C++ ItemFetchJob类代码示例

void TagTest::testFetchTagIdWithItem()
{
    const Collection res3 = Collection(collectionIdFromPath(QStringLiteral("res3")));
    Tag tag;
    {
        TagCreateJob *createjob = new TagCreateJob(Tag(QStringLiteral("gid1")), this);
        AKVERIFYEXEC(createjob);
        tag = createjob->tag();
    }

    Item item1;
    {
        item1.setMimeType(QStringLiteral("application/octet-stream"));
        item1.setTag(tag);
        ItemCreateJob *append = new ItemCreateJob(item1, res3, this);
        AKVERIFYEXEC(append);
        item1 = append->item();
    }

    ItemFetchJob *fetchJob = new ItemFetchJob(item1, this);
    fetchJob->fetchScope().setFetchTags(true);
    fetchJob->fetchScope().tagFetchScope().setFetchIdOnly(true);
    AKVERIFYEXEC(fetchJob);
    QCOMPARE(fetchJob->items().first().tags().size(), 1);
    Tag t = fetchJob->items().first().tags().first();
    QCOMPARE(t.id(), tag.id());
    QVERIFY(t.gid().isEmpty());

    TagDeleteJob *deleteJob = new TagDeleteJob(tag, this);
    AKVERIFYEXEC(deleteJob);
}

void CalendarResource::itemRemoved(const Akonadi::Item &item)
{
    if (!canPerformTask()) {
        return;
    }

    if (item.mimeType() == KCalCore::Event::eventMimeType()) {
        KGAPI2::Job *job = new EventDeleteJob(item.remoteId(), item.parentCollection().remoteId(), account(), this);
        job->setProperty(ITEM_PROPERTY, QVariant::fromValue(item));
        connect(job, &EventCreateJob::finished, this, &CalendarResource::slotGenericJobFinished);

    } else if (item.mimeType() == KCalCore::Todo::todoMimeType()) {
        /* Google always automatically removes tasks with all their subtasks. In KOrganizer
         * by default we only remove the item we are given. For this reason we have to first
         * fetch all tasks, find all sub-tasks for the task being removed and detach them
         * from the task. Only then the task can be safely removed. */
        ItemFetchJob *fetchJob = new ItemFetchJob(item.parentCollection());
        fetchJob->setAutoDelete(true);
        fetchJob->fetchScope().fetchFullPayload(true);
        fetchJob->setProperty(ITEM_PROPERTY, qVariantFromValue(item));
        connect(fetchJob, &ItemFetchJob::finished, this, &CalendarResource::slotRemoveTaskFetchJobFinished);
        fetchJob->start();

    } else {
        cancelTask(i18n("Invalid payload type. Expected event or todo, got %1", item.mimeType()));
    }
}

void TransportResourceBasePrivate::send(Item::Id id)
{
    ItemFetchJob *job = new ItemFetchJob(Item(id));
    job->fetchScope().fetchFullPayload();
    job->setProperty("id", QVariant(id));
    connect(job, &KJob::result, this, &TransportResourceBasePrivate::fetchResult);
}

void ItemAppendTest::testContent()
{
    const Collection testFolder1(collectionIdFromPath(QStringLiteral("res2/space folder")));
    QVERIFY(testFolder1.isValid());

    QFETCH(QByteArray, data);

    Item item;
    item.setMimeType(QStringLiteral("application/octet-stream"));
    if (!data.isNull()) {
        item.setPayload(data);
    }

    ItemCreateJob *job = new ItemCreateJob(item, testFolder1, this);
    AKVERIFYEXEC(job);
    Item ref = job->item();

    ItemFetchJob *fjob = new ItemFetchJob(testFolder1, this);
    fjob->fetchScope().setCacheOnly(true);
    fjob->fetchScope().fetchFullPayload();
    AKVERIFYEXEC(fjob);
    QCOMPARE(fjob->items().count(), 1);
    Item item2 = fjob->items().first();
    QCOMPARE(item2.hasPayload(), !data.isNull());
    if (item2.hasPayload()) {
        QCOMPARE(item2.payload<QByteArray>(), data);
    }

    ItemDeleteJob *djob = new ItemDeleteJob(ref, this);
    AKVERIFYEXEC(djob);
}

void RetrieveItemsJob::Private::akonadiFetchResult(KJob *job)
{
    if (job->error() != 0) {
        return;    // handled by base class
    }

    ItemFetchJob *itemFetch = qobject_cast<ItemFetchJob *>(job);
    Q_ASSERT(itemFetch != 0);

    Item::List items = itemFetch->items();
    itemFetch->clearItems(); // save memory
    qCDebug(MIXEDMAILDIR_LOG) << "Akonadi fetch got" << items.count() << "items";

    mServerItemsByRemoteId.reserve(items.size());
    for (int i = 0; i < items.count(); ++i) {
        Item &item = items[i];
        // items without remoteId have not been written to the resource yet
        if (!item.remoteId().isEmpty()) {
            // set the parent collection (with all ancestors) in every item
            item.setParentCollection(mCollection);
            mServerItemsByRemoteId.insert(item.remoteId(), item);
        }
    }

    qCDebug(MIXEDMAILDIR_LOG) << "of which" << mServerItemsByRemoteId.count() << "have remoteId";

