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 / DefaultFeatureReference.java @ 44500
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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.lang.ref.WeakReference; |
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27 | import java.util.Arrays; |
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28 | 43824 | jjdelcerro | import java.util.Base64; |
29 | 40435 | jjdelcerro | import java.util.List; |
30 | 44488 | jjdelcerro | import java.util.Objects; |
31 | 43358 | jjdelcerro | import org.apache.commons.lang3.ArrayUtils; |
32 | 40435 | jjdelcerro | |
33 | import org.gvsig.fmap.dal.exception.DataException; |
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34 | import org.gvsig.fmap.dal.feature.Feature; |
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35 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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36 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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37 | import org.gvsig.fmap.dal.feature.FeatureType; |
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38 | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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39 | import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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40 | import org.gvsig.tools.ToolsLocator; |
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41 | import org.gvsig.tools.dynobject.DynStruct; |
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42 | import org.gvsig.tools.persistence.Persistent; |
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43 | import org.gvsig.tools.persistence.PersistentState; |
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44 | import org.gvsig.tools.persistence.exception.PersistenceException; |
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45 | 43824 | jjdelcerro | import org.json.JSONArray; |
46 | import org.json.JSONObject; |
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47 | 40435 | jjdelcerro | |
48 | public class DefaultFeatureReference implements |
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49 | FeatureReferenceProviderServices, Persistent { |
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50 | |||
51 | private Object oid; |
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52 | private Integer myHashCode = null; |
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53 | private Object[] pk; |
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54 | private String[] pkNames; |
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55 | private WeakReference storeRef; |
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56 | private boolean isNewFeature; |
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57 | private String featureTypeId; |
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58 | |||
59 | 43824 | jjdelcerro | |
60 | private final int OID_INDEX = 0; |
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61 | private final int MYHASHCODE_INDEX = 1; |
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62 | private final int ISNEWFEATURE_INDEX = 2; |
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63 | private final int FEATURETYPEID_INDEX = 3; |
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64 | private final int PKNAMES_SIZE_INDEX = 4; |
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65 | private final int PKNAMES_INDEX = 5; |
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66 | private final int PK_INDEX = 6; |
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67 | |||
68 | 40435 | jjdelcerro | /**
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69 | * Constructor used by the persistence manager. Don't use directly.
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70 | * After to invoke this method, the persistence manager calls
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71 | * the the method {@link #loadFromState(PersistentState)} to set
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72 | * the values of the internal attributes that this class needs to work.
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73 | */
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74 | public DefaultFeatureReference() {
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75 | super();
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76 | } |
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77 | |||
78 | public DefaultFeatureReference(DefaultFeature feature) {
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79 | this(feature.getStore(), feature.getData());
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80 | } |
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81 | |||
82 | public DefaultFeatureReference(FeatureStore store,
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83 | FeatureProvider fdata) { |
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84 | this.isNewFeature = fdata.isNew();
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85 | this.oid = null; |
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86 | this.pk = null; |
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87 | this.storeRef = new WeakReference(store); |
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88 | this.featureTypeId = fdata.getType().getId();
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89 | |||
90 | if (fdata.getType().hasOID() || isNewFeature) {
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91 | this.oid = fdata.getOID();
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92 | if (this.oid == null) { |
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93 | // FIXME Exception
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94 | throw new RuntimeException("Missing OID"); |
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95 | } |
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96 | } else {
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97 | this.calculatePK(fdata);
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98 | if (this.pk == null) { |
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99 | // FIXME Exception
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100 | throw new RuntimeException("Missing pk attributes"); |
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101 | } |
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102 | } |
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103 | |||
104 | } |
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105 | |||
106 | /*
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107 | * Use only for Persistent.setState
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108 | */
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109 | public DefaultFeatureReference(FeatureStore store) {
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110 | this.isNewFeature = false; |
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111 | this.oid = null; |
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112 | this.pk = null; |
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113 | this.storeRef = new WeakReference(store); |
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114 | } |
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115 | |||
116 | public DefaultFeatureReference(FeatureStore store, Object oid) { |
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117 | // FIXME featureTypeId is needed !!!
