com.sky.projects.pool.kafka.KafkaConnectionFactory.java Source code

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Here is the source code for com.sky.projects.pool.kafka.KafkaConnectionFactory.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.kafka;

import java.util.Properties;

import org.apache.commons.pool2.PooledObject;
import org.apache.commons.pool2.impl.DefaultPooledObject;

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

import kafka.javaapi.producer.Producer;
import kafka.producer.ProducerConfig;

/**
 * Kafka 
 * 
 * @author zealot
 *
 */
@SuppressWarnings("serial")
class KafkaConnectionFactory implements ConnectionFactory<Producer<byte[], byte[]>> {

    /** config */
    private final ProducerConfig config;

    public KafkaConnectionFactory(final ProducerConfig config) {
        this.config = config;
    }

    public KafkaConnectionFactory(final String brokers, final String type, final String acks, final String codec,
            final String batch) {
        Properties props = new Properties();

        props.setProperty(KafkaConfig.BROKERS_LIST_PROPERTY, brokers);
        props.setProperty(KafkaConfig.PRODUCER_TYPE_PROPERTY, type);
        props.setProperty(KafkaConfig.REQUEST_ACKS_PROPERTY, acks);
        props.setProperty(KafkaConfig.COMPRESSION_CODEC_PROPERTY, codec);
        props.setProperty(KafkaConfig.BATCH_NUMBER_PROPERTY, batch);

        this.config = new ProducerConfig(props);
    }

    public KafkaConnectionFactory(final Properties properties) {
        String brokers = properties.getProperty(KafkaConfig.BROKERS_LIST_PROPERTY);
        if (brokers == null)
            throw new ConnectionException("[" + KafkaConfig.BROKERS_LIST_PROPERTY + "] is required !");

        this.config = new ProducerConfig(properties);
    }

    @Override
    public PooledObject<Producer<byte[], byte[]>> makeObject() throws Exception {
        return new DefaultPooledObject<Producer<byte[], byte[]>>(this.createConnection());
    }

    @Override
    public void destroyObject(PooledObject<Producer<byte[], byte[]>> p) throws Exception {
        Producer<byte[], byte[]> producer = p.getObject();
        if (null != producer)
            producer.close();
    }

    @Override
    public boolean validateObject(PooledObject<Producer<byte[], byte[]>> p) {
        return null != p.getObject();
    }

    @Override
    public void activateObject(PooledObject<Producer<byte[], byte[]>> p) throws Exception {
        // TODO
    }

    @Override
    public void passivateObject(PooledObject<Producer<byte[], byte[]>> p) throws Exception {
        // TODO
    }

    @Override
    public Producer<byte[], byte[]> createConnection() throws Exception {
        return new Producer<byte[], byte[]>(config);
    }
}