-
Notifications
You must be signed in to change notification settings - Fork 453
/
viper_config.go
214 lines (197 loc) · 11 KB
/
viper_config.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
// Copyright (c) TFG Co. All Rights Reserved.
//
// 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.
package config
import (
"reflect"
"strings"
"github.com/mitchellh/mapstructure"
"github.com/spf13/viper"
)
// Config is a wrapper around a viper config
type Config struct {
viper.Viper
}
// NewConfig creates a new config with a given viper config if given
func NewConfig(cfgs ...*viper.Viper) *Config {
var cfg *viper.Viper
if len(cfgs) > 0 {
cfg = cfgs[0]
} else {
cfg = viper.New()
}
cfg.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
cfg.AutomaticEnv()
c := &Config{*cfg}
c.fillDefaultValues()
return c
}
func (c *Config) fillDefaultValues() {
pitayaConfig := NewDefaultPitayaConfig()
defaultsMap := map[string]interface{}{
"pitaya.serializertype": pitayaConfig.SerializerType,
"pitaya.buffer.agent.messages": pitayaConfig.Buffer.Agent.Messages,
// the max buffer size that nats will accept, if this buffer overflows, messages will begin to be dropped
"pitaya.buffer.handler.localprocess": pitayaConfig.Buffer.Handler.LocalProcess,
"pitaya.buffer.handler.remoteprocess": pitayaConfig.Buffer.Handler.RemoteProcess,
"pitaya.cluster.info.region": pitayaConfig.Cluster.Info.Region,
"pitaya.cluster.rpc.client.grpc.dialtimeout": pitayaConfig.Cluster.RPC.Client.Grpc.DialTimeout,
"pitaya.cluster.rpc.client.grpc.requesttimeout": pitayaConfig.Cluster.RPC.Client.Grpc.RequestTimeout,
"pitaya.cluster.rpc.client.grpc.lazyconnection": pitayaConfig.Cluster.RPC.Client.Grpc.LazyConnection,
"pitaya.cluster.rpc.client.nats.connect": pitayaConfig.Cluster.RPC.Client.Nats.Connect,
"pitaya.cluster.rpc.client.nats.connectiontimeout": pitayaConfig.Cluster.RPC.Client.Nats.ConnectionTimeout,
"pitaya.cluster.rpc.client.nats.maxreconnectionretries": pitayaConfig.Cluster.RPC.Client.Nats.MaxReconnectionRetries,
"pitaya.cluster.rpc.client.nats.requesttimeout": pitayaConfig.Cluster.RPC.Client.Nats.RequestTimeout,
"pitaya.cluster.rpc.server.grpc.port": pitayaConfig.Cluster.RPC.Server.Grpc.Port,
"pitaya.cluster.rpc.server.nats.connect": pitayaConfig.Cluster.RPC.Server.Nats.Connect,
"pitaya.cluster.rpc.server.nats.connectiontimeout": pitayaConfig.Cluster.RPC.Server.Nats.ConnectionTimeout,
"pitaya.cluster.rpc.server.nats.maxreconnectionretries": pitayaConfig.Cluster.RPC.Server.Nats.MaxReconnectionRetries,
"pitaya.cluster.rpc.server.nats.services": pitayaConfig.Cluster.RPC.Server.Nats.Services,
"pitaya.cluster.rpc.server.nats.buffer.messages": pitayaConfig.Cluster.RPC.Server.Nats.Buffer.Messages,
"pitaya.cluster.rpc.server.nats.buffer.push": pitayaConfig.Cluster.RPC.Server.Nats.Buffer.Push,
"pitaya.cluster.sd.etcd.dialtimeout": pitayaConfig.Cluster.SD.Etcd.DialTimeout,
"pitaya.cluster.sd.etcd.endpoints": pitayaConfig.Cluster.SD.Etcd.Endpoints,
"pitaya.cluster.sd.etcd.prefix": pitayaConfig.Cluster.SD.Etcd.Prefix,