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118 | this.isNewFeature = false; |
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119 | this.oid = oid;
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120 | this.pk = null; |
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121 | this.storeRef = new WeakReference(store); |
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122 | } |
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123 | |||
124 | 43824 | jjdelcerro | public DefaultFeatureReference(FeatureStore store, String code) { |
125 | this.storeRef = new WeakReference(store); |
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126 | |||
127 | String json = new String(Base64.getDecoder().decode(code.getBytes())); |
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128 | |||
129 | JSONArray x = new JSONArray(json);
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130 | this.oid = x.get(OID_INDEX);
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131 | if( x.get(MYHASHCODE_INDEX)==JSONObject.NULL ) {
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132 | this.myHashCode = null; |
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133 | } else {
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134 | this.myHashCode = x.getInt(MYHASHCODE_INDEX);
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135 | } |
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136 | this.isNewFeature = x.getBoolean(ISNEWFEATURE_INDEX);
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137 | this.featureTypeId = x.getString(FEATURETYPEID_INDEX);
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138 | int pkNames_size = x.getInt(PKNAMES_SIZE_INDEX);
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139 | if( pkNames_size<0 ) { |
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140 | this.pk = null; |
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141 | this.pkNames = null; |
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142 | } else {
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143 | this.pk = new Object[pkNames_size]; |
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144 | this.pkNames = new String[pkNames_size]; |
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145 | JSONArray xx = x.getJSONArray(PKNAMES_INDEX); |
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146 | for( int i=0; i<xx.length(); i++ ) { |
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147 | this.pkNames[i] = xx.getString(i);
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148 | } |
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149 | xx = x.getJSONArray(PKNAMES_INDEX); |
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150 | for( int i=0; i<xx.length(); i++ ) { |
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151 | this.pk[i] = xx.get(i);
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152 | } |
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153 | } |
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154 | |||
155 | // JSONObject x = new JSONObject(json);
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156 | // this.oid = x.get("oid");
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157 | // this.myHashCode = x.getInt("myHashCode");
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158 | // this.isNewFeature = x.getBoolean("isNewFeature");
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159 | // this.featureTypeId = x.getString("featureTypeId");
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160 | // int pkNames_size = x.getInt("pkNames_size");
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161 | // if( pkNames_size<0 ) {
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162 | // this.pk = null;
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163 | // this.pkNames = null;
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164 | // } else {
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165 | // this.pk = new Object[pkNames_size];
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166 | // this.pkNames = new String[pkNames_size];
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167 | // JSONArray xx = x.getJSONArray("pkNames");
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168 | // for( int i=0; i<xx.length(); i++ ) {
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169 | // this.pkNames[i] = xx.getString(i);
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170 | // }
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171 | // xx = x.getJSONArray("pk");
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172 | // for( int i=0; i<xx.length(); i++ ) {
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173 | // this.pk[i] = xx.get(i);
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174 | // }
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175 | // }
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176 | } |
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177 | |||
178 | private DefaultFeatureStore getStore() {
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179 | 40435 | jjdelcerro | return (DefaultFeatureStore) this.storeRef.get(); |
180 | } |
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181 | |||
182 | private void calculatePK(FeatureProvider fdata) { |
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183 | 43358 | jjdelcerro | FeatureAttributeDescriptor[] pkattrs = fdata.getType().getPrimaryKey();
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184 | if( ArrayUtils.isEmpty(pkattrs) ) {
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185 | this.pk = null; |
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186 | this.pkNames = null; |
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187 | return ;
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188 | } |
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189 | this.pk = new Object[pkattrs.length]; |
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190 | this.pkNames = new String[pkattrs.length]; |
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191 | int n = 0; |
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192 | for (FeatureAttributeDescriptor pkattr : pkattrs) {
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193 | this.pk[n] = fdata.get(pkattr.getIndex());
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194 | this.pkNames[n] = pkattr.getName();
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195 | n++; |
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196 | } |
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197 | } |
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198 | 40435 | jjdelcerro | |
199 | 43358 | jjdelcerro | @Override
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200 | 40435 | jjdelcerro | public Feature getFeature() throws DataException { |
201 | return this.getStore().getFeatureByReference(this); |
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202 | } |
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203 | |||
204 | 43358 | jjdelcerro | @Override
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205 | 40435 | jjdelcerro | public Feature getFeature(FeatureType featureType) throws DataException { |
206 | return this.getStore().getFeatureByReference(this, featureType); |
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207 | } |
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208 | |||
209 | 43358 | jjdelcerro | @Override
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210 | 40435 | jjdelcerro | public Object getOID() { |
211 | return this.oid; |
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212 | } |
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213 | |||
214 | 43358 | jjdelcerro | @Override
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215 | 40435 | jjdelcerro | public boolean isNewFeature() { |
216 | return this.isNewFeature; |
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217 | } |
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218 | |||
219 | |||
220 | 43358 | jjdelcerro | @Override
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221 | 40435 | jjdelcerro | public boolean equals(Object obj) { |
222 | if (!(obj instanceof DefaultFeatureReference)) { |
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223 | return false; |
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224 | } |
