mailmonk.client.MailMonk.java Source code

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Here is the source code for mailmonk.client.MailMonk.java

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/*
* Copyright 2009-2012 Alma Media 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 mailmonk.client;

import java.io.IOException;
import java.util.Properties;

import com.rabbitmq.client.*;

/**
 * Main client to Mail Monk.
 * @author Kai Kousa
 * */
public class MailMonk {

    private String username;
    private String password;
    private String host;
    private String queueName = "mailmonk-jobs";

    private Connection connection;
    private Channel channel;

    public MailMonk() {
    }

    /**
     * Creates an instance and sets it up from <code>Properties</code>.
     * Configuration looks for the following properties:
     * <ul>
     *    <li>mailmonk.mq.username - your RabbitMQ username</li>
     *    <li>mailmonk.mq.password - your RabbitMQ password</li>
     *    <li>mailmonk.mq.host - host of you RabbitMQ instalation</li>
     *    <li>mailmonk.mq.queueName - the desired queueName (mailmonk-jobs is the default, change this only if you need to)</li>
     * </ul>
     * */
    public MailMonk(Properties p) {
        setup(p);
    }

    /**
     * Configure Mail Monk.
     * */
    private void setup(Properties p) {
        setUsername(p.getProperty("mailmonk.mq.username"));
        setPassword(p.getProperty("mailmonk.mq.password"));
        setHost(p.getProperty("mailmonk.mq.host"));

        //if null, keep the default queue name
        if (p.getProperty("mailmonk.mq.queueName") != null) {
            setQueueName(p.getProperty("mailmonk.mq.queueName"));
        }

    }

    /**
     * Connect to a Message Queue and open a channel for 
     * sending Mail Monk jobs.
     * */
    public void connect() {
        try {
            ConnectionFactory factory = new ConnectionFactory();
            factory.setUsername(getUsername());
            factory.setPassword(getPassword());
            factory.setHost(getHost());

            connection = factory.newConnection();

            channel = connection.createChannel();
            channel.queueDeclare(getQueueName(), false, false, false, null);
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    /**
     * Close connections to Message Queue
     * */
    public void disconnect() {
        try {
            connection.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * Send a message to be processed by Mail Monk.
     * @param message
     * */
    public synchronized void send(Message message) {
        try {
            String json = MessageSerializer.serialize(message);

            channel.basicPublish("", getQueueName(), null, json.getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getHost() {
        return host;
    }

    public void setHost(String host) {
        this.host = host;
    }

    public String getQueueName() {
        return queueName;
    }

    public void setQueueName(String queueName) {
        this.queueName = queueName;
    }

}