    FileStore::ItemFetchJob *storeFetch = mStore->fetchItems(mCollection);
    // just basic items, no data

    connect(storeFetch, SIGNAL(result(KJob*)), q, SLOT(storeListResult(KJob*)));
}

void FilterActionJob::doStart()
{
  if ( d->collection.isValid() ) {
    kDebug() << "Fetching collection" << d->collection.id();
    ItemFetchJob *fjob = new ItemFetchJob( d->collection, this );
    Q_ASSERT( d->functor );
    d->fetchScope = d->functor->fetchScope();
    fjob->setFetchScope( d->fetchScope );
    connect( fjob, SIGNAL(result(KJob*)), this, SLOT(fetchResult(KJob*)) );
  } else {

void ConflictHandler::start()
{
  if ( mConflictType == LocalLocalConflict || mConflictType == LocalRemoteConflict ) {
    ItemFetchJob *job = new ItemFetchJob( mConflictingItem, mSession );
    job->fetchScope().fetchFullPayload();
    job->fetchScope().setAncestorRetrieval( ItemFetchScope::Parent );
    connect( job, SIGNAL(result(KJob*)), SLOT(slotOtherItemFetched(KJob*)) );
  } else {
    resolve();
  }
}

void TagTest::testModifyItemWithTagByRID()
{
    {
        ResourceSelectJob *select = new ResourceSelectJob(QStringLiteral("akonadi_knut_resource_0"));
        AKVERIFYEXEC(select);
    }

    const Collection res3 = Collection(collectionIdFromPath(QStringLiteral("res3")));
    Tag tag3;
    {
        tag3.setGid("gid3");
        tag3.setRemoteId("rid3");
        TagCreateJob *createjob = new TagCreateJob(tag3, this);
        AKVERIFYEXEC(createjob);
        tag3 = createjob->tag();
    }

    Item item1;
    {
        item1.setMimeType(QStringLiteral("application/octet-stream"));
        ItemCreateJob *append = new ItemCreateJob(item1, res3, this);
        AKVERIFYEXEC(append);
        item1 = append->item();
    }

    Tag tag;
    tag.setRemoteId("rid2");
    item1.setTag(tag);

    ItemModifyJob *modJob = new ItemModifyJob(item1, this);
    AKVERIFYEXEC(modJob);

    ItemFetchJob *fetchJob = new ItemFetchJob(item1, this);
    fetchJob->fetchScope().setFetchTags(true);
    AKVERIFYEXEC(fetchJob);
    QCOMPARE(fetchJob->items().first().tags().size(), 1);

    {
        TagDeleteJob *deleteJob = new TagDeleteJob(fetchJob->items().first().tags().first(), this);
        AKVERIFYEXEC(deleteJob);
    }

    {
        TagDeleteJob *deleteJob = new TagDeleteJob(tag3, this);
        AKVERIFYEXEC(deleteJob);
    }

    {
        ResourceSelectJob *select = new ResourceSelectJob(QStringLiteral(""));
        AKVERIFYEXEC(select);
    }
}

void FilterActionJob::Private::fetchResult( KJob *job )
{
  if ( job->error() ) {
    // KCompositeJob takes care of errors.
    return;
  }

  ItemFetchJob *fjob = dynamic_cast<ItemFetchJob*>( job );
  Q_ASSERT( fjob );
  Q_ASSERT( items.isEmpty() );
  items = fjob->items();
  traverseItems();
}

    void testCopy()
    {
        const Collection target(collectionIdFromPath(QStringLiteral("res3")));
        QVERIFY(target.isValid());

        ItemCopyJob *copy = new ItemCopyJob(Item(1), target);
        AKVERIFYEXEC(copy);

        Item source(1);
        ItemFetchJob *sourceFetch = new ItemFetchJob(source);
        AKVERIFYEXEC(sourceFetch);
        source = sourceFetch->items().first();

        ItemFetchJob *fetch = new ItemFetchJob(target);
        fetch->fetchScope().fetchFullPayload();
        fetch->fetchScope().fetchAllAttributes();
        fetch->fetchScope().setCacheOnly(true);
        AKVERIFYEXEC(fetch);
        QCOMPARE(fetch->items().count(), 1);

        Item item = fetch->items().first();
        QVERIFY(item.hasPayload());
        QVERIFY(source.size() > 0);
        QVERIFY(item.size() > 0);
        QCOMPARE(item.size(), source.size());
        QCOMPARE(item.attributes().count(), 1);
        QVERIFY(item.remoteId().isEmpty());
        QEXPECT_FAIL("", "statistics are not properly updated after copy", Abort);
        QCOMPARE(target.statistics().count(), 1ll);
    }

void TransportResourceBasePrivate::fetchResult(KJob *job)
{
    if (job->error()) {
        const Item::Id id = job->property("id").toLongLong();
        emit transportResult(id, (int)TransportResourceBase::TransportFailed, job->errorText());
        return;
    }

