root / branches / v2_0_0_prep / libraries / libFMap_daldb / src / org / gvsig / fmap / dal / store / postgresql / PostgreSQLStoreProviderWriter.java @ 28661
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2009 IVER T.I {{Task}}
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*/
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package org.gvsig.fmap.dal.store.postgresql; |
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import java.sql.Connection; |
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import java.sql.PreparedStatement; |
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import java.sql.SQLException; |
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import java.sql.Statement; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Collections; |
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import java.util.Iterator; |
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import java.util.List; |
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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.exception.InitializeException; |
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import org.gvsig.fmap.dal.exception.OpenException; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.exception.PerformEditingException; |
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import org.gvsig.fmap.dal.feature.spi.FeatureData; |
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import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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import org.gvsig.fmap.dal.resource.exception.ResourceBeginException; |
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import org.gvsig.fmap.dal.store.jdbc.JDBCExecutePreparedSQLException; |
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import org.gvsig.fmap.dal.store.jdbc.JDBCExecuteSQLException; |
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import org.gvsig.fmap.dal.store.jdbc.JDBCPreparingSQLException; |
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import org.gvsig.fmap.dal.store.jdbc.JDBCSQLException; |
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import org.gvsig.fmap.dal.store.jdbc.JDBCUpdateWithoutChangesException; |
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import org.gvsig.fmap.dal.store.postgresql.PostgreSQLHelper.TransactionalAction; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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public class PostgreSQLStoreProviderWriter extends PostgreSQLStoreProvider { |
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final static private Logger logger = LoggerFactory |
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.getLogger(PostgreSQLStoreProvider.class); |
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public PostgreSQLStoreProviderWriter() {
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super();
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} |
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public PostgreSQLStoreProviderWriter(PostgreSQLStoreParameters params)
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throws InitializeException {
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super(params);
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} |
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public boolean allowWrite() { |
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if (directSQLMode) {
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return false; |
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} |
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if (params.getPkFields() == null || params.getPkFields().length > 0) { |
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FeatureType ft = null;
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try {
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ft = this.store.getDefaultFeatureType();
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} catch (DataException e) {
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logger.error("Excepton get default Feature Type", e);
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} |
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if (ft == null) { |
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return false; |
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} |
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FeatureAttributeDescriptor attr; |
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Iterator iter = ft.iterator();
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while (iter.hasNext()){
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attr = (FeatureAttributeDescriptor) iter.next(); |
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if (attr.isPrimaryKey()){
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return true; |
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} |
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} |
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return false; |
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} else {
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return true; |
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} |
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} |
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public boolean canWriteGeometry(int geometryType) throws DataException { |
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FeatureAttributeDescriptor geomAttr = this.store
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.getDefaultFeatureType().getAttributeDescriptor( |
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this.store.getDefaultFeatureType()
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.getDefaultGeometryAttributeName()); |
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if (geomAttr == null) { |
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return false; |
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} |
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switch (geomAttr.getGeometryType()) {
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case Geometry.TYPES.GEOMETRY:
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return true; |
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case Geometry.TYPES.MULTISURFACE:
