void XapianIndex::setDocumentData(Xapian::Document &doc, const DocumentInfo &info,
const string &language) const
{
string title(info.getTitle());
string timestamp(info.getTimestamp());
char timeStr[64];
// Set the document data omindex-style
string record = "url=";
record += info.getLocation();
// The sample will be generated at query time
record += "\nsample=";
record += "\ncaption=";
if (badField(title) == true)
{
// Modify the title if necessary
string::size_type pos = title.find("=");
while (pos != string::npos)
{
title[pos] = ' ';
pos = title.find("=", pos + 1);
}
#ifdef DEBUG
cout << "XapianIndex::setDocumentData: modified title" << endl;
#endif
}
record += title;
record += "\ntype=";
record += info.getType();
// Append a timestamp
record += "\ntimestamp=";
record += timestamp;
// ...and the language
record += "\nlanguage=";
record += language;
#ifdef DEBUG
cout << "XapianIndex::setDocumentData: document data is " << record << endl;
#endif
doc.set_data(record);
// Add this value to allow sorting by date
snprintf(timeStr, 64, "%d", TimeConverter::fromTimestamp(timestamp));
doc.add_value(0, timeStr);
}
Indexer::Indexer(const string &datapath, const string &dbpath)
{
// Hardcode field offsets for simplicity.
const size_t FIELD_ID_NUMBER = 0;
const size_t FIELD_TITLE = 2;
const size_t FIELD_DESCRIPTION = 8;
// Create or open the database we're going to be writing to.
Xapian::WritableDatabase db(dbpath, Xapian::DB_CREATE_OR_OPEN);
// Set up a TermGenerator that we'll use in indexing.
Xapian::TermGenerator termgenerator;
termgenerator.set_stemmer(Xapian::Stem("en"));
ifstream csv(datapath.c_str());
vector<string> fields;
csv_parse_line(csv, fields);
// Check the CSV header line matches our hard-code offsets.
if (fields.at(FIELD_ID_NUMBER) != "id_NUMBER" ||
fields.at(FIELD_TITLE) != "TITLE" ||
fields.at(FIELD_DESCRIPTION) != "DESCRIPTION") {
// The CSV format doesn't match what we expect.
cerr << "CSV format has changed!" << endl;
exit(1);
}
while (csv_parse_line(csv, fields)) {
// 'fields' is a vector mapping from field number to value.
// We look up fields with the 'at' method so we get an exception
// if that field isn't set.
//
// We're just going to use DESCRIPTION, TITLE and id_NUMBER.
const string & description = fields.at(FIELD_DESCRIPTION);
const string & title = fields.at(FIELD_TITLE);
const string & identifier = fields.at(FIELD_ID_NUMBER);
// We make a document and tell the term generator to use this.
Xapian::Document doc;
termgenerator.set_document(doc);
// Index each field with a suitable prefix.
termgenerator.index_text(title, 1, "S");
termgenerator.index_text(description, 1, "XD");
// Index fields without prefixes for general search.
termgenerator.index_text(title);
termgenerator.increase_termpos();
termgenerator.index_text(description);
// Store all the fields for display purposes.
doc.set_data(identifier + "\n" + title + "\n" + description);
// We use the identifier to ensure each object ends up in the
// database only once no matter how many times we run the
// indexer.
