We are using ServiceMix 4 in our company, now due to deprecation of Java 6 we are planning to upgrade both Java and ServiceMix to the latest version.
But I can see lots of configuration changes included in Servicemix 7, so how can we upgrade from SMX4 TO SMX7?
Also, where can I find tutorials to learn SMX7 completely?
I've done a small search and all I end up is a simple intro as mentioned in SMXx. x quickstart.pdf.
All the bundles that were built previously was done by different people and is entirely different from the standard way. So I want to learn SMX completely such that either I can alter the old way if necessary or I can rebuild on my own.
Depending on the components of Servicemix you used in your projects this is going to be more or less painful. From version 4 to version 7 almost everything under the hood (karaf, cxf, camel, ...) changed massively.
The tutorials won´t help you much, as they cover only basic stuff. There is a book "Instant Apache Servicemix". My advice would be to get your hands dirty and ask specific questions in the user group when they arise.
If you did everything like recommended (eg wrote unit test and integration tests), you deploy version 7, run your tests, fix your bugs and are done.
If not, I would suggest to move piece by piece from SMX4 to SMX7 in order to isolate issues. Now would be a good time to write those tests (if you do not have them already).
I understand your eagerness to get to SMX7, however an intermediate step to an earlier release may be helpful in your situation.