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// Copyright 2021 Google LLC
//
// 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
//
// https://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.
// Code generated by protoc-gen-go_gapic. DO NOT EDIT.
package functions
import (
"context"
"fmt"
"math"
"net/url"
"time"
"cloud.google.com/go/longrunning"
lroauto "cloud.google.com/go/longrunning/autogen"
"github.com/golang/protobuf/proto"
gax "github.com/googleapis/gax-go/v2"
"google.golang.org/api/iterator"
"google.golang.org/api/option"
"google.golang.org/api/option/internaloption"
gtransport "google.golang.org/api/transport/grpc"
functionspb "google.golang.org/genproto/googleapis/cloud/functions/v1"
iampb "google.golang.org/genproto/googleapis/iam/v1"
longrunningpb "google.golang.org/genproto/googleapis/longrunning"
"google.golang.org/grpc"
"google.golang.org/grpc/metadata"
)
var newCloudFunctionsClientHook clientHook
// CloudFunctionsCallOptions contains the retry settings for each method of CloudFunctionsClient.
type CloudFunctionsCallOptions struct {
ListFunctions []gax.CallOption
GetFunction []gax.CallOption
CreateFunction []gax.CallOption
UpdateFunction []gax.CallOption
DeleteFunction []gax.CallOption
CallFunction []gax.CallOption
GenerateUploadUrl []gax.CallOption
GenerateDownloadUrl []gax.CallOption
SetIamPolicy []gax.CallOption
GetIamPolicy []gax.CallOption
TestIamPermissions []gax.CallOption
}
func defaultCloudFunctionsClientOptions() []option.ClientOption {
return []option.ClientOption{
internaloption.WithDefaultEndpoint("cloudfunctions.googleapis.com:443"),
internaloption.WithDefaultMTLSEndpoint("cloudfunctions.mtls.googleapis.com:443"),
internaloption.WithDefaultAudience("https://cloudfunctions.googleapis.com/"),
internaloption.WithDefaultScopes(DefaultAuthScopes()...),
option.WithGRPCDialOption(grpc.WithDisableServiceConfig()),
option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
grpc.MaxCallRecvMsgSize(math.MaxInt32))),
}
}
func defaultCloudFunctionsCallOptions() *CloudFunctionsCallOptions {
return &CloudFunctionsCallOptions{
ListFunctions: []gax.CallOption{},
GetFunction: []gax.CallOption{},
CreateFunction: []gax.CallOption{},
UpdateFunction: []gax.CallOption{},
DeleteFunction: []gax.CallOption{},
CallFunction: []gax.CallOption{},
GenerateUploadUrl: []gax.CallOption{},
GenerateDownloadUrl: []gax.CallOption{},
SetIamPolicy: []gax.CallOption{},
GetIamPolicy: []gax.CallOption{},
TestIamPermissions: []gax.CallOption{},
}
}
// CloudFunctionsClient is a client for interacting with .
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type CloudFunctionsClient struct {
// Connection pool of gRPC connections to the service.
connPool gtransport.ConnPool
// flag to opt out of default deadlines via GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE
disableDeadlines bool
// The gRPC API client.
cloudFunctionsClient functionspb.CloudFunctionsServiceClient
// LROClient is used internally to handle longrunning operations.
// It is exposed so that its CallOptions can be modified if required.
// Users should not Close this client.
LROClient *lroauto.OperationsClient
// The call options for this service.
CallOptions *CloudFunctionsCallOptions
// The x-goog-* metadata to be sent with each request.
xGoogMetadata metadata.MD
}
// NewCloudFunctionsClient creates a new cloud functions service client.
//
// A service that application uses to manipulate triggers and functions.
func NewCloudFunctionsClient(ctx context.Context, opts ...option.ClientOption) (*CloudFunctionsClient, error) {
clientOpts := defaultCloudFunctionsClientOptions()
if newCloudFunctionsClientHook != nil {
hookOpts, err := newCloudFunctionsClientHook(ctx, clientHookParams{})
if err != nil {
return nil, err
}
clientOpts = append(clientOpts, hookOpts...)
}
disableDeadlines, err := checkDisableDeadlines()
if err != nil {
return nil, err
}
connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
if err != nil {
return nil, err
}
c := &CloudFunctionsClient{
connPool: connPool,
disableDeadlines: disableDeadlines,
CallOptions: defaultCloudFunctionsCallOptions(),
cloudFunctionsClient: functionspb.NewCloudFunctionsServiceClient(connPool),
}
c.setGoogleClientInfo()
c.LROClient, err = lroauto.NewOperationsClient(ctx, gtransport.WithConnPool(connPool))
if err != nil {
// This error "should not happen", since we are just reusing old connection pool
// and never actually need to dial.
