kacrab-protocol 0.2.0

Kafka wire protocol types — generated from upstream message schemas by `kacrab-codegen`.
Documentation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
//! Generated from ProduceRequest.json - DO NOT EDIT
#![allow(
    missing_docs,
    clippy::all,
    clippy::pedantic,
    clippy::nursery,
    clippy::arithmetic_side_effects,
    reason = "Generated protocol modules mirror Kafka's schema shape and intentionally trade \
              hand-written lint style for reproducible wire-code output."
)]
use bytes::{Bytes, BytesMut};

use crate::*;

#[derive(Debug, Clone, PartialEq)]
pub struct ProduceRequestData {
    /// The transactional ID, or null if the producer is not transactional.
    pub transactional_id: Option<KafkaString>,
    /// The number of acknowledgments the producer requires the leader to have received before
    /// considering a request complete. Allowed values: 0 for no acknowledgments, 1 for only the
    /// leader and -1 for the full ISR.
    pub acks: i16,
    /// The timeout to await a response in milliseconds.
    pub timeout_ms: i32,
    /// Each topic to produce to.
    pub topic_data: Vec<TopicProduceData>,
    pub _unknown_tagged_fields: Vec<RawTaggedField>,
}
impl Default for ProduceRequestData {
    fn default() -> Self {
        Self {
            transactional_id: None,
            acks: 0_i16,
            timeout_ms: 0_i32,
            topic_data: Vec::new(),
            _unknown_tagged_fields: Vec::new(),
        }
    }
}
impl ProduceRequestData {
    pub fn with_transactional_id(mut self, value: Option<KafkaString>) -> Self {
        self.transactional_id = value;
        self
    }
    pub fn with_acks(mut self, value: i16) -> Self {
        self.acks = value;
        self
    }
    pub fn with_timeout_ms(mut self, value: i32) -> Self {
        self.timeout_ms = value;
        self
    }
    pub fn with_topic_data(mut self, value: Vec<TopicProduceData>) -> Self {
        self.topic_data = value;
        self
    }
    pub fn read(buf: &mut Bytes, version: i16) -> Result<Self> {
        if version < 3 || version > 13 {
            return Err(UnsupportedVersion::new(0, version).into());
        }
        let transactional_id;
        let acks;
        let timeout_ms;
        let topic_data;
        let mut _unknown_tagged_fields: Vec<RawTaggedField> = Vec::new();
        if version >= 9 {
            transactional_id = read_compact_nullable_string(buf)?;
        } else {
            transactional_id = read_nullable_string(buf)?;
        }
        acks = read_i16(buf)?;
        timeout_ms = read_i32(buf)?;
        if version >= 9 {
            topic_data = {
                let len = read_compact_array_length(buf)?;
                let mut arr = Vec::with_capacity(array_read_capacity(len, (buf).len()));
                for _ in 0..len {
                    arr.push(TopicProduceData::read(buf, version)?);
                }
                arr
            };
        } else {
            topic_data = {
                let len = read_array_length(buf)?;
                let mut arr = Vec::with_capacity(array_read_capacity(len, (buf).len()));
                for _ in 0..len {
                    arr.push(TopicProduceData::read(buf, version)?);
                }
                arr
            };
        }
        if version >= 9 {
            let tagged_fields = read_tagged_fields(buf)?;
            for field in &tagged_fields {
                match field.tag {
                    _ => {
                        _unknown_tagged_fields.push(field.clone());
                    },
                }
            }
        }
        Ok(Self {
            transactional_id,
            acks,
            timeout_ms,
            topic_data,
            _unknown_tagged_fields,
        })
    }
    pub fn write(&self, buf: &mut BytesMut, version: i16) -> Result<()> {
        if version < 3 || version > 13 {
            return Err(UnsupportedVersion::new(0, version).into());
        }
        if version >= 9 {
            write_compact_nullable_string(buf, self.transactional_id.as_ref())?;
        } else {
            write_nullable_string(buf, self.transactional_id.as_ref())?;
        }
        write_i16(buf, self.acks);
        write_i32(buf, self.timeout_ms);
        if version >= 9 {
            write_compact_array_length(buf, self.topic_data.len() as i32);
            for el in &self.topic_data {
                el.write(buf, version)?;
            }
        } else {
            write_array_length(buf, self.topic_data.len() as i32);
            for el in &self.topic_data {
