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