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.apache.log4j.Logger;
  17 import org.eclipse.core.runtime.IProgressMonitor;
  18 import org.eclipse.core.runtime.IStatus;
  19 import org.eclipse.core.runtime.Status;
  20 import org.eclipse.core.runtime.jobs.Job;
  21 import org.eclipse.jface.action.GroupMarker;
  22 import org.eclipse.jface.action.MenuManager;
  23 import org.eclipse.jface.viewers.StructuredViewer;
  24 import org.eclipse.jface.viewers.TableViewer;
  25 import org.eclipse.jface.viewers.TableViewerColumn;
  26 import org.eclipse.swt.SWT;
  27 import org.eclipse.swt.events.SelectionAdapter;
  28 import org.eclipse.swt.events.SelectionEvent;
  29 import org.eclipse.swt.layout.FillLayout;
  30 import org.eclipse.swt.widgets.Composite;
  31 import org.eclipse.swt.widgets.Control;
  32 import org.eclipse.swt.widgets.Display;
  33 import org.eclipse.swt.widgets.Menu;
  34 import org.eclipse.swt.widgets.Table;
  35 import org.eclipse.swt.widgets.TableColumn;
  36 import org.eclipse.ui.IMemento;
  37 import org.eclipse.ui.IWorkbenchActionConstants;
  38 import org.eclipse.ui.part.ViewPart;
  39 import org.eclipse.ui.progress.IWorkbenchSiteProgressService;
  40
  41 import eu.etaxonomy.cdm.config.ICdmSource;
  42 import eu.etaxonomy.taxeditor.Messages;
  43 import eu.etaxonomy.taxeditor.datasource.CdmDataSourceRepository;
  44 import eu.etaxonomy.taxeditor.model.ContextListenerAdapter;
  45 import eu.etaxonomy.taxeditor.model.IContextListener;
  46 import eu.etaxonomy.taxeditor.store.CdmStore;
  47
  48 /**
  49  * <p>CdmDataSourceViewPart class.</p>
  50  *
  51  * @author n.hoffmann
  52  * @created 14.04.2009
  53  * @version 1.0
  54  */
  55 public class CdmDataSourceViewPart extends ViewPart{
  56
  57     private static final Logger logger = Logger.getLogger(CdmDataSourceViewPart.class);
  58
  59         private class ContextListener extends ContextListenerAdapter{
  60                 /* (non-Javadoc)
  61                  * @see eu.etaxonomy.taxeditor.model.IContextListener#contextAboutToStop(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
  62                  */
  63                 @Override
  64                 public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {
  65                         monitor.subTask("Refreshing Datasource View"); //$NON-NLS-1$
  66                         viewer.refresh();
  67                 }
  68
  69                 /* (non-Javadoc)
  70                  * @see eu.etaxonomy.taxeditor.model.IContextListener#contextStop(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
  71                  */
  72                 @Override
  73                 public void contextStop(IMemento memento, IProgressMonitor monitor) {
  74                         monitor.subTask("Refreshing Datasource View"); //$NON-NLS-1$
  75                         viewer.refresh();
  76                 }
  77
  78                 /* (non-Javadoc)
  79                  * @see eu.etaxonomy.taxeditor.model.IContextListener#contextStart(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
  80                  */
  81                 @Override
  82                 public void contextStart(IMemento memento, IProgressMonitor monitor) {
  83                         monitor.subTask("Refreshing Datasource View"); //$NON-NLS-1$
  84                         viewer.refresh();
  85                 }
  86         }
  87
  88         private class DataSourceJob extends Job{
  89
  90                 private final List<ICdmSource> cdmSources;
  91
  92                 /**
  93                  * @param name
  94                  */
  95                 public DataSourceJob(String title, List<ICdmSource> cdmSources) {
  96                         super(title);
  97                         this.cdmSources = cdmSources;
  98                 }
  99
 100                 /* (non-Javadoc)
 101                  * @see org.eclipse.core.runtime.jobs.Job#run(org.eclipse.core.runtime.IProgressMonitor)
 102                  */
 103                 @Override
 104                 public IStatus run(final IProgressMonitor monitor) {
 105                         try{
 106                                 logger.debug("Begin of eclipse core runtime Job to Retrieve datasources"); //$NON-NLS-1$
 107                                 monitor.beginTask("Retrieving datasources", cdmSources.size() + 1);                      //$NON-NLS-1$
 108
 109                                 final List<CdmMetaDataAwareDataSourceContainer> containers = new ArrayList<CdmMetaDataAwareDataSourceContainer>();
 110
 111                                 for(ICdmSource cdmSource : cdmSources){
 112                                         containers.add(new CdmMetaDataAwareDataSourceContainer(cdmSource));
 113                                 }
 114
 115                                 Display.getDefault().asyncExec(new Runnable() {
 116
 117                                         @Override
