gvsig-oracle / org.gvsig.oracle / trunk / org.gvsig.oracle / org.gvsig.oracle.provider / src / main / java / org / gvsig / oracle / dal / operations / OracleFetchFeatureTypeOperation.java @ 65
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package org.gvsig.oracle.dal.operations; |
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import java.sql.Connection; |
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import java.sql.PreparedStatement; |
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import java.sql.ResultSet; |
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import java.sql.ResultSetMetaData; |
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import java.sql.SQLException; |
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import java.sql.Statement; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Map; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.fmap.dal.DataTypes; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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import org.gvsig.fmap.dal.store.jdbc2.JDBCHelper; |
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import org.gvsig.fmap.dal.store.jdbc2.JDBCUtils; |
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import org.gvsig.fmap.dal.store.jdbc2.spi.JDBCSQLBuilderBase; |
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import org.gvsig.fmap.dal.store.jdbc2.spi.operations.FetchFeatureTypeOperation; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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public class OracleFetchFeatureTypeOperation extends FetchFeatureTypeOperation { |
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private static Map<String,GeometryType>databaseGeometryTypes = null; |
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private static Map<Integer,GeometryType>databaseGeometryTypeNumbers = null; |
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private static final int UNKNOWN_GEOMETRY = 0; |
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private static final int POINT = 1; |
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private static final int LINE_OR_CURVE = 2; |
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private static final int POLYGON = 3; |
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private static final int COLLECTION = 4; |
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private static final int MULTIPOINT = 5; |
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private static final int MULTILINE_OR_MULTICURVE = 6; |
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private static final int MULTIPOLYGON = 7; |
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public OracleFetchFeatureTypeOperation(
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JDBCHelper helper |
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) {
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super(helper);
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} |
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private GeometryType getGT(
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GeometryManager manager, |
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int type,
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int subtype
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) {
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try {
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return manager.getGeometryType(type, subtype);
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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public OracleFetchFeatureTypeOperation(
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JDBCHelper helper, |
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EditableFeatureType featureType, |
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String dbname,
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String schema,
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String table,
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List<String> primaryKeys, |
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String defaultGeometryColumn,
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IProjection crs |
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) {
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super(helper, featureType, dbname, schema, table, primaryKeys, defaultGeometryColumn, crs);
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} |
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@Override
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public void fetch(EditableFeatureType featureType, Connection conn, String dbname, String schema, String table, List<String> pks, String defaultGeometryColumn, IProjection crs) throws DataException { |
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super.fetch(featureType, conn, dbname, schema, table, pks, defaultGeometryColumn, crs);
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} |
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@Override
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protected int getDataTypeFromMetadata( |
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ResultSetMetaData rsMetadata,
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int colIndex
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) throws SQLException { |
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int type = rsMetadata.getColumnType(colIndex);
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if (type>=2000 && type<=4449) { |
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return DataTypes.GEOMETRY;
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} |
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switch (type) {
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case java.sql.Types.INTEGER:
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return DataTypes.INT;
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case java.sql.Types.BIGINT:
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return DataTypes.LONG;
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case java.sql.Types.REAL:
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return DataTypes.DOUBLE;
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case java.sql.Types.DOUBLE:
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return DataTypes.DOUBLE;
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case java.sql.Types.CHAR:
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return DataTypes.STRING;
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case java.sql.Types.VARCHAR:
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case java.sql.Types.LONGVARCHAR:
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return DataTypes.STRING;
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case java.sql.Types.FLOAT:
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return DataTypes.DOUBLE;
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case java.sql.Types.NUMERIC:
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if (rsMetadata.getScale(colIndex)==0) { |
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if (rsMetadata.getPrecision(colIndex)>9) { |
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return DataTypes.LONG;
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} |
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} |
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return DataTypes.DOUBLE;
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case java.sql.Types.DECIMAL:
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return DataTypes.FLOAT;
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case java.sql.Types.DATE:
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return DataTypes.DATE;
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case java.sql.Types.TIME:
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return DataTypes.TIME;
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case java.sql.Types.TIMESTAMP:
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return DataTypes.TIMESTAMP;
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case java.sql.Types.BOOLEAN:
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case java.sql.Types.BIT:
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return DataTypes.BOOLEAN;
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case java.sql.Types.BLOB:
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case java.sql.Types.BINARY:
