archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/view/driver/DeleteDriverAction.java

   1 package com.quantum.view.driver;
   2
   3 import java.util.List;
   4
   5 import com.quantum.ImageStore;
   6 import com.quantum.Messages;
   7 import com.quantum.model.Bookmark;
   8 import com.quantum.model.BookmarkCollection;
   9 import com.quantum.model.JDBCDriver;
  10
  11 import org.eclipse.jface.dialogs.MessageDialog;
  12 import org.eclipse.jface.viewers.ISelectionProvider;
  13 import org.eclipse.jface.viewers.IStructuredSelection;
  14 import org.eclipse.swt.widgets.Shell;
  15 import org.eclipse.ui.IViewPart;
  16 import org.eclipse.ui.actions.SelectionListenerAction;
  17
  18 /**
  19  * This action deletes JDBC Drivers from the JDBC Driver collection.
  20  *
  21  * @author BC Holmes
  22  */
  23 public class DeleteDriverAction extends SelectionListenerAction {
  24
  25         private final IViewPart viewPart;
  26
  27         /**
  28          * @param text
  29          */
  30         protected DeleteDriverAction(IViewPart viewPart, ISelectionProvider selectionProvider) {
  31                 super(Messages.getString(DeleteDriverAction.class, "text"));
  32                 this.viewPart = viewPart;
  33                 selectionProvider.addSelectionChangedListener(this);
  34                 setImageDescriptor(ImageStore.getImageDescriptor(ImageStore.DELETE));
  35         }
  36
  37         public void run() {
  38                 JDBCDriver driver = getJDBCDriver();
  39
  40                 if (driver != null) {
  41                         Bookmark[] bookmarks = BookmarkCollection.getInstance().getBookmarks();
  42                         boolean found = false;
  43                         for (int i = 0, length = bookmarks == null ? 0 : bookmarks.length;
  44                                         driver != null && !found && i < length; i++) {
  45                                 found |= driver.equals(bookmarks[i].getJDBCDriver());
  46                         }
  47
  48                         if (found) {
  49                                 MessageDialog.openWarning(getShell(),
  50                                                 Messages.getString(DeleteDriverAction.class, "failed"),
  51                                                 Messages.getString(DeleteDriverAction.class, "inUse"));
  52                         } else {
  53                                 if (MessageDialog.openConfirm(getShell(),
  54                                         Messages.getString(DeleteDriverAction.class, "confirm"),
  55                                         Messages.getString(DeleteDriverAction.class, "confirmText",
  56                                                         new Object[] { driver.getName() }))) {
  57
  58                                         if (!BookmarkCollection.getInstance().removeDriver(driver)) {
  59                                                 MessageDialog.openWarning(getShell(),
  60                                                                 Messages.getString(DeleteDriverAction.class, "failed"),
  61                                                                 Messages.getString(DeleteDriverAction.class, "cant"));
  62                                         }
  63                                 }
  64                         }
  65                 }
  66         }
  67
  68         /**
  69          * @return
  70          */
  71         private Shell getShell() {
  72                 return this.viewPart.getViewSite().getShell();
  73         }
  74
  75         /**
  76          * @return
  77          */
  78         private JDBCDriver getJDBCDriver() {
  79                 List list = getSelectedNonResources();
  80                 return list == null || list.size() == 0 ? null : (JDBCDriver) list.get(0);
  81         }
  82
  83         protected boolean updateSelection(IStructuredSelection selection) {
  84                 return selection != null && !selection.isEmpty();
  85         }
  86 }