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.diagram.synchronization.graph;
16 import org.simantics.db.Resource;
17 import org.simantics.db.WriteGraph;
18 import org.simantics.db.common.utils.Logger;
19 import org.simantics.db.exception.DatabaseException;
20 import org.simantics.diagram.synchronization.CopyAdvisor;
21 import org.simantics.diagram.synchronization.ISynchronizationContext;
22 import org.simantics.diagram.synchronization.SynchronizationException;
25 * @author Tuukka Lehtonen
27 public abstract class GraphCopyAdvisor implements CopyAdvisor {
30 public final Evaluation canCopy(ISynchronizationContext context, Object source, Object sourceContainer, Object targetContainer) {
31 if (!(source instanceof Resource))
32 return Evaluation.NOT_SUPPORTED;
34 // if (!(sourceContainer instanceof Resource))
35 // return Evaluation.NOT_SUPPORTED;
36 // if (!(targetContainer instanceof Resource))
37 // return Evaluation.NOT_SUPPORTED;
39 Resource resource = (Resource) source;
40 Resource sourceCont = (Resource) sourceContainer;
41 Resource targetCont = (Resource) targetContainer;
43 WriteGraph graph = context.get(GraphSynchronizationHints.WRITE_TRANSACTION);
45 return Evaluation.NOT_SUPPORTED;
48 return canCopy(context, graph, resource, sourceCont, targetCont);
49 } catch (DatabaseException e) {
50 Logger.defaultLogError(e);
51 return Evaluation.NOT_SUPPORTED;
56 public final Object copy(ISynchronizationContext context, Object source, Object sourceContainer, Object targetContainer) {
58 if (!(source instanceof Resource))
61 // if (!(sourceContainer instanceof Resource))
63 // if (!(targetContainer instanceof Resource))
66 Resource resource = (Resource) source;
67 Resource sourceCont = (Resource) sourceContainer;
68 Resource targetCont = (Resource) targetContainer;
70 WriteGraph graph = context.get(GraphSynchronizationHints.WRITE_TRANSACTION);
72 throw new SynchronizationException("no write transaction");
74 return copy(context, graph, resource, sourceCont, targetCont);
75 } catch (DatabaseException e) {
76 throw new SynchronizationException(e);
81 public final Object copy(ISynchronizationContext context, Object source, Object sourceContainer, Object targetContainer, Map<Object, Object> map) {
83 if (!(source instanceof Resource))
86 // if (!(sourceContainer instanceof Resource))
88 // if (!(targetContainer instanceof Resource))
91 Resource resource = (Resource) source;
92 Resource sourceCont = (Resource) sourceContainer;
93 Resource targetCont = (Resource) targetContainer;
95 WriteGraph graph = context.get(GraphSynchronizationHints.WRITE_TRANSACTION);
97 throw new SynchronizationException("no write transaction");
99 return copy(context, graph, resource, sourceCont, targetCont, map);
100 } catch (DatabaseException e) {
101 throw new SynchronizationException(e);
106 public final Object cut(ISynchronizationContext context, Object source, Object sourceContainer, Object targetContainer) {
108 if (!(source instanceof Resource))
111 // if (!(sourceContainer instanceof Resource))
113 // if (!(targetContainer instanceof Resource))
116 Resource resource = (Resource) source;
117 Resource sourceCont = (Resource) sourceContainer;
118 Resource targetCont = (Resource) targetContainer;
120 WriteGraph graph = context.get(GraphSynchronizationHints.WRITE_TRANSACTION);
122 throw new SynchronizationException("no write transaction");
125 return cut(context, graph, resource, sourceCont, targetCont);
126 } catch (DatabaseException e) {
127 throw new SynchronizationException(e);
132 public void onFinish(ISynchronizationContext context) {
134 WriteGraph graph = context.get(GraphSynchronizationHints.WRITE_TRANSACTION);
136 throw new SynchronizationException("no write transaction");
139 onFinish(context, graph);
140 } catch (DatabaseException e) {
141 throw new SynchronizationException(e);
146 public void onFinish(ISynchronizationContext context, WriteGraph graph) throws DatabaseException {
150 public abstract Evaluation canCopy(ISynchronizationContext context, WriteGraph graph, Resource source,
151 Resource sourceContainer, Resource targetContainer) throws DatabaseException;
153 public abstract Object copy(ISynchronizationContext context, WriteGraph graph, Resource source,
154 Resource sourceContainer, Resource targetContainer) throws DatabaseException;
156 public abstract Object copy(ISynchronizationContext context, WriteGraph graph, Resource source,
157 Resource sourceContainer, Resource targetContainer, Map<Object, Object> map) throws DatabaseException;
159 public abstract Object cut(ISynchronizationContext context, WriteGraph graph, Resource source,
160 Resource sourceContainer, Resource targetContainer) throws DatabaseException;