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fake_config.go
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fake_config.go
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// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package yarpctest
import (
"go.uber.org/yarpc/api/peer"
"go.uber.org/yarpc/api/transport"
peerbind "go.uber.org/yarpc/peer"
"go.uber.org/yarpc/peer/hostport"
"go.uber.org/yarpc/yarpcconfig"
)
// FakeTransportConfig configures the FakeTransport.
type FakeTransportConfig struct {
Nop string `config:"nop,interpolate"`
}
func buildFakeTransport(c *FakeTransportConfig, kit *yarpcconfig.Kit) (transport.Transport, error) {
return NewFakeTransport(NopTransportOption(c.Nop)), nil
}
// FakeOutboundConfig configures the FakeOutbound.
type FakeOutboundConfig struct {
yarpcconfig.PeerChooser
Nop string `config:"nop,interpolate"`
}
func buildFakeUnaryOutbound(c *FakeOutboundConfig, t transport.Transport, kit *yarpcconfig.Kit) (transport.UnaryOutbound, error) {
return buildFakeOutbound(c, t, kit)
}
func buildFakeOnewayOutbound(c *FakeOutboundConfig, t transport.Transport, kit *yarpcconfig.Kit) (transport.OnewayOutbound, error) {
return buildFakeOutbound(c, t, kit)
}
func buildFakeStreamOutbound(c *FakeOutboundConfig, t transport.Transport, kit *yarpcconfig.Kit) (transport.StreamOutbound, error) {
return buildFakeOutbound(c, t, kit)
}
func buildFakeOutbound(c *FakeOutboundConfig, t transport.Transport, kit *yarpcconfig.Kit) (*FakeOutbound, error) {
x := t.(*FakeTransport)
chooser, err := c.BuildPeerChooser(x, hostport.Identify, kit)
if err != nil {
return nil, err
}
return x.NewOutbound(chooser, NopOutboundOption(c.Nop)), nil
}
// FakeTransportSpec returns a configurator spec for the fake-transport
// transport type, suitable for passing to Configurator.MustRegisterTransport.
func FakeTransportSpec() yarpcconfig.TransportSpec {
return yarpcconfig.TransportSpec{
Name: "fake-transport",
BuildTransport: buildFakeTransport,
BuildUnaryOutbound: buildFakeUnaryOutbound,
BuildOnewayOutbound: buildFakeOnewayOutbound,
BuildStreamOutbound: buildFakeStreamOutbound,
PeerChooserPresets: []yarpcconfig.PeerChooserPreset{
FakePeerChooserPreset(),
},
}
}
// FakePeerChooserConfig configures the FakePeerChooser.
type FakePeerChooserConfig struct {
Nop string `config:"nop,interpolate"`
}
func buildFakePeerChooser(c *FakePeerChooserConfig, t peer.Transport, kit *yarpcconfig.Kit) (peer.Chooser, error) {
return NewFakePeerChooser(ChooserNop(c.Nop)), nil
}
// FakePeerChooserSpec returns a configurator spec for the fake-chooser FakePeerChooser
// peer selection strategy, suitable for passing to
// Configurator.MustRegisterPeerChooser.
func FakePeerChooserSpec() yarpcconfig.PeerChooserSpec {
return yarpcconfig.PeerChooserSpec{
Name: "fake-chooser",
BuildPeerChooser: buildFakePeerChooser,
}
}
// FakePeerListConfig configures the FakePeerList.
type FakePeerListConfig struct {
Nop string `config:"nop,interpolate"`
}
func buildFakePeerList(c *FakePeerListConfig, t peer.Transport, kit *yarpcconfig.Kit) (peer.ChooserList, error) {
return NewFakePeerList(ListNop(c.Nop)), nil
}
// FakePeerListSpec returns a configurator spec for the fake-list FakePeerList
// peer selection strategy, suitable for passing to
// Configurator.MustRegisterPeerList.
func FakePeerListSpec() yarpcconfig.PeerListSpec {
return yarpcconfig.PeerListSpec{
Name: "fake-list",
BuildPeerList: buildFakePeerList,
}
}
// FakePeerListUpdaterConfig configures a fake-updater FakePeerListUpdater.
// It has a fake "watch" property that adds the Watch option for
// NewFakePeerListUpdater when you build a peer list with this config.
type FakePeerListUpdaterConfig struct {
FakeUpdater string `config:"fake-updater"`
Nop string `config:"nop,interpolate"`
Watch bool `config:"watch"`
}
func buildFakePeerListUpdater(c *FakePeerListUpdaterConfig, kit *yarpcconfig.Kit) (peer.Binder, error) {
var opts []FakePeerListUpdaterOption
if c.Watch {
opts = append(opts, Watch)
}
if c.Nop != "" {
opts = append(opts, UpdaterNop(c.Nop))
}
return func(pl peer.List) transport.Lifecycle {
return NewFakePeerListUpdater(opts...)
}, nil
}
// FakePeerListUpdaterSpec returns a configurator spec for the fake-updater
// FakePeerListUpdater type, suitable for passing to Configurator.MustRegisterPeerListUpdaterSpec.
func FakePeerListUpdaterSpec() yarpcconfig.PeerListUpdaterSpec {
return yarpcconfig.PeerListUpdaterSpec{
Name: "fake-updater",
BuildPeerListUpdater: buildFakePeerListUpdater,
}
}
// NewFakeConfigurator returns a configurator with fake-transport,
// fake-peer-list, and fake-peer-list-updater specs already registered,
// suitable for testing the configurator.
func NewFakeConfigurator(opts ...yarpcconfig.Option) *yarpcconfig.Configurator {
configurator := yarpcconfig.New(opts...)
configurator.MustRegisterTransport(FakeTransportSpec())
configurator.MustRegisterPeerChooser(FakePeerChooserSpec())
configurator.MustRegisterPeerList(FakePeerListSpec())
configurator.MustRegisterPeerListUpdater(FakePeerListUpdaterSpec())
return configurator
}
// FakePeerChooserPreset is a PeerChooserPreset which builds a FakePeerList buind to
// a FakePeerListUpdater.
func FakePeerChooserPreset() yarpcconfig.PeerChooserPreset {
return yarpcconfig.PeerChooserPreset{
Name: "fake-preset",
BuildPeerChooser: func(peer.Transport, *yarpcconfig.Kit) (peer.Chooser, error) {
return peerbind.Bind(
NewFakePeerList(), func(peer.List) transport.Lifecycle {
return NewFakePeerListUpdater()
}), nil
},
}
}