Adventures of a service oriented architect
I wanted to find out, from which module another Natural module was called. My goal was to make sure, that the module can only be called from a certain other module and raises an error, if a “disallowed” module calls it. I don’t want to get into the details here of why this is a … Read more
As I found out totay, the performance of redimensioning an array in Natural largely depends on the statement you use. I compared RESIZEand EXPAND and found out, that RESIZE is more than two times slower than EXPAND. With bigger arrays, RESIZE may even be up to 20 times more slowly than EXPAND! Unfortunately, the documentation … Read more
Sam Newman answers this question in his recent post Microservices For Greenfield?: I’m certainly not saying ‘never do microservices for greenfield’, but I am saying that the factors above lead me to conclude that you should be cautious. Only split around those boundaries that are very clear at the beginning, and keep the rest on … Read more
As I’ve mentioned earlier, I like to re-use my existing code whenever possible (and if not possible I’ll try to find a way ;-)). When writing Java Services in webMethods’ Integration Server, I wanted to use an existing method that provides easy access and type safety when working with the service pipeline (i.e. interface IData). … Read more
I created a Java Service in webMethod’s Integration Server that should log something to the server.log file. As it turns out, this is quite simple: Generate Java code for calling the internal Service pub.flow.debugLog by right-clicking on the Service in Software AG Designer and selecting “Generate Code…”, “For calling this service from another service”. The … Read more
Today, I wanted to use the JDBC adapter in webMethod’s Integration Server to connect to a database from a Java service. As it turns out, the configuration was quite frustrating for me. Here’s a history of the problems that appeared while trying to get a database connection running: Error encountered [ART.118.5042] Adapter Runtime (Connection): Unable … Read more
I published several Natural subprograms as a service in webMethods Integration Server via the EntireX adapter which uses a Natural RPC server on our SuSE Linux server to access the Natural modules. After a Natural service has not been called from the outside for a certain period of time (about 1 hour), the next call … Read more
Apparently, creating and deploying an web service with Java EE 7 is just as easy as it was with Java EE 6. This maybe due to the fact, that support for web services and SOAP in JAX-WS hasn’t changed much since Java EE 6, as Adam Bien points out here: The State of SOAP / … Read more
Modularization is an important concept of programming. So, when I wanted to create a Java Service in webMethods’ Integration Server today, I wanted to re-use my existing Java code that already provided the feature I wanted to publish as a Service. However, this is not as easy as it sounds đ Here are the steps … Read more
The following problem with webMethods Integration Server already occured twice in our environment, so I think it’s time to document the fix. When opening the generated WSD for a web service, I got the following error: [ISS.0088.9163] Could not retrieve WSDL for service […], WSD not found. The problem was the URL generated by the … Read more