root / trunk / libraries / libDataSourceDBBaseDrivers / src / org / gvsig / data / datastores / vectorial / driver / jdbc / h2 / H2DriverUtils.java @ 19626
History | View | Annotate | Download (11.7 KB)
| 1 |
package org.gvsig.data.datastores.vectorial.driver.jdbc.h2; |
|---|---|
| 2 |
|
| 3 |
import java.sql.Connection; |
| 4 |
import java.sql.DriverManager; |
| 5 |
import java.sql.ResultSet; |
| 6 |
import java.sql.ResultSetMetaData; |
| 7 |
import java.sql.Statement; |
| 8 |
import java.util.Iterator; |
| 9 |
|
| 10 |
import org.gvsig.data.datastores.vectorial.driver.jdbc.DBFeatureType; |
| 11 |
import org.gvsig.data.datastores.vectorial.driver.jdbc.exception.JDBCDriverNotFoundException; |
| 12 |
import org.gvsig.data.datastores.vectorial.driver.jdbc.exception.SQLException; |
| 13 |
import org.gvsig.data.exception.InitializeException; |
| 14 |
import org.gvsig.data.exception.ReadException; |
| 15 |
import org.gvsig.data.vectorial.DefaultAttributeDescriptor; |
| 16 |
import org.gvsig.data.vectorial.IFeature; |
| 17 |
import org.gvsig.data.vectorial.IFeatureAttributeDescriptor; |
| 18 |
|
| 19 |
import com.iver.cit.gvsig.fmap.core.FShape; |
| 20 |
import com.iver.cit.gvsig.fmap.core.IGeometry; |
| 21 |
import com.iver.cit.gvsig.fmap.drivers.WKBParser2; |
| 22 |
|
| 23 |
public class H2DriverUtils { |
| 24 |
private static WKBParser2 wkbParser = new WKBParser2(); |
| 25 |
|
| 26 |
static DBFeatureType getFeatureType(Connection conn,H2DriverParameters params) throws ReadException{ |
| 27 |
String sql=""; |
| 28 |
String columns=params.getFields();
|
| 29 |
|
| 30 |
if (columns == null || columns == ""){ |
| 31 |
columns = "*";
|
| 32 |
} |
| 33 |
|
| 34 |
|
| 35 |
try {
|
| 36 |
sql = "Select "+columns+" from " + params.tableID() + " limit 1;"; |
| 37 |
Statement stAux = conn.createStatement();
|
| 38 |
Statement stAux1 = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); |
| 39 |
ResultSet rs = stAux.executeQuery(sql);
|
| 40 |
ResultSetMetaData rsMetadata = rs.getMetaData();
|
| 41 |
String schemaFilter=""; |
| 42 |
if (params.getSchema() != null && params.getSchema() != ""){ |
| 43 |
schemaFilter = " TABLE_SCHEMA='" + params.getSchema() +"' AND "; |
| 44 |
} |
| 45 |
String sqlAllMeta = "SELECT * FROM INFORMATION_SCHEMA.COLUMNS where " |
| 46 |
+ schemaFilter |
| 47 |
+ "TABLE_NAME='"+ params.getTableName() +"'"; |
| 48 |
|
| 49 |
ResultSet rsAllMeta = stAux1.executeQuery(sqlAllMeta);
|
| 50 |
|
| 51 |
// ResultSet rsAllMeta = conn.getMetaData().getAttributes(null, null, tableName, "*");
|
| 52 |
|
| 53 |
String colName;
|
| 54 |
int i;
|
| 55 |
DBFeatureType featureType = new DBFeatureType();
|
| 56 |
featureType.setTableID(params.tableID()); |
| 57 |
DefaultAttributeDescriptor attr; |
| 58 |
for (i=1;i<=rsMetadata.getColumnCount();i++){ |
| 59 |
colName= rsMetadata.getColumnName(i); |
| 60 |
rsAllMeta.first(); |
| 61 |
|
| 62 |
while (true){ |
| 63 |
if (rsAllMeta.isAfterLast()){
|
| 64 |
attr = getAttributeFromJDBC(conn,rsMetadata,i); |
| 65 |
featureType.add(attr); |
| 66 |
attr.setOrdinal(i-1);
