initial commit

Signed-off-by: Derek McQuay <derekmcquay@gmail.com>

vendor/cloud.google.com/go/longrunning/example_test.go

@@ -0,0 +1,116 @@
+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// 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 longrunning
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/golang/protobuf/ptypes"
+	"github.com/golang/protobuf/ptypes/duration"
+	"github.com/golang/protobuf/ptypes/timestamp"
+	"golang.org/x/net/context"
+	pb "google.golang.org/genproto/googleapis/longrunning"
+)
+
+func bestMomentInHistory() (*Operation, error) {
+	t, err := time.Parse("2006-01-02 15:04:05.999999999 -0700 MST", "2009-11-10 23:00:00 +0000 UTC")
+	if err != nil {
+		return nil, err
+	}
+	resp, err := ptypes.TimestampProto(t)
+	if err != nil {
+		return nil, err
+	}
+	respAny, err := ptypes.MarshalAny(resp)
+	if err != nil {
+		return nil, err
+	}
+	metaAny, err := ptypes.MarshalAny(ptypes.DurationProto(1 * time.Hour))
+	return &Operation{
+		proto: &pb.Operation{
+			Name:     "best-moment",
+			Done:     true,
+			Metadata: metaAny,
+			Result: &pb.Operation_Response{
+				Response: respAny,
+			},
+		},
+	}, err
+}
+
+func ExampleOperation_Wait() {
+	// Complex computation, might take a long time.
+	op, err := bestMomentInHistory()
+	if err != nil {
+		// TODO: Handle err.
+	}
+	var ts timestamp.Timestamp
+	err = op.Wait(context.TODO(), &ts)
+	if err != nil && !op.Done() {
+		fmt.Println("failed to fetch operation status", err)
+	} else if err != nil && op.Done() {
+		fmt.Println("operation completed with error", err)
+	} else {
+		fmt.Println(ptypes.TimestampString(&ts))
+	}
+	// Output:
+	// 2009-11-10T23:00:00Z
+}
+
+func ExampleOperation_Metadata() {
+	op, err := bestMomentInHistory()
+	if err != nil {
+		// TODO: Handle err.
+	}
+
+	// The operation might contain metadata.
+	// In this example, the metadata contains the estimated length of time
+	// the operation might take to complete.
+	var meta duration.Duration
+	if err := op.Metadata(&meta); err != nil {
+		// TODO: Handle err.
+	}
+	d, err := ptypes.Duration(&meta)
+	if err == ErrNoMetadata {
+		fmt.Println("no metadata")
+	} else if err != nil {
+		// TODO: Handle err.
+	} else {
+		fmt.Println(d)
+	}
+	// Output:
+	// 1h0m0s
+}
+
+func ExampleOperation_Cancel() {
+	op, err := bestMomentInHistory()
+	if err != nil {
+		// TODO: Handle err.
+	}
+	if err := op.Cancel(context.Background()); err != nil {
+		// TODO: Handle err.
+	}
+}
+
+func ExampleOperation_Delete() {
+	op, err := bestMomentInHistory()
+	if err != nil {
+		// TODO: Handle err.
+	}
+	if err := op.Delete(context.Background()); err != nil {
+		// TODO: Handle err.
+	}
+}