125 lines
3.4 KiB
Go
125 lines
3.4 KiB
Go
package kafka
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import (
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"bufio"
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"time"
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)
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// See http://kafka.apache.org/protocol.html#The_Messages_DeleteTopics
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type deleteTopicsRequestV1 struct {
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// Topics holds the topic names
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Topics []string
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// Timeout holds the time in ms to wait for a topic to be completely deleted
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// on the controller node. Values <= 0 will trigger topic deletion and return
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// immediately.
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Timeout int32
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}
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func (t deleteTopicsRequestV1) size() int32 {
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return sizeofStringArray(t.Topics) +
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sizeofInt32(t.Timeout)
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}
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func (t deleteTopicsRequestV1) writeTo(w *bufio.Writer) {
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writeStringArray(w, t.Topics)
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writeInt32(w, t.Timeout)
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}
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type deleteTopicsResponseV1 struct {
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// ThrottleTimeMS holds the duration in milliseconds for which the request
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// was throttled due to quota violation (Zero if the request did not violate
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// any quota)
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ThrottleTimeMS int32
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// TopicErrorCodes holds per topic error codes
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TopicErrorCodes []deleteTopicsResponseV1TopicErrorCode
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}
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func (t deleteTopicsResponseV1) size() int32 {
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return sizeofInt32(t.ThrottleTimeMS) +
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sizeofArray(len(t.TopicErrorCodes), func(i int) int32 { return t.TopicErrorCodes[i].size() })
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}
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func (t *deleteTopicsResponseV1) readFrom(r *bufio.Reader, size int) (remain int, err error) {
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if remain, err = readInt32(r, size, &t.ThrottleTimeMS); err != nil {
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return
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}
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fn := func(withReader *bufio.Reader, withSize int) (fnRemain int, fnErr error) {
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var item deleteTopicsResponseV1TopicErrorCode
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if fnRemain, fnErr = (&item).readFrom(withReader, withSize); err != nil {
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return
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}
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t.TopicErrorCodes = append(t.TopicErrorCodes, item)
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return
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}
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if remain, err = readArrayWith(r, remain, fn); err != nil {
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return
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}
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return
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}
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func (t deleteTopicsResponseV1) writeTo(w *bufio.Writer) {
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writeInt32(w, t.ThrottleTimeMS)
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writeArray(w, len(t.TopicErrorCodes), func(i int) { t.TopicErrorCodes[i].writeTo(w) })
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}
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type deleteTopicsResponseV1TopicErrorCode struct {
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// Topic holds the topic name
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Topic string
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// ErrorCode holds the error code
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ErrorCode int16
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}
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func (t deleteTopicsResponseV1TopicErrorCode) size() int32 {
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return sizeofString(t.Topic) +
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sizeofInt16(t.ErrorCode)
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}
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func (t *deleteTopicsResponseV1TopicErrorCode) readFrom(r *bufio.Reader, size int) (remain int, err error) {
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if remain, err = readString(r, size, &t.Topic); err != nil {
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return
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}
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if remain, err = readInt16(r, remain, &t.ErrorCode); err != nil {
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return
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}
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return
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}
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func (t deleteTopicsResponseV1TopicErrorCode) writeTo(w *bufio.Writer) {
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writeString(w, t.Topic)
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writeInt16(w, t.ErrorCode)
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}
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// deleteTopics deletes the specified topics.
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//
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// See http://kafka.apache.org/protocol.html#The_Messages_DeleteTopics
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func (c *Conn) deleteTopics(request deleteTopicsRequestV1) (deleteTopicsResponseV1, error) {
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var response deleteTopicsResponseV1
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err := c.writeOperation(
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func(deadline time.Time, id int32) error {
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if request.Timeout == 0 {
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now := time.Now()
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deadline = adjustDeadlineForRTT(deadline, now, defaultRTT)
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request.Timeout = milliseconds(deadlineToTimeout(deadline, now))
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}
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return c.writeRequest(deleteTopicsRequest, v1, id, request)
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},
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func(deadline time.Time, size int) error {
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return expectZeroSize(func() (remain int, err error) {
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return (&response).readFrom(&c.rbuf, size)
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}())
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},
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)
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if err != nil {
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return deleteTopicsResponseV1{}, err
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}
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for _, c := range response.TopicErrorCodes {
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if c.ErrorCode != 0 {
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return response, Error(c.ErrorCode)
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}
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}
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return response, nil
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}
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