Extract BackendPool interface into three 3 separate interfaces #424
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/assign @freehan |
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bowei
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| @@ -0,0 +1,180 @@ | |||
| package backends | |||
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Fixed everywhere.
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All tests are now migrated over to new interfaces. Added a new test file called integration_test.go which contains some tests carried over from the original. Those are failing so need to figure out why. |
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Update: All tests pass. |
bowei
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pkg/backends/backends.go
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| // will dictate whether we search for an existing legacy health check. | ||
| hcLink, err := b.ensureHealthCheck(sp, hasLegacyHC) | ||
| if err != nil { | ||
| // Implements Pool. |
pkg/backends/backends.go
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| } | ||
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| // Delete deletes the Backend for the given port. | ||
| // Implements Pool. | ||
| func (b *Backends) Delete(name string) (err error) { |
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Can we use non-implicit err here?
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I wasn't able to get rid of it because of the defer.
pkg/backends/backends.go
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| if !oldBackends.Equal(newBackends) { | ||
| backendService.Backends = targetBackends | ||
| return b.cloud.UpdateBetaGlobalBackendService(backendService) | ||
| // Implements Pool. |
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GetLocalSnapshot implements Pool.
pkg/backends/backends.go
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| func (b *Backends) edgeHop(be *composite.BackendService, igLinks []string) error { | ||
| addIGs, err := getInstanceGroupsToAdd(be, igLinks) | ||
| // Implements Pool. | ||
| func (b *Backends) Get(name string, version meta.Version) (*composite.BackendService, error) { |
pkg/backends/backends.go
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| func (b *Backends) Status(name string) string { | ||
| backend, err := b.cloud.GetGlobalBackendService(name) | ||
| if err != nil || len(backend.Backends) == 0 { | ||
| // Implements Pool. |
pkg/backends/ig_linker.go
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| const maxRPS = 1 | ||
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| // InstanceGroupLinker handles linking backends to InstanceGroup's. | ||
| type InstanceGroupLinker struct { |
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Fixed it for this and others as well.
pkg/backends/ig_linker.go
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| } | ||
| } | ||
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| // Implements Link. |
pkg/backends/ig_linker.go
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| } | ||
| } | ||
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| // We first try to create the backend with balancingMode=RATE. If this + return addIGs |
pkg/backends/integration_test.go
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| @@ -0,0 +1,210 @@ | |||
| /* | |||
| Copyright 2015 The Kubernetes Authors. | |||
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This PR extracts the BackendPool interface into 3 separate interfaces:
This allows us to break the current BackendPool implementation up into more manageable chunks and each chunk is much more testable. Furthermore, some implementations, namely BackendPool and Syncer, can be easily reused.
/assign @bowei