1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.db.layer0.adapter.impl;
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14 import java.util.ArrayList;
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15 import java.util.Collection;
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16 import java.util.Collections;
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17 import java.util.HashSet;
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18 import java.util.Map;
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19 import java.util.Set;
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21 import org.simantics.db.ReadGraph;
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22 import org.simantics.db.Resource;
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23 import org.simantics.db.WriteGraph;
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24 import org.simantics.db.exception.DatabaseException;
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25 import org.simantics.db.layer0.adapter.PasteHandlerAdapter;
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26 import org.simantics.db.layer0.internal.SimanticsInternal;
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27 import org.simantics.db.layer0.util.ClipboardUtils;
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28 import org.simantics.db.layer0.util.ModelTransferableGraphSource;
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29 import org.simantics.db.layer0.util.PasteEventHandler;
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30 import org.simantics.db.layer0.util.RemoverUtil;
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31 import org.simantics.db.layer0.util.SimanticsClipboard;
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32 import org.simantics.db.layer0.util.SimanticsClipboard.Representation;
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33 import org.simantics.db.layer0.util.SimanticsKeys;
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34 import org.simantics.db.layer0.util.TransferableGraphConfiguration2.RootSpec;
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35 import org.simantics.graph.db.IImportAdvisor;
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36 import org.simantics.graph.db.IImportAdvisor2;
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37 import org.simantics.graph.db.IImportAdvisor2.RootInfo;
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38 import org.simantics.graph.db.TransferableGraphException;
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39 import org.simantics.graph.db.TransferableGraphSource;
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40 import org.simantics.graph.db.TransferableGraphs;
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41 import org.simantics.graph.representation.Identity;
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42 import org.simantics.graph.representation.Root;
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43 import org.simantics.graph.representation.TransferableGraph1;
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44 import org.simantics.graph.representation.TransferableGraphUtils;
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45 import org.simantics.layer0.Layer0;
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47 public class DefaultPasteHandler extends PasteHandlerAdapter {
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49 protected Resource resource;
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51 public DefaultPasteHandler(Resource resource) {
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52 this.resource = resource;
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55 public static void defaultExecute(TransferableGraph1 tg, Resource resource, IImportAdvisor advisor) throws DatabaseException, TransferableGraphException {
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56 TransferableGraphs.importGraph1(SimanticsInternal.getSession(), tg, advisor);
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59 public static void defaultExecute(WriteGraph graph, TransferableGraph1 tg, Resource resource, IImportAdvisor advisor) throws DatabaseException {
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60 TransferableGraphs.importGraph1(graph, tg, advisor);
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63 public void execute(WriteGraph graph, TransferableGraph1 tg, Resource resource, IImportAdvisor advisor) throws DatabaseException {
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64 defaultExecute(graph, tg, resource, advisor);
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68 * Override this in your inherited class if post processing is done.
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70 public void onPasteBegin(WriteGraph graph) throws DatabaseException {
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74 * Override this in your inherited class if post processing is done
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75 * advisor.getTarget() returns an object under which data is copied
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76 * advisor.getRoot() returns the object which have been pasted.
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77 * @param representations TODO
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79 public void onPaste(WriteGraph graph, IImportAdvisor2 advisor, Set<Representation> representations) throws DatabaseException {
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83 * Override this in your inherited class if post processing is done.
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85 public void onPasteEnd(WriteGraph graph) throws DatabaseException {
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88 public IImportAdvisor2 getAdvisor(ReadGraph graph, TransferableGraph1 tg, Resource target, PasteEventHandler handler) throws DatabaseException {
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90 Collection<Identity> roots = TransferableGraphUtils.getRoots(tg);
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91 if(roots.size() == 1) {
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92 Root root = (Root)roots.iterator().next().definition;
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93 Resource type = graph.getPossibleResource(root.type);
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94 ImportAdvisorFactory factory = graph.getPossibleAdapter(type, ImportAdvisorFactory.class);
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95 if(factory != null) {
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97 return handler.createAdvisor(graph, factory, target);
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99 return factory.create(graph, target, Collections.<String,Object>emptyMap());
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103 return new DefaultPasteImportAdvisor(target);
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106 public Collection<Resource> pasteObject(WriteGraph graph, Set<Representation> object, PasteEventHandler handler) throws DatabaseException {
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107 Collection<Resource> result = new ArrayList<>();
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108 TransferableGraphSource tgs = ClipboardUtils.accept(graph, object, SimanticsKeys.KEY_TRANSFERABLE_GRAPH_SOURCE);
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110 TransferableGraph1 tg = TransferableGraphs.create(graph, tgs);
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111 IImportAdvisor2 advisor = getAdvisor(graph, tg, resource, handler);
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112 execute(graph, tg, resource, advisor);
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113 Collection<RootInfo> roots = advisor.getRootInfo();
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114 if(handler != null) {
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115 for(RootInfo r : roots) handler.postProcess(graph, r.resource);
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117 onPaste(graph, advisor, object);
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118 if(tgs instanceof ModelTransferableGraphSource) {
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120 ModelTransferableGraphSource mtgs = (ModelTransferableGraphSource)tgs;
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122 loop: for(RootSpec spec : mtgs.getConfiguration().roots) {
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123 if(!spec.internal) continue;
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124 for(RootInfo info : roots) {
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125 if(spec.name.equals(info.root.name)) {
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126 result.add(info.resource);
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132 result.addAll(advisor.getRoots());
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137 result.addAll(advisor.getRoots());
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144 public Collection<Resource> pasteFromClipboard(WriteGraph graph, SimanticsClipboard clipboard, PasteEventHandler handler) throws DatabaseException {
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146 Collection<Resource> result = new ArrayList<>();
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148 Map<String,Object> hints = Collections.singletonMap(ClipboardUtils.HINT_TARGET_RESOURCE, resource);
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150 onPasteBegin(graph);
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152 final Set<Resource> cuts = new HashSet<>();
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153 for(Set<Representation> object : clipboard.getContents()) {
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154 Collection<Resource> cut = ClipboardUtils.accept(object, SimanticsKeys.KEY_CUT_RESOURCES);
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155 TransferableGraphSource tg = ClipboardUtils.accept(graph, object, SimanticsKeys.KEY_TRANSFERABLE_GRAPH_SOURCE, hints);
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157 result.addAll(pasteObject(graph, object, handler));
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161 Layer0 L0 = Layer0.getInstance(graph);
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162 for(Resource r : cut) {
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163 graph.deny(r, L0.PartOf);
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164 graph.claim(resource, L0.ConsistsOf, L0.PartOf, r);
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172 if(!cuts.isEmpty()) {
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173 for (Resource cut : cuts)
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174 RemoverUtil.remove(graph, cut);
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181 @SuppressWarnings("rawtypes")
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183 public Object getAdapter(Class adapter) {
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184 if(Resource.class == adapter) return resource;
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