546 lines
20 KiB
C++
546 lines
20 KiB
C++
/*
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* Copyright (C) 2020, 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: zhangpengfei <zhangpengfei@kylinos.cn>
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* Modified by: zhangzihao <zhangzihao@kylinos.cn>
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*
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*/
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#include <QFile>
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#include <QFileInfo>
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#include <QDebug>
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#include <QtConcurrent>
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#include <QFuture>
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#include <QThreadPool>
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#include <QFile>
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#include "file-utils.h"
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#include "index-generator.h"
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#include "chinese-segmentation.h"
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#include <QStandardPaths>
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#include <malloc.h>
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#define INDEX_PATH (QStandardPaths::writableLocation(QStandardPaths::HomeLocation)+"/.config/org.ukui/ukui-search/index_data").toStdString()
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#define CONTENT_INDEX_PATH (QStandardPaths::writableLocation(QStandardPaths::HomeLocation)+"/.config/org.ukui/ukui-search/content_index_data").toStdString()
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using namespace UkuiSearch;
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static IndexGenerator *global_instance = nullptr;
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QMutex IndexGenerator::m_mutex;
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//QVector<Document> *UkuiSearch::g_docListForPath;
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//QMutex UkuiSearch::g_mutexDocListForPath;
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//QVector<Document> *UkuiSearch::g_docListForContent;
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//QMutex UkuiSearch::g_mutexDocListForContent;
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QMutex IndexGenerator::g_mutexDocListForPath;
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QMutex IndexGenerator::g_mutexDocListForContent;
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QVector<Document> IndexGenerator::g_docListForPath = QVector<Document>();
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QVector<Document> IndexGenerator::g_docListForContent = QVector<Document>();
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IndexGenerator *IndexGenerator::getInstance(bool rebuild, QObject *parent) {
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QMutexLocker locker(&m_mutex);
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if(!global_instance) {
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qDebug() << "IndexGenerator=================";
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global_instance = new IndexGenerator(rebuild, parent);
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}
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qDebug() << "global_instance" << global_instance;
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qDebug() << "QThread::currentThreadId()" << QThread::currentThreadId();
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return global_instance;
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}
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bool IndexGenerator::setIndexdataPath() {
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return true;
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}
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//文件名索引
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bool IndexGenerator::creatAllIndex(QQueue<QVector<QString> > *messageList) {
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HandlePathList(messageList);
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// if(g_docListForPath == NULL) {
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// return false;
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// }
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if(IndexGenerator::g_docListForPath.isEmpty()) {
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return false;
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}
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qDebug() << "begin creatAllIndex";
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try {
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for(auto i : IndexGenerator::g_docListForPath) {
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insertIntoDatabase(i);
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}
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m_database_path->commit();
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} catch(const Xapian::Error &e) {
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qWarning() << "creatAllIndex fail!" << QString::fromStdString(e.get_description());
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//need a record
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IndexStatusRecorder::getInstance()->setStatus(INDEX_DATABASE_STATE, "1");
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assert(false);
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}
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qDebug() << "finish creatAllIndex";
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IndexGenerator::g_docListForPath.clear();
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IndexGenerator::g_docListForPath.squeeze();
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QVector<Document>().swap(IndexGenerator::g_docListForPath);
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// delete g_docListForPath;
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// g_docListForPath = nullptr;
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return true;
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}
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//文件内容索引
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bool IndexGenerator::creatAllIndex(QQueue<QString> *messageList) {
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HandlePathList(messageList);
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qDebug() << "begin creatAllIndex for content";
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if(IndexGenerator::g_docListForContent.isEmpty()) {
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return false;
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}
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int size = IndexGenerator::g_docListForContent.size();
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qDebug() << "begin creatAllIndex for content" << size;
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if(!size == 0) {
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try {
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int count = 0;
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for(Document i : IndexGenerator::g_docListForContent) {
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if(!i.isRequiredDeleted()) {
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m_database_content->replace_document(i.getUniqueTerm(), i.getXapianDocument());
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} else {
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m_database_content->delete_document(i.getUniqueTerm());
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}
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if(++count > 999) {
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count = 0;
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m_database_content->commit();
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}
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}
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m_database_content->commit();
