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-rw-r--r--examples/dummyresource/facade.cpp128
1 files changed, 0 insertions, 128 deletions
diff --git a/examples/dummyresource/facade.cpp b/examples/dummyresource/facade.cpp
index 002b836..d6e9286 100644
--- a/examples/dummyresource/facade.cpp
+++ b/examples/dummyresource/facade.cpp
@@ -19,25 +19,7 @@
19 19
20#include "facade.h" 20#include "facade.h"
21 21
22#include <QDebug>
23#include <functional>
24
25#include "common/resourceaccess.h"
26#include "common/commands.h"
27#include "common/resultset.h"
28#include "common/domain/event.h"
29#include "dummycalendar_generated.h"
30#include "event_generated.h"
31#include "entity_generated.h"
32#include "metadata_generated.h"
33#include "domainadaptor.h" 22#include "domainadaptor.h"
34#include <common/entitybuffer.h>
35#include <common/index.h>
36#include <common/log.h>
37
38using namespace DummyCalendar;
39using namespace flatbuffers;
40
41 23
42DummyResourceFacade::DummyResourceFacade() 24DummyResourceFacade::DummyResourceFacade()
43 : Akonadi2::GenericFacade<Akonadi2::ApplicationDomain::Event>("org.kde.dummy.instance1", QSharedPointer<DummyEventAdaptorFactory>::create()) 25 : Akonadi2::GenericFacade<Akonadi2::ApplicationDomain::Event>("org.kde.dummy.instance1", QSharedPointer<DummyEventAdaptorFactory>::create())
@@ -48,113 +30,3 @@ DummyResourceFacade::~DummyResourceFacade()
48{ 30{
49} 31}
50 32
51static void scan(const QSharedPointer<Akonadi2::Storage> &storage, const QByteArray &key, std::function<bool(const QByteArray &key, const Akonadi2::Entity &entity, DummyEvent const *buffer, Akonadi2::ApplicationDomain::Buffer::Event const *local, Akonadi2::Metadata const *metadata)> callback)
52{
53 storage->scan(key, [=](void *keyValue, int keySize, void *dataValue, int dataSize) -> bool {
54 //Skip internals
55 if (Akonadi2::Storage::isInternalKey(keyValue, keySize)) {
56 return true;
57 }
58
59 //Extract buffers
60 Akonadi2::EntityBuffer buffer(dataValue, dataSize);
61
62 const auto resourceBuffer = Akonadi2::EntityBuffer::readBuffer<DummyEvent>(buffer.entity().resource());
63 const auto localBuffer = Akonadi2::EntityBuffer::readBuffer<Akonadi2::ApplicationDomain::Buffer::Event>(buffer.entity().local());
64 const auto metadataBuffer = Akonadi2::EntityBuffer::readBuffer<Akonadi2::Metadata>(buffer.entity().metadata());
65
66 if ((!resourceBuffer && !localBuffer) || !metadataBuffer) {
67 qWarning() << "invalid buffer " << QByteArray::fromRawData(static_cast<char*>(keyValue), keySize);
68 return true;
69 }
70 return callback(QByteArray::fromRawData(static_cast<char*>(keyValue), keySize), buffer.entity(), resourceBuffer, localBuffer, metadataBuffer);
71 },
72 [](const Akonadi2::Storage::Error &error) {
73 qWarning() << "Error during query: " << error.message;
74 });
75}
76
77static void readValue(const QSharedPointer<Akonadi2::Storage> &storage, const QByteArray &key, const std::function<void(const Akonadi2::ApplicationDomain::Event::Ptr &)> &resultCallback, const QSharedPointer<DomainTypeAdaptorFactoryInterface<Akonadi2::ApplicationDomain::Event> > &adaptorFactory)
78{
79 scan(storage, key, [=](const QByteArray &key, const Akonadi2::Entity &entity, DummyEvent const *buffer, Akonadi2::ApplicationDomain::Buffer::Event const *local, Akonadi2::Metadata const *metadataBuffer) {
80 qint64 revision = metadataBuffer ? metadataBuffer->revision() : -1;
81 //This only works for a 1:1 mapping of resource to domain types.
82 //Not i.e. for tags that are stored as flags in each entity of an imap store.
