/**
* Implements post processing of recipes. recipes are extracted
* ingredients are scrubbed and recipes are clustered. The clustered
* recipes are added back to the index.
*
* @param string $index_name index name of the current crawl.
*/
function postProcessing($index_name)
{
global $INDEXING_PLUGINS;
if (!class_exists("SplHeap")) {
crawlLog("...Recipe Plugin Requires SPLHeap for clustering!");
crawlLog("...Aborting plugin");
return;
}
$locale_tag = guessLocale();
setLocaleObject($locale_tag);
$search_controller = new SearchController($INDEXING_PLUGINS);
$query = "recipe:all i:{$index_name}";
crawlLog("...Running Recipe Plugin!");
crawlLog("...Finding docs tagged as recipes.");
$more_docs = true;
$raw_recipes = array();
$limit = 0;
$num = 100;
while ($more_docs) {
$results = @$search_controller->queryRequest($query, $num, $limit, 1, $index_name);
if (isset($results["PAGES"]) && ($num_results = count($results["PAGES"])) > 0) {
$raw_recipes = array_merge($raw_recipes, $results["PAGES"]);
}
crawlLog("Scanning recipes {$limit} through " . ($limit + $num_results) . ".");
$limit += $num_results;
if (isset($results["SAVE_POINT"])) {
$end = true;
foreach ($results["SAVE_POINT"] as $save_point) {
if ($save_point != -1) {
$end = false;
}
}
if ($end) {
$more_docs = false;
}
} else {
$more_docs = false;
}
}
crawlLog("...Clustering.");
// only cluster if would make more than one cluster
if (count($raw_recipes) * CLUSTER_RATIO > 1) {
$recipes = array();
$i = 0;
foreach ($raw_recipes as $raw_recipe) {
$description = $raw_recipe[self::DESCRIPTION];
$ingredients = explode("||", $description);
if (is_array($ingredients) && count($ingredients) > 1) {
$recipes[$i][0] = $raw_recipe[self::TITLE];
$recipes[$i][1] = $ingredients;
$recipes[$i][2] = crawlHash($raw_recipe[self::URL]);
$recipes[$i][3] = $raw_recipe;
$i++;
}
}
$recipes_ingredients = array();
$count = count($recipes);
foreach ($recipes as $key => $recipe) {
foreach ($recipe[1] as $index => $ingredient) {
if (strlen($ingredient) != 0 && substr($ingredient, strlen($ingredient) - 1) != ":") {
$mainIngredient = $this->getIngredientName((string) $ingredient);
if (strlen($mainIngredient) != 0) {
$recipe[1][$index] = $mainIngredient;
} else {
unset($recipe[1][$index]);
}
} else {
unset($recipe[1][$index]);
}
}
$recipes[$key] = $recipe;
}
$count = count($recipes);
$k = 0;
$basic_ingredients = array('onion', 'oil', 'cheese', 'pepper', 'sauce', 'salt', 'milk', 'butter', 'flour', 'cake', 'garlic', 'cream', 'soda', 'honey', 'powder', 'sauce', 'water', 'vanilla', 'pepper', 'bread', 'sugar', 'vanillaextract', 'celery', 'seasoning', 'syrup', 'skewers', 'egg', 'muffin', 'ginger', 'basil', 'oregano', 'cinammon', 'cumin', 'mayonnaise', 'mayo', 'chillipowder', 'lemon', 'greens', 'yogurt', 'margarine', 'asparagus', 'halfhalf', 'pancakemix', 'coffee', 'cookies', 'lime', 'chillies', 'cilantro', 'rosemary', 'vanillaextract', 'vinegar', 'shallots', 'wine', 'cornmeal', 'nonstickspray');
for ($i = 0; $i < $count; $i++) {
$recipe1_main_ingredient = "";
$recipe1 = $recipes[$i][1];
$recipe_name = $recipes[$i][0];
$recipe1_title = strtolower($recipes[$i][0]);
$distinct_ingredients[$recipe_name] = $recipes[$i][1];
$doc_keys[$recipe_name] = $recipes[$i][2];
$recipes_summary[$recipe_name] = $recipes[$i][3];
for ($j = $i + 1; $j < $count; $j++) {
$recipe2_main_ingredient = "";
$recipe2 = $recipes[$j][1];
$recipe2_title = strtolower($recipes[$j][0]);
