DriverShim.java

package com.thinkbiganalytics.nifi.v2.thrift;

/*-
 * #%L
 * thinkbig-nifi-hadoop-service
 * %%
 * Copyright (C) 2017 ThinkBig Analytics
 * %%
 * Licensed 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.
 * #L%
 */

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 final Driver driver;

    /**
     * constructor used to wrap a driver
     *
     * @param driver the driver to wrap
     */
    DriverShim(Driver driver) {
        this.driver = driver;
    }

    @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();
    }

}