service/simulator/java/eclipse-plugin/ServiceProviderPlugin/src/oic/simulator/serviceprovider/view/MetaPropertiesView.java

   1 /*
   2  * Copyright 2015 Samsung Electronics All Rights Reserved.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package oic.simulator.serviceprovider.view;
  18
  19 import org.eclipse.jface.dialogs.MessageDialog;
  20 import org.eclipse.jface.viewers.CellEditor;
  21 import org.eclipse.jface.viewers.EditingSupport;
  22 import org.eclipse.jface.viewers.IStructuredContentProvider;
  23 import org.eclipse.jface.viewers.StyledCellLabelProvider;
  24 import org.eclipse.jface.viewers.TableViewer;
  25 import org.eclipse.jface.viewers.TableViewerColumn;
  26 import org.eclipse.jface.viewers.TextCellEditor;
  27 import org.eclipse.jface.viewers.Viewer;
  28 import org.eclipse.jface.viewers.ViewerCell;
  29 import org.eclipse.jface.window.Window;
  30 import org.eclipse.swt.SWT;
  31 import org.eclipse.swt.events.ModifyEvent;
  32 import org.eclipse.swt.events.ModifyListener;
  33 import org.eclipse.swt.events.SelectionAdapter;
  34 import org.eclipse.swt.events.SelectionEvent;
  35 import org.eclipse.swt.layout.GridData;
  36 import org.eclipse.swt.layout.GridLayout;
  37 import org.eclipse.swt.widgets.Button;
  38 import org.eclipse.swt.widgets.Composite;
  39 import org.eclipse.swt.widgets.Display;
  40 import org.eclipse.swt.widgets.Table;
  41 import org.eclipse.swt.widgets.Text;
  42 import org.eclipse.ui.part.ViewPart;
  43
  44 import java.util.HashMap;
  45 import java.util.Iterator;
  46 import java.util.List;
  47 import java.util.Map;
  48 import java.util.Set;
  49
  50 import org.oic.simulator.SimulatorException;
  51
  52 import oic.simulator.serviceprovider.Activator;
  53 import oic.simulator.serviceprovider.listener.ISelectionChangedListener;
  54 import oic.simulator.serviceprovider.manager.ResourceManager;
  55 import oic.simulator.serviceprovider.manager.UiListenerHandler;
  56 import oic.simulator.serviceprovider.model.MetaProperty;
  57 import oic.simulator.serviceprovider.model.Resource;
  58 import oic.simulator.serviceprovider.model.SingleResource;
  59 import oic.simulator.serviceprovider.utils.Constants;
  60 import oic.simulator.serviceprovider.utils.Utility;
  61 import oic.simulator.serviceprovider.view.dialogs.UpdateResourceInterfaceDialog;
  62
  63 /**
  64  * This class manages and shows the meta properties view in the perspective.
