Welcome!

Java IoT Authors: Sanjeev Khurana, Elizabeth White, Carmen Gonzalez, Patrick Hubbard, Liz McMillan

Related Topics: Java IoT

Java IoT: Article

SOA + EDA = Open Source ESB: ServiceMix(*)

Developing a new type of ESB

Today's enterprise applications are distributed by design. For applications to interact with one another over networks optimally, they require Service Oriented and Event Driven Architectures made up of loosely federated business resources, that interact by exchanging requests (for data delivery and integration, as well as for services) and that can handle streams of diverse business processes in real-time. To support large-scale, enterprise integration, organizations need to adopt strategies that rationalize the infrastructure for integration based on the requirements of business/IT organization itself. The only successful integration efforts are those that provide agile, pervasive and low cost solutions in order to cater to today's diverse deployment environments, while fully leveraging available standards.

Enterprise Service Bus (ESB), which can be defined as middleware that brings together both integration technologies and runtime services to make business services widely available for reuse, offers the best solution for meeting today's enterprise application integration challenges by providing a software infrastructure that enables SOA. However, there are currently a number of different vendors that provide ESB solutions, some of which focus purely on SOAP/HTTP and others who provide multi-protocol capabilities. Because these vendors span the horizon from big enterprise generalists (app servers), to mid-tier enterprise integration providers, all the way to smaller, ESB/integration specific-providers - there doesn't seem to be an established consensus regarding the key requirements for an ESB.

As application architects, we have often thought about what requirements would define an ESB designed specifically to cater to the needs of an agile, enterprise integration model. In building for these specific requirements, we realized that we actually needed to develop a new type of ESB - hence the ServiceMix project.

Characteristics of an Agile ESB
The main criteria we were looking for in our ESB are as follows:

  • Standards based - While standards-based support is marketed by many ESB vendors, the support is provided externally, requiring developers to work with proprietary APIs when directly interacting with internal APIs. ServiceMix was designed with the requirement to eliminate product API lock-in, by being built from the ground up to support the Java Business Integration specification (JSR 208). Our agile ESB needs to use JBI as a first class citizen, but also support POJO deployment for ease of use and testing.
  • Flexible - Another characteristic of an agile ESB is the flexibility with which it can be deployed within enterprise application integration framework: standalone, embedded in an application component, or as part of the services supported by an application server. This allows for component re-use throughout the enterprise. For example, the binding for a real-time data feed might be aggregated as a web-service running within an application server, or streamed directly into a fat client on a traders desk. An agile ESB should be able to run both types of configurations seamlessly.

    To provide rapid prototyping, an agile ESB should support both scripting languages and embedded rule engines, allowing business processes to be modeled and deployed quickly.

    Some have argued that integration functionality is best place at the edges of the network. Others prefer a logical ESB server to be separate from the edges - to keep the edges simple and lightweight. Both approaches have their strengths and weaknesses - so we wanted an ESB that is simple and lightweight to deploy into any JVM or into a web server or a full Java EE server - reusing all the available facilities in which it is deployed.

  • Reliable - Our ESB needs to handle network outages and system failures and to be able to reroute message flows and requests to circumvent failures.
  • Breadth of Connectivity - An agile ESB must support both two way reliable Web-services and Message Oriented-Middleware and needs to co-operate seamlessly with EIS and custom components, such as batch files.
In addition we want support for the various new WS-* standards to do with connectivity like WS-Notification, WS-DistributedManagement and WS-ReliableMessaging.

We also wanted our agile ESB to be vendor independent and open source, to promote user control of source code and direction. An added benefit of this is not only the zero purchase cost, but the total cost of ownership will be reduced where users are actively contributing and maintaining our ESB.

We rapidly came to the conclusion, that as there was no single product that would adequately meet our needs, we'd have just go a head and build one!

What Is JBI?
There has been a fair amount of buzz about JBI and there is some confusion over what JBI (JSR 208) is.

JBI is a simple API to a Normalized Message Service and Router along with a component and management model for deploying integration services such as routing engines, BPEL engines, rule systems, transformation engines etc.

JBI provides a logical XML messaging network which maps well to web services, HTTP, email and JMS/MOM while easily adapting to legacy systems, binary transports and RPC systems like EJB and CORBA. Think of it as the next logical abstraction above JMS, with support for different message exchanges (one way, request response etc).

The binding components deal with all the plumbing and protocol stuff, then service engine components work on a logical XML layer, providing content based routing, orchestration, rules, transformations and custom enrichment etc.

