cayenne/src/main/java/org/apache/cayenne/dba/oracle/OracleSniffer.java

/*****************************************************************
 *   Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 ****************************************************************/

package org.apache.cayenne.dba.oracle;

import org.apache.cayenne.configuration.runtime.DbAdapterDetector;
import org.apache.cayenne.dba.DbAdapter;
import org.apache.cayenne.di.AdhocObjectFactory;
import org.apache.cayenne.di.Inject;

import java.sql.DatabaseMetaData;
import java.sql.SQLException;

/**
 * @since 1.2
 */
public class OracleSniffer implements DbAdapterDetector {

    protected AdhocObjectFactory objectFactory;

    public OracleSniffer(@Inject AdhocObjectFactory objectFactory) {
        this.objectFactory = objectFactory;
    }

    @Override
    public DbAdapter createAdapter(DatabaseMetaData md) throws SQLException {
        String dbName = md.getDatabaseProductName();
        if (dbName == null || !dbName.toUpperCase().contains("ORACLE")) {
            return null;
        }

        return md.getDriverMajorVersion() <= 8
                ? objectFactory.newInstance(DbAdapter.class, Oracle8Adapter.class.getName())
                : objectFactory.newInstance(DbAdapter.class, OracleAdapter.class.getName());
    }
}