forked from openkylin/ukui-search
243 lines
8.8 KiB
C++
243 lines
8.8 KiB
C++
/*
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* Copyright (C) 2022, KylinSoft Co., Ltd.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* Authors: iaom <zhangpengfei@kylinos.cn>
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*
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*/
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#include "index-scheduler.h"
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#include "index-updater.h"
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#include "compatible-define.h"
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using namespace UkuiSearch;
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IndexScheduler::IndexScheduler(QObject *parent) :
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QObject(parent),
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m_statusRecorder(IndexStatusRecorder::getInstance()),
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m_config(FileIndexerConfig::getInstance()),
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m_state(Startup),
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m_stop(0)
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{
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qRegisterMetaType<IndexerState>("IndexerState");
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qRegisterMetaType<BatchIndexer::WorkMode>("BatchIndexer::WorkMode");
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m_threadPool.setMaxThreadCount(1);
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connect(&m_fileWatcher, &FileWatcher::filesUpdate, this, &IndexScheduler::updateIndex);
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connect(m_config, &FileIndexerConfig::fileIndexEnableStatusChanged, this, &IndexScheduler::fileIndexEnable);
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connect(m_config, &FileIndexerConfig::appendIndexDir, this, &IndexScheduler::addNewPath);
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connect(m_config, &FileIndexerConfig::removeIndexDir, this, &IndexScheduler::removeIndex);
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m_state = Startup;
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if(m_config->isFileIndexEnable()) {
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start();
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} else {
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m_stop.fetchAndStoreRelaxed(1);
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}
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}
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void IndexScheduler::addNewPath(const QString &folders, const QStringList &blackList)
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{
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if(m_stop.LOAD) {
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qDebug() << "Index Scheduler is being stopped, add operation will be executed when started up next time.";
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return;
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}
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m_state = Running;
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Q_EMIT stateChange(m_state);
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BatchIndexer::Targets target = BatchIndexer::Target::None;
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if(m_config->isFileIndexEnable()) {
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target |= BatchIndexer::Target::Basic;
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}
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if(m_config->isContentIndexEnable()) {
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target |= BatchIndexer::Target::Content;
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}
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BatchIndexer::WorkMode mode = BatchIndexer::WorkMode::Add;
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startIndexJob(QStringList() << folders, blackList, mode, target);
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if(BatchIndexer::Target::None != target) {
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m_fileWatcher.addWatch(folders, blackList);
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}
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}
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void IndexScheduler::removeIndex(const QString &folders)
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{
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if(m_stop.LOAD) {
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qDebug() << "Index Scheduler is being stopped, remove operation will be executed when started up next time.";
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return;
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}
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m_fileWatcher.removeWatch(folders, true);
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}
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void IndexScheduler::stop()
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{
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m_stop.fetchAndStoreRelaxed(1);
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m_fileWatcher.removeWatch();
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m_threadPool.clear();
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m_threadPool.waitForDone(-1);
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m_state = Stop;
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qDebug() << "Index scheduler has been stopped.";
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Q_EMIT stateChange(m_state);
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}
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void IndexScheduler::start()
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{
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qDebug() << "Index scheduler start.";
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if(!m_isFirstRunFinished || !m_isRebuildFinished) {
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qDebug() << "Index scheduler running, start operation ignored. FirstRun finished: " << m_isFirstRunFinished << "Rebuild finished: " << m_isRebuildFinished;
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return;
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}
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m_stop.fetchAndStoreRelaxed(0);
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m_state = Running;
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Q_EMIT stateChange(m_state);
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BatchIndexer::Targets rebuiltTarget = checkAndRebuild();
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BatchIndexer::WorkMode mode = BatchIndexer::WorkMode::Update;
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BatchIndexer::Targets target = BatchIndexer::Target::None;
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//如果数据库被执行过重建，那么跳过增量更新步骤。
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if(m_config->isFileIndexEnable() && !(rebuiltTarget & BatchIndexer::Target::Basic)) {
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target |= BatchIndexer::Target::Basic;
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m_statusRecorder->setStatus(INDEX_DATABASE_STATE_KEY, IndexStatusRecorder::State::Updating);
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}
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if(m_config->isContentIndexEnable() && !(rebuiltTarget & BatchIndexer::Target::Content)) {
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target |= BatchIndexer::Target::Content;
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m_statusRecorder->setStatus(CONTENT_INDEX_DATABASE_STATE_KEY, IndexStatusRecorder::State::Updating);
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}
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startIndexJob(m_config->currentIndexableDir(), m_config->currentBlackListOfIndex(), mode, target);
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//启动监听
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m_fileWatcher.installWatches();
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}
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IndexScheduler::IndexerState IndexScheduler::getIndexState()
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{
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return m_state;
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}
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BatchIndexer::Targets IndexScheduler::checkAndRebuild()
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{
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BatchIndexer::WorkMode mode = BatchIndexer::WorkMode::Rebuild;
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BatchIndexer::Targets target = BatchIndexer::Target::None;
