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-rw-r--r--common/indexupdater.h91
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diff --git a/common/indexupdater.h b/common/indexupdater.h
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1/*
2 * Copyright (C) 2015 Christian Mollekopf <chrigi_1@fastmail.fm>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the
16 * Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19#pragma once
20
21#include <pipeline.h>
22#include <index.h>
23
24class IndexUpdater : public Sink::Preprocessor
25{
26public:
27 IndexUpdater(const QByteArray &index, const QByteArray &type, const QByteArray &property) : mIndexIdentifier(index), mBufferType(type), mProperty(property)
28 {
29 }
30
31 void newEntity(const QByteArray &uid, qint64 revision, Sink::ApplicationDomain::BufferAdaptor &newEntity, Sink::Storage::DataStore::Transaction &transaction) Q_DECL_OVERRIDE
32 {
33 add(newEntity.getProperty(mProperty), uid, transaction);
34 }
35
36 void modifiedEntity(const QByteArray &uid, qint64 revision, const Sink::ApplicationDomain::BufferAdaptor &oldEntity, Sink::ApplicationDomain::BufferAdaptor &newEntity,
37 Sink::Storage::DataStore::Transaction &transaction) Q_DECL_OVERRIDE
38 {
39 remove(oldEntity.getProperty(mProperty), uid, transaction);
40 add(newEntity.getProperty(mProperty), uid, transaction);
41 }
42
43 void deletedEntity(const QByteArray &uid, qint64 revision, const Sink::ApplicationDomain::BufferAdaptor &oldEntity, Sink::Storage::DataStore::Transaction &transaction) Q_DECL_OVERRIDE
44 {
45 remove(oldEntity.getProperty(mProperty), uid, transaction);
46 }
47
48private:
49 void add(const QVariant &value, const QByteArray &uid, Sink::Storage::DataStore::Transaction &transaction)
50 {
51 if (value.isValid()) {
52 Index(mIndexIdentifier, transaction).add(value.toByteArray(), uid);
53 }
54 }
55
56 void remove(const QVariant &value, const QByteArray &uid, Sink::Storage::DataStore::Transaction &transaction)
57 {
58 if (value.isValid()) {
59 const auto data = value.toByteArray();
60 if (!data.isEmpty()) {
61 Index(mIndexIdentifier, transaction).remove(data, uid);
62 }
63 }
64 }
65
66 QByteArray mIndexIdentifier;
67 QByteArray mBufferType;
68 QByteArray mProperty;
69};
70
71template <typename DomainType>
72class DefaultIndexUpdater : public Sink::Preprocessor
73{
74public:
75 void newEntity(const QByteArray &uid, qint64 revision, Sink::ApplicationDomain::BufferAdaptor &newEntity, Sink::Storage::DataStore::Transaction &transaction) Q_DECL_OVERRIDE
76 {
77 Sink::ApplicationDomain::TypeImplementation<DomainType>::index(uid, newEntity, transaction);
78 }
79
80 void modifiedEntity(const QByteArray &uid, qint64 revision, const Sink::ApplicationDomain::BufferAdaptor &oldEntity, Sink::ApplicationDomain::BufferAdaptor &newEntity,
81 Sink::Storage::DataStore::Transaction &transaction) Q_DECL_OVERRIDE
82 {
83 Sink::ApplicationDomain::TypeImplementation<DomainType>::removeIndex(uid, oldEntity, transaction);
84 Sink::ApplicationDomain::TypeImplementation<DomainType>::index(uid, newEntity, transaction);
85 }
86
87 void deletedEntity(const QByteArray &uid, qint64 revision, const Sink::ApplicationDomain::BufferAdaptor &oldEntity, Sink::Storage::DataStore::Transaction &transaction) Q_DECL_OVERRIDE
88 {
89 Sink::ApplicationDomain::TypeImplementation<DomainType>::removeIndex(uid, oldEntity, transaction);
90 }
91};