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} catch(const Xapian::Error &e) {
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qWarning() << "creat content Index fail!" << QString::fromStdString(e.get_description());
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IndexStatusRecorder::getInstance()->setStatus(CONTENT_INDEX_DATABASE_STATE, "1");
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assert(false);
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}
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qDebug() << "finish creatAllIndex for content";
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IndexGenerator::g_docListForContent.clear();
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IndexGenerator::g_docListForContent.squeeze();
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QVector<Document>().swap(IndexGenerator::g_docListForContent);
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malloc_trim(0);
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}
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Q_EMIT this->transactionFinished();
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return true;
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}
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IndexGenerator::IndexGenerator(bool rebuild, QObject *parent) : QObject(parent) {
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QDir database(QString::fromStdString(INDEX_PATH));
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if(database.exists()) {
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if(rebuild)
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qDebug() << "remove" << database.removeRecursively();
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} else {
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qDebug() << "create index path" << database.mkpath(QString::fromStdString(INDEX_PATH));
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}
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database.setPath(QString::fromStdString(CONTENT_INDEX_PATH));
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if(database.exists()) {
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if(rebuild)
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qDebug() << "remove" << database.removeRecursively();
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} else {
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qDebug() << "create content index path" << database.mkpath(QString::fromStdString(CONTENT_INDEX_PATH));
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}
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m_database_path = new Xapian::WritableDatabase(INDEX_PATH, Xapian::DB_CREATE_OR_OPEN);
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m_database_content = new Xapian::WritableDatabase(CONTENT_INDEX_PATH, Xapian::DB_CREATE_OR_OPEN);
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}
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IndexGenerator::~IndexGenerator() {
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QMutexLocker locker(&m_mutex);
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qDebug() << "~IndexGenerator";
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if(m_database_path)
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m_database_path->~WritableDatabase();
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// delete m_database_path;
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m_database_path = nullptr;
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if(m_database_content)
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m_database_content->~WritableDatabase();
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// delete m_database_content;
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m_database_path = nullptr;
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m_database_content = nullptr;
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global_instance = nullptr;
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// if(m_index_map)
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// delete m_index_map;
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// m_index_map = nullptr;
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// if(mg_docListForPath)
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// delete mg_docListForPath;
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// mg_docListForPath = nullptr;
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// if(mg_docListForContent)
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// delete mg_docListForContent;
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// mg_docListForContent = nullptr;
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// if(m_index_data_path)
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// delete m_index_data_path;
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// m_index_data_path = nullptr;
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// if(m_indexer)
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// delete m_indexer;
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// m_indexer = nullptr;
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// GlobalSettings::getInstance()->setValue(INDEX_DATABASE_STATE, "2");
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// GlobalSettings::getInstance()->setValue(CONTENT_INDEX_DATABASE_STATE, "2");
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// GlobalSettings::getInstance()->setValue(INDEX_GENERATOR_NORMAL_EXIT, "2");
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qDebug() << "QThread::currentThreadId()" << QThread::currentThreadId();
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qDebug() << "~IndexGenerator end";
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}
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void IndexGenerator::insertIntoDatabase(Document& doc) {
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// qDebug()<< "--index start--";
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Xapian::Document document = doc.getXapianDocument();
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// m_indexer.set_document(document);
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// qDebug()<<doc.getIndexText();
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// for(auto i : doc.getIndexText()){
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// m_indexer.index_text(i.toStdString());
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// }
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// qDebug()<<"insert m_database_path:"<<QString::fromStdString(document.get_data());
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// qDebug()<<"document:"<<QString::fromStdString(document.get_description());
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Xapian::docid innerId = m_database_path->replace_document(doc.getUniqueTerm(), document);
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// qDebug()<<"replace doc docid="<<static_cast<int>(innerId);
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// qDebug()<< "--index finish--";
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return;
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}
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//#define fun(a) a=new ;printf()
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void IndexGenerator::insertIntoContentDatabase(Document& doc) {
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Xapian::docid innerId = m_database_content->replace_document(doc.getUniqueTerm(), doc.getXapianDocument());
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// qDebug()<<"replace doc docid="<<static_cast<int>(innerId);
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// qDebug()<< "--index finish--";
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return;
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}
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void IndexGenerator::HandlePathList(QQueue<QVector<QString>> *messageList) {
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qDebug() << "Begin HandlePathList!";
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qDebug() << messageList->size();
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// qDebug()<<QString::number(quintptr(QThread::currentThreadId()));
