Enum OutputError 

pub enum OutputError {
    IoError {
        path: PathBuf,
        source: Error,
    },
    SerializationError {
        entity: String,
        message: String,
    },
    SchemaError {
        file: String,
        column: String,
        message: String,
    },
    ManifestError {
        manifest_type: String,
        message: String,
    },
}

Errors that can occur during output writing operations.

Examples

use cobre_io::OutputError;
use std::path::PathBuf;

let err = OutputError::SchemaError {
    file: "convergence.parquet".to_string(),
    column: "iteration".to_string(),
    message: "column type mismatch".to_string(),
};
assert!(err.to_string().contains("convergence.parquet"));
assert!(err.to_string().contains("iteration"));

Variants

IoError

Filesystem I/O failure (read or write) — the variant is shared by the checkpoint reader and the output writers, so the wording is direction-neutral.

Fields

path: PathBuf

Path to the file that could not be accessed.

source: Error

Underlying I/O error.

SerializationError

Arrow/Parquet encoding failure.

Fields

entity: String

Name of the entity collection (e.g., "hydros").

message: String

Human-readable error description.

SchemaError

Parquet schema validation failure.

Fields

file: String

Name of the Parquet file being validated.

column: String

Name of the column that failed validation.

message: String

Human-readable error description.

ManifestError

Manifest construction failure.

Fields

manifest_type: String

Type of manifest being constructed.

message: String

Human-readable error description.

Implementations

impl OutputError

pub fn io(path: impl AsRef<Path>, source: Error) -> Self

Construct an OutputError::IoError from a path and source error.

Examples

use cobre_io::OutputError;
use std::io;

let io_err = io::Error::new(io::ErrorKind::NotFound, "no such file");
let err = OutputError::io("simulation/costs/data.parquet", io_err);
assert!(err.to_string().contains("simulation/costs/data.parquet"));

pub fn serialization( entity: impl Into<String>, message: impl Into<String>, ) -> Self

Construct an OutputError::SerializationError with entity context and a message.

Examples

use cobre_io::OutputError;

let err = OutputError::serialization("hydros", "unsupported field type");
assert!(err.to_string().contains("hydros"));
assert!(err.to_string().contains("unsupported field type"));

Trait Implementations

impl Debug for OutputError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for OutputError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for OutputError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.