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 / FeatureTypeManager.java @ 42563
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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 | 41926 | jjdelcerro | * This program is free software; you can redistribute it and/or modify it under
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7 | * the terms of the GNU General Public License as published by the Free Software
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8 | * Foundation; either version 3 of the License, or (at your option) any later
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9 | * version.
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10 | 40435 | jjdelcerro | *
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11 | 41926 | jjdelcerro | * This program is distributed in the hope that it will be useful, but WITHOUT
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12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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13 | * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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14 | * details.
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15 | 40435 | jjdelcerro | *
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16 | 41926 | jjdelcerro | * You should have received a copy of the GNU General Public License along with
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17 | * this program; if not, write to the Free Software Foundation, Inc., 51
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18 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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19 | 40435 | jjdelcerro | *
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20 | 41926 | jjdelcerro | * For any additional information, do not hesitate to contact us at info AT
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21 | * gvsig.com, or visit our website www.gvsig.com.
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22 | 40435 | jjdelcerro | */
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23 | package org.gvsig.fmap.dal.feature.impl; |
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24 | |||
25 | import java.lang.ref.WeakReference; |
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26 | import java.util.ArrayList; |
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27 | import java.util.Arrays; |
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28 | import java.util.HashMap; |
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29 | import java.util.Iterator; |
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30 | import java.util.List; |
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31 | |||
32 | import org.gvsig.fmap.dal.exception.DataException; |
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33 | import org.gvsig.fmap.dal.feature.AbstractFeatureStoreTransform; |
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34 | import org.gvsig.fmap.dal.feature.EditableFeature; |
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35 | import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor; |
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36 | import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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37 | import org.gvsig.fmap.dal.feature.Feature; |
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38 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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39 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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40 | import org.gvsig.fmap.dal.feature.FeatureStoreTransform; |
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41 | import org.gvsig.fmap.dal.feature.FeatureType; |
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42 | import org.gvsig.fmap.dal.feature.impl.expansionadapter.ExpansionAdapter; |
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43 | import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider.FeatureTypeChanged; |
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44 | import org.gvsig.tools.persistence.PersistentState; |
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45 | import org.gvsig.tools.persistence.exception.PersistenceException; |
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46 | |||
47 | public class FeatureTypeManager { |
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48 | |||
49 | 41926 | jjdelcerro | private ExpansionAdapter expansionAdapter;
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50 | private ArrayList deleted = new ArrayList();// <FeatureID> |
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51 | private int deltaSize = 0; |
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52 | private HashMap added = new HashMap(); |
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53 | private HashMap modifiedFromOriginal = new HashMap(); |
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54 | private FeatureType originalType = null; |
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55 | private boolean first = true; |
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56 | private FeatureTypeManagerFeatureStoreTransforms transforms;
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57 | private FeatureStore store;
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58 | 40435 | jjdelcerro | |
59 | 41926 | jjdelcerro | public FeatureTypeManager(FeatureStore store,
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60 | ExpansionAdapter expansionAdapter) { |
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61 | this.expansionAdapter = expansionAdapter;
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62 | this.store = store;
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63 | this.transforms = new FeatureTypeManagerFeatureStoreTransforms(); |
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64 | this.transforms.setFeatureStore(store);
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65 | } |
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66 | 40435 | jjdelcerro | |
67 | 41926 | jjdelcerro | public void dispose() { |
68 | this.expansionAdapter.close();
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69 | this.expansionAdapter = null; |
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70 | this.deleted.clear();
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71 | this.deleted = null; |
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72 | this.transforms.clear();
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73 | } |
