Click here to close now.

Welcome!

Microservices Journal Authors: Carmen Gonzalez, Liz McMillan, Roger Strukhoff, Pat Romanski, Jayaram Krishnaswamy

Related Topics: Microservices Journal

Microservices Journal: Article

XML Binding Frameworks in the Context of Service-Oriented Architecture

Make an informed choice about a binding framework for your SOA needs

XMLBeans (http://xmlbeans.apache.org): XMLBeans uses XML Schema to compile to Java interfaces and classes that allow modification of XML instance data. XMLBeans provides setter and getter methods like JavaBeans. XMLBeans distinguishes itself by fully supporting XML Schema. During demarshalling an XML instance the full XML infoset is kept and is available to the developer. This is critical because a subset of XML is not easily represented in Java, e.g., the order of elements or comments might be needed in an application.

JAXB (www.java.sun.com/xml/jaxb): JAXB is a standard for XML binding and consists of two parts. First, JAXB contains a compiler that reads a schema and produces the equivalent Java object model. This generated object model captures the structure of XML better than general-purpose APIs like DOM or SAX, making it a lot easier to manipulate XML content.

The second part is an API, through which applications communicate with generated code. The JAXB implementation from SUN JWSDP1.5 is used.

Quantitative Evaluation of the Frameworks
We have quantitatively evaluated the XML binding frameworks on the following parameters.

  1. Marshalling Time - Marshalling is the process of generating an XML representation for an object in memory. As with Java object serialization, the representation needs to include all dependent objects: objects referenced by our main object, objects referenced by those objects, and so on.
  2. Demarshalling Time - Demarshalling is the reverse process of marshalling; it builds an object (and potentially a graph of linked objects) in memory from an XML representation.
  3. Memory Load - JVM Heap memory used for the whole process of marshalling and demarshalling using the respective XML binding frameworks.
Performance Tests
The test run used three samples of XML varied by its nature (segmentation factor). The test cases had to execute the selected binding frameworks on the sample XML files serially some x number of times. In addition to these, x number of threads have been executed concurrently. The combination of these test scenarios is an indicator of the memory load on a platform and time statistics of each of these utilities (see Table 1).

Test Suite
The JProbe profiler and Memory Debugger have been used to capture the performance, memory, and threading coverage issues of the respective binding frameworks. Each test case is run as a stand-alone session to have snapshots of the performance captured for each program execution. The tests are performed on a system with the following configuration:

  • Pentium IV 1.8 GHz
  • 512 MB RAM
  • Virtual Memory: 768 MB
Quantitative Results
Marshalling Time

The graphs in Figures 4.1-4.4 represent the marshalling performance for simple and complex XML respectively. Higher performance from JiBX is due to the byte code enhancement done at the compile time. It avoids introspection at runtime.

As seen from Figures 4.3 and 4.4, for multiple concurrent threads the results for XMLBeans worsen, whereas JiBX on the other hand has the same pattern.

Demarshalling Time
Refer to Figures 4.5 and Fig 4.6. Castor provides good support for data binding using code generation, but demarshalling performance is weak compared to others. The graph pattern is similar in the case of concurrent runs.

Castor uses the SAX2 parser and parses the XML file in an event-driven manner, thus reducing its speed and performance as compared to JiBX.

JiBX uses XMLPull parsing technique, unlike the push parsing techniques such as SAX. Instead of the parser calling methods in the handler to report document components, one calls the parser to get each component in turn.

Memory Load
Memory load over the entire run (composed of demarshalling marshalling) is low for JiBX as it uses the XMLPull parsing technique during demarshalling, which doesn't require the parser to maintain the state in the document. Castor uses the SAX2 parser, which requires the parser to maintain the state in the document. JAXB is relatively inefficient in terms of memory usage.

Inferences
From the performance analysis of the four data-binding frameworks, a SWOT analysis is presented in Figure 5. Based on information from Figure 5 and from the performance charts seen earlier, JiBX outperforms all of the other binding frameworks by a wide margin on both time and memory usage. JAXB scores well on marshalling and demarshalling time, but its memory usage is higher than the others. XMLBeans has a major performance hit but is more memory-efficient than Castor and JAXB. Depending on the specific requirement of an application, a suitable XML binding framework can be chosen.

Summary
We have illustrated in this article the pivotal role XML binding frameworks can play in context of SOA. To enable practitioners to make an informed choice about the appropriate XML binding platform, we have carried out a detailed quantitative analysis of some of the popular XML binding frameworks in the J2EE context, and presented the results.

