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

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.view.datasource;
  11
  12 import java.util.ArrayList;
  13 import java.util.List;
  14
  15 import org.apache.log4j.Logger;
  16 import org.eclipse.core.runtime.IProgressMonitor;
  17 import org.eclipse.core.runtime.IStatus;
  18 import org.eclipse.core.runtime.Status;
  19 import org.eclipse.core.runtime.jobs.Job;
  20 import org.eclipse.jface.action.GroupMarker;
  21 import org.eclipse.jface.action.MenuManager;
  22 import org.eclipse.jface.viewers.StructuredViewer;
  23 import org.eclipse.jface.viewers.TableViewer;
  24 import org.eclipse.jface.viewers.TableViewerColumn;
  25 import org.eclipse.swt.SWT;
  26 import org.eclipse.swt.events.SelectionAdapter;
  27 import org.eclipse.swt.events.SelectionEvent;
  28 import org.eclipse.swt.layout.FillLayout;
  29 import org.eclipse.swt.widgets.Composite;
  30 import org.eclipse.swt.widgets.Control;
  31 import org.eclipse.swt.widgets.Display;
  32 import org.eclipse.swt.widgets.Menu;
  33 import org.eclipse.swt.widgets.Table;
  34 import org.eclipse.swt.widgets.TableColumn;
  35 import org.eclipse.ui.IMemento;
  36 import org.eclipse.ui.IWorkbenchActionConstants;
  37 import org.eclipse.ui.part.ViewPart;
  38 import org.eclipse.ui.progress.IWorkbenchSiteProgressService;
  39
  40 import eu.etaxonomy.cdm.config.ICdmSource;
  41 import eu.etaxonomy.taxeditor.datasource.CdmDataSourceRepository;
  42 import eu.etaxonomy.taxeditor.l10n.Messages;
  43 import eu.etaxonomy.taxeditor.model.ContextListenerAdapter;
  44 import eu.etaxonomy.taxeditor.model.IContextListener;
  45 import eu.etaxonomy.taxeditor.store.CdmStore;
  46
  47 /**
  48  * <p>CdmDataSourceViewPart class.</p>
  49  *
  50  * @author n.hoffmann
  51  * @created 14.04.2009
  52  */
  53 public class CdmDataSourceViewPart extends ViewPart{
  54
  55     private static final Logger logger = Logger.getLogger(CdmDataSourceViewPart.class);
  56
  57         private class ContextListener extends ContextListenerAdapter{
  58                 @Override
  59                 public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {
  60                         monitor.subTask("Refreshing Datasource View"); //$NON-NLS-1$
  61                         viewer.refresh();
  62                 }
  63
  64                 @Override
  65                 public void contextStop(IMemento memento, IProgressMonitor monitor) {
  66                         monitor.subTask("Refreshing Datasource View"); //$NON-NLS-1$
  67                         viewer.refresh();
  68                 }
  69
  70                 @Override
  71                 public void contextStart(IMemento memento, IProgressMonitor monitor) {
  72                         monitor.subTask("Refreshing Datasource View"); //$NON-NLS-1$
  73                         viewer.refresh();
  74                 }
  75         }
  76
  77         private class DataSourceJob extends Job{
  78
  79                 private final List<ICdmSource> cdmSources;
  80
  81                 /**
  82                  * @param name
  83                  */
  84                 public DataSourceJob(String title, List<ICdmSource> cdmSources) {
  85                         super(title);
  86                         this.cdmSources = cdmSources;
  87                 }
  88
  89                 @Override
  90                 public IStatus run(final IProgressMonitor monitor) {
  91                         try{
  92                                 logger.debug("Begin of eclipse core runtime Job to Retrieve datasources"); //$NON-NLS-1$
  93                                 monitor.beginTask("Retrieving datasources", cdmSources.size() + 1);                      //$NON-NLS-1$
  94
  95                                 final List<CdmMetaDataAwareDataSourceContainer> containers = new ArrayList<CdmMetaDataAwareDataSourceContainer>();
  96
  97                                 for(ICdmSource cdmSource : cdmSources){
  98                                         containers.add(new CdmMetaDataAwareDataSourceContainer(cdmSource));
  99                                 }
 100
 101                                 Display.getDefault().asyncExec(new Runnable() {
 102
 103                                         @Override
 104                                         public void run() {
 105                                                 viewer.setInput(containers);
 106                                         }
 107                                 });
 108                                 monitor.worked(1);
 109
 110                                 for(final CdmMetaDataAwareDataSourceContainer container : containers){
