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/*
 * Copyright 2020 the original author or authors.
 *
 * Licensed under the LGPL, Version 3.0 (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.gnu.org/licenses/lgpl-3.0.html
 *
 * 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 com.jn.sqlhelper.datasource;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.sql.DataSource;
import java.io.PrintWriter;
import java.sql.SQLException;

public abstract class AbstractDataSource implements DataSource {

    protected final Logger logger = LoggerFactory.getLogger(getClass());


    /**
     * Returns 0, indicating the default system timeout is to be used.
     */
    @Override
    public int getLoginTimeout() throws SQLException {
        return 0;
    }

    /**
     * Setting a login timeout is not supported.
     */
    @Override
    public void setLoginTimeout(int timeout) throws SQLException {
        throw new UnsupportedOperationException("setLoginTimeout");
    }

    /**
     * LogWriter methods are not supported.
     */
    @Override
    public PrintWriter getLogWriter() {
        throw new UnsupportedOperationException("getLogWriter");
    }

    /**
     * LogWriter methods are not supported.
     */
    @Override
    public void setLogWriter(PrintWriter pw) throws SQLException {
        throw new UnsupportedOperationException("setLogWriter");
    }


    //---------------------------------------------------------------------
    // Implementation of JDBC 4.0's Wrapper interface
    //---------------------------------------------------------------------

    @Override
    @SuppressWarnings("unchecked")
    public  T unwrap(Class iface) throws SQLException {
        if (iface.isInstance(this)) {
            return (T) this;
        }
        throw new SQLException("DataSource of type [" + getClass().getName() +
                "] cannot be unwrapped as [" + iface.getName() + "]");
    }

    @Override
    public boolean isWrapperFor(Class iface) throws SQLException {
        return iface.isInstance(this);
    }


    //---------------------------------------------------------------------
    // Implementation of JDBC 4.1's getParentLogger method
    //---------------------------------------------------------------------
    public java.util.logging.Logger getParentLogger() {
        return java.util.logging.Logger.getLogger(java.util.logging.Logger.GLOBAL_LOGGER_NAME);
    }

}