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// QFuture<Document> future = QtConcurrent::mapped(*messageList,&IndexGenerator::GenerateDocument);
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// future.waitForFinished();
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// QList<Document> docList = future.results();
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// future.cancel();
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// mg_docListForPath = new QList<Document>(docList);
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QThreadPool pool;
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pool.setMaxThreadCount(((QThread::idealThreadCount() - 1) / 2) + 1);
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pool.setExpiryTimeout(100);
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ConstructDocumentForPath *constructer;
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while(!messageList->isEmpty()) {
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constructer = new ConstructDocumentForPath(messageList->dequeue());
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pool.start(constructer);
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}
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qDebug() << "pool finish" << pool.waitForDone(-1);
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// if(constructer)
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// delete constructer;
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// constructer = nullptr;
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// qDebug()<<g_docListForPath->size();
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// qWarning() << g_docListForPath;
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// QList<Document> docList = future.results();
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// mg_docListForPath = new QList<Document>(docList);
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// mg_docListForPath = std::move(future.results());
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// qDebug()<<mg_docListForPath.size();
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qDebug() << "Finish HandlePathList!";
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return;
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}
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void IndexGenerator::HandlePathList(QQueue<QString> *messageList) {
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qDebug() << "Begin HandlePathList for content index!";
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qDebug() << messageList->size();
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// qDebug()<<QString::number(quintptr(QThread::currentThreadId()));
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ChineseSegmentation::getInstance();
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ConstructDocumentForContent *constructer;
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QThreadPool pool;
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// pool.setMaxThreadCount(((QThread::idealThreadCount() - 1) / 2) + 1);
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pool.setMaxThreadCount(1);
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pool.setExpiryTimeout(100);
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while(!messageList->isEmpty()) {
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constructer = new ConstructDocumentForContent(messageList->dequeue());
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pool.start(constructer);
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}
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qDebug() << "pool finish" << pool.waitForDone(-1);
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// if(constructer)
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// delete constructer;
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// constructer = nullptr;
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// QFuture<Document> future = QtConcurrent::mapped(*messageList,&IndexGenerator::GenerateContentDocument);
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// future.waitForFinished();
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// ChineseSegmentation::getInstance()->~ChineseSegmentation();
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// QList<Document> docList = future.results();
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// mg_docListForContent = new QList<Document>(docList);
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// qDebug()<<g_docListForContent->size();
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// QList<Document> docList = future.results();
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// mg_docListForContent = new QList<Document>(docList);
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// mg_docListForContent = std::move(future.results());
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// future.cancel();
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qDebug() << "Finish HandlePathList for content index!";
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return;
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}
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//deprecated
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Document IndexGenerator::GenerateDocument(const QVector<QString> &list) {
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Document doc;
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// qDebug()<<QString::number(quintptr(QThread::currentThreadId()));
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//0-filename 1-filepathname 2-file or dir
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QString index_text = list.at(0);
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QString sourcePath = list.at(1);
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index_text = index_text.replace("", " ");
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index_text = index_text.simplified();
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//不带多音字版
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// QString pinyin_text = FileUtils::find(QString(list.at(0)).replace(".","")).replace("", " ").simplified();
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//多音字版
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//现加入首字母
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QStringList pinyin_text_list = FileUtils::findMultiToneWords(QString(list.at(0)).replace(".", ""));
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for(QString& i : pinyin_text_list) {
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i.replace("", " ");
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i = i.simplified();
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}
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QString uniqueterm = QString::fromStdString(FileUtils::makeDocUterm(sourcePath));
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QString upTerm = QString::fromStdString(FileUtils::makeDocUterm(sourcePath.section("/", 0, -2, QString::SectionIncludeLeadingSep)));
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// QString uniqueterm1 = QString::fromStdString(QCryptographicHash::hash(sourcePath.toUtf8(),QCryptographicHash::Md5).toStdString());
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/*--------------------------------------------------------------------*/
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//QByteArray 和 QString 之间会进行隐式转换,造成字符串被截断等意想不到的后果!!!!!!! zpf
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// if(uniqueterm1!=uniqueterm){
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// qDebug()<<"-----------------------------------------start";
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// qDebug()<<uniqueterm1;
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// qDebug()<<uniqueterm;
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// qDebug()<<"------------------------------------------finish";
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// }
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/*--------------------------------------------------------------------*/
