Extra LiveDataAlgorithm validation broke the FileEventDataListener

[Russell Taylor]

The addition of code in LiveDataAlgorithm::validateInputs() under #5366 had led to the creation of the listener over and over again. With most ILiveListeners, this is not a big deal, but the FileEventDataListener (which is used for testing) takes some action in the destructor (deletes a temporary workspace), which meant that testing live data using it is broken.

[Russell Taylor]

Branch is at feature/6738_create_fewer_livelisteners

[Russell Taylor]

Re #6738. Only create listener if the alg doesn't already 'have' one.

Changeset: 4cfce5894370aae6f93b7c1ccb145847dae0247a

[Russell Taylor]

Re #6738. Enable use of multiple FileEventDataListeners at same time.

Changeset: 4a6b15fa704c77479409484ad055a1aa5ceb7f7b

[Russell Taylor]

Re #6738. Documentation correction that didn't merit its own ticket.

Changeset: e06b9fb0a87d9797e80561296fe66fd7eb7cfcf8

[Russell Taylor]

To test: First edit your Mantid.user.properties to add the properties:

• fileeventdatalistener.filename - with the path to a pre-nexus or runinfo file (e.g. CNCS_7860_runinfo.xml)
• fileeventdatalistener.chunks - with some integer (e.g. 10)

Then run the StartLiveData algorithm, choosing FileEventDataListener as the Instrument. Before the above fix, the algorithm would stop with an error before loading the second 'chunk'. Now it should continue until the whole file has been loaded.

Test also that you can have more than one instance of MonitorLiveData running at the same time using a FileEventDataListener.

[Russell Taylor]

Re #6738. Only create listener if the alg doesn't already 'have' one.

Changeset: 4cfce5894370aae6f93b7c1ccb145847dae0247a

[Russell Taylor]

Re #6738. Enable use of multiple FileEventDataListeners at same time.

Changeset: 4a6b15fa704c77479409484ad055a1aa5ceb7f7b

[Russell Taylor]

Re #6738. Documentation correction that didn't merit its own ticket.

Changeset: e06b9fb0a87d9797e80561296fe66fd7eb7cfcf8

[Russell Taylor]

Re #6738. Only create listener if the alg doesn't already 'have' one.

Changeset: 4cfce5894370aae6f93b7c1ccb145847dae0247a

[Russell Taylor]

Re #6738. Enable use of multiple FileEventDataListeners at same time.

Changeset: 4a6b15fa704c77479409484ad055a1aa5ceb7f7b

[Russell Taylor]

Re #6738. Documentation correction that didn't merit its own ticket.

Changeset: e06b9fb0a87d9797e80561296fe66fd7eb7cfcf8

[Russell Taylor]

Re #6738. Only create listener if the alg doesn't already 'have' one.

Changeset: 4cfce5894370aae6f93b7c1ccb145847dae0247a

[Russell Taylor]

Re #6738. Enable use of multiple FileEventDataListeners at same time.

Changeset: 4a6b15fa704c77479409484ad055a1aa5ceb7f7b

[Russell Taylor]

Re #6738. Documentation correction that didn't merit its own ticket.

Changeset: e06b9fb0a87d9797e80561296fe66fd7eb7cfcf8

[Russell Taylor]

Re #6738. Only create listener if the alg doesn't already 'have' one.

Changeset: 4cfce5894370aae6f93b7c1ccb145847dae0247a

[Russell Taylor]

Re #6738. Enable use of multiple FileEventDataListeners at same time.

Changeset: 4a6b15fa704c77479409484ad055a1aa5ceb7f7b

[Russell Taylor]

Re #6738. Documentation correction that didn't merit its own ticket.

Changeset: e06b9fb0a87d9797e80561296fe66fd7eb7cfcf8

[Russell Taylor]

Re #6738. Only create listener if the alg doesn't already 'have' one.

Changeset: 4cfce5894370aae6f93b7c1ccb145847dae0247a

[Russell Taylor]

Re #6738. Enable use of multiple FileEventDataListeners at same time.

Changeset: 4a6b15fa704c77479409484ad055a1aa5ceb7f7b

[Russell Taylor]

Re #6738. Documentation correction that didn't merit its own ticket.

Changeset: e06b9fb0a87d9797e80561296fe66fd7eb7cfcf8

[Stuart Campbell]

This ticket has been transferred to github issue ​7584