$weights[$k][0] = $recipes[$i][0];
$weights[$k][1] = $recipes[$j][0];
$merge_array = array_merge($recipe1, $recipe2);
$vector_array = array_unique($merge_array);
sort($vector_array);
$recipe1_vector = array_fill_keys($vector_array, 0);
$recipe2_vector = array_fill_keys($vector_array, 0);
foreach ($recipe1 as $ingredient) {
if ($ingredient != "" && !in_array($ingredient, $basic_ingredients)) {
if (strstr($recipe1_title, $ingredient)) {
$recipe1_main_ingredient = $ingredient;
}
}
$recipe1_vector[$ingredient] = 1;
}
foreach ($recipe2 as $ingredient) {
if ($ingredient != "" && !in_array($ingredient, $basic_ingredients)) {
if (strstr($recipe2_title, $ingredient)) {
$recipe2_main_ingredient = $ingredient;
}
}
$recipe2_vector[$ingredient] = 1;
}
$edge_weight = 0;
$matches = 1;
foreach ($vector_array as $vector) {
$diff = $recipe1_vector[$vector] - $recipe2_vector[$vector];
$vector_diff[$vector] = pow($diff, 2);
if (abs($diff) == 1) {
$matches += 1;
}
$edge_weight += $vector_diff[$vector];
}
$main_ingredient_match = 1;
if ($recipe1_main_ingredient != $recipe2_main_ingredient) {
$main_ingredient_match = 1000;
}
$edge_weight = sqrt($edge_weight) * $matches * $main_ingredient_match;
$weights[$k][2] = $edge_weight;
$k++;
}
}
crawlLog("...Making new shard with clustered recipes as docs.");
$clusters = kruskalClustering($weights, $count, $distinct_ingredients);
$index_shard = new IndexShard("cluster_shard");
$word_lists = array();
$recipe_sites = array();
foreach ($clusters as $cluster) {
$count = count($cluster);
for ($i = 0; $i < $count - 1; $i++) {
$meta_ids = array();
$summary = array();
$recipe = $cluster[$i];
$summary[self::URL] = $recipes_summary[$recipe][self::URL];
$summary[self::TITLE] = $recipes_summary[$recipe][self::TITLE];
$summary[self::DESCRIPTION] = $recipes_summary[$recipe][self::DESCRIPTION];
$summary[self::TIMESTAMP] = $recipes_summary[$recipe][self::TIMESTAMP];
$summary[self::ENCODING] = $recipes_summary[$recipe][self::ENCODING];
$summary[self::HASH] = $recipes_summary[$recipe][self::HASH];
$doc_keys[$recipe] = crawlHash($summary[self::URL], true);
$hash_rhost = "r" . substr(crawlHash(UrlParser::getHost($summary[self::URL]) . "/", true), 1);
$doc_keys[$recipe] .= $summary[self::HASH] . $hash_rhost;
$summary[self::TYPE] = $recipes_summary[$recipe][self::TYPE];
$summary[self::HTTP_CODE] = $recipes_summary[$recipe][self::HTTP_CODE];
$recipe_sites[] = $summary;
$meta_ids[] = "ingredient:" . trim($cluster["ingredient"]);
crawlLog("ingredient:" . $cluster["ingredient"]);
if (!$index_shard->addDocumentWords($doc_keys[$recipe], self::NEEDS_OFFSET_FLAG, $word_lists, $meta_ids, true, false)) {
crawlLog("Problem inserting recipe: " . $summary[self::TITLE]);
}
}
}
$shard_string = $index_shard->save(true);
$index_shard = IndexShard::load("cluster_shard", $shard_string);
unset($shard_string);
crawlLog("...Adding recipe shard to index archive bundle");
$dir = CRAWL_DIR . "/cache/" . self::index_data_base_name . $index_name;
$index_archive = new IndexArchiveBundle($dir, false);
if ($index_shard->word_docs_packed) {
$index_shard->unpackWordDocs();
}
$generation = $index_archive->initGenerationToAdd($index_shard);
if (isset($recipe_sites)) {
crawlLog("... Adding " . count($recipe_sites) . " recipe docs.");
$index_archive->addPages($generation, self::SUMMARY_OFFSET, $recipe_sites, 0);
}
$k = 0;
foreach ($recipe_sites as $site) {
$recipe = $site[self::TITLE];