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74 | 40435 | jjdelcerro | |
75 | 41926 | jjdelcerro | public FeatureType getType(String id) throws DataException { |
76 | Integer intNum = ((Integer) added.get(id)); |
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77 | if (intNum == null) { |
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78 | intNum = ((Integer) modifiedFromOriginal.get(id));
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79 | if (intNum == null) { |
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80 | return null; |
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81 | } |
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82 | } |
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83 | int num = intNum.intValue();
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84 | 40435 | jjdelcerro | |
85 | 41926 | jjdelcerro | if (num == -1) { |
86 | /*
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87 | * This happens for example when we are going back to the
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88 | * original feature type which is not managed by
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89 | * expansionAdapter
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90 | */
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91 | return null; |
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92 | } |
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93 | 40435 | jjdelcerro | |
94 | 41926 | jjdelcerro | FeatureType type = (FeatureType) expansionAdapter.getObject(num); |
95 | return type;
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96 | } |
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97 | 40435 | jjdelcerro | |
98 | 41926 | jjdelcerro | public int update(FeatureType type, FeatureType oldType) { |
99 | // deleted.add(oldType.getId());
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100 | if (first) {
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101 | originalType = oldType; |
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102 | first = false;
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103 | } |
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104 | int oldNum = -1; |
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105 | int num = expansionAdapter.addObject(type);
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106 | String id = type.getId();
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107 | 40435 | jjdelcerro | |
108 | 41926 | jjdelcerro | if (added.containsKey(id)) {
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109 | oldNum = ((Integer) added.get(id)).intValue();
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110 | added.put(id, new Integer(num)); |
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111 | } else {
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112 | if (modifiedFromOriginal.get(id) != null) { |
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113 | oldNum = ((Integer) modifiedFromOriginal.get(id)).intValue();
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114 | } |
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115 | modifiedFromOriginal.put(id, new Integer(num)); |
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116 | } |
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117 | |||
118 | try {
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119 | this.transforms.add(new UpdateFeatureTypeTransform(this.store, |
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120 | oldType, type)); |
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121 | } catch (DataException e) {
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122 | throw new RuntimeException(); // FIXME (pero esto no deberia de |
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123 | // pasar nunca)
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124 | } |
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125 | return oldNum;
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126 | } |
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127 | |||
128 | private class UpdateFeatureTypeTransform extends AbstractFeatureStoreTransform { |
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129 | |||
130 | private FeatureType ftSource;
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131 | |||
132 | 40435 | jjdelcerro | private EditableFeatureType ftTarget_editable;
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133 | private FeatureType ftTarget_non_editable;
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134 | |||
135 | 41926 | jjdelcerro | private WeakReference wkRefStore; |
136 | private List ftypes = null; |
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137 | private List attrInSourceToUse; |
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138 | 40435 | jjdelcerro | |
139 | 41926 | jjdelcerro | UpdateFeatureTypeTransform(FeatureStore featureStore, |
140 | FeatureType ftSource, FeatureType ftTarget) { |
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141 | this.ftSource = ftSource;
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142 | 40435 | jjdelcerro | |
143 | 41926 | jjdelcerro | if (ftTarget instanceof EditableFeatureType) { |
144 | 40435 | jjdelcerro | |
145 | 41926 | jjdelcerro | ftTarget_editable = (EditableFeatureType) ftTarget; |
146 | ftTarget_non_editable = ftTarget_editable.getNotEditableCopy(); |
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147 | } else {
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148 | ftTarget_non_editable = ftTarget; |
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149 | } |
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150 | 40435 | jjdelcerro | |
151 | 41926 | jjdelcerro | this.wkRefStore = new WeakReference(featureStore); |
152 | this.initializeAttributesToUse();
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153 | } |
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154 | |||
155 | private void initializeAttributesToUse() { |
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156 | attrInSourceToUse = new ArrayList(); |
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157 | |||
158 | Iterator iter = null; |
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159 | if (ftTarget_editable != null) { |
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160 | iter = ftTarget_editable.iterator(); |
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161 | } else {
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162 | iter = ftTarget_non_editable.iterator(); |
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163 | } |
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164 | |||
