Remove topologymanager module

[sajith]

Issue is #79: this module is being moved to pce, in atlanticwave-sdx/pce#98.

[coveralls]

Coverage: 66.486% (-18.9%) from 85.412% when pulling e6584d8 on 98.remove-topology into f030997 on main.

[sajith]

The drop in coverage is due to honesty :-)

Previously reported coverage was measuring coverage of tests (see https://coveralls.io/builds/55212972), which is meaningless. With some changes in setup.cfg in this branch, now we're measuring actual test coverage of the library.

[YufengXin]

where does it (topologymanger) go?-:) is it ready to use in pre? thanks

[sajith]

where does it (topologymanger) go?-:) is it ready to use in pre? thanks

It was moved to pce, in atlanticwave-sdx/pce#96, and I'm making some more changes in atlanticwave-sdx/pce#98 (mainly error handling and some refactoring).

So sdx-controller will use sdx.pce.topology instead of sdx.datamodel.topologymanager, and that change is being done in atlanticwave-sdx/sdx-controller#119. I think these changes are pretty much close to ready, modulo bugs and some more possible refactoring, of course. But we can remove this code now from pce, because sdx-controller's main branch is set to use datamodel tagged 1.0.0a, so it will continue to work.

The reason for this set of changes is stated in atlanticwave-sdx/pce#95. Basically, some classes were added to represent connection requests and solutions in pce (instead of plain old arrays and dicts), and topology-related classes can share that code easily if we move them to pce.

[YufengXin]

Thanks. I asked because I need to add some code to take care of the vlan reservation for every path. They're mostly done in my own branch. I will find the right place to add.

[sajith]

Thanks. Should have made this change earlier on. Sorry about the hold up!