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return geometryType == Geometry.TYPES.MULTISURFACE
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|| geometryType == Geometry.TYPES.SURFACE; |
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case Geometry.TYPES.MULTIPOINT:
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return geometryType == Geometry.TYPES.MULTIPOINT
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|| geometryType == Geometry.TYPES.POINT; |
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case Geometry.TYPES.MULTICURVE:
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return geometryType == Geometry.TYPES.MULTICURVE
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|| geometryType == Geometry.TYPES.CURVE; |
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case Geometry.TYPES.MULTISOLID:
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return geometryType == Geometry.TYPES.MULTISOLID
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|| geometryType == Geometry.TYPES.SOLID; |
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default:
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return geometryType == geomAttr.getGeometryType();
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} |
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} |
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public boolean allowAutomaticValues() { |
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return true; |
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} |
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public void performEditing(final Iterator deleteds, |
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final Iterator inserteds, final Iterator updateds, |
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final Iterator originalFeatureTypesUpdated) |
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throws PerformEditingException {
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boolean countChanged = deleteds.hasNext() || inserteds.hasNext();
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try {
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this.open();
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} catch (OpenException e2) {
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throw new PerformEditingException(this.getName(), e2); |
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} |
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try {
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this.resourceBegin();
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} catch (ResourceBeginException e2) {
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throw new PerformEditingException(this.getName(), e2); |
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} |
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TransactionalAction action = new TransactionalAction() {
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public Object action(Connection conn) throws DataException { |
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if (originalFeatureTypesUpdated.hasNext()) {
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FeatureType original = (FeatureType) originalFeatureTypesUpdated |
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.next(); |
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FeatureType target = store.getFeatureType(original.getId()); |
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performUpdateTable(conn, original, target); |
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} |
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List pkAttributes = null; |
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if (deleteds.hasNext()) {
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pkAttributes = getPkAttributes(); |
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performDeletes(conn, deleteds, pkAttributes); |
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} |
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if (updateds.hasNext()) {
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if (pkAttributes == null) { |
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pkAttributes = getPkAttributes(); |
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} |
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performUpdates(conn, updateds, pkAttributes); |
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} |
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if (inserteds.hasNext()) {
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performInserts(conn, inserteds); |
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} |
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return null; |
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} |
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public boolean continueTransactionAllowed() { |
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return false; |
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} |
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}; |
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try {
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this.helper.doConnectionAction(action);
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if (countChanged) {
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resetCount(); |
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} |
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} catch (Exception e) { |
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throw new PerformEditingException(this.getName(), e); |
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} finally {
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this.resourceEnd();
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} |
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} |
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private List getPkAttributes() throws DataException { |
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ArrayList list = new ArrayList(); |
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Iterator iter = this.store.getDefaultFeatureType().iterator(); |
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FeatureAttributeDescriptor attr; |