                el.write(buf, version)?;
            }
        }
        if version >= 9 {
            let mut all_tags: Vec<RawTaggedField> = self._unknown_tagged_fields.clone();
            all_tags.sort_by_key(|f| f.tag);
            write_tagged_fields(buf, &all_tags)?;
        }
        Ok(())
    }
    pub fn encoded_len(&self, version: i16) -> Result<usize> {
        if version < 3 || version > 13 {
            return Err(UnsupportedVersion::new(0, version).into());
        }
        let mut len: usize = 0;
        if version >= 9 {
            len += compact_nullable_string_len(self.transactional_id.as_ref())?;
        } else {
            len += nullable_string_len(self.transactional_id.as_ref())?;
        }
        len += 2;
        len += 4;
        if version >= 9 {
            len += compact_array_length_len(self.topic_data.len() as i32);
            for el in &self.topic_data {
                len += el.encoded_len(version)?;
            }
        } else {
            len += array_length_len();
            for el in &self.topic_data {
                len += el.encoded_len(version)?;
            }
        }
        if version >= 9 {
            let mut all_tags: Vec<RawTaggedField> = self._unknown_tagged_fields.clone();
            all_tags.sort_by_key(|f| f.tag);
            len += tagged_fields_len(&all_tags)?;
        }
        Ok(len)
    }
}
#[derive(Debug, Clone, PartialEq)]
pub struct TopicProduceData {
    /// The topic name.
    pub name: KafkaString,
    /// The unique topic ID
    pub topic_id: KafkaUuid,
    /// Each partition to produce to.
    pub partition_data: Vec<PartitionProduceData>,
    pub _unknown_tagged_fields: Vec<RawTaggedField>,
}
impl Default for TopicProduceData {
    fn default() -> Self {
        Self {
            name: KafkaString::default(),
            topic_id: KafkaUuid::ZERO,
            partition_data: Vec::new(),
            _unknown_tagged_fields: Vec::new(),
        }
    }
}
impl TopicProduceData {
    pub fn with_name(mut self, value: KafkaString) -> Self {
        self.name = value;
        self
    }
    pub fn with_topic_id(mut self, value: KafkaUuid) -> Self {
        self.topic_id = value;
        self
    }
    pub fn with_partition_data(mut self, value: Vec<PartitionProduceData>) -> Self {
        self.partition_data = value;
        self
    }
    pub fn read(buf: &mut Bytes, version: i16) -> Result<Self> {
        let mut name = KafkaString::default();
        let mut topic_id = KafkaUuid::ZERO;
        let partition_data;
        let mut _unknown_tagged_fields: Vec<RawTaggedField> = Vec::new();
        if version <= 12 {
            if version >= 9 {
                name = read_compact_string(buf)?;
            } else {
                name = read_string(buf)?;
            }
        }
        if version >= 13 {
            topic_id = read_uuid(buf)?;
        }
        if version >= 9 {
            partition_data = {
                let len = read_compact_array_length(buf)?;
                let mut arr = Vec::with_capacity(array_read_capacity(len, (buf).len()));
                for _ in 0..len {
                    arr.push(PartitionProduceData::read(buf, version)?);
                }
                arr
            };
        } else {
            partition_data = {
                let len = read_array_length(buf)?;
                let mut arr = Vec::with_capacity(array_read_capacity(len, (buf).len()));
                for _ in 0..len {
                    arr.push(PartitionProduceData::read(buf, version)?);
                }
                arr
            };
        }
        if version >= 9 {
            let tagged_fields = read_tagged_fields(buf)?;
            for field in &tagged_fields {
                match field.tag {
                    _ => {
                        _unknown_tagged_fields.push(field.clone());
                    },
                }
            }
        }
        Ok(Self {
            name,
            topic_id,
            partition_data,
            _unknown_tagged_fields,
        })
    }
    pub fn write(&self, buf: &mut BytesMut, version: i16) -> Result<()> {
        if version <= 12 {
            if version >= 9 {
                write_compact_string(buf, &self.name)?;
            } else {
                write_string(buf, &self.name)?;
            }
        } else if self.name != KafkaString::default() {
            return Err(UnsupportedFieldVersion::new(0, "name", version).into());
        }
        if version >= 13 {
            write_uuid(buf, &self.topic_id);
        } else if self.topic_id != KafkaUuid::ZERO {
