001/*
002 * Copyright 2002-2018 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.jdbc.core.metadata;
018
019import java.sql.DatabaseMetaData;
020import java.sql.SQLException;
021
022import org.springframework.lang.Nullable;
023
024/**
025 * DB2 specific implementation for the {@link CallMetaDataProvider} interface.
026 * This class is intended for internal use by the Simple JDBC classes.
027 *
028 * @author Thomas Risberg
029 * @author Juergen Hoeller
030 * @since 2.5
031 */
032public class Db2CallMetaDataProvider extends GenericCallMetaDataProvider {
033
034        public Db2CallMetaDataProvider(DatabaseMetaData databaseMetaData) throws SQLException {
035                super(databaseMetaData);
036        }
037
038
039        @Override
040        public void initializeWithMetaData(DatabaseMetaData databaseMetaData) throws SQLException {
041                try {
042                        setSupportsCatalogsInProcedureCalls(databaseMetaData.supportsCatalogsInProcedureCalls());
043                }
044                catch (SQLException ex) {
045                        logger.debug("Error retrieving 'DatabaseMetaData.supportsCatalogsInProcedureCalls' - " + ex.getMessage());
046                }
047                try {
048                        setSupportsSchemasInProcedureCalls(databaseMetaData.supportsSchemasInProcedureCalls());
049                }
050                catch (SQLException ex) {
051                        logger.debug("Error retrieving 'DatabaseMetaData.supportsSchemasInProcedureCalls' - " + ex.getMessage());
052                }
053                try {
054                        setStoresUpperCaseIdentifiers(databaseMetaData.storesUpperCaseIdentifiers());
055                }
056                catch (SQLException ex) {
057                        logger.debug("Error retrieving 'DatabaseMetaData.storesUpperCaseIdentifiers' - " + ex.getMessage());
058                }
059                try {
060                        setStoresLowerCaseIdentifiers(databaseMetaData.storesLowerCaseIdentifiers());
061                }
062                catch (SQLException ex) {
063                        logger.debug("Error retrieving 'DatabaseMetaData.storesLowerCaseIdentifiers' - " + ex.getMessage());
064                }
065        }
066
067        @Override
068        @Nullable
069        public String metaDataSchemaNameToUse(@Nullable String schemaName) {
070                if (schemaName != null) {
071                        return super.metaDataSchemaNameToUse(schemaName);
072                }
073
074                // Use current user schema if no schema specified...
075                String userName = getUserName();
076                return (userName != null ? userName.toUpperCase() : null);
077        }
078
079}