eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/datasource/CdmDataSourceViewPart.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 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
  11 package eu.etaxonomy.taxeditor.view.datasource;
  12
  13 import java.util.ArrayList;
  14 import java.util.List;
  15
  16 import org.eclipse.core.commands.Command;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.core.commands.NotEnabledException;
  19 import org.eclipse.core.commands.NotHandledException;
  20 import org.eclipse.core.commands.common.NotDefinedException;
  21 import org.eclipse.core.runtime.IProgressMonitor;
  22 import org.eclipse.core.runtime.IStatus;
  23 import org.eclipse.core.runtime.Status;
  24 import org.eclipse.core.runtime.jobs.Job;
  25 import org.eclipse.jface.action.GroupMarker;
  26 import org.eclipse.jface.action.MenuManager;
  27 import org.eclipse.jface.viewers.DoubleClickEvent;
  28 import org.eclipse.jface.viewers.IDoubleClickListener;
  29 import org.eclipse.jface.viewers.StructuredSelection;
  30 import org.eclipse.jface.viewers.StructuredViewer;
  31 import org.eclipse.jface.viewers.TableViewer;
  32 import org.eclipse.jface.viewers.TableViewerColumn;
  33 import org.eclipse.swt.SWT;
  34 import org.eclipse.swt.events.SelectionAdapter;
  35 import org.eclipse.swt.events.SelectionEvent;
  36 import org.eclipse.swt.layout.FillLayout;
  37 import org.eclipse.swt.widgets.Composite;
  38 import org.eclipse.swt.widgets.Control;
  39 import org.eclipse.swt.widgets.Display;
  40 import org.eclipse.swt.widgets.Menu;
  41 import org.eclipse.swt.widgets.Table;
  42 import org.eclipse.swt.widgets.TableColumn;
  43 import org.eclipse.ui.IMemento;
  44 import org.eclipse.ui.IWorkbenchActionConstants;
  45 import org.eclipse.ui.commands.ICommandService;
  46 import org.eclipse.ui.handlers.IHandlerService;
  47 import org.eclipse.ui.part.ViewPart;
  48 import org.eclipse.ui.progress.IWorkbenchSiteProgressService;
  49
  50 import eu.etaxonomy.cdm.database.ICdmDataSource;
  51 import eu.etaxonomy.taxeditor.datasource.CdmDataSourceRepository;
  52 import eu.etaxonomy.taxeditor.model.ContextListenerAdapter;
  53 import eu.etaxonomy.taxeditor.model.IContextListener;
  54 import eu.etaxonomy.taxeditor.store.CdmStore;
  55 import eu.etaxonomy.taxeditor.store.StoreUtil;
  56
  57 /**
  58  * <p>CdmDataSourceViewPart class.</p>
  59  *
  60  * @author n.hoffmann
  61  * @created 14.04.2009
  62  * @version 1.0
  63  */
  64 public class CdmDataSourceViewPart extends ViewPart{
  65
  66         private class ContextListener extends ContextListenerAdapter{
  67                 /* (non-Javadoc)
  68                  * @see eu.etaxonomy.taxeditor.model.IContextListener#contextAboutToStop(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
  69                  */
  70                 @Override
  71                 public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {
  72                         monitor.subTask("Refreshing Datasource View");
  73                         viewer.refresh();
  74                 }
  75
  76                 /* (non-Javadoc)
  77                  * @see eu.etaxonomy.taxeditor.model.IContextListener#contextStop(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
  78                  */
  79                 @Override
  80                 public void contextStop(IMemento memento, IProgressMonitor monitor) {
  81                         monitor.subTask("Refreshing Datasource View");
  82                         viewer.refresh();
  83                 }
  84
  85                 /* (non-Javadoc)
  86                  * @see eu.etaxonomy.taxeditor.model.IContextListener#contextStart(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
  87                  */
  88                 @Override
  89                 public void contextStart(IMemento memento, IProgressMonitor monitor) {
  90                         monitor.subTask("Refreshing Datasource View");
  91                         viewer.refresh();
  92                 }
  93         }
  94
  95         private class DataSourceJob extends Job{
  96
  97                 private List<ICdmDataSource> dataSources;
  98
  99                 /**
 100                  * @param name
 101                  */
 102                 public DataSourceJob(String title, List<ICdmDataSource> dataSources) {
 103                         super(title);
 104                         this.dataSources = dataSources;
 105                 }
 106
 107                 /* (non-Javadoc)
 108                  * @see org.eclipse.core.runtime.jobs.Job#run(org.eclipse.core.runtime.IProgressMonitor)
 109                  */
 110                 @Override
 111                 public IStatus run(final IProgressMonitor monitor) {
 112                         try{
 113                                 monitor.beginTask("Retrieving datasources", dataSources.size());
 114
 115                                 List<ICdmDataSource> dataSources = CdmDataSourceRepository.getAll();
 116
 117                                 final List<CdmMetaDataAwareDataSourceContainer> containers = new ArrayList<CdmMetaDataAwareDataSourceContainer>();
 118
