Enum VisualizationError 

pub enum VisualizationError {
    GraphDb(GraphDBError),
    Json(Error),
    Io(Error),
    NoHomeDir,
}

Errors that can occur while generating an HTML graph visualization.

Variants

GraphDb(GraphDBError)

Error returned by the underlying graph database when fetching data.

Json(Error)

JSON serialization failed while embedding graph data into the template.

Io(Error)

Filesystem IO error while writing the HTML file.

NoHomeDir

Neither dirs::home_dir() nor the HOME / USERPROFILE environment variables yielded a valid path, so the default output location cannot be resolved.

Trait Implementations

impl Debug for VisualizationError

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

Formats the value using the given formatter.

impl Display for VisualizationError

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

Formats the value using the given formatter.

impl Error for VisualizationError

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.

impl From<Error> for VisualizationError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for VisualizationError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<GraphDBError> for VisualizationError

fn from(source: GraphDBError) -> Self

Converts to this type from the input type.