83 //additional properties that don't have a 1:1 mapping (such as separately stored tags),
84 //could be added to the adaptor
85 auto event = QSharedPointer<Akonadi2::ApplicationDomain::Event>::create("org.kde.dummy.instance1", key, revision, adaptorFactory->createAdaptor(entity));
86 resultCallback(event);
87 return true;
88 });
89}
90
91static ResultSet getResultSet(const Akonadi2::Query &query, const QSharedPointer<Akonadi2::Storage> &storage, const QSharedPointer<DomainTypeAdaptorFactoryInterface<Akonadi2::ApplicationDomain::Event> > &adaptorFactory)
92{
93 QSet<QByteArray> appliedFilters;
94 ResultSet resultSet = Akonadi2::ApplicationDomain::TypeImplementation<Akonadi2::ApplicationDomain::Event>::queryIndexes(query, "org.kde.dummy.instance1", appliedFilters);
95 const auto remainingFilters = query.propertyFilter.keys().toSet() - appliedFilters;
96
97 //We do a full scan if there were no indexes available to create the initial set.
98 //TODO use a result set with an iterator, to read values on demand
99 if (appliedFilters.isEmpty()) {
100 QVector<QByteArray> keys;
101 scan(storage, QByteArray(), [=, &keys](const QByteArray &key, const Akonadi2::Entity &entity, DummyEvent const *buffer, Akonadi2::ApplicationDomain::Buffer::Event const *local, Akonadi2::Metadata const *metadataBuffer) {
102 keys << key;
103 return true;
104 });
105 resultSet = ResultSet(keys);
106 }
107
108 auto filter = [remainingFilters, query](const Akonadi2::ApplicationDomain::ApplicationDomainType::Ptr &event) -> bool {
109 for (const auto &filterProperty : remainingFilters) {
110 //TODO implement other comparison operators than equality
111 if (event->getProperty(filterProperty) != query.propertyFilter.value(filterProperty)) {
112 return false;
113 }
114 }
115 return true;
116 };
117
118 auto resultSetPtr = QSharedPointer<ResultSet>::create(resultSet);
119
120 //Read through the source values and return whatever matches the filter
121 std::function<bool(std::function<void(const Akonadi2::ApplicationDomain::ApplicationDomainType::Ptr &)>)> generator = [resultSetPtr, storage, adaptorFactory, filter](std::function<void(const Akonadi2::ApplicationDomain::ApplicationDomainType::Ptr &)> callback) -> bool {
122 while (resultSetPtr->next()) {
123 Akonadi2::ApplicationDomain::Event::Ptr event;
124 readValue(storage, resultSetPtr->id(), [filter, callback](const Akonadi2::ApplicationDomain::Event::Ptr &event) {
125 if (filter(event)) {
126 callback(event);
127 }
128 }, adaptorFactory);
129 }
130 return false;
131 };
132 return ResultSet(generator);
133}
134
135//TODO generalize
136KAsync::Job<qint64> DummyResourceFacade::load(const Akonadi2::Query &query, const QSharedPointer<Akonadi2::ResultProvider<Akonadi2::ApplicationDomain::Event::Ptr> > &resultProvider, qint64 oldRevision, qint64 newRevision)
137{
138 return KAsync::start<qint64>([=]() {
139 auto storage = QSharedPointer<Akonadi2::Storage>::create(Akonadi2::Store::storageLocation(), "org.kde.dummy.instance1");
140 storage->setDefaultErrorHandler([](const Akonadi2::Storage::Error &error) {
141 Warning() << "Error during query: " << error.store << error.message;
142 });
143
144 storage->startTransaction(Akonadi2::Storage::ReadOnly);
145 //TODO start transaction on indexes as well
146 const qint64 revision = storage->maxRevision();
147
148 auto resultSet = getResultSet(query, storage, mDomainTypeAdaptorFactory);
149
150 // TODO only emit changes and don't replace everything
151 resultProvider->clear();
152 auto resultCallback = std::bind(&Akonadi2::ResultProvider<Akonadi2::ApplicationDomain::Event::Ptr>::add, resultProvider, std::placeholders::_1);
153 while(resultSet.next([resultCallback](const Akonadi2::ApplicationDomain::ApplicationDomainType::Ptr &value) -> bool {
154 resultCallback(Akonadi2::ApplicationDomain::ApplicationDomainType::getInMemoryRepresentation<Akonadi2::ApplicationDomain::Event>(value));
155 })){};
156 storage->abortTransaction();
157 return revision;
158 });
159}
160