com.vnet.demo.service.azure.servicebus.AzureServiceBusServiceFactory.java Source code

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Here is the source code for com.vnet.demo.service.azure.servicebus.AzureServiceBusServiceFactory.java

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/*
 * Copyright (c) 2015-2020, Chen Rui
 *
 * 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.vnet.demo.service.azure.servicebus;

import java.io.IOException;
import java.net.URLEncoder;
import java.util.Hashtable;

import javax.jms.ConnectionFactory;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

import org.springframework.beans.factory.config.PropertiesFactoryBean;

import com.vnet.demo.utils.SpringUtil;

public class AzureServiceBusServiceFactory {

    private static AzureServiceBusServiceFactory serviceFactory = null;

    private String username;

    private String password;

    private String host;

    private AzureServiceBusService azureServiceBusService;

    private AzureServiceBusServiceFactory() {
    }

    public synchronized static AzureServiceBusServiceFactory getInstance() {
        if (serviceFactory == null) {
            serviceFactory = new AzureServiceBusServiceFactory();
        }
        return serviceFactory;
    }

    public AzureServiceBusService create() {
        if (this.azureServiceBusService == null) {
            try {
                PropertiesFactoryBean properties = SpringUtil.getBean(PropertiesFactoryBean.class);
                this.username = (String) properties.getObject().get("azure.servicebus.username");
                this.password = (String) properties.getObject().get("azure.servicebus.password");
                this.host = (String) properties.getObject().get("azure.servicebus.host");
                String defaultQueue = (String) properties.getObject().get("azure.servicebus.queue");

                String connectionString = "amqps://" + username + ":" + encode(password) + "@" + host;
                Hashtable<String, String> env = new Hashtable<String, String>();
                env.put(Context.INITIAL_CONTEXT_FACTORY,
                        "org.apache.qpid.amqp_1_0.jms.jndi.PropertiesFileInitialContextFactory");
                env.put("connectionfactory.ServiceBusConnectionFactory", connectionString);

                Context context = new InitialContext(env);
                ConnectionFactory connectionFactory = (ConnectionFactory) context
                        .lookup("ServiceBusConnectionFactory");
                azureServiceBusService = new AzureServiceBusService(connectionFactory, defaultQueue);
            } catch (NamingException | IOException e) {
                e.printStackTrace();
            }
            ;
        }
        return this.azureServiceBusService;
    }

    public static String encode(String encodee) {
        String retval = "";
        try {
            retval = URLEncoder.encode(encodee, "UTF-8");
        } catch (Exception e) {
            System.out.print("Encoding failed\n");
        }
        return retval;
    }

}