org.simantics.district.network.ui/src/org/simantics/district/network/ui/DistrictDiagramViewer.java

   1 package org.simantics.district.network.ui;
   2
   3 import java.awt.Color;
   4 import java.awt.geom.AffineTransform;
   5 import java.util.Collections;
   6 import java.util.Map;
   7 import java.util.Objects;
   8 import java.util.concurrent.TimeUnit;
   9 import java.util.function.Consumer;
  10 import java.util.function.Supplier;
  11
  12 import org.eclipse.e4.core.contexts.IEclipseContext;
  13 import org.eclipse.e4.core.services.events.IEventBroker;
  14 import org.eclipse.ui.PlatformUI;
  15 import org.simantics.datatypes.literal.RGB;
  16 import org.simantics.db.ReadGraph;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.common.request.PossibleIndexRoot;
  19 import org.simantics.db.common.request.UnaryRead;
  20 import org.simantics.db.exception.DatabaseException;
  21 import org.simantics.db.procedure.Listener;
  22 import org.simantics.diagram.ui.DiagramModelHints;
  23 import org.simantics.district.network.DistrictNetworkUtil;
  24 import org.simantics.district.network.ontology.DistrictNetworkResource;
  25 import org.simantics.district.network.ui.internal.Activator;
  26 import org.simantics.district.network.ui.nodes.DistrictRenderingPreparationNode;
  27 import org.simantics.district.network.ui.nodes.DistrictSelectionNode;
  28 import org.simantics.district.network.ui.participants.DNPointerInteractor;
  29 import org.simantics.district.network.ui.participants.DistrictFinderVisualisationParticipant;
  30 import org.simantics.district.network.ui.participants.DynamicVisualisationContributionsParticipant;
  31 import org.simantics.district.network.ui.participants.MapRulerPainter;
  32 import org.simantics.district.network.visualisations.DynamicVisualisations;
  33 import org.simantics.district.network.visualisations.model.ColorBarOptions;
  34 import org.simantics.district.network.visualisations.model.DynamicColorContribution;
  35 import org.simantics.district.network.visualisations.model.DynamicSizeContribution;
  36 import org.simantics.district.network.visualisations.model.SizeBarOptions;
  37 import org.simantics.g2d.canvas.ICanvasContext;
  38 import org.simantics.g2d.canvas.impl.CanvasContext;
  39 import org.simantics.g2d.diagram.DiagramHints;
  40 import org.simantics.g2d.diagram.handler.PickRequest.PickFilter;
  41 import org.simantics.g2d.diagram.participant.DelayedBatchElementPainter;
  42 import org.simantics.g2d.diagram.participant.ElementPainter;
  43 import org.simantics.g2d.diagram.participant.ElementPainterConfiguration;
  44 import org.simantics.g2d.diagram.participant.Selection;
  45 import org.simantics.g2d.diagram.participant.ZOrderHandler;
  46 import org.simantics.g2d.participant.BackgroundPainter;
  47 import org.simantics.g2d.participant.GridPainter;
  48 import org.simantics.g2d.participant.PanZoomRotateHandler;
  49 import org.simantics.g2d.participant.RenderingQualityInteractor;
  50 import org.simantics.g2d.participant.TransformUtil;
  51 import org.simantics.g2d.participant.ZoomToAreaHandler;
  52 import org.simantics.g2d.scenegraph.SceneGraphConstants;
  53 import org.simantics.maps.MapScalingTransform;
  54 import org.simantics.maps.eclipse.MapPainter;
  55 import org.simantics.maps.sg.commands.MapCommands;
  56 import org.simantics.modeling.ui.diagramEditor.DiagramViewer;
  57 import org.simantics.scenegraph.g2d.G2DParentNode;
  58 import org.simantics.scenegraph.g2d.events.command.Command;
  59 import org.simantics.scenegraph.g2d.events.command.CommandEvent;
  60 import org.simantics.scenegraph.g2d.events.command.Commands;
  61 import org.simantics.utils.datastructures.hints.IHintContext;
  62 import org.simantics.utils.datastructures.hints.IHintContext.Key;
  63 import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
  64 import org.slf4j.Logger;
  65 import org.slf4j.LoggerFactory;
  66
  67 public class DistrictDiagramViewer extends DiagramViewer {
  68
  69         private static final Logger LOGGER = LoggerFactory.getLogger(DistrictDiagramViewer.class);
  70
  71     @Override