string idterm = "Q" + identifier;
doc.add_boolean_term(idterm);
db.replace_document(idterm, doc);
}
}
int main(int argc, char **argv)
{
if(argc < 2) {
usage(argv);
return 1;
}
try {
char *action = argv[1];
char *db_path = argv[2];
if(!strcmp(action, "index")) {
Xapian::WritableDatabase db(db_path, Xapian::DB_CREATE_OR_OPEN);
Xapian::TermGenerator indexer;
Xapian::Stem stemmer("english");
indexer.set_stemmer(stemmer);
std::string doc_txt;
while(true) {
if(std::cin.eof()) break;
std::string line;
getline(std::cin, line);
doc_txt += line;
}
if(!doc_txt.empty()) {
Xapian::Document doc;
doc.set_data(doc_txt);
indexer.set_document(doc);
indexer.index_text(doc_txt);
db.add_document(doc);
std::cout << "Indexed: " << indexer.get_description() << std::endl;
}
db.commit();
} else if(!strcmp(action, "search")) {
if(argc < 4) {
std::cerr << "You must supply a query string" << std::endl;
return 1;
}
Xapian::Database db(db_path);
Xapian::Enquire enquire(db);
std::string query_str = argv[3];
argv+= 4;
while(*argv) {
query_str += ' ';
query_str += *argv++;
}
Xapian::QueryParser qp;
Xapian::Stem stemmer("english");
qp.set_stemmer(stemmer);
qp.set_database(db);
qp.set_stemming_strategy(Xapian::QueryParser::STEM_SOME);
Xapian::Query query = qp.parse_query(query_str);
std::cout << "Parsed query is: " << query.get_description() <<
std::endl;
enquire.set_query(query);
Xapian::MSet matches = enquire.get_mset(0, 10);
std::cout << matches.get_matches_estimated() << " results found.\n";
std::cout << "Matches 1-" << matches.size() << ":\n" << std::endl;
for (Xapian::MSetIterator i = matches.begin();
i != matches.end(); ++i) {
std::cout << i.get_rank() + 1 << ": " << i.get_percent() <<
"% docid=" << *i << " [" <<
i.get_document().get_data()<< "]" << std::endl <<
std::endl;
}
} else {
std::cerr << "Invalid action " << action << std::endl;
usage(argv);
return 1;
}
} catch (const Xapian::Error &error) {
std::cout << "Exception: " << error.get_msg() << std::endl;
}
}
bool
DatabaseWrite::rebuild (GList *cpt_list)
{
string old_path = m_dbPath + "_old";
string rebuild_path = m_dbPath + "_rb";
string db_locale;
// Create the rebuild directory
if (g_mkdir_with_parents (rebuild_path.c_str (), 0755) != 0) {
g_warning ("Unable to create database rebuild directory.");
return false;
}
// check if old unrequired version of db still exists on filesystem
if (g_file_test (old_path.c_str (), G_FILE_TEST_EXISTS)) {
g_warning ("Existing xapian old db was not cleaned previously: '%s'.", old_path.c_str ());
as_utils_delete_dir_recursive (old_path.c_str ());
}
// check if old unrequired version of db still exists on filesystem
if (g_file_test (rebuild_path.c_str (), G_FILE_TEST_EXISTS)) {
g_debug ("Removing old rebuild-dir from previous database rebuild.");
as_utils_delete_dir_recursive (rebuild_path.c_str ());
}
Xapian::WritableDatabase db (rebuild_path, Xapian::DB_CREATE_OR_OVERWRITE);
Xapian::TermGenerator term_generator;
term_generator.set_database(db);
try {
/* this tests if we have spelling suggestions (there must be
* a better way?!?) - this is needed as inmemory does not have
* spelling corrections, but it allows setting the flag and will
* raise a exception much later
*/
db.add_spelling("test");
db.remove_spelling("test");
/* this enables the flag for it (we only reach this line if
* the db supports spelling suggestions)
*/
term_generator.set_flags(Xapian::TermGenerator::FLAG_SPELLING);