            return Err(UnsupportedFieldVersion::new(0, "topic_id", version).into());
        }
        if version >= 9 {
            write_compact_array_length(buf, self.partition_data.len() as i32);
            for el in &self.partition_data {
                el.write(buf, version)?;
            }
        } else {
            write_array_length(buf, self.partition_data.len() as i32);
            for el in &self.partition_data {
                el.write(buf, version)?;
            }
        }
        if version >= 9 {
            let mut all_tags: Vec<RawTaggedField> = self._unknown_tagged_fields.clone();
            all_tags.sort_by_key(|f| f.tag);
            write_tagged_fields(buf, &all_tags)?;
        }
        Ok(())
    }
    pub fn encoded_len(&self, version: i16) -> Result<usize> {
        let mut len: usize = 0;
        if version <= 12 {
            if version >= 9 {
                len += compact_string_len(&self.name)?;
            } else {
                len += string_len(&self.name)?;
            }
        } else if self.name != KafkaString::default() {
            return Err(UnsupportedFieldVersion::new(0, "name", version).into());
        }
        if version >= 13 {
            len += 16;
        } else if self.topic_id != KafkaUuid::ZERO {
            return Err(UnsupportedFieldVersion::new(0, "topic_id", version).into());
        }
        if version >= 9 {
            len += compact_array_length_len(self.partition_data.len() as i32);
            for el in &self.partition_data {
                len += el.encoded_len(version)?;
            }
        } else {
            len += array_length_len();
            for el in &self.partition_data {
                len += el.encoded_len(version)?;
            }
        }
        if version >= 9 {
            let mut all_tags: Vec<RawTaggedField> = self._unknown_tagged_fields.clone();
            all_tags.sort_by_key(|f| f.tag);
            len += tagged_fields_len(&all_tags)?;
        }
        Ok(len)
    }
}
#[derive(Debug, Clone, PartialEq)]
pub struct PartitionProduceData {
    /// The partition index.
    pub index: i32,
    /// The record data to be produced.
    pub records: Option<Bytes>,
    pub _unknown_tagged_fields: Vec<RawTaggedField>,
}
impl Default for PartitionProduceData {
    fn default() -> Self {
        Self {
            index: 0_i32,
            records: None,
            _unknown_tagged_fields: Vec::new(),
        }
    }
}
impl PartitionProduceData {
    pub fn with_index(mut self, value: i32) -> Self {
        self.index = value;
        self
    }
    pub fn with_records(mut self, value: Option<Bytes>) -> Self {
        self.records = value;
        self
    }
    pub fn read(buf: &mut Bytes, version: i16) -> Result<Self> {
        let index;
        let records;
        let mut _unknown_tagged_fields: Vec<RawTaggedField> = Vec::new();
        index = read_i32(buf)?;
        if version >= 9 {
            records = read_compact_nullable_bytes(buf)?;
        } else {
            records = read_nullable_bytes(buf)?;
        }
        if version >= 9 {
            let tagged_fields = read_tagged_fields(buf)?;
            for field in &tagged_fields {
                match field.tag {
                    _ => {
                        _unknown_tagged_fields.push(field.clone());
                    },
                }
            }
        }
        Ok(Self {
            index,
            records,
            _unknown_tagged_fields,
        })
    }
    pub fn write(&self, buf: &mut BytesMut, version: i16) -> Result<()> {
        write_i32(buf, self.index);
        if version >= 9 {
            write_compact_nullable_bytes(buf, self.records.as_ref().map(|b| b.as_ref()))?;
        } else {
            write_nullable_bytes(buf, self.records.as_ref().map(|b| b.as_ref()))?;
        }
        if version >= 9 {
            let mut all_tags: Vec<RawTaggedField> = self._unknown_tagged_fields.clone();
            all_tags.sort_by_key(|f| f.tag);
            write_tagged_fields(buf, &all_tags)?;
        }
        Ok(())
    }
    pub fn encoded_len(&self, version: i16) -> Result<usize> {
        let mut len: usize = 0;
        len += 4;
        if version >= 9 {
            len += compact_nullable_bytes_len(self.records.as_ref().map(|b| b.as_ref()))?;
        } else {
            len += nullable_bytes_len(self.records.as_ref().map(|b| b.as_ref()))?;
        }
        if version >= 9 {
            let mut all_tags: Vec<RawTaggedField> = self._unknown_tagged_fields.clone();
            all_tags.sort_by_key(|f| f.tag);
            len += tagged_fields_len(&all_tags)?;
        }
        Ok(len)
    }
}