svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.jdbc / src / main / java / org / gvsig / fmap / dal / store / jdbc2 / spi / operations / PerformChangesOperation.java @ 44190
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package org.gvsig.fmap.dal.store.jdbc2.spi.operations; |
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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.Iterator; |
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import java.util.List; |
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import org.apache.commons.collections.CollectionUtils; |
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import org.apache.commons.lang3.StringUtils; |
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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.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureReference; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider; |
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import org.gvsig.fmap.dal.store.jdbc2.JDBCHelper; |
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import org.gvsig.fmap.dal.store.jdbc.exception.JDBCExecuteSQLException; |
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import org.gvsig.fmap.dal.store.jdbc.exception.JDBCSQLException; |
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import org.gvsig.fmap.dal.store.jdbc.exception.JDBCUpdateWithoutChangesException; |
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import org.gvsig.fmap.dal.store.jdbc2.spi.JDBCSQLBuilderBase; |
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import org.gvsig.fmap.dal.store.jdbc2.JDBCUtils; |
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import org.gvsig.fmap.dal.store.jdbc2.OperationsFactory.TableReference; |
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import org.gvsig.tools.dispose.Disposable; |
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import org.gvsig.tools.dispose.DisposeUtils; |
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public class PerformChangesOperation extends AbstractConnectionWritableOperation { |
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protected TableReference table;
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protected FeatureType featureType;
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protected Iterator<FeatureReferenceProviderServices> deleteds; |
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protected Iterator<FeatureStoreProvider.FeatureTypeChanged> featureTypesChanged; |
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protected Iterator<FeatureProvider> updateds; |
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protected Iterator<FeatureProvider> inserteds; |
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protected boolean typeChanged = false; |
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public PerformChangesOperation(JDBCHelper helper) {
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this(helper, null, null, null, null, null, null); |
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} |
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public PerformChangesOperation(JDBCHelper helper,
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TableReference table, |
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FeatureType featureType, |
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Iterator<FeatureReferenceProviderServices> deleteds,
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Iterator<FeatureProvider> inserteds,
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Iterator<FeatureProvider> updateds,
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Iterator<FeatureStoreProvider.FeatureTypeChanged> featureTypesChanged) {
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super(helper);
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this.deleteds = deleteds;
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this.inserteds = inserteds;
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this.updateds = updateds;
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this.table = table;
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this.featureType = featureType;
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this.featureTypesChanged = featureTypesChanged;
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} |
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public boolean isTypeChanged() { |
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return typeChanged;
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} |
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@Override
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public Object perform(Connection conn) throws DataException { |
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if (featureTypesChanged.hasNext()) {
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FeatureStoreProvider.FeatureTypeChanged item = featureTypesChanged.next(); |
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this.performUpdateTable(conn, table, item.getSource(), item.getTarget());
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typeChanged = true;
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} else {
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typeChanged = false;
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} |
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if (deleteds.hasNext()) {
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performDeletes(conn, table, featureType, deleteds); |
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} |
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if (updateds.hasNext()) {
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performUpdates(conn, table, featureType, updateds); |
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} |
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if (inserteds.hasNext()) {
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performInserts(conn, table, featureType, inserteds); |
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} |
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return true; |
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} |
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protected JDBCSQLBuilderBase buildDeleteSQL(
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TableReference table, |
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FeatureType type |
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) {
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JDBCSQLBuilderBase sqlbuilder = createSQLBuilder(); |
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sqlbuilder.delete().table() |
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.database(this.table.getDatabase())
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.schema(this.table.getSchema())
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.name(this.table.getTable());
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for (FeatureAttributeDescriptor attr : type) {
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if (attr.isPrimaryKey()) {
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sqlbuilder.delete().where().and( |
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sqlbuilder.eq( |
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sqlbuilder.column(attr.getName()), |
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sqlbuilder.parameter(attr.getName()).as_variable() |
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) |
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); |
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} |
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} |
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if (!sqlbuilder.delete().has_where() ) {
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throw new RuntimeException("Operation requires missing pk"); |
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} |
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return sqlbuilder;
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} |
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public void performDeletes(Connection conn, |
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TableReference table, |
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FeatureType type, |
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Iterator<FeatureReferenceProviderServices> deleteds) throws DataException { |
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JDBCSQLBuilderBase sqlbuilder = buildDeleteSQL(table, type); |
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PreparedStatement st = null; |
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Disposable paramsDisposer = null;
