svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / feature / impl / FeatureManager.java @ 43558
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40559 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | 40435 | jjdelcerro | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 40559 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40435 | jjdelcerro | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | 40559 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | 40435 | jjdelcerro | *
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21 | 40559 | jjdelcerro | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40435 | jjdelcerro | */
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24 | package org.gvsig.fmap.dal.feature.impl; |
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25 | |||
26 | import java.util.Collection; |
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27 | import java.util.HashMap; |
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28 | import java.util.Iterator; |
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29 | import java.util.LinkedHashMap; |
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30 | import java.util.LinkedHashSet; |
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31 | import java.util.Map; |
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32 | import java.util.NoSuchElementException; |
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33 | |||
34 | import org.gvsig.fmap.dal.exception.DataException; |
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35 | import org.gvsig.fmap.dal.feature.EditableFeature; |
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36 | import org.gvsig.fmap.dal.feature.Feature; |
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37 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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38 | import org.gvsig.fmap.dal.feature.FeatureReference; |
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39 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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40 | import org.gvsig.fmap.dal.feature.FeatureType; |
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41 | import org.gvsig.fmap.dal.feature.impl.expansionadapter.ExpansionAdapter; |
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42 | |||
43 | |||
44 | /**
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45 | * DOCUMENT ME!
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46 | *
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47 | * @author Vicente Caballero Navarro
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48 | */
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49 | public class FeatureManager { |
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50 | private ExpansionAdapter expansionAdapter;
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51 | private Collection deleted = new LinkedHashSet();//<FeatureID> |
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52 | private int deltaSize=0; |
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53 | private Map added = new LinkedHashMap(); |
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54 | private Map addedAndDeleted = new LinkedHashMap(); |
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55 | private HashMap modifiedFromOriginal=new HashMap(); |
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56 | 42639 | dmartinezizquierdo | |
57 | 40435 | jjdelcerro | public FeatureManager(ExpansionAdapter expansionAdapter){
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58 | this.expansionAdapter=expansionAdapter;
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59 | } |
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60 | |||
61 | /**
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62 | 42639 | dmartinezizquierdo | * Deletes feature from this manager.
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63 | * @param id
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64 | 40435 | jjdelcerro | * @return The deleted feature or null if the
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65 | 42639 | dmartinezizquierdo | * feature had not been edited or previously added in the editing session
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66 | 40435 | jjdelcerro | */
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67 | public Feature delete(FeatureReference id) {
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68 | deleted.add(id); |
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69 | Integer num = (Integer) added.remove(id); |
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70 | Feature feature=null;
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71 | if (num == null || num.intValue() == -1) { |
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72 | num = (Integer) modifiedFromOriginal.remove(id);
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73 | if (num != null) { |
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74 | feature = (Feature) expansionAdapter.getObject(num.intValue()); |
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75 | } |
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76 | // if num is null here, method returns null
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77 | }else{
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78 | feature = (Feature) expansionAdapter.getObject(num.intValue()); |
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79 | addedAndDeleted.put(id, num); |
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80 | } |
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81 | deltaSize--; |
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82 | return feature;
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83 | } |
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84 | |||
85 | /**
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86 | * DOCUMENT ME!
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87 | *
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88 | * @param feature DOCUMENT ME!
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89 | */
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90 | public void add(Feature feature) { |
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91 | int pos = expansionAdapter.addObject(feature);
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92 | added.put(feature.getReference(),new Integer(pos)); |
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93 | deleted.remove(feature.getReference()); |
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94 | deltaSize++; |
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95 | } |
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96 | |||
97 | /**
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98 | * DOCUMENT ME!
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99 | * @param id DOCUMENT ME!
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100 | */
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101 | public Feature deleteLastFeature() {
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102 | expansionAdapter.deleteLastObject(); |
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103 | Feature feature=(Feature)expansionAdapter.getObject(expansionAdapter.getSize()-1);
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104 | added.remove(feature.getReference()); |
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105 | modifiedFromOriginal.remove(feature.getReference()); |
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106 | deltaSize--; |
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107 | return feature;
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108 | } |
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109 | |||
110 | /**
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111 | * Returns a Feature of the default type.
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112 | *
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113 | * @param id
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114 | * the feature reference
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115 | * @param store
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116 | * the store to get the feature from
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117 | * @return a Feature with the given reference
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118 | * @throws DataException
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119 | * if there is an error getting the Feature
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120 | */
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121 | public Feature get(FeatureReference id, FeatureStore store)
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122 | throws DataException {
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123 | return get(id, store, null); |
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124 | } |
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125 | |||
126 | /**
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127 | * Returns a Feature of the given type.
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128 | *
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129 | * @param id
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130 | * the feature reference
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131 | * @param store
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132 | * the store to get the feature from
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133 | * @param featureType
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134 | * the type of the feature to return
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135 | * @return a Feature with the given reference
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136 | * @throws DataException
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137 | * if there is an error getting the Feature
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138 | */
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139 | public Feature get(FeatureReference id, FeatureStore store,
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140 | FeatureType featureType) throws DataException {
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141 | // FIXME: y si el featuretype que paso esta modificado.
