root / branches / v2_0_0_prep / libraries / libFMap_dal / src / org / gvsig / fmap / dal / feature / impl / FeatureManager.java @ 36366
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1 | 19399 | vcaballero | |
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2 | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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3 | *
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4 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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5 | *
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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 | * as published by the Free Software Foundation; either version 2
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9 | * 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 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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19 | *
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20 | * For more information, contact:
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21 | *
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22 | * Generalitat Valenciana
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23 | * Conselleria d'Infraestructures i Transport
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24 | * Av. Blasco Ib??ez, 50
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25 | * 46010 VALENCIA
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26 | * SPAIN
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27 | *
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28 | * +34 963862235
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29 | * gvsig@gva.es
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30 | * www.gvsig.gva.es
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31 | *
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32 | * or
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33 | *
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34 | * IVER T.I. S.A
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35 | * Salamanca 50
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36 | * 46005 Valencia
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37 | * Spain
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38 | *
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39 | * +34 963163400
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40 | * dac@iver.es
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41 | */
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42 | |||
43 | 24496 | jmvivo | package org.gvsig.fmap.dal.feature.impl; |
44 | 19399 | vcaballero | |
45 | import java.util.ArrayList; |
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46 | import java.util.HashMap; |
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47 | 20469 | vcaballero | import java.util.Iterator; |
48 | 28421 | jmvivo | import java.util.LinkedHashMap; |
49 | import java.util.Map; |
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50 | 27741 | vcaballero | import java.util.NoSuchElementException; |
51 | 19399 | vcaballero | |
52 | 24505 | jmvivo | import org.gvsig.fmap.dal.exception.DataException; |
53 | 24496 | jmvivo | import org.gvsig.fmap.dal.feature.EditableFeature; |
54 | import org.gvsig.fmap.dal.feature.Feature; |
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55 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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56 | import org.gvsig.fmap.dal.feature.FeatureReference; |
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57 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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58 | import org.gvsig.fmap.dal.feature.FeatureType; |
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59 | import org.gvsig.fmap.dal.feature.impl.expansionadapter.ExpansionAdapter; |
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60 | 19399 | vcaballero | |
61 | |||
62 | /**
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63 | * DOCUMENT ME!
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64 | *
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65 | * @author Vicente Caballero Navarro
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66 | */
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67 | public class FeatureManager { |
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68 | 24132 | vcaballero | private ExpansionAdapter expansionAdapter;
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69 | 24145 | vcaballero | private ArrayList deleted = new ArrayList();//<FeatureID> |
70 | 24132 | vcaballero | private int deltaSize=0; |
71 | 28421 | jmvivo | private Map added = new LinkedHashMap(); |
72 | 36366 | jpiera | private Map addedAndDeleted = new LinkedHashMap(); |
73 | 24145 | vcaballero | private HashMap modifiedFromOriginal=new HashMap(); |
74 | 36366 | jpiera | |
75 | public FeatureManager(ExpansionAdapter expansionAdapter){
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76 | 19399 | vcaballero | this.expansionAdapter=expansionAdapter;
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77 | } |
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78 | |||
79 | 24132 | vcaballero | public Feature delete(FeatureReference id) {
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80 | 24145 | vcaballero | deleted.add(id); |
81 | 27292 | jmvivo | Integer num = (Integer) added.remove(id); |
82 | 27233 | vcaballero | Feature feature=null;
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83 | 27292 | jmvivo | if (num == null || num.intValue() == -1) { |
84 | 27233 | vcaballero | feature = (Feature)modifiedFromOriginal.remove(id); |
85 | }else{
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86 | 27292 | jmvivo | feature = (Feature) expansionAdapter.getObject(num.intValue()); |
87 | 36366 | jpiera | addedAndDeleted.put(id, num); |
88 | 24181 | jjdelcerro | } |
89 | 24132 | vcaballero | deltaSize--; |
90 | return feature;
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91 | 19399 | vcaballero | } |
92 | |||
93 | /**
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94 | * DOCUMENT ME!
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95 | *
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96 | * @param feature DOCUMENT ME!
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97 | */
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98 | 24132 | vcaballero | public void add(Feature feature) { |
99 | 25751 | vcaballero | int pos = expansionAdapter.addObject(feature);
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100 | 24145 | vcaballero | added.put(feature.getReference(),new Integer(pos)); |
101 | 27233 | vcaballero | deleted.remove(feature.getReference()); |
102 | 24132 | vcaballero | deltaSize++; |
103 | 19399 | vcaballero | } |
104 | |||
105 | /**
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106 | * DOCUMENT ME!
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107 | * @param id DOCUMENT ME!
