mz_storage/decode/
avro.rs

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1// Copyright Materialize, Inc. and contributors. All rights reserved.
2//
3// Use of this software is governed by the Business Source License
4// included in the LICENSE file.
5//
6// As of the Change Date specified in that file, in accordance with
7// the Business Source License, use of this software will be governed
8// by the Apache License, Version 2.0.
9
10use mz_interchange::avro::Decoder;
11use mz_ore::error::ErrorExt;
12use mz_repr::Row;
13use mz_storage_types::errors::DecodeErrorKind;
14
15#[derive(Debug)]
16pub struct AvroDecoderState {
17    decoder: Decoder,
18    events_success: i64,
19}
20
21impl AvroDecoderState {
22    pub fn new(
23        value_schema: &str,
24        ccsr_client: Option<mz_ccsr::Client>,
25        debug_name: String,
26        confluent_wire_format: bool,
27    ) -> Result<Self, anyhow::Error> {
28        Ok(AvroDecoderState {
29            decoder: Decoder::new(value_schema, ccsr_client, debug_name, confluent_wire_format)?,
30            events_success: 0,
31        })
32    }
33
34    pub async fn decode(
35        &mut self,
36        bytes: &mut &[u8],
37    ) -> Result<Result<Option<Row>, DecodeErrorKind>, anyhow::Error> {
38        let result = match self.decoder.decode(bytes).await? {
39            Ok(row) => {
40                self.events_success += 1;
41                Ok(Some(row))
42            }
43            Err(err) => Err(DecodeErrorKind::Text(
44                format!("avro deserialization error: {}", err.display_with_causes()).into(),
45            )),
46        };
47        Ok(result)
48    }
49}
mz_storage/decode/avro.rs

mz_storage/decode/
avro.rs