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String sql = sqlbuilder.delete().toString();
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try {
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st = conn.prepareStatement(sql); |
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while (deleteds.hasNext()) {
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FeatureReference reference = (FeatureReference) deleteds.next(); |
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paramsDisposer = sqlbuilder.setParameters(st, reference); |
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int nAffected = JDBCUtils.executeUpdate(st,sql);
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if (nAffected == 0) { |
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throw new JDBCUpdateWithoutChangesException( |
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sqlbuilder.delete().toString(), |
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null
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); |
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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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} |
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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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JDBCUtils.closeQuietly(st); |
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DisposeUtils.disposeQuietly(paramsDisposer); |
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} |
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} |
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protected JDBCSQLBuilderBase buildInsertSQL(
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TableReference table, |
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FeatureType type |
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) {
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JDBCSQLBuilderBase sqlbuilder = createSQLBuilder(); |
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sqlbuilder.insert().table() |
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.database(this.table.getDatabase())
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.schema(this.table.getSchema())
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.name(this.table.getTable());
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for (FeatureAttributeDescriptor attr : type) {
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if( attr.isAutomatic() ) {
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continue;
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} |
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if (attr.getType() == DataTypes.GEOMETRY) {
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sqlbuilder.insert().column().name(attr.getName()).with_value( |
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sqlbuilder.parameter(attr.getName()).as_geometry_variable().srs( |
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sqlbuilder.parameter().value(attr.getSRS()).as_constant() |
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) |
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); |
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} else {
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sqlbuilder.insert().column().name(attr.getName()).with_value( |
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sqlbuilder.parameter(attr.getName()) |
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); |
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} |
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} |
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return sqlbuilder;
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} |
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public void performInserts(Connection conn, |
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TableReference table, |
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FeatureType type, |
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Iterator<FeatureProvider> inserteds) throws DataException { |
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JDBCSQLBuilderBase sqlbuilder = buildInsertSQL(table, type); |
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PreparedStatement st;
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Disposable paramsDisposer; |
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String sql = sqlbuilder.insert().toString();
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try {
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st = conn.prepareStatement(sql); |
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while (inserteds.hasNext()) {
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FeatureProvider feature = inserteds.next(); |
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paramsDisposer = sqlbuilder.setParameters(st, feature); |
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try {
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if (JDBCUtils.executeUpdate(st,sql) == 0) { |
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throw new JDBCExecuteSQLException( |
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sqlbuilder.insert().toString(), |
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null
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); |
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} |
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} finally {
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DisposeUtils.disposeQuietly(paramsDisposer); |
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} |
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} |
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} catch (JDBCExecuteSQLException ex) {
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throw ex;
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} catch (Exception ex) { |
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throw new JDBCExecuteSQLException(sql,ex); |
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} |
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} |
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protected JDBCSQLBuilderBase buildUpdateSQL(
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TableReference table, |
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FeatureType type |
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) {
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JDBCSQLBuilderBase sqlbuilder = createSQLBuilder(); |
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sqlbuilder.update().table() |
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.database(this.table.getDatabase())
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.schema(this.table.getSchema())
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.name(this.table.getTable());
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for (FeatureAttributeDescriptor attr : type) {
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if (attr.isPrimaryKey()) {
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sqlbuilder.update().where().and( |
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sqlbuilder.eq( |
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sqlbuilder.column(attr.getName()), |
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sqlbuilder.parameter(attr.getName()).as_variable() |
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) |
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); |
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} if ( ! attr.isAutomatic() && !attr.isReadOnly() ) {
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if (attr.getType() == DataTypes.GEOMETRY) {
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sqlbuilder.update().column().name(attr.getName()).with_value( |
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sqlbuilder.parameter(attr.getName()).as_geometry_variable().srs( |
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sqlbuilder.parameter().value(attr.getSRS()).as_constant() |
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) |
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); |
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} else {
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sqlbuilder.update().column().name(attr.getName()).with_value( |
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sqlbuilder.parameter(attr.getName()).as_variable() |
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); |
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} |
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} |
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} |
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if (!sqlbuilder.update().has_where() ) {
