vendor files

vendor/github.com/kubernetes-csi/drivers/pkg/csi-common/utils.go

@@ -0,0 +1,127 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+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 csicommon
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/container-storage-interface/spec/lib/go/csi"
+	"github.com/golang/glog"
+	"golang.org/x/net/context"
+	"google.golang.org/grpc"
+)
+
+func ParseEndpoint(ep string) (string, string, error) {
+	if strings.HasPrefix(strings.ToLower(ep), "unix://") || strings.HasPrefix(strings.ToLower(ep), "tcp://") {
+		s := strings.SplitN(ep, "://", 2)
+		if s[1] != "" {
+			return s[0], s[1], nil
+		}
+	}
+	return "", "", fmt.Errorf("Invalid endpoint: %v", ep)
+}
+
+func GetVersionString(v *csi.Version) string {
+	return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Patch)
+}
+
+func GetVersionFromString(v string) (*csi.Version, error) {
+	var major, minor, patch uint32
+
+	n, err := fmt.Sscanf(v, "%d.%d.%d", &major, &minor, &patch)
+	if err != nil {
+		return nil, err
+	}
+	if n != 3 {
+		return nil, fmt.Errorf("Invalid format. Specify version in x.y.z format")
+	}
+
+	return &csi.Version{
+		Major: major,
+		Minor: minor,
+		Patch: patch,
+	}, nil
+}
+
+func NewVolumeCapabilityAccessMode(mode csi.VolumeCapability_AccessMode_Mode) *csi.VolumeCapability_AccessMode {
+	return &csi.VolumeCapability_AccessMode{Mode: mode}
+}
+
+func NewDefaultNodeServer(d *CSIDriver) *DefaultNodeServer {
+	return &DefaultNodeServer{
+		Driver: d,
+	}
+}
+
+func NewDefaultIdentityServer(d *CSIDriver) *DefaultIdentityServer {
+	return &DefaultIdentityServer{
+		Driver: d,
+	}
+}
+
+func NewDefaultControllerServer(d *CSIDriver) *DefaultControllerServer {
+	return &DefaultControllerServer{
+		Driver: d,
+	}
+}
+
+func NewControllerServiceCapability(cap csi.ControllerServiceCapability_RPC_Type) *csi.ControllerServiceCapability {
+	return &csi.ControllerServiceCapability{
+		Type: &csi.ControllerServiceCapability_Rpc{
+			Rpc: &csi.ControllerServiceCapability_RPC{
+				Type: cap,
+			},
+		},
+	}
+}
+
+func RunNodePublishServer(endpoint string, d *CSIDriver, ns csi.NodeServer) {
+	ids := NewDefaultIdentityServer(d)
+
+	s := NewNonBlockingGRPCServer()
+	s.Start(endpoint, ids, nil, ns)
+	s.Wait()
+}
+
+func RunControllerPublishServer(endpoint string, d *CSIDriver, cs csi.ControllerServer) {
+	ids := NewDefaultIdentityServer(d)
+
+	s := NewNonBlockingGRPCServer()
+	s.Start(endpoint, ids, cs, nil)
+	s.Wait()
+}
+
+func RunControllerandNodePublishServer(endpoint string, d *CSIDriver, cs csi.ControllerServer, ns csi.NodeServer) {
+	ids := NewDefaultIdentityServer(d)
+
+	s := NewNonBlockingGRPCServer()
+	s.Start(endpoint, ids, cs, ns)
+	s.Wait()
+}
+
+func logGRPC(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
+	glog.V(3).Infof("GRPC call: %s", info.FullMethod)
+	glog.V(5).Infof("GRPC request: %+v", req)
+	resp, err := handler(ctx, req)
+	if err != nil {
+		glog.Errorf("GRPC error: %v", err)
+	} else {
+		glog.V(5).Infof("GRPC response: %+v", resp)
+	}
+	return resp, err
+}