 119                                 for(ICdmDataSource dataSource : dataSources){
 120                                         containers.add(new CdmMetaDataAwareDataSourceContainer(dataSource, CdmDataSourceViewPart.this));
 121                                         monitor.worked(1);
 122                                 }
 123
 124                                 Display.getDefault().asyncExec(new Runnable() {
 125
 126                                         @Override
 127                                         public void run() {
 128                                                 viewer.setInput(containers);
 129                                         }
 130                                 });
 131 //                              viewer.setInput(containers);
 132
 133                         }finally{
 134                                 monitor.done();
 135                         }
 136                         return Status.OK_STATUS;
 137                 }
 138         }
 139
 140         /** Constant <code>ID="eu.etaxonomy.taxeditor.store.datasource"{trunked}</code> */
 141         public static String ID = "eu.etaxonomy.taxeditor.view.datasource";
 142
 143         private TableViewer viewer;
 144
 145         private String partNameCache;
 146
 147         private IWorkbenchSiteProgressService service;
 148
 149         private IContextListener contextListener;
 150
 151         private CdmDataSourceViewerComparator comparator;
 152
 153         /**
 154          * <p>Constructor for CdmDataSourceViewPart.</p>
 155          */
 156         public CdmDataSourceViewPart(){
 157         }
 158
 159         /** {@inheritDoc} */
 160         @Override
 161         public void createPartControl(Composite parent) {
 162                 service = (IWorkbenchSiteProgressService) getSite().getAdapter(IWorkbenchSiteProgressService.class);
 163                 contextListener = new ContextListener();
 164                 CdmStore.getContextManager().addContextListener(contextListener);
 165
 166                 // Create top composite
 167                 FillLayout fillLayout = new FillLayout();
 168                 fillLayout.marginWidth = 0;
 169                 fillLayout.marginHeight = 0;
 170                 fillLayout.type = SWT.VERTICAL;
 171                 parent.setLayout(fillLayout);
 172
 173                 viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL
 174                                                                                                 | SWT.V_SCROLL | SWT.FULL_SELECTION);
 175                 getSite().setSelectionProvider(viewer);
 176
 177                 createColumns(viewer);
 178
 179                 viewer.setContentProvider(new CdmDataSourceContentProvider());
 180                 viewer.setLabelProvider(new CdmDataSourceLabelProvider());
 181                 comparator = new CdmDataSourceViewerComparator();
 182                 viewer.setComparator(comparator);
 183
 184
 185                 // register context menu
 186                 MenuManager menuMgr = new MenuManager();
 187                 menuMgr.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
 188                 getSite().registerContextMenu(menuMgr, viewer);
 189
 190                 Control control = viewer.getControl();
 191                 Menu menu = menuMgr.createContextMenu(control);
 192                 control.setMenu(menu);
 193
 194                 // connect on doubleclick
 195                 viewer.addDoubleClickListener(new IDoubleClickListener() {
 196
 197                         public void doubleClick(DoubleClickEvent event) {
 198                                 if (event.getSelection() instanceof StructuredSelection) {
 199
 200                                         Object element = ((StructuredSelection) event
 201                                                         .getSelection()).getFirstElement();
 202                                         if (element instanceof CdmMetaDataAwareDataSourceContainer) {
 203                                                 String commandId = "eu.etaxonomy.taxeditor.store.datasource.change";
 204
 205                                                 ICommandService commandService = (ICommandService)getSite().getService(ICommandService.class);
 206
 207                                                 Command command = commandService.getCommand(commandId);
 208                                                 if(command.isEnabled()) {
 209
 210                                                         IHandlerService handlerService = (IHandlerService) StoreUtil.getService(IHandlerService.class);
 211
 212                                                         try {
 213                                                                 handlerService.executeCommand(commandId, null);
 214                                                         } catch (ExecutionException e) {
 215                                                                 StoreUtil.error(this.getClass(), e);
 216                                                         } catch (NotDefinedException e) {
 217                                                                 StoreUtil.error(this.getClass(), e);