// If this does happen, we could leak connp. However, we cannot close conn:
// If the user invoked the constructor with option.WithGRPCConn,
// we would close a connection that's still in use.
// TODO: investigate error conditions.
return nil, err
}
return c, nil
}
// Connection returns a connection to the API service.
//
// Deprecated.
func (c *CloudFunctionsClient) Connection() *grpc.ClientConn {
return c.connPool.Conn()
}
// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *CloudFunctionsClient) Close() error {
return c.connPool.Close()
}
// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *CloudFunctionsClient) setGoogleClientInfo(keyval ...string) {
kv := append([]string{"gl-go", versionGo()}, keyval...)
kv = append(kv, "gapic", versionClient, "gax", gax.Version, "grpc", grpc.Version)
c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}
// ListFunctions returns a list of functions that belong to the requested project.
func (c *CloudFunctionsClient) ListFunctions(ctx context.Context, req *functionspb.ListFunctionsRequest, opts ...gax.CallOption) *CloudFunctionIterator {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.ListFunctions[0:len(c.CallOptions.ListFunctions):len(c.CallOptions.ListFunctions)], opts...)
it := &CloudFunctionIterator{}
req = proto.Clone(req).(*functionspb.ListFunctionsRequest)
it.InternalFetch = func(pageSize int, pageToken string) ([]*functionspb.CloudFunction, string, error) {
var resp *functionspb.ListFunctionsResponse
req.PageToken = pageToken
if pageSize > math.MaxInt32 {
req.PageSize = math.MaxInt32
} else {
req.PageSize = int32(pageSize)
}
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.ListFunctions(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, "", err
}
it.Response = resp
return resp.GetFunctions(), resp.GetNextPageToken(), nil
}
fetch := func(pageSize int, pageToken string) (string, error) {
items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
if err != nil {
return "", err
}
it.items = append(it.items, items...)
return nextPageToken, nil
}
it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
it.pageInfo.MaxSize = int(req.GetPageSize())
it.pageInfo.Token = req.GetPageToken()
return it
}
// GetFunction returns a function with the given name from the requested project.
func (c *CloudFunctionsClient) GetFunction(ctx context.Context, req *functionspb.GetFunctionRequest, opts ...gax.CallOption) (*functionspb.CloudFunction, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.GetFunction[0:len(c.CallOptions.GetFunction):len(c.CallOptions.GetFunction)], opts...)
var resp *functionspb.CloudFunction
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.GetFunction(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// CreateFunction creates a new function. If a function with the given name already exists in
// the specified project, the long running operation will return
// ALREADY_EXISTS error.
func (c *CloudFunctionsClient) CreateFunction(ctx context.Context, req *functionspb.CreateFunctionRequest, opts ...gax.CallOption) (*CreateFunctionOperation, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "location", url.QueryEscape(req.GetLocation())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.CreateFunction[0:len(c.CallOptions.CreateFunction):len(c.CallOptions.CreateFunction)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.CreateFunction(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &CreateFunctionOperation{
lro: longrunning.InternalNewOperation(c.LROClient, resp),
}, nil
}
// UpdateFunction updates existing function.
func (c *CloudFunctionsClient) UpdateFunction(ctx context.Context, req *functionspb.UpdateFunctionRequest, opts ...gax.CallOption) (*UpdateFunctionOperation, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "function.name", url.QueryEscape(req.GetFunction().GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.UpdateFunction[0:len(c.CallOptions.UpdateFunction):len(c.CallOptions.UpdateFunction)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.UpdateFunction(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &UpdateFunctionOperation{
lro: longrunning.InternalNewOperation(c.LROClient, resp),
}, nil
}
// DeleteFunction deletes a function with the given name from the specified project. If the
// given function is used by some trigger, the trigger will be updated to
// remove this function.
func (c *CloudFunctionsClient) DeleteFunction(ctx context.Context, req *functionspb.DeleteFunctionRequest, opts ...gax.CallOption) (*DeleteFunctionOperation, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.DeleteFunction[0:len(c.CallOptions.DeleteFunction):len(c.CallOptions.DeleteFunction)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.DeleteFunction(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &DeleteFunctionOperation{
lro: longrunning.InternalNewOperation(c.LROClient, resp),
}, nil
}
// CallFunction synchronously invokes a deployed Cloud Function. To be used for testing
// purposes as very limited traffic is allowed. For more information on
// the actual limits, refer to
// Rate Limits (at https://cloud.google.com/functions/quotas#rate_limits).