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doc.setData(sourcePath);
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doc.setUniqueTerm(uniqueterm);
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doc.addTerm(upTerm);
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doc.addValue(1, list.at(2));
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QStringList temp;
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temp.append(index_text);
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temp.append(pinyin_text_list);
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doc.setIndexText(temp);
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return doc;
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}
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//deprecated
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Document IndexGenerator::GenerateContentDocument(const QString &path) {
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// 构造文本索引的document
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QString content;
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QStringList tmp;
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QVector<SKeyWord> term;
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SKeyWord skw;
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Document doc;
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QString uniqueterm;
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QString upTerm;
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FileReader::getTextContent(path, content);
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term = ChineseSegmentation::getInstance()->callSegement(content.toStdString());
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// QStringList term = content.split("");
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doc.setData(content);
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doc.setUniqueTerm(uniqueterm);
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doc.addTerm(upTerm);
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doc.addValue(1, path);
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for(int i = 0; i < term.size(); ++i) {
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doc.addPosting(term.at(i).word, term.at(i).offsets, static_cast<int>(term.at(i).weight));
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}
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// Document doc;
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// doc.setData(content);
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// doc.setUniqueTerm(uniqueterm);
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// doc.addTerm(upTerm);
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// doc.addValue(path);
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// int pos = 0;
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// for(QString i : term)
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// {
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// doc.addPosting(i.toStdString(),QVector<size_t>() << ++pos,1);
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// }
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content.clear();
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term.clear();
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return doc;
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}
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bool IndexGenerator::isIndexdataExist() {
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// Xapian::Database db(m_index_data_path->toStdString());
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return true;
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}
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//deprecated
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QStringList IndexGenerator::IndexSearch(QString indexText) {
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QStringList searchResult;
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try {
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qDebug() << "--search start--";
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Xapian::Database db(INDEX_PATH);
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Xapian::Enquire enquire(db);
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Xapian::QueryParser qp;
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qp.set_default_op(Xapian::Query::OP_PHRASE);
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qp.set_database(db);
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auto userInput = indexText;
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std::string queryStr = indexText.replace("", " ").toStdString();
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// std::string s =db.get_spelling_suggestion(queryStr,10);
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// qDebug()<<"spelling_suggestion!"<<QString::fromStdString(s);
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qDebug() << "queryStr!" << QString::fromStdString(queryStr);
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//Creat a query
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Xapian::Query queryPhrase = qp.parse_query(queryStr, Xapian::QueryParser::FLAG_PHRASE);
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std::vector<Xapian::Query> v;
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for(int i = 0; i < userInput.size(); i++) {
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v.push_back(Xapian::Query(QString(userInput.at(i)).toStdString()));
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qDebug() << userInput.at(i);
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qDebug() << QString::fromStdString(Xapian::Query(QString(userInput.at(i)).toStdString()).get_description());
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}
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Xapian::Query queryNear = Xapian::Query(Xapian::Query::OP_NEAR, v.begin(), v.end());
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Xapian::Query query = Xapian::Query(Xapian::Query::OP_AND, queryNear, queryPhrase);
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qDebug() << QString::fromStdString(query.get_description());
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enquire.set_query(query);
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Xapian::MSet result = enquire.get_mset(0, 9999);
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qDebug() << "find results count=" << static_cast<int>(result.get_matches_estimated());
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// QStringList *pathTobeDelete = new QStringList;
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//get search result
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for(auto it = result.begin(); it != result.end(); ++it) {
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Xapian::Document doc = it.get_document();
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std::string data = doc.get_data();
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Xapian::weight docScoreWeight = it.get_weight();
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Xapian::percent docScorePercent = it.get_percent();
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// QFileInfo *info = new QFileInfo(QString::fromStdString(data));
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QFileInfo info(QString::fromStdString(data));
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if(!info.exists()) {
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// pathTobeDelete->append(QString::fromStdString(data));
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qDebug() << QString::fromStdString(data) << "is not exist!!";
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} else {
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searchResult.append(QString::fromStdString(data));
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}
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qDebug() << "doc=" << QString::fromStdString(data) << ",weight=" << docScoreWeight << ",percent=" << docScorePercent;
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}
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// //Delete those path doc which is not already exist.
