From 52786ac08e0b6c768a006f5bdc5d454d0afb5416 Mon Sep 17 00:00:00 2001 From: Kevin Simons Date: Sun, 1 Apr 2012 20:52:52 +0200 Subject: Split partition handling out into a separate module This is a brute force attempt to create a jsondbpartition module which can be used by the daemon, by autotests and by the client for private partitions. Most of the classes were largely unmodified by this change (with the exception of namespace and symbol exports). JsonDbManagedBtree was somewhat reworked in order not to expose QBtree as part of this module. Overall, the number of headers exposed by this module is far too large currently. Subsequent patches are needed to refine the APIs of this module, to make all the headers private and to overall reduce the number of headers provided. Change-Id: I6deaf32960102f9d3efcb290edd82381597657aa Reviewed-by: Jamey Hicks --- src/partition/jsondbcollator.cpp | 341 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 341 insertions(+) create mode 100644 src/partition/jsondbcollator.cpp (limited to 'src/partition/jsondbcollator.cpp') diff --git a/src/partition/jsondbcollator.cpp b/src/partition/jsondbcollator.cpp new file mode 100644 index 00000000..869bf3f8 --- /dev/null +++ b/src/partition/jsondbcollator.cpp @@ -0,0 +1,341 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtAddOn.JsonDb module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef NO_COLLATION_SUPPORT + +#include "jsondbcollator.h" +#include "jsondbcollator_p.h" + +#include +#include +#include + +#include "qdebug.h" + +QT_BEGIN_NAMESPACE_JSONDB_PARTITION + +JsonDbCollatorPrivate::~JsonDbCollatorPrivate() +{ + if (collator) + ucol_close(collator); +} + +static const int collationStringsCount = 13; +static const char * const collationStrings[collationStringsCount] = { + "default", + "big5han", + "dict", + "direct", + "gb2312", + "phonebk", + "pinyin", + "phonetic", + "reformed", + "standard", + "stroke", + "trad", + "unihan" +}; + +JsonDbCollator::JsonDbCollator(const QLocale &locale, JsonDbCollator::Collation collation) + : d(new JsonDbCollatorPrivate) +{ + d->locale = locale; + if ((int)collation >= 0 && (int)collation < collationStringsCount) + d->collation = collation; + + init(); +} + +JsonDbCollator::JsonDbCollator(const JsonDbCollator &other) + : d(other.d) +{ + d->ref.ref(); +} + +JsonDbCollator::~JsonDbCollator() +{ + if (!d->ref.deref()) + delete d; +} + +JsonDbCollator &JsonDbCollator::operator=(const JsonDbCollator &other) +{ + if (this != &other) { + if (!d->ref.deref()) + delete d; + *d = *other.d; + d->ref.ref(); + } + return *this; +} + +void JsonDbCollator::setLocale(const QLocale &locale) +{ + if (d->ref.load() != 1) + detach(); + if (d->collator) + ucol_close(d->collator); + d->locale = locale; + + init(); +} + +QLocale JsonDbCollator::locale() const +{ + return d->locale; +} + +void JsonDbCollator::setCollation(JsonDbCollator::Collation collation) +{ + if ((int)collation < 0 || (int)collation >= collationStringsCount) + return; + + if (d->ref.load() != 1) + detach(); + if (d->collator) + ucol_close(d->collator); + d->collation = collation; + + init(); +} + +JsonDbCollator::Collation JsonDbCollator::collation() const +{ + return d->collation; +} + +void JsonDbCollator::init() +{ + Q_ASSERT((int)d->collation < collationStringsCount); + const char *collationString = collationStrings[(int)d->collation]; + UErrorCode status = U_ZERO_ERROR; + QByteArray name = (d->locale.bcp47Name().replace(QLatin1Char('-'), QLatin1Char('_')) + QLatin1String("@collation=") + QLatin1String(collationString)).toLatin1(); + d->collator = ucol_open(name.constData(), &status); + if (U_FAILURE(status)) + qWarning("Could not create collator: %d", status); + + // enable normalization by default + ucol_setAttribute(d->collator, UCOL_NORMALIZATION_MODE, UCOL_ON, &status); + + // fetch options from the collator + d->options = 0; + + switch (ucol_getAttribute(d->collator, UCOL_CASE_FIRST, &status)) { + case UCOL_UPPER_FIRST: d->options |= JsonDbCollator::PreferUpperCase; break; + case UCOL_LOWER_FIRST: d->options |= JsonDbCollator::PreferLowerCase; break; + case UCOL_OFF: + default: + break; + } + + switch (ucol_getAttribute(d->collator, UCOL_FRENCH_COLLATION, &status)) { + case UCOL_ON: d->options |= JsonDbCollator::FrenchCollation; break; + case UCOL_OFF: + default: + break; + } + + switch (ucol_getAttribute(d->collator, UCOL_ALTERNATE_HANDLING, &status)) { + case UCOL_SHIFTED: d->options |= JsonDbCollator::IgnorePunctuation; break; + case UCOL_NON_IGNORABLE: + default: + break; + } + + + switch (ucol_getAttribute(d->collator, UCOL_CASE_LEVEL, &status)) { + case UCOL_ON: d->options |= JsonDbCollator::ExtraCaseLevel; break; + case UCOL_OFF: + default: + break; + } + + switch (ucol_getAttribute(d->collator, UCOL_HIRAGANA_QUATERNARY_MODE, &status)) { + case UCOL_ON: d->options |= JsonDbCollator::HiraganaQuaternaryMode; break; + case UCOL_OFF: + default: + break; + } + + switch (ucol_getAttribute(d->collator, UCOL_NUMERIC_COLLATION, &status)) { + case UCOL_ON: d->options |= JsonDbCollator::NumericMode; break; + case UCOL_OFF: + default: + break; + } +} + +void JsonDbCollator::detach() +{ + if (d->ref.load() != 1) { + JsonDbCollatorPrivate *x = new JsonDbCollatorPrivate; + x->ref.store(1); + x->strength = d->strength; + x->options = d->options; + x->modified = true; + x->collator = 0; + if (!d->ref.deref()) + delete d; + d = x; + } +} + +void JsonDbCollator::setStrength(JsonDbCollator::Strength strength) +{ + if (d->ref.load() != 1) + detach(); + + switch (strength) { + case JsonDbCollator::PrimaryStrength: ucol_setStrength(d->collator, UCOL_PRIMARY); break; + case JsonDbCollator::SecondaryStrength: ucol_setStrength(d->collator, UCOL_SECONDARY); break; + case JsonDbCollator::TertiaryStrength: ucol_setStrength(d->collator, UCOL_TERTIARY); break; + case JsonDbCollator::QuaternaryStrength: ucol_setStrength(d->collator, UCOL_QUATERNARY); break; + case JsonDbCollator::IdenticalStrength: ucol_setStrength(d->collator, UCOL_IDENTICAL); break; + default: + qWarning("Invalid strength mode %d", strength); + } +} + +JsonDbCollator::Strength JsonDbCollator::strength() const +{ + switch (ucol_getStrength(d->collator)) { + case UCOL_PRIMARY: return JsonDbCollator::PrimaryStrength; + case UCOL_SECONDARY: return JsonDbCollator::SecondaryStrength; + case UCOL_QUATERNARY:return JsonDbCollator::QuaternaryStrength; + case UCOL_IDENTICAL: return JsonDbCollator::IdenticalStrength; + case UCOL_TERTIARY: + default: + return JsonDbCollator::TertiaryStrength; + } + return JsonDbCollator::TertiaryStrength; +} + +void JsonDbCollator::setOptions(JsonDbCollator::Options options) +{ + if (d->ref.load() != 1) + detach(); + + d->options = options; + + UErrorCode status = U_ZERO_ERROR; + + if (options & JsonDbCollator::PreferUpperCase) + ucol_setAttribute(d->collator, UCOL_CASE_FIRST, UCOL_UPPER_FIRST, &status); + else if (options & JsonDbCollator::PreferLowerCase) + ucol_setAttribute(d->collator, UCOL_CASE_FIRST, UCOL_LOWER_FIRST, &status); + else + ucol_setAttribute(d->collator, UCOL_CASE_FIRST, UCOL_OFF, &status); + if (U_FAILURE(status)) + qWarning("ucol_setAttribute: Case First failed: %d", status); + + ucol_setAttribute(d->collator, UCOL_FRENCH_COLLATION, + options & JsonDbCollator::FrenchCollation ? UCOL_ON : UCOL_OFF, &status); + if (U_FAILURE(status)) + qWarning("ucol_setAttribute: French collation failed: %d", status); + + ucol_setAttribute(d->collator, UCOL_NORMALIZATION_MODE, + options & JsonDbCollator::DisableNormalization ? UCOL_OFF : UCOL_ON, &status); + if (U_FAILURE(status)) + qWarning("ucol_setAttribute: Normalization mode failed: %d", status); + + ucol_setAttribute(d->collator, UCOL_ALTERNATE_HANDLING, + (options & JsonDbCollator::IgnorePunctuation) ? UCOL_SHIFTED : UCOL_NON_IGNORABLE, &status); + if (U_FAILURE(status)) + qWarning("ucol_setAttribute: Alternate handling failed: %d", status); + + ucol_setAttribute(d->collator, UCOL_CASE_LEVEL, + options & JsonDbCollator::ExtraCaseLevel ? UCOL_ON : UCOL_OFF, &status); + if (U_FAILURE(status)) + qWarning("ucol_setAttribute: Case level failed: %d", status); + + ucol_setAttribute(d->collator, UCOL_HIRAGANA_QUATERNARY_MODE, + options & JsonDbCollator::HiraganaQuaternaryMode ? UCOL_ON : UCOL_OFF, &status); + if (U_FAILURE(status)) + qWarning("ucol_setAttribute: hiragana mode failed: %d", status); + + ucol_setAttribute(d->collator, UCOL_NUMERIC_COLLATION, + options & JsonDbCollator::NumericMode ? UCOL_ON : UCOL_OFF, &status); + if (U_FAILURE(status)) + qWarning("ucol_setAttribute: numeric collation failed: %d", status); +} + +JsonDbCollator::Options JsonDbCollator::options() const +{ + return d->options; +} + +int JsonDbCollator::compare(const QString &s1, const QString &s2) const +{ + return d->compare((ushort *)s1.constData(), s1.size(), (ushort *)s2.constData(), s2.size()); +} + +int JsonDbCollator::compare(const QStringRef &s1, const QStringRef &s2) const +{ + return d->compare((ushort *)s1.constData(), s1.size(), (ushort *)s2.constData(), s2.size()); +} + +int JsonDbCollatorPrivate::compare(ushort *s1, int len1, ushort *s2, int len2) +{ + const UCollationResult result = + ucol_strcoll(collator, (const UChar *)s1, len1, (const UChar *)s2, len2); + return result; +} + +QByteArray JsonDbCollator::sortKey(const QString &string) const +{ + QByteArray result(16 + string.size() + (string.size() >> 2), Qt::Uninitialized); + int size = ucol_getSortKey(d->collator, (const UChar *)string.constData(), + string.size(), (uint8_t *)result.data(), result.size()); + if (size > result.size()) { +#ifdef _DEBUG + qDebug() << "### sortKey realloc from" << result.size() << "to" << size << "for string" << string.size(); +#endif + result.resize(size); + size = ucol_getSortKey(d->collator, (const UChar *)string.constData(), + string.size(), (uint8_t *)result.data(), result.size()); + } + result.truncate(size); + return result; +} +QT_END_NAMESPACE_JSONDB_PARTITION + +#endif // NO_COLLATION_SUPPORT -- cgit v1.2.3