    ItemFetchJob *fetchJob = qobject_cast<ItemFetchJob *>(job);
    Q_ASSERT(fetchJob);

    const Item item = fetchJob->items().at(0);
    q->sendItem(item);
}

void CalendarResource::itemAdded(const Akonadi::Item &item, const Akonadi::Collection &collection)
{
    if ((!collection.contentMimeTypes().contains(KCalCore::Event::eventMimeType()) &&
            !collection.contentMimeTypes().contains(KCalCore::Todo::todoMimeType())) ||
            (!canPerformTask<KCalCore::Event::Ptr>(item, KCalCore::Event::eventMimeType()) &&
             !canPerformTask<KCalCore::Todo::Ptr>(item, KCalCore::Todo::todoMimeType()))) {
        return;
    }

    if (collection.parentCollection() == Akonadi::Collection::root()) {
        cancelTask(i18n("The top-level collection cannot contain any tasks or events"));
        return;
    }

    KGAPI2::Job *job = Q_NULLPTR;
    if (item.hasPayload<KCalCore::Event::Ptr>()) {
        KCalCore::Event::Ptr event = item.payload<KCalCore::Event::Ptr>();
        EventPtr kevent(new Event(*event));
        kevent->setUid(QLatin1String(""));

        job = new EventCreateJob(kevent, collection.remoteId(), account(),  this);

    } else if (item.hasPayload<KCalCore::Todo::Ptr>()) {
        KCalCore::Todo::Ptr todo = item.payload<KCalCore::Todo::Ptr>();
        TaskPtr ktodo(new Task(*todo));
        ktodo->setUid(QLatin1String(""));

        if (!ktodo->relatedTo(KCalCore::Incidence::RelTypeParent).isEmpty()) {
            Akonadi::Item parentItem;
            parentItem.setGid(ktodo->relatedTo(KCalCore::Incidence::RelTypeParent));

            ItemFetchJob *fetchJob = new ItemFetchJob(parentItem, this);
            fetchJob->setProperty(ITEM_PROPERTY, QVariant::fromValue(item));
            fetchJob->setProperty(TASK_PROPERTY, QVariant::fromValue(ktodo));

            connect(fetchJob, &ItemFetchJob::finished, this, &CalendarResource::slotTaskAddedSearchFinished);
            return;
        } else {
            job = new TaskCreateJob(ktodo, collection.remoteId(), account(), this);
        }
    } else {
        cancelTask(i18n("Invalid payload type"));
        return;
    }

    job->setProperty(ITEM_PROPERTY, QVariant::fromValue(item));
    connect(job, &EventCreateJob::finished, this, &CalendarResource::slotCreateJobFinished);
}

void ConflictHandler::slotOtherItemFetched( KJob *job )
{
  if ( job->error() ) {
    emit error( job->errorText() ); //TODO: extend error message
    return;
  }

  ItemFetchJob *fetchJob = qobject_cast<ItemFetchJob*>( job );
  if ( fetchJob->items().isEmpty() ) {
    emit error( i18n( "Did not find other item for conflict handling" ) );
    return;
  }

  mConflictingItem = fetchJob->items().first();
  QMetaObject::invokeMethod( this, "resolve", Qt::QueuedConnection );
}

void RecursiveMover::replayNextItem()
{
  Q_ASSERT( m_currentCollection.isValid() );
  if ( m_pendingItems.isEmpty() ) {
    replayNextCollection(); // all items processed here
    return;
  } else {
    Q_ASSERT( m_currentAction == None );
    m_currentItem = m_pendingItems.takeFirst();
    ItemFetchJob *job = new ItemFetchJob( m_currentItem, this );
    job->fetchScope().fetchFullPayload();
    connect( job, SIGNAL(result(KJob*)), SLOT(itemFetchResult(KJob*)) );
    addSubjob( job );
    ++m_runningJobs;
  }
}

void AkonadiSlave::stat(const QUrl &url)
{
    qCDebug(AKONADISLAVE_LOG) << url;

    // Stats for a collection
    if (Collection::fromUrl(url).isValid()) {
        Collection collection = Collection::fromUrl(url);

        if (collection != Collection::root()) {
            // Check that the collection exists.
            CollectionFetchJob *job = new CollectionFetchJob(collection, CollectionFetchJob::Base);
            if (!job->exec()) {
                error(KIO::ERR_INTERNAL, job->errorString());
                return;
            }

            if (job->collections().count() != 1) {
                error(KIO::ERR_DOES_NOT_EXIST, i18n("No such item."));
                return;
            }

            collection = job->collections().at(0);
        }

        statEntry(entryForCollection(collection));
        finished();
    }
    // Stats for an item
    else if (Item::fromUrl(url).isValid()) {
        ItemFetchJob *job = new ItemFetchJob(Item::fromUrl(url));

        if (!job->exec()) {
            error(KIO::ERR_INTERNAL, job->errorString());
            return;
        }

        if (job->items().count() != 1) {
            error(KIO::ERR_DOES_NOT_EXIST, i18n("No such item."));
            return;
        }

        const Item item = job->items().at(0);
        statEntry(entryForItem(item));
        finished();
    }
}