com.open.license.config.ContextConfig.java Source code

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Here is the source code for com.open.license.config.ContextConfig.java

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package com.open.license.config;

import java.util.ArrayList;
import java.util.List;

import javax.sql.DataSource;

import org.apache.activemq.broker.BrokerPlugin;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.security.AuthenticationUser;
import org.apache.activemq.security.SimpleAuthenticationPlugin;
import org.apache.commons.dbcp.BasicDataSource;
import org.apache.log4j.Logger;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.core.io.ClassPathResource;

/**
 * 
 * Distibution under GNU GENERAL PUBLIC LICENSE Version 2, June 1991
 * 
 * @author malalanayake
 * @created Nov 8, 2015 7:47:29 PM
 * 
 * @blog https://malalanayake.wordpress.com/
 */
@Configuration
public class ContextConfig {

    private Logger log = Logger.getLogger(getClass().getName());
    public final String APP_ENV;
    public final String DATASOURCE_URL;
    public final String DATABASE_USERNAME;
    public final String DATABASE_PASSWORD;
    public final boolean START_EMBEDDED_BROKER;
    public final String ACTIVEMQ_HOST_NAME;
    public final String ACTIVEMQ_TCP_PORT;
    public final String ACTIVEMQ_STOMP_PORT;

    public ContextConfig() {
        APP_ENV = System.getProperty("APP_ENV");

        DATASOURCE_URL = System.getProperty("DATASOURCE_URL");
        DATABASE_USERNAME = System.getProperty("DATABASE_USERNAME");
        DATABASE_PASSWORD = System.getProperty("DATABASE_PASSWORD");

        START_EMBEDDED_BROKER = Boolean.valueOf(System.getProperty("START_EMBEDDED_BROKER"));
        ACTIVEMQ_HOST_NAME = System.getProperty("ACTIVEMQ_HOST_NAME");
        ACTIVEMQ_TCP_PORT = System.getProperty("ACTIVEMQ_TCP_PORT");
        ACTIVEMQ_STOMP_PORT = System.getProperty("ACTIVEMQ_STOMP_PORT");
    }

    @Bean
    public PropertySourcesPlaceholderConfigurer propertyPlaceholderConfigurer() {
        log.info("[START:Load Application Properties]");

        String propertiesFilename = "/application-" + APP_ENV + ".properties";

        PropertySourcesPlaceholderConfigurer configurer = new PropertySourcesPlaceholderConfigurer();
        configurer.setLocation(new ClassPathResource(propertiesFilename));
        log.info("[ACTIVATE:Profile " + APP_ENV + "]");
        log.info("[END:Load Application Properties]");

        // Start ActiveMQ Broker if enabled
        startActiveMqBroker();
        return configurer;
    }

    @Bean
    public DataSource dataSource() {
        log.info("[START:Set DataSource]");
        BasicDataSource basicDataSource = new BasicDataSource();
        basicDataSource.setUrl(DATASOURCE_URL);
        basicDataSource.setUsername(DATABASE_USERNAME);
        basicDataSource.setPassword(DATABASE_PASSWORD);
        log.info("[END:Set DataSource]");
        return basicDataSource;

    }

    private void startActiveMqBroker() {
        BrokerService broker = new BrokerService();
        if (START_EMBEDDED_BROKER) {
            log.info("[START:ActiveMQ Broker]");
            try {
                SimpleAuthenticationPlugin authentication = new SimpleAuthenticationPlugin();

                List<AuthenticationUser> users = new ArrayList<AuthenticationUser>();
                users.add(new AuthenticationUser("admin", "admin", "admins,publishers,consumers"));
                authentication.setUsers(users);
                broker.setPlugins(new BrokerPlugin[] { authentication });

                broker.addConnector("tcp://" + ACTIVEMQ_HOST_NAME + ":" + ACTIVEMQ_TCP_PORT);
                broker.addConnector("stomp://" + ACTIVEMQ_HOST_NAME + ":" + ACTIVEMQ_STOMP_PORT);
                broker.start();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

}