 111                                         if(logger.isDebugEnabled()) {
 112                         logger.debug("  #" + container.hashCode() + " : next DataSourceContainer");                                              //$NON-NLS-1$ //$NON-NLS-2$
 113                     }
 114                                         container.getMetaDataFromDataSource();
 115                                         if(logger.isDebugEnabled())
 116                      {
 117                         logger.debug("  #" + container.hashCode() + " : metadata retrieved, creating new runnable ...");         //$NON-NLS-1$ //$NON-NLS-2$
 118                     }
 119                                         Display.getDefault().asyncExec(new Runnable() {
 120
 121                                                 @Override
 122                                                 public void run() {
 123                                                         if(logger.isDebugEnabled())
 124                              {
 125                                 logger.debug("  #" + container.hashCode() + " starting sub thread to update ...");       //$NON-NLS-1$ //$NON-NLS-2$
 126                             }
 127                                                         viewer.update(container, null);
 128                                                         if(logger.isDebugEnabled())
 129                              {
 130                                 logger.debug("  #" + container.hashCode() + " end of sub thread to update ...");         //$NON-NLS-1$ //$NON-NLS-2$
 131                             }
 132                                                 }
 133                                         });
 134                                         if(logger.isDebugEnabled())
 135                      {
 136                         logger.debug("  #" + container.hashCode() + " done");    //$NON-NLS-1$ //$NON-NLS-2$
 137                     }
 138                                         monitor.worked(1);
 139                                 }
 140
 141                         }finally{
 142                                 monitor.done();
 143                         }
 144                         return Status.OK_STATUS;
 145                 }
 146         }
 147
 148         /** Constant <code>ID="eu.etaxonomy.taxeditor.store.datasource"{trunked}</code> */
 149         public static String ID = "eu.etaxonomy.taxeditor.view.datasource"; //$NON-NLS-1$
 150
 151         private TableViewer viewer;
 152
 153         private String partNameCache;
 154
 155         private IWorkbenchSiteProgressService service;
 156
 157         private IContextListener contextListener;
 158
 159         private CdmDataSourceViewerComparator comparator;
 160
 161         /**
 162          * <p>Constructor for CdmDataSourceViewPart.</p>
 163          */
 164         public CdmDataSourceViewPart(){
 165         }
 166
 167         /** {@inheritDoc} */
 168         @Override
 169         public void createPartControl(Composite parent) {
 170                 service = (IWorkbenchSiteProgressService) getSite().getAdapter(IWorkbenchSiteProgressService.class);
 171                 contextListener = new ContextListener();
 172                 CdmStore.getContextManager().addContextListener(contextListener);
 173
 174                 // Create top composite
 175                 FillLayout fillLayout = new FillLayout();
 176                 fillLayout.marginWidth = 0;
 177                 fillLayout.marginHeight = 0;
 178                 fillLayout.type = SWT.VERTICAL;
 179                 parent.setLayout(fillLayout);
 180
 181                 viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL
 182                                                                                                 | SWT.V_SCROLL | SWT.FULL_SELECTION);
 183                 getSite().setSelectionProvider(viewer);
 184
 185                 createColumns(viewer);
 186
 187                 viewer.setContentProvider(new CdmDataSourceContentProvider());
 188                 viewer.setLabelProvider(new CdmDataSourceLabelProvider());
 189                 comparator = new CdmDataSourceViewerComparator();
 190                 viewer.setComparator(comparator);
 191
 192
 193                 // register context menu
 194                 MenuManager menuMgr = new MenuManager();
 195                 menuMgr.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
 196                 getSite().registerContextMenu(menuMgr, viewer);
 197
 198                 Control control = viewer.getControl();
 199                 Menu menu = menuMgr.createContextMenu(control);