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225 | DefaultFeatureReference other = (DefaultFeatureReference) obj; |
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226 | |||
227 | FeatureStore otherStore = (FeatureStore) other.storeRef.get(); |
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228 | FeatureStore myrStore = (FeatureStore) this.storeRef.get();
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229 | if (otherStore == null || myrStore == null) { |
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230 | return false; |
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231 | } |
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232 | if (!myrStore.equals(otherStore)) {
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233 | return false; |
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234 | } |
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235 | if (myHashCode != null && other.myHashCode != null) { |
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236 | return myHashCode.equals(other.myHashCode);
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237 | } |
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238 | if (this.oid != null) { |
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239 | return this.oid.equals(other.oid); |
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240 | } |
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241 | if(pk != null) { |
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242 | if(other.pk == null) { |
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243 | return false; |
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244 | } |
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245 | for (int i = 0; i < this.pk.length; i++) { |
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246 | if (!this.pk[i].equals(other.pk[i])) { |
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247 | return false; |
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248 | } |
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249 | } |
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250 | } |
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251 | return true; |
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252 | } |
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253 | |||
254 | 43358 | jjdelcerro | @Override
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255 | 40435 | jjdelcerro | public int hashCode() { |
256 | if (this.oid != null) { |
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257 | return this.oid.hashCode(); |
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258 | } |
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259 | if (myHashCode == null) { |
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260 | 43358 | jjdelcerro | StringBuilder buff = new StringBuilder(); |
261 | 40435 | jjdelcerro | |
262 | for (int i = 0; i < this.pk.length; i++) { |
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263 | 44488 | jjdelcerro | buff.append(Objects.hashCode(this.pk[i]));
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264 | 40435 | jjdelcerro | buff.append("##");
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265 | } |
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266 | 43358 | jjdelcerro | myHashCode = buff.toString().hashCode(); |
267 | 40435 | jjdelcerro | } |
268 | 43358 | jjdelcerro | return myHashCode;
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269 | 40435 | jjdelcerro | } |
270 | |||
271 | 43358 | jjdelcerro | @Override
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272 | 40435 | jjdelcerro | public String[] getKeyNames() { |
273 | return pkNames;
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274 | } |
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275 | |||
276 | 43358 | jjdelcerro | @Override
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277 | 40435 | jjdelcerro | public Object getKeyValue(String name) { |
278 | for (int i = 0; i < pkNames.length; i++) { |
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279 | if (pkNames[i].equalsIgnoreCase(name)) {
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280 | return pk[i];
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281 | } |
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282 | } |
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283 | // FIXME exception????
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284 | return null; |
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285 | } |
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286 | |||
287 | 43358 | jjdelcerro | @Override
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288 | 40435 | jjdelcerro | public String getFeatureTypeId() { |
289 | return featureTypeId;
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290 | } |
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291 | |||
292 | // *** Persistence ***
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293 | |||
294 | 43358 | jjdelcerro | @Override
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295 | 40435 | jjdelcerro | public void loadFromState(PersistentState state) |
296 | throws PersistenceException {
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297 | this.oid = state.get("oid"); |
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298 | this.myHashCode = (Integer) state.get("myHashCode"); |
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299 | this.storeRef = new WeakReference(state.get("store")); |
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300 | this.isNewFeature = state.getBoolean("isNewFeature"); |
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301 | this.featureTypeId = state.getString("featureTypeId"); |
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302 | List pkList = (List) state.get("pk"); |
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303 | if (pkList != null) { |
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304 | List pkNamesList = (List) state.get("pkNames"); |
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305 | if (pkNamesList == null || pkList.size() != pkNamesList.size()) { |
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306 | throw new PersistenceException("bad pkNames value"); |
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307 | } |
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308 | this.pk = pkList.toArray();
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309 | this.pkNames =
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310 | (String[]) pkNamesList.toArray(new String[pkList.size()]); |
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311 | } else {
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312 | this.pk = null; |
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313 | this.pkNames = null; |
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314 | } |
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315 | } |
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316 | |||
317 | 43358 | jjdelcerro | @Override
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318 | 40435 | jjdelcerro | public void saveToState(PersistentState state) throws PersistenceException { |
319 | state.set("oid", oid);
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320 | state.set("myHashCode", myHashCode);
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321 | state.set("isNewFeature", isNewFeature);
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322 | state.set("store", (Persistent) storeRef.get());
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323 | state.set("featureTypeId", featureTypeId);
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324 | if (pk == null) { |
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325 | state.setNull("pk");
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326 | state.setNull("pkNames");
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327 | } else {
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328 | state.set("pk", pk);
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329 | state.set("pkNames", pkNames);
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330 | } |
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331 | |||
332 | } |
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333 | 43824 | jjdelcerro | |
334 | @Override
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335 | public String getCode() { |