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while (iter.hasNext()) {
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attr = (FeatureAttributeDescriptor) iter.next(); |
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if (attr.isPrimaryKey()) {
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list.add(attr); |
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} |
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} |
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return Collections.unmodifiableList(list); |
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} |
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private void appendToSQLPreparedPkWhereClause(StringBuilder sql, |
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List pkAttributes) {
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sql.append(" Where ");
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FeatureAttributeDescriptor attr; |
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for (int i = 0; i < pkAttributes.size() - 1; i++) { |
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attr = (FeatureAttributeDescriptor) pkAttributes.get(i); |
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sql.append(helper.escapeFieldName(attr.getName())); |
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sql.append(" = ? AND ");
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} |
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attr = (FeatureAttributeDescriptor) pkAttributes.get(pkAttributes |
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.size() - 1);
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sql.append(helper.escapeFieldName(attr.getName())); |
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sql.append(" = ? ");
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} |
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private void addToListFeatureValues(Feature feature, List attributes, |
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List values) throws DataException { |
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FeatureAttributeDescriptor attr, attrOfList; |
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FeatureType fType = feature.getType(); |
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for (int i = 0; i < attributes.size(); i++) { |
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attrOfList = (FeatureAttributeDescriptor) attributes.get(i); |
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attr = fType.getAttributeDescriptor(attrOfList.getName()); |
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if (attr == null) { |
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if (attrOfList.isPrimaryKey()) {
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// FIXME excepton
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throw new RuntimeException("pk attribute '" |
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+ attrOfList.getName() + "' not found in feature");
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} |
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values.add(helper.dalValueToJDBC(attr, attrOfList |
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.getDefaultValue())); |
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} else {
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values.add(helper.dalValueToJDBC(attr, feature.get(attr |
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.getIndex()))); |
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} |
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} |
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} |
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private void addToListFeatureValues(FeatureData featureData, |
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List attributes, List values) throws DataException { |
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FeatureAttributeDescriptor attr, attrOfList; |
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FeatureType fType = featureData.getType(); |
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for (int i = 0; i < attributes.size(); i++) { |
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attrOfList = (FeatureAttributeDescriptor) attributes.get(i); |
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attr = fType.getAttributeDescriptor(attrOfList.getName()); |
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if (attr == null) { |
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if (attrOfList.isPrimaryKey()) {
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// FIXME excepton
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throw new RuntimeException("pk attribute '" |
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+ attrOfList.getName() + "' not found in feature");
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} |
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values.add(helper.dalValueToJDBC(attr, attrOfList |
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.getDefaultValue())); |
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} else {
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values.add(helper.dalValueToJDBC(attr, featureData.get(attr |
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.getIndex()))); |
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if (attr.getDataType() == DataTypes.GEOMETRY) {
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values.add(helper.getPostgisSRID(attr.getSRS())); |
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} |
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} |
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} |
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} |
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private void performDeletes(Connection conn, Iterator deleteds, |
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List pkAttributes) throws DataException { |
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if (pkAttributes.size() < 0) { |
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// FIXME Exception
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throw new RuntimeException("Operation requires missing pk"); |
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} |
