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go-micro/runtime/runtime.go
2019-11-29 11:35:00 +00:00

90 lines
1.9 KiB
Go

// Package runtime is a service runtime manager
package runtime
import "time"
var (
// DefaultRuntime is default micro runtime
DefaultRuntime Runtime = NewRuntime()
// DefaultName is default runtime service name
DefaultName = "go.micro.runtime"
)
// Runtime is a service runtime manager
type Runtime interface {
// Init initializes runtime
Init(...Option) error
// Create registers a service
Create(*Service, ...CreateOption) error
// Read returns the service
Read(...ReadOption) ([]*Service, error)
// Update the service in place
Update(*Service) error
// Remove a service
Delete(*Service) error
// List the managed services
List() ([]*Service, error)
// Start starts the runtime
Start() error
// Stop shuts down the runtime
Stop() error
}
// Notifier is an update notifier
type Notifier interface {
// Notify publishes notification events
Notify() (<-chan Event, error)
// Close stops the notifier
Close() error
}
// EventType defines notification event
type EventType int
const (
// Create is emitted when a new build has been craeted
Create EventType = iota
// Update is emitted when a new update become available
Update
// Delete is emitted when a build has been deleted
Delete
)
// String returns human readable event type
func (t EventType) String() string {
switch t {
case Create:
return "create"
case Delete:
return "delete"
case Update:
return "update"
default:
return "unknown"
}
}
// Event is notification event
type Event struct {
// Type is event type
Type EventType
// Timestamp is event timestamp
Timestamp time.Time
// Service is the name of the service
Service string
// Version of the build
Version string
}
// Service is runtime service
type Service struct {
// Name of the service
Name string
// Version of the service
Version string
// url location of source
Source string
// Metadata stores metadata
Metadata map[string]string
}