/
client.go
185 lines (164 loc) · 5.33 KB
/
client.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
package gxyrpc
import (
"context"
"fmt"
"io"
"net"
"github.com/smallnest/rpcx/client"
"github.com/zylikedream/galaxy/core/gxyconfig"
"github.com/zylikedream/galaxy/core/gxyrpc/client/discovery"
)
type RpcClient struct {
conf *clientConfig
defaultClient *client.OneClient
serviceClients map[string]client.XClient
}
type clientConfig struct {
Default serviceConfig `toml:"default"`
Services []serviceConfig `toml:"services"`
}
type serviceConfig struct {
Service string `toml:"service"`
FailMode string `toml:"fail_mode"`
SelectMode string `toml:"select_mode"`
Discovery string `toml:"discovery"`
}
func parseFailMode(mode string) client.FailMode {
switch mode {
case "fail_over":
return client.Failover
case "fail_fast":
return client.Failfast
case "fail_try":
return client.Failtry
case "fail_backup":
return client.Failbackup
}
return -1
}
func parseSelectMode(mode string) client.SelectMode {
switch mode {
case "random_select":
return client.RandomSelect
case "roundrobin":
return client.RoundRobin
case "weighted_roundrobin":
return client.WeightedRoundRobin
case "weighted_icmp":
return client.WeightedICMP
case "consthash":
return client.ConsistentHash
case "closest":
return client.Closest
case "custom":
return client.SelectByUser
}
return -1
}
func NewGrpcClient(configFile string) (*RpcClient, error) {
conf := &clientConfig{}
configure := gxyconfig.New(configFile)
if err := configure.UnmarshalKey("gxyrpc_client", conf); err != nil {
return nil, err
}
gxyrpc := &RpcClient{
conf: conf,
serviceClients: make(map[string]client.XClient),
}
defaultClient, err := newDefaultServiceClient(&conf.Default, configure)
if err != nil {
return nil, err
}
gxyrpc.defaultClient = defaultClient
for _, serviceConf := range conf.Services {
cli, err := newServiceClient(&serviceConf, configure)
if err != nil {
return nil, err
}
gxyrpc.serviceClients[serviceConf.Service] = cli
}
return gxyrpc, nil
}
func newDefaultServiceClient(sc *serviceConfig, c *gxyconfig.Configuration) (*client.OneClient, error) {
d, err := discovery.NewDisvoery(sc.Discovery, c)
if err != nil {
return nil, err
}
failMode := parseFailMode(sc.FailMode)
if failMode < 0 {
return nil, fmt.Errorf("unkown fail mode:%s", sc.FailMode)
}
selectMode := parseSelectMode(sc.SelectMode)
if selectMode < 0 {
return nil, fmt.Errorf("unkonw select mode:%s", sc.SelectMode)
}
return client.NewOneClient(failMode, selectMode, d.GetDiscovery(), client.DefaultOption), nil
}
func newServiceClient(sc *serviceConfig, c *gxyconfig.Configuration) (client.XClient, error) {
d, err := discovery.NewDisvoery(sc.Discovery, c)
if err != nil {
return nil, err
}
failMode := parseFailMode(sc.FailMode)
if failMode < 0 {
return nil, fmt.Errorf("unkown fail mode:%s", sc.FailMode)
}
selectMode := parseSelectMode(sc.SelectMode)
if selectMode < 0 {
return nil, fmt.Errorf("unkonw select mode:%s", sc.SelectMode)
}
return client.NewXClient(sc.Service, failMode, selectMode, d.GetDiscovery(), client.DefaultOption), nil
}
func (g *RpcClient) Go(ctx context.Context, servicePath string, serviceMethod string, args interface{}, reply interface{}, done chan *client.Call) (*client.Call, error) {
cli, ok := g.serviceClients[servicePath]
if ok {
return cli.Go(ctx, serviceMethod, args, reply, done)
}
return g.defaultClient.Go(ctx, servicePath, serviceMethod, args, reply, done)
}
func (g *RpcClient) Call(ctx context.Context, servicePath string, serviceMethod string, args interface{}, reply interface{}) error {
cli, ok := g.serviceClients[servicePath]
if ok {
return cli.Call(ctx, serviceMethod, args, reply)
}
return g.defaultClient.Call(ctx, servicePath, serviceMethod, args, reply)
}
func (g *RpcClient) Fork(ctx context.Context, servicePath string, serviceMethod string, args interface{}, reply interface{}) error {
cli, ok := g.serviceClients[servicePath]
if ok {
return cli.Fork(ctx, serviceMethod, args, reply)
}
return g.defaultClient.Fork(ctx, servicePath, serviceMethod, args, reply)
}
func (g *RpcClient) Broadcast(ctx context.Context, servicePath string, serviceMethod string, args interface{}, reply interface{}) error {
cli, ok := g.serviceClients[servicePath]
if ok {
return cli.Broadcast(ctx, serviceMethod, args, reply)
}
return g.defaultClient.Broadcast(ctx, servicePath, serviceMethod, args, reply)
}
func (g *RpcClient) SendFile(ctx context.Context, fileName string, rateInBytesPerSecond int64, meta map[string]string) error {
return g.defaultClient.SendFile(ctx, fileName, rateInBytesPerSecond, meta) // file的service是固定的 直接使用defaultclient即可
}
func (g *RpcClient) DownloadFile(ctx context.Context, requestFileName string, saveTo io.Writer, meta map[string]string) error {
return g.defaultClient.DownloadFile(ctx, requestFileName, saveTo, meta) // file的service是固定的 直接使用defaultclient即可
}
func (g *RpcClient) Stream(ctx context.Context, meta map[string]string) (net.Conn, error) {
return g.defaultClient.Stream(ctx, meta)
}
func (g *RpcClient) Close() error {
var errs []error
if err := g.defaultClient.Close(); err != nil {
errs = append(errs, err)
}
for _, serviceCli := range g.serviceClients {
if err := serviceCli.Close(); err != nil {
errs = append(errs, err)
}
}
if len(errs) > 0 {
// todo 整合错误信息
return errs[0]
}
return nil
}