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dialogstore.go
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dialogstore.go
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package sipengine
import (
"context"
"github.com/pkg/errors"
"sync"
"time"
)
type Dialog struct {
CallID string
From string
To string
Start time.Time
End time.Time
Active bool
//Metadata
Labels map[string][]string
Mux sync.Mutex
}
type DialogStore interface {
Exists(callID string) error
WriteDialog(d Dialog)
UpdateDialog(d Dialog)
DeleteDialog(callID string)
ExistsByLabel(label string) error
Details(callID string) Dialog
Dialogs(callID string) []Dialog
DialogsByLabel(label string) []Dialog
Cancel(callID string)
CancelByLabel(label string)
//Start and prep for processing. This is also how
//we would propagate certain error types up. IE
//Shutdown errors up the stack on too many failures
Boot() error
}
type InMemoryDialogStore struct {
//Used to inherit cancellation et all
//From upstream
Ctx context.Context
Dialogs []Dialog
Channels struct {
Write chan Dialog
ReadRequest chan string
ReadResponse chan string
Remove chan string
Cancel chan string
Error chan error
}
}
func (i *InMemoryDialogStore) Exists(callID string) error {
for _, v := range i.Dialogs {
if callID == v.CallID {
return nil
}
}
return errors.New("no matching dialog found")
}
func (i *InMemoryDialogStore) WriteDialog(d Dialog) {
i.Channels.Write <- d
}
func (i *InMemoryDialogStore) ExistsByLabel(callID string) error {
for _ , v := range i.Dialogs {
for _ , l := range v.Labels {
if len(l) > 0 {
return nil
}
}
}
return errors.New("no dialogs matched provided label")
}