| // Copyright 2019 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 gapic-generator. DO NOT EDIT. |
| |
| package trace |
| |
| import ( |
| "context" |
| "fmt" |
| "math" |
| "net/url" |
| "time" |
| |
| "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/transport" |
| cloudtracepb "google.golang.org/genproto/googleapis/devtools/cloudtrace/v1" |
| "google.golang.org/grpc" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/metadata" |
| ) |
| |
| // CallOptions contains the retry settings for each method of Client. |
| type CallOptions struct { |
| PatchTraces []gax.CallOption |
| GetTrace []gax.CallOption |
| ListTraces []gax.CallOption |
| } |
| |
| func defaultClientOptions() []option.ClientOption { |
| return []option.ClientOption{ |
| option.WithEndpoint("cloudtrace.googleapis.com:443"), |
| option.WithScopes(DefaultAuthScopes()...), |
| option.WithGRPCDialOption(grpc.WithDefaultCallOptions( |
| grpc.MaxCallRecvMsgSize(math.MaxInt32))), |
| } |
| } |
| |
| func defaultCallOptions() *CallOptions { |
| retry := map[[2]string][]gax.CallOption{ |
| {"default", "idempotent"}: { |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.DeadlineExceeded, |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 100 * time.Millisecond, |
| Max: 1000 * time.Millisecond, |
| Multiplier: 1.2, |
| }) |
| }), |
| }, |
| } |
| return &CallOptions{ |
| PatchTraces: retry[[2]string{"default", "idempotent"}], |
| GetTrace: retry[[2]string{"default", "idempotent"}], |
| ListTraces: retry[[2]string{"default", "idempotent"}], |
| } |
| } |
| |
| // Client is a client for interacting with Stackdriver Trace API. |
| // |
| // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls. |
| type Client struct { |
| // The connection to the service. |
| conn *grpc.ClientConn |
| |
| // The gRPC API client. |
| client cloudtracepb.TraceServiceClient |
| |
| // The call options for this service. |
| CallOptions *CallOptions |
| |
| // The x-goog-* metadata to be sent with each request. |
| xGoogMetadata metadata.MD |
| } |
| |
| // NewClient creates a new trace service client. |
| // |
| // This file describes an API for collecting and viewing traces and spans |
| // within a trace. A Trace is a collection of spans corresponding to a single |
| // operation or set of operations for an application. A span is an individual |
| // timed event which forms a node of the trace tree. Spans for a single trace |
| // may span multiple services. |
| func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) { |
| conn, err := transport.DialGRPC(ctx, append(defaultClientOptions(), opts...)...) |
| if err != nil { |
| return nil, err |
| } |
| c := &Client{ |
| conn: conn, |
| CallOptions: defaultCallOptions(), |
| |
| client: cloudtracepb.NewTraceServiceClient(conn), |
| } |
| c.SetGoogleClientInfo() |
| return c, nil |
| } |
| |
| // Connection returns the client's connection to the API service. |
| func (c *Client) Connection() *grpc.ClientConn { |
| return c.conn |
| } |
| |
| // Close closes the connection to the API service. The user should invoke this when |
| // the client is no longer required. |
| func (c *Client) Close() error { |
| return c.conn.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 *Client) 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...)) |
| } |
| |
| // PatchTraces sends new traces to Stackdriver Trace or updates existing traces. If the ID |
| // of a trace that you send matches that of an existing trace, any fields |
| // in the existing trace and its spans are overwritten by the provided values, |
| // and any new fields provided are merged with the existing trace data. If the |
| // ID does not match, a new trace is created. |
| func (c *Client) PatchTraces(ctx context.Context, req *cloudtracepb.PatchTracesRequest, opts ...gax.CallOption) error { |
| md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "project_id", url.QueryEscape(req.GetProjectId()))) |
| ctx = insertMetadata(ctx, c.xGoogMetadata, md) |
| opts = append(c.CallOptions.PatchTraces[0:len(c.CallOptions.PatchTraces):len(c.CallOptions.PatchTraces)], opts...) |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| _, err = c.client.PatchTraces(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| return err |
| } |
| |
| // GetTrace gets a single trace by its ID. |
| func (c *Client) GetTrace(ctx context.Context, req *cloudtracepb.GetTraceRequest, opts ...gax.CallOption) (*cloudtracepb.Trace, error) { |
| ctx = insertMetadata(ctx, c.xGoogMetadata) |
| opts = append(c.CallOptions.GetTrace[0:len(c.CallOptions.GetTrace):len(c.CallOptions.GetTrace)], opts...) |
| var resp *cloudtracepb.Trace |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.GetTrace(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| // ListTraces returns of a list of traces that match the specified filter conditions. |
| func (c *Client) ListTraces(ctx context.Context, req *cloudtracepb.ListTracesRequest, opts ...gax.CallOption) *TraceIterator { |
| md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "project_id", url.QueryEscape(req.GetProjectId()))) |
| ctx = insertMetadata(ctx, c.xGoogMetadata, md) |
| opts = append(c.CallOptions.ListTraces[0:len(c.CallOptions.ListTraces):len(c.CallOptions.ListTraces)], opts...) |
| it := &TraceIterator{} |
| req = proto.Clone(req).(*cloudtracepb.ListTracesRequest) |
| it.InternalFetch = func(pageSize int, pageToken string) ([]*cloudtracepb.Trace, string, error) { |
| var resp *cloudtracepb.ListTracesResponse |
| 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.client.ListTraces(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, "", err |
| } |
| return resp.Traces, resp.NextPageToken, 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.PageSize) |
| it.pageInfo.Token = req.PageToken |
| return it |
| } |
| |
| // TraceIterator manages a stream of *cloudtracepb.Trace. |
| type TraceIterator struct { |
| items []*cloudtracepb.Trace |
| pageInfo *iterator.PageInfo |
| nextFunc func() error |
| |
| // 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 []*cloudtracepb.Trace, nextPageToken string, err error) |
| } |
| |
| // PageInfo supports pagination. See the google.golang.org/api/iterator package for details. |
| func (it *TraceIterator) 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 *TraceIterator) Next() (*cloudtracepb.Trace, error) { |
| var item *cloudtracepb.Trace |
| if err := it.nextFunc(); err != nil { |
| return item, err |
| } |
| item = it.items[0] |
| it.items = it.items[1:] |
| return item, nil |
| } |
| |
| func (it *TraceIterator) bufLen() int { |
| return len(it.items) |
| } |
| |
| func (it *TraceIterator) takeBuf() interface{} { |
| b := it.items |
| it.items = nil |
| return b |
| } |