bundles/org.simantics.spreadsheet.graph/src/org/simantics/spreadsheet/graph/GraphUI.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.spreadsheet.graph;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.Collections;
  17 import java.util.List;
  18 import java.util.Map;
  19 import java.util.function.Consumer;
  20
  21 import org.eclipse.e4.core.contexts.IEclipseContext;
  22 import org.eclipse.e4.ui.di.UISynchronize;
  23 import org.eclipse.jface.dialogs.Dialog;
  24 import org.eclipse.ui.PlatformUI;
  25 import org.simantics.Simantics;
  26 import org.simantics.databoard.Bindings;
  27 import org.simantics.databoard.binding.Binding;
  28 import org.simantics.databoard.binding.mutable.MutableVariant;
  29 import org.simantics.databoard.binding.mutable.Variant;
  30 import org.simantics.db.AsyncReadGraph;
  31 import org.simantics.db.ReadGraph;
  32 import org.simantics.db.RequestProcessor;
  33 import org.simantics.db.Resource;
  34 import org.simantics.db.WriteGraph;
  35 import org.simantics.db.common.procedure.adapter.AsyncListenerSupport;
  36 import org.simantics.db.common.procedure.adapter.ListenerSupport;
  37 import org.simantics.db.common.procedure.adapter.SyncListenerSupport;
  38 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
  39 import org.simantics.db.common.procedure.single.SingleSetSyncListenerDelegate;
  40 import org.simantics.db.common.request.ReadRequest;
  41 import org.simantics.db.common.request.ResourceRead;
  42 import org.simantics.db.common.request.UnaryRead;
  43 import org.simantics.db.common.request.UniqueRead;
  44 import org.simantics.db.common.request.WriteRequest;
  45 import org.simantics.db.common.request.WriteResultRequest;
  46 import org.simantics.db.common.session.SessionEventListenerAdapter;
  47 import org.simantics.db.exception.DatabaseException;
  48 import org.simantics.db.layer0.StandardRealm;
  49 import org.simantics.db.layer0.request.PossibleURIVariable;
  50 import org.simantics.db.layer0.request.VariableName;
  51 import org.simantics.db.layer0.request.VariableRead;
  52 import org.simantics.db.layer0.variable.ProxyVariables;
  53 import org.simantics.db.layer0.variable.Variable;
  54 import org.simantics.db.layer0.variable.Variables;
  55 import org.simantics.db.procedure.SyncListener;
  56 import org.simantics.db.request.Write;
  57 import org.simantics.db.service.SessionEventSupport;
  58 import org.simantics.layer0.Layer0;
  59 import org.simantics.spreadsheet.Adaptable;
  60 import org.simantics.spreadsheet.CellEditor;
  61 import org.simantics.spreadsheet.ClientModel;
  62 import org.simantics.spreadsheet.ClientModel.OperationMode;
  63 import org.simantics.spreadsheet.SheetCommands;
  64 import org.simantics.spreadsheet.event.model.RemoveCellHandler;
  65 import org.simantics.spreadsheet.resource.SpreadsheetResource;
  66 import org.simantics.ui.selection.WorkbenchSelectionUtils;
  67 import org.simantics.utils.datastructures.Pair;
  68 import org.simantics.utils.strings.AlphanumComparator;
  69 import org.simantics.utils.threads.logger.ITask;
  70 import org.simantics.utils.threads.logger.ThreadLogger;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73
  74 import gnu.trove.map.hash.THashMap;
  75 import gnu.trove.map.hash.TObjectIntHashMap;
  76
  77 class FilteredVariableProperties extends UnaryRead<Variable, Collection<Pair<String,Variable>>> {
  78
  79         final static String CLASSIFICATION = SpreadsheetResource.URIs.Attribute;
  80
  81     public FilteredVariableProperties(Variable variable) {
  82         super(variable);
  83     }
  84
  85     @Override
  86     public Collection<Pair<String,Variable>> perform(ReadGraph graph) throws DatabaseException {
  87         ArrayList<Pair<String,Variable>> result = new ArrayList<Pair<String,Variable>>();
  88         for(Variable var : parameter.getProperties(graph, CLASSIFICATION)) {
  89                 String name = var.getName(graph);
  90                 String uri = var.getURI(graph);
  91                 result.add(Pair.make(name, var));
  92                 Variable expression = var.getPossibleProperty(graph, "expression");
  93                 if(expression != null)
  94                     result.add(Pair.make(name + "#expression", expression));
  95                 Variable editable = var.getPossibleProperty(graph, "editable");
  96             if(editable != null)
  97                 result.add(Pair.make(name + "#editable", editable));
  98         }
  99         return result;
 100     }
 101
 102 }
 103
 104 public class GraphUI implements Adaptable, ListenerSupport, AsyncListenerSupport, SyncListenerSupport {
 105
 106         private static final Logger LOGGER = LoggerFactory.getLogger(GraphUI.class);
 107
 108         final public static boolean DEBUG = false;
 109
 110     final private RequestProcessor processor;
 111
 112     private CellEditor<Write> cellEditor;
 113
 114     private Variable run;
 115     private ClientModel client;
 116
 117     private Map<String, PropertyListener> listenerCache = new THashMap<>();
 118
 119     public GraphUI(RequestProcessor processor) {
 120         this.processor = processor;
 121     }
 122
 123     public void addCell(ReadGraph graph, Pair<String, Variable> child, final ClientModel client) throws DatabaseException {
 124
 125                 if(DEBUG) System.out.println("GraphUI adds cell  " + child.second.getURI(graph));
 126
 127         final String childName = child.second.getName(graph);
 128         Boolean immutable = child.second.getPossiblePropertyValue(graph, "immutable", Bindings.BOOLEAN);
