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 / DefaultFeatureStoreTransforms.java @ 44581
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * 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 | */
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24 | 40435 | jjdelcerro | package org.gvsig.fmap.dal.feature.impl; |
25 | |||
26 | import java.util.ArrayList; |
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27 | import java.util.Collections; |
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28 | import java.util.Iterator; |
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29 | import java.util.List; |
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30 | import java.util.ListIterator; |
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31 | |||
32 | import org.gvsig.fmap.dal.exception.DataException; |
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33 | import org.gvsig.fmap.dal.feature.EditableFeature; |
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34 | import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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35 | import org.gvsig.fmap.dal.feature.Feature; |
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36 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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37 | import org.gvsig.fmap.dal.feature.FeatureStoreNotification; |
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38 | import org.gvsig.fmap.dal.feature.FeatureStoreTransform; |
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39 | import org.gvsig.fmap.dal.feature.FeatureStoreTransforms; |
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40 | import org.gvsig.fmap.dal.feature.FeatureType; |
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41 | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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42 | import org.gvsig.tools.ToolsLocator; |
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43 | import org.gvsig.tools.dynobject.DynStruct; |
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44 | import org.gvsig.tools.dynobject.exception.DynFieldNotFoundException; |
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45 | import org.gvsig.tools.persistence.Persistent; |
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46 | import org.gvsig.tools.persistence.PersistentState; |
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47 | import org.gvsig.tools.persistence.exception.PersistenceException; |
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48 | 44165 | jjdelcerro | import org.slf4j.Logger; |
49 | import org.slf4j.LoggerFactory; |
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50 | 40435 | jjdelcerro | |
51 | 43215 | jjdelcerro | public class DefaultFeatureStoreTransforms |
52 | implements FeatureStoreTransforms,
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53 | Persistent { |
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54 | 40435 | jjdelcerro | |
55 | 44165 | jjdelcerro | private static final Logger LOGGER = LoggerFactory.getLogger(DefaultFeatureStoreTransforms.class); |
56 | |||
57 | 43215 | jjdelcerro | private DefaultFeatureStore store;
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58 | private List<FeatureStoreTransform> transforms; |
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59 | private Boolean isTramsformValues; |
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60 | private TransformTemporalList lastTransformStack;
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61 | 40435 | jjdelcerro | |
62 | 43215 | jjdelcerro | public DefaultFeatureStoreTransforms() {
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63 | this.store = null; |
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64 | this.transforms = new ArrayList(); |
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65 | this.isTramsformValues = false; |
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66 | } |
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67 | 40435 | jjdelcerro | |
68 | 43215 | jjdelcerro | public DefaultFeatureStoreTransforms(DefaultFeatureStore store) {
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69 | this.store = store;
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70 | this.transforms = new ArrayList(); |
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71 | } |
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72 | 40435 | jjdelcerro | |
73 | 43215 | jjdelcerro | protected void checkEditingMode() { |
74 | if( store == null || store.getMode() != FeatureStore.MODE_QUERY ) { |
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75 | throw new IllegalStateException(); |
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76 | } |
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77 | } |
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78 | 40435 | jjdelcerro | |
79 | 43215 | jjdelcerro | protected void notifyChangeToStore() { |
80 | this.store.notifyChange(FeatureStoreNotification.TRANSFORM_CHANGE);
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81 | } |
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82 | 40435 | jjdelcerro | |
83 | 43215 | jjdelcerro | @Override
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84 | public FeatureStoreTransform add(FeatureStoreTransform transform)
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85 | throws DataException {
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86 | checkEditingMode(); |
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87 | 43399 | jjdelcerro | try {
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88 | transform.setUp(); |
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89 | } catch (Exception ex) { |
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90 | throw new RuntimeException("Can't set up transformation.", ex); |
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91 | } |
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92 | 43215 | jjdelcerro | if( transform.getDefaultFeatureType() != null ) { |
93 | if( !transform.getFeatureTypes().contains(transform.getDefaultFeatureType()) ) {
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94 | throw new IllegalArgumentException(); // FIXME: Add specific type |