  72     protected void addDiagramParticipants(ICanvasContext ctx) {
  73         ctx.add(new ZOrderHandler());
  74         ctx.add(new Selection());
  75         ctx.add(new ElementPainter(new ElementPainterConfiguration().selectionNodeClass(DistrictSelectionNode.class)));
  76         ctx.add(new DNPointerInteractor());
  77
  78         AffineTransform tr = new AffineTransform(MapScalingTransform.INSTANCE);
  79         ctx.add(new MapPainter(tr));
  80
  81         DynamicVisualisationContributionsParticipant dynamicVisualisationContributionsParticipant = new DynamicVisualisationContributionsParticipant(tr);
  82         ctx.add(new NetworkDrawingParticipant(dynamicVisualisationContributionsParticipant, tr));
  83         ctx.add(dynamicVisualisationContributionsParticipant);
  84
  85         // Optimize AffineTransform memory allocations during district diagram rendering
  86         G2DParentNode spatialRoot = (G2DParentNode) ctx.getSceneGraph().lookupNode(SceneGraphConstants.SPATIAL_ROOT_NODE_ID);
  87         DistrictRenderingPreparationNode prepNode = new DistrictRenderingPreparationNode();
  88         prepNode.setZIndex(Integer.MIN_VALUE / 2);
  89         spatialRoot.addNode("districtRenderingPrepareNode", prepNode);
  90
  91
  92         IEclipseContext workbenchContext = getWorkbenchContext();
  93         IEventBroker eventBroker = workbenchContext.get(IEventBroker.class);
  94         DistrictFinderVisualisationParticipant districtFinderVisualisationParticipant = new DistrictFinderVisualisationParticipant(eventBroker);
  95         ctx.add(districtFinderVisualisationParticipant);
  96
  97     }
  98
  99     public static IEclipseContext getWorkbenchContext(){
 100         return PlatformUI.getWorkbench().getService(IEclipseContext.class);
 101     }
 102
 103     protected String getPopupId() {
 104         return "#DistrictDiagramPopup";
 105     }
 106
 107     @Override
 108     protected void fillInitialDiagramHints(Resource diagram, IHintContext initialHints) throws DatabaseException {
 109         super.fillInitialDiagramHints(diagram, initialHints);
 110
 111     }
 112
 113     @Override
 114     public void initializeCanvasContext(CanvasContext ctx) {
 115         super.initializeCanvasContext(ctx);
 116         IHintContext h = ctx.getDefaultHintContext();
 117         h.setHint(PanZoomRotateHandler.KEY_ZOOM_IN_LIMIT, 10000.0);
 118         h.setHint(PanZoomRotateHandler.KEY_ZOOM_OUT_LIMIT, 0.01);
 119         h.setHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE, diagramResource);
 120         h.removeHint(DiagramHints.SNAP_ADVISOR);
 121     }
 122
 123     @Override
 124     protected void addPainterParticipants(ICanvasContext ctx) {
 125         ctx.add(new RenderingQualityInteractor());
 126         ctx.add(new DelayedBatchElementPainter(PickFilter.FILTER_MONITORS, 500, TimeUnit.MILLISECONDS));
 127     }
 128
 129     @Override
 130     protected void addGridRulerBackgroundParticipants(CanvasContext ctx) {
 131         ctx.add(new GridPainter());
 132         ctx.add(new MapRulerPainter());
 133         ctx.add(new BackgroundPainter());
 134     }
 135
 136     protected void addViewManipulationParticipants(CanvasContext ctx) {
 137         // Let's replace with our special util
 138         TransformUtil util = ctx.getAtMostOneItemOfClass(TransformUtil.class);
 139         if (util != null)
 140             ctx.remove(util);
 141         ctx.add(new DistrictTransformUtil());
 142         ctx.add(new DistrictPanZoomRotateHandler());
 143         //ctx.add(new MousePanZoomInteractor());
 144         //ctx.add(new MultitouchPanZoomRotateInteractor());
 145         // ctx.add( new OrientationRestorer() );
 146         ctx.add(new ZoomToAreaHandler());
 147     }
 148
 149     @Override
 150     protected void loadPageSettings(ICanvasContext ctx) {
 151         super.loadPageSettings(ctx);
 152         // this might be the wrong place to start such listening but at least
 153         // super.loadPageSettings() does async-db-operations
 154         setupDrawMapEnabled();
 155         setupBackgroundColor();
 156         setupColoringObjects();
