oc-lib/models/peer/peer_cache.go
2024-08-23 10:01:37 +02:00

128 lines
3.5 KiB
Go

package peer
import (
"encoding/json"
"errors"
"fmt"
"regexp"
"strings"
"cloud.o-forge.io/core/oc-lib/models/utils"
"cloud.o-forge.io/core/oc-lib/tools"
)
type PeerExecution struct {
Method string `json:"method" bson:"method"`
Url string `json:"url" bson:"url"`
Body map[string]interface{} `json:"body" bson:"body"`
DataType int `json:"data_type" bson:"data_type"`
DataID string `json:"data_id" bson:"data_id"`
}
type PeerCache struct {
Executions []*PeerExecution
}
func (p *PeerCache) urlFormat(url string, dt utils.DataType) string {
if strings.Contains(url, "localhost") || strings.Contains(url, "127.0.0.1") {
url = strings.ReplaceAll(url, "localhost", dt.API())
url = strings.ReplaceAll(url, "127.0.0.1", dt.API())
r := regexp.MustCompile("(:[0-9]+)")
t := r.FindString(url)
if t != "" {
url = strings.Replace(url, t, ":8080", -1)
}
r.ReplaceAllString(url, ":8080")
}
return url
}
func (p *PeerCache) checkPeerStatus(peerID string, appName string, caller *tools.HTTPCaller) (*Peer, bool) {
api := tools.API{}
access := (&Peer{}).GetAccessor(nil)
res, code, _ := access.LoadOne(peerID)
if code != 200 {
return nil, false
}
methods := caller.URLS[utils.PEER.String()]
fmt.Println("PEER AFT 3", methods)
if methods == nil {
return res.(*Peer), false
}
meth := methods[tools.POST]
fmt.Println("PEER AFT 4", meth)
if meth == "" {
return res.(*Peer), false
}
url := p.urlFormat(res.(*Peer).Url+meth, utils.PEER)
fmt.Println("PEER AFT 5", url)
state, services := api.CheckRemotePeer(url)
res.(*Peer).Services = services
access.UpdateOne(res, peerID)
return res.(*Peer), state != tools.DEAD && services[appName] == 0
}
func (p *PeerCache) GetAccessor(caller *tools.HTTPCaller) utils.Accessor {
data := New()
data.Init(utils.PEER, caller)
return data
}
func (p *PeerCache) LaunchPeerExecution(peerID string, dataID string,
dt utils.DataType, method tools.METHOD, body map[string]interface{}, caller *tools.HTTPCaller) (*PeerExecution, error) {
var err error
b := []byte{}
methods := caller.URLS[dt.String()]
if _, ok := methods[method]; !ok {
return nil, errors.New("no path found")
}
meth := methods[method]
if meth == "" {
return nil, errors.New("no path found")
} else {
meth = strings.ReplaceAll(meth, ":id", dataID)
}
url := ""
pexec := &PeerExecution{
Method: method.String(),
Url: url + methods[method],
Body: body,
DataType: dt.EnumIndex(),
DataID: dataID,
}
if mypeer, ok := p.checkPeerStatus(peerID, dt.API(), caller); !ok {
mypeer.AddExecution(*pexec)
mypeer.GetAccessor(nil).UpdateOne(mypeer, peerID)
return nil, errors.New("peer is not reachable")
} else {
url = p.urlFormat((mypeer.Url)+meth, dt)
fmt.Println("LaunchPeerExecution AFT 3", url)
tmp := mypeer.FailedExecution
mypeer.FailedExecution = []PeerExecution{}
mypeer.GetAccessor(nil).UpdateOne(mypeer, peerID)
for _, v := range tmp {
go p.LaunchPeerExecution(peerID, v.DataID, utils.DataType(v.DataType), tools.ToMethod(v.Method), v.Body, caller)
}
}
if method == tools.POST {
b, err = caller.CallPost(url, "", body)
}
if method == tools.GET {
b, err = caller.CallGet(url, "")
}
if method == tools.DELETE {
b, err = caller.CallDelete(url, "")
}
var m map[string]interface{}
json.Unmarshal(b, &m)
if err != nil {
return nil, err
}
fmt.Println("LaunchPeerExecution AFT 3", m, url)
if e, ok := m["error"]; !ok && e != "" {
return nil, errors.New(fmt.Sprintf("%v", m["error"]))
}
return nil, err
}