-
Notifications
You must be signed in to change notification settings - Fork 787
/
producer_manager.go
119 lines (106 loc) · 3.92 KB
/
producer_manager.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
// The MIT License (MIT)
// Copyright (c) 2017-2020 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.
//go:generate mockgen -package $GOPACKAGE -source $GOFILE -destination producer_manager_mock.go -self_package github.com/uber/cadence/service/frontend/api
package api
import (
"fmt"
"time"
"github.com/uber/cadence/common/asyncworkflow/queue"
"github.com/uber/cadence/common/asyncworkflow/queue/provider"
"github.com/uber/cadence/common/cache"
"github.com/uber/cadence/common/log"
"github.com/uber/cadence/common/messaging"
"github.com/uber/cadence/common/metrics"
)
type (
// ProducerManager is used to create a producer for a domain.
// Producer is used for Async APIs such as StartWorkflowExecutionAsync
ProducerManager interface {
GetProducerByDomain(domain string) (messaging.Producer, error)
}
producerManagerImpl struct {
domainCache cache.DomainCache
provider queue.Provider
logger log.Logger
metricsClient metrics.Client
producerCache cache.Cache
}
)
func NewProducerManager(
domainCache cache.DomainCache,
provider queue.Provider,
logger log.Logger,
metricsClient metrics.Client,
) ProducerManager {
return &producerManagerImpl{
domainCache: domainCache,
provider: provider,
logger: logger,
metricsClient: metricsClient,
producerCache: cache.New(&cache.Options{
TTL: time.Minute * 5,
InitialCapacity: 5,
MaxCount: 100,
Pin: true,
}),
}
}
// GetProducerByDomain returns a producer for a domain
func (q *producerManagerImpl) GetProducerByDomain(
domain string,
) (messaging.Producer, error) {
domainEntry, err := q.domainCache.GetDomain(domain)
if err != nil {
return nil, err
}
if !domainEntry.GetConfig().AsyncWorkflowConfig.Enabled {
return nil, fmt.Errorf("async workflow is not enabled for domain %v", domain)
}
queueName := domainEntry.GetConfig().AsyncWorkflowConfig.PredefinedQueueName
var queue provider.Queue
if queueName != "" {
queue, err = q.provider.GetPredefinedQueue(queueName)
if err != nil {
return nil, err
}
} else {
queue, err = q.provider.GetQueue(domainEntry.GetConfig().AsyncWorkflowConfig.QueueType, domainEntry.GetConfig().AsyncWorkflowConfig.QueueConfig)
if err != nil {
return nil, err
}
}
queueID := queue.ID()
val := q.producerCache.Get(queueID)
if val != nil {
return val.(messaging.Producer), nil
}
producer, err := queue.CreateProducer(&provider.Params{Logger: q.logger, MetricsClient: q.metricsClient})
if err != nil {
return nil, err
}
// PutIfNotExist is thread safe, and will either return the value that was already in the cache or the value we just created
// another thread might have inserted a value between the Get and PutIfNotExist, but that is ok
// it should never return an error as we do not use Pin
val, err = q.producerCache.PutIfNotExist(queueID, producer)
if err != nil {
return nil, err
}
return val.(messaging.Producer), nil
}