|
| 67 |
break;
|
| 68 |
} else if(rsAllMeta.getString("COLUMN_NAME").equals(colName)){ |
| 69 |
attr = getAttributeFromJDBC(conn,rsAllMeta); |
| 70 |
featureType.add(attr); |
| 71 |
attr.setOrdinal(i-1);
|
| 72 |
break;
|
| 73 |
} |
| 74 |
rsAllMeta.next(); |
| 75 |
} |
| 76 |
if (attr.getName().equals(params.getGeometryField())){
|
| 77 |
if (attr.getDataType().equals(IFeatureAttributeDescriptor.TYPE_OBJECT)){
|
| 78 |
attr.setType(IFeatureAttributeDescriptor.TYPE_GEOMETRY); |
| 79 |
}else{
|
| 80 |
throw new InitializeException( |
| 81 |
"H2DriverUtils.getFeatureType",
|
| 82 |
new Exception("Geometry Field '" |
| 83 |
+ params.getGeometryField() |
| 84 |
+ "' is a "
|
| 85 |
+ attr.getDataType() |
| 86 |
+ " but sould be "
|
| 87 |
+ IFeatureAttributeDescriptor.TYPE_OBJECT)); |
| 88 |
} |
| 89 |
|
| 90 |
} |
| 91 |
} |
| 92 |
|
| 93 |
rs.close(); |
| 94 |
rsAllMeta.close(); |
| 95 |
|
| 96 |
return featureType;
|
| 97 |
} catch (java.sql.SQLException e) {
|
| 98 |
// TODO Auto-generated catch block
|
| 99 |
throw new SQLException(sql,"getFeatureType",e); |
| 100 |
} |
| 101 |
|
| 102 |
} |
| 103 |
|
| 104 |
private static DefaultAttributeDescriptor getAttributeFromJDBC(Connection conn,ResultSetMetaData rsMetadata,int colIndex) throws SQLException{ |
| 105 |
DefaultAttributeDescriptor column= new DefaultAttributeDescriptor();
|
| 106 |
try {
|
| 107 |
column.setName(rsMetadata.getColumnName(colIndex)); |
| 108 |
switch (rsMetadata.getColumnType(colIndex)) {
|
| 109 |
case java.sql.Types.INTEGER:
|
| 110 |
column.setType(IFeatureAttributeDescriptor.TYPE_INT); |
| 111 |
break;
|
| 112 |
case java.sql.Types.BIGINT:
|
| 113 |
column.setType(IFeatureAttributeDescriptor.TYPE_LONG); |
| 114 |
break;
|
| 115 |
case java.sql.Types.REAL:
|
| 116 |
column.setType(IFeatureAttributeDescriptor.TYPE_DOUBLE); |
| 117 |
// column.setPrecision(rsMetadata.getInt("DECIMAL_DIGITS"));
|
| 118 |
break;
|
| 119 |
case java.sql.Types.DOUBLE:
|
| 120 |
column.setType(IFeatureAttributeDescriptor.TYPE_DOUBLE); |
| 121 |
// column.setPrecision(rsMetadata.getInt("DECIMAL_DIGITS"));
|
| 122 |
break;
|
| 123 |
case java.sql.Types.CHAR:
|
| 124 |
column.setType(IFeatureAttributeDescriptor.TYPE_STRING); |
| 125 |
column.setSize(rsMetadata.getColumnDisplaySize(colIndex)); |
| 126 |
break;
|
| 127 |
case java.sql.Types.VARCHAR:
|
| 128 |
column.setType(IFeatureAttributeDescriptor.TYPE_STRING); |
| 129 |
column.setSize(rsMetadata.getColumnDisplaySize(colIndex)); |
| 130 |
break;
|
| 131 |
case java.sql.Types.FLOAT:
|
| 132 |
column.setType(IFeatureAttributeDescriptor.TYPE_FLOAT); |
| 133 |
column.setSize(rsMetadata.getColumnDisplaySize(colIndex)); |
| 134 |
break;
|
| 135 |
case java.sql.Types.DECIMAL:
|
| 136 |
column.setType(IFeatureAttributeDescriptor.TYPE_FLOAT); |
| 137 |
column.setSize(rsMetadata.getColumnDisplaySize(colIndex)); |
| 138 |
// column.setPrecision(rsMetadata.getInt("DECIMAL_DIGITS"));
|
| 139 |
break;
|
| 140 |
case java.sql.Types.DATE:
|
| 141 |
column.setType(IFeatureAttributeDescriptor.TYPE_DATE); |