 157         setupColorBarOptions();
 158         setupSizingObjects();
 159         setupSizeBarOptions();
 160         setupShowElevationServerBoundingBox();
 161
 162         // add listeners
 163         DistrictDiagramViewerListener[] listeners = Activator.getInstance().getDistrictDiagramViewerListeners();
 164         if (listeners != null) {
 165             for (DistrictDiagramViewerListener listener : listeners) {
 166                 listener.diagramLoaded(getRuntime(), canvasContext);
 167             }
 168         }
 169     }
 170
 171     @Override
 172     public void dispose() {
 173         DistrictDiagramViewerListener[] listeners = Activator.getInstance().getDistrictDiagramViewerListeners();
 174         if (listeners != null) {
 175             Resource runtime = getRuntime();
 176             for (DistrictDiagramViewerListener listener : listeners) {
 177                 listener.diagramDisposed(runtime, canvasContext);
 178             }
 179         }
 180         super.dispose();
 181     }
 182
 183     private void setupDrawMapEnabled() {
 184         sessionContext.getSession().asyncRequest(new DrawMapEnabledRequest(getInputResource()), new DrawMapEnabledListener(
 185                 result -> canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), result ? Commands.MAP_ENABLE : Commands.MAP_DISABLE)),
 186                 () -> DistrictDiagramViewer.this.isDisposed()));
 187     }
 188
 189     private void setupBackgroundColor() {
 190         sessionContext.getSession().asyncRequest(new MapBackgroundColorRequest(getInputResource()), new MapBackgroundColorListener(
 191                 result -> queueBackgroundColorChangeEvent(result),
 192                 () -> DistrictDiagramViewer.this.isDisposed()));
 193     }
 194
 195     private void queueBackgroundColorChangeEvent(RGB.Integer result) {
 196         if (result != null) {
 197             Color backgroundColor = new Color(result.red, result.green, result.blue);
 198             canvasContext.getDefaultHintContext().setHint(MapCommands.KEY_MAP_BACKGROUND_COLOR, backgroundColor);
 199             canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), MapCommands.MAP_BACKGROUND_COLOR_CHANGE));
 200         }
 201     }
 202
 203     private void setupColoringObjects() {
 204         sessionContext.getSession().asyncRequest(new ColoringObjectsRequest(getInputResource()), new ColoringObjectsListener(
 205                 result -> queueColoringObjectsChangeEvent(result),
 206                 () -> DistrictDiagramViewer.this.isDisposed()));
 207     }
 208
 209
 210     private void setupColorBarOptions() {
 211         sessionContext.getSession().asyncRequest(new ColorBarOptionsRequest(getInputResource()), new ColorBarOptionsListener(
 212                 result -> queueColorBarOptionsChangeEvent(result),
 213                 () -> DistrictDiagramViewer.this.isDisposed()));
 214     }
 215
 216     private void setupSizingObjects() {
 217         sessionContext.getSession().asyncRequest(new SizingObjectsRequest(getInputResource()), new SizingObjectsListener(
 218                 result -> queueSizingObjectsChangeEvent(result),
 219                 () -> DistrictDiagramViewer.this.isDisposed()));
 220     }
 221
 222     private void setupSizeBarOptions() {
 223         sessionContext.getSession().asyncRequest(new SizeBarOptionsRequest(getInputResource()), new SizeBarOptionsListener(
 224                 result -> queueSizeBarOptionsChangeEvent(result),
 225                 () -> DistrictDiagramViewer.this.isDisposed()));
 226     }
 227
 228     private void setupShowElevationServerBoundingBox() {
 229         sessionContext.getSession().asyncRequest(new ShowElevationServerRequest(getInputResource()), new ShowElevationServerListener(
 230                 result -> queueShowElevationServerChangeEvent(result),
 231                 () -> DistrictDiagramViewer.this.isDisposed()));
 232     }
 233
 234     public static final Key KEY_MAP_COLOR_BAR_OPTIONS = new KeyOf(ColorBarOptions.class, "colorBarOptions");
 235     public static final Command MAP_COLOR_BAR_OPTIONS_CHANGE = new Command("colorBarOptionsChange");
