334 lines
8.7 KiB
Rust
334 lines
8.7 KiB
Rust
// Copyright 2016 Mozilla
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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// this file except in compliance with the License. You may obtain a copy of the
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// License at http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed
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// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations under the License.
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#![allow(dead_code)]
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use std; // To refer to std::result::Result.
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use std::collections::BTreeSet;
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use std::error::Error;
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use rusqlite;
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use failure::{
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Backtrace,
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Context,
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Fail,
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};
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+use std::fmt;
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use uuid;
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use edn;
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use core_traits::{Attribute, ValueType};
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use db_traits::errors::DbError;
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use query_algebrizer_traits::errors::AlgebrizerError;
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use query_projector_traits::errors::ProjectorError;
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use query_pull_traits::errors::PullError;
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use sql_traits::errors::SQLError;
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#[cfg(feature = "syncable")]
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use tolstoy_traits::errors::TolstoyError;
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#[cfg(feature = "syncable")]
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use hyper;
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#[cfg(feature = "syncable")]
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use serde_json;
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pub type Result<T> = std::result::Result<T, MentatError>;
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#[derive(Debug)]
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pub struct MentatError(Box<Context<MentatErrorKind>>);
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impl Fail for MentatError {
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#[inline]
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fn cause(&self) -> Option<&Fail> {
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self.0.cause()
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}
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#[inline]
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fn backtrace(&self) -> Option<&Backtrace> {
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self.0.backtrace()
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}
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}
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impl fmt::Display for MentatError {
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#[inline]
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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fmt::Display::fmt(&*self.0, f)
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}
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}
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impl MentatError {
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#[inline]
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pub fn kind(&self) -> &MentatErrorKind {
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&*self.0.get_context()
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}
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}
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impl From<MentatErrorKind> for MentatError {
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#[inline]
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fn from(kind: MentatErrorKind) -> MentatError {
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MentatError(Box::new(Context::new(kind)))
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}
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}
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impl From<Context<MentatErrorKind>> for MentatError {
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#[inline]
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fn from(inner: Context<MentatErrorKind>) -> MentatError {
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MentatError(Box::new(inner))
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}
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}
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#[derive(Debug, Fail)]
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pub enum MentatErrorKind {
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#[fail(display = "bad uuid {}", _0)]
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BadUuid(String),
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#[fail(display = "path {} already exists", _0)]
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PathAlreadyExists(String),
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#[fail(display = "variables {:?} unbound at query execution time", _0)]
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UnboundVariables(BTreeSet<String>),
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#[fail(display = "invalid argument name: '{}'", _0)]
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InvalidArgumentName(String),
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#[fail(display = "unknown attribute: '{}'", _0)]
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UnknownAttribute(String),
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#[fail(display = "invalid vocabulary version")]
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InvalidVocabularyVersion,
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#[fail(
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display = "vocabulary {}/version {} already has attribute {}, and the requested definition differs",
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_0, _1, _2
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)]
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ConflictingAttributeDefinitions(String, u32, String, Attribute, Attribute),
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#[fail(
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display = "existing vocabulary {} too new: wanted version {}, got version {}",
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_0, _1, _2
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)]
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ExistingVocabularyTooNew(String, u32, u32),
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#[fail(display = "core schema: wanted version {}, got version {:?}", _0, _1)]
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UnexpectedCoreSchema(u32, Option<u32>),
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#[fail(display = "Lost the transact() race!")]
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UnexpectedLostTransactRace,
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#[fail(display = "missing core attribute {}", _0)]
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MissingCoreVocabulary(edn::query::Keyword),
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#[fail(display = "schema changed since query was prepared")]
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PreparedQuerySchemaMismatch,
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#[fail(
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display = "provided value of type {} doesn't match attribute value type {}",
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_0, _1
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)]
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ValueTypeMismatch(ValueType, ValueType),
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#[fail(display = "{}", _0)]
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IoError(#[cause] std::io::Error),
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/// We're just not done yet. Message that the feature is recognized but not yet
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/// implemented.
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#[fail(display = "not yet implemented: {}", _0)]
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NotYetImplemented(String),
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// It would be better to capture the underlying `rusqlite::Error`, but that type doesn't
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// implement many useful traits, including `Clone`, `Eq`, and `PartialEq`.
