svn-gvsig-desktop / trunk / libraries / libDataSourceDBBaseDrivers / src / org / gvsig / data / datastores / vectorial / db / jdbc / JDBCStore.java @ 20376
History | View | Annotate | Download (8.82 KB)
| 1 |
package org.gvsig.data.datastores.vectorial.db.jdbc; |
|---|---|
| 2 |
|
| 3 |
import java.sql.Connection; |
| 4 |
import java.sql.ResultSet; |
| 5 |
import java.sql.Statement; |
| 6 |
import java.util.ArrayList; |
| 7 |
import java.util.Iterator; |
| 8 |
import java.util.List; |
| 9 |
|
| 10 |
import org.gvsig.data.commands.implementation.AbstractAttributeCommand; |
| 11 |
import org.gvsig.data.commands.implementation.AbstractFeatureCommand; |
| 12 |
import org.gvsig.data.commands.implementation.UpdateAttributeCommand; |
| 13 |
import org.gvsig.data.commands.implementation.UpdateFeatureCommand; |
| 14 |
import org.gvsig.data.datastores.vectorial.ISelectiveWriter; |
| 15 |
import org.gvsig.data.datastores.vectorial.db.DBFeatureID; |
| 16 |
import org.gvsig.data.datastores.vectorial.db.DBFeatureType; |
| 17 |
import org.gvsig.data.datastores.vectorial.db.jdbc.exception.SQLException; |
| 18 |
import org.gvsig.data.datastores.vectorial.db.jdbc.h2.H2Utils; |
| 19 |
import org.gvsig.data.exception.DataException; |
| 20 |
import org.gvsig.data.exception.InitializeWriterException; |
| 21 |
import org.gvsig.data.exception.ReadException; |
| 22 |
import org.gvsig.data.exception.WriteException; |
| 23 |
import org.gvsig.data.vectorial.AbstractFeatureStore; |
| 24 |
import org.gvsig.data.vectorial.CreatedFeature; |
| 25 |
import org.gvsig.data.vectorial.IFeature; |
| 26 |
import org.gvsig.data.vectorial.IFeatureAttributeDescriptor; |
| 27 |
import org.gvsig.data.vectorial.IFeatureID; |
| 28 |
import org.gvsig.data.vectorial.IFeatureType; |
| 29 |
import org.gvsig.metadata.IMetadata; |
| 30 |
import org.gvsig.metadata.IMetadataManager; |
| 31 |
import org.gvsig.metadata.MetadataManager; |
| 32 |
|
| 33 |
public abstract class JDBCStore extends AbstractFeatureStore { |
| 34 |
|
| 35 |
protected Connection connection = null; |
| 36 |
protected String sqlSelectPart; |
| 37 |
protected String baseWhereClause = null; |
| 38 |
protected String baseOrder = null; |
| 39 |
protected String sqlSource = null; |
| 40 |
protected boolean useSqlSource = false; |
| 41 |
protected DBFeatureType featureType;
|
| 42 |
protected IMetadata metadata;
|
| 43 |
|
| 44 |
|
| 45 |
protected abstract Connection getConnection(); |
| 46 |
|
| 47 |
protected abstract IFeature newFeatureInstance(DBFeatureType featureType,Object[] pk); |
| 48 |
|
| 49 |
protected abstract void loadValueFromResulset(ResultSet rs,IFeature feature,IFeatureAttributeDescriptor attr) throws ReadException; |
| 50 |
|
| 51 |
public boolean isEditable() { |
| 52 |
return !this.useSqlSource; |
| 53 |
} |
| 54 |
|
| 55 |
|
| 56 |
public String getSqlSelectPart() { |
| 57 |
return sqlSelectPart;
|
| 58 |
} |
| 59 |
|
| 60 |
public String getBaseOrder() { |
| 61 |
return this.baseOrder; |
| 62 |
} |
| 63 |
|
| 64 |
public String getBaseWhereClause() { |
| 65 |
return baseWhereClause;
|
| 66 |
} |
| 67 |
|
| 68 |
public boolean isUseSqlSource() { |
| 69 |
return this.useSqlSource; |
| 70 |
} |
| 71 |
|
| 72 |
public String getSqlSource() { |
| 73 |
return this.sqlSource; |
| 74 |
} |
| 75 |
|
| 76 |
protected abstract JDBCFeaturesWriter getFeaturesWriter() throws InitializeWriterException; |
| 77 |
|
| 78 |
protected void doFinishEdition() throws WriteException, ReadException { |
| 79 |
Iterator commandsfeatures = null; |
| 80 |
JDBCFeaturesWriter selectiveWriter = getFeaturesWriter(); |
| 81 |
IFeatureType type = getDefaultFeatureType(); |
| 82 |
|
| 83 |
|
| 84 |
selectiveWriter.updateFeatureType(type); |
| 85 |
selectiveWriter.preProcess(); |
| 86 |
|
| 87 |
try{
|
| 88 |
