Keep App Deployments while recreating the domain in WLST offline

Question

What is the easiest way to keep the app deployments (that were assigned after the domain creation) while recreating the domain from the basic and extension templates in WLST offline while using the "OverWriteDomain' option?
I can use configToScript to create a deployment script, but that involves starting the domain after creating and running the script.
Trying to do as much as possible in the offline world.
As part of the recreate process, I can read the domain directory to see if it exists and go through the tree to see if there are any app deployments, keep that info in memory or write to a file and after the recreate is done assign the app deployments again and write the domain.
Looking for an easy way to export and import the AppDeployment data. Do not know if there is a JSON interface.

Answer 1

I ended up doing this.
appdeps={}
try:
     readDomain(dom.targetDomainDir)
     cd('/AppDeployments')
     apps=ls(returnMap='true')
     for app in apps:
          appdeps[app]=ls(app,returnMap='true', returnType='a')
except:
     pass
try:
     closeDomain()
except:
     pass
deployApps(appdeps)
def deployApps(pAppDeps):
     try:
          cd('/')
          for pAppDep in pAppDeps.keys():
               try:
                    cd('/')
                    create(pAppDep,'AppDeployment')
                    cd('/AppDeployment/'+pAppDep)
                    for pEntry in pAppDeps[pAppDep].entrySet():
                         print 'setting key=' + pEntry.key + ',value=' + str(pEntry.value)
                         try:
                              if pEntry.value!=None:
                                   set(pEntry.key,pEntry.value)
                         except:
                              pass
               except:
                    pass
     except:
          pass