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95 | } |
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96 | this.transforms.add(transform);
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97 | transform.setFeatureStore(store); |
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98 | transform.setSourceMetadata(this.store.metadata);
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99 | this.notifyChangeToStore();
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100 | if( this.isTramsformValues == null || (!this.isTramsformValues) ) { |
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101 | if( transform.isTransformsOriginalValues() ) {
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102 | this.isTramsformValues = true; |
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103 | } |
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104 | 40435 | jjdelcerro | |
105 | 43215 | jjdelcerro | } |
106 | } |
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107 | 40435 | jjdelcerro | |
108 | 43215 | jjdelcerro | return transform;
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109 | } |
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110 | 40435 | jjdelcerro | |
111 | 43215 | jjdelcerro | @Override
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112 | public void clear() { |
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113 | checkEditingMode(); |
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114 | this.transforms.clear();
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115 | this.notifyChangeToStore();
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116 | this.isTramsformValues = Boolean.FALSE; |
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117 | } |
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118 | 40435 | jjdelcerro | |
119 | 43215 | jjdelcerro | @Override
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120 | public FeatureStoreTransform getTransform(int index) { |
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121 | return (FeatureStoreTransform) this.transforms.get(index); |
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122 | } |
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123 | 40435 | jjdelcerro | |
124 | 43215 | jjdelcerro | @Override
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125 | public Iterator<FeatureStoreTransform> iterator() { |
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126 | return Collections.unmodifiableList(transforms).iterator(); |
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127 | } |
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128 | 40435 | jjdelcerro | |
129 | 43215 | jjdelcerro | @Override
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130 | public Object remove(int index) { |
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131 | checkEditingMode(); |
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132 | Object trans = this.transforms.remove(index); |
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133 | this.notifyChangeToStore();
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134 | this.isTramsformValues = null; |
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135 | return trans;
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136 | } |
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137 | 40435 | jjdelcerro | |
138 | 43215 | jjdelcerro | @Override
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139 | public boolean remove(FeatureStoreTransform transform) { |
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140 | checkEditingMode(); |
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141 | boolean removed = this.transforms.remove(transform); |
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142 | if( removed ) {
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143 | this.notifyChangeToStore();
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144 | 40435 | jjdelcerro | |
145 | 43215 | jjdelcerro | } |
146 | this.isTramsformValues = null; |
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147 | return removed;
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148 | 40435 | jjdelcerro | |
149 | 43215 | jjdelcerro | } |
150 | 40435 | jjdelcerro | |
151 | 43215 | jjdelcerro | @Override
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152 | public int size() { |
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153 | return this.transforms.size(); |
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154 | } |
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155 | 40435 | jjdelcerro | |
156 | 43215 | jjdelcerro | @Override
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157 | public boolean isEmpty() { |
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158 | return this.transforms.isEmpty(); |
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159 | } |
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160 | 40435 | jjdelcerro | |
161 | 43215 | jjdelcerro | private class TransformTemporalListElement { |
162 | 40435 | jjdelcerro | |
163 | 43215 | jjdelcerro | public FeatureStoreTransform transform = null; |
164 | public FeatureType targetFeatureType = null; |
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165 | } |
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166 | 40435 | jjdelcerro | |
167 | 43215 | jjdelcerro | private class TransformTemporalList |
168 | extends ArrayList { |
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169 | 40435 | jjdelcerro | |
170 | 43215 | jjdelcerro | /**
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171 | *
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172 | */
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173 | private static final long serialVersionUID = 1677014259279944000L; |
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174 | private FeatureType targetFType;
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175 | 40435 | jjdelcerro | |
176 | 43215 | jjdelcerro | @Override
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177 | public boolean add(Object arg0) { |
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178 | if( this.isEmpty() ) { |
