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.request;
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14 import java.util.ArrayList;
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15 import java.util.Collection;
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16 import java.util.HashMap;
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17 import java.util.HashSet;
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18 import java.util.Map;
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20 import org.simantics.db.Resource;
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21 import org.simantics.db.WriteGraph;
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22 import org.simantics.db.exception.DatabaseException;
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23 import org.simantics.db.layer0.adapter.Template;
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24 import org.simantics.operation.Layer0X;
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27 * Applies templates to an instance.
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28 * @author Hannu Niemist�
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30 public class ApplyTemplatesRequest {
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31 Map<String, Object> parameters;
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32 Collection<Resource> contexts;
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34 public ApplyTemplatesRequest(Map<String, Object> parameters,
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35 Collection<Resource> contexts) {
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36 this.parameters = parameters;
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37 this.contexts = contexts;
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40 public ApplyTemplatesRequest(Map<String, Object> parameters) {
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41 this(parameters, new ArrayList<Resource>(2));
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44 public ApplyTemplatesRequest() {
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45 this(new HashMap<String, Object>());
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48 public void perform(WriteGraph g, Resource resource) throws DatabaseException {
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49 Layer0X L0X = Layer0X.getInstance(g);
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51 parameters.put("", resource);
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53 // Use default context if no other contexts have been defined
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54 if(contexts.isEmpty())
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55 contexts.add(L0X.HasTemplate);
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57 // Collect templates
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58 HashSet<Resource> templates = new HashSet<Resource>();
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59 for(Resource context : contexts)
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60 templates.addAll(g.getObjects(resource, context));
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63 for(Resource template : templates)
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64 g.adapt(template, Template.class).apply(g, parameters);
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67 public void addContext(Resource context) {
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68 contexts.add(context);
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71 public void addParameter(String key, Object value) {
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72 parameters.put(key, value);
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75 public <T> T getParameter(String key) {
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76 return (T)parameters.get(key);
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79 public Map<String,Object> getParameters() {
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