  65  */
  66 public class MetaPropertiesView extends ViewPart {
  67
  68     public static final String        VIEW_ID       = "oic.simulator.serviceprovider.view.metaproperties";
  69
  70     private TableViewer               tableViewer;
  71
  72     private final String[]            columnHeaders = { "Property", "Value" };
  73
  74     private final Integer[]           columnWidth   = { 150, 150 };
  75
  76     private ISelectionChangedListener resourceSelectionChangedListener;
  77
  78     private ResourceManager           resourceManagerRef;
  79
  80     private Set<String>               updatedIfSet;
  81
  82     private List<MetaProperty>        properties;
  83
  84     private boolean                   enable_edit;
  85     private Button                    editBtn;
  86     private Button                    cancelBtn;
  87
  88     private Map<String, String>       ifTypes;
  89
  90     public MetaPropertiesView() {
  91
  92         resourceManagerRef = Activator.getDefault().getResourceManager();
  93
  94         resourceSelectionChangedListener = new ISelectionChangedListener() {
  95
  96             @Override
  97             public void onResourceSelectionChange(final Resource resource) {
  98                 Display.getDefault().asyncExec(new Runnable() {
  99
 100                     @Override
 101                     public void run() {
 102                         if (null != tableViewer) {
 103                             properties = getData(resource);
 104                             updateViewer(properties);
 105                         }
 106                         updateEditControls(resource);
 107                     }
 108                 });
 109             }
 110         };
 111     }
 112
 113     @Override
 114     public void createPartControl(final Composite parent) {
 115         parent.setLayout(new GridLayout(2, false));
 116
 117         tableViewer = new TableViewer(parent, SWT.SINGLE | SWT.H_SCROLL
 118                 | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER);
 119
 120         createColumns(tableViewer);
 121
 122         // Make lines and header visible
 123         final Table table = tableViewer.getTable();
 124         GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
 125         gd.horizontalSpan = 2;
 126         table.setLayoutData(gd);
 127         table.setHeaderVisible(true);
 128         table.setLinesVisible(true);
 129
 130         tableViewer.setContentProvider(new PropertycontentProvider());
 131
 132         editBtn = new Button(parent, SWT.PUSH);
 133         editBtn.setText("Edit");
 134         gd = new GridData();
 135         gd.widthHint = 50;
 136         editBtn.setLayoutData(gd);
 137         editBtn.addSelectionListener(new SelectionAdapter() {
 138             @Override
 139             public void widgetSelected(SelectionEvent e) {
 140                 if (editBtn.getText().equals("Edit")) {
 141                     cancelBtn.setEnabled(true);
 142                     editBtn.setText("Save");
 143                     setEnableEdit(true);
 144
 145                     Resource resource = resourceManagerRef
 146                             .getCurrentResourceInSelection();
 147                     if (null != resource) {
 148                         updatedIfSet = resource.getResourceInterfaces();
 149                     }
 150                 } else {
 151                     boolean result = false;
 152                     Resource resourceInSelection = resourceManagerRef
 153                             .getCurrentResourceInSelection();
 154                     if (null != resourceInSelection) {
 155
 156                         // Null Check
 157                         result = resourceManagerRef.isPropertyValueInvalid(
 158                                 resourceInSelection, properties,
 159                                 Constants.RESOURCE_URI);
 160                         if (result) {
 161                             MessageDialog.openError(parent.getShell(),
 162                                     "Invalid Resource URI.",
 163                                     Constants.INVALID_URI_MESSAGE);
 164                             return;
 165                         }
 166
 167                         result = resourceManagerRef.isPropertyValueInvalid(
 168                                 resourceInSelection, properties,
 169                                 Constants.RESOURCE_NAME);
 170                         if (result) {
 171                             MessageDialog.openError(parent.getShell(),
 172                                     "Invalid Input",
 173                                     "Resource Name is invalid.");
 174                             return;
 175                         }
 176
 177                         boolean update = false;
 178                         boolean uriChange = false;
 179                         boolean nameChange = false;
 180                         boolean interfaceChange = false;
 181
 182                         if (resourceManagerRef.isPropValueChanged(
 183                                 resourceInSelection, properties,
 184                                 Constants.RESOURCE_NAME)) {
 185                             update = true;
 186                             nameChange = true;
 187                         }
 188                         if (resourceManagerRef.isPropValueChanged(
 189                                 resourceInSelection, properties,
 190                                 Constants.RESOURCE_URI)) {
 191                             // Check whether the new URI is unique.
 192                             if (!resourceManagerRef.isUriUnique(properties)) {
 193                                 MessageDialog.openError(parent.getShell(),
 194                                         "Resource URI in use",
 195                                         "Resource URI is in use. Please try a different URI.");
 196                                 return;
 197                             }
 198
 199                             if (resourceManagerRef
 200                                     .isResourceStarted(resourceInSelection)) {
 201                                 update = MessageDialog.openQuestion(
 202                                         parent.getShell(), "Save Details",
 203                                         "Resource will be restarted to take the changes."
