Scripting improvements : api, cli, parse, cluster

[jamoore]

Several ideas which may be of general use:

Parsing

• on uploadScript or at the very latest after the first use of any script, the JobParams should be cached and saved as an OriginalFile with Format = "JobParam?" (or similar).

• submit() should fail if it doesn't provide the necessary inputs. There might need to be both soft & hard requirements.

• Script writers should be encouraged to start their script as early as possible with "client = omero.scripts.client(...)" (even before other imports) to make the parsing more robust. Other methods may be needed

CLI

• bin/omero scripts run <file> should start up a Processor instance and pass it to the new method ServiceFactory.useProcessor(processorPrx)->InteractiveProcessorPrx. This would simulate a true deployment.

Cluster

• Using the bin/omero scripts run method, it's possible without any icegridnode processes running on a cluster to do:

    bin/omero load<<EOF
    login -s <session-uuid>
    scripts run <file name>
  EOF
  

• Going one step further, we could add: bin/omero cluster [mpi|sge|pbs|etc] <file name> -n <nodes> <node variable which would automatically execute the above via the given cluster method.