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108 | */
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109 | 27233 | vcaballero | public Feature deleteLastFeature() {
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110 | expansionAdapter.deleteLastObject(); |
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111 | Feature feature=(Feature)expansionAdapter.getObject(expansionAdapter.getSize()-1);
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112 | added.remove(feature.getReference()); |
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113 | modifiedFromOriginal.remove(feature.getReference()); |
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114 | deltaSize--; |
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115 | return feature;
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116 | } |
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117 | 19399 | vcaballero | |
118 | /**
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119 | 24015 | cordinyana | * Returns a Feature of the default type.
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120 | 24017 | jjdelcerro | *
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121 | 24015 | cordinyana | * @param id
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122 | * the feature reference
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123 | * @param store
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124 | * the store to get the feature from
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125 | * @return a Feature with the given reference
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126 | * @throws DataException
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127 | * if there is an error getting the Feature
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128 | 19399 | vcaballero | */
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129 | 24132 | vcaballero | public Feature get(FeatureReference id, FeatureStore store)
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130 | 24015 | cordinyana | throws DataException {
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131 | 24132 | vcaballero | return get(id, store, null); |
132 | 24015 | cordinyana | } |
133 | |||
134 | /**
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135 | * Returns a Feature of the given type.
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136 | 24017 | jjdelcerro | *
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137 | 24015 | cordinyana | * @param id
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138 | * the feature reference
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139 | * @param store
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140 | * the store to get the feature from
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141 | * @param featureType
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142 | * the type of the feature to return
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143 | * @return a Feature with the given reference
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144 | * @throws DataException
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145 | * if there is an error getting the Feature
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146 | */
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147 | 24132 | vcaballero | public Feature get(FeatureReference id, FeatureStore store,
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148 | 23775 | jjdelcerro | FeatureType featureType) throws DataException {
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149 | 23820 | jjdelcerro | // FIXME: y si el featuretype que paso esta modificado.
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150 | // Deberia buscarlo en el featuretypemanager ?
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151 | //
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152 | // Si no existe feature con ese id... ? retorna null ?
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153 | // en EditedDefaultIterator se hace uso de ese comportamiento.
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154 | //
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155 | 36366 | jpiera | Integer intNum = ((Integer) added.get(id)); |
156 | 20848 | jmvivo | if (intNum == null){ |
157 | 24145 | vcaballero | intNum =((Integer) modifiedFromOriginal.get(id));
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158 | 36366 | jpiera | if (intNum == null){ |
159 | //If the feature has been added and deleted
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160 | intNum = (Integer)addedAndDeleted.get(id);
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161 | if (intNum == null){ |
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162 | return null; |
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163 | } |
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164 | 24132 | vcaballero | } |
165 | 20848 | jmvivo | } |
166 | int num = intNum.intValue();
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167 | 26005 | jmvivo | if (num==-1) { |
168 | return null; |
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169 | } |
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170 | 25751 | vcaballero | Feature feature=(Feature)expansionAdapter.getObject(num); |
171 | 21069 | jmvivo | if (featureType== null){ |
172 | featureType = store.getDefaultFeatureType(); |
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173 | } |
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174 | 25751 | vcaballero | return getCorrectFeature(feature, store,featureType);
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175 | 19399 | vcaballero | } |
176 | |||
177 | 25751 | vcaballero | private Feature getCorrectFeature(Feature feature, FeatureStore store,
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178 | 23775 | jjdelcerro | FeatureType featureType) throws DataException {
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179 | 21069 | jmvivo | Iterator iterator=featureType.iterator();
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180 | 25751 | vcaballero | EditableFeature newFeature=feature.getEditable();//store.createNewFeature(featureType, false);
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181 | FeatureType orgType = feature.getType(); |
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182 | 23775 | jjdelcerro | int orgIndex;
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183 | 20469 | vcaballero | while (iterator.hasNext()) {
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184 | 21045 | jmvivo | FeatureAttributeDescriptor fad = (FeatureAttributeDescriptor) iterator.next(); |
185 | 23775 | jjdelcerro | orgIndex = orgType.getIndex(fad.getName()); |
186 | if (orgIndex<0){ |
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187 | continue;
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188 | 20469 | vcaballero | } |
189 | 28908 | jmvivo | if (fad.isAutomatic() || fad.isReadOnly()
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190 | || fad.getEvaluator() != null) {
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191 | continue;
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192 | } |
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193 | Object value = feature.get(orgIndex);
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194 | if (value == null && !fad.allowNull()) { |
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195 | continue;
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196 | } |
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197 | 35953 | jpiera | newFeature.set(orgIndex, value); |
198 | 20469 | vcaballero | } |
199 | 26005 | jmvivo | return newFeature.getNotEditableCopy();
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200 | 20469 | vcaballero | } |
201 | |||
202 | /**
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203 | 19399 | vcaballero | * DOCUMENT ME!
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204 | *
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205 | * @param feature DOCUMENT ME!
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206 | * @param oldFeature DOCUMENT ME!
