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.db.layer0.genericrelation;
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14 import org.simantics.db.ReadGraph;
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15 import org.simantics.db.Resource;
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16 import org.simantics.db.common.utils.Logger;
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17 import org.simantics.db.exception.DatabaseException;
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18 import org.simantics.db.layer0.adapter.GenericRelationIndex;
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19 import org.simantics.db.service.QueryControl;
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20 import org.simantics.operation.Layer0X;
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21 import org.simantics.scl.runtime.function.FunctionImpl4;
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22 import org.simantics.scl.runtime.function.UnsaturatedFunction2;
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26 * (ReadGraph, Resource model, String query) -> List<Map<String, Object>>
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27 * (ReadGraph, Resource model, String query, Integer maxResults) -> List<Map<String, Object>>
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29 * @author Antti Villberg
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31 public class Dependencies extends FunctionImpl4<ReadGraph, Resource, String, Integer, Object> {
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33 public static final String FIELD_MODEL = "Model";
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34 public static final String FIELD_PARENT = "Parent";
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35 public static final String FIELD_RESOURCE = "Resource";
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36 public static final String FIELD_NAME = "Name";
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37 public static final String FIELD_TYPES = "Types";
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38 public static final String FIELD_GUID = "GUID";
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40 protected Resource getIndexRelation(ReadGraph graph) {
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41 return Layer0X.getInstance(graph).DependenciesRelation;
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44 protected static String getBindingPattern() {
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49 public Object apply(ReadGraph p0, Resource p1) {
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50 return new UnsaturatedFunction2(this, p0, p1);
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54 public Object apply(ReadGraph p0, Resource p1, String p2) {
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55 return apply(p0, p1, p2, Integer.MAX_VALUE);
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59 public Object apply(ReadGraph graph, final Resource model, final String query, Integer _maxResults) {
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63 final GenericRelationIndex index = graph.adapt(getIndexRelation(graph), GenericRelationIndex.class);
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66 graph.syncRequest(new ExternalRequest(index, model));
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68 final int maxResults = _maxResults != null ? _maxResults : Integer.MAX_VALUE;
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70 QueryControl qc = graph.getService(QueryControl.class);
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71 return index.query(qc.getIndependentGraph(graph), query, getBindingPattern(), new Object[] { model }, maxResults);
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73 } catch (DatabaseException e) {
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74 Logger.defaultLogError(e);
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