 218                                                         } catch (NotEnabledException e) {
 219                                                                 StoreUtil.error(this.getClass(), e);
 220                                                         } catch (NotHandledException e) {
 221                                                                 StoreUtil.error(this.getClass(), e);
 222                                                         }
 223                                                 }
 224                                         }
 225                                 }
 226                         }
 227                 });
 228
 229                 refresh();
 230         }
 231
 232
 233         // This will create the columns for the table
 234         private void createColumns(TableViewer viewer) {
 235                 Table table = viewer.getTable();
 236                 String[] titles = {"Connected", "Name", "Server", "Type", "Database", "Nomenclatural Code", "Up", "Created", "CDM Version", "Compatible", "Notes"};
 237                 int[] bounds = { 24, 200, 100, 100 , 200, 120, 50, 100, 100, 50, 300};
 238
 239                 for (int i = 0; i < titles.length; i++) {
 240                         TableViewerColumn column = new TableViewerColumn(viewer, SWT.NONE);
 241                         column.getColumn().setText(titles[i]);
 242                         column.getColumn().setWidth(bounds[i]);
 243                         column.getColumn().setResizable(true);
 244                         column.getColumn().setMoveable(true);
 245                         column.getColumn().addSelectionListener(getSelectionAdapter(column.getColumn(), i));
 246                         if(i == 1){
 247                                 table.setSortColumn(column.getColumn());
 248                         }
 249                 }
 250                 table.setHeaderVisible(true);
 251                 table.setLinesVisible(true);
 252                 table.setSortDirection(SWT.UP);
 253
 254         }
 255
 256         /**
 257          * <p>refresh</p>
 258          */
 259         public void refresh(){
 260                 getService().schedule(new DataSourceJob("Loading datasources", CdmDataSourceRepository.getAll()), Job.SHORT);
 261         }
 262
 263         /** {@inheritDoc} */
 264         @Override
 265         public void dispose() {
 266                 CdmStore.getContextManager().removeContextListener(contextListener);
 267                 super.dispose();
 268         }
 269
 270         /** {@inheritDoc} */
 271         @Override
 272         public void setFocus() {
 273                 viewer.getControl().setFocus();
 274         }
 275
 276
 277         /* (non-Javadoc)
 278          * @see org.eclipse.ui.part.WorkbenchPart#showBusy(boolean)
 279          */
 280         /** {@inheritDoc} */
 281         @Override
 282         public void showBusy(boolean busy) {
 283                 super.showBusy(busy);
 284 //              viewer.getTable().setEnabled(!busy);
 285                 if(busy){
 286                         partNameCache = getPartName();
 287                         setPartName("Loading datasources");
 288                 }else{
 289                         if(partNameCache != null){
 290                                 setPartName(partNameCache);
 291                         }
 292                 }
 293         }
 294
 295         /**
 296          * <p>Getter for the field <code>viewer</code>.</p>
 297          *
 298          * @return a {@link org.eclipse.jface.viewers.StructuredViewer} object.
 299          */
 300         public StructuredViewer getViewer() {
 301                 return viewer;
 302         }
 303
 304         /**
 305          * <p>Getter for the field <code>service</code>.</p>
 306          *
 307          * @return the service
 308          */
 309         public IWorkbenchSiteProgressService getService() {
 310                 return service;
 311         }
 312
 313         private SelectionAdapter getSelectionAdapter(final TableColumn column,
 314                         final int index) {
 315                 SelectionAdapter selectionAdapter = new SelectionAdapter() {
 316                         @Override
 317                         public void widgetSelected(SelectionEvent e) {
 318                                 comparator.setColumn(index);
 319                                 int dir = viewer.getTable().getSortDirection();
 320                                 if (viewer.getTable().getSortColumn() == column) {
 321                                         dir = dir == SWT.UP ? SWT.DOWN : SWT.UP;
 322                                 } else {
 323                                         dir = SWT.DOWN;
 324                                 }
 325                                 viewer.getTable().setSortDirection(dir);
 326                                 viewer.getTable().setSortColumn(column);
 327                                 viewer.refresh();
 328                         }
 329                 };
 330                 return selectionAdapter;
 331         }
 332
 333 }