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.RootSpec;
35 import org.simantics.graph.db.IImportAdvisor;
36 import org.simantics.graph.db.IImportAdvisor2;
37 import org.simantics.graph.db.IImportAdvisor2.RootInfo;
38 import org.simantics.graph.db.TransferableGraphException;
39 import org.simantics.graph.db.TransferableGraphSource;
40 import org.simantics.graph.db.TransferableGraphs;
41 import org.simantics.graph.representation.Identity;
42 import org.simantics.graph.representation.Root;
43 import org.simantics.graph.representation.TransferableGraph1;
44 import org.simantics.graph.representation.TransferableGraphUtils;
45 import org.simantics.layer0.Layer0;
47 public class DefaultPasteHandler extends PasteHandlerAdapter {
49 protected Resource resource;
51 public DefaultPasteHandler(Resource resource) {
52 this.resource = resource;
55 public static void defaultExecute(TransferableGraph1 tg, Resource resource, IImportAdvisor advisor) throws DatabaseException, TransferableGraphException {
56 TransferableGraphs.importGraph1(SimanticsInternal.getSession(), tg, advisor);
59 public static void defaultExecute(WriteGraph graph, TransferableGraph1 tg, Resource resource, IImportAdvisor advisor) throws DatabaseException {
60 TransferableGraphs.importGraph1(graph, tg, advisor);
63 public void execute(WriteGraph graph, TransferableGraph1 tg, Resource resource, IImportAdvisor advisor) throws DatabaseException {
64 defaultExecute(graph, tg, resource, advisor);
68 * Override this in your inherited class if post processing is done.
70 public void onPasteBegin(WriteGraph graph) throws DatabaseException {
74 * Override this in your inherited class if post processing is done
75 * advisor.getTarget() returns an object under which data is copied
76 * advisor.getRoot() returns the object which have been pasted.
77 * @param representations TODO
79 public void onPaste(WriteGraph graph, IImportAdvisor2 advisor, Set<Representation> representations) throws DatabaseException {
83 * Override this in your inherited class if post processing is done.
85 public void onPasteEnd(WriteGraph graph) throws DatabaseException {
88 public IImportAdvisor2 getAdvisor(ReadGraph graph, TransferableGraph1 tg, Resource target, PasteEventHandler handler) throws DatabaseException {
90 Collection<Identity> roots = TransferableGraphUtils.getRoots(tg);
91 if(roots.size() == 1) {
92 Root root = (Root)roots.iterator().next().definition;
93 Resource type = graph.getPossibleResource(root.type);
94 ImportAdvisorFactory factory = graph.getPossibleAdapter(type, ImportAdvisorFactory.class);
97 return handler.createAdvisor(graph, factory, target);
99 return factory.create(graph, target, Collections.<String,Object>emptyMap());
103 return new DefaultPasteImportAdvisor(target);
106 public Collection<Resource> pasteObject(WriteGraph graph, Set<Representation> object, PasteEventHandler handler) throws DatabaseException {
107 Collection<Resource> result = new ArrayList<>();
108 TransferableGraphSource tgs = ClipboardUtils.accept(graph, object, SimanticsKeys.KEY_TRANSFERABLE_GRAPH_SOURCE);
110 TransferableGraph1 tg = TransferableGraphs.create(graph, tgs);
111 IImportAdvisor2 advisor = getAdvisor(graph, tg, resource, handler);
112 execute(graph, tg, resource, advisor);
113 Collection<RootInfo> roots = advisor.getRootInfo();
114 if(handler != null) {
115 for(RootInfo r : roots) handler.postProcess(graph, r.resource);
117 onPaste(graph, advisor, object);
118 if(tgs instanceof ModelTransferableGraphSource) {
120 ModelTransferableGraphSource mtgs = (ModelTransferableGraphSource)tgs;
122 loop: for(RootSpec spec : mtgs.getConfiguration().roots) {
123 if(!spec.internal) continue;
124 for(RootInfo info : roots) {
125 if(spec.name.equals(info.root.name)) {
126 result.add(info.resource);
132 result.addAll(advisor.getRoots());
137 result.addAll(advisor.getRoots());
144 public Collection<Resource> pasteFromClipboard(WriteGraph graph, SimanticsClipboard clipboard, PasteEventHandler handler) throws DatabaseException {
146 Collection<Resource> result = new ArrayList<>();
148 Map<String,Object> hints = Collections.singletonMap(ClipboardUtils.HINT_TARGET_RESOURCE, resource);
152 final Set<Resource> cuts = new HashSet<>();
153 for(Set<Representation> object : clipboard.getContents()) {
154 Collection<Resource> cut = ClipboardUtils.accept(object, SimanticsKeys.KEY_CUT_RESOURCES);
155 TransferableGraphSource tg = ClipboardUtils.accept(graph, object, SimanticsKeys.KEY_TRANSFERABLE_GRAPH_SOURCE, hints);
157 result.addAll(pasteObject(graph, object, handler));
161 Layer0 L0 = Layer0.getInstance(graph);
162 for(Resource r : cut) {
163 graph.deny(r, L0.PartOf);
164 graph.claim(resource, L0.ConsistsOf, L0.PartOf, r);
172 if(!cuts.isEmpty()) {
173 for (Resource cut : cuts)
174 RemoverUtil.remove(graph, cut);
181 @SuppressWarnings("rawtypes")
183 public Object getAdapter(Class adapter) {
184 if(Resource.class == adapter) return resource;