"pitaya.cluster.sd.etcd.grantlease.maxretries": pitayaConfig.Cluster.SD.Etcd.GrantLease.MaxRetries,
"pitaya.cluster.sd.etcd.grantlease.retryinterval": pitayaConfig.Cluster.SD.Etcd.GrantLease.RetryInterval,
"pitaya.cluster.sd.etcd.grantlease.timeout": pitayaConfig.Cluster.SD.Etcd.GrantLease.Timeout,
"pitaya.cluster.sd.etcd.heartbeat.log": pitayaConfig.Cluster.SD.Etcd.Heartbeat.Log,
"pitaya.cluster.sd.etcd.heartbeat.ttl": pitayaConfig.Cluster.SD.Etcd.Heartbeat.TTL,
"pitaya.cluster.sd.etcd.revoke.timeout": pitayaConfig.Cluster.SD.Etcd.Revoke.Timeout,
"pitaya.cluster.sd.etcd.syncservers.interval": pitayaConfig.Cluster.SD.Etcd.SyncServers.Interval,
"pitaya.cluster.sd.etcd.syncservers.parallelism": pitayaConfig.Cluster.SD.Etcd.SyncServers.Parallelism,
"pitaya.cluster.sd.etcd.shutdown.delay": pitayaConfig.Cluster.SD.Etcd.Shutdown.Delay,
"pitaya.cluster.sd.etcd.servertypeblacklist": pitayaConfig.Cluster.SD.Etcd.ServerTypesBlacklist,
// the sum of this config among all the frontend servers should always be less than
// the sum of pitaya.buffer.cluster.rpc.server.nats.messages, for covering the worst case scenario
// a single backend server should have the config pitaya.buffer.cluster.rpc.server.nats.messages bigger
// than the sum of the config pitaya.concurrency.handler.dispatch among all frontend servers
"pitaya.acceptor.proxyprotocol": pitayaConfig.Acceptor.ProxyProtocol,
"pitaya.concurrency.handler.dispatch": pitayaConfig.Concurrency.Handler.Dispatch,
"pitaya.defaultpipelines.structvalidation.enabled": pitayaConfig.DefaultPipelines.StructValidation.Enabled,
"pitaya.groups.etcd.dialtimeout": pitayaConfig.Groups.Etcd.DialTimeout,
"pitaya.groups.etcd.endpoints": pitayaConfig.Groups.Etcd.Endpoints,
"pitaya.groups.etcd.prefix": pitayaConfig.Groups.Etcd.Prefix,
"pitaya.groups.etcd.transactiontimeout": pitayaConfig.Groups.Etcd.TransactionTimeout,
"pitaya.groups.memory.tickduration": pitayaConfig.Groups.Memory.TickDuration,
"pitaya.handler.messages.compression": pitayaConfig.Handler.Messages.Compression,
"pitaya.heartbeat.interval": pitayaConfig.Heartbeat.Interval,
"pitaya.metrics.additionalLabels": pitayaConfig.Metrics.AdditionalLabels,
"pitaya.metrics.constLabels": pitayaConfig.Metrics.ConstLabels,
"pitaya.metrics.custom": pitayaConfig.Metrics.Custom,
"pitaya.metrics.period": pitayaConfig.Metrics.Period,
"pitaya.metrics.prometheus.enabled": pitayaConfig.Metrics.Prometheus.Enabled,
"pitaya.metrics.prometheus.port": pitayaConfig.Metrics.Prometheus.Port,
"pitaya.metrics.statsd.enabled": pitayaConfig.Metrics.Statsd.Enabled,
"pitaya.metrics.statsd.host": pitayaConfig.Metrics.Statsd.Host,
"pitaya.metrics.statsd.prefix": pitayaConfig.Metrics.Statsd.Prefix,
"pitaya.metrics.statsd.rate": pitayaConfig.Metrics.Statsd.Rate,
"pitaya.modules.bindingstorage.etcd.dialtimeout": pitayaConfig.Modules.BindingStorage.Etcd.DialTimeout,
"pitaya.modules.bindingstorage.etcd.endpoints": pitayaConfig.Modules.BindingStorage.Etcd.Endpoints,
