/
cassandra.go
115 lines (97 loc) · 4.23 KB
/
cassandra.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
//
// Copyright (C) 2019-2024 vdaas.org vald team <vald@vdaas.org>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// You may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Package errors provides error types and function
package errors
var (
// ErrCassandraInvalidConsistencyType represents a function to generate an error of consistency type not defined.
ErrCassandraInvalidConsistencyType = func(consistency string) error {
return Errorf("consistetncy type %q is not defined", consistency)
}
// ErrCassandraNotFoundIdentity generates an error of cassandra entry not found.
ErrCassandraNotFoundIdentity = &CassandraNotFoundIdentityError{
err: New("cassandra entry not found"),
}
// ErrCassandraUnavailableIdentity generates an error of cassandra unavailable.
ErrCassandraUnavailableIdentity = &CassandraUnavailableIdentityError{
err: New("cassandra unavailable"),
}
// ErrCassandraUnavailable represents NewErrCassandraUnavailableIdentity.
ErrCassandraUnavailable = ErrCassandraUnavailableIdentity
// ErrCassandraNotFound represents a function to generate an error of cassandra keys not found.
ErrCassandraNotFound = func(keys ...string) error {
switch {
case len(keys) == 1:
return Wrapf(ErrCassandraNotFoundIdentity, "cassandra key '%s' not found", keys[0])
case len(keys) > 1:
return Wrapf(ErrCassandraNotFoundIdentity, "cassandra keys '%v' not found", keys)
default:
return nil
}
}
// ErrCassandraGetOperationFailed represents a function to generate an error of fetch key failed.
ErrCassandraGetOperationFailed = func(key string, err error) error {
return Wrapf(err, "error failed to fetch key (%s)", key)
}
// ErrCassandraSetOperationFailed represents a function to generate an error of set key failed.
ErrCassandraSetOperationFailed = func(key string, err error) error {
return Wrapf(err, "error failed to set key (%s)", key)
}
// ErrCassandraDeleteOperationFailed represents a function to generate an error of delete key failed.
ErrCassandraDeleteOperationFailed = func(key string, err error) error {
return Wrapf(err, "error failed to delete key (%s)", key)
}
// ErrCassandraHostDownDetected represents a function to generate an error of cassandra host down detected.
ErrCassandraHostDownDetected = func(err error, nodeInfo string) error {
return Wrapf(err, "error cassandra host down detected\t%s", nodeInfo)
}
ErrCassandraFailedToCreateSession = func(err error, hosts []string, port int, cqlVersion string) error {
return Wrapf(err, "error cassandra client failed to create session to hosts: %v\tport: %d\tcql_version: %s ", hosts, port, cqlVersion)
}
)
// CassandraNotFoundIdentityError represents custom error for cassandra not found.
type CassandraNotFoundIdentityError struct {
err error
}
// Error returns string of internal error.
func (e *CassandraNotFoundIdentityError) Error() string {
return e.err.Error()
}
// Unwrap returns an internal error.
func (e *CassandraNotFoundIdentityError) Unwrap() error {
return e.err
}
// IsCassandraNotFoundError reports whether any error in err's chain matches CassandraNotFoundError.
func IsCassandraNotFoundError(err error) bool {
target := new(CassandraNotFoundIdentityError)
return As(err, &target)
}
// CassandraUnavailableIdentityError represents custom error for cassandra unavailable.
type CassandraUnavailableIdentityError struct {
err error
}
// Error returns string of internal error.
func (e *CassandraUnavailableIdentityError) Error() string {
return e.err.Error()
}
// Unwrap returns internal error.
func (e *CassandraUnavailableIdentityError) Unwrap() error {
return e.err
}
// IsCassandraUnavailableError reports whether any error in err's chain matches CassandraUnavailableIdentityError.
func IsCassandraUnavailableError(err error) bool {
target := new(CassandraUnavailableIdentityError)
return As(err, &target)
}