Architecture of Mule

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Introduction

Mule is a lightweight integration platform that most widely used

integration platform in the industry. Mule enables you to connect

anything, anywhere. Rather than creating multiple point-to-point

integrations between systems, services, APIs, and devices, you can use

Mule to intelligently manage message routing, data mapping,

orchestration, reliability, security, and scalability between nodes.

Mule Soft Gurus/Experts says Mule is so named because it “carries the

heavy development load” of connecting systems.

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MULE-ESB Integration advantages

• Helps to connect to any third party application easily using Mule

• We can integrate the applications or systems on premise or in the cloud (Web/Standalone/ Enterprise applications).

• Easily integrate anything from a “plain old Java object” (POJO) to a component from another framework.

• Move your environment to cloud and communicate easily with cloud providers

• Provides most of the standard/advanced security features for the applications

• B2B e-commerce activities

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Providing an External HTTP or HTTPS Port

•Mule ESB is based on ideas from Enterprise Service Bus (ESB) architectures. The key advantage of an ESB is that it allows different applications to communicate with each other by acting as a transit system for carrying data between applications within your intranet or across the Internet. There are currently several commercial ESB implementations on the market. However, many of these provide limited functionality or are built on top of an existing application server or messaging server, locking you into that specific vendor. Mule ESB is vendor-neutral, so different vendor implementations can plug in to it. You are never locked in to a specific •vendor when you use Mule ESB.

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Elements in Mule

• Flow is sequence of processing events• A Message enters a flow may pass a wide variety of processors.• Message Source is component consist of Request-Response Inbound

End-point• Message Processors is processing your data using transformer or

component• The advantage of networking your applications is that one application

can send data to another application. However, many applications don't have the ability to read or process data coming from another application. Mule ESB solves this problem by providing a messaging framework that reads, transforms, and sends data as messages between applications. A message is simply a packet of data that can be handled and sent between applications on a specific channel (also called a queue).

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Logging

All log messages from your application are captured by the CloudHub logging service and available through the log search tool in the CloudHub console. If you wish to expose additional information in your logs for diagnostic or audit purposes, Mule provides a logger element for fine grained logging of message content.

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Message Structure in Mule

Message Object consist Message

Message contains the mail message with header information and the header information is consist of inbound property and outbound property . Inbound property will be immutable. Below diagram illustrates the message structure.

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