-
Notifications
You must be signed in to change notification settings - Fork 4
/
app_compart.go
163 lines (132 loc) · 4.5 KB
/
app_compart.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
package insconveyor
import (
"context"
"github.com/insolar/assured-ledger/ledger-core/appctl/beat"
"github.com/insolar/assured-ledger/ledger-core/conveyor"
"github.com/insolar/assured-ledger/ledger-core/conveyor/managed"
"github.com/insolar/assured-ledger/ledger-core/instrumentation/insapp"
"github.com/insolar/assured-ledger/ledger-core/instrumentation/inslogger"
"github.com/insolar/assured-ledger/ledger-core/vanilla/injector"
"github.com/insolar/assured-ledger/ledger-core/vanilla/throw"
)
type ComponentSetupFunc = func(context.Context, injector.DependencyInjector, managed.RegisterComponentFunc)
func NewAppCompartment(name string, appDeps injector.DependencyRegistry, setupFn ConfigReviserFunc) *AppCompartment {
switch {
case name == "":
panic(throw.IllegalValue())
case appDeps == nil:
panic(throw.IllegalValue())
}
return &AppCompartment{name: name, appDeps: appDeps, setupFn: setupFn}
}
// AppCompartmentSetup is a setup of an app compartment.
type AppCompartmentSetup struct {
// ConveyorConfig provides settings for conveyor.
ConveyorConfig conveyor.PulseConveyorConfig
// EventFactoryFn provides event factory for conveyor.
EventFactoryFn conveyor.PulseEventFactoryFunc
// Components will be added with conveyor.PulseConveyor.AddManagedComponent().
Components []managed.Component
// Dependencies will be added as dependencies to conveyor.PulseConveyor.
Dependencies *injector.DynamicContainer
}
// AddComponent is a convenience method to add to the Components field.
func (p *AppCompartmentSetup) AddComponent(c managed.Component) {
p.Components = append(p.Components, c)
}
func (p *AppCompartmentSetup) Injector() injector.DependencyInjector {
return injector.NewDependencyInjector(struct {}{}, p.Dependencies, nil)
}
// ConfigReviserFunc enables AppCompartmentSetup to be revised before creation of an app compartment.
type ConfigReviserFunc = func(context.Context, injector.DependencyInjector, AppCompartmentSetup) AppCompartmentSetup
var _ insapp.AppComponent = &AppCompartment{}
type AppCompartment struct {
// set by construction
name string
appDeps injector.DependencyRegistry
setupFn ConfigReviserFunc
imposeFn ImposerFunc
// dependencies, resolved by Init
ctx context.Context
flowDispatcher beat.Dispatcher
conveyor *conveyor.PulseConveyor
conveyorWorker ConveyorWorker
}
// SetImposer sets a handler that can alternate Init() behavior. For tests ONLY.
func (p *AppCompartment) SetImposer(fn ImposerFunc) {
if p.conveyor != nil {
panic(throw.IllegalState())
}
p.imposeFn = fn
}
func (p *AppCompartment) Init(ctx context.Context) error {
ctx, _ = inslogger.WithField(ctx, "compartment", p.name)
p.ctx = ctx
appCfg := AppCompartmentSetup{
ConveyorConfig: DefaultConfig(),
Dependencies: injector.NewDynamicContainer(nil),
}
inject := injector.NewDependencyInjector(struct{}{}, p.appDeps, nil)
p.appDeps = nil
overrides := ConfigOverrides{}
_ = inject.Inject(&overrides.MachineLogger)
ApplyConfigOverrides(&appCfg.ConveyorConfig, overrides)
if p.setupFn != nil {
appCfg = p.setupFn(ctx, inject, appCfg)
}
p.setupFn = nil
var interceptFn ComponentInterceptFunc
var cycleFn conveyor.PulseConveyorCycleFunc
if p.imposeFn != nil {
params := ImposedParams{
InitContext: ctx,
AppInject: inject,
CompartmentSetup: appCfg,
}
p.imposeFn(¶ms)
p.imposeFn = nil
appCfg = params.CompartmentSetup
interceptFn = params.ComponentInterceptFn
cycleFn = params.ConveyorCycleFn
}
p.conveyor = conveyor.NewPulseConveyor(ctx,
appCfg.ConveyorConfig,
appCfg.EventFactoryFn,
appCfg.Dependencies.CopyAsStatic().AsRegistry(), // can handle nil
)
var addFn managed.RegisterComponentFunc
if interceptFn != nil {
addFn = func(c managed.Component) {
if c = interceptFn(c); c != nil {
p.conveyor.AddManagedComponent(c)
}
}
} else {
addFn = p.conveyor.AddManagedComponent
}
for _, c := range appCfg.Components {
if c != nil {
addFn(c)
}
}
p.conveyorWorker = NewConveyorWorker(cycleFn)
p.flowDispatcher = NewConveyorDispatcher(ctx, p.conveyor)
return nil
}
func (p *AppCompartment) Start(context.Context) error {
p.conveyorWorker.AttachTo(p.conveyor)
return nil
}
func (p *AppCompartment) Stop(context.Context) error {
p.conveyorWorker.Stop()
return nil
}
func (p *AppCompartment) AppDependencies() injector.DependencyRegistry {
return p.appDeps
}
func (p *AppCompartment) Conveyor() *conveyor.PulseConveyor {
return p.conveyor
}
func (p *AppCompartment) GetBeatDispatcher() beat.Dispatcher {
return p.flowDispatcher
}