 236     public static final Key KEY_MAP_SIZE_BAR_OPTIONS = new KeyOf(SizeBarOptions.class, "sizeBarOptions");
 237     public static final Command MAP_SIZE_BAR_OPTIONS_CHANGE = new Command("sizeBarOptionsChange");
 238
 239     public static final Key KEY_MAP_COLORING_OBJECTS = new KeyOf(Map.class, "coloringObjects");
 240     public static final Command MAP_COLORING_OBJECTS_CHANGE = new Command("coloringObjectsChange");
 241
 242     public static final Key KEY_MAP_SIZING_OBJECTS = new KeyOf(Map.class, "sizingObjects");
 243     public static final Command MAP_SIZING_OBJECTS_CHANGE = new Command("sizingObjectsChange");
 244
 245     public static final Key KEY_SHOW_ELEVATION_SERVER = new KeyOf(Boolean.class, "showElevationServer");
 246     public static final Command SHOW_ELEVATION_SERVER_CHANGE = new Command("showElevationServerChange");
 247
 248     private void queueColoringObjectsChangeEvent(Map<String, DynamicColorContribution> result) {
 249         queueEventInternal(KEY_MAP_COLORING_OBJECTS, MAP_COLORING_OBJECTS_CHANGE, result);
 250     }
 251
 252     private void queueColorBarOptionsChangeEvent(ColorBarOptions result) {
 253         queueEventInternal(KEY_MAP_COLOR_BAR_OPTIONS, MAP_COLOR_BAR_OPTIONS_CHANGE, result);
 254     }
 255
 256     private void queueSizingObjectsChangeEvent(Map<String, DynamicSizeContribution> result) {
 257         queueEventInternal(KEY_MAP_SIZING_OBJECTS, MAP_SIZING_OBJECTS_CHANGE, result);
 258     }
 259
 260     private void queueSizeBarOptionsChangeEvent(SizeBarOptions result) {
 261         queueEventInternal(KEY_MAP_SIZE_BAR_OPTIONS, MAP_SIZE_BAR_OPTIONS_CHANGE, result);
 262     }
 263
 264     private void queueShowElevationServerChangeEvent(Boolean result) {
 265         queueEventInternal(KEY_SHOW_ELEVATION_SERVER, SHOW_ELEVATION_SERVER_CHANGE, result);
 266     }
 267
 268     private void queueEventInternal(Key key, Command command, Object result) {
 269         if (result != null && !canvasContext.isDisposed()) {
 270             canvasContext.getThreadAccess().asyncExec(() -> {
 271                 canvasContext.getDefaultHintContext().setHint(key, result);
 272                 canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), command));
 273             });
 274         } else {
 275             LOGGER.info("Result is either null or canvasContext is disposed", String.valueOf(result));
 276         }
 277     }
 278
 279     private static class DrawMapEnabledRequest extends UnaryRead<Resource, Boolean> {
 280
 281         public DrawMapEnabledRequest(Resource diagram) {
 282             super(diagram);
 283         }
 284
 285         @Override
 286         public Boolean perform(ReadGraph graph) throws DatabaseException {
 287             return DistrictNetworkUtil.drawMapEnabled(graph, parameter);
 288         }
 289     }
 290
 291     private static class DrawMapEnabledListener implements Listener<Boolean> {
 292
 293         private static final Logger LOGGER = LoggerFactory.getLogger(DrawMapEnabledListener.class);
 294
 295         private Consumer<Boolean> callback;
 296         private Supplier<Boolean> isDisposed;
 297
 298         private Boolean lastResult;
 299
 300         public DrawMapEnabledListener(Consumer<Boolean> callback, Supplier<Boolean> isDisposed) {
 301             this.callback = callback;
 302             this.isDisposed = isDisposed;
 303         }
 304
 305         @Override
 306         public void execute(Boolean result) {
 307             // Minor optimization
 308             if (!Objects.equals(lastResult, result)) {
 309                 lastResult = result;
 310                 callback.accept(result);
 311             }
 312         }
 313
 314         @Override
 315         public void exception(Throwable t) {
 316             LOGGER.error("Could not listen if draw map is enabled", t);
 317         }
 318
 319         @Override
 320         public boolean isDisposed() {
 321             return isDisposed.get();
 322         }
 323     }
 324
 325     private static class MapBackgroundColorRequest extends UnaryRead<Resource, RGB.Integer> {
