CORD-270 CORD-444 added REST API to get list of switches and addded switches to MAAS

Change-Id: I0f1778b835fed947e19ace4ecff4900d72b405b6
diff --git a/switchq/handlers.go b/switchq/handlers.go
new file mode 100644
index 0000000..3e302bd
--- /dev/null
+++ b/switchq/handlers.go
@@ -0,0 +1,32 @@
+// Copyright 2016 Open Networking Laboratory
+//
+// 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 main
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+func (c *AppContext) ListSwitchesHandler(w http.ResponseWriter, r *http.Request) {
+	log.Info("Request received for switch list")
+	c.mutex.RLock()
+	bytes, err := json.Marshal(c.publishList)
+	c.mutex.RUnlock()
+
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	w.Write(bytes)
+}