} catch (const Xapian::UnimplementedError &error) {
// Ignore
}
for (GList *list = cpt_list; list != NULL; list = list->next) {
AsComponent *cpt = (AsComponent*) list->data;
Xapian::Document doc;
term_generator.set_document (doc);
doc.set_data (as_component_get_name (cpt));
// Sanity check
if (!as_component_has_install_candidate (cpt)) {
g_warning ("Skipped component '%s' from inclusion into database: Does not have an installation candidate.",
as_component_get_id (cpt));
continue;
}
// Package name
gchar **pkgs = as_component_get_pkgnames (cpt);
if (pkgs != NULL) {
gchar *pkgs_cstr = g_strjoinv (";", pkgs);
string pkgs_str = pkgs_cstr;
doc.add_value (XapianValues::PKGNAMES, pkgs_str);
g_free (pkgs_cstr);
for (uint i = 0; pkgs[i] != NULL; i++) {
string pkgname = pkgs[i];
doc.add_term("AP" + pkgname);
if (pkgname.find ("-") != string::npos) {
// we need this to work around xapian oddness
string tmp = pkgname;
replace (tmp.begin (), tmp.end (), '-', '_');
doc.add_term (tmp);
}
// add packagename as meta-data too
term_generator.index_text_without_positions (pkgname, WEIGHT_PKGNAME);
}
}
// Source package name
const gchar *spkgname_cstr = as_component_get_source_pkgname (cpt);
if (spkgname_cstr != NULL) {
string spkgname = spkgname_cstr;
doc.add_value (XapianValues::SOURCE_PKGNAME, spkgname);
if (!spkgname.empty()) {
doc.add_term("AP" + spkgname);
if (spkgname.find ("-") != string::npos) {
// we need this to work around xapian oddness
string tmp = spkgname;
replace (tmp.begin (), tmp.end (), '-', '_');
doc.add_term (tmp);
}
// add packagename as meta-data too
term_generator.index_text_without_positions (spkgname, WEIGHT_PKGNAME);
}
}
// Bundles
Bundles bundles;
GHashTable *bundle_ids = as_component_get_bundles_table (cpt);
if (g_hash_table_size (bundle_ids) > 0) {
string ostr;
g_hash_table_foreach (bundle_ids,
(GHFunc) bundles_hashtable_to_bundleentry,
&bundles);
if (bundles.SerializeToString (&ostr))
doc.add_value (XapianValues::BUNDLES, ostr);
}
// Identifier
string idname = as_component_get_id (cpt);
doc.add_value (XapianValues::IDENTIFIER, idname);
doc.add_term("AI" + idname);
term_generator.index_text_without_positions (idname, WEIGHT_PKGNAME);
// Component name
string cptName = as_component_get_name (cpt);
doc.add_value (XapianValues::CPTNAME, cptName);
// Untranslated component name
string clocale = as_component_get_active_locale (cpt);
as_component_set_active_locale (cpt, "C");
string cptNameGeneric = as_component_get_name (cpt);
doc.add_value (XapianValues::CPTNAME_UNTRANSLATED, cptNameGeneric);
as_component_set_active_locale (cpt, clocale.c_str());
term_generator.index_text_without_positions (cptNameGeneric, WEIGHT_DESKTOP_GENERICNAME);
// Type identifier
string type_str = as_component_kind_to_string (as_component_get_kind (cpt));
doc.add_value (XapianValues::TYPE, type_str);
doc.add_term ("AT" + type_str);
// Origin
string cptOrigin = as_component_get_origin (cpt);
doc.add_value (XapianValues::ORIGIN, cptOrigin);
// URLs
GHashTable *urls_table;
urls_table = as_component_get_urls_table (cpt);
if (g_hash_table_size (urls_table) > 0) {
Urls urls;
string ostr;
g_hash_table_foreach (urls_table,
(GHFunc) urls_hashtable_to_urlentry,
&urls);
if (urls.SerializeToString (&ostr))
doc.add_value (XapianValues::URLS, ostr);
}
// Icons
GPtrArray *icons = as_component_get_icons (cpt);
Icons pbIcons;
for (uint i = 0; i < icons->len; i++) {
AsIcon *icon = AS_ICON (g_ptr_array_index (icons, i));
