Files
kata-containers/vendor/github.com/uber/jaeger-client-go/thrift-gen/sampling/samplingmanager.go
James O. D. Hunt 3a1bbd0271 tracing: Add initial opentracing support
Add initial support for opentracing by using the `jaeger` package.
Since opentracing uses the `context` package, add a `context.Context`
as the first parameter to all the functions that we might want to
trace. Trace "spans" (trace points) are then added by extracting the
trace details from the specified context parameter.

Notes:

- Although the tracer is created in `main()`, the "root span"
  (aka the first trace point) is not added until `beforeSubcommands()`.

  This is by design and is a compromise: by delaying the creation of the
  root span, the spans become much more readable since using the web-based
  JaegerUI, you will see traces like this:

  ```
  kata-runtime: kata-runtime create
  ------------  -------------------
       ^                ^
       |                |
  Trace name        First span name
                    (which clearly shows the CLI command that was run)
  ```

  Creating the span earlier means it is necessary to expand 'n' spans in
  the UI before you get to see the name of the CLI command that was run.
  In adding support, this became very tedious, hence my design decision to
  defer the creation of the root span until after signal handling has been
  setup and after CLI options have been parsed, but still very early in
  the code path.

  - At this stage, the tracing stops at the `virtcontainers` call
  boundary.

- Tracing is "always on" as there doesn't appear to be a way to toggle
  it. However, its resolves to a "nop" unless the tracer can talk to a
  jaeger agent.

Note that this commit required a bit of rework to `beforeSubcommands()`
to reduce the cyclomatic complexity.

Fixes #557.

Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
2018-08-10 16:13:48 +01:00

411 lines
12 KiB
Go

// Autogenerated by Thrift Compiler (0.9.3)
// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
package sampling
import (
"bytes"
"fmt"
"github.com/uber/jaeger-client-go/thrift"
)
// (needed to ensure safety because of naive import list construction.)
var _ = thrift.ZERO
var _ = fmt.Printf
var _ = bytes.Equal
type SamplingManager interface {
// Parameters:
// - ServiceName
GetSamplingStrategy(serviceName string) (r *SamplingStrategyResponse, err error)
}
type SamplingManagerClient struct {
Transport thrift.TTransport
ProtocolFactory thrift.TProtocolFactory
InputProtocol thrift.TProtocol
OutputProtocol thrift.TProtocol
SeqId int32
}
func NewSamplingManagerClientFactory(t thrift.TTransport, f thrift.TProtocolFactory) *SamplingManagerClient {
return &SamplingManagerClient{Transport: t,
ProtocolFactory: f,
InputProtocol: f.GetProtocol(t),
OutputProtocol: f.GetProtocol(t),
SeqId: 0,
}
}
func NewSamplingManagerClientProtocol(t thrift.TTransport, iprot thrift.TProtocol, oprot thrift.TProtocol) *SamplingManagerClient {
return &SamplingManagerClient{Transport: t,
ProtocolFactory: nil,
InputProtocol: iprot,
OutputProtocol: oprot,
SeqId: 0,
}
}
// Parameters:
// - ServiceName
func (p *SamplingManagerClient) GetSamplingStrategy(serviceName string) (r *SamplingStrategyResponse, err error) {
if err = p.sendGetSamplingStrategy(serviceName); err != nil {
return
}
return p.recvGetSamplingStrategy()
}
func (p *SamplingManagerClient) sendGetSamplingStrategy(serviceName string) (err error) {
oprot := p.OutputProtocol
if oprot == nil {
oprot = p.ProtocolFactory.GetProtocol(p.Transport)
p.OutputProtocol = oprot
}
p.SeqId++
if err = oprot.WriteMessageBegin("getSamplingStrategy", thrift.CALL, p.SeqId); err != nil {
return
}
args := SamplingManagerGetSamplingStrategyArgs{
ServiceName: serviceName,
}
if err = args.Write(oprot); err != nil {
return
}
if err = oprot.WriteMessageEnd(); err != nil {
return
}
return oprot.Flush()
}
func (p *SamplingManagerClient) recvGetSamplingStrategy() (value *SamplingStrategyResponse, err error) {
iprot := p.InputProtocol
if iprot == nil {
iprot = p.ProtocolFactory.GetProtocol(p.Transport)
p.InputProtocol = iprot
}
method, mTypeId, seqId, err := iprot.ReadMessageBegin()
if err != nil {
return
}
if method != "getSamplingStrategy" {
err = thrift.NewTApplicationException(thrift.WRONG_METHOD_NAME, "getSamplingStrategy failed: wrong method name")
return
}
if p.SeqId != seqId {
err = thrift.NewTApplicationException(thrift.BAD_SEQUENCE_ID, "getSamplingStrategy failed: out of sequence response")
return
}
if mTypeId == thrift.EXCEPTION {
error1 := thrift.NewTApplicationException(thrift.UNKNOWN_APPLICATION_EXCEPTION, "Unknown Exception")
var error2 error
error2, err = error1.Read(iprot)
if err != nil {
return
}
if err = iprot.ReadMessageEnd(); err != nil {
return
}
err = error2
return
}
if mTypeId != thrift.REPLY {
err = thrift.NewTApplicationException(thrift.INVALID_MESSAGE_TYPE_EXCEPTION, "getSamplingStrategy failed: invalid message type")
return
}
result := SamplingManagerGetSamplingStrategyResult{}
if err = result.Read(iprot); err != nil {
return
}
if err = iprot.ReadMessageEnd(); err != nil {
return
}
value = result.GetSuccess()
return
}
type SamplingManagerProcessor struct {
processorMap map[string]thrift.TProcessorFunction
handler SamplingManager
}
func (p *SamplingManagerProcessor) AddToProcessorMap(key string, processor thrift.TProcessorFunction) {
p.processorMap[key] = processor
}
func (p *SamplingManagerProcessor) GetProcessorFunction(key string) (processor thrift.TProcessorFunction, ok bool) {
processor, ok = p.processorMap[key]
return processor, ok
}
func (p *SamplingManagerProcessor) ProcessorMap() map[string]thrift.TProcessorFunction {
return p.processorMap
}
func NewSamplingManagerProcessor(handler SamplingManager) *SamplingManagerProcessor {
self3 := &SamplingManagerProcessor{handler: handler, processorMap: make(map[string]thrift.TProcessorFunction)}
self3.processorMap["getSamplingStrategy"] = &samplingManagerProcessorGetSamplingStrategy{handler: handler}
return self3
}
func (p *SamplingManagerProcessor) Process(iprot, oprot thrift.TProtocol) (success bool, err thrift.TException) {
name, _, seqId, err := iprot.ReadMessageBegin()
if err != nil {
return false, err
}
if processor, ok := p.GetProcessorFunction(name); ok {
return processor.Process(seqId, iprot, oprot)
}
iprot.Skip(thrift.STRUCT)
iprot.ReadMessageEnd()
x4 := thrift.NewTApplicationException(thrift.UNKNOWN_METHOD, "Unknown function "+name)
oprot.WriteMessageBegin(name, thrift.EXCEPTION, seqId)
x4.Write(oprot)
oprot.WriteMessageEnd()
oprot.Flush()
return false, x4
}
type samplingManagerProcessorGetSamplingStrategy struct {
handler SamplingManager
}
func (p *samplingManagerProcessorGetSamplingStrategy) Process(seqId int32, iprot, oprot thrift.TProtocol) (success bool, err thrift.TException) {
args := SamplingManagerGetSamplingStrategyArgs{}
if err = args.Read(iprot); err != nil {
iprot.ReadMessageEnd()
x := thrift.NewTApplicationException(thrift.PROTOCOL_ERROR, err.Error())
oprot.WriteMessageBegin("getSamplingStrategy", thrift.EXCEPTION, seqId)
x.Write(oprot)
oprot.WriteMessageEnd()
oprot.Flush()
return false, err
}
iprot.ReadMessageEnd()
result := SamplingManagerGetSamplingStrategyResult{}
var retval *SamplingStrategyResponse
var err2 error
if retval, err2 = p.handler.GetSamplingStrategy(args.ServiceName); err2 != nil {
x := thrift.NewTApplicationException(thrift.INTERNAL_ERROR, "Internal error processing getSamplingStrategy: "+err2.Error())
oprot.WriteMessageBegin("getSamplingStrategy", thrift.EXCEPTION, seqId)
x.Write(oprot)
oprot.WriteMessageEnd()
oprot.Flush()
return true, err2
} else {
result.Success = retval
}
if err2 = oprot.WriteMessageBegin("getSamplingStrategy", thrift.REPLY, seqId); err2 != nil {