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// ************ Prepare SQL ****************
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StringBuilder sqlb = new StringBuilder(); |
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sqlb.append("Delete from ");
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sqlb.append(params.tableID()); |
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appendToSQLPreparedPkWhereClause(sqlb, pkAttributes); |
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String sql = sqlb.toString();
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// ************ Prepare SQL (end) ****************
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executeRemovePreparedStatement(conn, sql, pkAttributes, deleteds); |
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} |
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private void performUpdates(Connection conn, Iterator updateds, |
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List pkAttributes) throws DataException { |
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/*
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* UPDATE [ ONLY ] table [ [ AS ] alias ] SET { column = { expression |
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* DEFAULT } | ( column [, ...] ) = ( { expression | DEFAULT } [, ...] )
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* } [, ...] [ FROM fromlist ] [ WHERE condition ] [ RETURNING * |
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* output_expression [ AS output_name ] [, ...] ]
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*/
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if (pkAttributes.size() < 0) { |
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// FIXME Exception
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throw new RuntimeException("Operation requires missing pk"); |
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} |
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// ************ Prepare SQL ****************
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StringBuilder sqlb = new StringBuilder(); |
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sqlb.append("UPDATE ");
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sqlb.append(params.tableID()); |
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sqlb.append(" SET (");
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FeatureType type = this.store.getDefaultFeatureType();
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Iterator iter = type.iterator();
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FeatureAttributeDescriptor attr; |
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List updateAttrs = new ArrayList(); |
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while (iter.hasNext()) {
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attr = (FeatureAttributeDescriptor) iter.next(); |
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if (attr.isPrimaryKey() || attr.isAutomatic() || attr.isReadOnly()) {
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continue;
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} |
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updateAttrs.add(attr); |
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} |
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if (updateAttrs.size() < 1) { |
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// FIXME exception
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throw new RuntimeException("no fields to set"); |
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} |
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for (int i = 0; i < updateAttrs.size() - 1; i++) { |
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attr = (FeatureAttributeDescriptor) updateAttrs.get(i); |
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sqlb.append(helper.escapeFieldName(attr.getName())); |
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sqlb.append(", ");
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} |
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attr = (FeatureAttributeDescriptor) updateAttrs |
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.get(updateAttrs.size() - 1);
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sqlb.append(helper.escapeFieldName(attr.getName())); |
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sqlb.append(") = (");
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for (int i = 0; i < updateAttrs.size() - 1; i++) { |
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attr = (FeatureAttributeDescriptor) updateAttrs.get(i); |
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if (attr.getDataType() == DataTypes.GEOMETRY) {
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sqlb.append("GeomFromWKB(?, ?), ");
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} else {
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sqlb.append("?, ");
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} |
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} |
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attr = (FeatureAttributeDescriptor) updateAttrs |
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.get(updateAttrs.size() - 1);
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if (attr.getDataType() == DataTypes.GEOMETRY) {
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sqlb.append("GeomFromWKB(?, ?) ");
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} else {
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sqlb.append("? ");
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} |
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sqlb.append(") ");
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appendToSQLPreparedPkWhereClause(sqlb, pkAttributes); |
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String sql = sqlb.toString();
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// ************ Prepare SQL (end) ****************
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updateAttrs.addAll(pkAttributes); |
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try {
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executeUpdatePreparedStatement(conn, sql, updateAttrs, updateds); |