So BPEL engines no longer need to deal with all of the possible protocols, transports and wire formats; they can just delegate to JBI for the physical routing to service endpoints. Similarly content based routers, rules engines, transformation engines can sit on the JBI bus and do their thing. JBI is looking like being a great API for integration component developers.

Many application developers will still end up writing POJO services and dropping them into their container and exposing them as web services - so often they won't need to use the JBI APIs directly; but for integration vendors and open source integration projects, JBI provides a way for us to all work together at the ESB level and to reuse integration containers, components and tooling.

ServiceMix
ServiceMix is an open source (Apache licensed) Enterprise Service Bus which is compliant with the Java Business Specification (JBI), JSR 208.

ServiceMix already provides JBI support for Apache Geronimo, the first application server to provide this feature.

More Stories By Robert Davies

Rob Davies is chief technology officer at FuseSource. One of the original members of the team, he co-founded LogicBlaze which was purchased by IONA and is now FuseSource. Prior to working for Logicblaze, he was a founder and the CTO of SpiritSoft which was purchased by Sun Microsystems. Rob has over 20 years experience of developing high performance distributed enterprise systems and products for telcos and finance, and is best known for his work at the Apache Software Foundation where he co-founded the ServiceMix, ActiveMQ, and Camel projects. He is now the PMC chair of ServiceMix and continues to be an active committer on all three projects. You can read his blog, On Open Source Integration, or follow him on twitter.

