com.baifendian.swordfish.common.hive.service2.HiveService2PoolFactory.java Source code

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Here is the source code for com.baifendian.swordfish.common.hive.service2.HiveService2PoolFactory.java

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/*
 * Copyright (C) 2017 Baifendian Corporation
 *
 * 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.baifendian.swordfish.common.hive.service2;

import java.sql.SQLException;
import java.util.Properties;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.pool.BaseKeyedPoolableObjectFactory;
import org.apache.hive.jdbc.HiveConnection;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HiveService2PoolFactory extends BaseKeyedPoolableObjectFactory {

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

    /**
     * ?
     *
     * @param object
     * @return
     * @throws Exception
     */
    @Override
    public HiveConnection makeObject(Object object) throws Exception {
        // ? client 
        if (object != null) {
            HiveService2ConnectionInfo hiveService2ConnectionInfo = (HiveService2ConnectionInfo) object;
            Properties info = new Properties();

            if (StringUtils.isNotEmpty(hiveService2ConnectionInfo.getUser())) {
                info.put("user", hiveService2ConnectionInfo.getUser());
            }

            if (StringUtils.isNotEmpty(hiveService2ConnectionInfo.getPassword())) {
                info.put("password", hiveService2ConnectionInfo.getPassword());
            }

            try {
                HiveConnection connection = new HiveConnection(hiveService2ConnectionInfo.getUri(), info);
                return connection;
            } catch (SQLException e) {
                logger.error("Connection hive exception", e);
            }
        }

        return null;
    }

    /**
     * ?
     *
     * @param key
     * @param obj
     * @throws Exception
     */
    @Override
    public void destroyObject(Object key, Object obj) throws Exception {
        HiveConnection hiveConnection = (HiveConnection) obj;
        hiveConnection.close();
    }

    /**
     * 
     *
     * @param key
     * @param obj
     * @return
     */
    @Override
    public boolean validateObject(Object key, Object obj) {
        HiveConnection hiveConnection = (HiveConnection) obj;

        try {
            boolean isClosed = hiveConnection.isClosed();
            return !isClosed;
        } catch (SQLException e) {
            logger.error("hive close exception", e);
        }

        return false;
    }
}