165 | FeatureAttributeDescriptor tAttr, sAttr; |
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166 | EditableFeatureAttributeDescriptor ead = null;
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167 | while (iter.hasNext()) {
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168 | tAttr = (FeatureAttributeDescriptor) iter.next(); |
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169 | sAttr = this.ftSource.getAttributeDescriptor(tAttr.getName());
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170 | if (sAttr == null) { |
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171 | if (tAttr instanceof EditableFeatureAttributeDescriptor) { |
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172 | ead = (EditableFeatureAttributeDescriptor) tAttr; |
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173 | if (ead.getOriginalName() != null) { |
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174 | sAttr = this.ftSource.getAttributeDescriptor(ead.getOriginalName());
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175 | if (sAttr == null) { |
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176 | continue;
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177 | } |
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178 | } else {
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179 | continue;
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180 | } |
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181 | } else {
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182 | continue;
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183 | } |
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184 | } |
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185 | if (tAttr.getType() != sAttr.getType()) {
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186 | /*
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187 | * Ignore if type is not the same (user removed field
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188 | * and added another with same name but different type)
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189 | */
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190 | continue;
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191 | } |
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192 | attrInSourceToUse.add(sAttr.getName()); |
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193 | } |
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194 | } |
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195 | |||
196 | public void applyTransform(Feature source, EditableFeature target) |
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197 | throws DataException {
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198 | |||
199 | Iterator iter = target.getType().iterator();
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200 | FeatureAttributeDescriptor tAttr; |
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201 | FeatureAttributeDescriptor tAttr_edi; |
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202 | FeatureAttributeDescriptor srcAtt; |
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203 | |||
204 | /*
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205 | * field name in source feature
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206 | */
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207 | 40435 | jjdelcerro | String s_name;
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208 | 41926 | jjdelcerro | |
209 | 40435 | jjdelcerro | /*
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210 | * field name in target feature (the same as in source
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211 | * except if renamed)
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212 | */
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213 | String t_name;
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214 | |||
215 | 41926 | jjdelcerro | EditableFeatureAttributeDescriptor eatd = null;
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216 | while (iter.hasNext()) {
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217 | tAttr = (FeatureAttributeDescriptor) iter.next(); |
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218 | 40435 | jjdelcerro | |
219 | 41926 | jjdelcerro | if (ftTarget_editable != null) { |
220 | /*
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221 | * If target FT is editable, try to get original name
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222 | */
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223 | t_name = tAttr.getName(); |
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224 | s_name = t_name; |
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225 | tAttr_edi = ftTarget_editable.getAttributeDescriptor(t_name); |
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226 | if (tAttr_edi instanceof EditableFeatureAttributeDescriptor) { |
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227 | eatd = (EditableFeatureAttributeDescriptor) tAttr_edi; |
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228 | s_name = eatd.getOriginalName(); |
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229 | } |
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230 | 40435 | jjdelcerro | |
231 | 41926 | jjdelcerro | /*
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232 | * If not found, use normal name
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233 | */
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234 | if (s_name == null) { |
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235 | s_name = tAttr.getName(); |
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236 | } |
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237 | } else {
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238 | /*
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239 | * If target FT is not editable, use normal name
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240 | */
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241 | t_name = tAttr.getName(); |
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242 | s_name = t_name; |
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243 | } |
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244 | 40435 | jjdelcerro | |
245 | 41926 | jjdelcerro | srcAtt = source.getType().getAttributeDescriptor(s_name); |
246 | 40435 | jjdelcerro | |
247 | 41926 | jjdelcerro | if (srcAtt != null |
248 | && /*
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249 | * This prevents the case when user has removed field and
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250 | * added new field with same name and different type.
