github.com/aavshr/aws-sdk-go@v1.41.3/private/protocol/query/unmarshal_error.go (about)

     1  package query
     2  
     3  import (
     4  	"encoding/xml"
     5  	"fmt"
     6  
     7  	"github.com/aavshr/aws-sdk-go/aws/awserr"
     8  	"github.com/aavshr/aws-sdk-go/aws/request"
     9  	"github.com/aavshr/aws-sdk-go/private/protocol/xml/xmlutil"
    10  )
    11  
    12  // UnmarshalErrorHandler is a name request handler to unmarshal request errors
    13  var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.query.UnmarshalError", Fn: UnmarshalError}
    14  
    15  type xmlErrorResponse struct {
    16  	Code      string `xml:"Error>Code"`
    17  	Message   string `xml:"Error>Message"`
    18  	RequestID string `xml:"RequestId"`
    19  }
    20  
    21  type xmlResponseError struct {
    22  	xmlErrorResponse
    23  }
    24  
    25  func (e *xmlResponseError) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
    26  	const svcUnavailableTagName = "ServiceUnavailableException"
    27  	const errorResponseTagName = "ErrorResponse"
    28  
    29  	switch start.Name.Local {
    30  	case svcUnavailableTagName:
    31  		e.Code = svcUnavailableTagName
    32  		e.Message = "service is unavailable"
    33  		return d.Skip()
    34  
    35  	case errorResponseTagName:
    36  		return d.DecodeElement(&e.xmlErrorResponse, &start)
    37  
    38  	default:
    39  		return fmt.Errorf("unknown error response tag, %v", start)
    40  	}
    41  }
    42  
    43  // UnmarshalError unmarshals an error response for an AWS Query service.
    44  func UnmarshalError(r *request.Request) {
    45  	defer r.HTTPResponse.Body.Close()
    46  
    47  	var respErr xmlResponseError
    48  	err := xmlutil.UnmarshalXMLError(&respErr, r.HTTPResponse.Body)
    49  	if err != nil {
    50  		r.Error = awserr.NewRequestFailure(
    51  			awserr.New(request.ErrCodeSerialization,
    52  				"failed to unmarshal error message", err),
    53  			r.HTTPResponse.StatusCode,
    54  			r.RequestID,
    55  		)
    56  		return
    57  	}
    58  
    59  	reqID := respErr.RequestID
    60  	if len(reqID) == 0 {
    61  		reqID = r.RequestID
    62  	}
    63  
    64  	r.Error = awserr.NewRequestFailure(
    65  		awserr.New(respErr.Code, respErr.Message, nil),
    66  		r.HTTPResponse.StatusCode,
    67  		reqID,
    68  	)
    69  }