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