 204                                                 + " Do you want to continue?");
 205                                 if (!update) {
 206                                     return;
 207                                 }
 208                             }
 209
 210                             update = true;
 211                             uriChange = true;
 212                         }
 213                         // Checking whether any changes made in resource
 214                         // interfaces by
 215                         // comparing the current interface set and updated
 216                         // interface set.
 217                         if (null != updatedIfSet) {
 218                             Set<String> curIfSet = resourceInSelection
 219                                     .getResourceInterfaces();
 220                             if (curIfSet.size() != updatedIfSet.size()) {
 221                                 update = true;
 222                                 interfaceChange = true;
 223                             } else {
 224                                 Iterator<String> itr = updatedIfSet.iterator();
 225                                 while (itr.hasNext()) {
 226                                     if (!curIfSet.contains(itr.next())) {
 227                                         update = true;
 228                                         interfaceChange = true;
 229                                         break;
 230                                     }
 231                                 }
 232                             }
 233                         }
 234                         if (update) {
 235                             try {
 236                                 if (uriChange || nameChange)
 237                                     result = Activator
 238                                             .getDefault()
 239                                             .getResourceManager()
 240                                             .updateResourceProperties(
 241                                                     resourceManagerRef
 242                                                             .getCurrentResourceInSelection(),
 243                                                     properties, uriChange,
 244                                                     nameChange);
 245                                 if (interfaceChange)
 246                                     result = Activator
 247                                             .getDefault()
 248                                             .getResourceManager()
 249                                             .updateResourceInterfaces(
 250                                                     resourceInSelection,
 251                                                     updatedIfSet);
 252
 253                             } catch (SimulatorException ex) {
 254                                 result = false;
 255                             }
 256                             if (!result) {
 257                                 MessageDialog.openInformation(
 258                                         parent.getShell(), "Operation status",
 259                                         "Failed to update the resource properties.");
 260
 261                                 // Reset the old property values.
 262                                 properties = getData(resourceManagerRef
 263                                         .getCurrentResourceInSelection());
 264                                 updateViewer(properties);
 265                             }
 266                         }
 267                     }
 268                     cancelBtn.setEnabled(false);
 269                     editBtn.setText("Edit");
 270                     setEnableEdit(false);
 271                 }
 272             }
 273         });
 274
 275         cancelBtn = new Button(parent, SWT.PUSH);
 276         cancelBtn.setText("Cancel");
 277         cancelBtn.setEnabled(false);
 278         gd = new GridData();
 279         gd.widthHint = 70;
 280         cancelBtn.setLayoutData(gd);
 281         cancelBtn.addSelectionListener(new SelectionAdapter() {
 282             @Override
 283             public void widgetSelected(SelectionEvent e) {
 284                 Resource res = resourceManagerRef
 285                         .getCurrentResourceInSelection();
 286                 if (null != res) {
 287                     properties = getData(res);
 288                 }
 289                 updateViewer(properties);
 290
 291                 cancelBtn.setEnabled(false);
 292                 editBtn.setText("Edit");
 293                 setEnableEdit(false);
 294                 if (null != updatedIfSet)
 295                     updatedIfSet.clear();
 296             }
 297         });
 298
 299         // Get the supported interfaces.