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case java.sql.Types.LONGVARBINARY:
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return DataTypes.BYTEARRAY;
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default:
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String typeName = rsMetadata.getColumnTypeName(colIndex);
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if( "MDSYS.SDO_GEOMETRY".equalsIgnoreCase(typeName) ) { |
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return DataTypes.GEOMETRY;
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} |
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return DataTypes.OBJECT;
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} |
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} |
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@Override
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protected void fetchGeometryTypeAndSRS( |
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EditableFeatureAttributeDescriptor attr, |
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ResultSetMetaData rsMetadata,
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int colIndex
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) {
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if( attr.getType()!=DataTypes.GEOMETRY ) {
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return;
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} |
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doFetchFromMetadata(attr, rsMetadata, colIndex); |
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} |
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/**
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* Fetches the SRID and geom type from several Oracle metadata
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* tables:
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* ALL_SDO_GEOM_METADATA, ALL_SDO_INDEX_METADATA, ALL_SDO_INDEX_INFO
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*
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* @param attr
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* @param rsMetadata
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* @param colIndex
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*/
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protected void doFetchFromMetadata( |
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EditableFeatureAttributeDescriptor attr, |
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ResultSetMetaData rsMetadata,
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int colIndex
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) {
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int srid = -1; |
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int dimensions = 2; |
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try {
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String sql = "SELECT SRID, " |
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+ "( SELECT count(*) FROM TABLE(t1.diminfo) ) dimensions "
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+ "FROM ALL_SDO_GEOM_METADATA t1 "
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+ "WHERE OWNER = ? AND TABLE_NAME = ? AND COLUMN_NAME = ?" ;
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ResultSet rs = null; |
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PreparedStatement st = null; |
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try {
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st = this.getConnection().prepareStatement(sql);
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st.setString(1, this.getSchema()); |
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st.setString(2, this.getTablename()); |
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st.setString(3, attr.getName());
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rs = JDBCUtils.executeQuery(st, sql); |
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if (rs.next()) {
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srid = rs.getInt(1);
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dimensions = rs.getInt(2);
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} |
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if( srid!=-1 ) { |
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attr.setSRS(this.helper.getProjectionFromDatabaseCode(new Integer(srid).toString())); |
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} |
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} catch (Exception ex) { |
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logger.debug("Can't get srs for column '"+attr.getName()+"'.",ex); |
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} |
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finally {
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JDBCUtils.closeQuietly(rs); |
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JDBCUtils.closeQuietly(st); |
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} |
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} catch (Exception ex) { |
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logger.debug("Can't get geometry type and srs from column '"+attr.getName()+"'.",ex); |
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} |
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String oracleGeomType = doFetchFromSpatialIndex(attr.getName());
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GeometryType gt = getGeometryTypeFromOracleName(oracleGeomType, dimensions); |
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attr.setGeometryType(gt); |
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} |
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protected GeometryType getGeometryTypeFromOracleName(String geomType, int dimensions) { |
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String geomTypeWKT;
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geomType = geomType.toUpperCase(); |
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if ("POINT".equals((geomType))) { |
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geomTypeWKT = "POINT";
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} |
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else if ("LINE".equals(geomType) || "CURVE".equals(geomType)) { |
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geomTypeWKT = "LINESTRING";
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} |
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else if ("POLYGON".equals(geomType) || "SURFACE".equals(geomType)) { |
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geomTypeWKT = "POLYGON";
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} |
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else if ("MULTIPOINT".equals(geomType)) { |
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geomTypeWKT = "MULTIPOINT";
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} |
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else if ("MULTILINE".equals(geomType) || "MULTICURVE".equals(geomType)) { |
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geomTypeWKT = "MULTILINESTRING";
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} |
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else if ("MULTIPOLYGON".equals(geomType) || "MULTISURFACE".equals(geomType)) { |
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geomTypeWKT = "MULTIPOLYGON";
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} |
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else {
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geomTypeWKT = "GEOMETRY";
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} |
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if (dimensions==3) { |
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geomTypeWKT = geomTypeWKT + "Z";
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} |
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if (dimensions==4) { |
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geomTypeWKT = geomTypeWKT + "ZM";
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} |
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return getGeometryTypeFromDatabaseTypeName(geomTypeWKT);
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} |
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/**
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* Fetches the geometry type from the spatial index definition.