 326
 327         public MapBackgroundColorRequest(Resource diagram) {
 328             super(diagram);
 329         }
 330
 331         @Override
 332         public RGB.Integer perform(ReadGraph graph) throws DatabaseException {
 333             return DistrictNetworkUtil.backgroundColor(graph, parameter);
 334         }
 335     }
 336
 337     private static class MapBackgroundColorListener implements Listener<RGB.Integer> {
 338
 339         private static final Logger LOGGER = LoggerFactory.getLogger(MapBackgroundColorListener.class);
 340
 341         private Consumer<RGB.Integer> callback;
 342         private Supplier<Boolean> isDisposed;
 343
 344         private RGB.Integer lastResult;
 345
 346         public MapBackgroundColorListener(Consumer<RGB.Integer> callback, Supplier<Boolean> isDisposed) {
 347             this.callback = callback;
 348             this.isDisposed = isDisposed;
 349         }
 350
 351         @Override
 352         public void execute(RGB.Integer result) {
 353             if (!Objects.equals(lastResult, result)) {
 354                 lastResult = result;
 355                 callback.accept(result);
 356             }
 357         }
 358
 359         @Override
 360         public void exception(Throwable t) {
 361             LOGGER.error("Could not listen map background color", t);
 362         }
 363
 364         @Override
 365         public boolean isDisposed() {
 366             return isDisposed.get();
 367         }
 368     }
 369
 370     private static class ColorBarOptionsRequest extends UnaryRead<Resource, ColorBarOptions> {
 371
 372         public ColorBarOptionsRequest(Resource diagram) {
 373             super(diagram);
 374         }
 375
 376         @Override
 377         public ColorBarOptions perform(ReadGraph graph) throws DatabaseException {
 378             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 379             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 380             if (model != null) {
 381                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 382                 if (vf != null) {
 383                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 384                     if (activeVisualisation != null) {
 385                         return DynamicVisualisations.colorBarOptions(graph, activeVisualisation);
 386                     }
 387                 } else {
 388                     LOGGER.debug("No visualisation folder available for model {}", model);
 389                 }
 390             }
 391             return ColorBarOptions.useDefault();
 392         }
 393     }
 394
 395     private static class ColoringObjectsRequest extends UnaryRead<Resource, Map<String,DynamicColorContribution>> {
 396
 397         public ColoringObjectsRequest(Resource diagram) {
 398             super(diagram);
 399         }
 400
 401         @Override
 402         public Map<String, DynamicColorContribution> perform(ReadGraph graph) throws DatabaseException {
 403             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 404             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 405             if (model != null) {
 406                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 407                 if (vf != null) {
 408                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 409                     if (activeVisualisation != null) {
 410                         return DynamicVisualisations.colorContributions(graph, activeVisualisation);
 411                     }
 412                 } else {
 413                     LOGGER.debug("No visualisation folder available for model {}", model);
 414                 }
 415             }
 416             return Collections.emptyMap();
 417         }
 418     }
 419
 420     private static class ColoringObjectsListener implements Listener<Map<String,DynamicColorContribution>> {
 421
 422         private static final Logger LOGGER = LoggerFactory.getLogger(ColoringObjectsListener.class);
 423
 424         private Consumer<Map<String,DynamicColorContribution>> callback;
