/*****************************************************************
 *   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.cayenne.datasource;

import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.logging.Logger;

import javax.sql.DataSource;

/**
 * A DataSource wrapper that prevents callers from obtaining connections from
 * another {@link DataSource}.
 * 
 * @since 4.0
 */
class StoppedDataSource implements DataSource {

	private DataSource dataSource;

	public StoppedDataSource(DataSource dataSource) {
		this.dataSource = dataSource;
	}

	@Override
	public Connection getConnection() throws SQLException {
		throw new SQLException("DataSource is stopped");
	}

	@Override
	public Connection getConnection(String arg0, String arg1) throws SQLException {
		throw new SQLException("DataSource is stopped");
	}

	@Override
	public PrintWriter getLogWriter() throws SQLException {
		return dataSource.getLogWriter();
	}

	@Override
	public int getLoginTimeout() throws SQLException {
		return dataSource.getLoginTimeout();
	}

	@Override
	public boolean isWrapperFor(Class<?> iface) throws SQLException {
		return (StoppedDataSource.class.equals(iface)) ? true : dataSource.isWrapperFor(iface);
	}

	@Override
	public void setLogWriter(PrintWriter arg0) throws SQLException {
		dataSource.setLogWriter(arg0);
	}

	@Override
	public void setLoginTimeout(int arg0) throws SQLException {
		dataSource.setLoginTimeout(arg0);
	}

	@SuppressWarnings("unchecked")
	@Override
	public <T> T unwrap(Class<T> iface) throws SQLException {
		return StoppedDataSource.class.equals(iface) ? (T) this : dataSource.unwrap(iface);
	}

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