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.browsing.ui.graph.impl.contributor.viewpoint;
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14 import java.util.Collection;
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15 import java.util.Collections;
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17 import org.simantics.browsing.ui.BuiltinKeys;
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18 import org.simantics.browsing.ui.BuiltinKeys.ViewpointContributionKey;
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19 import org.simantics.browsing.ui.NodeContext;
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20 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
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21 import org.simantics.browsing.ui.Tester;
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22 import org.simantics.browsing.ui.common.NodeContextUtil;
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23 import org.simantics.browsing.ui.content.Contributor;
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24 import org.simantics.browsing.ui.content.ViewpointContribution;
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25 import org.simantics.browsing.ui.content.ViewpointContributionFactory;
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26 import org.simantics.browsing.ui.graph.impl.contribution.ViewpointContributionImpl;
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27 import org.simantics.db.ReadGraph;
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28 import org.simantics.db.exception.DatabaseException;
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29 import org.simantics.db.layer0.exception.InvalidVariableException;
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30 import org.simantics.layer0.Layer0;
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31 import org.simantics.operation.Layer0X;
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32 import org.simantics.utils.ReflectionUtils;
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34 abstract public class ViewpointContributorImpl<T> implements Contributor<ViewpointContributionFactory> {
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36 abstract public Collection<?> getContribution(ReadGraph graph, T input) throws DatabaseException;
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38 abstract public String getViewpointId();
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40 final private Class<?> clazz;
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42 protected Layer0 L0;
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43 protected Layer0X L0X;
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46 public Tester getNodeContextTester() {
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50 public ViewpointContributorImpl() {
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51 clazz = ReflectionUtils.getSingleParameterType(getClass());
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54 public ViewpointContributorImpl(Class<?> clazz) {
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59 public ViewpointContributionFactory getFactory() {
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61 return new ViewpointContributionFactory() {
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64 public String getViewpointId() {
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65 return ViewpointContributorImpl.this.getViewpointId();
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69 public ViewpointContribution create(final PrimitiveQueryUpdater updater, NodeContext context, final ViewpointContributionKey key) {
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71 return new ViewpointContributionImpl(updater, context, key) {
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73 @SuppressWarnings("unchecked")
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75 public Collection<NodeContext> children(ReadGraph graph, NodeContext context) throws DatabaseException {
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78 T input = (T)context.getConstant(BuiltinKeys.INPUT);
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79 L0 = Layer0.getInstance(graph);
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80 L0X = Layer0X.getInstance(graph);
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81 return NodeContextUtil.toContextCollectionWithInput(ViewpointContributorImpl.this, ViewpointContributorImpl.this.getContribution(graph, input));
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82 } catch (InvalidVariableException e) {
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83 return Collections.emptyList();
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89 public Tester getNodeContextTester() {
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90 return ViewpointContributorImpl.this.getNodeContextTester();
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94 public Class<?> getInputClass() {
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95 return ViewpointContributorImpl.this.getInputClass();
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107 public Class<?> getInputClass() {
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