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* Note that this method does not allow to distinguish XYZ geoms
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* from XYM geoms, so XYM is reported as XYZ.
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*
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* @param geomColumnName the name of the column containing the geometry
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* @return An Oracle geometry type name, or "DEFAULT" if an spatial index
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* is not defined for the geom
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*/
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protected String doFetchFromSpatialIndex( |
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String geomColumnName
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) {
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try {
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String sql = "SELECT SDO_LAYER_GTYPE " |
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+ "FROM ALL_SDO_INDEX_METADATA tmd, ALL_SDO_INDEX_INFO tinfo "
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+ "WHERE tmd.SDO_INDEX_OWNER = tinfo.SDO_INDEX_OWNER "
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+ "AND tmd.SDO_INDEX_NAME = tinfo.INDEX_NAME "
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+ "AND TABLE_OWNER = ? AND TABLE_NAME = ? AND COLUMN_NAME = ?" ;
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ResultSet rs = null; |
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PreparedStatement st = null; |
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HashSet<Integer> sridList = new HashSet<Integer>(); |
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HashSet<Integer> geometryCodeList = new HashSet<Integer>(); |
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try {
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st = this.getConnection().prepareStatement(sql);
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st.setString(1, this.getSchema()); |
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st.setString(2, this.getTablename()); |
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st.setString(3, geomColumnName);
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rs = JDBCUtils.executeQuery(st, sql); |
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String geomType = null; |
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if (rs.next()) {
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geomType = rs.getString(1);
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return geomType;
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} |
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} finally {
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JDBCUtils.closeQuietly(rs); |
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JDBCUtils.closeQuietly(st); |
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} |
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} catch (Exception ex) { |
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logger.debug("Can't get geometry type from column '"+geomColumnName+"'.",ex); |
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} |
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return "DEFAULT"; |
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} |
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/**
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* Fetchs the geom and srid type by directly querying the table.
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* Warning: This will perform a full scan on the table, so it is an
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* expensive method.
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*
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* @param attr
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* @param rsMetadata
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* @param colIndex
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*/
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protected void doFetchFromTableFullScan( |
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EditableFeatureAttributeDescriptor attr, |
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ResultSetMetaData rsMetadata,
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int colIndex
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) {
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try {
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JDBCSQLBuilderBase sqlbuilder = this.createSQLBuilder();
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sqlbuilder.select().distinct(); |
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sqlbuilder.select().column().value(sqlbuilder.function("SDO_GTYPE", "({0}).SDO_GTYPE", sqlbuilder.variable(attr.getName()))); |
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sqlbuilder.select().column().value(sqlbuilder.ST_SRID(sqlbuilder.variable(attr.getName()))); |
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sqlbuilder.select().from().table().schema(this.getSchema());
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sqlbuilder.select().from().table().name(this.getTablename());
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Statement st = null; |