| 142 |
break;
|
| 143 |
case java.sql.Types.BOOLEAN:
|
| 144 |
column.setType(IFeatureAttributeDescriptor.TYPE_BOOLEAN); |
| 145 |
break;
|
| 146 |
default:
|
| 147 |
column.setType(IFeatureAttributeDescriptor.TYPE_OBJECT); |
| 148 |
break;
|
| 149 |
} |
| 150 |
} catch (java.sql.SQLException e){
|
| 151 |
throw new SQLException("","load attribute definition",e); |
| 152 |
} |
| 153 |
|
| 154 |
return column;
|
| 155 |
|
| 156 |
} |
| 157 |
|
| 158 |
private static DefaultAttributeDescriptor getAttributeFromJDBC(Connection conn, ResultSet rsMetadata) throws SQLException{ |
| 159 |
DefaultAttributeDescriptor column= new DefaultAttributeDescriptor();
|
| 160 |
try {
|
| 161 |
column.setName(rsMetadata.getString("COLUMN_NAME"));
|
| 162 |
switch (rsMetadata.getInt("DATA_TYPE")) { |
| 163 |
case java.sql.Types.INTEGER:
|
| 164 |
column.setType(IFeatureAttributeDescriptor.TYPE_INT); |
| 165 |
break;
|
| 166 |
case java.sql.Types.BIGINT:
|
| 167 |
column.setType(IFeatureAttributeDescriptor.TYPE_LONG); |
| 168 |
break;
|
| 169 |
case java.sql.Types.REAL:
|
| 170 |
column.setType(IFeatureAttributeDescriptor.TYPE_DOUBLE); |
| 171 |
// column.setPrecision(rsMetadata.getInt("DECIMAL_DIGITS"));
|
| 172 |
column.setPrecision(rsMetadata.getInt("NUMERIC_PRECISION"));
|
| 173 |
break;
|
| 174 |
case java.sql.Types.DOUBLE:
|
| 175 |
column.setType(IFeatureAttributeDescriptor.TYPE_DOUBLE); |
| 176 |
// column.setPrecision(rsMetadata.getInt("DECIMAL_DIGITS"));
|
| 177 |
column.setPrecision(rsMetadata.getInt("NUMERIC_PRECISION"));
|
| 178 |
break;
|
| 179 |
case java.sql.Types.CHAR:
|
| 180 |
column.setType(IFeatureAttributeDescriptor.TYPE_STRING); |
| 181 |
// column.setSize(rsMetadata.getInt("COLUMN_SIZE"));
|
| 182 |
column.setSize(rsMetadata.getInt("CHARACTER_MAXIMUM_LENGTH"));
|
| 183 |
break;
|
| 184 |
case java.sql.Types.VARCHAR:
|
| 185 |
column.setType(IFeatureAttributeDescriptor.TYPE_STRING); |
| 186 |
// column.setSize(rsMetadata.getInt("COLUMN_SIZE"));
|
| 187 |
column.setSize(rsMetadata.getInt("CHARACTER_MAXIMUM_LENGTH"));
|
| 188 |
|
| 189 |
break;
|
| 190 |
case java.sql.Types.FLOAT:
|
| 191 |
column.setType(IFeatureAttributeDescriptor.TYPE_FLOAT); |
| 192 |
// column.setSize(rsMetadata.getInt("COLUMN_SIZE"));
|
| 193 |
column.setSize(rsMetadata.getInt("CHARACTER_MAXIMUM_LENGTH"));
|
| 194 |
break;
|
| 195 |
case java.sql.Types.DECIMAL:
|
| 196 |
column.setType(IFeatureAttributeDescriptor.TYPE_FLOAT); |
| 197 |
// column.setSize(rsMetadata.getInt("COLUMN_SIZE"));
|
| 198 |
column.setSize(rsMetadata.getInt("CHARACTER_MAXIMUM_LENGTH"));
|
| 199 |
// column.setPrecision(rsMetadata.getInt("DECIMAL_DIGITS"));
|
| 200 |
column.setPrecision(rsMetadata.getInt("NUMERIC_PRECISION"));
|
| 201 |
break;
|
| 202 |
case java.sql.Types.DATE:
|
| 203 |
column.setType(IFeatureAttributeDescriptor.TYPE_DATE); |
| 204 |
break;
|
| 205 |
case java.sql.Types.BOOLEAN:
|
| 206 |
column.setType(IFeatureAttributeDescriptor.TYPE_BOOLEAN); |
| 207 |
break;
|
| 208 |
default:
|
| 209 |
//FIXME: Falta comprobar si es geometrica!!!
