svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_dataDB / src / org / gvsig / data / datastores / vectorial / db / jdbc / h2 / H2Utils.java @ 20973
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package org.gvsig.data.datastores.vectorial.db.jdbc.h2; |
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import java.sql.Connection; |
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import java.sql.ResultSet; |
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import java.sql.ResultSetMetaData; |
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import java.sql.Statement; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import org.gvsig.data.DataException; |
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import org.gvsig.data.InitializeException; |
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import org.gvsig.data.ReadException; |
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import org.gvsig.data.datastores.vectorial.db.DBAttributeDescriptor; |
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import org.gvsig.data.datastores.vectorial.db.DBFeatureType; |
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import org.gvsig.data.datastores.vectorial.db.jdbc.SQLException; |
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import org.gvsig.data.vectorial.AttributeDescriptor; |
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import org.gvsig.data.vectorial.FeatureType; |
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import org.gvsig.data.vectorial.IFeatureAttributeDescriptor; |
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import org.gvsig.data.vectorial.IsNotAttributeSettingException; |
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public class H2Utils { |
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static String getDefaultSchema(Connection conn, String catalog) throws InitializeException { |
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String sql= "SELECT * FROM INFORMATION_SCHEMA.SCHEMATA WHERE IS_DEFAULT = TRUE"; |
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if (catalog != null && catalog !=""){ |
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sql= sql+ " AND CATALOG_NAME = '"+catalog+"'"; |
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} |
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String schema = null; |
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Statement st = null; |
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ResultSet rs= null; |
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try{
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st = conn.createStatement(ResultSet.FETCH_FORWARD, ResultSet.CONCUR_READ_ONLY); |
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rs = st.executeQuery(sql); |
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if (!rs.next()){
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throw new InitializeException("Can't find default schema.","getDefaulSchema"); |
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} |
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schema = rs.getString("SCHEMA_NAME");
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if (rs.next()){
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throw new InitializeException("Checks catalog parm.","getDefaulSchema"); |
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} |
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} catch (java.sql.SQLException e) {
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// TODO Auto-generated catch block
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throw new SQLException(sql,"getDefaultSchema",e); |
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} finally{
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try{
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if (rs != null){ |
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rs.close(); |
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} else if (st != null){ |
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st.close(); |
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} |
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} catch (java.sql.SQLException e1){
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//Ignore ??
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} |
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} |
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return schema;
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} |
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private static void loadFieldsToFeatureType(Connection conn,H2StoreParameters params,DBFeatureType featureType) throws ReadException{ |
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String sql=""; |
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String columns=params.getFieldsString();
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if (params.getSqlSoure() != null){ |
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sql = params.getSqlSoure(); |
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} else {
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sql = "Select "+columns+" from " + params.tableID() + " limit 1;"; |
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} |
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try {
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Statement stAux = conn.createStatement();
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Statement stAux1 = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); |
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ResultSet rs = stAux.executeQuery(sql);
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ResultSetMetaData rsMetadata = rs.getMetaData();
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String schemaFilter=""; |
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if (params.getSchema() != null && params.getSchema() != ""){ |
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schemaFilter = " TABLE_SCHEMA='" + params.getSchema() +"' AND "; |
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} |
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String sqlAllMeta = "SELECT * FROM INFORMATION_SCHEMA.COLUMNS where " |
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+ schemaFilter |
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+ "TABLE_NAME='"+ params.getTableName() +"'"; |
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ResultSet rsAllMeta = stAux1.executeQuery(sqlAllMeta);
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// ResultSet rsAllMeta = conn.getMetaData().getAttributes(null, null, tableName, "*");
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String colName;
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int i;
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featureType.setTableID(params.tableID()); |
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AttributeDescriptor attr; |
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for (i=1;i<=rsMetadata.getColumnCount();i++){ |
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colName= rsMetadata.getColumnName(i); |
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rsAllMeta.first(); |
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while (true){ |
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if (rsAllMeta.isAfterLast()){
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attr = getAttributeFromJDBC(featureType,conn,rsMetadata,i); |
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featureType.add(attr); |
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// attr.setOrdinal(i-1);
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break;
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} else if(rsAllMeta.getString("COLUMN_NAME").equals(colName)){ |
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attr = getAttributeFromJDBC(featureType,conn,rsAllMeta); |
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featureType.add(attr); |
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// attr.setOrdinal(i-1);
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break;
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} |
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rsAllMeta.next(); |
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} |
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if (attr.getName().equals(params.getGeometryField())){
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if (attr.getDataType().equals(IFeatureAttributeDescriptor.TYPE_OBJECT)){
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attr.loading(); |
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attr.setType(IFeatureAttributeDescriptor.TYPE_GEOMETRY); |