 129         if(immutable != null && immutable) {
 130                 Collection<Variable> properties = child.second.getProperties(graph, FilteredVariableProperties.CLASSIFICATION);
 131                 addProperties(graph, properties, client, childName);
 132         } else {
 133             PropertyListener listener = listenerCache.get(child.first);
 134             if (listener == null) {
 135                     listener = propertyListener(client, childName);
 136                     listenerCache.put(child.first, listener);
 137             }
 138                 graph.asyncRequest(new FilteredVariableProperties(child.second), listener);
 139         }
 140
 141     }
 142
 143     public void removeCell(ReadGraph graph, Pair<String, Variable> child, final ClientModel client) throws DatabaseException {
 144
 145                 if(DEBUG) System.out.println("GraphUI removed cell " + child.first);
 146
 147                 client.clear(child.first);
 148                 PropertyListener listener = listenerCache.remove(child.first);
 149                 if (listener != null)
 150                     listener.dispose();
 151
 152     }
 153
 154     public void loadCells(ReadGraph graph, Variable container, boolean immutable, final ClientModel client) throws DatabaseException {
 155
 156                 if(DEBUG) System.out.println("GraphUI loads cells from " + container.getURI(graph));
 157
 158                 if(immutable) {
 159                         for(Pair<String, Variable> cell : graph.syncRequest(new Cells(container), TransientCacheAsyncListener.<Collection<Pair<String, Variable>>>instance())) {
 160                                 addCell(graph, cell, client);
 161                         }
 162                 } else {
 163                 graph.syncRequest(new Cells(container), new SingleSetSyncListenerDelegate<Pair<String, Variable>>(GraphUI.this) {
 164
 165                     @Override
 166                     public void add(ReadGraph graph, final Pair<String, Variable> child) throws DatabaseException {
 167                         addCell(graph, child, client);
 168                     }
 169
 170                     @Override
 171                     public void remove(ReadGraph graph, final Pair<String, Variable> child) throws DatabaseException {
 172                         removeCell(graph, child, client);
 173                     }
 174                 });
 175                 }
 176
 177     }
 178
 179     private SessionEventListenerAdapter listener;
 180
 181     private String currentSource;
 182
 183     private boolean disposed;
 184
 185     public Resource load(final Variable variable, final ClientModel client) throws DatabaseException {
 186
 187 //        for (PropertyListener listener : listenerCache.values())
 188 //            listener.dispose();
 189 //
 190 //        listenerCache.clear();
 191
 192
 193
 194         assert(variable != null);
 195
 196         this.run = variable;
 197         this.client = client;
 198
 199         SessionEventSupport support = processor.getService(SessionEventSupport.class);
 200
 201         for (PropertyListener listener : listenerCache.values()) {
 202             listener.dispose();
 203         }
 204         listenerCache.clear();
 205
 206         if(listener != null)
 207                 support.removeListener(listener);
 208
 209         listener = new SessionEventListenerAdapter() {
 210
 211                 @Override
 212                 public void writeTransactionFinished() {
 213                         client.flush();
 214                 }
 215
 216         };
 217
 218         support.addListener(listener);
 219
 220         this.cellEditor = processor.sync(new VariableRead<CellEditor<Write>>(variable) {
 221
 222                         @Override
 223                         public CellEditor<Write> perform(ReadGraph graph) throws DatabaseException {
 224                                 SpreadsheetResource SHEET = SpreadsheetResource.getInstance(graph);
 225                                 return variable.getPropertyValue(graph, SHEET.cellEditor);
 226                         }
 227
 228         });
 229
 230                 final ITask task = ThreadLogger.getInstance().begin("GraphUI.init");
 231
 232                 client.clearAll();
 233
 234                 Map<String,Variable> sources = processor.syncRequest(new Sources(variable));
 235
 236                 List<String> sheetList = processor.syncRequest(new Sheets(variable));
 237                 String currentSheet = processor.syncRequest(new VariableName(variable));
 238
 239                 Map<String, Resource> stateList = processor.syncRequest(new SpreadsheetStates(variable));
 240
 241                 if(currentSource == null) currentSource = "Sheet";
 242
 243                 ArrayList<String> sourceList = new ArrayList<String>(sources.keySet());
 244
 245                 Collections.sort(sourceList, AlphanumComparator.CASE_INSENSITIVE_COMPARATOR);
 246                 if(!sourceList.contains(currentSource)) sourceList.add(currentSource);
 247
 248                 client.setProperty(ClientModel.SOURCES, ClientModel.SOURCES_AVAILABLE, sourceList.toArray(new String[sourceList.size()]));
 249                 client.setProperty(ClientModel.SOURCES, ClientModel.SOURCES_CURRENT, currentSource);
 250
 251                 client.setProperty(ClientModel.SHEETS, ClientModel.SHEETS_AVAILABLE, sheetList.toArray(new String[sheetList.size()]));
