66 lines
1.5 KiB
Go
66 lines
1.5 KiB
Go
package etcd
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import (
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"encoding/json"
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"fmt"
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"github.com/fox/fox/log"
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"sync"
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)
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type resultT[T any] struct {
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Value T
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}
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type Registry[T INode] struct {
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*etcdRegistryImpl
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nodes *sync.Map
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}
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func NewRegistry[T INode](endpoints []string, username, password string) (*Registry[T], error) {
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var err error
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e := &Registry[T]{}
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e.etcdRegistryImpl, err = newServiceRegistryImpl(endpoints, resultT[T]{}.Value.EtcdRootKey(), username, password, e.saveNode, e.replace)
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e.nodes = &sync.Map{}
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return e, err
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}
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func (r *Registry[T]) Register(node INode) error {
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bs, err := json.Marshal(node)
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if err != nil {
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return err
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}
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return r.etcdRegistryImpl.Register(node.EtcdKey(), string(bs))
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}
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// 保存当前服务
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func (r *Registry[T]) saveNode(newNodes *sync.Map, jsonBytes []byte) {
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var tmp = resultT[T]{}
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if err := json.Unmarshal(jsonBytes, &tmp.Value); err != nil {
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log.ErrorF(err.Error())
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}
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newNodes.Store(tmp.Value.MapKey(), tmp.Value)
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}
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// 保存当前服务
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func (r *Registry[T]) replace(newNodes *sync.Map) {
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r.nodes = newNodes
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}
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// 获取当前根节点下所有节点信息
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func (r *Registry[T]) GetNodes() *sync.Map {
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return r.nodes
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}
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// 根据inode的mapKey()查找对应的节点
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func (r *Registry[T]) FindNode(key string) (T, error) {
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var tmp = resultT[T]{}
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v, ok := r.nodes.Load(key)
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if !ok {
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return tmp.Value, fmt.Errorf("%v not exist", key)
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}
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if tmp.Value, ok = v.(T); ok {
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return tmp.Value, nil
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}
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return tmp.Value, fmt.Errorf("%v 类型转换失败", key)
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}
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