|
| 210 |
column.setType(IFeatureAttributeDescriptor.TYPE_OBJECT); |
| 211 |
break;
|
| 212 |
} |
| 213 |
column.setDefaultValue(rsMetadata.getObject("COLUMN_DEFAULT"));
|
| 214 |
column.setAllowNull(rsMetadata.getBoolean("IS_NULLABLE"));
|
| 215 |
} catch (java.sql.SQLException e){
|
| 216 |
throw new SQLException("","load attribute definition",e); |
| 217 |
} |
| 218 |
|
| 219 |
return column;
|
| 220 |
|
| 221 |
} |
| 222 |
|
| 223 |
|
| 224 |
|
| 225 |
static void initializeTableEPSG_and_shapeType(Connection conn,String tableID, DBFeatureType dbld) throws ReadException { |
| 226 |
try {
|
| 227 |
Statement stAux = conn.createStatement();
|
| 228 |
|
| 229 |
// String sql = "SELECT * FROM GEOMETRY_COLUMNS WHERE F_TABLE_NAME = '"
|
| 230 |
// + getTableName() + "' AND F_GEOMETRY_COLUMN = '" + getLyrDef().getFieldGeometry() + "'";
|
| 231 |
String sql= "SELECT SRID("+dbld.getDefaultGeometry()+"), GeometryType("+dbld.getDefaultGeometry()+") FROM "+tableID +" WHERE "+dbld.getDefaultGeometry()+" is not null LIMIT 1"; |
| 232 |
|
| 233 |
ResultSet rs = stAux.executeQuery(sql);
|
| 234 |
if(!rs.next()){
|
| 235 |
dbld.setDefaultSRS("");
|
| 236 |
dbld.setGeometryTypes(new int[]{FShape.MULTI}); |
| 237 |
return;
|
| 238 |
} |
| 239 |
dbld.setDefaultSRS("EPSG:"+rs.getInt(1)); |
| 240 |
|
| 241 |
String geometryType = rs.getString(2); |
| 242 |
int shapeType = FShape.MULTI;
|
| 243 |
if (geometryType.compareToIgnoreCase("Point") == 0) |
| 244 |
shapeType = FShape.POINT; |
| 245 |
else if (geometryType.compareToIgnoreCase("LineString") == 0) |
| 246 |
shapeType = FShape.LINE; |
| 247 |
else if (geometryType.compareToIgnoreCase("Polygon") == 0) |
| 248 |
shapeType = FShape.POLYGON; |
| 249 |
else if (geometryType.compareToIgnoreCase("MultiPoint") == 0) |
| 250 |
shapeType = FShape.POINT; |
| 251 |
else if (geometryType.compareToIgnoreCase("MultiLineString") == 0) |
| 252 |
shapeType = FShape.LINE; |
| 253 |
else if (geometryType.compareToIgnoreCase("MultiPolygon") == 0) |
| 254 |
shapeType = FShape.POLYGON; |
| 255 |
|
| 256 |
dbld.setGeometryTypes(new int[]{shapeType}); |
| 257 |
rs.close(); |
| 258 |
|
| 259 |
} catch (java.sql.SQLException e) {
|
| 260 |
dbld.setDefaultSRS("");
|
| 261 |
dbld.setGeometryTypes(new int[]{FShape.MULTI}); |
| 262 |
throw new ReadException("H2DriverUtils.getTableEPSG_and_shapeType",e); |
| 263 |
} |
| 264 |
|
| 265 |
} |
| 266 |
|
| 267 |
static String getConnectionResourceID(String dbUrl,String dbUser){ |
| 268 |
return H2Driver.DRIVER_NAME+";"+dbUrl+";"+dbUser; |
| 269 |
|
| 270 |
} |
| 271 |
|
| 272 |
|
| 273 |
static String getJDBCUrl(String host,String db){ |
| 274 |
String url;
|
| 275 |
url = "jdbc:h2:tcp://"+host;
|
| 276 |
if (db == null || db == ""){ |
| 277 |