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ResultSet rs = null; |
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HashSet<Integer> sridList = new HashSet<Integer>(); |
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HashSet<Integer> geometryCodeList = new HashSet<Integer>(); |
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try {
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st = this.getConnection().createStatement();
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rs = JDBCUtils.executeQuery(st, sqlbuilder.toString()); |
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while (rs.next()) {
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geometryCodeList.add(rs.getInt(1));
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sridList.add(rs.getInt(2));
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} |
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} finally {
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JDBCUtils.closeQuietly(rs); |
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JDBCUtils.closeQuietly(st); |
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} |
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try {
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if( sridList.size()==1 ) { |
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Integer srsCode = sridList.iterator().next();
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attr.setSRS(this.helper.getProjectionFromDatabaseCode(srsCode.toString()));
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} |
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else if (sridList.size()>1) { |
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logger.error("More than one CRS detected on the layer: "+sridList.toArray().toString()+". Some geometries will be incorrectly handled."); |
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} |
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} catch (Exception ex) { |
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logger.debug("Can't get srs from column '"+attr.getName()+"'.",ex); |
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} |
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if( geometryCodeList.size() == 1 ) { |
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Integer geomCode = geometryCodeList.iterator().next();
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GeometryType gt = getGeometryTypeFromDatabaseTypeNumber(geomCode); |
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attr.setGeometryType(gt); |
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} |
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return;
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} catch (Exception ex) { |
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logger.debug("Can't get geometry type and srs from column '"+attr.getName()+"'.",ex); |
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} |
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attr.setGeometryType(getGeometryTypeFromDatabaseTypeName("GEOMETRY"));
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} |
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private GeometryType getGeometryTypeFromDatabaseTypeName(String typeName) { |
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if( databaseGeometryTypes==null ) { |
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GeometryManager manager = GeometryLocator.getGeometryManager(); |
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databaseGeometryTypes = new HashMap<>(); |
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databaseGeometryTypes.put("POINT", getGT(manager, Geometry.TYPES.POINT,Geometry.SUBTYPES.GEOM2D));
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databaseGeometryTypes.put("POINTZ", getGT(manager, Geometry.TYPES.POINT,Geometry.SUBTYPES.GEOM3D));
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databaseGeometryTypes.put("POINTM", getGT(manager, Geometry.TYPES.POINT,Geometry.SUBTYPES.GEOM2DM));
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databaseGeometryTypes.put("POINTZM", getGT(manager, Geometry.TYPES.POINT,Geometry.SUBTYPES.GEOM3DM));
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databaseGeometryTypes.put("LINESTRING", getGT(manager, Geometry.TYPES.LINE,Geometry.SUBTYPES.GEOM2D));
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databaseGeometryTypes.put("LINESTRINGZ", getGT(manager, Geometry.TYPES.LINE,Geometry.SUBTYPES.GEOM3D));
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databaseGeometryTypes.put("LINESTRINGM", getGT(manager, Geometry.TYPES.LINE,Geometry.SUBTYPES.GEOM2DM));
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databaseGeometryTypes.put("LINESTRINGZM", getGT(manager, Geometry.TYPES.LINE,Geometry.SUBTYPES.GEOM3DM));
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databaseGeometryTypes.put("POLYGON", getGT(manager, Geometry.TYPES.POLYGON,Geometry.SUBTYPES.GEOM2D));
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databaseGeometryTypes.put("POLYGONZ", getGT(manager, Geometry.TYPES.POLYGON,Geometry.SUBTYPES.GEOM3D));
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databaseGeometryTypes.put("POLYGONM", getGT(manager, Geometry.TYPES.POLYGON,Geometry.SUBTYPES.GEOM2DM));
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databaseGeometryTypes.put("POLYGONZM", getGT(manager, Geometry.TYPES.POLYGON,Geometry.SUBTYPES.GEOM3DM));