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207 | */
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208 | 24132 | vcaballero | public int update(Feature feature, Feature oldFeature) { |
209 | int oldNum=-1; |
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210 | 25781 | vcaballero | int num = expansionAdapter.addObject(feature);
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211 | 24132 | vcaballero | FeatureReference id=feature.getReference(); |
212 | 24145 | vcaballero | if (added.containsKey(id)){
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213 | oldNum=((Integer)added.get(id)).intValue();
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214 | added.put(id,new Integer(num)); |
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215 | 24132 | vcaballero | }else{
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216 | 26005 | jmvivo | if (modifiedFromOriginal.get(id)!=null) { |
217 | oldNum=((Integer)modifiedFromOriginal.get(id)).intValue();
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218 | } |
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219 | 24145 | vcaballero | modifiedFromOriginal.put(id,new Integer(num)); |
220 | 24132 | vcaballero | } |
221 | return oldNum;
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222 | 19399 | vcaballero | } |
223 | |||
224 | /**
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225 | * DOCUMENT ME!
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226 | *
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227 | * @param id DOCUMENT ME!
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228 | */
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229 | 24132 | vcaballero | public void restore(FeatureReference id) { |
230 | 24145 | vcaballero | deleted.remove(id); |
231 | 24132 | vcaballero | deltaSize++; |
232 | 19399 | vcaballero | } |
233 | 24132 | vcaballero | public void restore(FeatureReference id,int num){ |
234 | 24145 | vcaballero | if (added.containsKey(id)){
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235 | added.put(id,new Integer(num)); |
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236 | 24132 | vcaballero | }else{
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237 | 24145 | vcaballero | modifiedFromOriginal.put(id,new Integer(num)); |
238 | 24132 | vcaballero | } |
239 | 19399 | vcaballero | } |
240 | |||
241 | 24132 | vcaballero | |
242 | 21045 | jmvivo | public boolean isDeleted(Feature feature){ |
243 | 24145 | vcaballero | return deleted.contains(feature.getReference());
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244 | 19399 | vcaballero | } |
245 | |||
246 | 23842 | jjdelcerro | public boolean isDeleted(FeatureReference featureID) { |
247 | 24145 | vcaballero | return deleted.contains(featureID);
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248 | 23820 | jjdelcerro | } |
249 | |||
250 | 19488 | vcaballero | public void clear() { |
251 | 24145 | vcaballero | added.clear(); |
252 | modifiedFromOriginal.clear(); |
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253 | 19488 | vcaballero | expansionAdapter.close(); |
254 | 24145 | vcaballero | deleted.clear();//<FeatureID>
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255 | 36366 | jpiera | addedAndDeleted.clear(); |
256 | 24132 | vcaballero | deltaSize=0;
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257 | 19488 | vcaballero | } |
258 | 19399 | vcaballero | |
259 | 19488 | vcaballero | |
260 | 23820 | jjdelcerro | public boolean hasChanges() { |
261 | 24145 | vcaballero | return added.size()>0 || modifiedFromOriginal.size() > 0 || deleted.size() > 0; |
262 | 23820 | jjdelcerro | } |
263 | |||
264 | 24145 | vcaballero | public Iterator getDeleted() { |
265 | return new DeletedIterator(); |
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266 | 24132 | vcaballero | |
267 | 23820 | jjdelcerro | } |
268 | |||
269 | 28316 | jmvivo | class DeletedIterator implements Iterator { |
270 | private Boolean hasnext = null; |
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271 | private Iterator iter; |
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272 | 28660 | jmvivo | private DefaultFeatureReference obj;
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273 | 24145 | vcaballero | |
274 | 28316 | jmvivo | public DeletedIterator(){
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275 | 28660 | jmvivo | iter = deleted.iterator(); |
276 | 24145 | vcaballero | } |
277 | |||
278 | 28316 | jmvivo | public boolean hasNext() { |
279 | if (hasnext != null) { |
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280 | return hasnext.booleanValue();
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281 | } |
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282 | hasnext = Boolean.FALSE;
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283 | while (iter.hasNext()) {
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284 | 28660 | jmvivo | obj = (DefaultFeatureReference) iter.next(); |
285 | if (obj.isNewFeature()) {
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286 | continue;
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287 | 28316 | jmvivo | } |
288 | 28660 | jmvivo | hasnext = Boolean.TRUE;
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289 | break;
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290 | 28316 | jmvivo | } |
291 | return hasnext.booleanValue();
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292 | 24145 | vcaballero | } |
293 | 25751 | vcaballero | |
294 | 28316 | jmvivo | public Object next() { |
295 | if (!hasNext()) {
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296 | throw new NoSuchElementException(); |
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297 | 24145 | vcaballero | } |
298 | 28316 | jmvivo | |
299 | hasnext = null;
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300 | 28660 | jmvivo | return obj;
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301 | 24145 | vcaballero | } |
302 | |||
303 | 28316 | jmvivo | public void remove() { |
304 | throw new UnsupportedOperationException(); |
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305 | 24145 | vcaballero | |
306 | 28316 | jmvivo | } |
307 | |||
308 | 24141 | vcaballero | } |
309 | 28316 | jmvivo | |
310 | 24145 | vcaballero | public Iterator getInserted() { |
311 | return new InsertedIterator(); |
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312 | 24141 | vcaballero | } |
313 | 27741 | vcaballero | |
