com.sky.projects.pool.hbase.HbaseConnectionFactory.java Source code

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Here is the source code for com.sky.projects.pool.hbase.HbaseConnectionFactory.java

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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 com.sky.projects.pool.hbase;

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

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.HConnection;
import org.apache.hadoop.hbase.client.HConnectionManager;

import com.sky.projects.pool.ConnectionException;
import com.sky.projects.pool.ConnectionFactory;

/**
 * Hbase
 * 
 * @author zealot
 *
 */
class HbaseConnectionFactory implements ConnectionFactory<HConnection> {

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

    /** hadoopConfiguration */
    private final Configuration hadoopConfiguration;

    public HbaseConnectionFactory(final Configuration hadoopConfiguration) {
        this.hadoopConfiguration = hadoopConfiguration;
    }

    /**
     *
     * @param host
     *            zookeeper?
     * @param port
     *            zookeeper?
     * @param master
     *            hbase
     * @param rootdir
     *            hdfs?
     */
    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);
    }

    /**
     * @since 1.2.1
     * @param properties
     *            ??
     */
    public HbaseConnectionFactory(final Properties properties) {
        this.hadoopConfiguration = new Configuration();

        for (Entry<Object, Object> entry : properties.entrySet()) {
            this.hadoopConfiguration.set((String) entry.getKey(), (String) entry.getValue());
        }
    }

    @Override
    public PooledObject<HConnection> makeObject() throws Exception {
        return new DefaultPooledObject<HConnection>(this.createConnection());
    }

    @Override
    public void destroyObject(PooledObject<HConnection> p) throws Exception {
        HConnection connection = p.getObject();

        if (connection != null)
            connection.close();
    }

    @Override
    public boolean validateObject(PooledObject<HConnection> p) {
        HConnection connection = p.getObject();

        if (connection != null)
            return ((!connection.isAborted()) && (!connection.isClosed()));

        return false;
    }

    @Override
    public void activateObject(PooledObject<HConnection> p) throws Exception {
        // TODO
    }

    @Override
    public void passivateObject(PooledObject<HConnection> p) throws Exception {
        // TODO
    }

    @Override
    public HConnection createConnection() throws Exception {
        return HConnectionManager.createConnection(hadoopConfiguration);
    }

}