Mulesoft Overview

Mule, the runtime engine of Anypoint Platform, is a lightweight Java-based enterprise service bus (ESB) and integration platform that allows developers to connect applications together quickly and easily, enabling them to exchange data. It enables easy integration of existing systems, regardless of the different technologies that the applications use, including JMS, Web Services, JDBC, HTTP, and more. The ESB can be deployed anywhere, can integrate and orchestrate events in real time or in batch, and has universal connectivity.

What is MuleSoft?

Mule is a lightweight enterprise service bus, which its an integration framework provided by MuleSoft. This is a complete JAVA based platform but it can connect to any other platform and APIs such as Facebook, Twitter, LinkedIn, and many more applications. 

MuleSoft allows developers to connect and interact with any application regardless of whatever language is used to build that application in a very flexible manner. It builds an active communication channel between the integrated application to send and exchange data over a reliable and secure platform.

In this tutorial, we will learn

  • What is Mule?
  • Mule ESB functionality and design.
  • Ways to implement ESB 
  • ESB core component and functionality. 
  • Mule Core Architecture.
  • Overview of Mule ESB.
  • Advantage or Mule ESB.

Introducing MuleSoft ESB

MuleSoft ESB (stands for Enterprise Service Bus) is a middleware tool created by MuleSoft to integrates N number of the application over a liner bus-like infrastructure. It is an efficiently designed infrastructure which supports uniform communication and data exchange through the various application. This ESB enables you to connect N number of the application over a Mule Bus and build the communication between one and another application without any interruption. 

Ways to implement ESB 

The purpose of the Mule ESB is to separate applications from each other and activate them to communicate in a highly scalable and speedy network Bus. It’s full proof controllable network system that also minimizes the risk of data loss. ESB can be implemented using the Adaptor and the BUS as below.

Mule uses messaging servers like JMS and AMQP which allows the implementation of BUS connectivity by separating the application from each other. The Bus implementation is only can be achieved through Mule Servers. 

Adaptors are responsible to act similar to a telephone network which allows you to communicate from one person to another. Similarly, the adaptor allows you to build a communication network to exchange data between the applications. 

ESB Bus allows consistent passage of data and information from one application to another. This way Mule achieves a great level of application communication over a single platform. Rather than using multiple different applications and APIs over the different networks to manage your application, Mule offers cloud-based application interaction and communication networks to support application interactions. 

Adaptors are not single-end operation controller, rather it also controls security, network errors, monitoring, and message routing activities.

Guiding Principles provided by ESB

The guiding principles of ESB are also called as Core Principle of Mule in general.

  • Orchestration: This is a process of synchronizing two or more applications with each other to achieve a continues flow of data and process. 
  • Transformation:  This is a process of transforming data from the raw format to a specific application process data format. 
  • Transportation: This is a process similar to the transportation layer which allows the transport of messages using FTP, HTTP, JMS protocols for network transmissions. 
  • Mediation: It provided multiple interfaces to support multiple application interactions with multiple versions of services. 
  • Non-Functional Consistency:  This guideline ensures the mechanical support for handling transactions and security within the integrated environment.

Why ESB is needed?

ESB has a vast integration architecture, which allows us to integrate and operate N number of applications through a single platform. Let’s see some of the important areas where you can use ESB features.

  • Integrating Multiple Applications on a single platform: Whenever is the need for integration of one or more services or application Mule ESB fulfills the needs of the requirement. 
  • Migrating the application to cloud or scaling large in future: It makes it easier to scale as per the increase in service demand by the users. It handles scalp up and scales down the process of the application with ease. You can easily deploy a new application or migrating the existing one without any infrastructure issues related to another application. 
  • Utilizing the benefits of multiple network protocols: ESB usage FTP, HTTP, JMS internet transfer protocols to ensure secure transmission of data from one application to another. 
  • Message routing feasibility: ESB also transmits messages between the applications and ensure smooth communication network. The message header, body and message content can be transmitted from one end to another in this ecosystem.
  • Consumption and Composition:  It is useful when if you need to publish services with composition and consumption.

Difference between Point to Point integration and ESB integration 

For a middle or higher level application the number of integrations increases rapidly with the requirement to provide services, web hosting, messaging, database manipulation, storage, and so many other related concerns. With the P2P integration technique, you can build the architecture to support the application but at the same time, the architecture will become complex when the number of applications increases. Also, P2P has allotted of restriction over platform compatibility and language support. Let take an example to understand this.

Mule ESB consists of two components for managing integrations

Service Registry 

All the services exposed to Mule ESB are stored, registered and published from the service registry. It’s a repository that allows you to consume and access services and application capabilities as per your requirement. 

Centralized Administration 

It is a transparent administration unit where all the access and capability of application through services get controlled and monitored as a centralized unit of services. 

Functionalities of ESB 

Validate (V): Schema validation is handled by Validate. ESB usage a validation parser and updated schema to validate the schema outlines.  For example, you can check the XML document confirming a schema.

<?xml version="1.0" encoding="UTF-8"?>
<heading> Caller Reminder </heading>
<body>Lets learn Mule this weekend! </body>

Enrich (E): The purpose of enriching is to add additional data to a message. It simply adds more meaning to the destination user.

Transform (T): The process of converting data into a sequential format that is easily accessible to the requesting application is called transformation. For example, when you travel abroad you require to exchange your currency into the destination country currency which makes the currency easily movable into that country. Similarly, data also requires being transformed into a specific format for the acceptance of the requesting application. 

Routing (R):  You can call it as an endpoint or gatekeeper of the service which provides rout to the services to commute between the source and destination. 

Operate (O): The word operates itself defines the functionality performed by the component. It either invokes required services or communicates with the targeted application for the service processing.

Overview of Mule ESB

As discussed earlier in the introduction Mule ESB is a lightweight Enterprise Service Bus that allows interaction between the application over a single platform. Mule is a widely used cloud service provided by MuleSoft Org to serve the corporate and individual developer who is serving the clients with a wide range of software applications. Mule ESB gives you the flexibility to create a communication channel between various applications that are critical for the service operation. It also simplifies the need for huge hardware configuration to support such a large scale application by simplify integrating to the cloud-based platform. MuleSoft is a SaaS-based platform that minimizes the use of large scale hardware setup and reduces hardware installation costs as well. You can get the below editions of MuleSoft as per your need. 

  • Community Edition 
  • Enterprise Edition 

A high level of scalability is also the most eye-catching advantage of the MuleSoft platform where you can buy community addition and later scale as enterprise addition as per your need.

Advantages of Mulesoft ESB

Mule ESB offers a wide range of application support features such as 

  • It offers simple drag and drops graphical design to ease UI design complexities 
  • It supports visual data mapping ad transformation to give to data insights by making it more effective and meaningful. 
  • You can get the flexibility to access more than 100 pre-built connectors for applications. 
  • It gives you one end centralized monitoring and administration.
  • It gives to robust enterprise security features to operate in an ultra-secure platform. 
  • ESB gives to the accessibility of N number APIs for your application support and enhancement needs.
  • MuleSoft allows you to operate through a secure Gateway connection and protects from on-premises/ Cloud data treats. 
  • Service Registry manages the publication of data and services through registered access. 
  • You can get access through the web-based management console.
  • A service flow analyzer allows you to rapidly test the applications and services.
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