-
Notifications
You must be signed in to change notification settings - Fork 23
/
component-factory.go
189 lines (181 loc) · 7.83 KB
/
component-factory.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
package controlplane
import (
"encoding/json"
"go.uber.org/fx"
policylangv1 "github.com/fluxninja/aperture/api/gen/proto/go/aperture/policy/language/v1"
"github.com/fluxninja/aperture/pkg/policies/controlplane/components"
"github.com/fluxninja/aperture/pkg/policies/controlplane/components/actuators/rate"
"github.com/fluxninja/aperture/pkg/policies/controlplane/components/controller"
"github.com/fluxninja/aperture/pkg/policies/controlplane/iface"
"github.com/fluxninja/aperture/pkg/policies/controlplane/runtime"
)
// componentFactoryModule for component factory run via the main app.
func componentFactoryModule() fx.Option {
return fx.Options(
components.PromQLModule(),
)
}
// componentFactoryModuleForPolicyApp for component factory run via the policy app. For singletons in the Policy scope.
func componentFactoryModuleForPolicyApp(circuitAPI runtime.CircuitAPI) fx.Option {
return fx.Options(
componentStackFactoryModuleForPolicyApp(circuitAPI),
components.PromQLModuleForPolicyApp(circuitAPI),
)
}
// NewComponentAndOptions creates component and its fx options.
func NewComponentAndOptions(
componentProto *policylangv1.Component,
componentIndex int,
policyReadAPI iface.Policy,
) (runtime.CompiledComponent, []runtime.CompiledComponent, fx.Option, error) {
// Factory parser to determine what kind of component to create
if gradientController := componentProto.GetGradientController(); gradientController != nil {
component, option, err := controller.NewGradientControllerAndOptions(gradientController, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(gradientController, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "Gradient",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if limiter := componentProto.GetRateLimiter(); limiter != nil {
component, option, err := rate.NewRateLimiterAndOptions(limiter, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(limiter, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "RateLimiter",
ComponentType: runtime.ComponentTypeSink,
}, nil, option, err
} else if ema := componentProto.GetEma(); ema != nil {
component, option, err := components.NewEMAAndOptions(ema, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(ema, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "EMA",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if arithmeticCombinator := componentProto.GetArithmeticCombinator(); arithmeticCombinator != nil {
component, option, err := components.NewArithmeticCombinatorAndOptions(arithmeticCombinator, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(arithmeticCombinator, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "ArithmeticCombinator",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if promQL := componentProto.GetPromql(); promQL != nil {
component, option, err := components.NewPromQLAndOptions(promQL, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(promQL, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "PromQL",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if constant := componentProto.GetConstant(); constant != nil {
component, option, err := components.NewConstantAndOptions(constant, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(constant, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "Constant",
ComponentType: runtime.ComponentTypeSource,
}, nil, option, err
} else if decider := componentProto.GetDecider(); decider != nil {
component, option, err := components.NewDeciderAndOptions(decider, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(decider, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "Decider",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if switcher := componentProto.GetSwitcher(); switcher != nil {
component, option, err := components.NewSwitcherAndOptions(switcher, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(switcher, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "Switcher",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if sqrt := componentProto.GetSqrt(); sqrt != nil {
component, option, err := components.NewSqrtAndOptions(sqrt, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(sqrt, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "Sqrt",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if max := componentProto.GetMax(); max != nil {
component, option, err := components.NewMaxAndOptions(max, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(max, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "Max",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if min := componentProto.GetMin(); min != nil {
component, option, err := components.NewMinAndOptions(min, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(min, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "Min",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if extrapolator := componentProto.GetExtrapolator(); extrapolator != nil {
component, option, err := components.NewExtrapolatorAndOptions(extrapolator, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(extrapolator, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "Extrapolator",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if firstValid := componentProto.GetFirstValid(); firstValid != nil {
component, option, err := components.NewFirstValidAndOptions(firstValid, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(firstValid, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "FirstValid",
ComponentType: runtime.ComponentTypeSignalProcessor,
}, nil, option, err
} else if sink := componentProto.GetSink(); sink != nil {
component, option, err := components.NewSinkAndOptions(sink, componentIndex, policyReadAPI)
mapStruct, err := encodeMapStructOnNilErr(sink, err)
return runtime.CompiledComponent{
Component: component,
MapStruct: mapStruct,
Name: "Sink",
ComponentType: runtime.ComponentTypeSink,
}, nil, option, err
} else {
// Try Component Stack Factory
return newComponentStackAndOptions(componentProto, componentIndex, policyReadAPI)
}
}
func encodeMapStructOnNilErr(comp any, err error) (map[string]any, error) {
if err != nil {
return nil, err
}
return encodeMapStruct(comp)
}
func encodeMapStruct(obj any) (map[string]any, error) {
// TODO: mapstruct functionality needs to be moved to a common package
var mapStruct map[string]interface{}
b, err := json.Marshal(obj)
if err != nil {
return nil, err
}
err = json.Unmarshal(b, &mapStruct)
if err != nil {
return nil, err
}
return mapStruct, nil
}