commandsfeatures = commands.getCommandsAttributeDeleted().iterator(); |
| 89 |
while( commandsfeatures.hasNext() ) {
|
| 90 |
Object obj=commandsfeatures.next();
|
| 91 |
if (obj instanceof AbstractAttributeCommand){ |
| 92 |
IFeatureAttributeDescriptor attribute = ((AbstractAttributeCommand)obj).getAttributeDescriptor(); |
| 93 |
selectiveWriter.deleteAttribute(attribute); |
| 94 |
} |
| 95 |
} |
| 96 |
commandsfeatures = commands.getCommandsAttributeUpdated().iterator(); |
| 97 |
while( commandsfeatures.hasNext() ) {
|
| 98 |
Object obj=commandsfeatures.next();
|
| 99 |
if (obj instanceof AbstractAttributeCommand){ |
| 100 |
IFeatureAttributeDescriptor oldAttribute = ((UpdateAttributeCommand)obj).getOldAttributeDescriptor(); |
| 101 |
IFeatureAttributeDescriptor attribute = ((UpdateAttributeCommand)obj).getAttributeDescriptor(); |
| 102 |
selectiveWriter.updateAttribute(oldAttribute,attribute); |
| 103 |
} |
| 104 |
} |
| 105 |
commandsfeatures = commands.getCommandsAttributeInserted().iterator(); |
| 106 |
while( commandsfeatures.hasNext() ) {
|
| 107 |
Object obj=commandsfeatures.next();
|
| 108 |
if (obj instanceof AbstractAttributeCommand){ |
| 109 |
IFeatureAttributeDescriptor attribute = ((AbstractAttributeCommand)obj).getAttributeDescriptor(); |
| 110 |
selectiveWriter.insertAttribute(attribute); |
| 111 |
} |
| 112 |
} |
| 113 |
|
| 114 |
|
| 115 |
commandsfeatures = commands.getCommandsFeatureDeleted().iterator(); |
| 116 |
while( commandsfeatures.hasNext() ) {
|
| 117 |
Object obj=commandsfeatures.next();
|
| 118 |
if (obj instanceof AbstractFeatureCommand){ |
| 119 |
IFeature feature = ((AbstractFeatureCommand)obj).getFeature(); |
| 120 |
if (feature instanceof CreatedFeature) |
| 121 |
continue;
|
| 122 |
|
| 123 |
selectiveWriter.deleteFeature(feature); |
| 124 |
} |
| 125 |
} |
| 126 |
commandsfeatures = commands.getCommandsFeatureUpdated().iterator(); |
| 127 |
while( commandsfeatures.hasNext() ) {
|
| 128 |
Object obj=commandsfeatures.next();
|
| 129 |
if (obj instanceof AbstractFeatureCommand){ |
| 130 |
IFeature oldFeature = ((UpdateFeatureCommand)obj).getOldFeature(); |
| 131 |
IFeature feature = ((UpdateFeatureCommand)obj).getFeature(); |
| 132 |
if (featureManager.isDeleted(feature)){
|
| 133 |
continue;
|
| 134 |
} |
| 135 |
selectiveWriter.updateFeature(oldFeature,feature); |
| 136 |
} |
| 137 |
} |
| 138 |
commandsfeatures = commands.getCommandsFeatureInserted().iterator(); |
| 139 |
while( commandsfeatures.hasNext() ) {
|
| 140 |
Object obj=commandsfeatures.next();
|
| 141 |
if (obj instanceof AbstractFeatureCommand){ |
| 142 |
IFeature feature = ((AbstractFeatureCommand)obj).getFeature(); |
| 143 |
if (featureManager.isDeleted(feature)){
|
| 144 |
continue;
|
| 145 |
} |
| 146 |
selectiveWriter.insertFeature(feature); |
| 147 |
} |
| 148 |
} |
| 149 |
selectiveWriter.postProcess(); |
| 150 |
|
| 151 |
}catch (ReadException e) {
|
| 152 |
selectiveWriter.cancelProcess(); |
| 153 |
throw e;
|
| 154 |
} catch (WriteException e){
|
| 155 |
selectiveWriter.cancelProcess(); |
| 156 |
throw e;
|
| 157 |
} catch (Exception e){ |
| 158 |
selectiveWriter.cancelProcess(); |
| 159 |
throw new WriteException(this.getName(),e); |
| 160 |
} |
| 161 |
} |
| 162 |
|
| 163 |
public String getFilterForID(DBFeatureType fType, Object[] featureKey) { |
| 164 |
if (fType.getFieldsId().length != 1) |
| 165 |
throw new UnsupportedOperationException("ID fields > 1"); |
| 166 |
String id =fType.getFieldsId()[0]; |
| 167 |
return id + " = " + objectToSqlString(featureKey[0]); |
| 168 |
} |
| 169 |
|
| 170 |
protected String objectToSqlString(Object obj) { |
| 171 |
if (obj instanceof String){ |
| 172 |
return "'"+ scapeString((String)obj) +"'"; |
| 173 |
} else if (obj == null){ |
| 174 |
return "null"; |
| 175 |
}else{
|
| 176 |
// OJO con otros tipos!!
