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
|
package clients
import (
"errors"
"runtime"
"github.com/mimecast/dtail/internal/clients/handlers"
"github.com/mimecast/dtail/internal/config"
"github.com/mimecast/dtail/internal/io/dlog"
"github.com/mimecast/dtail/internal/omode"
)
// CatClient is a client for returning a whole file from the beginning to the end.
type CatClient struct {
baseClient
}
// NewCatClient returns a new cat client.
func NewCatClient(args config.Args) (*CatClient, error) {
if args.RegexStr != "" {
return nil, errors.New("Can't use regex with 'cat' operating mode")
}
args.Mode = omode.CatClient
c := CatClient{
baseClient: baseClient{
Args: args,
throttleCh: make(chan struct{}, args.ConnectionsPerCPU*runtime.NumCPU()),
retry: false,
runtime: newClientRuntimeBoundary(config.CurrentRuntime()),
},
}
c.init()
c.makeConnections(c)
return &c, nil
}
func (c CatClient) makeHandler(server string) handlers.Handler {
return handlers.NewClientHandler(server)
}
func (c CatClient) makeSessionSpec() (SessionSpec, error) {
return NewSessionSpec(c.Args), nil
}
func (c CatClient) makeCommands() (commands []string) {
sessionSpec, err := c.makeSessionSpec()
if err != nil {
dlog.Client.FatalPanic("unable to build cat session spec", err)
}
commands, err = sessionSpec.Commands()
if err != nil {
dlog.Client.FatalPanic("unable to build cat commands from session spec", err)
}
return commands
}
|