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179 | targetFType = ((TransformTemporalListElement) arg0).targetFeatureType; |
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180 | } |
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181 | return super.add(arg0); |
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182 | } |
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183 | 40435 | jjdelcerro | |
184 | 43215 | jjdelcerro | } |
185 | 40435 | jjdelcerro | |
186 | 43215 | jjdelcerro | private TransformTemporalList getTransformTemporalList(FeatureType targetFeatureType) {
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187 | if( this.lastTransformStack == null |
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188 | || this.lastTransformStack.size() != this.transforms.size() |
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189 | || !(this.lastTransformStack.targetFType.equals(targetFeatureType)) ) {
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190 | TransformTemporalList result = new TransformTemporalList();
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191 | TransformTemporalListElement item; |
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192 | FeatureType nextFType = targetFeatureType; |
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193 | 40435 | jjdelcerro | |
194 | 43215 | jjdelcerro | for( int i = transforms.size() - 1; i > -1; i-- ) { |
195 | item = new TransformTemporalListElement();
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196 | item.transform = (FeatureStoreTransform) transforms.get(i); |
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197 | item.targetFeatureType = nextFType; |
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198 | nextFType = item.transform.getSourceFeatureTypeFrom(item.targetFeatureType); |
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199 | result.add(item); |
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200 | } |
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201 | this.lastTransformStack = result;
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202 | } |
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203 | return this.lastTransformStack; |
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204 | } |
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205 | 40435 | jjdelcerro | |
206 | 43215 | jjdelcerro | public Feature applyTransform(DefaultFeature source,
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207 | FeatureType targetFeatureType) |
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208 | throws DataException {
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209 | if( this.transforms.isEmpty() ) { |
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210 | return source;
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211 | } |
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212 | 40435 | jjdelcerro | |
213 | 43215 | jjdelcerro | TransformTemporalList stack = this
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214 | .getTransformTemporalList(targetFeatureType); |
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215 | TransformTemporalListElement item; |
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216 | FeatureProvider targetData; |
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217 | EditableFeature target; |
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218 | ListIterator iterator = stack.listIterator(stack.size());
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219 | FeatureType tft = null;
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220 | 40435 | jjdelcerro | |
221 | 43215 | jjdelcerro | while( iterator.hasPrevious() ) {
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222 | item = (TransformTemporalListElement) iterator.previous(); |
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223 | |||
224 | tft = item.targetFeatureType; |
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225 | if( tft instanceof EditableFeatureType ) { |
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226 | /*
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227 | 40435 | jjdelcerro | * Must be non-editable to create
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228 | * DefaultFeatureProvider
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229 | 43215 | jjdelcerro | */
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230 | tft = ((EditableFeatureType) tft).getNotEditableCopy(); |
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231 | } |
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232 | 40435 | jjdelcerro | |
233 | 43215 | jjdelcerro | targetData = this.store.createDefaultFeatureProvider(tft);
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234 | targetData.setOID(source.getData().getOID()); |
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235 | targetData.setNew(false);
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236 | target = new DefaultEditableFeature(this.store, targetData); |
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237 | item.transform.applyTransform(source, target); |
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238 | source = (DefaultFeature) target.getNotEditableCopy(); |
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239 | } |
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240 | 40435 | jjdelcerro | |
241 | 43215 | jjdelcerro | return source;
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242 | 40435 | jjdelcerro | |
243 | 43215 | jjdelcerro | } |
244 | 40435 | jjdelcerro | |
245 | 43215 | jjdelcerro | public FeatureType getSourceFeatureTypeFrom(FeatureType targetFeatureType) {
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246 | FeatureType tmpFType = targetFeatureType; |
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247 | 40435 | jjdelcerro | |
248 | 43215 | jjdelcerro | for( int i = transforms.size() - 1; i > -1; i-- ) { |
249 | FeatureStoreTransform transform = transforms.get(i); |
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250 | tmpFType = transform.getSourceFeatureTypeFrom(tmpFType); |
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251 | } |
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252 | return tmpFType;