 252                 client.setProperty(ClientModel.SHEETS, ClientModel.SHEETS_CURRENT, currentSheet);
 253
 254                 client.setProperty(ClientModel.STATES, ClientModel.STATES_AVAILABLE, stateList.keySet().toArray(new String[stateList.size()]));
 255
 256                 client.setProperty(ClientModel.CONTEXT, ClientModel.CONTEXT_CURRENT, variable);
 257
 258                 client.setProperty(ClientModel.MODE, ClientModel.MODE_CURRENT, OperationMode.OPERATION);
 259
 260                 String currentState = processor.syncRequest(new UniqueRead<String>() {
 261
 262             @Override
 263             public String perform(ReadGraph graph) throws DatabaseException {
 264                 Resource book = variable.getParent(graph).getRepresents(graph);
 265                 Resource ic = graph.getPossibleObject(book, SpreadsheetResource.getInstance(graph).Book_HasDefaultInitialCondition);
 266                 if (ic == null)
 267                         return "";
 268                 return graph.getRelatedValue2(ic, Layer0.getInstance(graph).HasName, Bindings.STRING);
 269             }
 270         });
 271
 272                 client.setProperty(ClientModel.STATES, ClientModel.STATES_CURRENT, currentState);
 273
 274         processor.syncRequest(new ReadRequest() {
 275
 276             @Override
 277             public void run(ReadGraph graph) throws DatabaseException {
 278
 279                 loadCells(graph, variable, false, client);
 280
 281                 graph.syncRequest(new Ranges(variable), new SingleSetSyncListenerDelegate<Variable>(GraphUI.this) {
 282
 283                     @Override
 284                     public void add(ReadGraph graph, final Variable range) throws DatabaseException {
 285
 286                                 if(DEBUG) System.out.println("GraphUI adds range  " + range.getURI(graph));
 287
 288                         Boolean immutable = range.getPossiblePropertyValue(graph, "immutable", Bindings.BOOLEAN);
 289                         loadCells(graph, range, immutable != null && immutable, client);
 290
 291                     }
 292
 293                     @Override
 294                     public void remove(ReadGraph graph, final Variable range) throws DatabaseException {
 295
 296                     }
 297
 298                 });
 299
 300
 301                 graph.syncRequest(new SheetLines(variable), new SingleSetSyncListenerDelegate<Variable>(GraphUI.this) {
 302
 303                     @Override
 304                     public void add(ReadGraph graph, final Variable range) throws DatabaseException {
 305
 306                                 if(DEBUG) System.out.println("GraphUI adds line  " + range.getURI(graph));
 307
 308                         Boolean immutable = range.getPossiblePropertyValue(graph, "immutable", Bindings.BOOLEAN);
 309                         loadCells(graph, range, immutable != null && immutable, client);
 310
 311                     }
 312
 313                     @Override
 314                     public void remove(ReadGraph graph, final Variable range) throws DatabaseException {
 315
 316                     }
 317                 });
 318
 319             }
 320
 321 //            @Override
 322 //            public void remove(ReadGraph graph, Variable child) throws DatabaseException {
 323 //
 324 //              String location = locations.get(cellResource);
 325 //              assert(location != null);
 326 //
 327 //              client.setProperty(location, "Label", null);
 328 //              client.setProperty(location, "Expression", null);
 329 //
 330 //            }
 331
 332         });
 333
 334
 335                 task.finish();
 336                 client.flush();
 337
 338                 return null;
 339
 340     }
 341
 342     private static class PropertyListener extends SingleSetSyncListenerDelegate<Pair<String,Variable>> {
 343
 344         private static final Logger LOGGER = LoggerFactory.getLogger(PropertyListener.class);
 345
 346         private ClientModel client;
 347         private String childName;
 348         private boolean listenerDisposed;
 349
 350         public PropertyListener(AsyncListenerSupport support, ClientModel client, String childName) {
 351             super(support);
 352             this.client = client;
 353             this.childName = childName;
 354         }
 355
 356         @Override
 357         public void add(ReadGraph graph, final Pair<String,Variable> property) throws DatabaseException {
 358
 359             if(DEBUG)
 360                 System.out.println("GraphUI adds property  " + property.second.getURI(graph));
 361
 362             graph.asyncRequest(new CellValue(property.second), new SyncListener<Object>() {
 363
 364                 @Override
 365                 public void execute(ReadGraph graph, final Object value) throws DatabaseException {
 366
 367                     String propertyName = property.first;
 368
 369                     if(DEBUG)
 370                         System.out.println("GraphUI detected content change(1) at  " + childName + " - " + propertyName + " -> " + value);
 371                     client.setProperty(childName, propertyName, value);
 372
 373                 }
 374
 375                 @Override
 376                 public void exception(ReadGraph graph, Throwable throwable) throws DatabaseException {
 377
 378                     LOGGER.error("PropertyListener.exception", throwable);
 379
 380                     String propertyName = property.first;
