root / src / Ganeti / Query / Job.hs @ 95ee8abb
History | View | Annotate | Download (5.6 kB)
1 |
{-| Implementation of the Ganeti Query2 job queries. |
---|---|
2 |
|
3 |
-} |
4 |
|
5 |
{- |
6 |
|
7 |
Copyright (C) 2012 Google Inc. |
8 |
|
9 |
This program is free software; you can redistribute it and/or modify |
10 |
it under the terms of the GNU General Public License as published by |
11 |
the Free Software Foundation; either version 2 of the License, or |
12 |
(at your option) any later version. |
13 |
|
14 |
This program is distributed in the hope that it will be useful, but |
15 |
WITHOUT ANY WARRANTY; without even the implied warranty of |
16 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
17 |
General Public License for more details. |
18 |
|
19 |
You should have received a copy of the GNU General Public License |
20 |
along with this program; if not, write to the Free Software |
21 |
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
22 |
02110-1301, USA. |
23 |
|
24 |
-} |
25 |
|
26 |
module Ganeti.Query.Job |
27 |
( RuntimeData |
28 |
, fieldsMap |
29 |
, loadRuntimeData |
30 |
, wantArchived |
31 |
) where |
32 |
|
33 |
import qualified Data.Map as Map |
34 |
import qualified Text.JSON as J |
35 |
|
36 |
import Ganeti.BasicTypes |
37 |
import qualified Ganeti.Constants as C |
38 |
import Ganeti.JQueue |
39 |
import Ganeti.Path |
40 |
import Ganeti.Query.Common |
41 |
import Ganeti.Query.Language |
42 |
import Ganeti.Query.Types |
43 |
import Ganeti.Types |
44 |
|
45 |
-- | The runtime data for a job. |
46 |
type RuntimeData = Result (QueuedJob, Bool) |
47 |
|
48 |
-- | Job priority explanation. |
49 |
jobPrioDoc :: String |
50 |
jobPrioDoc = "Current job priority (" ++ show C.opPrioLowest ++ " to " ++ |
51 |
show C.opPrioHighest ++ ")" |
52 |
|
53 |
-- | Timestamp doc. |
54 |
tsDoc :: String -> String |
55 |
tsDoc = (++ " (tuple containing seconds and microseconds)") |
56 |
|
57 |
-- | Wrapper for unavailable job. |
58 |
maybeJob :: (J.JSON a) => |
59 |
(QueuedJob -> a) -> RuntimeData -> JobId -> ResultEntry |
60 |
maybeJob _ (Bad _) _ = rsUnavail |
61 |
maybeJob f (Ok (v, _)) _ = rsNormal $ f v |
62 |
|
63 |
-- | Wrapper for optional fields that should become unavailable. |
64 |
maybeJobOpt :: (J.JSON a) => |
65 |
(QueuedJob -> Maybe a) -> RuntimeData -> JobId -> ResultEntry |
66 |
maybeJobOpt _ (Bad _) _ = rsUnavail |
67 |
maybeJobOpt f (Ok (v, _)) _ = case f v of |
68 |
Nothing -> rsUnavail |
69 |
Just w -> rsNormal w |
70 |
|
71 |
-- | Simple helper for a job getter. |
72 |
jobGetter :: (J.JSON a) => (QueuedJob -> a) -> FieldGetter JobId RuntimeData |
73 |
jobGetter = FieldRuntime . maybeJob |
74 |
|
75 |
-- | Simple helper for a per-opcode getter. |
76 |
opsGetter :: (J.JSON a) => (QueuedOpCode -> a) -> FieldGetter JobId RuntimeData |
77 |
opsGetter f = FieldRuntime $ maybeJob (map f . qjOps) |
78 |
|
79 |
-- | Simple helper for a per-opcode optional field getter. |
80 |
opsOptGetter :: (J.JSON a) => |
81 |
(QueuedOpCode -> Maybe a) -> FieldGetter JobId RuntimeData |
82 |
opsOptGetter f = |
83 |
FieldRuntime $ maybeJob (map (\qo -> case f qo of |
84 |
Nothing -> J.JSNull |
85 |
Just a -> J.showJSON a) . qjOps) |