|
| 177 |
return obj.toString();
|
| 178 |
} |
| 179 |
|
| 180 |
} |
| 181 |
|
| 182 |
protected String scapeString(String str) { |
| 183 |
return str.replace("'", "''"); |
| 184 |
} |
| 185 |
|
| 186 |
public IFeature getFeatureByID(IFeatureID id) throws ReadException { |
| 187 |
return getFeatureByID((DBFeatureType)this.getDefaultFeatureType(),((DBFeatureID)id).getKey()); |
| 188 |
} |
| 189 |
|
| 190 |
public IFeatureType getDefaultFeatureType() {
|
| 191 |
return this.featureType; |
| 192 |
} |
| 193 |
|
| 194 |
public IMetadata getMetadata() {
|
| 195 |
if (metadata==null){ |
| 196 |
IMetadataManager manager=MetadataManager.getManager(); |
| 197 |
metadata=manager.create(this.getName());
|
| 198 |
//TODO: Apadir los meteadatos
|
| 199 |
} |
| 200 |
return metadata;
|
| 201 |
} |
| 202 |
|
| 203 |
public List getFeatureTypes() { |
| 204 |
ArrayList list = new ArrayList(); |
| 205 |
list.add(this.featureType);
|
| 206 |
return list;
|
| 207 |
} |
| 208 |
|
| 209 |
public boolean isWithDefaultLegend() { |
| 210 |
// TODO Auto-generated method stub
|
| 211 |
return false; |
| 212 |
} |
| 213 |
|
| 214 |
public Object getDefaultLabelingStrategy() { |
| 215 |
// TODO Auto-generated method stub
|
| 216 |
return null; |
| 217 |
} |
| 218 |
|
| 219 |
public Object getDefaultLegend() { |
| 220 |
// TODO Auto-generated method stub
|
| 221 |
return null; |
| 222 |
} |
| 223 |
|
| 224 |
public IFeature getFeatureByID(IFeatureType featureType2, Object[] featureKey) throws ReadException { |
| 225 |
//TODO: Tener en cuenta el FeatureType por si es distinto
|
| 226 |
if (useSqlSource){
|
| 227 |
throw new ReadException("Unsuported featureByID in sqlSource mode",this.getName()); |
| 228 |
} |
| 229 |
ResultSet rs=null; |
| 230 |
try{
|
| 231 |
this.open();
|
| 232 |
Statement st=this.getConnection().createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); |
| 233 |
String sql = this.getSqlSelectPart() + " WHERE "+ this.getFilterForID(this.featureType, featureKey); |
| 234 |
rs=st.executeQuery(sql); |
| 235 |
if(rs.next()){
|
| 236 |
return createFeature(rs, this.featureType); |
| 237 |
} |
| 238 |
|
| 239 |
} catch (java.sql.SQLException e) {
|
| 240 |
e.printStackTrace(); |
| 241 |
throw new ReadException(this.getName(), e); |
| 242 |
} finally{
|
| 243 |
if (rs != null) |
| 244 |
try {
|
| 245 |
rs.close(); |
| 246 |
} catch (java.sql.SQLException e) {
|
| 247 |
// TODO ?????
|
| 248 |
e.printStackTrace(); |
| 249 |
} |
| 250 |
} |
| 251 |
return null; |
| 252 |
} |
| 253 |
|
| 254 |
protected Object[] getPkFromResulset(ResultSet rs, DBFeatureType featureType) throws java.sql.SQLException{ |
| 255 |
String[] fieldsId = featureType.getFieldsId(); |
| 256 |
Object[] result = new Object[fieldsId.length]; |
| 257 |
for (int i=0;i<fieldsId.length;i++){ |
| 258 |
result[i] = rs.getObject(fieldsId[i]); |
| 259 |
} |
| 260 |
return result;
|
| 261 |
|
| 262 |
} |
| 263 |
|
| 264 |
protected IFeature createFeature(ResultSet rs, DBFeatureType featureType2) throws ReadException { |
| 265 |
JDBCFeature feature=null;
|
| 266 |
|
| 267 |
if (featureType2 == null){ |
| 268 |
featureType2 = (DBFeatureType)this.getDefaultFeatureType();
|
| 269 |
} |
| 270 |
|
| 271 |
|
| 272 |
Object[] pk; |
| 273 |
try {
|
| 274 |
pk = getPkFromResulset(rs, featureType2); |
| 275 |
|
| 276 |
feature=(JDBCFeature)this.newFeatureInstance(featureType2, pk);
|
| 277 |
|
| 278 |
Iterator iter = featureType2.iterator();
|
| 279 |
while (iter.hasNext()) {
|
| 280 |
IFeatureAttributeDescriptor fad=(IFeatureAttributeDescriptor)iter.next(); |
| 281 |
this.loadValueFromResulset(rs, feature, fad);
|
| 282 |
|
| 283 |
} |
| 284 |
return feature;
|
| 285 |
} catch (java.sql.SQLException e) {
|
| 286 |
throw new ReadException(this.getName(),e); |
| 287 |
} |
| 288 |
|
| 289 |
} |
| 290 |
} |