$hash = crawlHash($site[self::URL], true) . $site[self::HASH] . "r" . substr(crawlHash(UrlParser::getHost($site[self::URL]) . "/", true), 1);
$summary_offsets[$hash] = $site[self::SUMMARY_OFFSET];
}
$index_shard->changeDocumentOffsets($summary_offsets);
$index_archive->addIndexData($index_shard);
$index_archive->saveAndAddCurrentShardDictionary();
$index_archive->dictionary->mergeAllTiers();
$this->db->setWorldPermissionsRecursive(CRAWL_DIR . '/cache/' . self::index_data_base_name . $index_name);
crawlLog("...Recipe plugin finished.");
}
}
/**
* Runs the QueryTool on the supplied command line arguments
*/
function start()
{
global $argv, $INDEXING_PLUGINS;
if (!isset($argv[1])) {
$this->usageMessageAndExit();
}
$query = $argv[1];
$results_per_page = isset($argv[2]) ? $argv[2] : 10;
$limit = isset($argv[3]) ? $argv[3] : 0;
setLocaleObject(getLocaleTag());
$start_time = microtime();
$controller = new SearchController($INDEXING_PLUGINS);
$data = $controller->queryRequest($query, $results_per_page, $limit);
if (!isset($data['PAGES'])) {
$data['PAGES'] = array();
}
foreach ($data['PAGES'] as $page) {
echo "============\n";
echo "TITLE: " . trim($page[self::TITLE]) . "\n";
echo "URL: " . trim($page[self::URL]) . "\n";
echo "IPs: ";
if (isset($page[self::IP_ADDRESSES])) {
foreach ($page[self::IP_ADDRESSES] as $address) {
echo $address . " ";
}
}
echo "\n";
echo "DESCRIPTION: " . wordwrap(trim($page[self::DESCRIPTION])) . "\n";
echo "Rank: " . $page[self::DOC_RANK] . "\n";
echo "Relevance: " . $page[self::RELEVANCE] . "\n";
echo "Proximity: " . $page[self::PROXIMITY] . "\n";
echo "Score: " . $page[self::SCORE] . "\n";
echo "============\n\n";
}
$data['ELAPSED_TIME'] = changeInMicrotime($start_time);
echo "QUERY STATISTICS\n";
echo "============\n";
echo "ELAPSED TIME: " . $data['ELAPSED_TIME'] . "\n";
if (isset($data['LIMIT'])) {
echo "LOW: " . $data['LIMIT'] . "\n";
}
if (isset($data['HIGH'])) {
echo "HIGH: " . min($data['TOTAL_ROWS'], $data['LIMIT'] + $data['RESULTS_PER_PAGE']) . "\n";
}
if (isset($data['TOTAL_ROWS'])) {
echo "TOTAL ROWS: " . $data['TOTAL_ROWS'] . "\n";
}
if (isset($data['ERROR'])) {
echo $data['ERROR'] . "\n";
}
}
// ######
/*
Now we can do queries! First do a simple search on art and print the results
*/
echo "\n\n\nAn example of a query request with the search API:\n";
$query = "art i:1317414322";
/* i:1317414322 is the timestamp of the index to use.
API requires that a default index be set even though the query might
specify to use a different one. The query string we pass to the
API can be anything you can type into Yioop! search box.
*/
$num_results = 10;
// how many results to get back
$first_result_to_return = 0;
// what ranked results show be the first to be returned (0 = highest ranked)
$data = $controller->queryRequest($query, $num_results, $first_result_to_return);
outputQueryData($data);
/*
next we do a related search (as our index only has one page in it)
the only related page is the page itself
*/
echo "\n\n\nAn example of making a related query request with the search API\n";
$url = "http://www.ucanbuyart.com/";
$num_results = 10;
// how many results to get back
$first_result_to_return = 0;
$index_timestamp = "1317414322";
$data = $controller->relatedRequest($url, $num_results, $first_result_to_return, $index_timestamp);
outputQueryData($data);
/*
Finally, we give an example of requesting the cached version of
