dharmadb/
errors.rs

1use std::fmt::{Debug, Display, Formatter};
2
3#[allow(non_camel_case_types)]
4#[derive(PartialEq)]
5pub enum Errors {
6    DB_PATH_DIRTY,
7    DB_NO_SUCH_KEY,
8    DB_WRITE_FAILED,
9    DB_DELETE_FAILED,
10    DB_INDEX_INITIALIZATION_FAILED,
11    DB_INDEX_UPDATE_FAILED,
12    SSTABLE_CREATION_FAILED,
13    SSTABLE_READ_FAILED,
14    SSTABLE_INVALID_READ_OFFSET,
15    WAL_LOG_CREATION_FAILED,
16    WAL_WRITE_FAILED,
17    WAL_BOOTSTRAP_FAILED,
18    WAL_CLEANUP_FAILED,
19    RECORD_SERIALIZATION_FAILED,
20    RECORD_DESERIALIZATION_FAILED,
21    COMPACTION_CLEANUP_FAILED,
22}
23
24impl Errors {
25    pub fn value(&self) -> &'static str {
26        match self {
27            Errors::DB_PATH_DIRTY => {
28                "Write Ahead log Found at supplied path. Try running \
29            recovery operation to start database."
30            }
31            Errors::DB_NO_SUCH_KEY => "No Such Key found.",
32            Errors::DB_WRITE_FAILED => "Could not write entry to database.",
33            Errors::DB_DELETE_FAILED => "Could not delete entry from database.",
34            Errors::SSTABLE_CREATION_FAILED => "Could not create SSTable on disk.",
35            Errors::SSTABLE_READ_FAILED => "Failed to read SSTable from disk.",
36            Errors::SSTABLE_INVALID_READ_OFFSET => "Invalid read offset supplied to SSTable",
37            Errors::WAL_WRITE_FAILED => "Write Ahead Log write failed.",
38            Errors::WAL_LOG_CREATION_FAILED => {
39                "Failed to create Write Ahead Log during Database startup."
40            }
41            Errors::WAL_BOOTSTRAP_FAILED => {
42                "Could not ingest existing logs to start database. Log files may be corrupted."
43            }
44            Errors::WAL_CLEANUP_FAILED => "Failed to cleanup Write Ahead Log.",
45            Errors::DB_INDEX_INITIALIZATION_FAILED => "Failed to initialize sparse index for DB.",
46            Errors::DB_INDEX_UPDATE_FAILED => {
47                "Failed to update the DB index during memtable flush."
48            }
49            Errors::RECORD_SERIALIZATION_FAILED => "Failed to serialize record.",
50            Errors::RECORD_DESERIALIZATION_FAILED => "Failed to deserialize record.",
51            Errors::COMPACTION_CLEANUP_FAILED => "Compaction cleanup failed.",
52        }
53    }
54}
55
56impl Display for Errors {
57    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
58        write!(f, "{}", self.value())
59    }
60}
61
62impl Debug for Errors {
63    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
64        write!(f, "{}", self.value())
65    }
66}
dharmadb/errors.rs

dharmadb/
errors.rs