 200                 control.setMenu(menu);
 201
 202                 refresh();
 203         }
 204
 205
 206         // This will create the columns for the table
 207         private void createColumns(TableViewer viewer) {
 208                 Table table = viewer.getTable();
 209                 String[] titles = {Messages.CdmDataSourceViewPart_12, Messages.CdmDataSourceViewPart_11, Messages.CdmDataSourceViewPart_10, Messages.CdmDataSourceViewPart_9, Messages.CdmDataSourceViewPart_8, Messages.CdmDataSourceViewPart_7, Messages.CdmDataSourceViewPart_5, Messages.CdmDataSourceViewPart_4, Messages.CdmDataSourceViewPart_3, Messages.CdmDataSourceViewPart_2};
 210                 int[] bounds = { 24, 200, 100, 50 , 80, 120, 100, 100, 50, 300};
 211
 212                 for (int i = 0; i < titles.length; i++) {
 213                         TableViewerColumn column = new TableViewerColumn(viewer, SWT.NONE);
 214                         column.getColumn().setText(titles[i]);
 215                         column.getColumn().setWidth(bounds[i]);
 216                         column.getColumn().setResizable(true);
 217                         column.getColumn().setMoveable(true);
 218                         column.getColumn().addSelectionListener(getSelectionAdapter(column.getColumn(), i));
 219                         if(i == 1){
 220                                 table.setSortColumn(column.getColumn());
 221                         }
 222                 }
 223                 table.setHeaderVisible(true);
 224                 table.setLinesVisible(true);
 225                 table.setSortDirection(SWT.UP);
 226
 227         }
 228
 229         /**
 230          * <p>refresh</p>
 231          */
 232         public void refresh(){
 233                 getService().schedule(new DataSourceJob(Messages.CdmDataSourceViewPart_1, CdmDataSourceRepository.getAll()), Job.LONG);
 234         }
 235
 236         /** {@inheritDoc} */
 237         @Override
 238         public void dispose() {
 239                 CdmStore.getContextManager().removeContextListener(contextListener);
 240                 super.dispose();
 241         }
 242
 243         /** {@inheritDoc} */
 244         @Override
 245         public void setFocus() {
 246                 viewer.getControl().setFocus();
 247         }
 248
 249         /** {@inheritDoc} */
 250         @Override
 251         public void showBusy(boolean busy) {
 252                 super.showBusy(busy);
 253 //              viewer.getTable().setEnabled(!busy);
 254                 if(busy){
 255                         partNameCache = getPartName();
 256                         setPartName(Messages.CdmDataSourceViewPart_1);
 257                 }else{
 258                         if(partNameCache != null){
 259                                 setPartName(partNameCache);
 260                         }
 261                 }
 262         }
 263
 264         /**
 265          * <p>Getter for the field <code>viewer</code>.</p>
 266          *
 267          * @return a {@link org.eclipse.jface.viewers.StructuredViewer} object.
 268          */
 269         public StructuredViewer getViewer() {
 270                 return viewer;
 271         }
 272
 273         /**
 274          * <p>Getter for the field <code>service</code>.</p>
 275          *
 276          * @return the service
 277          */
 278         public IWorkbenchSiteProgressService getService() {
 279                 return service;
 280         }
 281
 282         private SelectionAdapter getSelectionAdapter(final TableColumn column,
 283                         final int index) {
 284                 SelectionAdapter selectionAdapter = new SelectionAdapter() {
 285                         @Override
 286                         public void widgetSelected(SelectionEvent e) {
 287                                 comparator.setColumn(index);
 288                                 int dir = viewer.getTable().getSortDirection();
 289                                 if (viewer.getTable().getSortColumn() == column) {
 290                                         dir = dir == SWT.UP ? SWT.DOWN : SWT.UP;
 291                                 } else {
 292                                         dir = SWT.DOWN;
 293                                 }
 294                                 viewer.getTable().setSortDirection(dir);
 295                                 viewer.getTable().setSortColumn(column);
 296                                 viewer.refresh();
 297                         }
 298                 };
 299                 return selectionAdapter;
 300         }
 301
 302 }