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path: root/src/orchestrator/api/composite_profilehandler.go
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/*
 * Copyright 2020 Intel Corporation, Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package api

import (
	"encoding/json"
	"io"
	"net/http"

	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/validation"
	moduleLib "github.com/onap/multicloud-k8s/src/orchestrator/pkg/module"

	"github.com/gorilla/mux"
)

var caprofileJSONFile string = "json-schemas/metadata.json"

/* Used to store backend implementation objects
Also simplifies mocking for unit testing purposes
*/
type compositeProfileHandler struct {
	client moduleLib.CompositeProfileManager
}

// createCompositeProfileHandler handles the create operation of intent
func (h compositeProfileHandler) createHandler(w http.ResponseWriter, r *http.Request) {

	var cpf moduleLib.CompositeProfile

	err := json.NewDecoder(r.Body).Decode(&cpf)
	switch {
	case err == io.EOF:
		http.Error(w, "Empty body", http.StatusBadRequest)
		return
	case err != nil:
		http.Error(w, err.Error(), http.StatusUnprocessableEntity)
		return
	}

	// Verify JSON Body
	err, httpError := validation.ValidateJsonSchemaData(caprofileJSONFile, cpf)
	if err != nil {
		http.Error(w, err.Error(), httpError)
		return
	}

	vars := mux.Vars(r)
	projectName := vars["project-name"]
	compositeAppName := vars["composite-app-name"]
	version := vars["composite-app-version"]

	cProf, createErr := h.client.CreateCompositeProfile(cpf, projectName, compositeAppName, version)
	if createErr != nil {
		http.Error(w, createErr.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(http.StatusCreated)
	err = json.NewEncoder(w).Encode(cProf)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
}

// getHandler handles the GET operations on CompositeProfile
func (h compositeProfileHandler) getHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	cProfName := vars["composite-profile-name"]

	projectName := vars["project-name"]
	if projectName == "" {
		http.Error(w, "Missing projectName in GET request", http.StatusBadRequest)
		return
	}
	compositeAppName := vars["composite-app-name"]
	if compositeAppName == "" {
		http.Error(w, "Missing compositeAppName in GET request", http.StatusBadRequest)
		return
	}

	version := vars["composite-app-version"]
	if version == "" {
		http.Error(w, "Missing version in GET request", http.StatusBadRequest)
		return
	}

	// handle the get all composite profile case
	if len(cProfName) == 0 {
		var retList []moduleLib.CompositeProfile

		ret, err := h.client.GetCompositeProfiles(projectName, compositeAppName, version)
		if err != nil {
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		for _, cl := range ret {
			retList = append(retList, moduleLib.CompositeProfile{Metadata: cl.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
	}

	cProf, err := h.client.GetCompositeProfile(cProfName, projectName, compositeAppName, version)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(http.StatusOK)
	err = json.NewEncoder(w).Encode(cProf)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
}

// deleteHandler handles the delete operations on CompostiteProfile
func (h compositeProfileHandler) deleteHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	c := vars["composite-profile-name"]
	p := vars["project-name"]
	ca := vars["composite-app-name"]
	v := vars["composite-app-version"]

	err := h.client.DeleteCompositeProfile(c, p, ca, v)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	w.WriteHeader(http.StatusNoContent)
}