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#include "aard_dictionary.hpp"
#include "slof_indexer.hpp"
#include "../coding/bzip2_compressor.hpp"
#include "../coding/file_reader.hpp"
#include "../coding/file_writer.hpp"
#include "../base/base.hpp"
#include "../base/assert.hpp"
#include "../base/logging.hpp"
#include "../base/stl_add.hpp"
#include "../std/algorithm.hpp"
#include "../std/bind.hpp"
#include "../std/fstream.hpp"
#include "../std/iterator.hpp"
#include "../std/string.hpp"
#include "../3party/gflags/src/gflags/gflags.h"
#include "../3party/jansson/myjansson.hpp"
DEFINE_int32(max_uncompressed_article_chunk_size, 899950,
"Max size of chunk of articles, uncompressed.");
DEFINE_int32(compression_level, 9, "BZip2 compression level.");
DEFINE_string(input, "", "Input file.");
DEFINE_string(output, "", "Output dictionary file.");
DEFINE_string(article_file_suffix, "", "Suffix of the article files.");
DEFINE_string(redirects, "", "JSON file with redirects.");
void IndexAard(sl::SlofIndexer & indexer)
{
FileReader inputReader(FLAGS_input.c_str());
sl::AardDictionary inputDictionary(inputReader);
LOG(LINFO, ("Starting indexing, keys:", inputDictionary.KeyCount()));
for (uint32_t id = 0; id < inputDictionary.KeyCount(); ++id)
{
if ((id % 5000) == 0)
{
LOG(LINFO, (id, "done."));
}
// TODO: Handle redirects.
// TODO: Handle several keys for article?
string key, article;
inputDictionary.KeyById(id, key);
inputDictionary.ArticleById(id, article);
if (article.empty())
{
LOG(LWARNING, ("Skipping empty article for:", key));
}
else
{
uint64_t const articleId = indexer.AddArticle(article);
indexer.AddKey(key, articleId);
}
}
LOG(LINFO, ("Logging stats."));
indexer.LogStats();
LOG(LINFO, ("Finishing indexing."));
}
void IndexJson(sl::SlofIndexer & indexer)
{
vector<vector<string> > articles;
LOG(LINFO, ("Reading list of articles."));
{
ifstream fin(FLAGS_input.c_str());
string line;
for (int i = 0; getline(fin, line); ++i)
{
if (line.empty())
continue;
my::Json root(line.c_str());
CHECK_EQUAL(json_typeof(root), JSON_ARRAY, (i, line));
CHECK_EQUAL(3, json_array_size(root), (i, line));
articles.push_back(vector<string>());
for (int j = 0; j < 3; ++j)
{
json_t * pJsonElement = json_array_get(root, j);
CHECK(pJsonElement, (i, line));
CHECK_EQUAL(json_typeof(pJsonElement), JSON_STRING, (i, j, line));
articles.back().push_back(json_string_value(pJsonElement));
}
}
}
LOG(LINFO, ("Articles found:", articles.size()));
LOG(LINFO, ("Sorting list of articles."));
sort(articles.begin(), articles.end());
LOG(LINFO, ("Adding articles."));
map<string, uint64_t> keysToArticles;
for (size_t i = 0; i < articles.size(); ++i)
{
string const url = articles[i][0];
string const title = articles[i][1];
string const fileName = articles[i][2] + FLAGS_article_file_suffix;
articles[i].clear();
FileReader articleReader(fileName);
string article(static_cast<size_t>(articleReader.Size()), 0);
articleReader.Read(0, &article[0], article.size());
uint64_t const articleId = indexer.AddArticle(article);
indexer.AddKey(title, articleId);
CHECK(keysToArticles.insert(make_pair(title, articleId)).second, (i));
if ((i & 127) == 0)
{
LOG(LINFO, ("Done:", i));
}
}
articles.clear();
LOG(LINFO, ("Adding redirects."));
map<string, string> redirects;
{
ifstream fin(FLAGS_redirects.c_str());
string line;
for (int i = 0; getline(fin, line); ++i)
{
if (line.empty())
continue;
my::Json root(line.c_str());
CHECK_EQUAL(json_typeof(root), JSON_ARRAY, (i, line));
CHECK_EQUAL(2, json_array_size(root), (i, line));
string s[2];
for (int j = 0; j < 2; ++j)
{
json_t * pJsonElement = json_array_get(root, j);
CHECK(pJsonElement, (i, j, line));
CHECK_EQUAL(json_typeof(pJsonElement), JSON_STRING, (i, line));
s[j] = json_string_value(pJsonElement);
}
CHECK(redirects.insert(make_pair(s[0], s[1])).second, (s[0], s[1]));
}
}
for (map<string, string>::const_iterator it = redirects.begin(); it != redirects.end(); ++it)
{
string const & src = it->first;
string dst = it->second;
if (keysToArticles.count(src))
{
LOG(LWARNING, ("Conflicting redirect", src, dst));
continue;
}
uint64_t articleId = -1;
for (size_t depth = 0; articleId == -1 && !dst.empty() && depth < 5; ++depth)
{
articleId = ValueForKey(keysToArticles, dst, uint64_t(-1));
dst = ValueForKey(redirects, dst, string());
}
if (articleId == -1)
LOG(LWARNING, ("Redirect not found", it->first, it->second));
else
indexer.AddKey(src, articleId);
}
}
int main(int argc, char ** argv)
{
google::ParseCommandLineFlags(&argc, &argv, true);
CHECK(!FLAGS_input.empty(), ());
CHECK(!FLAGS_output.empty(), ());
FileWriter outputWriter(FLAGS_output.c_str());
{
sl::SlofIndexer indexer(outputWriter,
FLAGS_max_uncompressed_article_chunk_size,
bind(&CompressBZip2, FLAGS_compression_level, _1, _2, _3));
size_t const & inputSize = FLAGS_input.size();
if (inputSize > 5 && FLAGS_input.substr(inputSize - 5) == ".aard")
IndexAard(indexer);
else if (inputSize > 5 && FLAGS_input.substr(inputSize - 5) == ".json")
IndexJson(indexer);
else
CHECK(false, (FLAGS_input));
LOG(LINFO, ("Finishing indexing."));
}
LOG(LINFO, ("Output size:", outputWriter.Pos()));
}
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