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253 | } |
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254 | 40435 | jjdelcerro | |
255 | 43215 | jjdelcerro | public FeatureType getDefaultFeatureType() throws DataException { |
256 | if( this.transforms.isEmpty() ) { |
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257 | return null; |
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258 | } |
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259 | FeatureStoreTransform transform = this.transforms.get(this.transforms.size() - 1); |
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260 | return transform.getDefaultFeatureType();
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261 | } |
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262 | 40435 | jjdelcerro | |
263 | 43215 | jjdelcerro | public List<FeatureType> getFeatureTypes() throws DataException { |
264 | if( this.transforms.isEmpty() ) { |
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265 | return null; |
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266 | } |
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267 | FeatureStoreTransform transform = this.transforms.get(this.transforms.size() - 1); |
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268 | return transform.getFeatureTypes();
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269 | } |
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270 | 40435 | jjdelcerro | |
271 | 43215 | jjdelcerro | public FeatureStore getFeatureStore() {
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272 | return this.store; |
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273 | } |
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274 | 40435 | jjdelcerro | |
275 | 43215 | jjdelcerro | public void setFeatureStore(FeatureStore featureStore) { |
276 | if( this.store != null ) { |
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277 | throw new IllegalStateException(); |
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278 | } |
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279 | this.store = (DefaultFeatureStore) featureStore;
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280 | for( FeatureStoreTransform transform : this ) { |
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281 | transform.setFeatureStore(featureStore); |
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282 | } |
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283 | } |
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284 | |||
285 | public void setStoreForClone(FeatureStore featureStore) { |
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286 | this.store = (DefaultFeatureStore) featureStore;
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287 | } |
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288 | 40435 | jjdelcerro | |
289 | 43215 | jjdelcerro | @Override
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290 | public boolean isTransformsOriginalValues() { |
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291 | if( this.isTramsformValues == null ) { |
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292 | this.isTramsformValues = false; |
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293 | for( FeatureStoreTransform transform : this ) { |
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294 | if( transform.isTransformsOriginalValues() ) {
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295 | this.isTramsformValues = true; |
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296 | break;
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297 | } |
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298 | } |
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299 | } |
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300 | return this.isTramsformValues; |
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301 | } |
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302 | 40435 | jjdelcerro | |
303 | 43215 | jjdelcerro | public FeatureType getFeatureType(String featureTypeId) |
304 | throws DataException {
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305 | if( this.transforms.isEmpty() ) { |
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306 | return null; |
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307 | } |
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308 | if( featureTypeId == null ) { |
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309 | return this.getDefaultFeatureType(); |
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310 | } |
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311 | for( FeatureType fType : (List<FeatureType>) this.getFeatureTypes() ) { |
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312 | |||
313 | } |
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314 | Iterator iter = this.getFeatureTypes().iterator(); |
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315 | FeatureType fType; |
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316 | while( iter.hasNext() ) {
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317 | fType = (FeatureType) iter.next(); |
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318 | if( fType.getId().equals(featureTypeId) ) {
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319 | return fType;
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320 | } |
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321 | } |
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322 | return null; |
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323 | } |
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324 | 40435 | jjdelcerro | |
325 | 43215 | jjdelcerro | @Override
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326 | public void saveToState(PersistentState state) throws PersistenceException { |
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327 | // state.set("store", store);
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328 | state.set("isTramsformValues", this.isTramsformValues); |
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329 | state.set("transforms", this.transforms); |
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330 | } |
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331 | 40435 | jjdelcerro | |