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databaseGeometryTypes.put("MULTIPOINT", getGT(manager, Geometry.TYPES.MULTIPOINT,Geometry.SUBTYPES.GEOM2D));
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databaseGeometryTypes.put("MULTIPOINTZ", getGT(manager, Geometry.TYPES.MULTIPOINT,Geometry.SUBTYPES.GEOM3D));
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databaseGeometryTypes.put("MULTIPOINTM", getGT(manager, Geometry.TYPES.MULTIPOINT,Geometry.SUBTYPES.GEOM2DM));
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databaseGeometryTypes.put("MULTIPOINTZM", getGT(manager, Geometry.TYPES.MULTIPOINT,Geometry.SUBTYPES.GEOM3DM));
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databaseGeometryTypes.put("MULTILINESTRING", getGT(manager, Geometry.TYPES.MULTILINE,Geometry.SUBTYPES.GEOM2D));
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databaseGeometryTypes.put("MULTILINESTRINGZ", getGT(manager, Geometry.TYPES.MULTILINE,Geometry.SUBTYPES.GEOM3D));
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databaseGeometryTypes.put("MULTILINESTRINGM", getGT(manager, Geometry.TYPES.MULTILINE,Geometry.SUBTYPES.GEOM2DM));
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databaseGeometryTypes.put("MULTILINESTRINGZM", getGT(manager, Geometry.TYPES.MULTILINE,Geometry.SUBTYPES.GEOM3DM));
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databaseGeometryTypes.put("MULTIPOLYGON", getGT(manager, Geometry.TYPES.MULTIPOLYGON,Geometry.SUBTYPES.GEOM2D));
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databaseGeometryTypes.put("MULTIPOLYGONZ", getGT(manager, Geometry.TYPES.MULTIPOLYGON,Geometry.SUBTYPES.GEOM3D));
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databaseGeometryTypes.put("MULTIPOLYGONM", getGT(manager, Geometry.TYPES.MULTIPOLYGON,Geometry.SUBTYPES.GEOM2DM));
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databaseGeometryTypes.put("MULTIPOLYGONZM", getGT(manager, Geometry.TYPES.MULTIPOLYGON,Geometry.SUBTYPES.GEOM3DM));
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databaseGeometryTypes.put("GEOMETRY", getGT(manager, Geometry.TYPES.GEOMETRY,Geometry.SUBTYPES.GEOM2D));
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databaseGeometryTypes.put("GEOMETRYZ", getGT(manager, Geometry.TYPES.GEOMETRY,Geometry.SUBTYPES.GEOM3D));
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databaseGeometryTypes.put("GEOMETRYM", getGT(manager, Geometry.TYPES.GEOMETRY,Geometry.SUBTYPES.GEOM2DM));
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databaseGeometryTypes.put("GEOMETRYZM", getGT(manager, Geometry.TYPES.GEOMETRY,Geometry.SUBTYPES.GEOM3DM));
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} |
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return databaseGeometryTypes.get(typeName);
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} |
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|
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private GeometryType getGeometryTypeFromDatabaseTypeNumber(int typeCode) { |
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int dimensions = typeCode/1000; |
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int typeCodeRemainder = typeCode - 1000*dimensions; |
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int mDimPos = typeCodeRemainder/100; |
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int geomType = typeCodeRemainder - 100*mDimPos; |
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|
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String baseType;
|
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switch(geomType) {
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case POINT:
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baseType = "POINT";
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break;
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case LINE_OR_CURVE:
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baseType = "LINESTRING";
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break;
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case POLYGON:
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baseType = "POLYGON";
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break;
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case MULTIPOINT:
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baseType = "MULTIPOINT";
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break;
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case MULTILINE_OR_MULTICURVE:
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baseType = "MULTILINESTRING";
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break;
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case MULTIPOLYGON:
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baseType = "MULTIPOLYGON";
|
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break;
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default:
|
| 427 |
baseType = "GEOMETRY";
|
| 428 |
break;
|
| 429 |
} |
| 430 |
if (dimensions==3) { |
| 431 |
if (mDimPos>0) { |
| 432 |
return getGeometryTypeFromDatabaseTypeName(baseType+"M"); |
| 433 |
} |
| 434 |
return getGeometryTypeFromDatabaseTypeName(baseType+"Z"); |
| 435 |
} |
| 436 |
if (dimensions==4) { |
| 437 |
return getGeometryTypeFromDatabaseTypeName(baseType+"ZM"); |
| 438 |
|
| 439 |
} |
| 440 |
return getGeometryTypeFromDatabaseTypeName(baseType);
|
| 441 |
|
| 442 |
} |
| 443 |
|
| 444 |
} |