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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 package rawdatastore | |
| 6 | |
| 7 import ( | |
| 8 "fmt" | |
| 9 | |
| 10 "github.com/luci/gae/service/info" | |
| 11 "github.com/luci/luci-go/common/errors" | |
| 12 "golang.org/x/net/context" | |
| 13 ) | |
| 14 | |
| 15 type checkFilter struct { | |
| 16 Interface | |
| 17 | |
| 18 aid string | |
| 19 ns string | |
| 20 } | |
| 21 | |
| 22 func (tcf *checkFilter) RunInTransaction(f func(c context.Context) error, opts *
TransactionOptions) error { | |
| 23 if f == nil { | |
| 24 return nil | |
| 25 } | |
| 26 return tcf.Interface.RunInTransaction(f, opts) | |
| 27 } | |
| 28 | |
| 29 func (tcf *checkFilter) Run(q Query, cb RunCB) error { | |
| 30 if q == nil || cb == nil { | |
| 31 return nil | |
| 32 } | |
| 33 return tcf.Interface.Run(q, cb) | |
| 34 } | |
| 35 | |
| 36 func (tcf *checkFilter) GetMulti(keys []Key, cb GetMultiCB) error { | |
| 37 if len(keys) == 0 || cb == nil { | |
| 38 return nil | |
| 39 } | |
| 40 lme := errors.LazyMultiError{Size: len(keys)} | |
| 41 for i, k := range keys { | |
| 42 if KeyIncomplete(k) || !KeyValid(k, true, tcf.aid, tcf.ns) { | |
| 43 lme.Assign(i, ErrInvalidKey) | |
| 44 } | |
| 45 } | |
| 46 if me := lme.Get(); me != nil { | |
| 47 for _, err := range me.(errors.MultiError) { | |
| 48 cb(nil, err) | |
| 49 } | |
| 50 return nil | |
| 51 } | |
| 52 return tcf.Interface.GetMulti(keys, cb) | |
| 53 } | |
| 54 | |
| 55 func (tcf *checkFilter) PutMulti(keys []Key, vals []PropertyLoadSaver, cb PutMul
tiCB) error { | |
| 56 if len(keys) != len(vals) { | |
| 57 return fmt.Errorf("rawdatastore: GetMulti with mismatched keys/v
als lengths (%d/%d)", len(keys), len(vals)) | |
| 58 } | |
| 59 if len(keys) == 0 { | |
| 60 return nil | |
| 61 } | |
| 62 lme := errors.LazyMultiError{Size: len(keys)} | |
| 63 for i, k := range keys { | |
| 64 if KeyIncomplete(k) { | |
| 65 k = NewKey(k.AppID(), k.Namespace(), k.Kind(), "", 1, k.
Parent()) | |
| 66 } | |
| 67 if !KeyValid(k, false, tcf.aid, tcf.ns) { | |
| 68 lme.Assign(i, ErrInvalidKey) | |
| 69 continue | |
| 70 } | |
| 71 v := vals[i] | |
| 72 if v == nil { | |
| 73 if !lme.Assign(i, errors.New("rawdatastore: PutMulti got
nil vals entry")) { | |
| 74 lme.Assign(i, v.Problem()) | |
| 75 } | |
| 76 } | |
| 77 } | |
| 78 if me := lme.Get(); me != nil { | |
| 79 for _, err := range me.(errors.MultiError) { | |
| 80 cb(nil, err) | |
| 81 } | |
| 82 return nil | |
| 83 } | |
| 84 | |
| 85 err := error(nil) | |
| 86 pmVals := make([]PropertyLoadSaver, len(vals)) | |
| 87 for i, val := range vals { | |
| 88 pmVals[i], err = val.Save(true) | |
| 89 lme.Assign(i, err) | |
| 90 } | |
| 91 if me := lme.Get(); me != nil { | |
| 92 for _, err := range me.(errors.MultiError) { | |
| 93 cb(nil, err) | |
| 94 } | |
| 95 return nil | |
| 96 } | |
| 97 | |
| 98 return tcf.Interface.PutMulti(keys, pmVals, cb) | |
| 99 } | |
| 100 | |
| 101 func (tcf *checkFilter) DeleteMulti(keys []Key, cb DeleteMultiCB) error { | |
| 102 if len(keys) == 0 { | |
| 103 return nil | |
| 104 } | |
| 105 lme := errors.LazyMultiError{Size: len(keys)} | |
| 106 for i, k := range keys { | |
| 107 if KeyIncomplete(k) || !KeyValid(k, false, tcf.aid, tcf.ns) { | |
| 108 lme.Assign(i, ErrInvalidKey) | |
| 109 } | |
| 110 } | |
| 111 if me := lme.Get(); me != nil { | |
| 112 for _, err := range me.(errors.MultiError) { | |
| 113 cb(err) | |
| 114 } | |
| 115 return nil | |
| 116 } | |
| 117 return tcf.Interface.DeleteMulti(keys, cb) | |
| 118 } | |
| 119 | |
| 120 func applyCheckFilter(c context.Context, i Interface) Interface { | |
| 121 inf := info.Get(c) | |
| 122 return &checkFilter{i, inf.AppID(), inf.GetNamespace()} | |
| 123 } | |
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Chromium Code Reviews
Issue 1259593005:
Add 'user friendly' datastore API. (Closed)
Base URL: https://github.com/luci/gae.git@master