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;
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14 import java.util.Collection;
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15 import java.util.function.Consumer;
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17 import org.simantics.browsing.ui.BuiltinKeys;
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18 import org.simantics.browsing.ui.BuiltinKeys.ViewpointKey;
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19 import org.simantics.browsing.ui.DataSource;
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20 import org.simantics.browsing.ui.NodeContext;
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21 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
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22 import org.simantics.browsing.ui.common.NodeContextUtil;
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23 import org.simantics.browsing.ui.common.viewpoints.LazyContainerViewpoint;
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24 import org.simantics.browsing.ui.content.Viewpoint;
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25 import org.simantics.browsing.ui.content.ViewpointFactory;
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26 import org.simantics.db.ReadGraph;
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27 import org.simantics.db.Resource;
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28 import org.simantics.db.common.utils.OrderedSetUtils;
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29 import org.simantics.db.exception.DatabaseException;
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31 public class OrderedSetViewpointFactory implements ViewpointFactory {
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34 public Viewpoint create(final PrimitiveQueryUpdater updater, final NodeContext context, final ViewpointKey key) {
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35 assert updater != null;
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36 assert context != null;
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38 final LazyContainerViewpoint result = new LazyContainerViewpoint();
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40 DataSource<ReadGraph> source = updater.getDataSource(ReadGraph.class);
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44 final Resource inputResource = (Resource) context.getConstant(BuiltinKeys.INPUT);
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45 assert inputResource != null;
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47 source.schedule(new Consumer<ReadGraph>() {
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49 public void accept(ReadGraph source) {
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51 Collection<Resource> children = OrderedSetUtils.toList(source, inputResource);
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52 NodeContext[] resultContexts = NodeContextUtil.toContextsWithInput(children);
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53 result.setChildren(updater, resultContexts);
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54 result.setHasChildren(resultContexts.length > 0);
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56 updater.scheduleReplace(context, key, result);
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57 } catch (DatabaseException e) {
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58 e.printStackTrace();
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67 public String toString() {
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