service/MailSearchReadService.cpp
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| 1 | #include "MailSearchReadService.h" | ||
| 2 | #include "data/ContactMailLinkQuery.h" | ||
| 3 | #include <QCoreApplication> | ||
| 4 | #include <QStandardPaths> | ||
| 5 | |||
| 6 | 34 | MailSearchReadService::MailSearchReadService(QObject *parent, Executor executor, SummaryExecutor summaryExecutor) | |
| 7 |
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34 | : QObject(parent), m_pages(this, executor ? std::move(executor) : readCache, MaxPending), |
| 8 |
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68 | m_summaries(this, summaryExecutor ? std::move(summaryExecutor) : summarizeCache, MaxPending) { |
| 9 |
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35 | connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, this, [this] { stop(); }); |
| 10 | 34 | } | |
| 11 | 55 | MailSearchReadService::~MailSearchReadService() { stop(); } | |
| 12 | 878 | MailSearchReadService *MailSearchReadService::shared() { | |
| 13 |
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878 | static QPointer<MailSearchReadService> instance; |
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878 | if (!instance) instance = new MailSearchReadService(QCoreApplication::instance()); |
| 15 | 878 | return instance; | |
| 16 | } | ||
| 17 | 321 | MailSearchPage MailSearchReadService::readCache(const MailSearchRequest &request, | |
| 18 | const std::atomic_bool &cancelled) { | ||
| 19 | 321 | MailSearchPage result; | |
| 20 |
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321 | if (cancelled.load()) { result.outcome = MailSearchPage::Outcome::Cancelled; return result; } |
| 21 |
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317 | MailCache reader; |
| 22 |
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317 | if (!reader.openReadOnly(request.databasePath)) { result.error = reader.lastError(); return result; } |
| 23 | 632 | return reader.search().searchPage(request.query, resolvedFilter(request), request.accountId, | |
| 24 |
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316 | request.limit, request.offset, cancelled); |
| 25 | 321 | } | |
| 26 | 260 | MailSearchSummary MailSearchReadService::summarizeCache(const MailSearchRequest &request, | |
| 27 | const std::atomic_bool &cancelled) { | ||
| 28 | 260 | MailSearchSummary result; | |
| 29 |
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260 | if (cancelled.load()) { result.outcome = MailSearchSummary::Outcome::Cancelled; return result; } |
| 30 |
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260 | MailCache reader; |
| 31 |
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260 | if (!reader.openReadOnly(request.databasePath)) { result.error = reader.lastError(); return result; } |
| 32 | 520 | return reader.search().searchSummary(request.query, resolvedFilter(request), request.accountId, request.detail, cancelled, | |
| 33 |
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260 | MailSearchSummary::TimeLimitMs, request.allowedFolders); |
| 34 | 260 | } | |
| 35 | // Sprint 103 D-21: about:<name> becomes the linked Message-IDs, on the worker. | ||
| 36 | 576 | MailCache::SearchFilter MailSearchReadService::resolvedFilter(const MailSearchRequest &request) { | |
| 37 | 576 | MailCache::SearchFilter filter = request.filter; | |
| 38 |
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576 | if (filter.aboutFilter.isEmpty() || !filter.aboutMessageIds.isEmpty()) return filter; |
| 39 | 6 | const QString path = !request.contactsDatabasePath.isEmpty() | |
| 40 | 12 | ? request.contactsDatabasePath | |
| 41 |
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6 | : QStandardPaths::writableLocation(QStandardPaths::ConfigLocation) + QStringLiteral("/mailjd/contacts.db"); |
| 42 |
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12 | filter.aboutMessageIds = ContactMailLinkQuery::messageIdsAbout(path, filter.aboutFilter, |
| 43 | 6 | MailCache::SearchFilter::MaxAboutMessageIds); | |
| 44 | 6 | return filter; | |
| 45 | 6 | } | |
| 46 | 35 | void MailSearchReadService::stop() { | |
| 47 | 35 | m_pages.stop(); | |
| 48 | 35 | m_summaries.stop(); | |
| 49 | 35 | } | |
| 50 | 664 | bool MailSearchReadService::admissible(const MailSearchRequest &request, bool page) { | |
| 51 |
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1327 | if (request.databasePath.size() > 4096 || (request.accountId && request.accountId->size() > 4096) |
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1327 | || !request.filter.fitsReadLimits(request.query)) return false; |
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660 | return !page || (request.limit > 0 && request.limit <= MailSearchPage::MaxRows && request.offset >= 0); |
| 54 | } | ||
| 55 | 3247 | void MailSearchReadService::cancel(QObject *owner) { m_pages.cancel(owner); } | |
| 56 | 740 | void MailSearchReadService::cancelSummary(QObject *owner) { m_summaries.cancel(owner); } | |
| 57 | 388 | void MailSearchReadService::read(QObject *owner, MailSearchRequest query, Callback callback) { | |
| 58 | 388 | m_pages.cancel(owner); | |
| 59 |
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388 | if (!owner) return; |
| 60 |
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387 | if (!admissible(query, true)) { |
| 61 | 7 | MailSearchPage result; | |
| 62 | 7 | result.outcome = MailSearchPage::Outcome::Limited; | |
| 63 | 7 | result.error = QStringLiteral("Search request exceeds admission limits"); | |
| 64 |
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7 | callback(std::move(result)); |
| 65 | 7 | return; | |
| 66 | 7 | } | |
| 67 |
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380 | if (!m_pages.enqueue(owner, std::move(query), callback)) { |
| 68 | 2 | MailSearchPage result; | |
| 69 | 2 | result.outcome = MailSearchPage::Outcome::Busy; | |
| 70 | 2 | result.error = QStringLiteral("Search reader queue is full"); | |
| 71 |
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2 | callback(std::move(result)); |
| 72 | 2 | } | |
| 73 | } | ||
| 74 | 277 | void MailSearchReadService::summarize(QObject *owner, MailSearchRequest query, SummaryCallback callback) { | |
| 75 | 277 | m_summaries.cancel(owner); | |
| 76 |
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277 | if (!owner) return; |
| 77 |
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277 | if (!admissible(query, false)) { |
| 78 | ✗ | MailSearchSummary result; | |
| 79 | ✗ | result.outcome = MailSearchSummary::Outcome::Limited; | |
| 80 | ✗ | result.error = QStringLiteral("Search request exceeds admission limits"); | |
| 81 | ✗ | callback(std::move(result)); | |
| 82 | ✗ | return; | |
| 83 | ✗ | } | |
| 84 |
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277 | if (!m_summaries.enqueue(owner, std::move(query), callback)) { |
| 85 | ✗ | MailSearchSummary result; | |
| 86 | ✗ | result.outcome = MailSearchSummary::Outcome::Busy; | |
| 87 | ✗ | result.error = QStringLiteral("Search reader queue is full"); | |
| 88 | ✗ | callback(std::move(result)); | |
| 89 | ✗ | } | |
| 90 | } | ||
| 91 |