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throw new RuntimeException("Operation requires missing pk"); |
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} |
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return sqlbuilder;
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} |
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public void performUpdates(Connection conn, |
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TableReference table, |
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FeatureType type, |
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Iterator<FeatureProvider> updateds) throws DataException { |
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JDBCSQLBuilderBase sqlbuilder = buildUpdateSQL(table, type); |
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PreparedStatement st = null; |
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Disposable paramsDisposer = null;
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String sql = sqlbuilder.update().toString();
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try {
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st = conn.prepareStatement(sql); |
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while (updateds.hasNext()) {
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FeatureProvider featureProvider = (FeatureProvider) updateds.next(); |
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paramsDisposer = sqlbuilder.setParameters(st, featureProvider); |
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if (JDBCUtils.executeUpdate(st,sql) == 0) { |
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throw new JDBCUpdateWithoutChangesException(sql,null); |
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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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JDBCUtils.closeQuietly(st); |
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DisposeUtils.disposeQuietly(paramsDisposer); |
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} |
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} |
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protected List<String> buildUpdateTableSQL( |
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TableReference table, |
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FeatureType original, |
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FeatureType target |
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) {
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JDBCSQLBuilderBase sqlbuilder = createSQLBuilder(); |
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sqlbuilder.alter_table().table() |
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.database(this.table.getDatabase())
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.schema(this.table.getSchema())
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.name(this.table.getTable());
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for (FeatureAttributeDescriptor attrOrgiginal : original) {
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FeatureAttributeDescriptor attrTarget = target.getAttributeDescriptor( |
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attrOrgiginal.getName() |
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); |
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if (attrTarget == null) { |
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if( attrOrgiginal.isComputed() ) {
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continue;
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} |
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sqlbuilder.alter_table().drop_column(attrOrgiginal.getName()); |
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} else if( !this.areEquals(attrOrgiginal, attrTarget) ) { |
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if( attrTarget.isComputed() ) {
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continue;
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} |
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if( attrTarget.getType()==DataTypes.GEOMETRY ) {
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sqlbuilder.alter_table().alter_geometry_column( |
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attrTarget.getName(), |
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attrTarget.getGeomType().getType(), |
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attrTarget.getGeomType().getSubType(), |
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attrTarget.getSRS(), |
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attrTarget.isIndexed(), |
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attrTarget.allowNull() |
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); |
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} else {
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sqlbuilder.alter_table().alter_column( |
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attrTarget.getName(), |
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attrTarget.getType(), |
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attrTarget.getPrecision(), |
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attrTarget.getSize(), |
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attrTarget.isPrimaryKey(), |
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attrTarget.isIndexed(), |
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attrTarget.allowNull(), |
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attrTarget.isAutomatic(), |
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attrTarget.getDefaultValue() |
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); |
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} |
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} |
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} |
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for (FeatureAttributeDescriptor attrTarget : target) {
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if( attrTarget.isComputed() ) {
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continue;
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} |
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if (original.getAttributeDescriptor(attrTarget.getName()) == null) { |
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if( attrTarget.getType()==DataTypes.GEOMETRY ) {
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sqlbuilder.alter_table().add_geometry_column( |
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attrTarget.getName(), |
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attrTarget.getGeomType().getType(), |
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attrTarget.getGeomType().getSubType(), |
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attrTarget.getSRS(), |
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attrTarget.isIndexed(), |
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attrTarget.allowNull() |
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); |
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} else {
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sqlbuilder.alter_table().add_column( |
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attrTarget.getName(), |
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attrTarget.getType(), |
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attrTarget.getPrecision(), |
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attrTarget.getSize(), |
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attrTarget.isPrimaryKey(), |
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attrTarget.isIndexed(), |
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attrTarget.allowNull(), |
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attrTarget.isAutomatic(), |
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attrTarget.getDefaultValue() |
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); |
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} |
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} |
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} |
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return sqlbuilder.alter_table().toStrings();
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} |
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protected boolean areEquals(FeatureAttributeDescriptor attr1, FeatureAttributeDescriptor attr2) { |
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// No interesa si son o no iguales en general, solo si son iguales en lo
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// que a los atributos usados para crear la columna de la tabla se refiere.
