Coverage Report

Created: 2024-10-13 08:39

/Users/andrewlamb/Software/datafusion/datafusion/common/src/parsers.rs
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// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements.  See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership.  The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License.  You may obtain a copy of the License at
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//
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//   http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied.  See the License for the
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// specific language governing permissions and limitations
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// under the License.
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//! Interval parsing logic
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use std::fmt::Display;
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use std::result;
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use std::str::FromStr;
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use sqlparser::parser::ParserError;
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/// Readable file compression type
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
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pub enum CompressionTypeVariant {
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    /// Gzip-ed file
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    GZIP,
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    /// Bzip2-ed file
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    BZIP2,
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    /// Xz-ed file (liblzma)
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    XZ,
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    /// Zstd-ed file,
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    ZSTD,
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    /// Uncompressed file
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    UNCOMPRESSED,
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}
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impl FromStr for CompressionTypeVariant {
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    type Err = ParserError;
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    fn from_str(s: &str) -> result::Result<Self, ParserError> {
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        let s = s.to_uppercase();
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        match s.as_str() {
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            "GZIP" | "GZ" => Ok(Self::GZIP),
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            "BZIP2" | "BZ2" => Ok(Self::BZIP2),
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            "XZ" => Ok(Self::XZ),
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            "ZST" | "ZSTD" => Ok(Self::ZSTD),
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            "" | "UNCOMPRESSED" => Ok(Self::UNCOMPRESSED),
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            _ => Err(ParserError::ParserError(format!(
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                "Unsupported file compression type {s}"
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            ))),
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        }
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    }
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}
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impl Display for CompressionTypeVariant {
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    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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        let str = match self {
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            Self::GZIP => "GZIP",
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            Self::BZIP2 => "BZIP2",
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            Self::XZ => "XZ",
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            Self::ZSTD => "ZSTD",
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            Self::UNCOMPRESSED => "",
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        };
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        write!(f, "{}", str)
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    }
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}
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impl CompressionTypeVariant {
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    pub const fn is_compressed(&self) -> bool {
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        !matches!(self, &Self::UNCOMPRESSED)
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    }
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}