func (c *CloudFunctionsClient) CallFunction(ctx context.Context, req *functionspb.CallFunctionRequest, opts ...gax.CallOption) (*functionspb.CallFunctionResponse, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.CallFunction[0:len(c.CallOptions.CallFunction):len(c.CallOptions.CallFunction)], opts...)
var resp *functionspb.CallFunctionResponse
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.CallFunction(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// GenerateUploadUrl returns a signed URL for uploading a function source code.
// For more information about the signed URL usage see:
// https://cloud.google.com/storage/docs/access-control/signed-urls (at https://cloud.google.com/storage/docs/access-control/signed-urls).
// Once the function source code upload is complete, the used signed
// URL should be provided in CreateFunction or UpdateFunction request
// as a reference to the function source code.
//
// When uploading source code to the generated signed URL, please follow
// these restrictions:
//
// Source file type should be a zip file.
//
// Source file size should not exceed 100MB limit.
//
// No credentials should be attached - the signed URLs provide access to the
// target bucket using internal service identity; if credentials were
// attached, the identity from the credentials would be used, but that
// identity does not have permissions to upload files to the URL.
//
// When making a HTTP PUT request, these two headers need to be specified:
//
// content-type: application/zip
//
// x-goog-content-length-range: 0,104857600
//
// And this header SHOULD NOT be specified:
//
// Authorization: Bearer YOUR_TOKEN
func (c *CloudFunctionsClient) GenerateUploadUrl(ctx context.Context, req *functionspb.GenerateUploadUrlRequest, opts ...gax.CallOption) (*functionspb.GenerateUploadUrlResponse, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.GenerateUploadUrl[0:len(c.CallOptions.GenerateUploadUrl):len(c.CallOptions.GenerateUploadUrl)], opts...)
var resp *functionspb.GenerateUploadUrlResponse
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.GenerateUploadUrl(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// GenerateDownloadUrl returns a signed URL for downloading deployed function source code.
// The URL is only valid for a limited period and should be used within
// minutes after generation.
// For more information about the signed URL usage see:
// https://cloud.google.com/storage/docs/access-control/signed-urls (at https://cloud.google.com/storage/docs/access-control/signed-urls)
func (c *CloudFunctionsClient) GenerateDownloadUrl(ctx context.Context, req *functionspb.GenerateDownloadUrlRequest, opts ...gax.CallOption) (*functionspb.GenerateDownloadUrlResponse, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.GenerateDownloadUrl[0:len(c.CallOptions.GenerateDownloadUrl):len(c.CallOptions.GenerateDownloadUrl)], opts...)
var resp *functionspb.GenerateDownloadUrlResponse
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.GenerateDownloadUrl(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// SetIamPolicy sets the IAM access control policy on the specified function.
// Replaces any existing policy.
func (c *CloudFunctionsClient) SetIamPolicy(ctx context.Context, req *iampb.SetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.SetIamPolicy[0:len(c.CallOptions.SetIamPolicy):len(c.CallOptions.SetIamPolicy)], opts...)
var resp *iampb.Policy
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.SetIamPolicy(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// GetIamPolicy gets the IAM access control policy for a function.
// Returns an empty policy if the function exists and does not have a policy
// set.
func (c *CloudFunctionsClient) GetIamPolicy(ctx context.Context, req *iampb.GetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.GetIamPolicy[0:len(c.CallOptions.GetIamPolicy):len(c.CallOptions.GetIamPolicy)], opts...)
var resp *iampb.Policy
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.GetIamPolicy(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// TestIamPermissions tests the specified permissions against the IAM access control policy
// for a function.
// If the function does not exist, this will return an empty set of
// permissions, not a NOT_FOUND error.
func (c *CloudFunctionsClient) TestIamPermissions(ctx context.Context, req *iampb.TestIamPermissionsRequest, opts ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.TestIamPermissions[0:len(c.CallOptions.TestIamPermissions):len(c.CallOptions.TestIamPermissions)], opts...)
var resp *iampb.TestIamPermissionsResponse
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.cloudFunctionsClient.TestIamPermissions(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// CreateFunctionOperation manages a long-running operation from CreateFunction.
type CreateFunctionOperation struct {
lro *longrunning.Operation
}
// CreateFunctionOperation returns a new CreateFunctionOperation from a given name.
