crimson server: Implemented SelectHost and InsertHost

go/src/infra/crimson/server/frontend/crimson_service.go

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package frontend
 
 import (
         "golang.org/x/net/context"
 
         "google.golang.org/grpc"
@@ skipping 39 matching lines @@
                         ret.Ranges,
                         &crimson.IPRange{
                                 Site:    row.Site,
                                 Vlan:    row.Vlan,
                                 StartIp: row.StartIP,
                                 EndIp:   row.EndIP,
                         })
         }
         return &ret, nil
 }
+
+func (s *crimsonService) CreateHost(ctx context.Context, req *crimson.HostList) (*crimson.HostStatus, error) {
+        err := crimsondb.InsertHost(ctx, req)
+        return &crimson.HostStatus{}, userErrorToGRPCError(err)
+}
+
+func (s *crimsonService) ReadHost(ctx context.Context, req *crimson.HostQuery) (*crimson.HostList, error) {
+        rows, err := crimsondb.SelectHost(ctx, req)
+
+        if err == nil {
+                return rows, nil
+        }
+        return nil, userErrorToGRPCError(err)
+}