/
cadence_factory.go
186 lines (158 loc) · 5.05 KB
/
cadence_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
package cadence
// github.com/bcpitutor/gosharedlibs/cadence
import (
"errors"
"github.com/opentracing/opentracing-go"
"github.com/uber-go/tally"
apiv1 "github.com/uber/cadence-idl/go/proto/api/v1"
"go.uber.org/cadence/.gen/go/cadence/workflowserviceclient"
"go.uber.org/cadence/client"
"go.uber.org/cadence/compatibility"
"go.uber.org/cadence/encoded"
"go.uber.org/cadence/workflow"
"go.uber.org/yarpc"
"go.uber.org/yarpc/transport/grpc"
"go.uber.org/zap"
)
const (
_cadenceClientName = "cadence-client"
_cadenceFrontendService = "cadence-frontend"
)
// WorkflowClientBuilder build client to cadence service
type WorkflowClientBuilder struct {
hostPort string
dispatcher *yarpc.Dispatcher
domain string
clientIdentity string
metricsScope tally.Scope
Logger *zap.Logger
ctxProps []workflow.ContextPropagator
dataConverter encoded.DataConverter
tracer opentracing.Tracer
}
// NewBuilder creates a new WorkflowClientBuilder
func NewBuilder(logger *zap.Logger) *WorkflowClientBuilder {
return &WorkflowClientBuilder{
Logger: logger,
}
}
// SetHostPort sets the hostport for the builder
func (b *WorkflowClientBuilder) SetHostPort(hostport string) *WorkflowClientBuilder {
b.hostPort = hostport
return b
}
// SetDomain sets the domain for the builder
func (b *WorkflowClientBuilder) SetDomain(domain string) *WorkflowClientBuilder {
b.domain = domain
return b
}
// SetClientIdentity sets the identity for the builder
func (b *WorkflowClientBuilder) SetClientIdentity(identity string) *WorkflowClientBuilder {
b.clientIdentity = identity
return b
}
// SetMetricsScope sets the metrics scope for the builder
func (b *WorkflowClientBuilder) SetMetricsScope(metricsScope tally.Scope) *WorkflowClientBuilder {
b.metricsScope = metricsScope
return b
}
// SetDispatcher sets the dispatcher for the builder
func (b *WorkflowClientBuilder) SetDispatcher(dispatcher *yarpc.Dispatcher) *WorkflowClientBuilder {
b.dispatcher = dispatcher
return b
}
// SetContextPropagators sets the context propagators for the builder
func (b *WorkflowClientBuilder) SetContextPropagators(ctxProps []workflow.ContextPropagator) *WorkflowClientBuilder {
b.ctxProps = ctxProps
return b
}
// SetDataConverter sets the data converter for the builder
func (b *WorkflowClientBuilder) SetDataConverter(dataConverter encoded.DataConverter) *WorkflowClientBuilder {
b.dataConverter = dataConverter
return b
}
// SetTracer sets the tracer for the builder
func (b *WorkflowClientBuilder) SetTracer(tracer opentracing.Tracer) *WorkflowClientBuilder {
b.tracer = tracer
return b
}
// BuildCadenceClient builds a client to cadence service
func (b *WorkflowClientBuilder) BuildCadenceClient() (client.Client, error) {
service, err := b.BuildServiceClient()
if err != nil {
return nil, err
}
return client.NewClient(
service,
b.domain,
&client.Options{
Identity: b.clientIdentity,
MetricsScope: b.metricsScope,
DataConverter: b.dataConverter,
ContextPropagators: b.ctxProps,
Tracer: b.tracer,
FeatureFlags: client.FeatureFlags{
WorkflowExecutionAlreadyCompletedErrorEnabled: true,
},
}), nil
}
// BuildCadenceDomainClient builds a domain client to cadence service
func (b *WorkflowClientBuilder) BuildCadenceDomainClient() (client.DomainClient, error) {
service, err := b.BuildServiceClient()
if err != nil {
return nil, err
}
return client.NewDomainClient(
service,
&client.Options{
Identity: b.clientIdentity,
MetricsScope: b.metricsScope,
ContextPropagators: b.ctxProps,
FeatureFlags: client.FeatureFlags{
WorkflowExecutionAlreadyCompletedErrorEnabled: true,
},
},
), nil
}
// BuildServiceClient builds a rpc service client to cadence service
func (b *WorkflowClientBuilder) BuildServiceClient() (workflowserviceclient.Interface, error) {
if err := b.build(); err != nil {
return nil, err
}
if b.dispatcher == nil {
b.Logger.Fatal("No RPC dispatcher provided to create a connection to Cadence Service")
}
clientConfig := b.dispatcher.ClientConfig(_cadenceFrontendService)
return compatibility.NewThrift2ProtoAdapter(
apiv1.NewDomainAPIYARPCClient(clientConfig),
apiv1.NewWorkflowAPIYARPCClient(clientConfig),
apiv1.NewWorkerAPIYARPCClient(clientConfig),
apiv1.NewVisibilityAPIYARPCClient(clientConfig),
), nil
}
func (b *WorkflowClientBuilder) build() error {
if b.dispatcher != nil {
return nil
}
if len(b.hostPort) == 0 {
return errors.New("HostPort is empty")
}
b.Logger.Debug("Creating RPC dispatcher outbound",
zap.String("ServiceName", _cadenceFrontendService),
zap.String("HostPort", b.hostPort))
b.dispatcher = yarpc.NewDispatcher(yarpc.Config{
Name: _cadenceClientName,
Outbounds: yarpc.Outbounds{
_cadenceFrontendService: {Unary: grpc.NewTransport().NewSingleOutbound(b.hostPort)},
},
})
if b.dispatcher != nil {
if err := b.dispatcher.Start(); err != nil {
b.Logger.Fatal("Failed to create outbound transport channel: %v", zap.Error(err))
}
}
return nil
}
func GetCadenceVersion() string {
return "test cadence"
}