 300         Map<String, String> ifTypesSupported = Utility
 301                 .getResourceInterfaces(SingleResource.class);
 302         if (null != ifTypesSupported && !ifTypesSupported.isEmpty()) {
 303             ifTypes = new HashMap<String, String>();
 304             String key;
 305             for (Map.Entry<String, String> entry : ifTypesSupported.entrySet()) {
 306                 key = entry.getValue() + " (" + entry.getKey() + ")";
 307                 ifTypes.put(key, entry.getKey());
 308             }
 309         }
 310
 311         addManagerListeners();
 312
 313         // Check whether there is any resource selected already
 314         Resource resource = resourceManagerRef.getCurrentResourceInSelection();
 315         properties = getData(resource);
 316         if (null != properties) {
 317             updateViewer(properties);
 318         }
 319         updateEditControls(resource);
 320     }
 321
 322     private void updateEditControls(Object obj) {
 323         if (!editBtn.isDisposed() && !cancelBtn.isDisposed()) {
 324
 325             if (editBtn.getText().equals("Save")) {
 326                 editBtn.setText("Edit");
 327                 setEnableEdit(false);
 328             }
 329
 330             if (null == obj) {
 331                 editBtn.setEnabled(false);
 332             } else {
 333                 editBtn.setEnabled(true);
 334             }
 335             cancelBtn.setEnabled(false);
 336         }
 337     }
 338
 339     private List<MetaProperty> getData(Resource resource) {
 340         if (null != resource) {
 341             List<MetaProperty> metaPropertyList = resourceManagerRef
 342                     .getMetaProperties(resource);
 343             return metaPropertyList;
 344         } else {
 345             return null;
 346         }
 347     }
 348
 349     private void updateViewer(List<MetaProperty> metaPropertyList) {
 350         if (null != tableViewer) {
 351             Table tbl = tableViewer.getTable();
 352             if (tbl.isDisposed()) {
 353                 return;
 354             }
 355             if (null != metaPropertyList) {
 356                 tableViewer.setInput(metaPropertyList.toArray());
 357                 tbl.setLinesVisible(true);
 358             } else {
 359                 tbl.removeAll();
 360                 tbl.setLinesVisible(false);
 361             }
 362         }
 363     }
 364
 365     public void createColumns(final TableViewer tableViewer) {
 366         TableViewerColumn propName = new TableViewerColumn(tableViewer,
 367                 SWT.NONE);
 368         propName.getColumn().setWidth(columnWidth[0]);
 369         propName.getColumn().setText(columnHeaders[0]);
 370         propName.setLabelProvider(new StyledCellLabelProvider() {
 371             @Override
 372             public void update(ViewerCell cell) {
 373                 MetaProperty prop = (MetaProperty) cell.getElement();
 374                 cell.setText(prop.getPropName());
 375                 super.update(cell);
 376             }
 377         });
 378
 379         TableViewerColumn propValue = new TableViewerColumn(tableViewer,
 380                 SWT.NONE);
 381         propValue.getColumn().setWidth(columnWidth[1]);
 382         propValue.getColumn().setText(columnHeaders[1]);
 383         propValue.setLabelProvider(new StyledCellLabelProvider() {
 384             @Override
 385             public void update(ViewerCell cell) {
 386                 MetaProperty prop = (MetaProperty) cell.getElement();
 387                 cell.setText(prop.getPropValue());
 388                 super.update(cell);
 389             }
 390         });
 391         propValue.setEditingSupport(new PropValueEditor(tableViewer));
 392     }
 393
 394     private void addManagerListeners() {
 395         UiListenerHandler.getInstance().addResourceSelectionChangedUIListener(
 396                 resourceSelectionChangedListener);
 397     }
 398
 399     class PropertycontentProvider implements IStructuredContentProvider {
 400
 401         @Override
 402         public void dispose() {
 403         }
 404
 405         @Override
 406         public void inputChanged(Viewer arg0, Object arg1, Object arg2) {
 407         }
 408
 409         @Override
 410         public Object[] getElements(Object element) {
 411             return (Object[]) element;
 412         }
 413     }
 414
 415     @Override
 416     public void dispose() {
 417         // Unregister the listener
 418         if (null != resourceSelectionChangedListener) {
 419             UiListenerHandler.getInstance()
 420                     .removeResourceSelectionChangedUIListener(
 421                             resourceSelectionChangedListener);
 422         }
 423         super.dispose();
 424     }
 425
 426     class PropValueEditor extends EditingSupport {
 427
