    }
230:                                    return this ;
231:                                }
232:                            });
233:                }
234:                return connectionJList;
235:            }
236:
237:            private JPanel getButtonPanel() {
238:                if (buttonPanel == null) {
239:                    GridLayout gridLayout3 = new GridLayout();
240:                    gridLayout3.setRows(6);
241:                    gridLayout3.setVgap(5);
242:                    gridLayout3.setColumns(1);
243:                    gridLayout3.setHgap(0);
244:
245:                    buttonPanel = new JPanel();
246:                    buttonPanel.setLayout(gridLayout3);
247:                    buttonPanel.add(getAddButton(), null);
248:                    buttonPanel.add(getCopyButton(), null);
249:                    buttonPanel.add(getDeleteButton(), null);
250:                    buttonPanel.add(new JLabel());
251:                    buttonPanel.add(getConnectButton(), null);
252:                    buttonPanel.add(getDisconnectButton(), null);
253:                }
254:                return buttonPanel;
255:            }
256:
257:            private JButton getAddButton() {
258:                if (addButton == null) {
259:                    addButton = new JButton();
260:                    addButton.setIcon(NEW_DB_ICON);
261:                    addButton
262:                            .setText(I18N
263:                                    .get("jump.workbench.ui.plugin.datastore.ConnectionManagerPanel.Add"));
264:                    addButton
265:                            .addActionListener(new java.awt.event.ActionListener() {
266:                                public void actionPerformed(
267:                                        java.awt.event.ActionEvent e) {
268:                                    ConnectionDescriptor connectionDescriptor = addConnection();
269:                                    initializeConnectionJList();
270:                                    if (connectionDescriptor != null) {
271:                                        getConnectionJList().setSelectedValue(
272:                                                connectionDescriptor, true);
273:                                    }
274:                                    updateButtons();
275:                                }
276:                            });
277:                }
278:                return addButton;
279:            }
280:
281:            private JButton getCopyButton() {
282:                if (copyButton == null) {
283:                    copyButton = new JButton();
284:                    copyButton.setIcon(DBS_ICON);
285:                    copyButton
286:                            .setText(I18N
287:                                    .get("jump.workbench.ui.plugin.datastore.ConnectionManagerPanel.Copy"));
288:                    copyButton
289:                            .addActionListener(new java.awt.event.ActionListener() {
290:                                public void actionPerformed(
291:                                        java.awt.event.ActionEvent e) {
292:                                    ConnectionDescriptor connectionDescriptor = copyConnection();
293:                                    initializeConnectionJList();
294:                                    if (connectionDescriptor != null) {
295:                                        getConnectionJList().setSelectedValue(
296:                                                connectionDescriptor, true);
297:                                    }
298:                                    updateButtons();
299:                                }
300:                            });
301:                }
302:                return copyButton;
303:            }
304:
305:            private ConnectionDescriptor copyConnection() {
306:                return addOrCopyConnection(
307:                        I18N
308:                                .get("jump.workbench.ui.plugin.datastore.ConnectionManagerPanel.Copy-Connection"),
309:                        getSelectedConnection());
310:            }
311:
312:            private ConnectionDescriptor addConnection() {
313:                // MD - this behavior no longer needed?