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attr.stopLoading(); |
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}else{
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throw new InitializeException( |
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"H2Utils.getFeatureType",
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new Exception("Geometry Field '" |
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+ params.getGeometryField() |
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+ "' is a "
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+ attr.getDataType() |
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+ " but sould be "
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+ IFeatureAttributeDescriptor.TYPE_OBJECT)); |
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} |
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} |
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} |
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rs.close(); |
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rsAllMeta.close(); |
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} catch (java.sql.SQLException e) {
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// TODO Auto-generated catch block
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throw new SQLException(sql,"getFeatureType",e); |
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} catch (IsNotAttributeSettingException e) {
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e.printStackTrace(); |
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} |
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} |
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static DBFeatureType getFeatureType(Connection conn,H2StoreParameters params) throws ReadException{ |
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DBFeatureType featureType = new DBFeatureType();
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loadFieldsToFeatureType(conn, params, featureType); |
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try {
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if (params.getFieldsId() == null || params.getFieldsId().length == 0){ |
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String[] ids =loadFieldsId(conn,params); |
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if (ids == null){ |
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featureType.setReadOnly(true);
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ids = new String[featureType.size()]; |
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Iterator iter = featureType.iterator();
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for (int i=0;i<featureType.size();i++){ |
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ids[i]=((AttributeDescriptor)iter.next()).getName(); |
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} |
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} |
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featureType.setFieldsId(ids); |
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} else{
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featureType.setFieldsId(params.getFieldsId()); |
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} |
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} catch (DataException e) {
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throw new ReadException(H2Store.DATASTORE_NAME,e); |
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} |
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if (params.getGeometryField() != null && params.getGeometryField() != ""){ |
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if (featureType.getFieldIndex(params.getGeometryField())< 0){ |
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// FIXME: crear una nueva excepcion??
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throw new InitializeException( |
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H2Store.DATASTORE_NAME, |
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new Exception("Geometry Field '"+ params.getGeometryField() +"' not Found")); |
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} |
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featureType.setDefaultGeometry(params.getGeometryField()); |
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} |
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return featureType;
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} |
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private static String[] loadFieldsId(Connection conn, H2StoreParameters params) throws ReadException { |
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Statement st;
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StringBuffer sql = new StringBuffer(); |
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ResultSet rs;
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ArrayList list = new ArrayList(); |
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/*SELECT column_name FROM INFORMATION_SCHEMA.INDEXES
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* WHERE table_name='' AND
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* table_schema='' AND
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* table_catalog=''
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* AND index_type_name='PRIMARY KEY'
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*
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*/
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sql.append("SELECT column_name FROM INFORMATION_SCHEMA.INDEXES WHERE table_name like '");
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sql.append(params.getTableName()); |
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sql.append("' AND table_schema like '");
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if (params.getSchema() == null || params.getSchema() == ""){ |
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sql.append(getDefaultSchema(conn, params.getDb())); |
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} else{
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sql.append(params.getSchema()); |
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} |
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if (params.getCatalog() == null || params.getCatalog() == ""){ |
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if (params.getDb() != null && params.getDb() != ""){ |
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sql.append("' AND table_catalog like '");
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sql.append(params.getDb()); |
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} |
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} else {
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sql.append("' AND table_catalog like '");
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sql.append(params.getCatalog()); |
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} |
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sql.append("' AND index_type_name='PRIMARY KEY'");
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// System.out.println(sql.toString());
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try {
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st = conn.createStatement(); |
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rs = st.executeQuery(sql.toString()); |
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while (rs.next()){
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list.add(rs.getString(1));
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} |
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rs.close(); |
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st.close(); |
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} catch (java.sql.SQLException e) {
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throw new ReadException(params.getDataStoreName(),e); |
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} |
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if (list.size() == 0){ |
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return null; |
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} |
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String[] x = new String[] {""}; |
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return (String[])list.toArray(x); |
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} |
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private static AttributeDescriptor getAttributeFromJDBC(FeatureType fType,Connection conn,ResultSetMetaData rsMetadata,int colIndex) throws SQLException{ |
