1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.db.layer0.adapter.impl;
14 import java.util.ArrayList;
15 import java.util.Collection;
16 import java.util.Collections;
17 import java.util.HashSet;
21 import org.simantics.db.ReadGraph;
22 import org.simantics.db.Resource;
23 import org.simantics.db.WriteGraph;
24 import org.simantics.db.exception.DatabaseException;
25 import org.simantics.db.layer0.adapter.PasteHandlerAdapter;
26 import org.simantics.db.layer0.internal.SimanticsInternal;
27 import org.simantics.db.layer0.util.ClipboardUtils;
28 import org.simantics.db.layer0.util.ModelTransferableGraphSource;
29 import org.simantics.db.layer0.util.PasteEventHandler;
30 import org.simantics.db.layer0.util.RemoverUtil;
31 import org.simantics.db.layer0.util.SimanticsClipboard;
32 import org.simantics.db.layer0.util.SimanticsClipboard.Representation;
33 import org.simantics.db.layer0.util.SimanticsKeys;
34 import org.simantics.db.layer0.util.TransferableGraphConfiguration2.SeedSpec;
35 import org.simantics.db.layer0.util.TransferableGraphConfiguration2.SeedSpec.SeedSpecType;
36 import org.simantics.graph.db.IImportAdvisor;
37 import org.simantics.graph.db.IImportAdvisor2;
38 import org.simantics.graph.db.IImportAdvisor2.RootInfo;
39 import org.simantics.graph.db.TransferableGraphException;
40 import org.simantics.graph.db.TransferableGraphSource;
41 import org.simantics.graph.db.TransferableGraphs;
42 import org.simantics.graph.representation.Identity;
43 import org.simantics.graph.representation.Root;
44 import org.simantics.graph.representation.TransferableGraph1;
45 import org.simantics.graph.representation.TransferableGraphUtils;
46 import org.simantics.layer0.Layer0;
48 public class DefaultPasteHandler extends PasteHandlerAdapter {
50 protected Resource resource;
52 public DefaultPasteHandler(Resource resource) {
53 this.resource = resource;
56 public static void defaultExecute(TransferableGraph1 tg, Resource resource, IImportAdvisor advisor) throws DatabaseException, TransferableGraphException {
57 TransferableGraphs.importGraph1(SimanticsInternal.getSession(), tg, advisor);
60 public static void defaultExecute(WriteGraph graph, TransferableGraph1 tg, Resource resource, IImportAdvisor advisor) throws DatabaseException {
61 TransferableGraphs.importGraph1(graph, tg, advisor);
64 public void execute(WriteGraph graph, TransferableGraph1 tg, Resource resource, IImportAdvisor advisor) throws DatabaseException {
65 defaultExecute(graph, tg, resource, advisor);
69 * Override this in your inherited class if post processing is done.
71 public void onPasteBegin(WriteGraph graph) throws DatabaseException {
75 * Override this in your inherited class if post processing is done
76 * advisor.getTarget() returns an object under which data is copied
77 * advisor.getRoot() returns the object which have been pasted.
78 * @param representations TODO
80 public void onPaste(WriteGraph graph, IImportAdvisor2 advisor, Set<Representation> representations) throws DatabaseException {
84 * Override this in your inherited class if post processing is done.
86 public void onPasteEnd(WriteGraph graph) throws DatabaseException {
89 public IImportAdvisor2 getAdvisor(ReadGraph graph, TransferableGraph1 tg, Resource target, PasteEventHandler handler) throws DatabaseException {
91 Collection<Identity> roots = TransferableGraphUtils.getRoots(tg);
92 if(roots.size() == 1) {
93 Root root = (Root)roots.iterator().next().definition;
94 Resource type = graph.getPossibleResource(root.type);
95 ImportAdvisorFactory factory = graph.getPossibleAdapter(type, ImportAdvisorFactory.class);
98 return handler.createAdvisor(graph, factory, target);
100 return factory.create(graph, target, Collections.<String,Object>emptyMap());
104 return new DefaultPasteImportAdvisor(target);
107 public Collection<Resource> pasteObject(WriteGraph graph, Set<Representation> object, PasteEventHandler handler) throws DatabaseException {
108 Collection<Resource> result = new ArrayList<>();
109 TransferableGraphSource tgs = ClipboardUtils.accept(graph, object, SimanticsKeys.KEY_TRANSFERABLE_GRAPH_SOURCE);
111 TransferableGraph1 tg = TransferableGraphs.create(graph, tgs);
112 IImportAdvisor2 advisor = getAdvisor(graph, tg, resource, handler);
113 execute(graph, tg, resource, advisor);
114 Collection<RootInfo> roots = advisor.getRootInfo();
115 if(handler != null) {
116 for(RootInfo r : roots) handler.postProcess(graph, r.resource);
118 onPaste(graph, advisor, object);
119 if(tgs instanceof ModelTransferableGraphSource) {
121 ModelTransferableGraphSource mtgs = (ModelTransferableGraphSource)tgs;
123 loop: for(SeedSpec spec : mtgs.getConfiguration().seeds) {
124 if(SeedSpecType.SPECIAL_ROOT.equals(spec.specType)) continue;
125 for(RootInfo info : roots) {
126 if(spec.name.equals(info.root.name)) {
127 result.add(info.resource);
133 result.addAll(advisor.getRoots());
138 result.addAll(advisor.getRoots());
145 public Collection<Resource> pasteFromClipboard(WriteGraph graph, SimanticsClipboard clipboard, PasteEventHandler handler) throws DatabaseException {
147 Collection<Resource> result = new ArrayList<>();
149 Map<String,Object> hints = Collections.singletonMap(ClipboardUtils.HINT_TARGET_RESOURCE, resource);
153 final Set<Resource> cuts = new HashSet<>();
154 for(Set<Representation> object : clipboard.getContents()) {
155 Collection<Resource> cut = ClipboardUtils.accept(object, SimanticsKeys.KEY_CUT_RESOURCES);
156 TransferableGraphSource tg = ClipboardUtils.accept(graph, object, SimanticsKeys.KEY_TRANSFERABLE_GRAPH_SOURCE, hints);
158 result.addAll(pasteObject(graph, object, handler));
162 Layer0 L0 = Layer0.getInstance(graph);
163 for(Resource r : cut) {
164 graph.deny(r, L0.PartOf);
165 graph.claim(resource, L0.ConsistsOf, L0.PartOf, r);
173 if(!cuts.isEmpty()) {
174 for (Resource cut : cuts)
175 RemoverUtil.remove(graph, cut);
182 @SuppressWarnings("rawtypes")
184 public Object getAdapter(Class adapter) {
185 if(Resource.class == adapter) return resource;