Patterns

My previous article on MDM (Master Data Management) discusses how to connect to MDR (Master Data Repositories) and access Master Data. This article focuses on an end-to-end MDM solution including the connector layer.

Security is a key aspect of any successful enterprise SOA solution which allows channels for internal and external parties to access business assets. Security measures should also enable other vital aspects of the solution such as

• Flexibility - By catering to new security requirements which arise with changing business policies
• Interoperability - By facilitating secure communication with heterogeneous systems which talk over different security protocols.

Store and forward messaging patterns play a major role when it comes to asynchronous messaging. When its comes to Enterprise application integration, store and forward patterns can be used for Integrating systems that supports different message traffic patterns, handling fail over scenarios, priority mediation of messages etc...

In today's world, Enterprise System integration has become an integral part for many businesses. Enterprise application integration can be viewed as developing frameworks and patterns comprising of a collection of technologies and services which form middle-ware to enable inter connectivity of systems and applications across an enterprise. In a nutshell this boils down to linking systems on different business systems such as CRM , SCM , HRM, POS etc to automate and simplify data flow between them to the greatest extent possible.

This article describes how to implement the popular publisher-subscriber message exchange pattern using various WSO2 middleware products. Although the material is suitable for readers who have experience with WSO2 ESB, the material is self explanatory as much as possible.

Carbon products are already connected to an internal LDAP user store by default. We also can configure them to be connected to external user stores such as Apache Directory Server, Active Directory Server in ReadOnly or Read/Write. It is also possible to connect to an external user store using secured LDAP. This tutorial will take you through the steps of how to configure the latter. For this tutorial, we are going to use WSO2 Governance Registry and Apache Directory Server to demonstrate the scenario.

Store and forward messaging patterns plays a major role when it comes to asynchronous messaging. When its comes to Enterprise application integration , store and forward patters can be use for Integrating systems that accept different message traffic patterns , Handling fail over scenarios , Priority mediation of messages etc.

Eight years after the publication of, “Enterprise Integration Patterns: Designing, Building, and Deploying Messaging Solutions,” the book has sold some 50,000 copies worldwide. Moreover, patterns described have stood the test of time, not the least thanks to being embraced by the open source middleware community. In his keynote presentation at WSO2Con 2011, co-author Gregor Hohpe, now an engineer at Google, reviewed the origin of the patterns along with their current use and future directions. Here are some of his observations on the present and future.

Gregor Hohpe is a Staff Software Engineer with Google. As a widely recognized thought leader on asynchronous messaging and service-oriented architectures. he co-authored the seminal book ‘Enterprise Integration Patterns’ (Addison-Wesley, 2004) and contributed to a variety of publications, including “97 Things Every Architect Should Know”. In 2005, Joel Spolsky selected Gregor’s article ‘Starbucks Does Not Use Two-phase Commit’ for his ‘Best Software Writing’. Find out more about his work at eaipatterns.com