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 arrow_array::builder::BooleanBuilder;
19use arrow_array::Array;
20use arrow_data::ArrayData;
21use arrow_schema::ArrowError;
22
23use crate::reader::tape::{Tape, TapeElement};
24use crate::reader::ArrayDecoder;
25
26#[derive(Default)]
27pub struct BooleanArrayDecoder {}
28
29impl ArrayDecoder for BooleanArrayDecoder {
30    fn decode(&mut self, tape: &Tape<'_>, pos: &[u32]) -> Result<ArrayData, ArrowError> {
31        let mut builder = BooleanBuilder::with_capacity(pos.len());
32        for p in pos {
33            match tape.get(*p) {
34                TapeElement::Null => builder.append_null(),
35                TapeElement::True => builder.append_value(true),
36                TapeElement::False => builder.append_value(false),
37                _ => return Err(tape.error(*p, "boolean")),
38            }
39        }
40
41        Ok(builder.finish().into_data())
42    }
43}
arrow_json/reader/boolean_array.rs

arrow_json/reader/
boolean_array.rs