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336 | // JSONObject x = new JSONObject();
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337 | //// x.put("store", (Persistent) storeRef.get());
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338 | // x.put("oid", oid);
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339 | // x.put("myHashCode", myHashCode);
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340 | // x.put("isNewFeature", isNewFeature);
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341 | // x.put("featureTypeId", featureTypeId);
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342 | // if( this.pk == null ) {
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343 | // x.put("pkNames_size", -1);
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344 | // x.put("pkNames", JSONObject.NULL);
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345 | // x.put("pk", JSONObject.NULL);
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346 | // } else {
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347 | // x.put("pkNames_size", pkNames.length);
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348 | // x.put("pkNames", new JSONArray(this.pkNames));
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349 | // x.put("pk", new JSONArray(this.pk));
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350 | // }
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351 | //
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352 | Object[] data = new Object[7]; |
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353 | data[OID_INDEX] = this.oid;
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354 | data[MYHASHCODE_INDEX] = this.myHashCode;
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355 | data[ISNEWFEATURE_INDEX] = this.isNewFeature;
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356 | data[FEATURETYPEID_INDEX] = this.featureTypeId;
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357 | if( this.pk == null ) { |
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358 | data[PKNAMES_SIZE_INDEX] = -1;
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359 | data[PKNAMES_INDEX] = JSONObject.NULL; |
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360 | data[PK_INDEX] = JSONObject.NULL; |
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361 | } else {
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362 | data[PKNAMES_SIZE_INDEX] = pkNames.length; |
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363 | data[PKNAMES_INDEX] = new JSONArray(this.pkNames); |
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364 | data[PK_INDEX] = new JSONArray(this.pk); |
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365 | } |
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366 | String s = new JSONArray(data).toString(); |
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367 | String r = Base64.getEncoder().encodeToString(s.getBytes());
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368 | |||
369 | return r;
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370 | } |
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371 | 40435 | jjdelcerro | |
372 | public static void registerPersistent() { |
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373 | DynStruct definition = ToolsLocator.getPersistenceManager().addDefinition( |
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374 | DefaultFeatureReference.class, |
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375 | "Reference",
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376 | "DefaultFeatureReference Persistent definition",
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377 | null,
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378 | null
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379 | ); |
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380 | |||
381 | definition.addDynFieldObject("oid")
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382 | .setClassOfValue(Object.class)
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383 | .setMandatory(false)
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384 | .setPersistent(true);
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385 | |||
386 | definition.addDynFieldBoolean("isNewFeature")
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387 | .setMandatory(true)
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388 | .setPersistent(true);
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389 | |||
390 | definition.addDynFieldObject("store")
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391 | .setClassOfValue(FeatureStore.class) |
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392 | .setMandatory(true)
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393 | .setPersistent(true);
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394 | |||
395 | definition.addDynFieldInt("myHashCode")
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396 | .setMandatory(false)
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397 | .setPersistent(true);
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398 | |||
399 | definition.addDynFieldString("featureTypeId")
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400 | .setMandatory(true)
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401 | .setPersistent(true);
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402 | |||
403 | definition.addDynFieldArray("pk")
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404 | .setClassOfItems(Object.class)
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405 | .setMandatory(false)
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406 | .setPersistent(true);
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407 | |||
408 | definition.addDynFieldArray("pkNames")
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409 | .setClassOfItems(String.class)
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410 | .setMandatory(false)
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411 | .setPersistent(true);
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412 | |||
413 | } |
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414 | |||
415 | 43243 | jjdelcerro | @Override
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416 | 40435 | jjdelcerro | public String toString() { |
417 | 43243 | jjdelcerro | StringBuilder builder = new StringBuilder(); |
418 | builder.append("FeatureReference: oid = ");
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419 | builder.append(oid); |
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420 | if( myHashCode!=null ) { |
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421 | builder.append(", myHashCode = ");
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422 | builder.append(myHashCode); |
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423 | } |
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424 | if( pk!=null ) { |
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425 | builder.append(", pks = ");
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426 | builder.append(Arrays.asList(pk));
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427 | } |
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428 | if( pkNames!=null ) { |
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429 | builder.append(", pkNames = ");
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430 | builder.append(Arrays.asList(pkNames));
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431 | } |
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432 | if( isNewFeature ) {
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433 | builder.append(", isNew = ");
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434 | builder.append(isNewFeature); |
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435 | } |
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436 | if( featureTypeId!=null ) { |
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437 | builder.append(", featureTypeId = ");
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438 | builder.append(featureTypeId); |
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439 | } |
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440 | return builder.toString();
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441 | 40435 | jjdelcerro | } |
442 | |||
443 | } |