314:                if (registry
315:                        .getEntries(DataStoreDriver.REGISTRY_CLASSIFICATION)
316:                        .isEmpty()) {
317:                    JOptionPane
318:                            .showMessageDialog(
319:                                    SwingUtilities.windowForComponent(this ),
320:                                    I18N
321:                                            .get("jump.workbench.ui.plugin.datastore.ConnectionManagerPanel.No-datastore-drivers-are-loaded"));
322:                    return null;
323:                }
324:                return addOrCopyConnection(
325:                        I18N
326:                                .get("jump.workbench.ui.plugin.datastore.ConnectionManagerPanel.Add-Connection"),
327:                        null);
328:            }
329:
330:            private ConnectionDescriptor addOrCopyConnection(String title,
331:                    ConnectionDescriptor connDesc) {
332:                Window window = SwingUtilities
333:                        .windowForComponent(ConnectionManagerPanel.this );
334:                OKCancelDialog.Validator validator = new OKCancelDialog.Validator() {
335:                    public String validateInput(Component component) {
336:                        return ((ConnectionDescriptorPanel) component)
337:                                .validateInput();
338:                    }
339:                };
340:                final ConnectionDescriptorPanel connectionDescriptorPanel = new ConnectionDescriptorPanel(
341:                        registry, context);
342:                if (connDesc != null)
343:                    connectionDescriptorPanel.setParameters(connDesc);
344:                final OKCancelDialog dialog = window instanceof  Dialog ? new OKCancelDialog(
345:                        (Dialog) window, title, true,
346:                        connectionDescriptorPanel, validator)
347:                        : new OKCancelDialog((Frame) window, title, true,
348:                                connectionDescriptorPanel, validator);
349:                dialog.setVisible(true);
350:                if (!dialog.wasOKPressed()) {
351:                    return null;
352:                }
353:                try {
354:                    // Don't use PasswordPrompter dialog, as the user has already
355:                    // entered a password in the ConnectionDescriptorPanel
356:                    // [Jon Aquino 2005-03-15]
357:                    connectionManager
358:                            .getOpenConnection(connectionDescriptorPanel
359:                                    .getConnectionDescriptor());
360:                } catch (Exception e) {
361:                    e.printStackTrace(System.err);
362:                    // At least make sure a closed connection exists, so
363:                    // a connection appears in the list box. [Jon Aquino 2005-03-09]
364:                    connectionManager.getConnection(connectionDescriptorPanel
365:                            .getConnectionDescriptor());
366:                }
367:                return connectionDescriptorPanel.getConnectionDescriptor();
368:            }
369:
370:            private JButton getDeleteButton() {
371:                if (deleteButton == null) {
372:                    deleteButton = new JButton();
373:                    deleteButton.setIcon(DELETE_DB_ICON);
374:                    deleteButton
375:                            .setText(I18N
376:                                    .get("jump.workbench.ui.plugin.datastore.ConnectionManagerPanel.Delete"));
377:                    deleteButton
378:                            .addActionListener(new java.awt.event.ActionListener() {
379:                                public void actionPerformed(
380:                                        java.awt.event.ActionEvent e) {
381:                                    try {
382:                                        deleteSelectedConnections();
383:                                    } catch (DataStoreException x) {
384:                                        errorHandler.handleThrowable(x);
385:                                    }
386:                                    initializeConnectionJList();
387:                                    updateButtons();
388:                                }
389:                            });
390:                }
391:                return deleteButton;
392:            }
393:
394:            private JButton getConnectButton() {
395:                if (connectButton == null) {
396:                    connectButton = new JButton();
397:                    connectButton.setIcon(CONNECTED_ICON);
398:                    connectButton
399:                            .setText(I18N
400:                                    .get("jump.workbench.ui.plugin.datastore.ConnectionManagerPanel.Connect"));
401:                    connectButton.addActionListener(new ActionListener() {
402:                        public void actionPerformed(ActionEvent e) {
403:                            try {
404:                                openSelectedConnections();
405:                            } catch (Exception x) {
406:                                errorHandler.handleThrowable(x);
407:                            }
408:                            updateButtons();
409:                            repaintConnectionJList();
410:                        }
411:                    });
412:                }
413:                return connectButton;
414:            }
415:
416:            private JPanel getFillerPanel() {
417:                if (fillerPanel == null) {
418:                    fillerPanel = new JPanel();
419:                    fillerPanel.setLayout(new GridBagLayout());
420:                }
421:                return fillerPanel;
422:            }
423:
424:            private JButton getDisconnectButton() {
425:                if (disconnectButton == null) {
426:                    disconnectButton = new JButton();
427:                    disconnectButton.setIcon(DISCONNECTED_ICON);
428:                    disconnectButton
429:                            .setText(I18N
430:                                    .get("jump.workbench.ui.plugin.datastore.ConnectionManagerPanel.Disconnect"));
431:                    disconnectButton
432:                            .addActionListener(new java.awt.event.ActionListener() {
433:                                public void actionPerformed(
434:                                        java.awt.event.ActionEvent e) {
435:                                    try {
436:                                        closeSelectedConnections();
437:                                    } catch (DataStoreException x) {
438:                                        errorHandler.handleThrowable(x);
439:                                    }
440:                                    updateButtons();
441:                                    repaintConnectionJList();
442:                                }
443:                            });
444:                }
445:                return disconnectButton;
446:            }
447:
448:            private void repaintConnectionJList() {
449:                connectionJList.repaint();
450:            }
451:
452:            /**
453:             * Gets the first selected connection, or null if none.
