use std::fmt::{Display, Formatter};
use api::v1::TableName as PbTableName;
use common_catalog::consts::{DEFAULT_CATALOG_NAME, DEFAULT_SCHEMA_NAME};
use serde::{Deserialize, Serialize};
use snafu::ensure;
use crate::error;
use crate::error::InvalidTableNameSnafu;
use crate::table_reference::TableReference;
#[derive(Debug, Clone, Hash, Eq, PartialEq, Deserialize, Serialize)]
pub struct TableName {
pub catalog_name: String,
pub schema_name: String,
pub table_name: String,
}
impl Display for TableName {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
f.write_str(&common_catalog::format_full_table_name(
&self.catalog_name,
&self.schema_name,
&self.table_name,
))
}
}
impl TableName {
pub fn new(
catalog_name: impl Into<String>,
schema_name: impl Into<String>,
table_name: impl Into<String>,
) -> Self {
Self {
catalog_name: catalog_name.into(),
schema_name: schema_name.into(),
table_name: table_name.into(),
}
}
pub fn table_ref(&self) -> TableReference<'_> {
TableReference {
catalog: &self.catalog_name,
schema: &self.schema_name,
table: &self.table_name,
}
}
}
impl From<TableName> for PbTableName {
fn from(table_name: TableName) -> Self {
Self {
catalog_name: table_name.catalog_name,
schema_name: table_name.schema_name,
table_name: table_name.table_name,
}
}
}
impl From<PbTableName> for TableName {
fn from(table_name: PbTableName) -> Self {
Self {
catalog_name: table_name.catalog_name,
schema_name: table_name.schema_name,
table_name: table_name.table_name,
}
}
}
impl From<TableReference<'_>> for TableName {
fn from(table_ref: TableReference) -> Self {
Self::new(table_ref.catalog, table_ref.schema, table_ref.table)
}
}
impl TryFrom<Vec<String>> for TableName {
type Error = error::Error;
fn try_from(v: Vec<String>) -> Result<Self, Self::Error> {
ensure!(
!v.is_empty() && v.len() <= 3,
InvalidTableNameSnafu {
s: format!("{v:?}")
}
);
let mut v = v.into_iter();
match (v.next(), v.next(), v.next()) {
(Some(catalog_name), Some(schema_name), Some(table_name)) => Ok(Self {
catalog_name,
schema_name,
table_name,
}),
(Some(schema_name), Some(table_name), None) => Ok(Self {
catalog_name: DEFAULT_CATALOG_NAME.to_string(),
schema_name,
table_name,
}),
(Some(table_name), None, None) => Ok(Self {
catalog_name: DEFAULT_CATALOG_NAME.to_string(),
schema_name: DEFAULT_SCHEMA_NAME.to_string(),
table_name,
}),
_ => unreachable!(),
}
}
}