arrow_json/reader/
boolean_array.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use std::sync::Arc;
19
20use arrow_array::ArrayRef;
21use arrow_array::builder::BooleanBuilder;
22use arrow_schema::ArrowError;
23
24use crate::reader::tape::{Tape, TapeElement};
25use crate::reader::{ArrayDecoder, DecoderContext};
26
27#[derive(Default)]
28pub struct BooleanArrayDecoder {
29    ignore_type_conflicts: bool,
30}
31impl BooleanArrayDecoder {
32    pub fn new(ctx: &DecoderContext) -> Self {
33        Self {
34            ignore_type_conflicts: ctx.ignore_type_conflicts(),
35        }
36    }
37}
38
39impl ArrayDecoder for BooleanArrayDecoder {
40    fn decode(&mut self, tape: &Tape<'_>, pos: &[u32]) -> Result<ArrayRef, ArrowError> {
41        let mut builder = BooleanBuilder::with_capacity(pos.len());
42        for p in pos {
43            match tape.get(*p) {
44                TapeElement::Null => builder.append_null(),
45                TapeElement::True => builder.append_value(true),
46                TapeElement::False => builder.append_value(false),
47                _ if self.ignore_type_conflicts => builder.append_null(),
48                _ => return Err(tape.error(*p, "boolean")),
49            }
50        }
51
52        Ok(Arc::new(builder.finish()))
53    }
54}
arrow_json/reader/boolean_array.rs

arrow_json/reader/
boolean_array.rs
