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houseme
2e14b32ccd
* chore: Add copyright and license headers This commit adds the Apache 2.0 license and a copyright notice to the header of all source files. This ensures that the licensing and copyright information is clearly stated within the codebase. * cargo fmt * fix * fmt * fix clippy
93 lines
2.6 KiB
Rust
93 lines
2.6 KiB
Rust
// Copyright 2024 RustFS Team
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::fmt::Display;
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use datafusion::{common::DataFusionError, sql::sqlparser::parser::ParserError};
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use snafu::{Backtrace, Location, Snafu};
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pub mod object_store;
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pub mod query;
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pub mod server;
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pub type QueryResult<T> = Result<T, QueryError>;
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#[derive(Debug, Snafu)]
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#[snafu(visibility(pub))]
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pub enum QueryError {
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#[snafu(display("DataFusion error: {}", source))]
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Datafusion {
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source: Box<DataFusionError>,
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location: Location,
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backtrace: Backtrace,
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},
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#[snafu(display("This feature is not implemented: {}", err))]
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NotImplemented { err: String },
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#[snafu(display("Multi-statement not allow, found num:{}, sql:{}", num, sql))]
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MultiStatement { num: usize, sql: String },
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#[snafu(display("Failed to build QueryDispatcher. err: {}", err))]
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BuildQueryDispatcher { err: String },
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#[snafu(display("The query has been canceled"))]
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Cancel,
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#[snafu(display("{}", source))]
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Parser { source: ParserError },
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#[snafu(display("Udf not exists, name:{}.", name))]
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FunctionNotExists { name: String },
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#[snafu(display("Udf already exists, name:{}.", name))]
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FunctionExists { name: String },
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#[snafu(display("Store Error, e:{}.", e))]
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StoreError { e: String },
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}
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impl From<DataFusionError> for QueryError {
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fn from(value: DataFusionError) -> Self {
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match value {
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DataFusionError::External(e) if e.downcast_ref::<QueryError>().is_some() => *e.downcast::<QueryError>().unwrap(),
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v => Self::Datafusion {
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source: Box::new(v),
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location: Default::default(),
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backtrace: Backtrace::capture(),
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},
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}
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}
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}
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct ResolvedTable {
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// path
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table: String,
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}
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impl ResolvedTable {
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pub fn table(&self) -> &str {
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&self.table
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}
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}
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impl Display for ResolvedTable {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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let Self { table } = self;
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write!(f, "{table}")
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}
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}
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