Implementation of janusHTTPjsonDP

agents/janusagent.go

@@ -19,10 +19,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package agents
 
 import (
+	"fmt"
 	"net/http"
 
 	"github.com/cgrates/cgrates/config"
 	"github.com/cgrates/cgrates/engine"
+	"github.com/cgrates/cgrates/utils"
 )
 
 // NewJanusAgent will construct a JanusAgent
@@ -47,51 +49,54 @@ type JanusAgent struct {
 
 // ServeHTTP implements http.Handler interface
 func (ja *JanusAgent) ServeHTTP(w http.ResponseWriter, req *http.Request) {
-	/*dcdr, err := newHADataProvider(ha.reqPayload, req) // dcdr will provide information from request
+	dcdr, err := newJanusHTTPjsonDP(req) // dcdr will provide information from request
 	if err != nil {
 		utils.Logger.Warning(
 			fmt.Sprintf("<%s> error creating decoder: %s",
 				utils.HTTPAgent, err.Error()))
+		http.Error(w, err.Error(), http.StatusBadRequest)
 		return
 	}
-	cgrRplyNM := &utils.DataNode{Type: utils.NMMapType, Map: make(map[string]*utils.DataNode)}
-	rplyNM := utils.NewOrderedNavigableMap()
-	opts := utils.MapStorage{}
-	reqVars := &utils.DataNode{Type: utils.NMMapType, Map: map[string]*utils.DataNode{utils.RemoteHost: utils.NewLeafNode(req.RemoteAddr)}}
-	for _, reqProcessor := range ha.reqProcessors {
-		agReq := NewAgentRequest(dcdr, reqVars, cgrRplyNM, rplyNM,
-			opts, reqProcessor.Tenant, ha.dfltTenant,
-			utils.FirstNonEmpty(reqProcessor.Timezone,
-				config.CgrConfig().GeneralCfg().DefaultTimezone),
-			ha.filterS, nil)
-		lclProcessed, err := processRequest(context.TODO(), reqProcessor, agReq,
-			utils.HTTPAgent, ha.connMgr, ha.sessionConns,
-			agReq.filterS)
+	utils.Logger.Debug(dcdr.String())
+	/*
+		cgrRplyNM := &utils.DataNode{Type: utils.NMMapType, Map: make(map[string]*utils.DataNode)}
+		rplyNM := utils.NewOrderedNavigableMap()
+		opts := utils.MapStorage{}
+		reqVars := &utils.DataNode{Type: utils.NMMapType, Map: map[string]*utils.DataNode{utils.RemoteHost: utils.NewLeafNode(req.RemoteAddr)}}
+		for _, reqProcessor := range ha.reqProcessors {
+			agReq := NewAgentRequest(dcdr, reqVars, cgrRplyNM, rplyNM,
+				opts, reqProcessor.Tenant, ha.dfltTenant,
+				utils.FirstNonEmpty(reqProcessor.Timezone,
+					config.CgrConfig().GeneralCfg().DefaultTimezone),
+				ha.filterS, nil)
+			lclProcessed, err := processRequest(context.TODO(), reqProcessor, agReq,
+				utils.HTTPAgent, ha.connMgr, ha.sessionConns,
+				agReq.filterS)
+			if err != nil {
+				utils.Logger.Warning(
+					fmt.Sprintf("<%s> error: %s processing request: %s",
+						utils.HTTPAgent, err.Error(), utils.ToJSON(agReq)))
+				return // FixMe with returning some error on HTTP level
+			}
+			if !lclProcessed {
+				continue
+			}
+			if lclProcessed && !reqProcessor.Flags.GetBool(utils.MetaContinue) {
+				break
+			}
+		}
+		encdr, err := newHAReplyEncoder(ha.rplyPayload, w)
 		if err != nil {
 			utils.Logger.Warning(
-				fmt.Sprintf("<%s> error: %s processing request: %s",
-					utils.HTTPAgent, err.Error(), utils.ToJSON(agReq)))
-			return // FixMe with returning some error on HTTP level
+				fmt.Sprintf("<%s> error creating reply encoder: %s",
+					utils.HTTPAgent, err.Error()))
+			return
 		}
-		if !lclProcessed {
-			continue
+		if err = encdr.Encode(rplyNM); err != nil {
+			utils.Logger.Warning(
+				fmt.Sprintf("<%s> error: %s encoding out %s",
+					utils.HTTPAgent, err.Error(), utils.ToJSON(rplyNM)))
+			return
 		}
-		if lclProcessed && !reqProcessor.Flags.GetBool(utils.MetaContinue) {
-			break
-		}
-	}
-	encdr, err := newHAReplyEncoder(ha.rplyPayload, w)
-	if err != nil {
-		utils.Logger.Warning(
-			fmt.Sprintf("<%s> error creating reply encoder: %s",
-				utils.HTTPAgent, err.Error()))
-		return
-	}
-	if err = encdr.Encode(rplyNM); err != nil {
-		utils.Logger.Warning(
-			fmt.Sprintf("<%s> error: %s encoding out %s",
-				utils.HTTPAgent, err.Error(), utils.ToJSON(rplyNM)))
-		return
-	}
 	*/
 }

agents/libjanusagent.go

@@ -0,0 +1,79 @@
+/*
+Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
+Copyright (C) ITsysCOM GmbH
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>
+*/
+
+package agents
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httputil"
+
+	"github.com/cgrates/cgrates/utils"
+)
+
+// newJanusHTTPjsonDP is the constructor for janusHTTPjsonDP struct
+func newJanusHTTPjsonDP(req *http.Request) (utils.DataProvider, error) {
+	jHj := &janusHTTPjsonDP{req: req, cache: utils.MapStorage{}}
+	if err := json.NewDecoder(req.Body).Decode(&jHj.reqBody); err != nil {
+		return nil, err
+	}
+	return jHj, nil
+}
+
+// janusHTTPjsonDP implements utils.DataProvider, serving as JSON data decoder
+// decoded data is only searched once and cached
+type janusHTTPjsonDP struct {
+	req     *http.Request
+	reqBody map[string]interface{} // unmarshal JSON body here
+	cache   utils.MapStorage
+}
+
+// String is part of utils.DataProvider interface
+// when called, it will display the already parsed values out of cache
+func (jHj *janusHTTPjsonDP) String() string {
+	byts, _ := httputil.DumpRequest(jHj.req, true)
+	return string(byts)
+}
+
+// FieldAsInterface is part of utils.DataProvider interface
+func (jHj *janusHTTPjsonDP) FieldAsInterface(fldPath []string) (data any, err error) {
+	if len(fldPath) != 1 {
+		return nil, utils.ErrNotFound
+	}
+	if data, err = jHj.cache.FieldAsInterface(fldPath); err != nil {
+		if err != utils.ErrNotFound { // item found in cache
+			return
+		}
+		err = nil // cancel previous err
+	} else {
+		return // data found in cache
+	}
+	data = jHj.reqBody[fldPath[0]]
+	jHj.cache.Set(fldPath, data)
+	return
+}
+
+// FieldAsString is part of utils.DataProvider interface
+func (jHj *janusHTTPjsonDP) FieldAsString(fldPath []string) (data string, err error) {
+	var valIface any
+	valIface, err = jHj.FieldAsInterface(fldPath)
+	if err != nil {
+		return
+	}
+	return utils.IfaceAsString(valIface), nil
+}