-
Notifications
You must be signed in to change notification settings - Fork 5
/
exec-request.go
215 lines (200 loc) · 5.39 KB
/
exec-request.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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
package controller_exec
import (
"context"
"errors"
"sort"
"github.com/aperturerobotics/controllerbus/bus"
"github.com/aperturerobotics/controllerbus/controller/configset"
configset_json "github.com/aperturerobotics/controllerbus/controller/configset/json"
configset_proto "github.com/aperturerobotics/controllerbus/controller/configset/proto"
"github.com/aperturerobotics/controllerbus/directive"
)
// ExecControllerYAMLFromConfigSet converts a config set to a ExecControllerRequest w/ YAML.
func ExecControllerYAMLFromConfigSet(cs configset.ConfigSet) (*ExecControllerRequest, error) {
// encode to yaml
dat, err := configset_json.MarshalYAML(cs)
if err != nil {
return nil, err
}
return &ExecControllerRequest{
ConfigSetYaml: string(dat),
}, nil
}
// ExecControllerProtoFromConfigSet converts a config set to a ExecControllerRequest w/ proto.
func ExecControllerProtoFromConfigSet(cs configset.ConfigSet) (*ExecControllerRequest, error) {
// encode to proto
pcs, err := configset_proto.NewConfigSet(cs, false)
if err != nil {
return nil, err
}
return &ExecControllerRequest{
ConfigSet: pcs,
}, nil
}
// IsNil checks if the object is nil.
func (r *ExecControllerRequest) IsNil() bool {
return r == nil
}
// Execute executes the request to apply a config set.
// Cb should not hold ExecControllerResponse after returning.
func (r *ExecControllerRequest) Execute(
ctx context.Context,
cbus bus.Bus,
allowPartialSuccess bool,
cb func(*ExecControllerResponse) error,
) error {
var resp ExecControllerResponse
var err error
// callCb calls the callback.
callCb := func() error {
if cb != nil {
return cb(&resp)
}
return nil
}
var confSet configset.ConfigSet
rConfSet := r.GetConfigSet() // proto.Clone(r.GetConfigSet()).(*configset_proto.ConfigSet)
if rConfSet == nil && r.GetConfigSetYaml() == "" {
return errors.New("at least one config must be specified")
}
confsList := rConfSet.GetConfigs()
prevStates := make(map[string]ControllerStatus, len(confsList))
if !allowPartialSuccess && len(rConfSet.GetConfigs()) != 0 {
confSet, err = rConfSet.Resolve(ctx, cbus)
}
if err != nil {
return err
}
if confSet == nil {
confSet = make(configset.ConfigSet, len(confsList))
}
if confsList == nil {
confsList = make(map[string]*configset_proto.ControllerConfig)
}
confsYAML := r.GetConfigSetYaml()
if confsYAML != "" {
addedConfs, err := configset_json.UnmarshalYAML(
ctx,
cbus,
[]byte(confsYAML),
confSet,
r.GetConfigSetYamlOverwrite(),
)
if err != nil {
return err
}
sort.Strings(addedConfs)
}
niniterr := 0
var lastniniterr error
// TODO: sort and send sorted
for csID, conf := range confsList {
if csID == "" {
continue
}
if _, ok := confSet[csID]; !ok {
confSet[csID], err = conf.Resolve(ctx, cbus)
if err != nil {
resp.Id = csID
resp.Status = ControllerStatus_ControllerStatus_ERROR
resp.ErrorInfo = err.Error()
prevStates[csID] = resp.Status
if err := callCb(); err != nil {
return err
}
resp.Reset()
niniterr++
lastniniterr = err
delete(confSet, csID)
}
}
}
if niniterr == len(confsList) && len(confsList) != 0 {
if len(confsList) == 1 && lastniniterr != nil {
return lastniniterr
}
return ErrAllControllersFailed
}
resp.Reset()
// handle results of configset controller apply.
subCtx, subCtxCancel := context.WithCancel(ctx)
defer subCtxCancel()
addedCh := make(chan configset.ApplyConfigSetValue, 1)
removedCh := make(chan configset.ApplyConfigSetValue, 1)
_, dirRef, err := cbus.AddDirective(
configset.NewApplyConfigSet(confSet),
bus.NewCallbackHandler(
// value added
func(val directive.AttachedValue) {
csVal, csValOk := val.GetValue().(configset.ApplyConfigSetValue)
if !csValOk || csVal == nil || csVal.GetId() == "" {
return
}
select {
case <-subCtx.Done():
return
case addedCh <- csVal:
}
},
// value removed
func(val directive.AttachedValue) {
csVal, csValOk := val.GetValue().(configset.ApplyConfigSetValue)
if !csValOk || csVal == nil || csVal.GetId() == "" {
return
}
select {
case <-subCtx.Done():
return
case removedCh <- csVal:
}
},
subCtxCancel,
),
)
if err != nil {
return err
}
defer dirRef.Release()
for {
select {
case <-subCtx.Done():
return subCtx.Err()
case csv := <-addedCh:
csvID := csv.GetId()
csvErr := csv.GetError()
resp.Id = csvID
if csvErr != nil {
resp.Status = ControllerStatus_ControllerStatus_ERROR
resp.ErrorInfo = csvErr.Error()
} else if ctrl := csv.GetController(); ctrl != nil {
ctrlInfo := ctrl.GetControllerInfo()
resp.Status = ControllerStatus_ControllerStatus_RUNNING
resp.ControllerInfo = ctrlInfo
} else {
resp.Status = ControllerStatus_ControllerStatus_CONFIGURING
}
if prevStates[csvID] != resp.Status ||
resp.Status != ControllerStatus_ControllerStatus_CONFIGURING {
prevStates[csvID] = resp.Status
if err := callCb(); err != nil {
return err
}
}
resp.Reset()
case csv := <-removedCh:
// removed == value is no longer applicable.
csvID := csv.GetId()
resp.Status = ControllerStatus_ControllerStatus_CONFIGURING
if prevStates[csvID] == resp.Status {
resp.Status = ControllerStatus_ControllerStatus_UNKNOWN
break
}
resp.Id = csvID
prevStates[csvID] = resp.Status
if err := callCb(); err != nil {
return err
}
resp.Reset()
}
}
}