 381                     if("content".equals(propertyName)) {
 382                         if(throwable == null) throwable = new Exception();
 383                         String message = throwable.getMessage();
 384                         if(message == null) message = throwable.toString();
 385                         client.setProperty(childName, propertyName, Variant.ofInstance(message));
 386                     } else {
 387                         client.setProperty(childName, propertyName, null);
 388                     }
 389
 390                 }
 391
 392                 @Override
 393                 public boolean isDisposed() {
 394                     return listenerDisposed;
 395                 }
 396
 397             });
 398         }
 399
 400         public void dispose() {
 401             listenerDisposed = true;
 402         }
 403
 404         @Override
 405         public String toString() {
 406             return super.toString() + ":" + childName;
 407         }
 408
 409     }
 410
 411     private PropertyListener propertyListener(final ClientModel client, final String childName) {
 412         return new PropertyListener(this, client, childName);
 413     }
 414
 415     private void addProperties(ReadGraph graph, final Collection<Variable> properties, final ClientModel client, final String childName) throws DatabaseException {
 416
 417         for(Variable property : properties) {
 418
 419                 if(DEBUG) System.out.println("GraphUI adds immutable property  " + property.getURI(graph));
 420
 421                 final String propertyName = property.getName(graph);
 422
 423                 Object value = property.getValue(graph);
 424
 425                 if(DEBUG) System.out.println("GraphUI detected change at  " + childName + " - " + propertyName + " -> " + value);
 426                 client.setProperty(childName, propertyName, value);
 427
 428                 String expression = property.getPossiblePropertyValue(graph, "expression", Bindings.STRING);
 429                 if(expression != null) {
 430                         if(DEBUG) System.out.println("GraphUI detected change at  " + childName + " - " + (propertyName + "#expression") + " -> " + value);
 431                         client.setProperty(childName, propertyName + "#expression", expression);
 432                 }
 433
 434             Boolean editable = property.getPossiblePropertyValue(graph, "editable", Bindings.STRING);
 435             if(editable != null) {
 436                 if(DEBUG) System.out.println("GraphUI detected change at  " + childName + " - " + (propertyName + "#editable") + " -> " + value);
 437                 client.setProperty(childName, propertyName + "#editable", editable);
 438             }
 439
 440         }
 441
 442     }
 443
 444     @SuppressWarnings("unchecked")
 445     @Override
 446     public <T> T getAdapter(Class<T> clazz) {
 447
 448         if(Variable.class == clazz) {
 449
 450                 return (T)run;
 451
 452         } else if(RemoveCellHandler.class == clazz) {
 453
 454             return (T) new RemoveCellHandler() {
 455
 456                                 @Override
 457                                 public void handle(final String location) {
 458
 459                                 processor.asyncRequest(new ReadRequest() {
 460
 461                                     @Override
 462                                     public void run(ReadGraph graph) throws DatabaseException {
 463
 464                                                         Variable cellVariable = run.getPossibleChild(graph, location);
 465                                                         if(cellVariable != null) {
 466                                                                 final Resource config = cellVariable.getPossiblePropertyValue(graph, "Represents");
 467                                                                 if(config != null) {
 468
 469                                                                         graph.asyncRequest(new WriteRequest() {
 470
 471                                                                                 @Override
 472                                                                                 public void perform(WriteGraph graph) throws DatabaseException {
 473
 474                                                                                         Layer0 l0 = Layer0.getInstance(graph);
 475 //                                                                                      SpreadsheetResource sr = SpreadsheetResource.getInstance(graph);
 476                                                                                         graph.deny(config, l0.PartOf);
 477 //                                                                                      graph.deny(config, sr.RowOf);
 478 //                                                                                      graph.deny(config, sr.ColumnOf);
 479
 480                                                                                 }
 481
 482                                                                         });
 483
 484                                                                 }
 485                                                         }
 486
 487                                     }
 488
 489                                 });
 490
 491                                 }
 492
 493             };
 494
 495         } else if(CellEditor.class == clazz) {
 496