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251 | * In that case, value will be the default value (else below)
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252 | */ srcAtt.getType() == tAttr.getType()) {
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253 | 40435 | jjdelcerro | |
254 | 41926 | jjdelcerro | target.set(t_name, source.get(s_name)); |
255 | 40435 | jjdelcerro | |
256 | 41926 | jjdelcerro | } else {
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257 | target.set(t_name, tAttr.getDefaultValue()); |
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258 | } |
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259 | } |
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260 | } |
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261 | 40435 | jjdelcerro | |
262 | 41926 | jjdelcerro | public FeatureType getDefaultFeatureType() throws DataException { |
263 | return this.ftTarget_non_editable; |
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264 | } |
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265 | 40435 | jjdelcerro | |
266 | 41926 | jjdelcerro | public FeatureStore getFeatureStore() {
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267 | return (FeatureStore) this.wkRefStore.get(); |
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268 | } |
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269 | 40435 | jjdelcerro | |
270 | 41926 | jjdelcerro | public List getFeatureTypes() throws DataException { |
271 | if (this.ftypes == null) { |
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272 | this.ftypes = Arrays |
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273 | .asList(new FeatureType[]{this.ftTarget_non_editable}); |
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274 | } |
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275 | return this.ftypes; |
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276 | } |
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277 | 40435 | jjdelcerro | |
278 | 41926 | jjdelcerro | public FeatureType getSourceFeatureTypeFrom(
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279 | FeatureType targetFeatureType) { |
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280 | EditableFeatureType orgType = ftSource.getEditable(); |
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281 | Iterator iter = orgType.iterator();
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282 | FeatureAttributeDescriptor attr; |
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283 | EditableFeatureAttributeDescriptor efad = null;
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284 | 40435 | jjdelcerro | |
285 | 41926 | jjdelcerro | while (iter.hasNext()) {
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286 | attr = (FeatureAttributeDescriptor) iter.next(); |
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287 | if (!attrInSourceToUse.contains(attr.getName())) {
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288 | if (attr instanceof EditableFeatureAttributeDescriptor) { |
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289 | efad = (EditableFeatureAttributeDescriptor) attr; |
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290 | if (efad.getOriginalName() != null |
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291 | && !attrInSourceToUse.contains(efad.getOriginalName())) { |
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292 | iter.remove(); |
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293 | } |
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294 | } else {
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295 | iter.remove(); |
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296 | } |
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297 | } |
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298 | } |
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299 | return orgType.getNotEditableCopy();
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300 | } |
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301 | 40435 | jjdelcerro | |
302 | 41926 | jjdelcerro | public void setFeatureStore(FeatureStore featureStore) { |
303 | this.wkRefStore = new WeakReference(featureStore); |
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304 | } |
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305 | 40435 | jjdelcerro | |
306 | 41926 | jjdelcerro | public boolean isTransformsOriginalValues() { |
307 | return false; |
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308 | } |
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309 | 40435 | jjdelcerro | |
310 | 41926 | jjdelcerro | } |
311 | 40435 | jjdelcerro | |
312 | 41926 | jjdelcerro | public void restore(String id) { |
313 | deleted.remove(id); |
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314 | deltaSize++; |
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315 | } |
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316 | 40435 | jjdelcerro | |
317 | 41926 | jjdelcerro | public void restore(String id, int num) { |
318 | if (added.containsKey(id)) {
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319 | added.put(id, new Integer(num)); |
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320 | } else {
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321 | modifiedFromOriginal.put(id, new Integer(num)); |
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322 | } |
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323 | } |
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324 | 40435 | jjdelcerro | |
325 | 41926 | jjdelcerro | public boolean isDeleted(FeatureType type) { |
326 | return deleted.contains(type.getId());
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327 | } |
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328 | 40435 | jjdelcerro | |
329 | 41926 | jjdelcerro | public boolean isDeleted(String id) { |
330 | return deleted.contains(id);
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331 | } |
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332 | 40435 | jjdelcerro | |
333 | 41926 | jjdelcerro | public void clear() { |
334 | added.clear(); |
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335 | modifiedFromOriginal.clear(); |
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336 | expansionAdapter.close(); |
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337 | deleted.clear();// <FeatureID>
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338 | deltaSize = 0;
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339 | } |
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340 | 40435 | jjdelcerro | |