"pitaya.modules.bindingstorage.etcd.leasettl": pitayaConfig.Modules.BindingStorage.Etcd.LeaseTTL,
"pitaya.modules.bindingstorage.etcd.prefix": pitayaConfig.Modules.BindingStorage.Etcd.Prefix,
"pitaya.conn.ratelimiting.limit": pitayaConfig.Conn.RateLimiting.Limit,
"pitaya.conn.ratelimiting.interval": pitayaConfig.Conn.RateLimiting.Interval,
"pitaya.conn.ratelimiting.forcedisable": pitayaConfig.Conn.RateLimiting.ForceDisable,
"pitaya.session.unique": pitayaConfig.Session.Unique,
"pitaya.session.drain.enabled": pitayaConfig.Session.Drain.Enabled,
"pitaya.session.drain.timeout": pitayaConfig.Session.Drain.Timeout,
"pitaya.session.drain.period": pitayaConfig.Session.Drain.Period,
"pitaya.worker.concurrency": pitayaConfig.Worker.Concurrency,
"pitaya.worker.redis.pool": pitayaConfig.Worker.Redis.Pool,
"pitaya.worker.redis.url": pitayaConfig.Worker.Redis.ServerURL,
"pitaya.worker.retry.enabled": pitayaConfig.Worker.Retry.Enabled,
"pitaya.worker.retry.exponential": pitayaConfig.Worker.Retry.Exponential,
"pitaya.worker.retry.max": pitayaConfig.Worker.Retry.Max,
"pitaya.worker.retry.maxDelay": pitayaConfig.Worker.Retry.MaxDelay,
"pitaya.worker.retry.maxRandom": pitayaConfig.Worker.Retry.MaxRandom,
"pitaya.worker.retry.minDelay": pitayaConfig.Worker.Retry.MinDelay,
}
for param := range defaultsMap {
val := c.Get(param)
if val == nil {
c.SetDefault(param, defaultsMap[param])
} else {
c.SetDefault(param, val)
c.Set(param, val)
}
}
}
// UnmarshalKey unmarshals key into v
func (c *Config) UnmarshalKey(key string, rawVal interface{}) error {
key = strings.ToLower(key)
delimiter := "."
prefix := key + delimiter
i := c.Get(key)
if i == nil {
return nil
}
if isStringMapInterface(i) {
val := i.(map[string]interface{})
keys := c.AllKeys()
for _, k := range keys {
if !strings.HasPrefix(k, prefix) {
continue
}
mk := strings.TrimPrefix(k, prefix)
mk = strings.Split(mk, delimiter)[0]
if _, exists := val[mk]; exists {
continue
}
mv := c.Get(key + delimiter + mk)
if mv == nil {
continue
}
val[mk] = mv
}
i = val
}
return decode(i, defaultDecoderConfig(rawVal))
}
func isStringMapInterface(val interface{}) bool {
vt := reflect.TypeOf(val)
return vt.Kind() == reflect.Map &&
vt.Key().Kind() == reflect.String &&
vt.Elem().Kind() == reflect.Interface
}
// A wrapper around mapstructure.Decode that mimics the WeakDecode functionality
func decode(input interface{}, config *mapstructure.DecoderConfig) error {
decoder, err := mapstructure.NewDecoder(config)
if err != nil {
return err
}
return decoder.Decode(input)
}
// defaultDecoderConfig returns default mapstructure.DecoderConfig with support
// of time.Duration values & string slices
func defaultDecoderConfig(output interface{}, opts ...viper.DecoderConfigOption) *mapstructure.DecoderConfig {
c := &mapstructure.DecoderConfig{
Metadata: nil,
Result: output,
WeaklyTypedInput: true,
DecodeHook: mapstructure.ComposeDecodeHookFunc(
mapstructure.StringToTimeDurationHookFunc(),
mapstructure.StringToSliceHookFunc(","),
),
}
for _, opt := range opts {
opt(c)
}
return c
}