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DBAttributeDescriptor column= (DBAttributeDescriptor) fType.createAttributeDescriptor(); |
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try {
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column.loading(); |
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column.setName(rsMetadata.getColumnName(colIndex)); |
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column.setCaseSensitive(rsMetadata.isCaseSensitive(colIndex)); |
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column.setSqlType(rsMetadata.getColumnType(colIndex)); |
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column.setAllowNull(rsMetadata.isNullable(colIndex) == ResultSetMetaData.columnNullable);
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column.setAutoIncrement(rsMetadata.isAutoIncrement(colIndex)); |
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column.setReadOnly(rsMetadata.isReadOnly(colIndex)); |
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column.setWritable(rsMetadata.isWritable(colIndex)); |
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column.setClassName(rsMetadata.getColumnClassName(colIndex)); |
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column.setCatalogName(rsMetadata.getCatalogName(colIndex)); |
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column.setDefinitelyWritable(rsMetadata.isDefinitelyWritable(colIndex)); |
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column.setLabel(rsMetadata.getColumnLabel(colIndex)); |
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column.setSchemaName(rsMetadata.getSchemaName(colIndex)); |
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column.setTableName(rsMetadata.getTableName(colIndex)); |
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column.setCatalogName(rsMetadata.getCatalogName(colIndex)); |
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column.setSqlTypeName(rsMetadata.getColumnTypeName(colIndex)); |
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column.setSearchable(rsMetadata.isSearchable(colIndex)); |
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column.setSigned(rsMetadata.isSigned(colIndex)); |
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column.setCurrency(rsMetadata.isCurrency(colIndex)); |
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column.setPrecision(rsMetadata.getPrecision(colIndex)); |
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column.setSize(rsMetadata.getColumnDisplaySize(colIndex)); switch (rsMetadata.getColumnType(colIndex)) {
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case java.sql.Types.INTEGER:
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column.setType(IFeatureAttributeDescriptor.TYPE_INT); |
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break;
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case java.sql.Types.BIGINT:
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column.setType(IFeatureAttributeDescriptor.TYPE_LONG); |
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break;
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case java.sql.Types.REAL:
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column.setType(IFeatureAttributeDescriptor.TYPE_DOUBLE); |
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break;
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case java.sql.Types.DOUBLE:
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column.setType(IFeatureAttributeDescriptor.TYPE_DOUBLE); |
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break;
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case java.sql.Types.CHAR:
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column.setType(IFeatureAttributeDescriptor.TYPE_STRING); |
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break;
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case java.sql.Types.VARCHAR:
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column.setType(IFeatureAttributeDescriptor.TYPE_STRING); |
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break;
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case java.sql.Types.FLOAT:
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column.setType(IFeatureAttributeDescriptor.TYPE_FLOAT); |
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break;
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case java.sql.Types.DECIMAL:
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column.setType(IFeatureAttributeDescriptor.TYPE_FLOAT); |
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break;
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case java.sql.Types.DATE:
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column.setType(IFeatureAttributeDescriptor.TYPE_DATE); |
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break;
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case java.sql.Types.TIME:
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column.setType(IFeatureAttributeDescriptor.TYPE_TIME); |
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break;
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case java.sql.Types.TIMESTAMP:
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column.setType(IFeatureAttributeDescriptor.TYPE_TIMESTAMP); |
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break;
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case java.sql.Types.BOOLEAN:
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column.setType(IFeatureAttributeDescriptor.TYPE_BOOLEAN); |
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break;
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default:
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column.setType(IFeatureAttributeDescriptor.TYPE_OBJECT); |
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break;
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} |
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column.stopLoading(); |
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} catch (java.sql.SQLException e){
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throw new SQLException("","load attribute definition",e); |
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} catch (IsNotAttributeSettingException e) {
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e.printStackTrace(); |
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} |
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return column;
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} |
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private static AttributeDescriptor getAttributeFromJDBC(FeatureType fType, Connection conn, ResultSet rsMetadata) throws SQLException{ |
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DBAttributeDescriptor column= (DBAttributeDescriptor) fType.createAttributeDescriptor(); |
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try {
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column.loading(); |
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column.setName(rsMetadata.getString("COLUMN_NAME"));
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column.setSqlType(rsMetadata.getInt("DATA_TYPE"));
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switch (rsMetadata.getInt("DATA_TYPE")) { |
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case java.sql.Types.INTEGER:
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column.setType(IFeatureAttributeDescriptor.TYPE_INT); |
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break;
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case java.sql.Types.BIGINT:
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column.setType(IFeatureAttributeDescriptor.TYPE_LONG); |
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break;
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case java.sql.Types.REAL:
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column.setType(IFeatureAttributeDescriptor.TYPE_DOUBLE); |
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// column.setPrecision(rsMetadata.getInt("DECIMAL_DIGITS"));
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column.setPrecision(rsMetadata.getInt("NUMERIC_PRECISION"));
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break;
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case java.sql.Types.DOUBLE:
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column.setType(IFeatureAttributeDescriptor.TYPE_DOUBLE); |
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// column.setPrecision(rsMetadata.getInt("DECIMAL_DIGITS"));
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column.setPrecision(rsMetadata.getInt("NUMERIC_PRECISION"));
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break;
