567 lines
20 KiB
C++
567 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 "global-settings.h"
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#include "chinese-segmentation.h"
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#include "construct-document.h"
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#include <QStandardPaths>
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#define INDEX_PATH (QStandardPaths::writableLocation(QStandardPaths::HomeLocation)+"/.config/org.ukui/index_data").toStdString()
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#define CONTENT_INDEX_PATH (QStandardPaths::writableLocation(QStandardPaths::HomeLocation)+"/.config/org.ukui/content_index_data").toStdString()
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static IndexGenerator *global_instance = nullptr;
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QMutex IndexGenerator::m_mutex;
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QList<Document> *_doc_list_path;
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QMutex _mutex_doc_list_path;
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QList<Document> *_doc_list_content;
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QMutex _mutex_doc_list_content;
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IndexGenerator *IndexGenerator::getInstance(bool rebuild, QObject *parent)
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{
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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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{
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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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{
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// FileUtils::_index_status |= 0x1;
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HandlePathList(messageList);
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qDebug()<<"begin creatAllIndex";
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GlobalSettings::getInstance()->setValue(INDEX_DATABASE_STATE,"0");
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try
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{
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// m_indexer = new Xapian::TermGenerator();
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// m_indexer.set_database(*m_database_path);
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//可以实现拼写纠正
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// m_indexer->set_flags(Xapian::TermGenerator::FLAG_SPELLING);
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// m_indexer.set_stemming_strategy(Xapian::TermGenerator::STEM_SOME);
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// int count =0;
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for (auto i : *_doc_list_path){
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insertIntoDatabase(i);
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// if(++count > 8999){
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// count = 0;
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// m_database_path->commit();
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// }
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}
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m_database_path->commit();
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}
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catch(const Xapian::Error &e)
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{
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qWarning()<<"creatAllIndex fail!"<<QString::fromStdString(e.get_description());
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//need a record
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GlobalSettings::getInstance()->setValue(INDEX_DATABASE_STATE,"1");
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// FileUtils::_index_status &= ~0x1;
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assert(false);
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}
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GlobalSettings::getInstance()->setValue(INDEX_DATABASE_STATE,"2");
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qDebug()<<"finish creatAllIndex";
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// FileUtils::_index_status &= ~0x1;
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_doc_list_path->clear();
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delete _doc_list_path;
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_doc_list_path = 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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{
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// FileUtils::_index_status |= 0x2;
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HandlePathList(messageList);
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qDebug()<<"begin creatAllIndex for content";
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int size = _doc_list_content->size();
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if(!size == 0)
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{
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GlobalSettings::getInstance()->setValue(CONTENT_INDEX_DATABASE_STATE,"0");
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try
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{
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int count =0;
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for (auto i : *_doc_list_content){
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insertIntoContentDatabase(i);
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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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}
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catch(const Xapian::Error &e)
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{
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qWarning()<<"creat content Index fail!"<<QString::fromStdString(e.get_description());
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GlobalSettings::getInstance()->setValue(CONTENT_INDEX_DATABASE_STATE,"1");
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// FileUtils::_index_status &= ~0x2;
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assert(false);
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}
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GlobalSettings::getInstance()->setValue(CONTENT_INDEX_DATABASE_STATE,"2");
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// FileUtils::_index_status &= ~0x2;
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qDebug()<<"finish creatAllIndex for content";
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_doc_list_content->clear();
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delete _doc_list_content;
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_doc_list_content = nullptr;
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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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{
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if(rebuild)
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{
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QDir database(QString::fromStdString(INDEX_PATH));
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if(database.exists())
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qDebug()<<"remove"<<database.removeRecursively();
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database.setPath(QString::fromStdString(CONTENT_INDEX_PATH));
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if(database.exists())
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qDebug()<<"remove"<<database.removeRecursively();
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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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{
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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(m_doc_list_path)
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// delete m_doc_list_path;
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// m_doc_list_path = nullptr;
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// if(m_doc_list_content)
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// delete m_doc_list_content;
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// m_doc_list_content = 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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{