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142 | // Deberia buscarlo en el featuretypemanager ?
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143 | //
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144 | // Si no existe feature con ese id... ? retorna null ?
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145 | // en EditedDefaultIterator se hace uso de ese comportamiento.
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146 | //
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147 | Integer intNum = ((Integer) added.get(id)); |
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148 | if (intNum == null){ |
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149 | intNum =((Integer) modifiedFromOriginal.get(id));
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150 | 42639 | dmartinezizquierdo | if (intNum == null){ |
151 | 40435 | jjdelcerro | //If the feature has been added and deleted
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152 | intNum = (Integer)addedAndDeleted.get(id);
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153 | if (intNum == null){ |
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154 | return null; |
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155 | } |
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156 | } |
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157 | } |
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158 | int num = intNum.intValue();
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159 | if (num==-1) { |
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160 | return null; |
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161 | } |
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162 | Feature feature=(Feature)expansionAdapter.getObject(num); |
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163 | if (featureType== null){ |
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164 | featureType = store.getDefaultFeatureType(); |
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165 | } |
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166 | return getCorrectFeature(feature, store,featureType);
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167 | } |
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168 | |||
169 | private Feature getCorrectFeature(Feature feature, FeatureStore store,
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170 | FeatureType featureType) throws DataException {
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171 | Iterator iterator=featureType.iterator();
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172 | EditableFeature newFeature=feature.getEditable();//store.createNewFeature(featureType, false);
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173 | FeatureType orgType = feature.getType(); |
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174 | int orgIndex;
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175 | while (iterator.hasNext()) {
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176 | FeatureAttributeDescriptor fad = (FeatureAttributeDescriptor) iterator.next(); |
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177 | orgIndex = orgType.getIndex(fad.getName()); |
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178 | if (orgIndex<0){ |
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179 | continue;
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180 | } |
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181 | if (fad.isAutomatic() || fad.isReadOnly()
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182 | || fad.getEvaluator() != null) {
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183 | continue;
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184 | } |
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185 | Object value = feature.get(orgIndex);
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186 | if (value == null && !fad.allowNull()) { |
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187 | continue;
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188 | } |
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189 | newFeature.set(orgIndex, value); |
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190 | } |
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191 | return newFeature.getNotEditableCopy();
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192 | } |
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193 | |||
194 | /**
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195 | * DOCUMENT ME!
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196 | *
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197 | * @param feature DOCUMENT ME!
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198 | * @param oldFeature DOCUMENT ME!
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199 | */
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200 | public int update(Feature feature, Feature oldFeature) { |
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201 | int oldNum=-1; |
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202 | int num = expansionAdapter.addObject(feature);
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203 | FeatureReference id=feature.getReference(); |
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204 | if (added.containsKey(id)){
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205 | oldNum=((Integer)added.get(id)).intValue();
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206 | added.put(id,new Integer(num)); |
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207 | }else{
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208 | if (modifiedFromOriginal.get(id)!=null) { |
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209 | oldNum=((Integer)modifiedFromOriginal.get(id)).intValue();
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210 | } |
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211 | modifiedFromOriginal.put(id,new Integer(num)); |
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212 | } |
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213 | return oldNum;
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214 | } |
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215 | |||
216 | /**
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217 | * DOCUMENT ME!
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218 | *
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219 | * @param id DOCUMENT ME!
