Reporting over non valid meta data files #6853
Description
Is your feature request related to a problem? Please describe.
There should be a way to report the processes where the meta data files are not valid over the internal used schema as this was introduced with #6815.
Describe the solution you'd like
An report based on a list of processes and a report based on processes of a project (projects with hundred thousand processes) should be available and report all this processes back which are not valid. The report should contain the process id, process title and the list of errors which are in the meta data file of this process.
As the check for processes for projects with hundred thousand of processes are time consuming the report file should be stored on the server side or should be "somehow" made accessible by the user which started the report.
Describe alternatives you've considered
Using a shell script on Unix/Linux with some tools (f.e. xmllint for schema check) may work only on a limited amount of systems and maybe not so easy to use.