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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* Copyright (C) 2014 Aaron Seigo <aseigo@kde.org>
* Copyright (C) 2014 Christian Mollekopf <mollekopf@kolabsys.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) version 3, or any
* later version accepted by the membership of KDE e.V. (or its
* successor approved by the membership of KDE e.V.), which shall
* act as a proxy defined in Section 6 of version 3 of the license.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "storage.h"
#include <iostream>
namespace Akonadi2
{
static const char *s_internalPrefix = "__internal";
static const int s_internalPrefixSize = strlen(s_internalPrefix);
void errorHandler(const Storage::Error &error)
{
//TODO: allow this to be turned on / off globally
//TODO: log $SOMEWHERE $SOMEHOW rather than just spit to stderr
std::cout << "Read error in " << error.store.toStdString() << ", code " << error.code << ", message: " << error.message.toStdString() << std::endl;
}
std::function<void(const Storage::Error &error)> Storage::basicErrorHandler()
{
return errorHandler;
}
void Storage::setDefaultErrorHandler(const std::function<void(const Storage::Error &error)> &errorHandler)
{
mErrorHandler = errorHandler;
}
std::function<void(const Storage::Error &error)> Storage::defaultErrorHandler() const
{
if (mErrorHandler) {
return mErrorHandler;
}
return basicErrorHandler();
}
void Storage::setMaxRevision(Akonadi2::Storage::Transaction &transaction, qint64 revision)
{
transaction.openDatabase().write("__internal_maxRevision", QByteArray::number(revision));
}
qint64 Storage::maxRevision(const Akonadi2::Storage::Transaction &transaction)
{
qint64 r = 0;
transaction.openDatabase().scan("__internal_maxRevision", [&](const QByteArray &, const QByteArray &revision) -> bool {
r = revision.toLongLong();
return false;
}, [](const Error &error){
std::cout << "Coultn'd find uid for revision ";
});
return r;
}
QByteArray Storage::getUidFromRevision(const Akonadi2::Storage::Transaction &transaction, qint64 revision)
{
QByteArray uid;
transaction.openDatabase("revisions").scan(QByteArray::number(revision), [&](const QByteArray &, const QByteArray &value) -> bool {
uid = value;
return false;
}, [revision](const Error &error){
std::cout << "Coultn'd find uid for revision " << revision;
});
return uid;
}
QByteArray Storage::getTypeFromRevision(const Akonadi2::Storage::Transaction &transaction, qint64 revision)
{
QByteArray type;
transaction.openDatabase("revisionType").scan(QByteArray::number(revision), [&](const QByteArray &, const QByteArray &value) -> bool {
type = value;
return false;
}, [revision](const Error &error){
std::cout << "Coultn'd find type for revision " << revision;
});
return type;
}
void Storage::recordRevision(Akonadi2::Storage::Transaction &transaction, qint64 revision, const QByteArray &uid, const QByteArray &type)
{
//TODO use integerkeys
transaction.openDatabase("revisions").write(QByteArray::number(revision), uid);
transaction.openDatabase("revisionType").write(QByteArray::number(revision), type);
}
void Storage::removeRevision(Akonadi2::Storage::Transaction &transaction, qint64 revision)
{
transaction.openDatabase("revisions").remove(QByteArray::number(revision));
}
bool Storage::isInternalKey(const char *key)
{
return key && strncmp(key, s_internalPrefix, s_internalPrefixSize) == 0;
}
bool Storage::isInternalKey(void *key, int size)
{
if (size < 1) {
return false;
}
return key && strncmp(static_cast<char *>(key), s_internalPrefix, (size > s_internalPrefixSize ? s_internalPrefixSize : size)) == 0;
}
bool Storage::isInternalKey(const QByteArray &key)
{
return key.startsWith(s_internalPrefix);
}
QByteArray Storage::assembleKey(const QByteArray &key, qint64 revision)
{
Q_ASSERT(key.size() == 38);
return key + QByteArray::number(revision);
}
QByteArray Storage::uidFromKey(const QByteArray &key)
{
return key.mid(0, 38);
}
} // namespace Akonadi2
|
