/*
* Copyright 1999-2017 Alibaba Group Holding Ltd.
*
* 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.
*/
package com.alibaba.druid.pool.vendor;
import java.io.Serializable;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import com.alibaba.druid.pool.ValidConnectionChecker;
import com.alibaba.druid.pool.ValidConnectionCheckerAdapter;
import com.alibaba.druid.util.JdbcUtils;
/**
* A MSSQLValidConnectionChecker.
*/
public class MSSQLValidConnectionChecker extends ValidConnectionCheckerAdapter implements ValidConnectionChecker, Serializable {
private static final long serialVersionUID = 1L;
public MSSQLValidConnectionChecker(){
}
public boolean isValidConnection(final Connection c, String validateQuery, int validationQueryTimeout) throws Exception {
if (c.isClosed()) {
return false;
}
Statement stmt = null;
try {
stmt = c.createStatement();
stmt.setQueryTimeout(validationQueryTimeout);
stmt.execute(validateQuery);
return true;
} catch (SQLException e) {
throw e;
} finally {
JdbcUtils.close(stmt);
}
}
}