本文整理汇总了C++中xapian::Document::get_value方法的典型用法代码示例。如果您正苦于以下问题：C++ Document::get_value方法的具体用法？C++ Document::get_value怎么用？C++ Document::get_value使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类xapian::Document的用法示例。
在下文中一共展示了Document::get_value方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: requestImage
QImage ThumbnailProvider::requestImage(const QString &id, QSize *size, const QSize &requestedSize)
{
QImage image;
if (m_thumb32->findImage(id, &image)) {
return image;
} else {
QString filePath;
if (id.at(0) == QLatin1Char('Q')) {
Xapian::Document doc = m_xapianDB->findDocument(id);
if (doc.get_docid() == 0) {
return image;
} else {
filePath = QString::fromStdString(doc.get_value(Database::FilePath));
}
} else {
filePath = id;
}
// Load thumbnail
// KExiv2Iface::KExiv2Previews preview(filePath);
KExiv2Iface::KExiv2 preview(filePath);
image = preview.getExifThumbnail(true);
if (image.isNull()) {
// image = preview.image();
// } else {
// Store thumbnail
// TODO smooth or fast?
image = QImage(filePath).scaled(160, 120, Qt::KeepAspectRatio);
// preview.
kWarning() << "Could not find preview image for" << filePath << image.isNull();
}
// Store the thumbnail into the cache file
if (m_thumb32->insertImage(id, image)) {
kWarning() << "Added preview for" << image.byteCount() << filePath << id;
} else {
kWarning() << "FAILED to add preview for" << filePath << id;
}
}
return image;
}示例2: QueryHandler
void QueryHandler(const QueryMessage &message, const Theron::Address from)
{
search::QueryInfo qi=*(message.query);
std::string resKey(message.resKey);
delete message.query;
std::string segString;
char *output=new char[qi.query.length()*9];
char *input=new char[qi.query.length()*3];
memset(output,0,qi.query.length()*9);
memset(input,0,qi.query.length()*3);
try
{
UErrorCode error = U_ZERO_ERROR;
ucnv_convert("GBK","UTF-8",input, qi.query.length()*3, qi.query.c_str(), qi.query.length(), &error );
bool ret = result->ParagraphProcessing(input, output);
if (ret)
{
int oLen=strlen(output);
char *utf8out=new char[oLen*3];
memset(utf8out,0,oLen*3);
ucnv_convert("UTF-8","GBK",utf8out, oLen*3, output, oLen, &error );
segString=std::string(utf8out);
delete [] utf8out;
}
}
catch (...) {
}
delete [] output;
delete [] input;
std::list<std::string> segList;
if(segString.length()>0)
{
std::vector<std::string> resv;
boost::algorithm::split( resv, segString, boost::algorithm::is_any_of(" ") );
for(std::vector<std::string>::iterator it=resv.begin();it!=resv.end();++it)
{
std::vector<std::string> tmpv;
boost::algorithm::split( tmpv, *it, boost::algorithm::is_any_of("/") );
if(tmpv.size()>1&&tmpv[1]!="w")
segList.push_back(std::string("K")+tmpv[0]);
}
}
search::DocList *dList=new search::DocList();
if(segList.size()>0)
{
Xapian::Query query(Xapian::Query::OP_AND,segList.begin(), segList.end());
while(1)
{
try
{
db.reopen();
Xapian::Enquire enquire(db);
enquire.set_query(query);
Xapian::MSet matches = enquire.get_mset(0, 100);
for (Xapian::MSetIterator i = matches.begin(); i != matches.end(); ++i) {
Xapian::Document doc = i.get_document();
search::IndexInfo info;
info.uid=doc.get_value(1);
info.attMap.insert(std::make_pair(std::string("title"),doc.get_value(2)));
info.content=doc.get_data();
dList->docList.push_back(info);
}
std::cout<<"doc size:"<<dList->docList.size()<<std::endl;
break;
}catch(Xapian::DatabaseModifiedError exception)
{
std::cout<<"try agian"<<std::endl;
}catch(...)