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if( !StringUtils.equals(attr1.getName(), attr2.getName()) ) {
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return false; |
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} |
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if( attr1.getType() != attr2.getType() ) {
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return false; |
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} |
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if( attr1.getPrecision() != attr2.getPrecision() ) {
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return false; |
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} |
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if( attr1.getSize() != attr2.getSize() ) {
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return false; |
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} |
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if( attr1.isPrimaryKey() != attr2.isPrimaryKey() ) {
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return false; |
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} |
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// if( attr1.isIndexed() != attr2.isIndexed() ) {
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// return false;
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// }
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if( attr1.allowNull() != attr2.allowNull() ) {
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return false; |
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} |
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if( attr1.isAutomatic() != attr2.isAutomatic() ) {
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return false; |
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} |
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if( attr1.getDefaultValue() != attr2.getDefaultValue() ) {
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if( attr1.getDefaultValue()==null || attr2.getDefaultValue()==null) { |
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return false; |
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} |
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if( !attr1.getDefaultValue().equals(attr2.getDefaultValue()) ) {
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return false; |
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} |
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} |
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return true; |
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} |
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|
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protected List<String> buildCreateIndexSQL( |
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TableReference table, |
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FeatureType original, |
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FeatureType target |
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) {
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ArrayList<String> sqls = new ArrayList<>(); |
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for (FeatureAttributeDescriptor attrTarget : target) {
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boolean createIndex = false; |
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if( attrTarget.isIndexed() ) {
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FeatureAttributeDescriptor attrOriginal = original.getAttributeDescriptor(attrTarget.getName()); |
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if ( attrOriginal == null) { |
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createIndex = true;
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} else {
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if( attrOriginal.isIndexed() ) {
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createIndex = false;
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} else {
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createIndex = true;
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} |
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} |
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} |
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if( createIndex ) {
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JDBCSQLBuilderBase sqlbuilder = createSQLBuilder(); |
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if( attrTarget.getType()==DataTypes.GEOMETRY ) {
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sqlbuilder.create_index().spatial(); |
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} |
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sqlbuilder.create_index().if_not_exist(); |
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sqlbuilder.create_index().name("idx_" + table + "_" + attrTarget.getName()); |
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sqlbuilder.create_index().column(attrTarget.getName()); |
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sqlbuilder.create_index().table() |
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.database(this.table.getDatabase())
|
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.schema(this.table.getSchema())
|
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.name(this.table.getTable());
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sqls.addAll(sqlbuilder.create_index().toStrings()); |
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} |
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} |
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return sqls;
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} |
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|
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public void performUpdateTable(Connection conn, |
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TableReference table, |
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FeatureType original, |
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FeatureType target) throws DataException {
|
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|
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ArrayList<String> sqls = new ArrayList<>(); |
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sqls.addAll(buildUpdateTableSQL(table, original, target)); |
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sqls.addAll(buildCreateIndexSQL(table, original, target)); |
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|
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if( !CollectionUtils.isEmpty(sqls) ) {
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Statement st = null; |
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try {
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st = conn.createStatement(); |
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for (String sql : sqls) { |
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if( !StringUtils.isBlank(sql) ) {
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JDBCUtils.execute(st, sql); |
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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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JDBCUtils.closeQuietly(st); |
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} |
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} |
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} |
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} |