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if((m_statusRecorder->getStatus(INDEX_DATABASE_STATE_KEY).toInt() == IndexStatusRecorder::State::Error
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|| !m_statusRecorder->versionCheck(INDEX_DATABASE_VERSION_KEY, INDEX_DATABASE_VERSION))
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&& m_config->isFileIndexEnable()) {
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qDebug() << "Basic database need rebuild";
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target |= BatchIndexer::Target::Basic;
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m_statusRecorder->setStatus(INDEX_DATABASE_STATE_KEY, IndexStatusRecorder::State::Initializing);
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}
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if((m_statusRecorder->getStatus(CONTENT_INDEX_DATABASE_STATE_KEY).toInt() == IndexStatusRecorder::State::Error
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|| !m_statusRecorder->versionCheck(CONTENT_DATABASE_VERSION_KEY, CONTENT_DATABASE_VERSION))
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&& m_config->isFileIndexEnable()) {
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qDebug() << "Content database need rebuild";
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target |= BatchIndexer::Target::Content;
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m_statusRecorder->setStatus(CONTENT_INDEX_DATABASE_STATE_KEY, IndexStatusRecorder::State::Initializing);
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}
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startIndexJob(m_config->currentIndexableDir(), m_config->currentBlackListOfIndex(), mode, target);
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return target;
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}
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void IndexScheduler::startIndexJob(const QStringList& folders,const QStringList& blackList, BatchIndexer::WorkMode mode, BatchIndexer::Targets target)
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{
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if(BatchIndexer::Target::None != target) {
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switch (mode) {
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case BatchIndexer::WorkMode::Add:
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m_isAddNewPathFinished = false;
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break;
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case BatchIndexer::WorkMode::Rebuild:
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m_isRebuildFinished = false;
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break;
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case BatchIndexer::WorkMode::Update:
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m_isFirstRunFinished = false;
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break;
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default:
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break;
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}
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BatchIndexer *indexer = new BatchIndexer(folders, blackList, m_stop, mode, target);
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connect(indexer, &BatchIndexer::done, this, &IndexScheduler::firstRunFinished, Qt::QueuedConnection);
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connect(indexer, &BatchIndexer::progress, this, &IndexScheduler::process);
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connect(indexer, &BatchIndexer::basicIndexDone, this, [&](uint size){
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bool success = false;
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if(!(m_statusRecorder->getStatus(INDEX_DATABASE_STATE_KEY).toInt() == IndexStatusRecorder::State::Error)) {
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m_statusRecorder->setStatus(INDEX_DATABASE_STATE_KEY, IndexStatusRecorder::State::Ready);
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success = true;
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}
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Q_EMIT basicIndexDone(size, success);
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});
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connect(indexer, &BatchIndexer::contentIndexDone, this, [&](uint size){
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bool success = false;
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if(!(m_statusRecorder->getStatus(CONTENT_INDEX_DATABASE_STATE_KEY).toInt() == IndexStatusRecorder::State::Error)) {
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m_statusRecorder->setStatus(CONTENT_INDEX_DATABASE_STATE_KEY, IndexStatusRecorder::State::Ready);
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success = true;
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}
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Q_EMIT contentIndexDone(size, success);
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});
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m_threadPool.start(indexer);
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}
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}
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void IndexScheduler::fileIndexEnable(bool enable)
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{
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//Fix me: 快速反复开关会导致反复执行增量更新操作，可优化。
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if(enable) {
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start();
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} else {
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stop();
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}
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}
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void IndexScheduler::updateIndex(const QVector<PendingFile> &files)
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{
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qDebug() << "updateIndex=====";
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m_isUpdateFinished = false;
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m_state = Running;
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IndexUpdater *updateJob = new IndexUpdater(files, m_stop);
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connect(updateJob, &IndexUpdater::done, this, &IndexScheduler::updateFinished, Qt::QueuedConnection);
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m_threadPool.start(updateJob);
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}
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void IndexScheduler::firstRunFinished(BatchIndexer::WorkMode mode)
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{
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switch (mode) {
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case BatchIndexer::WorkMode::Add:
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m_isAddNewPathFinished = true;
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break;
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case BatchIndexer::WorkMode::Rebuild:
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m_isRebuildFinished = true;
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break;
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case BatchIndexer::WorkMode::Update:
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m_isFirstRunFinished = true;
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break;
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default:
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break;
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}
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if(isIdle()) {
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m_state = Idle;
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Q_EMIT stateChange(m_state);
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}
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}
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void IndexScheduler::updateFinished()
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{
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m_isUpdateFinished = true;
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if(isIdle()) {
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m_state = Idle;
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Q_EMIT stateChange(m_state);
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}
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}
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bool IndexScheduler::isIdle()
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{
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return m_isFirstRunFinished && m_isAddNewPathFinished && m_isUpdateFinished && m_isRebuildFinished;
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}
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