url=url+"/default";
|
| 278 |
}else {
|
| 279 |
url=url+"/"+db;
|
| 280 |
} |
| 281 |
|
| 282 |
return url;
|
| 283 |
} |
| 284 |
|
| 285 |
static Connection getConnection(String dbUrl,String dbUser, String dbPass) throws InitializeException{ |
| 286 |
//TODO: Aqu? habria que implementar la llamada
|
| 287 |
// al Resource Manager para comprobar si ya hay
|
| 288 |
// una connexion a la BD
|
| 289 |
String connID = getConnectionResourceID(dbUrl, dbUser);
|
| 290 |
|
| 291 |
Connection conn = null; |
| 292 |
// IResource res = ResourceManager.getResourceManager().getResource(connID);
|
| 293 |
|
| 294 |
|
| 295 |
|
| 296 |
try {
|
| 297 |
Class.forName("org.h2.Driver"); |
| 298 |
} catch (ClassNotFoundException e) { |
| 299 |
throw new JDBCDriverNotFoundException("org.h2.Driver",e); |
| 300 |
} |
| 301 |
try {
|
| 302 |
conn = DriverManager.getConnection(dbUrl, dbUser, dbPass);
|
| 303 |
conn.setAutoCommit(false);
|
| 304 |
|
| 305 |
} catch (java.sql.SQLException e1) {
|
| 306 |
throw new InitializeException("H2Driver",e1); |
| 307 |
} |
| 308 |
//TODO: Registrar en el Resource manager
|
| 309 |
// ResourceManager.getResourceManager().addResource(res);
|
| 310 |
|
| 311 |
return conn;
|
| 312 |
} |
| 313 |
|
| 314 |
static IFeature createFeature(H2Driver driver,ResultSet rs,DBFeatureType featureType) throws ReadException{ |
| 315 |
|
| 316 |
H2Feature feature=null;
|
| 317 |
|
| 318 |
|
| 319 |
String pk;
|
| 320 |
try {
|
| 321 |
pk = rs.getString(featureType.getFieldId()); |
| 322 |
|
| 323 |
feature=new H2Feature(featureType,driver,pk);
|
| 324 |
|
| 325 |
Iterator iter = featureType.iterator();
|
| 326 |
|
| 327 |
while (iter.hasNext()) {
|
| 328 |
IFeatureAttributeDescriptor fad=(IFeatureAttributeDescriptor)iter.next(); |
| 329 |
if (fad.getDataType().equals(IFeatureAttributeDescriptor.TYPE_GEOMETRY)) {
|
| 330 |
byte[] data = rs.getBytes(fad.getName()); |
| 331 |
IGeometry geom = wkbParser.parse(data); |
| 332 |
feature.setDefaultGeometry(geom); |
| 333 |
feature.set(fad.getName(),geom); |
| 334 |
} else {
|
| 335 |
feature.set(fad.getName(), rs.getObject(fad.getName())); |
| 336 |
} |
| 337 |
|
| 338 |
} |
| 339 |
return feature;
|
| 340 |
} catch (java.sql.SQLException e) {
|
| 341 |
throw new ReadException("CreateFeature",e); |
| 342 |
} |
| 343 |
} |
| 344 |
|
| 345 |
static String objectToSqlString(Object obj){ |
| 346 |
if (obj instanceof String){ |
| 347 |
return "'"+ scapeString((String)obj) +"'"; |
| 348 |
} else if (obj == null){ |
| 349 |
return "null"; |
| 350 |
}else{
|
| 351 |
// OJO con otros tipos!!
|
| 352 |
return obj.toString();
|
| 353 |
} |
| 354 |
|
| 355 |
} |
| 356 |
|
| 357 |
static String scapeString(String str){ |
| 358 |
return str.replace("'", "''"); |
| 359 |
} |
| 360 |
} |