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A simple multi-purpose connection pool client (Kafka & Hbase & Redis & RMDB & Socket & Http)
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/*
 * Copyright 2015-2016 Dark Phoenixs (Open-Source Organization).
 *
 * 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 org.darkphoenixs.pool.hbase;

import org.apache.commons.pool2.PooledObject;
import org.apache.commons.pool2.impl.DefaultPooledObject;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.client.Connection;
import org.darkphoenixs.pool.ConnectionException;
import org.darkphoenixs.pool.ConnectionFactory;

import java.util.Map.Entry;
import java.util.Properties;

/**
 * Title: HbaseConnectionFactory
 * Description: Hbase连接工厂
 *
 * @author Victor
 * @version 1.0
 * @see ConnectionFactory
 * @since 2015年9月19日
 */
class HbaseConnectionFactory implements ConnectionFactory {

    /**
     * serialVersionUID
     */
    private static final long serialVersionUID = 4024923894283696465L;

    /**
     * hadoopConfiguration
     */
    private final Configuration hadoopConfiguration;

    /**
     * Title: HbaseConnectionFactory
     * Description: 构造方法
     *
     * @param hadoopConfiguration hbase配置
     */
    public HbaseConnectionFactory(final Configuration hadoopConfiguration) {

        this.hadoopConfiguration = hadoopConfiguration;
    }

    /**
     * Title: HbaseConnectionFactory
     * Description: 构造方法
     *
     * @param host    zookeeper地址
     * @param port    zookeeper端口
     * @param master  hbase主机
     * @param rootdir hdfs数据目录
     */
    public HbaseConnectionFactory(final String host, final String port, final String master, final String rootdir) {

        this.hadoopConfiguration = new Configuration();

        if (host == null)
            throw new ConnectionException("[" + HbaseConfig.ZOOKEEPER_QUORUM_PROPERTY + "] is required !");
        this.hadoopConfiguration.set(HbaseConfig.ZOOKEEPER_QUORUM_PROPERTY, host);

        if (port == null)
            throw new ConnectionException("[" + HbaseConfig.ZOOKEEPER_CLIENTPORT_PROPERTY + "] is required !");
        this.hadoopConfiguration.set(HbaseConfig.ZOOKEEPER_CLIENTPORT_PROPERTY, port);

        if (master != null)
            this.hadoopConfiguration.set(HbaseConfig.MASTER_PROPERTY, master);

        if (rootdir != null)
            this.hadoopConfiguration.set(HbaseConfig.ROOTDIR_PROPERTY, rootdir);
    }

    /**
     * @param properties 参数配置
     * @since 1.2.1
     */
    public HbaseConnectionFactory(final Properties properties) {

        this.hadoopConfiguration = new Configuration();

        for (Entry entry : properties.entrySet()) {

            this.hadoopConfiguration.set((String) entry.getKey(), (String) entry.getValue());
        }
    }

    @Override
    public PooledObject makeObject() throws Exception {

        Connection connection = this.createConnection();

        return new DefaultPooledObject(connection);
    }

    @Override
    public void destroyObject(PooledObject p) throws Exception {

        Connection connection = p.getObject();

        if (connection != null)

            connection.close();
    }

    @Override
    public boolean validateObject(PooledObject p) {

        Connection connection = p.getObject();

        if (connection != null)

            return ((!connection.isAborted()) && (!connection.isClosed()));

        return false;
    }

    @Override
    public void activateObject(PooledObject p) throws Exception {
        // TODO Auto-generated method stub

    }

    @Override
    public void passivateObject(PooledObject p) throws Exception {
        // TODO Auto-generated method stub

    }

    @Override
    public Connection createConnection() throws Exception {

        Connection connection = org.apache.hadoop.hbase.client.ConnectionFactory
                .createConnection(hadoopConfiguration);

        return connection;
    }

}