 425         private Supplier<Boolean> isDisposed;
 426
 427         //private Map<String, DynamicColorContribution> lastResult
 428
 429         public ColoringObjectsListener(Consumer<Map<String,DynamicColorContribution>> callback, Supplier<Boolean> isDisposed) {
 430             this.callback = callback;
 431             this.isDisposed = isDisposed;
 432         }
 433
 434         @Override
 435         public void execute(Map<String,DynamicColorContribution> result) {
 436             callback.accept(result);
 437         }
 438
 439         @Override
 440         public void exception(Throwable t) {
 441             LOGGER.error("Could not listen ColoringObjects", t);
 442         }
 443
 444         @Override
 445         public boolean isDisposed() {
 446             return isDisposed.get();
 447         }
 448     }
 449
 450     private static class ColorBarOptionsListener implements Listener<ColorBarOptions> {
 451
 452         private static final Logger LOGGER = LoggerFactory.getLogger(ColorBarOptionsListener.class);
 453
 454         private Consumer<ColorBarOptions> callback;
 455         private Supplier<Boolean> isDisposed;
 456
 457         public ColorBarOptionsListener(Consumer<ColorBarOptions> callback, Supplier<Boolean> isDisposed) {
 458             this.callback = callback;
 459             this.isDisposed = isDisposed;
 460         }
 461
 462         @Override
 463         public void execute(ColorBarOptions result) {
 464             callback.accept(result);
 465         }
 466
 467         @Override
 468         public void exception(Throwable t) {
 469             LOGGER.error("Could not listen ColorBarOptions", t);
 470         }
 471
 472         @Override
 473         public boolean isDisposed() {
 474             return isDisposed.get();
 475         }
 476     }
 477
 478     private static class SizeBarOptionsRequest extends UnaryRead<Resource, SizeBarOptions> {
 479
 480         public SizeBarOptionsRequest(Resource diagram) {
 481             super(diagram);
 482         }
 483
 484         @Override
 485         public SizeBarOptions perform(ReadGraph graph) throws DatabaseException {
 486             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 487             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 488             if (model != null) {
 489                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 490                 if (vf != null) {
 491                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 492                     if (activeVisualisation != null) {
 493                         return DynamicVisualisations.sizeBarOptions(graph, activeVisualisation);
 494                     }
 495                 } else {
 496                     LOGGER.debug("No visualisation folder available for model {}", model);
 497                 }
 498             }
 499             return SizeBarOptions.useDefault();
 500         }
 501     }
 502
 503     private static class SizeBarOptionsListener implements Listener<SizeBarOptions> {
 504
 505         private static final Logger LOGGER = LoggerFactory.getLogger(SizeBarOptionsListener.class);
 506
 507         private Consumer<SizeBarOptions> callback;
 508         private Supplier<Boolean> isDisposed;
 509
 510         public SizeBarOptionsListener(Consumer<SizeBarOptions> callback, Supplier<Boolean> isDisposed) {
 511             this.callback = callback;
 512             this.isDisposed = isDisposed;
 513         }
 514
 515         @Override
 516         public void execute(SizeBarOptions result) {
 517             callback.accept(result);
 518         }
 519
 520         @Override
 521         public void exception(Throwable t) {
 522             LOGGER.error("Could not listen SizeBarOptions", t);
 523         }
 524
 525         @Override
 526         public boolean isDisposed() {
 527             return isDisposed.get();
 528         }
 529     }
 530
 531     private static class SizingObjectsRequest extends UnaryRead<Resource, Map<String, DynamicSizeContribution>> {
 532
 533         public SizingObjectsRequest(Resource diagram) {
