90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
package etcd
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import (
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"strings"
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"github.com/coreos/etcd/clientv3"
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"github.com/coreos/etcd/mvcc/mvccpb"
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"github.com/micro/go-micro/config/encoder"
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)
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func makeEvMap(e encoder.Encoder, data map[string]interface{}, kv []*clientv3.Event, stripPrefix string) map[string]interface{} {
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if data == nil {
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data = make(map[string]interface{})
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}
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for _, v := range kv {
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switch mvccpb.Event_EventType(v.Type) {
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case mvccpb.DELETE:
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data = update(e, data, (*mvccpb.KeyValue)(v.Kv), "delete", stripPrefix)
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default:
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data = update(e, data, (*mvccpb.KeyValue)(v.Kv), "insert", stripPrefix)
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}
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}
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return data
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}
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func makeMap(e encoder.Encoder, kv []*mvccpb.KeyValue, stripPrefix string) map[string]interface{} {
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data := make(map[string]interface{})
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for _, v := range kv {
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data = update(e, data, v, "put", stripPrefix)
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}
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return data
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}
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func update(e encoder.Encoder, data map[string]interface{}, v *mvccpb.KeyValue, action, stripPrefix string) map[string]interface{} {
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// remove prefix if non empty, and ensure leading / is removed as well
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vkey := strings.TrimPrefix(strings.TrimPrefix(string(v.Key), stripPrefix), "/")
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// split on prefix
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haveSplit := strings.Contains(vkey, "/")
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keys := strings.Split(vkey, "/")
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var vals interface{}
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e.Decode(v.Value, &vals)
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if !haveSplit && len(keys) == 1 {
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switch action {
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case "delete":
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data = make(map[string]interface{})
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default:
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v, ok := vals.(map[string]interface{})
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if ok {
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data = v
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}
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}
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return data
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}
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// set data for first iteration
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kvals := data
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// iterate the keys and make maps
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for i, k := range keys {
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kval, ok := kvals[k].(map[string]interface{})
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if !ok {
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// create next map
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kval = make(map[string]interface{})
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// set it
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kvals[k] = kval
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}
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// last key: write vals
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if l := len(keys) - 1; i == l {
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switch action {
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case "delete":
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delete(kvals, k)
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default:
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kvals[k] = vals
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}
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break
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}
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// set kvals for next iterator
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kvals = kval
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}
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return data
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}
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