More Stories By James Strachan

James Strachan, technical director at IONA, is responsible for helping the Company provide open source offerings for organizations requiring secure, high-performance distributed systems and integration solutions. He is heavily involved in the open source community, and has co-founded several Apache projects, including ActiveMQ, Camel, Geronimo and ServiceMix. He also created the "Groovy" scripting language and additional open source projects such as dom4j, jaxen and Jelly. Prior to joining IONA, James spent more than 20 years in enterprise software development. Previously, James co-founded LogicBlaze, Inc., an enterprise open source company acquired by IONA. Prior to that, he founded SpiritSoft, Inc., a company providing enterprise Java middleware services.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@ThingsExpo Stories
Your homes and cars can be automated and self-serviced. Why can't your storage? From simply asking questions to analyze and troubleshoot your infrastructure, to provisioning storage with snapshots, recovery and replication, your wildest sci-fi dream has come true. In his session at @DevOpsSummit at 20th Cloud Expo, Dan Florea, Director of Product Management at Tintri, will provide a ChatOps demo where you can talk to your storage and manage it from anywhere, through Slack and similar services ...
SYS-CON Events announced today that CA Technologies has been named “Platinum Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY, and the 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business – from apparel to energy – is being rewritten by software. From ...
SYS-CON Events announced today that Cloudistics, an on-premises cloud computing company, has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Cloudistics delivers a complete public cloud experience with composable on-premises infrastructures to medium and large enterprises. Its software-defined technology natively converges network, storage, compute, virtualization, and management into a ...
Keeping pace with advancements in software delivery processes and tooling is taxing even for the most proficient organizations. Point tools, platforms, open source and the increasing adoption of private and public cloud services requires strong engineering rigor - all in the face of developer demands to use the tools of choice. As Agile has settled in as a mainstream practice, now DevOps has emerged as the next wave to improve software delivery speed and output. To make DevOps work, organization...
My team embarked on building a data lake for our sales and marketing data to better understand customer journeys. This required building a hybrid data pipeline to connect our cloud CRM with the new Hadoop Data Lake. One challenge is that IT was not in a position to provide support until we proved value and marketing did not have the experience, so we embarked on the journey ourselves within the product marketing team for our line of business within Progress. In his session at @BigDataExpo, Sum...
SYS-CON Events announced today that Ocean9will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Ocean9 provides cloud services for Backup, Disaster Recovery (DRaaS) and instant Innovation, and redefines enterprise infrastructure with its cloud native subscription offerings for mission critical SAP workloads.
DevOps is often described as a combination of technology and culture. Without both, DevOps isn't complete. However, applying the culture to outdated technology is a recipe for disaster; as response times grow and connections between teams are delayed by technology, the culture will die. A Nutanix Enterprise Cloud has many benefits that provide the needed base for a true DevOps paradigm.
With major technology companies and startups seriously embracing Cloud strategies, now is the perfect time to attend @CloudExpo | @ThingsExpo, June 6-8, 2017, at the Javits Center in New York City, NY and October 31 - November 2, 2017, Santa Clara Convention Center, CA. Learn what is going on, contribute to the discussions, and ensure that your enterprise is on the right path to Digital Transformation.
SYS-CON Events announced today that T-Mobile will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. As America's Un-carrier, T-Mobile US, Inc., is redefining the way consumers and businesses buy wireless services through leading product and service innovation. The Company's advanced nationwide 4G LTE network delivers outstanding wireless experiences to 67.4 million customers who are unwilling to compromise on ...
SYS-CON Events announced today that SoftLayer, an IBM Company, has been named “Gold Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2016, at the Javits Center in New York, New York. SoftLayer, an IBM Company, provides cloud infrastructure as a service from a growing number of data centers and network points of presence around the world. SoftLayer’s customers range from Web startups to global enterprises.
SYS-CON Events announced today that CrowdReviews.com has been named “Media Sponsor” of SYS-CON's 20th International Cloud Expo, which will take place on June 6–8, 2017, at the Javits Center in New York City, NY. CrowdReviews.com is a transparent online platform for determining which products and services are the best based on the opinion of the crowd. The crowd consists of Internet users that have experienced products and services first-hand and have an interest in letting other potential buyers...
The taxi industry never saw Uber coming. Startups are a threat to incumbents like never before, and a major enabler for startups is that they are instantly “cloud ready.” If innovation moves at the pace of IT, then your company is in trouble. Why? Because your data center will not keep up with frenetic pace AWS, Microsoft and Google are rolling out new capabilities In his session at 20th Cloud Expo, Don Browning, VP of Cloud Architecture at Turner, will posit that disruption is inevitable for c...
SYS-CON Events announced today that Infranics will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Since 2000, Infranics has developed SysMaster Suite, which is required for the stable and efficient management of ICT infrastructure. The ICT management solution developed and provided by Infranics continues to add intelligence to the ICT infrastructure through the IMC (Infra Management Cycle) based on mathemat...
SYS-CON Events announced today that SD Times | BZ Media has been named “Media Sponsor” of SYS-CON's 20th International Cloud Expo, which will take place on June 6–8, 2017, at the Javits Center in New York City, NY. BZ Media LLC is a high-tech media company that produces technical conferences and expositions, and publishes a magazine, newsletters and websites in the software development, SharePoint, mobile development and commercial UAV markets.
Now that the world has connected “things,” we need to build these devices as truly intelligent in order to create instantaneous and precise results. This means you have to do as much of the processing at the point of entry as you can: at the edge. The killer use cases for IoT are becoming manifest through AI engines on edge devices. An autonomous car has this dual edge/cloud analytics model, producing precise, real-time results. In his session at @ThingsExpo, John Crupi, Vice President and Eng...
SYS-CON Events announced today that Telecom Reseller has been named “Media Sponsor” of SYS-CON's 20th International Cloud Expo, which will take place on June 6–8, 2017, at the Javits Center in New York City, NY. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
In his General Session at 16th Cloud Expo, David Shacochis, host of The Hybrid IT Files podcast and Vice President at CenturyLink, investigated three key trends of the “gigabit economy" though the story of a Fortune 500 communications company in transformation. Narrating how multi-modal hybrid IT, service automation, and agile delivery all intersect, he will cover the role of storytelling and empathy in achieving strategic alignment between the enterprise and its information technology.
The buzz continues for cloud, data analytics and the Internet of Things (IoT) and their collective impact across all industries. But a new conversation is emerging - how do companies use industry disruption and technology enablers to lead in markets undergoing change, uncertainty and ambiguity? Organizations of all sizes need to evolve and transform, often under massive pressure, as industry lines blur and merge and traditional business models are assaulted and turned upside down. In this new da...
Web Real-Time Communication APIs have quickly revolutionized what browsers are capable of. In addition to video and audio streams, we can now bi-directionally send arbitrary data over WebRTC's PeerConnection Data Channels. With the advent of Progressive Web Apps and new hardware APIs such as WebBluetooh and WebUSB, we can finally enable users to stitch together the Internet of Things directly from their browsers while communicating privately and securely in a decentralized way.
SYS-CON Events announced today that MobiDev, a client-oriented software development company, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place June 6-8, 2017, at the Javits Center in New York City, NY, and the 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. MobiDev is a software company that develops and delivers turn-key mobile apps, websites, web services, and complex softw...