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case java.sql.Types.CHAR:
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column.setType(IFeatureAttributeDescriptor.TYPE_STRING); |
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// column.setSize(rsMetadata.getInt("COLUMN_SIZE"));
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column.setSize(rsMetadata.getInt("CHARACTER_MAXIMUM_LENGTH"));
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break;
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case java.sql.Types.VARCHAR:
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column.setType(IFeatureAttributeDescriptor.TYPE_STRING); |
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// column.setSize(rsMetadata.getInt("COLUMN_SIZE"));
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column.setSize(rsMetadata.getInt("CHARACTER_MAXIMUM_LENGTH"));
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break;
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case java.sql.Types.FLOAT:
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column.setType(IFeatureAttributeDescriptor.TYPE_FLOAT); |
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// column.setSize(rsMetadata.getInt("COLUMN_SIZE"));
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column.setSize(rsMetadata.getInt("CHARACTER_MAXIMUM_LENGTH"));
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break;
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case java.sql.Types.DECIMAL:
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column.setType(IFeatureAttributeDescriptor.TYPE_FLOAT); |
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// column.setSize(rsMetadata.getInt("COLUMN_SIZE"));
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column.setSize(rsMetadata.getInt("CHARACTER_MAXIMUM_LENGTH"));
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// column.setPrecision(rsMetadata.getInt("DECIMAL_DIGITS"));
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column.setPrecision(rsMetadata.getInt("NUMERIC_PRECISION"));
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break;
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case java.sql.Types.DATE:
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column.setType(IFeatureAttributeDescriptor.TYPE_DATE); |
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break;
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case java.sql.Types.BOOLEAN:
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column.setType(IFeatureAttributeDescriptor.TYPE_BOOLEAN); |
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break;
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default:
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//FIXME: Falta comprobar si es geometrica!!!
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column.setType(IFeatureAttributeDescriptor.TYPE_OBJECT); |
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break;
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} |
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column.setDefaultValue(rsMetadata.getObject("COLUMN_DEFAULT"));
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column.setAllowNull(rsMetadata.getBoolean("IS_NULLABLE"));
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column.stopLoading(); |
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} catch (java.sql.SQLException e){
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throw new SQLException("","load attribute definition",e); |
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} catch (IsNotAttributeSettingException e) {
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e.printStackTrace(); |
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} |
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return column;
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} |
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// static void initializeTableEPSG_and_shapeType(Connection conn,String tableID, DBFeatureType dbld) throws ReadException {
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// try {
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// Statement stAux = conn.createStatement();
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//
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//// String sql = "SELECT * FROM GEOMETRY_COLUMNS WHERE F_TABLE_NAME = '"
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//// + getTableName() + "' AND F_GEOMETRY_COLUMN = '" + getLyrDef().getFieldGeometry() + "'";
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// String sql= "SELECT SRID("+dbld.getDefaultGeometry()+"), GeometryType("+dbld.getDefaultGeometry()+") FROM "+tableID +" WHERE "+dbld.getDefaultGeometry()+" is not null LIMIT 1";
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//
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// ResultSet rs = stAux.executeQuery(sql);
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// if(!rs.next()){
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// dbld.setDefaultSRS("");
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// dbld.setGeometryTypes(new int[]{FShape.MULTI});
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// return;
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// }
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// dbld.setDefaultSRS("EPSG:"+rs.getInt(1));
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//
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// String geometryType = rs.getString(2);
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// int shapeType = FShape.MULTI;
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// if (geometryType.compareToIgnoreCase("Point") == 0)
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// shapeType = FShape.POINT;
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// else if (geometryType.compareToIgnoreCase("LineString") == 0)
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// shapeType = FShape.LINE;
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// else if (geometryType.compareToIgnoreCase("Polygon") == 0)
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// shapeType = FShape.POLYGON;
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// else if (geometryType.compareToIgnoreCase("MultiPoint") == 0)
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// shapeType = FShape.POINT;
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// else if (geometryType.compareToIgnoreCase("MultiLineString") == 0)
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// shapeType = FShape.LINE;
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// else if (geometryType.compareToIgnoreCase("MultiPolygon") == 0)
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// shapeType = FShape.POLYGON;
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//
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// dbld.setGeometryTypes(new int[]{shapeType});
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// rs.close();
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//
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// } catch (java.sql.SQLException e) {
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// dbld.setDefaultSRS("");
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// dbld.setGeometryTypes(new int[]{FShape.MULTI});
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// throw new ReadException("H2Utils.getTableEPSG_and_shapeType",e);
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// }
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//
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// }
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static String getConnectionResourceID(String dbUrl,String dbUser){ |
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return H2Store.CONNECTION_STRING+";"+dbUrl+";"+dbUser; |
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} |
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static String getJDBCUrl(String host,String db){ |
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String url;
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url = "jdbc:h2:tcp://"+host;
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if (db == null || db == ""){ |
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url=url+"/default";
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}else {
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url=url+"/"+db;
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} |
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return url;
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} |
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} |