454:             *
455:             * @return the first selected connection
456:             * @return null if none selected
457:             */
458:            private ConnectionDescriptor getSelectedConnection() {
459:                for (Iterator i = getSelectedConnectionDescriptors().iterator(); i
460:                        .hasNext();) {
461:                    ConnectionDescriptor connectionDescriptor = (ConnectionDescriptor) i
462:                            .next();
463:                    return connectionDescriptor;
464:                }
465:                return null;
466:            }
467:
468:            private void deleteSelectedConnections() throws DataStoreException {
469:                for (Iterator i = getSelectedConnectionDescriptors().iterator(); i
470:                        .hasNext();) {
471:                    ConnectionDescriptor connectionDescriptor = (ConnectionDescriptor) i
472:                            .next();
473:                    connectionManager
474:                            .deleteConnectionDescriptor(connectionDescriptor);
475:                }
476:            }
477:
478:            private void openSelectedConnections() throws Exception {
479:                for (Iterator i = getSelectedConnectionDescriptors().iterator(); i
480:                        .hasNext();) {
481:                    ConnectionDescriptor connectionDescriptor = (ConnectionDescriptor) i
482:                            .next();
483:                    if (connectionManager.getConnection(connectionDescriptor)
484:                            .isClosed()) {
485:                        new PasswordPrompter().getOpenConnection(
486:                                connectionManager, connectionDescriptor, this );
487:                    }
488:                }
489:            }
490:
491:            private void closeSelectedConnections() throws DataStoreException {
492:                for (Iterator i = getSelectedConnectionDescriptors().iterator(); i
493:                        .hasNext();) {
494:                    ConnectionDescriptor connectionDescriptor = (ConnectionDescriptor) i
495:                            .next();
496:                    if (!connectionManager.getConnection(connectionDescriptor)
497:                            .isClosed()) {
498:                        connectionManager.getConnection(connectionDescriptor)
499:                                .close();
500:                    }
501:                }
502:            }
503:
504:            public Collection getSelectedConnectionDescriptors() {
505:                return Arrays.asList(connectionJList.getSelectedValues());
506:            }
507:
508:            /*
509:             public static void main(String[] args) throws Exception {
510:             UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
511:             JFrame frame = new JFrame("Connection Manager");
512:             frame.getContentPane().add(
513:             new ConnectionManagerPanel(ConnectionManager
514:             .instance(new Blackboard()), new Registry()
515:             .createEntry(DataStoreDriver.REGISTRY_CLASSIFICATION,
516:             new OracleDataStoreDriver()),
517:             new ErrorHandler() {
518:             public void handleThrowable(Throwable t) {
519:             System.out.println("Handling error: ");
520:             t.printStackTrace(System.out);
521:             }
522:             },null));
523:             frame.addWindowListener(new WindowAdapter() {
524:             public void windowClosing(WindowEvent e) {
525:             System.exit(0);
526:             }
527:             });
528:             frame.pack();
529:             GUIUtil.centreOnScreen(frame);
530:             frame.setVisible(true);
531:             }
532:             */
533:
534:        }
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