 534             super(diagram);
 535         }
 536
 537         @Override
 538         public Map<String, DynamicSizeContribution> perform(ReadGraph graph) throws DatabaseException {
 539             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 540             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 541             if (model != null) {
 542                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 543                 if (vf != null) {
 544                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 545                     if (activeVisualisation != null) {
 546                         return DynamicVisualisations.sizeContributions(graph, activeVisualisation);
 547                     }
 548                 } else {
 549                     LOGGER.debug("No visualisation folder available for model {}", model);
 550                 }
 551             }
 552             return Collections.emptyMap();
 553         }
 554     }
 555
 556     private static class SizingObjectsListener implements Listener<Map<String,DynamicSizeContribution>> {
 557
 558         private static final Logger LOGGER = LoggerFactory.getLogger(SizingObjectsListener.class);
 559
 560         private Consumer<Map<String,DynamicSizeContribution>> callback;
 561         private Supplier<Boolean> isDisposed;
 562
 563         public SizingObjectsListener(Consumer<Map<String, DynamicSizeContribution>> callback, Supplier<Boolean> isDisposed) {
 564             this.callback = callback;
 565             this.isDisposed = isDisposed;
 566         }
 567
 568         @Override
 569         public void execute(Map<String, DynamicSizeContribution> result) {
 570             callback.accept(result);
 571         }
 572
 573         @Override
 574         public void exception(Throwable t) {
 575             LOGGER.error("Could not listen SizingObjectsOptions", t);
 576         }
 577
 578         @Override
 579         public boolean isDisposed() {
 580             return isDisposed.get();
 581         }
 582     }
 583
 584     private static class ShowElevationServerRequest extends UnaryRead<Resource, Boolean> {
 585
 586         public ShowElevationServerRequest(Resource diagram) {
 587             super(diagram);
 588         }
 589
 590         @Override
 591         public Boolean perform(ReadGraph graph) throws DatabaseException {
 592             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 593             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 594             if (model != null) {
 595                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 596                 if (vf != null) {
 597                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 598                     if (activeVisualisation != null) {
 599                         return DynamicVisualisations.showElevationServerBoundingBox(graph, activeVisualisation);
 600                     }
 601                 } else {
 602                     LOGGER.debug("No visualisation folder available for model {}", model);
 603                 }
 604             }
 605             return false;
 606         }
 607     }
 608
 609     private static class ShowElevationServerListener implements Listener<Boolean> {
 610
 611         private static final Logger LOGGER = LoggerFactory.getLogger(ShowElevationServerListener.class);
 612
 613         private Consumer<Boolean> callback;
 614         private Supplier<Boolean> isDisposed;
 615
 616         public ShowElevationServerListener(Consumer<Boolean> callback, Supplier<Boolean> isDisposed) {
 617             this.callback = callback;
 618             this.isDisposed = isDisposed;
 619         }
 620
 621         @Override
 622         public void execute(Boolean result) {
 623             callback.accept(result);
 624         }
 625
 626         @Override
 627         public void exception(Throwable t) {
 628             LOGGER.error("Could not listen Show Elevation Server", t);
 629         }
 630
 631         @Override
 632         public boolean isDisposed() {
 633             return isDisposed.get();
 634         }
 635     }
 636 }