References

More Stories By Dr. Srinivas Padmanabhuni

Dr. Srinivas Padmanabhuni is a principal researcher with the Web Services Centre of Excellence in SETLabs, Infosys Technologies, and specializes in Web Services, service-oriented architecture, and grid technologies alongside pursuing interests in Semantic Web, intelligent agents, and enterprise architecture. He has authored several papers in international conferences. Dr. Padmanabhuni holds a PhD degree in computing science from University of Alberta, Edmonton, Canada.

More Stories By Bijoy Majumdar

Bijoy Majumdar is a member of the Web Services COE (Center of Excellence) for Infosys Technologies, a global IT consulting firm, and has substantial experience in publishing papers, presenting papers at conferences, and defining standards for SOA and Web services. Prior to Infosys, Bijoy Majumdar worked as an IT Analyst, and had been a member of the GE Center of Excellence (e-center) under the E-Business Practice of Tata Consultancy Services.

More Stories By Ujval Mysore

Ujval Mysore is a member of the Web Services COE (Center of Excellence) for Infosys Tehcnologies, a global IT consulting firm, and have substantial experience in publishing papers, presenting papers at conferences, and defining standards for SOA and Web services. The Web Services COE specializes in SOA, Web services, and other related technologies. Dr. Srinivas Padmanabhuni heads the Web Services COE.

More Stories By Vikram Sitaram

Vikram Sitaram is a member of the Web Services COE (Center of Excellence) for Infosys Tehcnologies, a global IT consulting firm, and have substantial experience in publishing papers, presenting papers at conferences, and defining standards for SOA and Web services. The Web Services COE specializes in SOA, Web services, and other related technologies. Dr. Srinivas Padmanabhuni heads the Web Services COE.

Comments (2) View Comments

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.


Most Recent Comments
tejasvi 08/12/05 12:13:44 PM EDT

this article is excellent

XML News Desk 08/02/05 04:46:17 PM EDT

XML Binding Frameworks in the Context of Service-Oriented Architecture. This article critically evaluates the role of XML binding frameworks play in the context of service-oriented architecture (SOA) platforms, and it also provides an objective evaluation of the popular XML binding frameworks in a J2EE environment.