 497                 return (T)new CellEditor<Write>() {
 498
 499                                 @Override
 500                                 public <E> void edit(Transaction<Write> transaction, String location, String property, E value, Binding binding, Consumer<?> callback) {
 501
 502                                     if (ClientModel.ITERATION_ENABLED.equals(location)) {
 503                                         Simantics.getSession().asyncRequest(new ReadRequest() {
 504                                                         @Override
 505                                                         public void run(ReadGraph graph) throws DatabaseException {
 506                                                                 getBook(graph).setIterationEnabled((boolean)value);
 507                                                         }
 508                                                 });
 509                                         return;
 510                                     }
 511
 512                                     if (ClientModel.MODE.equals(location)) {
 513                                         if (ClientModel.MODE_CURRENT.equals(property)) {
 514                                             client.setProperty(location, property, value);
 515                                             client.flush();
 516                                             return;
 517                                         }
 518                                     }
 519
 520                                     if (ClientModel.CONTEXT.equals(location)) {
 521                                         if(ClientModel.CONTEXT_CURRENT.equals(property)) {
 522                             if(value instanceof String) {
 523                                 try {
 524                                     Variable newContext = processor.syncRequest(new UnaryRead<String, Variable>((String)value) {
 525
 526                                         @Override
 527                                         public Variable perform(ReadGraph graph) throws DatabaseException {
 528
 529                                             String sheetName = run.getName(graph);
 530
 531                                             Variable book = Variables.getContext(graph, run);
 532                                             Resource bookResource = book.getRepresents(graph);
 533
 534                                             Variable input = Variables.getVariable(graph, parameter);
 535                                             Variable proxy = ProxyVariables.makeProxyVariable(graph, Variables.getVariable(graph, bookResource), input);
 536
 537                                             return proxy.getChild(graph, sheetName);
 538
 539 //                                            return variable.getParent(graph).getChild(graph, parameter);
 540                                         }
 541
 542                                     });
 543
 544                                     load(newContext, client);
 545                                     return;
 546                                 } catch (DatabaseException e) {
 547                                     LOGGER.error("edit failed for model key '" + ClientModel.CONTEXT_CURRENT + "'", e);
 548                                 }
 549                             }
 550                                         }
 551                                     }
 552
 553                                         if(ClientModel.SHEETS.equals(location)) {
 554                                                 if(ClientModel.SHEETS_CURRENT.equals(property)) {
 555
 556                                                         if(value instanceof String) {
 557
 558                                                                 try {
 559
 560                                                                         Variable newInput = processor.syncRequest(new UnaryRead<String, Variable>((String)value) {
 561
 562                                                                                 @Override
 563                                                                                 public Variable perform(ReadGraph graph) throws DatabaseException {
 564                                                                                         return run.getParent(graph).getChild(graph, parameter);
 565                                                                                 }
 566
 567                                                                         });
 568
 569                                                                         load(newInput, client);
 570                                                                         return;
 571                                                                 } catch (DatabaseException e) {
 572                                                                         LOGGER.error("edit failed for model key '" + ClientModel.SHEETS_CURRENT + "'", e);
 573                                                                 }
 574                                                         }
 575                                                 }
 576                                         }
 577
 578                    if(ClientModel.STATES.equals(location)) {
 579                         if(ClientModel.STATES_CURRENT.equals(property)) {
 580                             if(value instanceof String) {
 581                                 final String parameter = (String) value;
 582                                 try {