86 |
|
87 |
-- | Archived field name. |
88 |
archivedField :: String |
89 |
archivedField = "archived" |
90 |
|
91 |
-- | Check whether we should look at archived jobs as well. |
92 |
wantArchived :: [FilterField] -> Bool |
93 |
wantArchived = (archivedField `elem`) |
94 |
|
95 |
-- | List of all node fields. FIXME: QFF_JOB_ID on the id field. |
96 |
jobFields :: FieldList JobId RuntimeData |
97 |
jobFields = |
98 |
[ (FieldDefinition "id" "ID" QFTNumber "Job ID", FieldSimple rsNormal, |
99 |
QffNormal) |
100 |
, (FieldDefinition "status" "Status" QFTText "Job status", |
101 |
jobGetter calcJobStatus, QffNormal) |
102 |
, (FieldDefinition "priority" "Priority" QFTNumber jobPrioDoc, |
103 |
jobGetter calcJobPriority, QffNormal) |
104 |
, (FieldDefinition archivedField "Archived" QFTBool |
105 |
"Whether job is archived", |
106 |
FieldRuntime (\jinfo _ -> case jinfo of |
107 |
Ok (_, archive) -> rsNormal archive |
108 |
_ -> rsUnavail), QffNormal) |
109 |
, (FieldDefinition "ops" "OpCodes" QFTOther "List of all opcodes", |
110 |
opsGetter qoInput, QffNormal) |
111 |
, (FieldDefinition "opresult" "OpCode_result" QFTOther |
112 |
"List of opcodes results", opsGetter qoResult, QffNormal) |
113 |
, (FieldDefinition "opstatus" "OpCode_status" QFTOther |
114 |
"List of opcodes status", opsGetter qoStatus, QffNormal) |
115 |
, (FieldDefinition "oplog" "OpCode_log" QFTOther |
116 |
"List of opcode output logs", opsGetter qoLog, QffNormal) |
117 |
, (FieldDefinition "opstart" "OpCode_start" QFTOther |
118 |
"List of opcode start timestamps (before acquiring locks)", |
119 |
opsOptGetter qoStartTimestamp, QffNormal) |
120 |
, (FieldDefinition "opexec" "OpCode_exec" QFTOther |
121 |
"List of opcode execution start timestamps (after acquiring locks)", |
122 |
opsOptGetter qoExecTimestamp, QffNormal) |
123 |
, (FieldDefinition "opend" "OpCode_end" QFTOther |
124 |
"List of opcode execution end timestamps", |
125 |
opsOptGetter qoEndTimestamp, QffNormal) |
126 |
, (FieldDefinition "oppriority" "OpCode_prio" QFTOther |
127 |
"List of opcode priorities", opsGetter qoPriority, QffNormal) |
128 |
, (FieldDefinition "summary" "Summary" QFTOther |
129 |
"List of per-opcode summaries", |
130 |
opsGetter (extractOpSummary . qoInput), QffNormal) |
131 |
, (FieldDefinition "received_ts" "Received" QFTOther |
132 |
(tsDoc "Timestamp of when job was received"), |
133 |
FieldRuntime (maybeJobOpt qjReceivedTimestamp), QffTimestamp) |
134 |
, (FieldDefinition "start_ts" "Start" QFTOther |
135 |
(tsDoc "Timestamp of job start"), |
136 |
FieldRuntime (maybeJobOpt qjStartTimestamp), QffTimestamp) |
137 |
, (FieldDefinition "end_ts" "End" QFTOther |
138 |
(tsDoc "Timestamp of job end"), |
139 |
FieldRuntime (maybeJobOpt qjEndTimestamp), QffTimestamp) |
140 |
] |
141 |
|
142 |
-- | The node fields map. |
143 |
fieldsMap :: FieldMap JobId RuntimeData |
144 |
fieldsMap = |
145 |
Map.fromList $ map (\v@(f, _, _) -> (fdefName f, v)) jobFields |
146 |
|
147 |
-- | Load the given jobs from disk. |
148 |
loadRuntimeData :: [JobId] -> Bool -> IO [RuntimeData] |
149 |
loadRuntimeData ids archived = do |
150 |
qdir <- queueDir |
151 |
mapM (loadJobFromDisk qdir archived) ids |