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} catch (Exception e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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private void executeRemovePreparedStatement(Connection conn, String sql, |
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List attributes, Iterator featureReferences) throws DataException { |
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PreparedStatement st;
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try {
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st = conn.prepareStatement(sql); |
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} catch (SQLException e) { |
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throw new JDBCPreparingSQLException(sql, e); |
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} |
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try {
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List values = new ArrayList(); |
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FeatureReferenceProviderServices featureRef; |
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FeatureType featureType; |
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while (featureReferences.hasNext()) {
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st.clearParameters(); |
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featureRef = (FeatureReferenceProviderServices) featureReferences |
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.next(); |
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values.clear(); |
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featureType = this.store.getFeatureType(featureRef
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.getFeatureTypeId()); |
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Iterator iter = attributes.iterator();
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FeatureAttributeDescriptor attr; |
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while (iter.hasNext()) {
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attr = (FeatureAttributeDescriptor) iter.next(); |
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values.add(helper.dalValueToJDBC(attr, featureRef |
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.getKeyValue(attr.getName()))); |
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} |
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for (int i = 0; i < values.size(); i++) { |
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st.setObject(i + 1, values.get(i));
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} |
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try {
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int nAffected =st.executeUpdate();
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if (nAffected == 0) { |
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throw new JDBCUpdateWithoutChangesException(sql, values); |
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} |
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if (nAffected > 1){ |
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logger.warn("Remove statement affectst to {} rows: {}",
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nAffected, sql); |
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} |
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} catch (SQLException e) { |
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throw new JDBCExecutePreparedSQLException(sql, values, e); |
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} |
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} |
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} catch (SQLException e) { |
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throw new JDBCSQLException(e); |
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} finally {
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try {st.close();} catch (SQLException e) { }; |
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} |
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} |
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private void executeUpdatePreparedStatement(Connection conn, String sql, |
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List attributes, Iterator featureDatas) throws DataException { |
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PreparedStatement st;
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try {
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st = conn.prepareStatement(sql); |
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} catch (SQLException e) { |
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throw new JDBCPreparingSQLException(sql, e); |
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} |
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try {
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List values = new ArrayList(); |
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FeatureData featureData; |
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while (featureDatas.hasNext()) {
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st.clearParameters(); |
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featureData = (FeatureData) featureDatas.next(); |
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values.clear(); |
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addToListFeatureValues(featureData, attributes, values); |
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for (int i = 0; i < values.size(); i++) { |
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st.setObject(i + 1, values.get(i));
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} |
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try {
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if (st.executeUpdate() == 0) { |
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throw new JDBCUpdateWithoutChangesException(sql, values); |
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} |
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} catch (SQLException e) { |
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throw new JDBCExecutePreparedSQLException(sql, values, e); |
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} |