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#[fail(display = "SQL error: {}, cause: {}", _0, _1)]
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RusqliteError(String, String),
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#[fail(display = "{}", _0)]
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EdnParseError(#[cause] edn::ParseError),
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#[fail(display = "{}", _0)]
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DbError(#[cause] DbError),
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#[fail(display = "{}", _0)]
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AlgebrizerError(#[cause] AlgebrizerError),
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#[fail(display = "{}", _0)]
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ProjectorError(#[cause] ProjectorError),
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#[fail(display = "{}", _0)]
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PullError(#[cause] PullError),
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#[fail(display = "{}", _0)]
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SQLError(#[cause] SQLError),
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#[fail(display = "{}", _0)]
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UuidError(#[cause] uuid::Error),
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#[cfg(feature = "syncable")]
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#[fail(display = "{}", _0)]
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TolstoyError(#[cause] TolstoyError),
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#[cfg(feature = "syncable")]
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#[fail(display = "{}", _0)]
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NetworkError(#[cause] hyper::Error),
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#[cfg(feature = "syncable")]
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#[fail(display = "{}", _0)]
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UriError(#[cause] http::uri::InvalidUri),
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#[cfg(feature = "syncable")]
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#[fail(display = "{}", _0)]
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SerializationError(#[cause] serde_json::Error),
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}
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impl From<std::io::Error> for MentatErrorKind {
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fn from(error: std::io::Error) -> MentatErrorKind {
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MentatErrorKind::IoError(error)
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}
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}
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impl From<rusqlite::Error> for MentatErrorKind {
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fn from(error: rusqlite::Error) -> MentatErrorKind {
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MentatErrorKind::RusqliteError(error.to_string())
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}
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}
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impl From<edn::ParseError> for MentatErrorKind {
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fn from(error: edn::ParseError) -> MentatErrorKind {
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MentatErrorKind::EdnParseError(error)
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}
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}
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impl From<mentat_db::DbError> for MentatErrorKind {
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fn from(error: mentat_db::DbError) -> MentatErrorKind {
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MentatErrorKind::DbError(error)
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}
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}
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impl From<mentat_query_algebrizer::AlgebrizerError> for MentatErrorKind {
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fn from(error: mentat_query_algebrizer::AlgebrizerError) -> MentatErrorKind {
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MentatErrorKind::AlgebrizerError(error)
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}
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}
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impl From<mentat_query_projector::ProjectorError> for MentatErrorKind {
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fn from(error: mentat_query_projector::ProjectorError) -> MentatErrorKind {
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MentatErrorKind::ProjectorError(error)
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}
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}
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impl From<mentat_query_pull::PullError> for MentatErrorKind {
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fn from(error: mentat_query_pull::PullError) -> MentatErrorKind {
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MentatErrorKind::PullError(error)
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}
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}
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impl From<mentat_sql::SQLError> for MentatErrorKind {
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fn from(error: mentat_sql::SQLError) -> MentatErrorKind {
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MentatErrorKind::SQLError(error)
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}
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}
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#[cfg(feature = "syncable")]
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impl From<mentat_tolstoy::TolstoyError> for MentatErrorKind {
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fn from(error: mentat_tolstoy::TolstoyError) -> MentatErrorKind {
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MentatErrorKind::TolstoyError(error)
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}
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}
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// XXX reduce dupe if this isn't completely throwaway
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impl From<std::io::Error> for MentatError {
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fn from(error: std::io::Error) -> Self {
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MentatError::from(error).into()
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}
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}
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impl From<rusqlite::Error> for MentatError {
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fn from(error: rusqlite::Error) -> Self {
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let cause = match error.source() {
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Some(e) => e.to_string(),
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None => "".to_string(),
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};
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MentatError::from(error).into()
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}
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}
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impl From<uuid::Error> for MentatError {
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fn from(error: uuid::Error) -> Self {
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MentatError::from(error).into()
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}
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}
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impl From<edn::ParseError> for MentatError {
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fn from(error: edn::ParseError) -> Self {
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MentatError:from(error).into()
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}
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}
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impl From<DbError> for MentatError {
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fn from(error: DbError) -> Self {
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MentatError::from(error).into()
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}
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}
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impl From<AlgebrizerError> for MentatError {
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fn from(error: AlgebrizerError) -> Self {
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MentatError::from(error).into()
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}
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}
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impl From<ProjectorError> for MentatError {
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fn from(error: ProjectorError) -> Self {
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MentatError::from(error).into()
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}
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}
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impl From<PullError> for MentatError {
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fn from(error: PullError) -> Self {
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MentatError::from(error).into()
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}
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}
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impl From<SQLError> for MentatError {
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fn from(error: SQLError) -> Self {
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MentatError::from(error).into()
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}
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}
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#[cfg(feature = "syncable")]
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impl From<TolstoyError> for MentatError {
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fn from(error: TolstoyError) -> Self {
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MentatError::from(error).into()
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}
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}
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#[cfg(feature = "syncable")]
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impl From<serde_json::Error> for MentatError {
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fn from(error: serde_json::Error) -> Self {
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MentatError::from(error).into()
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}
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}
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#[cfg(feature = "syncable")]
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impl From<hyper::Error> for MentatError {
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fn from(error: hyper::Error) -> Self {
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MentatError::from(error).into()
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}
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}
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#[cfg(feature = "syncable")]
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impl From<http::uri::InvalidUri> for MentatError {
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fn from(error: http::uri::InvalidUri) -> Self {
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MentatError::from(error).into()
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}
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}
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