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// if(!pathTobeDelete->isEmpty())
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// deleteAllIndex(pathTobeDelete);
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qDebug() << "--search finish--";
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} catch(const Xapian::Error &e) {
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qDebug() << QString::fromStdString(e.get_description());
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}
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return searchResult;
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}
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bool IndexGenerator::deleteAllIndex(QStringList *pathlist) {
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QStringList *list = pathlist;
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if(list->isEmpty())
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return true;
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try {
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qDebug() << "--delete start--";
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for(int i = 0; i < list->size(); i++) {
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QString doc = list->at(i);
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std::string uniqueterm = FileUtils::makeDocUterm(doc);
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std::string upterm = "ZEEKERUPTERM" + FileUtils::makeDocUterm(doc);
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m_database_path->delete_document(uniqueterm);
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m_database_content->delete_document(uniqueterm);
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//delete all files under it if it's a dir.
|
|
m_database_path->delete_document(upterm);
|
|
m_database_content->delete_document(upterm);
|
|
qDebug() << "delete path" << doc;
|
|
// qDebug() << "delete md5" << QString::fromStdString(uniqueterm);
|
|
|
|
// qDebug()<<"m_database_path->get_lastdocid()!!!"<<m_database_path->get_lastdocid();
|
|
// qDebug()<<"m_database_path->get_doccount()!!!"<<m_database_path->get_doccount();
|
|
}
|
|
m_database_path->commit();
|
|
m_database_content->commit();
|
|
qDebug() << "--delete finish--";
|
|
} catch(const Xapian::Error &e) {
|
|
qWarning() << QString::fromStdString(e.get_description());
|
|
return false;
|
|
}
|
|
|
|
Q_EMIT this->transactionFinished();
|
|
return true;
|
|
}
|
|
|
|
bool IndexGenerator::deleteContentIndex(QStringList *pathlist)
|
|
{
|
|
if(pathlist->isEmpty())
|
|
return true;
|
|
try {
|
|
qDebug() << "--delete start--";
|
|
for(int i = 0; i < pathlist->size(); i++) {
|
|
QString doc = pathlist->at(i);
|
|
std::string uniqueterm = FileUtils::makeDocUterm(doc);
|
|
m_database_content->delete_document(uniqueterm);
|
|
qDebug() << "delete path" << doc;
|
|
}
|
|
m_database_content->commit();
|
|
qDebug() << "--delete finish--";
|
|
} catch(const Xapian::Error &e) {
|
|
qWarning() << QString::fromStdString(e.get_description());
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool IndexGenerator::updateIndex(QVector<PendingFile> *pendingFiles)
|
|
{
|
|
|
|
QQueue<QVector<QString>> *fileIndexInfo = new QQueue<QVector<QString>>;
|
|
QQueue<QString> *fileContentIndexInfo = new QQueue<QString>;
|
|
QStringList *deleteList = new QStringList;
|
|
QStringList *contentDeleteList = new QStringList;
|
|
for(PendingFile file : *pendingFiles) {
|
|
if(file.shouldRemoveIndex()) {
|
|
|
|
deleteList->append(file.path());
|
|
continue;
|
|
}
|
|
fileIndexInfo->append(QVector<QString>() << file.path().section("/" , -1) << file.path() << QString(file.isDir() ? "1" : "0"));
|
|
if((!file.path().split(".").isEmpty()) && (true == targetFileTypeMap[file.path().section("/" , -1) .split(".").last()])) {
|
|
if(!FileUtils::isEncrypedOrUnreadable(file.path())) {
|
|
fileContentIndexInfo->append(file.path());
|
|
} else {
|
|
contentDeleteList->append(file.path());
|
|
}
|
|
}
|
|
|
|
}
|
|
if(!deleteList->isEmpty()) {
|
|
deleteAllIndex(deleteList);
|
|
}
|
|
if(!contentDeleteList->isEmpty()) {
|
|
deleteContentIndex(contentDeleteList);
|
|
}
|
|
if(!fileIndexInfo->isEmpty()) {
|
|
creatAllIndex(fileIndexInfo);
|
|
}
|
|
if(!fileContentIndexInfo->isEmpty()) {
|
|
creatAllIndex(fileContentIndexInfo);
|
|
}
|
|
delete fileIndexInfo;
|
|
delete fileContentIndexInfo;
|
|
return true;
|
|
}
|
|
|