Move connectionhandler.go into api package

Move connectionhandler.go into api package
This brings it inline with the other API handlers

Issue-ID: MULTICLOUD-666
Change-Id: Ia3b832159f537c6d8d8ecc93b56bc9b085649f7e
Signed-off-by: Kiran Kamineni <kiran.k.kamineni@intel.com>

1 files changed, 146 insertions, 0 deletions

diff --git a/src/k8splugin/api/connectionhandler.go b/src/k8splugin/api/connectionhandler.go
new file mode 100644
index 00000000..21250b14
--- /dev/null
+++ b/src/k8splugin/api/connectionhandler.go
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2018 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 (
+	"bytes"
+	"encoding/base64"
+	"encoding/json"
+	"io"
+	"io/ioutil"
+	"net/http"
+
+	"github.com/onap/multicloud-k8s/src/k8splugin/internal/connection"
+
+	"github.com/gorilla/mux"
+)
+
+// connectionHandler is used to store backend implementations objects
+// Also simplifies mocking for unit testing purposes
+type connectionHandler struct {
+	// Interface that implements Connectivity operations
+	// We will set this variable with a mock interface for testing
+	client connection.ConnectionManager
+}
+
+// CreateHandler handles creation of the connectivity entry in the database
+// This is a multipart handler. See following example curl request
+// curl -i -F "metadata={\"cloud-region\":\"kud\",\"cloud-owner\":\"me\"};type=application/json" \
+//         -F file=@/home/user/.kube/config \
+//         -X POST http://localhost:8081/v1/connectivity-info
+func (h connectionHandler) createHandler(w http.ResponseWriter, r *http.Request) {
+	var v connection.Connection
+
+	// Implemenation using multipart form
+	// Review and enable/remove at a later date
+	// Set Max size to 16mb here
+	err := r.ParseMultipartForm(16777216)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+		return
+	}
+
+	jsn := bytes.NewBuffer([]byte(r.FormValue("metadata")))
+	err = json.NewDecoder(jsn).Decode(&v)
+	switch {
+	case err == io.EOF:
+		http.Error(w, "Empty body", http.StatusBadRequest)
+		return
+	case err != nil:
+		http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+		return
+	}
+
+	// Name is required.
+	if v.CloudRegion == "" {
+		http.Error(w, "Missing name in POST request", http.StatusBadRequest)
+		return
+	}
+
+	// Cloudowner is required.
+	if v.CloudOwner == "" {
+		http.Error(w, "Missing cloudowner in POST request", http.StatusBadRequest)
+		return
+	}
+
+	//Read the file section and ignore the header
+	file, _, err := r.FormFile("file")
+	if err != nil {
+		http.Error(w, "Unable to process file", http.StatusUnprocessableEntity)
+		return
+	}
+
+	defer file.Close()
+
+	//Convert the file content to base64 for storage
+	content, err := ioutil.ReadAll(file)
+	if err != nil {
+		http.Error(w, "Unable to read file", http.StatusUnprocessableEntity)
+		return
+	}
+
+	v.Kubeconfig = base64.StdEncoding.EncodeToString(content)
+
+	ret, err := h.client.Create(v)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusCreated)
+	err = json.NewEncoder(w).Encode(ret)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+}
+
+// getHandler handles GET operations on a particular name
+// Returns a  Connectivity instance
+func (h connectionHandler) getHandler(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	name := vars["connname"]
+
+	ret, err := h.client.Get(name)
+	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(ret)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+}
+
+// deleteHandler handles DELETE operations on a particular record
+func (h connectionHandler) deleteHandler(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	name := vars["connname"]
+
+	err := h.client.Delete(name)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}