Orchestrator support for network intent updates

Adds support code in orchestrator for handling
updates to app context resources when ncm
handles network intents.
Add a get cluster names call to the app context

Issue-ID: MULTICLOUD-1029
Signed-off-by: Eric Multanen <eric.w.multanen@intel.com>
Change-Id: Ifdc78488a1e86f43d6fe656c59675862c4818af5

1 files changed, 32 insertions, 0 deletions

diff --git a/src/orchestrator/pkg/appcontext/appcontext.go b/src/orchestrator/pkg/appcontext/appcontext.go
index bad5fa47..17afda9e 100644
--- a/src/orchestrator/pkg/appcontext/appcontext.go
+++ b/src/orchestrator/pkg/appcontext/appcontext.go
@@ -18,6 +18,8 @@ package appcontext
 
 import (
 	"fmt"
+	"strings"
+
 	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/rtcontext"
 	pkgerrors "github.com/pkg/errors"
 )
@@ -160,6 +162,36 @@ func (ac *AppContext) GetClusterHandle(appname string, clustername string) (inte
 	return nil, pkgerrors.Errorf("No handle was found for the given cluster")
 }
 
+//Returns a list of all clusters for a given app
+func (ac *AppContext) GetClusterNames(appname string) ([]string, error) {
+	if appname == "" {
+		return nil, pkgerrors.Errorf("Not a valid run time context app name")
+	}
+
+	rh, err := ac.rtc.RtcGet()
+	if err != nil {
+		return nil, err
+	}
+
+	prefix := fmt.Sprintf("%v", rh) + "app/" + appname + "/cluster/"
+	hs, err := ac.rtc.RtcGetHandles(prefix)
+	if err != nil {
+		return nil, pkgerrors.Errorf("Error getting handles for %v", prefix)
+	}
+	var cs []string
+	for _, h := range hs {
+		hstr := fmt.Sprintf("%v", h)
+		ks := strings.Split(hstr, prefix)
+		for _, k := range ks {
+			ck := strings.Split(k, "/")
+			if len(ck) == 2 && ck[1] == "" {
+				cs = append(cs, ck[0])
+			}
+		}
+	}
+	return cs, nil
+}
+
 //Add resource under app and cluster
 func (ac *AppContext) AddResource(handle interface{}, resname string, value interface{}) (interface{}, error) {
 	h, err := ac.rtc.RtcAddResource(handle, resname, value)