Icons_Icon *pbIcon = pbIcons.add_icon ();
pbIcon->set_width (as_icon_get_width (icon));
pbIcon->set_height (as_icon_get_height (icon));
if (as_icon_get_kind (icon) == AS_ICON_KIND_REMOTE) {
pbIcon->set_type (Icons_IconType_REMOTE);
pbIcon->set_url (as_icon_get_url (icon));
} else {
/* TODO: Properly support STOCK and LOCAL icons */
pbIcon->set_type (Icons_IconType_CACHED);
pbIcon->set_url (as_icon_get_filename (icon));
}
}
string icons_ostr;
if (pbIcons.SerializeToString (&icons_ostr))
doc.add_value (XapianValues::ICONS, icons_ostr);
// Summary
string cptSummary = as_component_get_summary (cpt);
doc.add_value (XapianValues::SUMMARY, cptSummary);
term_generator.index_text_without_positions (cptSummary, WEIGHT_DESKTOP_SUMMARY);
// Long description
string description = as_component_get_description (cpt);
doc.add_value (XapianValues::DESCRIPTION, description);
term_generator.index_text_without_positions (description, WEIGHT_DESKTOP_SUMMARY);
// Categories
gchar **categories = as_component_get_categories (cpt);
if (categories != NULL) {
string categories_str = "";
for (uint i = 0; categories[i] != NULL; i++) {
if (as_str_empty (categories[i]))
continue;
string cat = categories[i];
string tmp = cat;
transform (tmp.begin (), tmp.end (),
tmp.begin (), ::tolower);
doc.add_term ("AC" + tmp);
categories_str += cat + ";";
}
doc.add_value (XapianValues::CATEGORIES, categories_str);
}
// Add our keywords (with high priority)
gchar **keywords = as_component_get_keywords (cpt);
if (keywords != NULL) {
for (uint i = 0; keywords[i] != NULL; i++) {
if (keywords[i] == NULL)
continue;
string kword = keywords[i];
term_generator.index_text_without_positions (kword, WEIGHT_DESKTOP_KEYWORD);
}
}
// Data of provided items
ASCache::ProvidedItems pbPI;
for (uint j = 0; j < AS_PROVIDED_KIND_LAST; j++) {
AsProvidedKind kind = (AsProvidedKind) j;
string kind_str;
AsProvided *prov = as_component_get_provided_for_kind (cpt, kind);
if (prov == NULL)
continue;
auto *pbProv = pbPI.add_provided ();
pbProv->set_type ((ProvidedItems_ItemType) kind);
kind_str = as_provided_kind_to_string (kind);
gchar **items = as_provided_get_items (prov);
for (uint j = 0; items[j] != NULL; j++) {
string item = items[j];
pbProv->add_item (item);
doc.add_term ("AE" + kind_str + ";" + item);
}
g_free (items);
}
string pitems_ostr;
if (pbPI.SerializeToString (&pitems_ostr))
doc.add_value (XapianValues::PROVIDED_ITEMS, pitems_ostr);
// Add screenshot information
Screenshots screenshots;
GPtrArray *sslist = as_component_get_screenshots (cpt);
for (uint i = 0; i < sslist->len; i++) {
AsScreenshot *sshot = (AsScreenshot*) g_ptr_array_index (sslist, i);
Screenshots_Screenshot *pb_sshot = screenshots.add_screenshot ();
pb_sshot->set_primary (false);
if (as_screenshot_get_kind (sshot) == AS_SCREENSHOT_KIND_DEFAULT)
pb_sshot->set_primary (true);
if (as_screenshot_get_caption (sshot) != NULL)
pb_sshot->set_caption (as_screenshot_get_caption (sshot));
g_ptr_array_foreach (as_screenshot_get_images (sshot),
(GFunc) images_array_to_imageentry,
pb_sshot);
}
string scr_ostr;
if (screenshots.SerializeToString (&scr_ostr))
doc.add_value (XapianValues::SCREENSHOTS, scr_ostr);
// Add compulsory-for-desktop information
gchar **compulsory = as_component_get_compulsory_for_desktops (cpt);
string compulsory_str;
if (compulsory != NULL) {
gchar *str;
str = g_strjoinv (";", compulsory);
compulsory_str = string(str);
g_free (str);
