Our cloud integration bits require a tool for adjusting the configuration for certain use cases. A common example would be - take this `cloud.xml` file, remove all caches, add a new, replicated cache as default one.

The tool should take either configuration or a file name as input (e.g. `config-tool --add-default-cache -f cloud.xml` or `cat cloud.xml | config-tool --add-default-cache > cloud-new.xml`) and print out configuration either to System Out or to a file.

Do you have any ideas what could I use to write such a tool? Those technologies come into my mind:

Thanks,

Sebastian