err = err2
}
if err2 = result.Write(oprot); err == nil && err2 != nil {
err = err2
}
if err2 = oprot.WriteMessageEnd(); err == nil && err2 != nil {
err = err2
}
if err2 = oprot.Flush(); err == nil && err2 != nil {
err = err2
}
if err != nil {
return
}
return true, err
}
// HELPER FUNCTIONS AND STRUCTURES
// Attributes:
// - ServiceName
type SamplingManagerGetSamplingStrategyArgs struct {
ServiceName string `thrift:"serviceName,1" json:"serviceName"`
}
func NewSamplingManagerGetSamplingStrategyArgs() *SamplingManagerGetSamplingStrategyArgs {
return &SamplingManagerGetSamplingStrategyArgs{}
}
func (p *SamplingManagerGetSamplingStrategyArgs) GetServiceName() string {
return p.ServiceName
}
func (p *SamplingManagerGetSamplingStrategyArgs) Read(iprot thrift.TProtocol) error {
if _, err := iprot.ReadStructBegin(); err != nil {
return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
}
for {
_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
if err != nil {
return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
}
if fieldTypeId == thrift.STOP {
break
}
switch fieldId {
case 1:
if err := p.readField1(iprot); err != nil {
return err
}
default:
if err := iprot.Skip(fieldTypeId); err != nil {
return err
}
}
if err := iprot.ReadFieldEnd(); err != nil {
return err
}
}
if err := iprot.ReadStructEnd(); err != nil {
return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
}
return nil
}
func (p *SamplingManagerGetSamplingStrategyArgs) readField1(iprot thrift.TProtocol) error {
if v, err := iprot.ReadString(); err != nil {
return thrift.PrependError("error reading field 1: ", err)
} else {
p.ServiceName = v
}
return nil
}
func (p *SamplingManagerGetSamplingStrategyArgs) Write(oprot thrift.TProtocol) error {
if err := oprot.WriteStructBegin("getSamplingStrategy_args"); err != nil {
return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
}
if err := p.writeField1(oprot); err != nil {
return err
}
if err := oprot.WriteFieldStop(); err != nil {
return thrift.PrependError("write field stop error: ", err)
}
if err := oprot.WriteStructEnd(); err != nil {
return thrift.PrependError("write struct stop error: ", err)
}
return nil
}
func (p *SamplingManagerGetSamplingStrategyArgs) writeField1(oprot thrift.TProtocol) (err error) {
if err := oprot.WriteFieldBegin("serviceName", thrift.STRING, 1); err != nil {
return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:serviceName: ", p), err)
}
if err := oprot.WriteString(string(p.ServiceName)); err != nil {
return thrift.PrependError(fmt.Sprintf("%T.serviceName (1) field write error: ", p), err)
}
if err := oprot.WriteFieldEnd(); err != nil {
return thrift.PrependError(fmt.Sprintf("%T write field end error 1:serviceName: ", p), err)
}
return err
}
func (p *SamplingManagerGetSamplingStrategyArgs) String() string {
if p == nil {
return "<nil>"
}
return fmt.Sprintf("SamplingManagerGetSamplingStrategyArgs(%+v)", *p)
}
// Attributes:
// - Success
type SamplingManagerGetSamplingStrategyResult struct {
Success *SamplingStrategyResponse `thrift:"success,0" json:"success,omitempty"`
}
func NewSamplingManagerGetSamplingStrategyResult() *SamplingManagerGetSamplingStrategyResult {
return &SamplingManagerGetSamplingStrategyResult{}
}
var SamplingManagerGetSamplingStrategyResult_Success_DEFAULT *SamplingStrategyResponse
func (p *SamplingManagerGetSamplingStrategyResult) GetSuccess() *SamplingStrategyResponse {
if !p.IsSetSuccess() {
return SamplingManagerGetSamplingStrategyResult_Success_DEFAULT
}
return p.Success
}
func (p *SamplingManagerGetSamplingStrategyResult) IsSetSuccess() bool {
return p.Success != nil
}
func (p *SamplingManagerGetSamplingStrategyResult) Read(iprot thrift.TProtocol) error {
if _, err := iprot.ReadStructBegin(); err != nil {
return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
}
for {
_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
if err != nil {
return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
}
if fieldTypeId == thrift.STOP {
break
}
switch fieldId {
case 0:
if err := p.readField0(iprot); err != nil {
return err
}
default:
if err := iprot.Skip(fieldTypeId); err != nil {
return err
}
}
if err := iprot.ReadFieldEnd(); err != nil {
return err
}
}
if err := iprot.ReadStructEnd(); err != nil {
return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
}
return nil
}
func (p *SamplingManagerGetSamplingStrategyResult) readField0(iprot thrift.TProtocol) error {
p.Success = &SamplingStrategyResponse{}
if err := p.Success.Read(iprot); err != nil {
return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", p.Success), err)
}
return nil
}
func (p *SamplingManagerGetSamplingStrategyResult) Write(oprot thrift.TProtocol) error {
if err := oprot.WriteStructBegin("getSamplingStrategy_result"); err != nil {
return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
}
if err := p.writeField0(oprot); err != nil {
return err
}
if err := oprot.WriteFieldStop(); err != nil {
return thrift.PrependError("write field stop error: ", err)
}
if err := oprot.WriteStructEnd(); err != nil {
return thrift.PrependError("write struct stop error: ", err)
}
return nil
}
func (p *SamplingManagerGetSamplingStrategyResult) writeField0(oprot thrift.TProtocol) (err error) {
if p.IsSetSuccess() {
if err := oprot.WriteFieldBegin("success", thrift.STRUCT, 0); err != nil {
return thrift.PrependError(fmt.Sprintf("%T write field begin error 0:success: ", p), err)
}
if err := p.Success.Write(oprot); err != nil {
return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", p.Success), err)
}
if err := oprot.WriteFieldEnd(); err != nil {
return thrift.PrependError(fmt.Sprintf("%T write field end error 0:success: ", p), err)
}
}
return err
}
func (p *SamplingManagerGetSamplingStrategyResult) String() string {
if p == nil {
return "<nil>"
}
return fmt.Sprintf("SamplingManagerGetSamplingStrategyResult(%+v)", *p)
}