// The name must be that of a previously created CreateFunctionOperation, possibly from a different process.
func (c *CloudFunctionsClient) CreateFunctionOperation(name string) *CreateFunctionOperation {
return &CreateFunctionOperation{
lro: longrunning.InternalNewOperation(c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *CreateFunctionOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*functionspb.CloudFunction, error) {
var resp functionspb.CloudFunction
if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
return nil, err
}
return &resp, nil
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *CreateFunctionOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*functionspb.CloudFunction, error) {
var resp functionspb.CloudFunction
if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
return nil, err
}
if !op.Done() {
return nil, nil
}
return &resp, nil
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *CreateFunctionOperation) Metadata() (*functionspb.OperationMetadataV1, error) {
var meta functionspb.OperationMetadataV1
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *CreateFunctionOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *CreateFunctionOperation) Name() string {
return op.lro.Name()
}
// DeleteFunctionOperation manages a long-running operation from DeleteFunction.
type DeleteFunctionOperation struct {
lro *longrunning.Operation
}
// DeleteFunctionOperation returns a new DeleteFunctionOperation from a given name.
// The name must be that of a previously created DeleteFunctionOperation, possibly from a different process.
func (c *CloudFunctionsClient) DeleteFunctionOperation(name string) *DeleteFunctionOperation {
return &DeleteFunctionOperation{
lro: longrunning.InternalNewOperation(c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *DeleteFunctionOperation) Wait(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.WaitWithInterval(ctx, nil, time.Minute, opts...)
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *DeleteFunctionOperation) Poll(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.Poll(ctx, nil, opts...)
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *DeleteFunctionOperation) Metadata() (*functionspb.OperationMetadataV1, error) {
var meta functionspb.OperationMetadataV1
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *DeleteFunctionOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *DeleteFunctionOperation) Name() string {
return op.lro.Name()
}
// UpdateFunctionOperation manages a long-running operation from UpdateFunction.
type UpdateFunctionOperation struct {
lro *longrunning.Operation
}
// UpdateFunctionOperation returns a new UpdateFunctionOperation from a given name.
// The name must be that of a previously created UpdateFunctionOperation, possibly from a different process.
func (c *CloudFunctionsClient) UpdateFunctionOperation(name string) *UpdateFunctionOperation {
return &UpdateFunctionOperation{
lro: longrunning.InternalNewOperation(c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *UpdateFunctionOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*functionspb.CloudFunction, error) {
var resp functionspb.CloudFunction
if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
return nil, err
}
return &resp, nil
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *UpdateFunctionOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*functionspb.CloudFunction, error) {
var resp functionspb.CloudFunction
if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
return nil, err
}
if !op.Done() {
return nil, nil
}
return &resp, nil
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *UpdateFunctionOperation) Metadata() (*functionspb.OperationMetadataV1, error) {
var meta functionspb.OperationMetadataV1
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *UpdateFunctionOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *UpdateFunctionOperation) Name() string {
return op.lro.Name()
}
// CloudFunctionIterator manages a stream of *functionspb.CloudFunction.
type CloudFunctionIterator struct {
items []*functionspb.CloudFunction
pageInfo *iterator.PageInfo
nextFunc func() error
// Response is the raw response for the current page.
// It must be cast to the RPC response type.
// Calling Next() or InternalFetch() updates this value.
Response interface{}
// InternalFetch is for use by the Google Cloud Libraries only.
// It is not part of the stable interface of this package.
//
// InternalFetch returns results from a single call to the underlying RPC.
// The number of results is no greater than pageSize.
// If there are no more results, nextPageToken is empty and err is nil.
InternalFetch func(pageSize int, pageToken string) (results []*functionspb.CloudFunction, nextPageToken string, err error)
}
// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *CloudFunctionIterator) PageInfo() *iterator.PageInfo {
return it.pageInfo
}
// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *CloudFunctionIterator) Next() (*functionspb.CloudFunction, error) {
var item *functionspb.CloudFunction
if err := it.nextFunc(); err != nil {
return item, err
}
item = it.items[0]
it.items = it.items[1:]
return item, nil
}
func (it *CloudFunctionIterator) bufLen() int {
return len(it.items)
}
func (it *CloudFunctionIterator) takeBuf() interface{} {
b := it.items
it.items = nil
return b
}