332 | 43215 | jjdelcerro | @Override
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333 | public void loadFromState(PersistentState state) |
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334 | throws PersistenceException {
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335 | this.isTramsformValues = (Boolean) state.get("isTramsformValues"); |
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336 | this.transforms = new ArrayList(); |
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337 | List<FeatureStoreTransform> x = (List<FeatureStoreTransform>) state.get("transforms"); |
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338 | this.transforms.addAll(x);
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339 | // this.store = (DefaultFeatureStore) state.get("store");
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340 | } |
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341 | 40435 | jjdelcerro | |
342 | 43215 | jjdelcerro | public static void registerPersistent() { |
343 | DynStruct definition = ToolsLocator.getPersistenceManager().addDefinition( |
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344 | DefaultFeatureStoreTransforms.class, |
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345 | "DefaultFeatureStoreTransforms",
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346 | "DefaultFeatureStoreTransforms Persistent definition",
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347 | null,
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348 | null
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349 | ); |
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350 | 40435 | jjdelcerro | |
351 | 43215 | jjdelcerro | definition.addDynFieldBoolean("isTramsformValues").setMandatory(false); |
352 | definition.addDynFieldList("transforms").setClassOfItems(FeatureStoreTransform.class).setMandatory(true); |
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353 | definition.addDynFieldObject("store").setClassOfValue(FeatureStore.class).setMandatory(false); |
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354 | 40435 | jjdelcerro | |
355 | 43215 | jjdelcerro | } |
356 | 40435 | jjdelcerro | |
357 | 43215 | jjdelcerro | public Object getDynValue(String name) throws DynFieldNotFoundException { |
358 | if( !this.transforms.isEmpty() ) { |
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359 | 44165 | jjdelcerro | for (int i = this.transforms.size() - 1; i >= 0; i--) { |
360 | FeatureStoreTransform transform = transforms.get(i); |
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361 | if( transform!=null && transform.hasDynValue(name) ) { |
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362 | Object value;
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363 | try {
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364 | value = transform.getDynValue(name); |
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365 | if( value!=null ) { |
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366 | return value;
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367 | } |
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368 | } catch(Exception ex) { |
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369 | LOGGER.warn("Cant retrieve value of '"+name+ "' in transform '"+transform.getName()+"'.", ex); |
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370 | } |
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371 | } |
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372 | 43215 | jjdelcerro | } |
373 | } |
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374 | 44165 | jjdelcerro | return null; |
375 | 43215 | jjdelcerro | } |
376 | 40435 | jjdelcerro | |
377 | 43215 | jjdelcerro | public void setDynValue(String name, Object value) throws DynFieldNotFoundException { |
378 | if( !this.transforms.isEmpty() ) { |
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379 | FeatureStoreTransform transform = (FeatureStoreTransform) transforms.get(this.transforms.size() - 1); |
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380 | transform.setDynValue(name, value); |
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381 | } |
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382 | } |
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383 | 40435 | jjdelcerro | |
384 | 43215 | jjdelcerro | public boolean hasDynValue(String name) { |
385 | if( !this.transforms.isEmpty() ) { |
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386 | 44165 | jjdelcerro | for (int i = this.transforms.size() - 1; i >= 0; i--) { |
387 | FeatureStoreTransform transform = transforms.get(i); |
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388 | if( transform.hasDynValue(name) ) {
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389 | return true; |
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390 | } |
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391 | 43215 | jjdelcerro | } |
392 | } |
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393 | return false; |
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394 | } |
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395 | 40435 | jjdelcerro | |
396 | 43215 | jjdelcerro | @Override
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397 | public Object clone() throws CloneNotSupportedException { |
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398 | DefaultFeatureStoreTransforms cloned = (DefaultFeatureStoreTransforms) super.clone();
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399 | cloned.transforms = new ArrayList(); |
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400 | for( FeatureStoreTransform transform : transforms ) {
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401 | cloned.transforms.add((FeatureStoreTransform) transform.clone()); |
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402 | } |
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403 | cloned.lastTransformStack = null;
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404 | return cloned;
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405 | } |
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406 | 40435 | jjdelcerro | |
407 | } |