 583
 584                                     String uri = processor.syncRequest(new WriteResultRequest<String>() {
 585
 586                                         @Override
 587                                         public String perform(WriteGraph graph) throws DatabaseException {
 588
 589                                             Map<String, Resource> states = graph.syncRequest(new SpreadsheetStates(run));
 590
 591                                             Resource state = null;
 592                                             for (Map.Entry<String, Resource> entry : states.entrySet()) {
 593                                                 if (entry.getKey().equals(parameter)) {
 594                                                     state = entry.getValue();
 595                                                     break;
 596                                                 }
 597                                             }
 598                                             if (state != null) {
 599                                                 Variable context = Variables.getContext(graph, run);
 600                                                 Resource bookResource = context.getRepresents(graph);
 601                                                 SpreadsheetGraphUtils.setDefaultInitialConditionForBook(graph, bookResource, state);
 602
 603                                                 String contextURI = context.getURI(graph);
 604
 605                                                 String sessionName = context.getParent(graph).getURI(graph);
 606                                                 SpreadsheetSessionManager.getInstance().removeRealm(graph, sessionName);
 607                                                 SpreadsheetSessionManager.getInstance().getOrCreateRealm(graph, sessionName);
 608                                             }
 609
 610                                             return run.getURI(graph);
 611                                         }
 612                                     });
 613                                     Variable newInput = processor.syncRequest(new PossibleURIVariable(uri));
 614                                     load(newInput, client);
 615 //                                    fullSynchronize();
 616                                     return;
 617                                 } catch (DatabaseException e) {
 618                                     LOGGER.error("edit failed for model key '" + ClientModel.STATES_CURRENT + "'", e);
 619                                 }
 620                             }
 621                         }
 622                     }
 623
 624                                         if(ClientModel.SOURCES.equals(location)) {
 625                                                 if(ClientModel.SOURCES_CURRENT.equals(property)) {
 626                                                         try {
 627                                                                 Resource res = WorkbenchSelectionUtils.getPossibleResource(value);
 628                                                                 if(res != null) {
 629
 630                                                                         Variable newInput = processor.syncRequest(new ResourceRead<Variable>(res) {
 631
 632                                                                                 @Override
 633                                                                                 public Variable perform(ReadGraph graph) throws DatabaseException {
 634                                                                                         Variable base = ProxyVariables.proxyVariableBase(graph, run);
 635                                                                                         Variable in = Variables.getVariable(graph, resource);
 636                                                                                         currentSource = in.getURI(graph);
 637                                                                                         return ProxyVariables.makeProxyVariable(graph, base, in);
 638                                                                                 }
 639
 640                                                                         });
 641
 642                                                                         load(newInput, client);
 643
 644                                                                         return;
 645
 646                                                                 } else if(value instanceof String) {
 647
 648                                                                         Variable newInput = processor.syncRequest(new UnaryRead<String, Variable>((String)value) {
 649
 650                                                                                 @Override
 651                                                                                 public Variable perform(ReadGraph graph) throws DatabaseException {
 652
 653                                                                                         Variable base = ProxyVariables.proxyVariableBase(graph, run);
 654                                                                                         Map<String,Variable> sources = graph.syncRequest(new Sources(base));
 655
 656                                                                                         Variable found = sources.get(parameter);