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} |
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} catch (SQLException e) { |
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throw new JDBCSQLException(e); |
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} finally {
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try {st.close();} catch (SQLException e) { }; |
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} |
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} |
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private void performInserts(Connection conn, Iterator inserteds) |
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throws DataException {
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StringBuilder sqlb = new StringBuilder(); |
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List attrs = new ArrayList(); |
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prepareSQLAndAttributeListForInser(sqlb, attrs); |
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String sql = sqlb.toString();
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PreparedStatement st;
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try {
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st = conn.prepareStatement(sql); |
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} catch (SQLException e) { |
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throw new JDBCPreparingSQLException(sql, e); |
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} |
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try {
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while (inserteds.hasNext()) {
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perfomInsert(conn, st, sql, (FeatureData) inserteds.next(), |
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attrs); |
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} |
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} finally {
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try {
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st.close(); |
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} catch (SQLException e) { |
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} |
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; |
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} |
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} |
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private void prepareSQLAndAttributeListForInser(StringBuilder sqlb, |
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List attributes) throws DataException { |
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/*
|
| 512 |
* INSERT INTO table [ ( column [, ...] ) ] { DEFAULT VALUES | VALUES (
|
| 513 |
* { expression | DEFAULT } [, ...] ) [, ...] | query } [ RETURNING * |
|
| 514 |
* output_expression [ AS output_name ] [, ...] ]
|
| 515 |
*/
|
| 516 |
|
| 517 |
sqlb.append("INSERT INTO ");
|
| 518 |
sqlb.append(params.tableID()); |
| 519 |
|
| 520 |
sqlb.append(" (");
|
| 521 |
|
| 522 |
FeatureType type = this.store.getDefaultFeatureType();
|
| 523 |
|
| 524 |
Iterator iter = type.iterator();
|
| 525 |
FeatureAttributeDescriptor attr; |
| 526 |
while (iter.hasNext()) {
|
| 527 |
attr = (FeatureAttributeDescriptor) iter.next(); |
| 528 |
if (attr.isAutomatic() || attr.isReadOnly()) {
|
| 529 |
continue;
|
| 530 |
} |
| 531 |
attributes.add(attr); |
| 532 |
|
| 533 |
} |
| 534 |
if (attributes.size() < 1) { |
| 535 |
// FIXME exception
|
| 536 |
throw new RuntimeException("no fields to set"); |
| 537 |
} |
| 538 |
|
| 539 |
for (int i = 0; i < attributes.size() - 1; i++) { |
| 540 |
attr = (FeatureAttributeDescriptor) attributes.get(i); |
| 541 |
sqlb.append(helper.escapeFieldName(attr.getName())); |
| 542 |
sqlb.append(", ");
|
| 543 |
} |
| 544 |
attr = (FeatureAttributeDescriptor) attributes |
| 545 |
.get(attributes.size() - 1);
|
| 546 |
sqlb.append(helper.escapeFieldName(attr.getName())); |
| 547 |
|
| 548 |
sqlb.append(") VALUES (");
|
| 549 |
for (int i = 0; i < attributes.size() - 1; i++) { |
| 550 |
attr = (FeatureAttributeDescriptor) attributes.get(i); |
| 551 |
if (attr.getDataType() == DataTypes.GEOMETRY) {
|
| 552 |
sqlb.append("GeomFromWKB(?,?), ");
|
| 553 |
} else {
|
| 554 |
sqlb.append("?, ");
|
| 555 |
} |
| 556 |
} |
| 557 |
attr = (FeatureAttributeDescriptor) attributes |
| 558 |
.get(attributes.size() - 1);
|
| 559 |
if (attr.getDataType() == DataTypes.GEOMETRY) {
|
| 560 |
sqlb.append("GeomFromWKB(?,?) ");
|
| 561 |
} else {
|
| 562 |
sqlb.append("? ");
|
| 563 |
} |
| 564 |
|
| 565 |
sqlb.append(") ");
|
| 566 |
|
| 567 |
} |
| 568 |
|
| 569 |
private void perfomInsert(Connection conn, PreparedStatement insertSt, |
| 570 |
String sql, FeatureData feature, List attributes) |
| 571 |
throws DataException {
|
| 572 |
|
| 573 |
try {
|
| 574 |
insertSt.clearParameters(); |
| 575 |
List values = new ArrayList(); |
| 576 |
addToListFeatureValues(feature, attributes, values); |
| 577 |
FeatureAttributeDescriptor attr; |
| 578 |
int j = 1; |
| 579 |
for (int i = 0; i < values.size(); i++) { |
| 580 |
insertSt.setObject(j, values.get(i)); |
| 581 |
j++; |
| 582 |
} |
| 583 |
if (logger.isDebugEnabled()) {
|
| 584 |
logger.debug("Executing insert. sql={} value={}", new Object[] { |
| 585 |
sql, |
| 586 |
values }); |
| 587 |
} |
| 588 |
try {
|
| 589 |
insertSt.execute(); |
| 590 |
} catch (SQLException e) { |
| 591 |
throw new JDBCExecutePreparedSQLException(sql, values, e); |
| 592 |
} |
| 593 |
|
| 594 |
} catch (SQLException e1) { |
| 595 |
throw new JDBCSQLException(e1); |
| 596 |
} |
| 597 |
} |
| 598 |
|
| 599 |
private void performUpdateTable(Connection conn, FeatureType original, |
| 600 |
FeatureType target) throws DataException {
|
| 601 |
|
| 602 |
/*
|
| 603 |
*
|
| 604 |
* ALTER TABLE [ ONLY ] name [ * ] action [, ... ]
|
| 605 |
*/
|
| 606 |
|
| 607 |
|
| 608 |
List toDrop = new ArrayList(); |
| 609 |
List toAdd = new ArrayList(); |
| 610 |
List toAlter = new ArrayList(); |
| 611 |
|
| 612 |
List sqlgeomColumnsChanges = new ArrayList(); |
| 613 |
|
| 614 |
FeatureAttributeDescriptor attrOrg; |
| 615 |
FeatureAttributeDescriptor attrTrg; |
| 616 |
String actionAlter;
|
| 617 |
Iterator attrs = original.iterator();
|
| 618 |
while (attrs.hasNext()) {
|
| 619 |
