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|
package aws
import (
"bytes"
"io"
"io/ioutil"
"net/http"
"net/url"
"reflect"
"time"
)
type Request struct {
*Service
Handlers Handlers
Time time.Time
ExpireTime time.Duration
Operation *Operation
HTTPRequest *http.Request
HTTPResponse *http.Response
Body io.ReadSeeker
Params interface{}
Error error
Data interface{}
RequestID string
RetryCount uint
built bool
}
type Operation struct {
Name string
HTTPMethod string
HTTPPath string
}
func NewRequest(service *Service, operation *Operation, params interface{}, data interface{}) *Request {
method := operation.HTTPMethod
if method == "" {
method = "POST"
}
p := operation.HTTPPath
if p == "" {
p = "/"
}
httpReq, _ := http.NewRequest(method, "", nil)
httpReq.URL, _ = url.Parse(service.Endpoint + p)
r := &Request{
Service: service,
Handlers: service.Handlers.copy(),
Time: time.Now(),
ExpireTime: 0,
Operation: operation,
HTTPRequest: httpReq,
Body: nil,
Params: params,
Error: nil,
Data: data,
}
r.SetBufferBody([]byte{})
return r
}
func (r *Request) ParamsFilled() bool {
return r.Params != nil && reflect.ValueOf(r.Params).Elem().IsValid()
}
func (r *Request) DataFilled() bool {
return r.Data != nil && reflect.ValueOf(r.Data).Elem().IsValid()
}
func (r *Request) SetBufferBody(buf []byte) {
r.SetReaderBody(bytes.NewReader(buf))
}
func (r *Request) SetReaderBody(reader io.ReadSeeker) {
r.HTTPRequest.Body = ioutil.NopCloser(reader)
r.Body = reader
}
func (r *Request) Presign(expireTime time.Duration) (string, error) {
r.ExpireTime = expireTime
r.Sign()
if r.Error != nil {
return "", r.Error
} else {
return r.HTTPRequest.URL.String(), nil
}
}
func (r *Request) Build() error {
if !r.built {
r.Error = nil
r.Handlers.Validate.Run(r)
if r.Error != nil {
return r.Error
}
r.Handlers.Build.Run(r)
r.built = true
}
return r.Error
}
func (r *Request) Sign() error {
r.Build()
if r.Error != nil {
return r.Error
}
r.Handlers.Sign.Run(r)
return r.Error
}
func (r *Request) Send() error {
r.Sign()
if r.Error != nil {
return r.Error
}
for {
r.Handlers.Send.Run(r)
if r.Error != nil {
return r.Error
}
r.Handlers.UnmarshalMeta.Run(r)
r.Handlers.ValidateResponse.Run(r)
if r.Error != nil {
r.Handlers.Retry.Run(r)
r.Handlers.AfterRetry.Run(r)
if r.Error != nil {
r.Handlers.UnmarshalError.Run(r)
return r.Error
}
continue
}
r.Handlers.Unmarshal.Run(r)
if r.Error != nil {
return r.Error
}
return nil
}
}
|
