Added getAllApps functionality in App api

Issue-ID: MULTICLOUD-994
Signed-off-by: Srivahni Chivukula <srivahni.chivukula@intel.com>
Change-Id: I459504c45b9bedea0e6bc15ca57e7876d5f59d28

3 files changed, 54 insertions, 0 deletions

diff --git a/src/orchestrator/api/api.go b/src/orchestrator/api/api.go
index 70b40d96..a261319c 100644
--- a/src/orchestrator/api/api.go
+++ b/src/orchestrator/api/api.go
@@ -84,6 +84,7 @@ func NewRouter(projectClient moduleLib.ProjectManager,
 
 	router.HandleFunc("/projects/{project-name}/composite-apps/{composite-app-name}/{version}/apps", appHandler.createAppHandler).Methods("POST")
 	router.HandleFunc("/projects/{project-name}/composite-apps/{composite-app-name}/{version}/apps/{app-name}", appHandler.getAppHandler).Methods("GET")
+	router.HandleFunc("/projects/{project-name}/composite-apps/{composite-app-name}/{version}/apps", appHandler.getAppHandler).Methods("GET")
 	router.HandleFunc("/projects/{project-name}/composite-apps/{composite-app-name}/{version}/apps/{app-name}", appHandler.deleteAppHandler).Methods("DELETE")
 
 	if compositeProfileClient == nil {
diff --git a/src/orchestrator/api/apphandler.go b/src/orchestrator/api/apphandler.go
index 3cd2dbc8..06341e7e 100644
--- a/src/orchestrator/api/apphandler.go
+++ b/src/orchestrator/api/apphandler.go
@@ -129,6 +129,30 @@ func (h appHandler) getAppHandler(w http.ResponseWriter, r *http.Request) {
 	compositeAppVersion := vars["version"]
 	name := vars["app-name"]
 
+	// handle the get all apps case - return a list of only the json parts
+	if len(name) == 0 {
+		var retList []moduleLib.App
+
+		ret, err := h.client.GetApps(projectName, compositeAppName, compositeAppVersion)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		for _, app := range ret {
+			retList = append(retList, moduleLib.App{Metadata: app.Metadata})
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		err = json.NewEncoder(w).Encode(retList)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		return
+	}
+
 	accepted, _, err := mime.ParseMediaType(r.Header.Get("Accept"))
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusNotAcceptable)
diff --git a/src/orchestrator/pkg/module/app.go b/src/orchestrator/pkg/module/app.go
index c25a1b51..1e1a5974 100644
--- a/src/orchestrator/pkg/module/app.go
+++ b/src/orchestrator/pkg/module/app.go
@@ -65,6 +65,7 @@ type AppManager interface {
 	CreateApp(a App, ac AppContent, p string, cN string, cV string) (App, error)
 	GetApp(name string, p string, cN string, cV string) (App, error)
 	GetAppContent(name string, p string, cN string, cV string) (AppContent, error)
+	GetApps(p string, cN string, cV string) ([]App, error)
 	DeleteApp(name string, p string, cN string, cV string) error
 }
 
@@ -183,6 +184,34 @@ func (v *AppClient) GetAppContent(name string, p string, cN string, cV string) (
 	return AppContent{}, pkgerrors.New("Error getting app content")
 }
 
+// GetApps returns all Apps for given composite App
+func (v *AppClient) GetApps(project, compositeApp, compositeAppVersion string) ([]App, error) {
+
+	key := AppKey{
+		App:                 "",
+		Project:             project,
+		CompositeApp:        compositeApp,
+		CompositeAppVersion: compositeAppVersion,
+	}
+
+	var resp []App
+	values, err := db.DBconn.Find(v.storeName, key, v.tagMeta)
+	if err != nil {
+		return []App{}, pkgerrors.Wrap(err, "Get Apps")
+	}
+
+	for _, value := range values {
+		a := App{}
+		err = db.DBconn.Unmarshal(value, &a)
+		if err != nil {
+			return []App{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+		}
+		resp = append(resp, a)
+	}
+
+	return resp, nil
+}
+
 // DeleteApp deletes the  App from database
 func (v *AppClient) DeleteApp(name string, p string, cN string, cV string) error {