github.com/streamdal/segmentio-kafka-go@v0.4.47-streamdal/protocol/leavegroup/leavegroup.go (about)

     1  package leavegroup
     2  
     3  import "github.com/segmentio/kafka-go/protocol"
     4  
     5  func init() {
     6  	protocol.Register(&Request{}, &Response{})
     7  }
     8  
     9  type Request struct {
    10  	// We need at least one tagged field to indicate that this is a "flexible" message
    11  	// type.
    12  	_ struct{} `kafka:"min=v4,max=v4,tag"`
    13  
    14  	GroupID  string          `kafka:"min=v0,max=v2|min=v3,max=v4,compact"`
    15  	MemberID string          `kafka:"min=v0,max=v2"`
    16  	Members  []RequestMember `kafka:"min=v3,max=v4"`
    17  }
    18  
    19  func (r *Request) Prepare(apiVersion int16) {
    20  	if apiVersion < 3 {
    21  		if len(r.Members) > 0 {
    22  			r.MemberID = r.Members[0].MemberID
    23  		}
    24  	}
    25  }
    26  
    27  type RequestMember struct {
    28  	// We need at least one tagged field to indicate that this is a "flexible" message
    29  	// type.
    30  	_ struct{} `kafka:"min=v4,max=v4,tag"`
    31  
    32  	MemberID        string `kafka:"min=v3,max=v3|min=v4,max=v4,compact"`
    33  	GroupInstanceID string `kafka:"min=v3,max=v3,nullable|min=v4,max=v4,nullable,compact"`
    34  }
    35  
    36  func (r *Request) ApiKey() protocol.ApiKey { return protocol.LeaveGroup }
    37  
    38  func (r *Request) Group() string { return r.GroupID }
    39  
    40  var (
    41  	_ protocol.GroupMessage    = (*Request)(nil)
    42  	_ protocol.PreparedMessage = (*Request)(nil)
    43  )
    44  
    45  type Response struct {
    46  	// We need at least one tagged field to indicate that this is a "flexible" message
    47  	// type.
    48  	_ struct{} `kafka:"min=v4,max=v4,tag"`
    49  
    50  	ErrorCode      int16            `kafka:"min=v0,max=v4"`
    51  	ThrottleTimeMS int32            `kafka:"min=v1,max=v4"`
    52  	Members        []ResponseMember `kafka:"min=v3,max=v4"`
    53  }
    54  
    55  type ResponseMember struct {
    56  	// We need at least one tagged field to indicate that this is a "flexible" message
    57  	// type.
    58  	_ struct{} `kafka:"min=v4,max=v4,tag"`
    59  
    60  	MemberID        string `kafka:"min=v3,max=v3|min=v4,max=v4,compact"`
    61  	GroupInstanceID string `kafka:"min=v3,max=v3,nullable|min=v4,max=v4,nullable,compact"`
    62  	ErrorCode       int16  `kafka:"min=v3,max=v4"`
    63  }
    64  
    65  func (r *Response) ApiKey() protocol.ApiKey { return protocol.LeaveGroup }