attrOrg = (FeatureAttributeDescriptor) attrs.next(); |
| 620 |
attrTrg = target.getAttributeDescriptor(attrOrg.getName()); |
| 621 |
if (attrTrg == null) { |
| 622 |
toDrop.add(getSqlActionDropField(attrOrg)); |
| 623 |
if (attrOrg.getDataType() == DataTypes.GEOMETRY) {
|
| 624 |
sqlgeomColumnsChanges.add(getSqlGeometyFieldDrop(attrOrg)); |
| 625 |
} |
| 626 |
} else {
|
| 627 |
actionAlter = getSqlActionAlterField(attrOrg, attrTrg, |
| 628 |
sqlgeomColumnsChanges); |
| 629 |
} |
| 630 |
|
| 631 |
} |
| 632 |
attrs = target.iterator(); |
| 633 |
while (attrs.hasNext()) {
|
| 634 |
attrTrg = (FeatureAttributeDescriptor) attrs.next(); |
| 635 |
if (target.getAttributeDescriptor(attrTrg.getName()) == null) { |
| 636 |
toAdd.add(getSqlActionAddField(attrTrg)); |
| 637 |
} |
| 638 |
} |
| 639 |
|
| 640 |
StringBuilder sqlb = new StringBuilder(); |
| 641 |
|
| 642 |
sqlb.append("ALTER TABLE ");
|
| 643 |
sqlb.append(params.tableID()); |
| 644 |
sqlb.append(' ');
|
| 645 |
|
| 646 |
List actions = new ArrayList(); |
| 647 |
actions.addAll(toDrop); |
| 648 |
actions.addAll(toAlter); |
| 649 |
actions.addAll(toAdd); |
| 650 |
|
| 651 |
if (actions.size() < 1) { |
| 652 |
return;
|
| 653 |
} |
| 654 |
|
| 655 |
for (int i = 0; i < actions.size() - 1; i++) { |
| 656 |
sqlb.append(actions.get(i)); |
| 657 |
sqlb.append(", ");
|
| 658 |
} |
| 659 |
sqlb.append(actions.size() - 1);
|
| 660 |
|
| 661 |
|
| 662 |
String sql = sqlb.toString();
|
| 663 |
|
| 664 |
Statement st = null; |
| 665 |
|
| 666 |
try {
|
| 667 |
st = conn.createStatement(); |
| 668 |
} catch (SQLException e1) { |
| 669 |
throw new JDBCSQLException(e1); |
| 670 |
} |
| 671 |
try{
|
| 672 |
st.execute(sql); |
| 673 |
Iterator iter = sqlgeomColumnsChanges.iterator();
|
| 674 |
while (iter.hasNext()) {
|
| 675 |
sql = (String) iter.next();
|
| 676 |
st.execute(sql); |
| 677 |
} |
| 678 |
} catch (SQLException e1) { |
| 679 |
throw new JDBCExecuteSQLException(sql, e1); |
| 680 |
} finally{
|
| 681 |
try { st.close(); } catch (Exception e) { logger.error("Exception closing statement", e); }; |
| 682 |
} |
| 683 |
|
| 684 |
} |
| 685 |
|
| 686 |
private Object getSqlGeometyFieldDrop(FeatureAttributeDescriptor attr) { |
| 687 |
StringBuilder strb = new StringBuilder(); |
| 688 |
|
| 689 |
strb.append("Delete from geometry_columns where f_geometry_column = '");
|
| 690 |
strb.append(attr.getName()); |
| 691 |
strb.append("' and f_table_nam = '");
|
| 692 |
strb.append(params.getTable()); |
| 693 |
strb.append("' and f_table_schema = ");
|
| 694 |
if (params.getSchema() == null || params.getSchema().length() == 0) { |
| 695 |
strb.append("current_schema()");
|
| 696 |
} else {
|
| 697 |
strb.append("'");
|
| 698 |
strb.append(params.getSchema()); |
| 699 |
strb.append("'");
|
| 700 |
} |
| 701 |
if (params.getCatalog() != null && params.getCatalog().length() > 0) { |
| 702 |
strb.append(" and f_table_catalog = '");
|
| 703 |
strb.append(params.getCatalog()); |
| 704 |
strb.append("'");
|
| 705 |
} |
| 706 |
return strb.toString();
|
| 707 |
} |
| 708 |
|
| 709 |
|
| 710 |
private String getSqlActionDropField(FeatureAttributeDescriptor attr) { |
| 711 |
// DROP [ COLUMN ] column
|
| 712 |
return " DROP COLUMN " + this.helper.escapeFieldName(attr.getName()); |
| 713 |
} |
| 714 |
|
| 715 |
private String getSqlActionAlterField(FeatureAttributeDescriptor attrOrg, |
| 716 |
FeatureAttributeDescriptor attrTrg, List sqlgeomColumnsChanges)
|
| 717 |
throws DataException {
|
| 718 |
//
|
| 719 |
List actions = new ArrayList(); |
| 720 |
StringBuilder strb;
|
| 721 |
if (attrOrg.getDataType() != attrTrg.getDataType()) {
|
| 722 |
// ALTER COLUMN {col} TYPE {type} character varying(35)
|
| 723 |
strb = new StringBuilder(); |
| 724 |
strb.append("ALTER COLUMN ");
|
| 725 |
strb.append(helper.escapeFieldName(attrTrg.getName())); |
| 726 |
strb.append(" ");
|
| 727 |
strb.append(helper.getSqlColumnTypeDescription(attrTrg)); |
| 728 |
|
| 729 |
actions.add(strb.toString()); |
| 730 |
if (attrOrg.getDataType() == DataTypes.GEOMETRY) {
|
| 731 |
sqlgeomColumnsChanges.add(getSqlGeometyFieldDrop(attrOrg)); |
| 732 |
} |
| 733 |
if (attrTrg.getDataType() == DataTypes.GEOMETRY) {
|
| 734 |
sqlgeomColumnsChanges.addAll(Arrays.asList(helper
|
| 735 |
.getSqlGeometyFieldAdd(attrTrg, params.getTable(), |
| 736 |
params.getSchema()))); |
| 737 |
} |
| 738 |
} |
| 739 |
if (attrOrg.getDataType() == attrTrg.getDataType()
|
| 740 |
&& attrTrg.getDataType() == DataTypes.GEOMETRY) {
|
| 741 |
// TODO Checks SRS and GeomType/Subtype
|
| 742 |
} |
| 743 |
|
| 744 |
if (attrOrg.allowNull() != attrTrg.allowNull()) {
|
| 745 |
// ALTER [ COLUMN ] column { SET | DROP } NOT NULL
|
| 746 |
|
| 747 |
strb = new StringBuilder(); |
| 748 |
strb.append("ALTER COLUMN ");
|
| 749 |
strb.append(helper.escapeFieldName(attrTrg.getName())); |
| 750 |
strb.append(' ');
|
| 751 |
if (attrTrg.allowNull()) {
|
| 752 |
strb.append("SET ");
|
| 753 |
} else {
|
| 754 |
strb.append("DROP ");
|
| 755 |
} |
| 756 |
strb.append("NOT NULL");
|
| 757 |
actions.add(strb.toString()); |
| 758 |
} |
| 759 |
|
| 760 |
if (attrOrg.getDefaultValue() != attrTrg.getDefaultValue()) {
|
| 761 |
if (attrTrg.getDefaultValue() == null) { |
| 762 |
// ALTER [ COLUMN ] column DROP DEFAULT
|
| 763 |
|
| 764 |
strb = new StringBuilder(); |
| 765 |
strb.append("ALTER COLUMN ");
|
| 766 |
strb.append(helper.escapeFieldName(attrTrg.getName())); |
| 767 |
strb.append(" DROP DEFAULT");
|
| 768 |
actions.add(strb.toString()); |
| 769 |
} else if (!attrTrg.getDefaultValue().equals( |
| 770 |
attrOrg.getDefaultValue())) {
|
| 771 |
// ALTER [ COLUMN ] column DROP DEFAULT
|
| 772 |
|
| 773 |
strb = new StringBuilder(); |
| 774 |
strb.append("ALTER COLUMN ");
|
| 775 |
strb.append(helper.escapeFieldName(attrTrg.getName())); |
| 776 |
strb.append(" SET DEFAULT");
|
| 777 |
strb.append(helper.dalValueToJDBC(attrTrg, attrTrg |
| 778 |
.getDefaultValue())); |
| 779 |
actions.add(strb.toString()); |
| 780 |
} |
| 781 |
} |
| 782 |
|
| 783 |
return ""; |
| 784 |
} |
| 785 |
|
| 786 |
private String getSqlActionAddField(FeatureAttributeDescriptor attr) { |
| 787 |
StringBuilder strb = new StringBuilder(); |
| 788 |
strb.append("ADD ");
|
| 789 |
this.helper.addSqlFiledDescription(attr, strb);
|
| 790 |
return strb.toString();
|
| 791 |
} |
| 792 |
|
| 793 |
} |