 657                                                                                         if(found == null) return null;
 658
 659                                                                                         currentSource = parameter;
 660
 661                                                                                         return ProxyVariables.makeProxyVariable(graph, base, found);
 662
 663                                                                                 }
 664
 665                                                                         });
 666
 667                                                                         load(newInput, client);
 668                                                                         return;
 669                                                                 }
 670
 671                                                         } catch (DatabaseException e) {
 672                                                                 LOGGER.error("edit failed for model key '" + ClientModel.SOURCES_CURRENT + "'", e);
 673                                                         }
 674                                                 }
 675                                                 return;
 676                                         }
 677                                         boolean needsCommit = false;
 678                                         if (transaction == null) {
 679                                             OperationMode mode = client.getPropertyAt(ClientModel.MODE, ClientModel.MODE_CURRENT);
 680                                             transaction = startTransaction(mode);
 681 //                                          if (mode.equals(OperationMode.OPERATION))
 682                                         transaction.setContext(run);
 683                                             needsCommit = true;
 684                                         }
 685                                         final Transaction<Write> finalTransaction = transaction;
 686                                         cellEditor.edit(transaction, location, property, value, binding, new Consumer<Object>() {
 687
 688                         @Override
 689                         public void accept(Object param) {
 690                             if (finalTransaction.needSynchronization() != null)
 691                                 synchronize(finalTransaction.needSynchronization());
 692                         }
 693                                         });
 694                                         if (needsCommit)
 695                                             transaction.commit();
 696                                 }
 697
 698                                 @Override
 699                                 public void edit(Transaction<Write> transaction, String location, Variant variant, Consumer<?> callback) {
 700                                     boolean needsCommit = false;
 701                                     if (transaction == null) {
 702                                         OperationMode mode = client.getPropertyAt(ClientModel.MODE, ClientModel.MODE_CURRENT);
 703                                         transaction = startTransaction(mode);
 704 //                                      if (mode.equals(OperationMode.OPERATION))
 705                                     transaction.setContext(run);
 706                                         needsCommit = true;
 707                                     }
 708                                     final Transaction<Write> finalTransaction = transaction;
 709                                         cellEditor.edit(transaction, location, variant, new Consumer<Object>() {
 710
 711                         @Override
 712                         public void accept(Object param) {
 713                             if (finalTransaction.needSynchronization() != null)
 714                                 synchronize(finalTransaction.needSynchronization());
 715                         }
 716                     });
 717                                         if (needsCommit)
 718                                             transaction.commit();
 719                                 }
 720
 721                                 @Override
 722                                 public void copy(final Transaction<Write> transaction, String location, MutableVariant variant, Consumer<?> callback) {
 723                                         cellEditor.edit(transaction, location, variant, new Consumer<Object>() {
 724
 725                         @Override
 726                         public void accept(Object param) {
 727                             if (transaction.needSynchronization() != null)
 728                                 synchronize(transaction.needSynchronization());
 729                         }
 730                                         });
 731                                 }
 732
 733                                 @Override
 734                                 public Transaction<Write> startTransaction(OperationMode mode) {
 735                                         return cellEditor.startTransaction(mode);
 736                                 }
 737
 738                 };
 739
 740         } else if (SheetCommands.class == clazz ) {
 741
 742             return (T) new SheetCommands() {
 743
 744                 @Override
 745                 public void saveState() {
 746
 747                     Simantics.getSession().asyncRequest(new ReadRequest() {