 118                                         public void run() {
 119                                                 viewer.setInput(containers);
 120                                         }
 121                                 });
 122                                 monitor.worked(1);
 123
 124                                 for(final CdmMetaDataAwareDataSourceContainer container : containers){
 125                                         if(logger.isDebugEnabled()) {
 126                         logger.debug("  #" + container.hashCode() + " : next DataSourceContainer");                                              //$NON-NLS-1$ //$NON-NLS-2$
 127                     }
 128                                         container.getMetaDataFromDataSource();
 129                                         if(logger.isDebugEnabled())
 130                      {
 131                         logger.debug("  #" + container.hashCode() + " : metadata retrieved, creating new runnable ...");         //$NON-NLS-1$ //$NON-NLS-2$
 132                     }
 133                                         Display.getDefault().asyncExec(new Runnable() {
 134
 135                                                 @Override
 136                                                 public void run() {
 137                                                         if(logger.isDebugEnabled())
 138                              {
 139                                 logger.debug("  #" + container.hashCode() + " starting sub thread to update ...");       //$NON-NLS-1$ //$NON-NLS-2$
 140                             }
 141                                                         viewer.update(container, null);
 142                                                         if(logger.isDebugEnabled())
 143                              {
 144                                 logger.debug("  #" + container.hashCode() + " end of sub thread to update ...");         //$NON-NLS-1$ //$NON-NLS-2$
 145                             }
 146                                                 }
 147                                         });
 148                                         if(logger.isDebugEnabled())
 149                      {
 150                         logger.debug("  #" + container.hashCode() + " done");    //$NON-NLS-1$ //$NON-NLS-2$
 151                     }
 152                                         monitor.worked(1);
 153                                 }
 154
 155                         }finally{
 156                                 monitor.done();
 157                         }
 158                         return Status.OK_STATUS;
 159                 }
 160         }
 161
 162         /** Constant <code>ID="eu.etaxonomy.taxeditor.store.datasource"{trunked}</code> */
 163         public static String ID = "eu.etaxonomy.taxeditor.view.datasource"; //$NON-NLS-1$
 164
 165         private TableViewer viewer;
 166
 167         private String partNameCache;
 168
 169         private IWorkbenchSiteProgressService service;
 170
 171         private IContextListener contextListener;
 172
 173         private CdmDataSourceViewerComparator comparator;
 174
 175         /**
 176          * <p>Constructor for CdmDataSourceViewPart.</p>
 177          */
 178         public CdmDataSourceViewPart(){
 179         }
 180
 181         /** {@inheritDoc} */
 182         @Override
 183         public void createPartControl(Composite parent) {
 184                 service = (IWorkbenchSiteProgressService) getSite().getAdapter(IWorkbenchSiteProgressService.class);
 185                 contextListener = new ContextListener();
 186                 CdmStore.getContextManager().addContextListener(contextListener);
 187
 188                 // Create top composite
 189                 FillLayout fillLayout = new FillLayout();
 190                 fillLayout.marginWidth = 0;
 191                 fillLayout.marginHeight = 0;
 192                 fillLayout.type = SWT.VERTICAL;
 193                 parent.setLayout(fillLayout);
 194
 195                 viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL
 196                                                                                                 | SWT.V_SCROLL | SWT.FULL_SELECTION);
 197                 getSite().setSelectionProvider(viewer);
 198
 199                 createColumns(viewer);
 200
 201                 viewer.setContentProvider(new CdmDataSourceContentProvider());
 202                 viewer.setLabelProvider(new CdmDataSourceLabelProvider());
 203                 comparator = new CdmDataSourceViewerComparator();
 204                 viewer.setComparator(comparator);
 205
 206
 207                 // register context menu
 208                 MenuManager menuMgr = new MenuManager();
 209                 menuMgr.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
 210                 getSite().registerContextMenu(menuMgr, viewer);