341 | 41926 | jjdelcerro | public boolean hasChanges() { |
342 | return added.size() > 0 || modifiedFromOriginal.size() > 0 |
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343 | || deleted.size() > 0;
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344 | } |
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345 | 40435 | jjdelcerro | |
346 | 41926 | jjdelcerro | public Iterator newsIterator() { |
347 | return added.values().iterator();
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348 | } |
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349 | 40435 | jjdelcerro | |
350 | 41926 | jjdelcerro | public boolean hasNews() { |
351 | return !added.isEmpty();
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352 | } |
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353 | 40435 | jjdelcerro | |
354 | 41926 | jjdelcerro | public long getDeltaSize() { |
355 | return deltaSize;
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356 | } |
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357 | 40435 | jjdelcerro | |
358 | 41926 | jjdelcerro | public FeatureType getOriginalFeatureType() {
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359 | return originalType;
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360 | } |
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361 | 40435 | jjdelcerro | |
362 | 41926 | jjdelcerro | public DefaultFeatureStoreTransforms getTransforms() {
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363 | return this.transforms; |
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364 | } |
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365 | 40435 | jjdelcerro | |
366 | 41926 | jjdelcerro | public class FeatureTypeManagerFeatureStoreTransforms extends |
367 | DefaultFeatureStoreTransforms { |
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368 | 40435 | jjdelcerro | |
369 | 41926 | jjdelcerro | private FeatureTypeManagerFeatureStoreTransforms() {
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370 | 40435 | jjdelcerro | |
371 | 41926 | jjdelcerro | } |
372 | 40435 | jjdelcerro | |
373 | 41926 | jjdelcerro | protected void checkEditingMode() { |
374 | } |
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375 | 40435 | jjdelcerro | |
376 | 41926 | jjdelcerro | protected void notifyChangeToStore() { |
377 | } |
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378 | 40435 | jjdelcerro | |
379 | 41926 | jjdelcerro | public PersistentState getState() throws PersistenceException { |
380 | // FIXME
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381 | throw new UnsupportedOperationException(); |
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382 | } |
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383 | 40435 | jjdelcerro | |
384 | 41926 | jjdelcerro | public void loadState(PersistentState state) |
385 | throws PersistenceException {
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386 | // FIXME
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387 | throw new UnsupportedOperationException(); |
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388 | } |
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389 | 40435 | jjdelcerro | |
390 | 41926 | jjdelcerro | public void loadFromState(PersistentState state) throws PersistenceException { |
391 | // FIXME
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392 | throw new UnsupportedOperationException(); |
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393 | } |
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394 | 40435 | jjdelcerro | |
395 | 41926 | jjdelcerro | public FeatureStoreTransform add(FeatureStoreTransform transform)
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396 | throws DataException {
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397 | if (!(transform instanceof UpdateFeatureTypeTransform)) { |
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398 | // FIXME
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399 | throw new IllegalArgumentException(); |
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400 | } |
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401 | return super.add(transform); |
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402 | } |
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403 | 40435 | jjdelcerro | |
404 | 41926 | jjdelcerro | } |
405 | 40435 | jjdelcerro | |
406 | 41926 | jjdelcerro | public class FeatureTypesChangedItem implements FeatureTypeChanged { |
407 | |||
408 | private FeatureType source;
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409 | private FeatureType target;
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410 | |||
411 | public FeatureTypesChangedItem(FeatureType source, FeatureType target) {
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412 | this.source = source;
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413 | this.target = target;
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414 | } |
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415 | |||
416 | public FeatureType getSource() {
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417 | return source;
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418 | } |
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419 | |||
420 | public FeatureType getTarget() {
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421 | return target;
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422 | } |
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423 | |||
424 | } |
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425 | |||
426 | public Iterator getFeatureTypesChanged() throws DataException { |
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427 | // FIXME this don't work for Store.fType.size() > 1
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428 | List list = new ArrayList(); |
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429 | if (modifiedFromOriginal.size() > 0) { |
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430 | FeatureType src = this.getOriginalFeatureType();
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431 | list.add(new FeatureTypesChangedItem(src, this.store |
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432 | .getFeatureType(src.getId()))); |
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433 | } |
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434 | return list.iterator();
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435 | } |
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436 | |||
437 | 40435 | jjdelcerro | } |