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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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{
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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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{
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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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// m_doc_list_path = 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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{
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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()<<_doc_list_path->size();
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// QList<Document> docList = future.results();
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// m_doc_list_path = new QList<Document>(docList);
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// m_doc_list_path = std::move(future.results());
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// qDebug()<<m_doc_list_path.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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{
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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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{
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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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// m_doc_list_content = new QList<Document>(docList);
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qDebug()<<_doc_list_content->size();
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// QList<Document> docList = future.results();
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// m_doc_list_content = new QList<Document>(docList);
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// m_doc_list_content = 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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Document IndexGenerator::GenerateDocument(const QVector<QString> &list)
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{
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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(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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Document IndexGenerator::GenerateContentDocument(const QString &path)
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{
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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);
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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(path);
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for(int i = 0;i<term.size();++i)
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{
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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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{
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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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QStringList IndexGenerator::IndexSearch(QString indexText)
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{
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QStringList searchResult;
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try
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{
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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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{
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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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{
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// pathTobeDelete->append(QString::fromStdString(data));
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qDebug()<<QString::fromStdString(data)<<"is not exist!!";
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}
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else
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{
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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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}
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catch(const Xapian::Error &e)
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{
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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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//void IndexGenerator::setSynonym()
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//{
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// try
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// {
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// m_database_path->add_synonym("a","A");
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// m_database_path->add_synonym("b","B");
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// m_database_path->add_synonym("c","C");
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// m_database_path->add_synonym("d","D");
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// m_database_path->add_synonym("e","A");
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// m_database_path->add_synonym("f","F");
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// m_database_path->add_synonym("g","G");
|
|
// m_database_path->add_synonym("h","H");
|
|
// m_database_path->add_synonym("i","I");
|
|
// m_database_path->add_synonym("j","J");
|
|
// m_database_path->add_synonym("k","K");
|
|
// m_database_path->add_synonym("l","L");
|
|
// m_database_path->add_synonym("m","M");
|
|
// m_database_path->add_synonym("n","N");
|
|
// m_database_path->add_synonym("o","O");
|
|
// m_database_path->add_synonym("p","P");
|
|
// m_database_path->add_synonym("q","Q");
|
|
// m_database_path->add_synonym("r","R");
|
|
// m_database_path->add_synonym("s","S");
|
|
// m_database_path->add_synonym("t","T");
|
|
// m_database_path->add_synonym("u","U");
|
|
// m_database_path->add_synonym("v","V");
|
|
// m_database_path->add_synonym("w","W");
|
|
// m_database_path->add_synonym("x","X");
|
|
// m_database_path->add_synonym("y","Y");
|
|
// m_database_path->add_synonym("z","Z");
|
|
|
|
// m_database_path->add_synonym("A","a");
|
|
// m_database_path->add_synonym("B","b");
|
|
// m_database_path->add_synonym("C","c");
|
|
// m_database_path->add_synonym("D","d");
|
|
// m_database_path->add_synonym("E","e");
|
|
// m_database_path->add_synonym("F","f");
|
|
// m_database_path->add_synonym("G","g");
|
|
// m_database_path->add_synonym("H","h");
|
|
// m_database_path->add_synonym("I","i");
|
|
// m_database_path->add_synonym("J","j");
|
|
// m_database_path->add_synonym("K","k");
|
|
// m_database_path->add_synonym("L","a");
|
|
// m_database_path->add_synonym("M","m");
|
|
// m_database_path->add_synonym("N","n");
|
|
// m_database_path->add_synonym("O","o");
|
|
// m_database_path->add_synonym("P","p");
|
|
// m_database_path->add_synonym("Q","q");
|
|
// m_database_path->add_synonym("R","r");
|
|
// m_database_path->add_synonym("S","s");
|
|
// m_database_path->add_synonym("T","t");
|
|
// m_database_path->add_synonym("U","u");
|
|
// m_database_path->add_synonym("V","v");
|
|
// m_database_path->add_synonym("W","w");
|
|
// m_database_path->add_synonym("X","x");
|
|
// m_database_path->add_synonym("Y","y");
|
|
// m_database_path->add_synonym("Z","z");
|
|
// m_database_path->commit();
|
|
// }
|
|
// catch(const Xapian::Error &e)
|
|
// {
|
|
// qWarning() <<QString::fromStdString(e.get_description());
|
|
// }
|
|
//}
|
|
|
|
bool IndexGenerator::deleteAllIndex(QStringList *pathlist)
|
|
{
|
|
QStringList *list = pathlist;
|
|
if(list->isEmpty())
|
|
return true;
|
|
for(int i = 0;i<list->size();i++)
|
|
{
|
|
QString doc = list->at(i);
|
|
std::string uniqueterm = FileUtils::makeDocUterm(doc);
|
|
try
|
|
{
|
|
qDebug()<<"--delete start--";
|
|
m_database_path->delete_document(uniqueterm);
|
|
m_database_content->delete_document(uniqueterm);
|
|
qDebug()<<"delete path"<<doc;
|
|
qDebug()<<"delete md5"<<QString::fromStdString(uniqueterm);
|
|
m_database_path->commit();
|
|
m_database_content->commit();
|
|
qDebug()<< "--delete finish--";
|
|
// qDebug()<<"m_database_path->get_lastdocid()!!!"<<m_database_path->get_lastdocid();
|
|
|
|
// qDebug()<<"m_database_path->get_doccount()!!!"<<m_database_path->get_doccount();
|
|
}
|
|
catch(const Xapian::Error &e)
|
|
{
|
|
qWarning()<<QString::fromStdString(e.get_description());
|
|
return false;
|
|
}
|
|
}
|
|
Q_EMIT this->transactionFinished();
|
|
return true;
|
|
}
|
|
|