nifi-nar-bundles/nifi-standard-services/nifi-dbcp-service-bundle/nifi-dbcp-service/src/main/java/org/apache/nifi/dbcp/DriverShim.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
 *
 *     http://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.nifi.dbcp;

import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverPropertyInfo;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.Properties;
import java.util.logging.Logger;

/**
 *  Workaround which allows to use URLClassLoader for JDBC driver loading.
 *  (Because the DriverManager will refuse to use a driver not loaded by the system ClassLoader.)
 *
 */
class DriverShim implements Driver {
    private Driver driver;

    DriverShim(Driver d) {
        this.driver = d;
    }

    @Override
    public boolean acceptsURL(String u) throws SQLException {
        return this.driver.acceptsURL(u);
    }

    @Override
    public Connection connect(String u, Properties p) throws SQLException {
        return this.driver.connect(u, p);
    }

    @Override
    public int getMajorVersion() {
        return this.driver.getMajorVersion();
    }

    @Override
    public int getMinorVersion() {
        return this.driver.getMinorVersion();
    }

    @Override
    public DriverPropertyInfo[] getPropertyInfo(String u, Properties p) throws SQLException {
        return this.driver.getPropertyInfo(u, p);
    }

    @Override
    public boolean jdbcCompliant() {
        return this.driver.jdbcCompliant();
    }

    @Override
    public Logger getParentLogger() throws SQLFeatureNotSupportedException {
        return driver.getParentLogger();
    }

}