 211
 212                 Control control = viewer.getControl();
 213                 Menu menu = menuMgr.createContextMenu(control);
 214                 control.setMenu(menu);
 215
 216                 refresh();
 217         }
 218
 219
 220         // This will create the columns for the table
 221         private void createColumns(TableViewer viewer) {
 222                 Table table = viewer.getTable();
 223                 String[] titles = {Messages.CdmDataSourceViewPart_12, Messages.CdmDataSourceViewPart_11, Messages.CdmDataSourceViewPart_10, Messages.CdmDataSourceViewPart_9, Messages.CdmDataSourceViewPart_8, Messages.CdmDataSourceViewPart_7, Messages.CdmDataSourceViewPart_6, Messages.CdmDataSourceViewPart_5, Messages.CdmDataSourceViewPart_4, Messages.CdmDataSourceViewPart_3, Messages.CdmDataSourceViewPart_2};
 224                 int[] bounds = { 24, 200, 100, 50 , 80, 120, 50, 100, 100, 50, 300};
 225
 226                 for (int i = 0; i < titles.length; i++) {
 227                         TableViewerColumn column = new TableViewerColumn(viewer, SWT.NONE);
 228                         column.getColumn().setText(titles[i]);
 229                         column.getColumn().setWidth(bounds[i]);
 230                         column.getColumn().setResizable(true);
 231                         column.getColumn().setMoveable(true);
 232                         column.getColumn().addSelectionListener(getSelectionAdapter(column.getColumn(), i));
 233                         if(i == 1){
 234                                 table.setSortColumn(column.getColumn());
 235                         }
 236                 }
 237                 table.setHeaderVisible(true);
 238                 table.setLinesVisible(true);
 239                 table.setSortDirection(SWT.UP);
 240
 241         }
 242
 243         /**
 244          * <p>refresh</p>
 245          */
 246         public void refresh(){
 247                 getService().schedule(new DataSourceJob(Messages.CdmDataSourceViewPart_1, CdmDataSourceRepository.getAll()), Job.LONG);
 248         }
 249
 250         /** {@inheritDoc} */
 251         @Override
 252         public void dispose() {
 253                 CdmStore.getContextManager().removeContextListener(contextListener);
 254                 super.dispose();
 255         }
 256
 257         /** {@inheritDoc} */
 258         @Override
 259         public void setFocus() {
 260                 viewer.getControl().setFocus();
 261         }
 262
 263
 264         /* (non-Javadoc)
 265          * @see org.eclipse.ui.part.WorkbenchPart#showBusy(boolean)
 266          */
 267         /** {@inheritDoc} */
 268         @Override
 269         public void showBusy(boolean busy) {
 270                 super.showBusy(busy);
 271 //              viewer.getTable().setEnabled(!busy);
 272                 if(busy){
 273                         partNameCache = getPartName();
 274                         setPartName(Messages.CdmDataSourceViewPart_1);
 275                 }else{
 276                         if(partNameCache != null){
 277                                 setPartName(partNameCache);
 278                         }
 279                 }
 280         }
 281
 282         /**
 283          * <p>Getter for the field <code>viewer</code>.</p>
 284          *
 285          * @return a {@link org.eclipse.jface.viewers.StructuredViewer} object.
 286          */
 287         public StructuredViewer getViewer() {
 288                 return viewer;
 289         }
 290
 291         /**
 292          * <p>Getter for the field <code>service</code>.</p>
 293          *
 294          * @return the service
 295          */
 296         public IWorkbenchSiteProgressService getService() {
 297                 return service;
 298         }
 299
 300         private SelectionAdapter getSelectionAdapter(final TableColumn column,
 301                         final int index) {
 302                 SelectionAdapter selectionAdapter = new SelectionAdapter() {
 303                         @Override
 304                         public void widgetSelected(SelectionEvent e) {
 305                                 comparator.setColumn(index);
 306                                 int dir = viewer.getTable().getSortDirection();
 307                                 if (viewer.getTable().getSortColumn() == column) {
 308                                         dir = dir == SWT.UP ? SWT.DOWN : SWT.UP;
 309                                 } else {
 310                                         dir = SWT.DOWN;
 311                                 }
 312                                 viewer.getTable().setSortDirection(dir);
 313                                 viewer.getTable().setSortColumn(column);
 314                                 viewer.refresh();
 315                         }
 316                 };
 317                 return selectionAdapter;
 318         }
 319
 320 }