 428         private final TableViewer viewer;
 429
 430         public PropValueEditor(TableViewer viewer) {
 431             super(viewer);
 432             this.viewer = viewer;
 433         }
 434
 435         @Override
 436         protected boolean canEdit(Object element) {
 437             return true;
 438         }
 439
 440         @Override
 441         protected CellEditor getCellEditor(final Object element) {
 442             if (!getEnableEdit()) {
 443                 return null;
 444             }
 445             // Disabling edit for resource type
 446             String propName = ((MetaProperty) element).getPropName();
 447             if (null != propName && propName.equals(Constants.RESOURCE_TYPE)) {
 448                 return null;
 449             }
 450
 451             CellEditor editor = new TextCellEditor(viewer.getTable());
 452             if (null != propName && propName.equals(Constants.INTERFACE_TYPES)) {
 453                 editor.setStyle(SWT.READ_ONLY);
 454                 final Text txt = (Text) editor.getControl();
 455                 txt.addModifyListener(new ModifyListener() {
 456                     @Override
 457                     public void modifyText(ModifyEvent e) {
 458                         if (null == updatedIfSet) {
 459                             return;
 460                         }
 461                         // Form the result set of interfaces with check-box that
 462                         // will be shown in the dialog for editing.
 463                         Map<String, String> curResInterfaces = new HashMap<String, String>();
 464                         for (Map.Entry<String, String> entry : ifTypes
 465                                 .entrySet()) {
 466                             if (updatedIfSet.contains(entry.getValue())) {
 467                                 curResInterfaces.put(entry.getKey(),
 468                                         entry.getValue());
 469                             }
 470                         }
 471
 472                         // Show the dialog for editing the resource interfaces.
 473                         UpdateResourceInterfaceDialog ad = new UpdateResourceInterfaceDialog(
 474                                 Display.getDefault().getActiveShell(),
 475                                 curResInterfaces, ifTypes);
 476                         if (ad.open() == Window.OK) {
 477                             // Update the local copy of the current resource
 478                             // interfaces to keep the state for save operation.
 479                             updatedIfSet.clear();
 480                             String newPropValue = "";
 481                             for (Map.Entry<String, String> entry : curResInterfaces
 482                                     .entrySet()) {
 483                                 if (!newPropValue.isEmpty()) {
 484                                     newPropValue += ", ";
 485                                 }
 486                                 String value = ifTypes.get(entry.getKey());
 487                                 newPropValue += value;
 488
 489                                 updatedIfSet.add(value);
 490                             }
 491                             // Update the model
 492                             MetaProperty prop = (MetaProperty) element;
 493                             prop.setPropValue(newPropValue);
 494                             // Update the viewer in a separate UI thread.
 495                             Display.getDefault().asyncExec(new Runnable() {
 496                                 @Override
 497                                 public void run() {
 498                                     viewer.refresh(element, true);
 499                                 }
 500                             });
 501                         }
 502                     }
 503                 });
 504             }
 505             return editor;
 506         }
 507
 508         @Override
 509         protected Object getValue(Object element) {
 510             return ((MetaProperty) element).getPropValue();
 511         }
 512
 513         @Override
 514         protected void setValue(Object element, Object value) {
 515             MetaProperty prop = (MetaProperty) element;
 516             if (prop.getPropName().equals(Constants.INTERFACE_TYPES)) {
 517                 return;
 518             }
 519             prop.setPropValue(String.valueOf(value));
 520             viewer.update(element, null);
 521         }
 522     }
 523
 524     private synchronized Boolean getEnableEdit() {
 525         return enable_edit;
 526     }
 527
 528     private synchronized void setEnableEdit(boolean value) {
 529         enable_edit = value;
 530     }
 531
 532     @Override
 533     public void setFocus() {
 534     }
 535 }