314 | 28316 | jmvivo | class InsertedIterator implements Iterator { |
315 | 24145 | vcaballero | |
316 | 28316 | jmvivo | private Iterator addedIter; |
317 | private DefaultFeature obj;
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318 | private Boolean hasnext = null; |
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319 | 27741 | vcaballero | |
320 | 28316 | jmvivo | public InsertedIterator(){
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321 | addedIter = added.values().iterator(); |
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322 | } |
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323 | |||
324 | public boolean hasNext() { |
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325 | if (hasnext != null) { |
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326 | return hasnext.booleanValue();
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327 | } |
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328 | hasnext = Boolean.FALSE;
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329 | int pos;
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330 | while (addedIter.hasNext()) {
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331 | pos = ((Integer) addedIter.next()).intValue();
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332 | obj = (DefaultFeature) expansionAdapter.getObject(pos); |
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333 | if (!deleted.contains(obj.getReference())) {
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334 | hasnext = Boolean.TRUE;
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335 | break;
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336 | 24145 | vcaballero | } |
337 | } |
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338 | 28316 | jmvivo | return hasnext.booleanValue();
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339 | 24145 | vcaballero | } |
340 | |||
341 | public Object next() { |
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342 | 28316 | jmvivo | if (!hasNext()) {
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343 | 27741 | vcaballero | throw new NoSuchElementException(); |
344 | 24145 | vcaballero | } |
345 | 28316 | jmvivo | hasnext = null;
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346 | 27741 | vcaballero | return obj.getData();
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347 | 24145 | vcaballero | } |
348 | |||
349 | public void remove() { |
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350 | throw new UnsupportedOperationException(); |
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351 | |||
352 | } |
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353 | 28316 | jmvivo | |
354 | 24145 | vcaballero | } |
355 | public Iterator getUpdated() { |
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356 | return new UpdatedIterator(); |
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357 | } |
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358 | class UpdatedIterator implements Iterator{ |
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359 | 28316 | jmvivo | private Boolean hasnext = null; |
360 | private Iterator iter; |
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361 | private DefaultFeature obj;
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362 | private int pos; |
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363 | 24145 | vcaballero | |
364 | 28316 | jmvivo | public UpdatedIterator() {
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365 | iter = expansionAdapter.iterator(); |
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366 | pos = -1;
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367 | } |
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368 | |||
369 | 24145 | vcaballero | public boolean hasNext() { |
370 | 28316 | jmvivo | if (hasnext != null) { |
371 | return hasnext.booleanValue();
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372 | } |
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373 | hasnext = Boolean.FALSE;
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374 | while (iter.hasNext()) {
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375 | 24145 | vcaballero | pos++; |
376 | 28316 | jmvivo | obj = (DefaultFeature) iter.next(); |
377 | 25751 | vcaballero | if (deleted.contains(obj.getReference())){
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378 | 28316 | jmvivo | continue;
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379 | 24145 | vcaballero | }else if (!modifiedFromOriginal.containsValue(new Integer(pos))){ |
380 | 28316 | jmvivo | continue;
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381 | 24145 | vcaballero | }else {
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382 | 28316 | jmvivo | hasnext = Boolean.TRUE;
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383 | break;
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384 | 24145 | vcaballero | } |
385 | } |
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386 | 28316 | jmvivo | return hasnext.booleanValue();
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387 | 24145 | vcaballero | } |
388 | |||
389 | public Object next() { |
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390 | 28316 | jmvivo | if (!hasNext()) {
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391 | throw new NoSuchElementException(); |
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392 | 24145 | vcaballero | } |
393 | 28316 | jmvivo | hasnext = null;
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394 | return obj.getData();
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395 | 24145 | vcaballero | } |
396 | |||
397 | public void remove() { |
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398 | throw new UnsupportedOperationException(); |
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399 | |||
400 | } |
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401 | } |
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402 | |||
403 | 23820 | jjdelcerro | public boolean hasNews() { |
404 | 24145 | vcaballero | return !added.isEmpty();
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405 | 23820 | jjdelcerro | } |
406 | |||
407 | public long getDeltaSize() { |
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408 | 24132 | vcaballero | return deltaSize;
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409 | 23820 | jjdelcerro | } |
410 | 19399 | vcaballero | } |