Add findById method on DataPlaneSelectorService

[ndr-brt]

Feature Request

Currently DataPlaneSignalingFlowController is fetching all the dataplanes to find the one on which suspend or terminate the transfer. A findById will permit to avoid data waste, especially in environment where there are a lot of dataplanes.

Which Areas Would Be Affected?

data plane selector

Why Is the Feature Desired?

Are there any requirements?

Solution Proposal

If possible, provide a (brief!) solution proposal.

TODO:

• Add method on data plane selector controller
• embedded implementation
• remote implementation
• use the findBy method on DataPlaneSignalingFlowController