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220 | */
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221 | public void restore(FeatureReference id) { |
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222 | deleted.remove(id); |
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223 | deltaSize++; |
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224 | } |
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225 | public void restore(FeatureReference id,int num){ |
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226 | if (added.containsKey(id)){
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227 | added.put(id,new Integer(num)); |
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228 | }else{
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229 | modifiedFromOriginal.put(id,new Integer(num)); |
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230 | } |
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231 | } |
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232 | |||
233 | |||
234 | public boolean isDeleted(Feature feature){ |
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235 | return deleted.contains(feature.getReference());
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236 | } |
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237 | |||
238 | public boolean isDeleted(FeatureReference featureID) { |
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239 | return deleted.contains(featureID);
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240 | } |
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241 | |||
242 | public void clear() { |
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243 | added.clear(); |
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244 | modifiedFromOriginal.clear(); |
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245 | expansionAdapter.close(); |
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246 | deleted.clear();//<FeatureID>
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247 | addedAndDeleted.clear(); |
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248 | deltaSize=0;
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249 | } |
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250 | |||
251 | |||
252 | public boolean hasChanges() { |
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253 | return added.size()>0 || modifiedFromOriginal.size() > 0 || deleted.size() > 0; |
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254 | } |
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255 | |||
256 | public Iterator getDeleted() { |
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257 | return new DeletedIterator(); |
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258 | |||
259 | } |
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260 | |||
261 | class DeletedIterator implements Iterator { |
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262 | private Boolean hasnext = null; |
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263 | private Iterator iter; |
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264 | private DefaultFeatureReference obj;
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265 | |||
266 | public DeletedIterator(){
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267 | iter = deleted.iterator(); |
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268 | } |
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269 | |||
270 | public boolean hasNext() { |
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271 | if (hasnext != null) { |
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272 | return hasnext.booleanValue();
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273 | } |
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274 | hasnext = Boolean.FALSE;
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275 | while (iter.hasNext()) {
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276 | obj = (DefaultFeatureReference) iter.next(); |
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277 | if (obj.isNewFeature()) {
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278 | continue;
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279 | } |
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280 | hasnext = Boolean.TRUE;
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281 | break;
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282 | } |
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283 | return hasnext.booleanValue();
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284 | } |
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285 | |||
286 | public Object next() { |
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287 | if (!hasNext()) {
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288 | throw new NoSuchElementException(); |
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289 | } |
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290 | |||
291 | hasnext = null;
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292 | return obj;
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293 | } |
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294 | |||
295 | public void remove() { |
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296 | throw new UnsupportedOperationException(); |
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297 | |||
298 | } |
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299 | |||
300 | } |
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301 | |||
302 | public Iterator getInserted() { |
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303 | return new InsertedIterator(); |
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304 | } |
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305 | |||
306 | class InsertedIterator implements Iterator { |
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307 | |||
308 | private Iterator addedIter; |
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309 | private DefaultFeature obj;
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310 | private Boolean hasnext = null; |
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311 | |||
312 | public InsertedIterator(){
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313 | addedIter = added.values().iterator(); |
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314 | } |
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315 | |||
316 | public boolean hasNext() { |
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317 | if (hasnext != null) { |
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318 | return hasnext.booleanValue();
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319 | } |
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320 | hasnext = Boolean.FALSE;
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321 | int pos;
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322 | while (addedIter.hasNext()) {
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323 | pos = ((Integer) addedIter.next()).intValue();
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324 | obj = (DefaultFeature) expansionAdapter.getObject(pos); |
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325 | if (!deleted.contains(obj.getReference())) {
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326 | hasnext = Boolean.TRUE;
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327 | break;
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328 | } |
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329 | } |
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330 | return hasnext.booleanValue();
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331 | } |
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332 | |||
333 | public Object next() { |
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334 | if (!hasNext()) {
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335 | throw new NoSuchElementException(); |
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336 | } |
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337 | hasnext = null;
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338 | return obj.getData();
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339 | } |
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340 | |||
341 | public void remove() { |
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342 | addedIter.remove(); |
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343 | } |
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344 | |||
345 | } |
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346 | public Iterator getUpdated() { |
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347 | return new UpdatedIterator(); |
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348 | } |
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349 | class UpdatedIterator implements Iterator{ |
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350 | private Boolean hasnext = null; |
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351 | private Iterator iter; |
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352 | private DefaultFeature obj;
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353 | private int pos; |
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354 | |||
355 | public UpdatedIterator() {
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356 | iter = expansionAdapter.iterator(); |
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357 | pos = -1;
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358 | } |
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359 | |||
360 | public boolean hasNext() { |
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361 | if (hasnext != null) { |
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362 | return hasnext.booleanValue();
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363 | } |
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364 | hasnext = Boolean.FALSE;
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365 | while (iter.hasNext()) {
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366 | pos++; |
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367 | obj = (DefaultFeature) iter.next(); |
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368 | if (deleted.contains(obj.getReference())){
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369 | continue;
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370 | }else if (!modifiedFromOriginal.containsValue(new Integer(pos))){ |
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371 | continue;
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372 | }else {
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373 | hasnext = Boolean.TRUE;
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374 | break;
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375 | } |
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376 | } |
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377 | return hasnext.booleanValue();
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378 | } |
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379 | |||
380 | public Object next() { |
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381 | if (!hasNext()) {
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382 | throw new NoSuchElementException(); |
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383 | } |
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384 | hasnext = null;
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385 | return obj.getData();
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386 | } |
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387 | |||
388 | public void remove() { |
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389 | throw new UnsupportedOperationException(); |
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390 | |||
391 | } |
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392 | } |
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393 | |||
394 | public boolean hasNews() { |
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395 | return !added.isEmpty();
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396 | } |
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397 | |||
398 | public long getDeltaSize() { |
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399 | return deltaSize;
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400 | } |
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401 | 42639 | dmartinezizquierdo | |
402 | /**
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403 | * Indicates if any operation has comprimised the selected features.
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404 | * @return
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405 | */
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406 | public boolean isSelectionCompromised() { |
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407 | //Only deleted features can change order, as added features are added at the end.
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408 | return deleted.size()>0; |
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409 | } |
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410 | 40435 | jjdelcerro | } |