/
instance.go
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/
instance.go
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// Copyright 2016 IBM Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package store
import (
"fmt"
"time"
)
// Registered instance status related constants
const (
Starting = "STARTING"
Up = "UP"
OutOfService = "OUT_OF_SERVICE"
All = "ALL" // ALL is only a valid status for the query string param and not for the register
)
// ServiceInstance represents a runtime instance of a service.
type ServiceInstance struct {
ID string
ServiceName string
Endpoint *Endpoint
Status string
Metadata []byte
RegistrationTime time.Time
LastRenewal time.Time
TTL time.Duration
Tags []string
Extension map[string]interface{}
}
// String output the structure
func (si *ServiceInstance) String() string {
return fmt.Sprintf("id: %s, service_name: %s, endpoint: %s, status: %s, registrationTime: %v, lastRenewal: %v, ttl: %d, tags: %v",
si.ID, si.ServiceName, si.Endpoint, si.Status, si.RegistrationTime, si.LastRenewal, si.TTL, si.Tags)
}
// DeepClone creates a deep copy of the receiver
func (si *ServiceInstance) DeepClone() *ServiceInstance {
cloned := *si
cloned.Endpoint = si.Endpoint.DeepClone()
if si.Metadata == nil || len(si.Metadata) == 0 {
cloned.Metadata = nil
} else {
cloned.Metadata = make([]byte, len(si.Metadata))
copy(cloned.Metadata, si.Metadata)
}
if len(si.Extension) == 0 {
cloned.Extension = nil
} else {
cloned.Extension = make(map[string]interface{}, len(si.Extension))
for k, v := range si.Extension {
cloned.Extension[k] = v
}
}
return &cloned
}
// ServiceInstanceMap is a map of ServiceInstances keyed by instance id and service name
type ServiceInstanceMap map[DBKey]*ServiceInstance