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