@MicroservicesExpo Stories
SYS-CON Events announced today the IoT Bootcamp – Jumpstart Your IoT Strategy, being held June 9–10, 2015, in conjunction with 16th Cloud Expo and Internet of @ThingsExpo at the Javits Center in New York City. This is your chance to jumpstart your IoT strategy. Combined with real-world scenarios and use cases, the IoT Bootcamp is not just based on presentations but includes hands-on demos and walkthroughs. We will introduce you to a variety of Do-It-Yourself IoT platforms including Arduino, Ras...
SYS-CON Events announced today the DevOps Foundation Certification Course, being held June ?, 2015, in conjunction with DevOps Summit and 16th Cloud Expo at the Javits Center in New York City, NY. This sixteen (16) hour course provides an introduction to DevOps – the cultural and professional movement that stresses communication, collaboration, integration and automation in order to improve the flow of work between software developers and IT operations professionals. Improved workflows will res...
SYS-CON Events announced today that Soha will exhibit at SYS-CON's DevOps Summit New York, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Soha delivers enterprise-grade application security, on any device, as agile as the cloud. This turnkey, cloud-based service enables customers to solve secure application access and delivery challenges that traditional or virtualized network solutions cannot solve because they are too expensive, inflexible and operational...
Containers and microservices have become topics of intense interest throughout the cloud developer and enterprise IT communities. Accordingly, attendees at the upcoming 16th Cloud Expo at the Javits Center in New York June 9-11 will find fresh new content in a new track called PaaS | Containers & Microservices Containers are not being considered for the first time by the cloud community, but a current era of re-consideration has pushed them to the top of the cloud agenda. With the launch ...
SYS-CON Events announced today that Ciqada will exhibit at SYS-CON's @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Ciqada™ makes it easy to connect your products to the Internet. By integrating key components - hardware, servers, dashboards, and mobile apps - into an easy-to-use, configurable system, your products can quickly and securely join the internet of things. With remote monitoring, control, and alert messaging capability, you will mee...
of cloud, colocation, managed services and disaster recovery solutions, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. TierPoint, LLC, is a leading national provider of information technology and data center services, including cloud, colocation, disaster recovery and managed IT services, with corporate headquarters in St. Louis, MO. TierPoint was formed through the strategic combination of some of t...
Public Cloud IaaS started it's life in the developer and startup communities and has grown rapidly to a $20B+ industry, but it still pales in comparison to how much is spent worldwide on IT: $3.6 trillion. In fact, there are 8.6 million data centers worldwide, the reality is many small and medium sized business have server closets and colocation footprints filled with servers and storage gear. While on-premise environment virtualization may have peaked at 75%, the Public Cloud has lagged in ado...
Dave will share his insights on how Internet of Things for Enterprises are transforming and making more productive and efficient operations and maintenance (O&M) procedures in the cleantech industry and beyond. Speaker Bio: Dave Landa is chief operating officer of Cybozu Corp (kintone US). Based in the San Francisco Bay Area, Dave has been on the forefront of the Cloud revolution driving strategic business development on the executive teams of multiple leading Software as a Services (SaaS) ap...
Microsoft is releasing in the near future Azure Service Fabric as a preview beta. Azure Service Fabric is built to run microservices - a complex application consisting of smaller, interlocked components that enables updating components without disrupting service. Microsoft has used this over the past few years internally for many of its own applications and the new release is for general use, a new product. OSIsoft is an early adopter of this system and run with it to expand into the explo...
ProfitBricks, the provider of painless cloud infrastructure IaaS, today released its SDK for Ruby, written against the company's new RESTful API. The new SDK joins ProfitBricks' previously announced support for the popular multi-cloud open-source Fog project. This new Ruby SDK, which exposes advanced functionality to take advantage of ProfitBricks' simplicity and productivity, aligns with ProfitBricks' mission to provide a painless way to automate infrastructure in the cloud. Ruby is a genera...
ProfitBricks, the provider of painless cloud infrastructure for IaaS, today announced the release of a Node.js SDK written against its recently launched REST API. This new JavaScript based library provides coverage for all existing ProfitBricks REST API functions. With additional libraries set to release this month, ProfitBricks continues to prove its dedication to the DevOps community and commitment to making cloud migrations and cloud management painless. Node.js is an open source, cross-pl...
ProfitBricks has launched its new DevOps Central and REST API, along with support for three multi-cloud libraries and a Python SDK. This, combined with its already existing SOAP API and its new RESTful API, moves ProfitBricks into a position to better serve the DevOps community and provide the ability to automate cloud infrastructure in a multi-cloud world. Following this momentum, ProfitBricks has also introduced several libraries that enable developers to use their favorite language to code ...
ProfitBricks, the provider of painless cloud infrastructure IaaS, announced the launch of its new DevOps Central and REST API, along with support for three multi-cloud libraries and a Python SDK. This, combined with its already existing SOAP API and its new RESTful API, moves ProfitBricks into a position to better serve the DevOps community and provide the ability to automate cloud infrastructure in a multi-cloud world. Following this momentum, ProfitBricks is also today introducing several l...
What exactly is a cognitive application? In her session at 16th Cloud Expo, Ashley Hathaway, Product Manager at IBM Watson, will look at the services being offered by the IBM Watson Developer Cloud and what that means for developers and Big Data. She'll explore how IBM Watson and its partnerships will continue to grow and help define what it means to be a cognitive service, as well as take a look at the offerings on Bluemix. She will also check out how Watson and the Alchemy API team up to off...
The 17th International Cloud Expo has announced that its Call for Papers is open. 17th International Cloud Expo, to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, APM, APIs, Microservices, Security, Big Data, Internet of Things, DevOps and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding bu...
The 5th International DevOps Summit, co-located with 17th International Cloud Expo – being held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA – announces that its Call for Papers is open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the...
So I guess we’ve officially entered a new era of lean and mean. I say this with the announcement of Ubuntu Snappy Core, “designed for lightweight cloud container hosts running Docker and for smart devices,” according to Canonical. “Snappy Ubuntu Core is the smallest Ubuntu available, designed for security and efficiency in devices or on the cloud.” This first version of Snappy Ubuntu Core features secure app containment and Docker 1.6 (1.5 in main release), is available on public clouds, ...
There is no quick way to learn Jython API but to experiment with it. The easiest way is to start with Jytutor extension for XL Deploy. Now you can also use the code snippet for exposing jython/python context in XL Deploy environment by running it directly in Jytutor Here’s how you can go ahead with that Download the Jytutor extension referring to the Jytutor Blog or from the following link https://github.com/xebialabs-community/xld-jytutor-plugin/releases Shutdown your XL Deploy server...
79% of new products miss their launch date. That was the conclusion of a CGT/Sopheon Survey in which the impact of such market misses were also explored. What it didn't dig into was the reason why so many products and projects miss their launch date. When we start digging into the details with respect to applications, we can find at least one causal factor in the delivery process, specifically that portion which focuses on the actual move into production, from which consumers (internal and...
Security is one the more prominent of the application service categories, likely due to its high profile impact. After all, if security fails, we all hear about it. The entire Internet. Forever. So when one conducts a survey on the state of application delivery (which is implemented using application services) you kinda have to include security. Which of course, we did.