GAE app migration

[caringi]

Hi,

    I was searching information about app migration from GAE to OpenShift when I found your project.

    Congratulations, it's an amazing project.

    I need to migrate a GAE Java webapp that uses:

    - Bigtable

    - Mail API

    - Backends API

    I read your documentation about Bigtable/Datastore/JPA/JDO and Mail API, but nothing about Backends API...

    So, my question is... Does CapeDwarf supports Backends API?

    Another question is about the database... What is the best way to export data from GAE and import in JBoss+CapeDwarf?

    Thanks.

--

Augusto Mecking Caringi

[alesj]

So, my question is... Does CapeDwarf supports Backends API?

Not in the same sense that Appspot does it -- true modularization across different JVMs.

Backends API - afaik, was replaced by Modules API, which is what we somehow support.

Atm we allow you to deploy the app as .ear, but we then use single JVM with multiple virtual servers: see standalone-capedwarf-modules.xml for more details on virtual server config.

But we do plan to extend JBossAS7 / Wildfly's domain mode, to better mimic modularization.

I would say that the current state is more for test purposes, so you can also tests some form of modularization,

where extended domain mode would be closer to real stuff.

If you need more help setting this up, let me know.

Another question is about the database... What is the best way to export data from GAE and import in JBoss+CapeDwarf?

We have a tool - BulkLoader - that knows how to import GAE's data.

You need to first use GAE's export tools, to get the data out of GAE, and then point our BulkLoader to it.

* https://github.com/capedwarf/capedwarf-blue/blob/master/tools/src/main/java/org/jboss/capedwarf/tools/BulkLoader.java

* https://github.com/capedwarf/capedwarf-blue/blob/master/tools/src/test/java/org/jboss/test/capedwarf/tools/test/BulkLoaderTest.java

    - Mail API

For this you need to configure SMTP in app. server's config.

(standalone-capedwarf.xml or standalone-capedwarf-modules.xml)

[alesj]

So, my question is... Does CapeDwarf supports Backends API?

Not in the same sense that Appspot does it -- true modularization across different JVMs.

Backends API - afaik, was replaced by Modules API, which is what we somehow support.

OK, BackendService is still there -- I guess the actual impl behind is now modules?

In our case we basically mock backends atm, returning you the same instance.

(I guess we need to update this with Modules info ... hint: contribution welcome :-))

A simple test can be found here:

* https://github.com/capedwarf/capedwarf-blue/blob/master/testsuite/src/test/java/org/jboss/test/capedwarf/testsuite/config/test/BackendsTest.java

[alesj]

(I guess we need to update this with Modules info ... hint: contribution welcome :-))

[CAPEDWARF-207] Update BackendService impl wrt Modules info - JBoss Issue Tracker