 748
 749                         @Override
 750                         public void run(ReadGraph graph) throws DatabaseException {
 751                             IEclipseContext context = PlatformUI.getWorkbench().getService(IEclipseContext.class);
 752
 753                             Resource uiContextResource = run.getRepresents(graph);
 754                             Resource bookResource = Variables.getContext(graph, run).getRepresents(graph);
 755                             Layer0 L0 = Layer0.getInstance(graph);
 756                             String uiContextName = graph.getRelatedValue2(uiContextResource, L0.HasName, Bindings.STRING);
 757                             String bookName = graph.getRelatedValue2(bookResource, L0.HasName, Bindings.STRING);
 758
 759                             UISynchronize synchronizer = context.get(UISynchronize.class);
 760                             synchronizer.asyncExec(() -> {
 761                                 Pair<String, Resource>[] pairs = new Pair[] {Pair.make(uiContextName, uiContextResource), Pair.make(bookName, bookResource) };
 762                                 SaveSpreadsheetStateDialog dialog = new SaveSpreadsheetStateDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor().getSite(), "Save Spreadsheet state", pairs);
 763                                 if (dialog.open() == Dialog.OK) {
 764                                     Object[] result = dialog.getSelection();
 765                                     if (result != null) {
 766                                         Pair<Resource, String> p = (Pair<Resource, String>) result[0];
 767                                         Simantics.getSession().asyncRequest(new WriteRequest() {
 768
 769                                             @Override
 770                                             public void perform(WriteGraph graph) throws DatabaseException {
 771
 772                                                 Variable parent = run.getParent(graph);
 773                                                 Variable base = ProxyVariables.proxyVariableBase(graph, parent);
 774                                                 SpreadsheetGraphUtils.saveInitialCondition(graph, parent, p.first, p.second);
 775                                             }
 776                                         });
 777                                     }
 778                                 } else {
 779                                     return;
 780                                 }
 781                             });
 782                         }
 783                     });
 784                 }
 785             };
 786         }
 787
 788         return null;
 789
 790     }
 791
 792     @Override
 793     public void exception(Throwable t) {
 794         t.printStackTrace();
 795     }
 796
 797     @Override
 798     public boolean isDisposed() {
 799         return disposed;
 800     }
 801
 802     @Override
 803     public void exception(AsyncReadGraph graph, Throwable t) {
 804         LOGGER.error("Failed to read properties.", t);
 805     }
 806
 807     @Override
 808     public void exception(ReadGraph graph, Throwable t) {
 809         LOGGER.error("Failed to read properties.", t);
 810     }
 811
 812     public void dispose() {
 813         for (PropertyListener listener : listenerCache.values())
 814             listener.dispose();
 815
 816         listenerCache.clear();
 817         SessionEventSupport support = processor.getService(SessionEventSupport.class);
 818         support.removeListener(listener);
 819         disposed = true;
 820     }
 821
 822     private void synchronize(List<Object> list) {
 823         Simantics.getSession().asyncRequest(new FullSynchronizeBook(run, list));
 824     }
 825
 826     public static class FullSynchronizeBook extends ReadRequest {
 827
 828         private final Variable run;
 829         private final List<Object> location;
 830
 831         public FullSynchronizeBook(Variable run, List<Object> cellLocation) {
 832             this.run = run;
 833             this.location = cellLocation;
 834         }
 835
 836         @Override
 837         public void run(ReadGraph graph) throws DatabaseException {
 838             String uri = run.getURI(graph);
 839             String parentUri = run.getParent(graph).getURI(graph);
 840             System.err.println("Full sync for book " + parentUri);
 841
 842             Resource sheetResource = run.getRepresents(graph);
 843             Variable sheetVariable = Variables.getVariable(graph, sheetResource);
 844
 845             TObjectIntHashMap<Variable> changes = null;
 846             if (location != null) {
 847                 changes = new TObjectIntHashMap<>(location.size());
 848                 for (Object loc : location) {
 849                     Variable var = (Variable) loc;
 850                     changes.put(var, 1);
 851                 };
 852             }
 853             SpreadsheetGraphUtils.partialSynchronization(graph, run.getParent(graph), changes);
 854         }
 855
 856     }
 857
 858     private SpreadsheetBook getBook(ReadGraph graph) throws DatabaseException {
 859         String sessionName = run.getParent(graph).getParent(graph).getURI(graph);
 860         StandardRealm<SheetNode, SpreadsheetBook> realm = SpreadsheetSessionManager.getInstance().getOrCreateRealm(graph, sessionName);
 861         SpreadsheetBook book = realm.getEngine();
 862         return book;
 863     }
 864
 865 }