{
break;
}
}
}
Send(QueryResponceMessage(dList,resKey.c_str()), from);
}示例3: main
/** Main routine */
int main(int argc,char **argv)
{
// process inputs that were passed to us via QUERY_STRING
std::cout << "Content-Type:application/javascript;charset=utf-8\r\n\n";
std::string callback;
try
{
// get input parameters
const char *queryEnv = getenv("QUERY_STRING");
std::string queryString;
if (queryEnv)
{
queryString = queryEnv;
}
else if (argc>=2)
{
queryString = argv[1];
}
else
{
std::cout << "No input!\n";
exit(1);
}
// parse query string
std::vector<std::string> parts = split(queryString,'&');
std::string searchFor,callback;
int num=1,page=0;
for (std::vector<std::string>::const_iterator it=parts.begin();it!=parts.end();++it)
{
std::vector<std::string> kv = split(*it,'=');
if (kv.size()==2)
{
std::string val = uriDecode(kv[1]);
if (kv[0]=="q") searchFor = val;
else if (kv[0]=="n") num = fromString<int>(val);
else if (kv[0]=="p") page = fromString<int>(val);
else if (kv[0]=="cb") callback = val;
}
}
std::string indexDir = "doxysearch.db";
if (queryString=="test") // user test
{
bool dbOk = dirExists(indexDir);
if (dbOk)
{
std::cout << "Test successful.";
}
else
{
std::cout << "Test failed: cannot find search index " << indexDir;
}
exit(0);
}
// create query
Xapian::Database db(indexDir);
Xapian::Enquire enquire(db);
Xapian::Query query;
std::vector<std::string> words = split(searchFor,' ');
for (std::vector<std::string>::const_iterator it=words.begin();it!=words.end();++it)
{
query = Xapian::Query(Xapian::Query::OP_OR,query,Xapian::Query(*it));
}
enquire.set_query(query);
// get results
Xapian::MSet matches = enquire.get_mset(page*num,num);
unsigned int hits = matches.get_matches_estimated();
unsigned int offset = page*num;
unsigned int pages = num>0 ? (hits+num-1)/num : 0;
if (offset>hits) offset=hits;
if (offset+num>hits) num=hits-offset;
// write results as JSONP
std::cout << callback.c_str() << "(";
std::cout << "{" << std::endl
<< " \"hits\":" << hits << "," << std::endl
<< " \"first\":" << offset << "," << std::endl
<< " \"count\":" << num << "," << std::endl
<< " \"page\":" << page << "," << std::endl
<< " \"pages\":" << pages << "," << std::endl
<< " \"query\": \"" << escapeString(searchFor) << "\"," << std::endl
<< " \"items\":[" << std::endl;
// foreach search result
unsigned int o = offset;
for (Xapian::MSetIterator i = matches.begin(); i != matches.end(); ++i,++o)
{
std::vector<Fragment> hl;
Xapian::Document doc = i.get_document();
highlighter(doc.get_value(FIELD_DOC),words,hl);
std::cout << " {\"type\": \"" << doc.get_value(FIELD_TYPE) << "\"," << std::endl
<< " \"name\": \"" << doc.get_value(FIELD_NAME) << doc.get_value(FIELD_ARGS) << "\"," << std::endl
<< " \"tag\": \"" << doc.get_value(FIELD_TAG) << "\"," << std::endl
<< " \"url\": \"" << doc.get_value(FIELD_URL) << "\"," << std::endl;
std::cout << " \"fragments\":[" << std::endl;
int c=0;
//.........这里部分代码省略.........
示例4: query
void query(const std::vector<std::string>& arr_queries, const std::vector<std::string>& arr_selection = {}) {
Xapian::Database databases_ir;
try {
Xapian::Database database_ir_object_values(path_database+"object_values/");
databases_ir.add_database(database_ir_object_values);
} catch (const Xapian::Error &e) {
// Database not ready
}
try {
Xapian::Database database_ir_object_descriptions(path_database+"object_descriptions/");
databases_ir.add_database(database_ir_object_descriptions);
} catch (const Xapian::Error &e) {
// Database not ready
}
try {
Xapian::Database database_ir_object_sub_descriptions(path_database+"object_sub_descriptions/");
databases_ir.add_database(database_ir_object_sub_descriptions);
} catch (const Xapian::Error &e) {
// Database not ready
}
// Filter on Type IDs
Xapian::Query query_ir_identifiers;
if (!arr_selection.empty()) {
std::vector<Xapian::Query> arr_query_identifiers;
for (const auto& str_identifier_field : arr_selection) {
arr_query_identifiers.push_back(Xapian::Query("T"+str_identifier_field));
}
query_ir_identifiers = Xapian::Query(Xapian::Query::OP_OR, arr_query_identifiers.begin(), arr_query_identifiers.end());
}
Xapian::QueryParser queryparser;
queryparser.set_database(databases_ir); // Needed to enable specific query flags
queryparser.set_stemmer(Xapian::Stem("en"));
queryparser.set_stemming_strategy(queryparser.STEM_SOME);
queryparser.add_boolean_prefix("identifier", "T");
//queryparser.add_prefix("value", "SV");
unsigned int count_queries = 0;
for (const auto& str_query : arr_queries) {
const auto query_id = count_queries;
count_queries++;
Xapian::Query query_ir = queryparser.parse_query(str_query, Xapian::QueryParser::FLAG_DEFAULT | Xapian::QueryParser::FLAG_WILDCARD);
if (!arr_selection.empty()) {
// Update main query
query_ir = Xapian::Query(Xapian::Query::OP_FILTER, query_ir, query_ir_identifiers);
}
// Run query
Xapian::Enquire enquire(databases_ir);
enquire.set_query(query_ir);
Xapian::MSet arr_msets = enquire.get_mset(num_offset, num_limit);
for (Xapian::MSetIterator iterate_arr_mset = arr_msets.begin(); iterate_arr_mset != arr_msets.end(); iterate_arr_mset++) {
//Xapian::docid did = *iterate_arr_mset;
const int unsigned& nr_rank = iterate_arr_mset.get_rank();
const int unsigned& nr_weight = iterate_arr_mset.get_weight();
const Xapian::Document doc = iterate_arr_mset.get_document();
const std::string& str_identifier = doc.get_value(0);
if (map_query_results.find(str_identifier) == map_query_results.end()) {
std::vector<unsigned int> arr_matches;
arr_matches.push_back(query_id);
const std::string& str_value = (include_value ? doc.get_data() : "");
map_query_results[str_identifier] = std::make_tuple(nr_rank, nr_weight, arr_matches, str_value);
} else {
type_arr_query_result& arr_query_result = map_query_results[str_identifier];
std::get<0>(arr_query_result) += nr_rank;
std::get<1>(arr_query_result) += nr_weight;
std::get<2>(arr_query_result).push_back(query_id);
}
}
}
}示例5: value
QString value(Xapian::Document document, XapianValues::XapianValues index) {
return QString::fromStdString(document.get_value(index));
}