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1 package org.mpi.openmind.repository.utils;
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2
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3 import java.text.DecimalFormat;
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4 import java.util.ArrayList;
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5 import java.util.Arrays;
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6 import java.util.HashSet;
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7 import java.util.List;
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8 import java.util.Set;
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9
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10 import org.apache.commons.lang.StringUtils;
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11 import org.mpi.openmind.cache.WrapperService;
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12 import org.mpi.openmind.repository.bo.Attribute;
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13 import org.mpi.openmind.repository.bo.Entity;
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14 import org.mpi.openmind.repository.bo.ViewerAttribute;
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15 import org.mpi.openmind.repository.utils.ismi.ISMICalendar;
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16
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17 public class OMUtils {
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18
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19 private static String SOURCE = "source";
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20 private static String TARGET = "target";
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21
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22
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23 public static List<String> resolveQuery(Long entBaseId, String query, WrapperService ws, Integer contentType) throws Exception{
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24
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25 List<String> rs = new ArrayList<String>();
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26 String[] array = query.split("&");
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27
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28 for(String element : array){
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29 String[] array0 = element.split("\\|");
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30 List<String> terms = new ArrayList<String>(Arrays.asList(array0));
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31
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32 rs.addAll(new ArrayList<String>(entityQuery(entBaseId, terms.remove(0), terms, ws, contentType)));
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33 }
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34
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35 return rs;
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36 }
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37
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38 private static Set<String> entityQuery(Long currentEntId, String currentTerm, List<String> terms, WrapperService ws, Integer contentType) throws Exception{
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39 Set<String> rs;
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40
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41 if(terms.size() == 0){
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42 rs = new HashSet<String>();
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43
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44 String[] array = currentTerm.split(":");
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45 if(array.length > 1){
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46 if(StringUtils.equals(array[1], "id")){
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47 rs.add(currentEntId.toString());
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48 }else{
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49 //returns attribute
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50 Attribute att = ws.getAttributeByName(currentEntId, array[1]);
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51 if(att != null)
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52 rs.add(att.getValue());
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53 }
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54 }else{
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55 //returns ownvalue
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56 Entity currentEntity = ws.getEntityById(currentEntId);
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57 String ownValue = currentEntity.getOwnValue();
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58 if(contentType == null || contentType.equals(ViewerAttribute.CONTENT_TEXT)){
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59 //nothing
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60 }else if(contentType.equals(ViewerAttribute.CONTENT_DATE)){
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61 ISMICalendar cal = new ISMICalendar(ownValue);
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62 ownValue = cal.getCalendarAsHtml();
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63 }
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64 rs.add(ownValue);
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65
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66 }
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67 }else{
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68
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69 rs = relationQuery(currentEntId, terms.remove(0), new ArrayList<String>(terms), ws, contentType);
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70 }
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71 return rs;
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72 }
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73
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74 private static Set<String> relationQuery(Long currentEntId, String currentTerm, List<String> terms, WrapperService ws, Integer contentType) throws Exception{
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75 Set<String> rs = new HashSet<String>();
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76
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77 String[] array = currentTerm.split(":");
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78 if(array.length != 2 &&
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79 (!SOURCE.equals(array[0]) || !TARGET.equals(array[0]))){
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80 throw new Exception("Relation item has not valid format: " + currentTerm);
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81 }
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82
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83 if(terms.size() == 0){
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84 throw new Exception("ViewerAttribute ended with a relation term: " + currentTerm);
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85 }
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86
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87 String nextTerm = terms.get(0);
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88 String classNextTerm = nextTerm.split(":")[0];
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89
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90 terms.remove(0);
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91 List<Entity> nextList;
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92 if(SOURCE.equals(array[0])){
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93 nextList = ws.getTargetsForSourceRelation(currentEntId, array[1], classNextTerm, -1);
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94
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95 }else{
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96 nextList = ws.getSourcesForTargetRelation(currentEntId, array[1], classNextTerm, -1);
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97 }
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98
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99 for(Entity ent : nextList){
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100 Set<String> rs0 = entityQuery(ent.getId(), nextTerm, new ArrayList<String>(terms), ws, contentType);
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101 rs.addAll(rs0);
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102 }
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103
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104 return rs;
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105 }
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106
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38
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107 /**
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108 * Returns if the two Longs are equal or both null.
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109 *
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110 * @param one
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111 * @param two
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112 * @return
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113 */
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1
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114 public static boolean equals(Long one, Long two){
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115 if(one == null && two == null){
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116 return true;
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117 }
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118
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119 if(one == null || two == null){
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120 return false;
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121 }
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122
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123 return one.equals(two);
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124 }
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125
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126
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127 public static String percentage(int index, int total) {
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128 double p = (100 * (double) index) / (double) total;
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129 DecimalFormat df = new DecimalFormat("#.#");
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130 return df.format(p);
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131 }
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132
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133 }
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