}
doc.add_value (XapianValues::COMPULSORY_FOR, compulsory_str);
// Add project-license
const gchar *project_license = as_component_get_project_license (cpt);
if (project_license != NULL)
doc.add_value (XapianValues::LICENSE, project_license);
// Add project group
const gchar *project_group = as_component_get_project_group (cpt);
if (project_group != NULL)
doc.add_value (XapianValues::PROJECT_GROUP, project_group);
// Add developer name
const gchar *developer_name = as_component_get_developer_name (cpt);
if (developer_name != NULL)
doc.add_value (XapianValues::DEVELOPER_NAME, developer_name);
// Add releases information
Releases pb_rels;
GPtrArray *releases = as_component_get_releases (cpt);
for (uint i = 0; i < releases->len; i++) {
AsRelease *rel = (AsRelease*) g_ptr_array_index (releases, i);
Releases_Release *pb_rel = pb_rels.add_release ();
// version
pb_rel->set_version (as_release_get_version (rel));
// UNIX timestamp
pb_rel->set_unix_timestamp (as_release_get_timestamp (rel));
// release urgency (if set)
if (as_release_get_urgency (rel) != AS_URGENCY_KIND_UNKNOWN)
pb_rel->set_urgency ((Releases_UrgencyType) as_release_get_urgency (rel));
// add location urls
GPtrArray *locations = as_release_get_locations (rel);
for (uint j = 0; j < locations->len; j++) {
pb_rel->add_location ((gchar*) g_ptr_array_index (locations, j));
}
// add checksum info
for (uint j = 0; j < AS_CHECKSUM_KIND_LAST; j++) {
if (as_release_get_checksum (rel, (AsChecksumKind) j) != NULL) {
Releases_Checksum *pb_cs = pb_rel->add_checksum ();
pb_cs->set_type ((Releases_ChecksumType) j);
pb_cs->set_value (as_release_get_checksum (rel, (AsChecksumKind) j));
}
}
// add size info
for (uint j = 0; j < AS_SIZE_KIND_LAST; j++) {
if (as_release_get_size (rel, (AsSizeKind) j) > 0) {
Releases_Size *pb_s = pb_rel->add_size ();
pb_s->set_type ((Releases_SizeType) j);
pb_s->set_value (as_release_get_size (rel, (AsSizeKind) j));
}
}
// add description
if (as_release_get_description (rel) != NULL)
pb_rel->set_description (as_release_get_description (rel));
}
string rel_ostr;
if (pb_rels.SerializeToString (&rel_ostr))
doc.add_value (XapianValues::RELEASES, rel_ostr);
// Languages
GHashTable *langs_table;
langs_table = as_component_get_languages_map (cpt);
if (g_hash_table_size (langs_table) > 0) {
Languages pb_langs;
string ostr;
g_hash_table_foreach (langs_table,
(GHFunc) langs_hashtable_to_langentry,
&pb_langs);
if (pb_rels.SerializeToString (&ostr))
doc.add_value (XapianValues::LANGUAGES, ostr);
}
// Postprocess
string docData = doc.get_data ();
doc.add_term ("AA" + docData);
term_generator.index_text_without_positions (docData, WEIGHT_DESKTOP_NAME);
//! g_debug ("Adding component: %s", as_component_to_string (cpt));
db.add_document (doc);
// infer database locale from single component
// TODO: Do that in a smarter way, if we support multiple databases later.
if (db_locale.empty ())
db_locale = as_component_get_active_locale (cpt);
}
db.set_metadata ("db-schema-version", to_string (AS_DB_SCHEMA_VERSION));
db.set_metadata ("db-locale", db_locale);
db.commit ();
if (g_rename (m_dbPath.c_str (), old_path.c_str ()) < 0) {
g_critical ("Error while moving old database out of the way.");
return false;
}
if (g_rename (rebuild_path.c_str (), m_dbPath.c_str ()) < 0) {
g_critical ("Error while moving rebuilt database.");
return false;
}
as_utils_delete_dir_recursive (old_path.c_str ());
return true;
}
