package org.springframework.jdbc.core.metadata;
import java.util.Arrays;
import java.util.List;
import javax.sql.DataSource;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.dao.DataAccessResourceFailureException;
import org.springframework.jdbc.support.JdbcUtils;
import org.springframework.jdbc.support.MetaDataAccessException;
public final class CallMetaDataProviderFactory {
public static final List<String> supportedDatabaseProductsForProcedures = Arrays.asList(
"Apache Derby",
"DB2",
"MySQL",
"Microsoft SQL Server",
"Oracle",
"PostgreSQL",
"Sybase"
);
public static final List<String> supportedDatabaseProductsForFunctions = Arrays.asList(
"MySQL",
"Microsoft SQL Server",
"Oracle",
"PostgreSQL"
);
private static final Log logger = LogFactory.getLog(CallMetaDataProviderFactory.class);
private CallMetaDataProviderFactory() {
}
public static CallMetaDataProvider createMetaDataProvider(DataSource dataSource, final CallMetaDataContext context) {
try {
return (CallMetaDataProvider) JdbcUtils.extractDatabaseMetaData(dataSource, databaseMetaData -> {
String databaseProductName = JdbcUtils.commonDatabaseName(databaseMetaData.getDatabaseProductName());
boolean accessProcedureColumnMetaData = context.isAccessCallParameterMetaData();
if (context.isFunction()) {
if (!supportedDatabaseProductsForFunctions.contains(databaseProductName)) {
if (logger.isInfoEnabled()) {
logger.info(databaseProductName + " is not one of the databases fully supported for function calls " +
"-- supported are: " + supportedDatabaseProductsForFunctions);
}
if (accessProcedureColumnMetaData) {
logger.info("Metadata processing disabled - you must specify all parameters explicitly");
accessProcedureColumnMetaData = false;
}
}
}
else {
if (!supportedDatabaseProductsForProcedures.contains(databaseProductName)) {
if (logger.isInfoEnabled()) {
logger.info(databaseProductName + " is not one of the databases fully supported for procedure calls " +
"-- supported are: " + supportedDatabaseProductsForProcedures);
}
if (accessProcedureColumnMetaData) {
logger.info("Metadata processing disabled - you must specify all parameters explicitly");
accessProcedureColumnMetaData = false;
}
}
}
CallMetaDataProvider provider;
if ("Oracle".equals(databaseProductName)) {
provider = new OracleCallMetaDataProvider(databaseMetaData);
}
else if ("PostgreSQL".equals(databaseProductName)) {
provider = new PostgresCallMetaDataProvider((databaseMetaData));
}
else if ("Apache Derby".equals(databaseProductName)) {
provider = new DerbyCallMetaDataProvider((databaseMetaData));
}
else if ("DB2".equals(databaseProductName)) {
provider = new Db2CallMetaDataProvider((databaseMetaData));
}
else if ("HDB".equals(databaseProductName)) {
provider = new HanaCallMetaDataProvider((databaseMetaData));
}
else if ("Microsoft SQL Server".equals(databaseProductName)) {
provider = new SqlServerCallMetaDataProvider((databaseMetaData));
}
else if ("Sybase".equals(databaseProductName)) {
provider = new SybaseCallMetaDataProvider((databaseMetaData));
}
else {
provider = new GenericCallMetaDataProvider(databaseMetaData);
}
if (logger.isDebugEnabled()) {
logger.debug("Using " + provider.getClass().getName());
}
provider.initializeWithMetaData(databaseMetaData);
if (accessProcedureColumnMetaData) {
provider.initializeWithProcedureColumnMetaData(databaseMetaData,
context.getCatalogName(), context.getSchemaName(), context.getProcedureName());
}
return provider;
});
}
catch (MetaDataAccessException ex) {
throw new DataAccessResourceFailureException("Error retrieving database meta-data", ex);
}
}
}