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// Copyright 2018 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.
// AUTO-GENERATED CODE. DO NOT EDIT.
package trace
import (
"time"
"cloud.google.com/go/internal/version"
gax "github.com/googleapis/gax-go"
"golang.org/x/net/context"
"google.golang.org/api/option"
"google.golang.org/api/transport"
cloudtracepb "google.golang.org/genproto/googleapis/devtools/cloudtrace/v2"
"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 {
BatchWriteSpans []gax.CallOption
CreateSpan []gax.CallOption
}
func defaultClientOptions() []option.ClientOption {
return []option.ClientOption{
option.WithEndpoint("cloudtrace.googleapis.com:443"),
option.WithScopes(DefaultAuthScopes()...),
}
}
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{
BatchWriteSpans: retry[[2]string{"default", "non_idempotent"}],
CreateSpan: retry[[2]string{"default", "idempotent"}],
}
}
// Client is a client for interacting with Stackdriver Trace API.
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. A single trace may
// contain span(s) from 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", version.Go()}, keyval...)
kv = append(kv, "gapic", version.Repo, "gax", gax.Version, "grpc", grpc.Version)
c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}
// BatchWriteSpans sends new spans to new or existing traces. You cannot update
// existing spans.
func (c *Client) BatchWriteSpans(ctx context.Context, req *cloudtracepb.BatchWriteSpansRequest, opts ...gax.CallOption) error {
ctx = insertMetadata(ctx, c.xGoogMetadata)
opts = append(c.CallOptions.BatchWriteSpans[0:len(c.CallOptions.BatchWriteSpans):len(c.CallOptions.BatchWriteSpans)], opts...)
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
_, err = c.client.BatchWriteSpans(ctx, req, settings.GRPC...)
return err
}, opts...)
return err
}
// CreateSpan creates a new span.
func (c *Client) CreateSpan(ctx context.Context, req *cloudtracepb.Span, opts ...gax.CallOption) (*cloudtracepb.Span, error) {
ctx = insertMetadata(ctx, c.xGoogMetadata)
opts = append(c.CallOptions.CreateSpan[0:len(c.CallOptions.CreateSpan):len(c.CallOptions.CreateSpan)], opts...)
var resp *cloudtracepb.Span
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.client.CreateSpan(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
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