/**
* Do the actual search and return results
*
* @param Query $search search object
* @param int $start [optional] starting record number
* @param int $max [optional] max records
* @param string $sort [optional] sort order
* @param bool $facets [optional] whether to include facets
*
* @return Results
*/
protected function doSearch(Search\Query $search, $start = 1, $max = 10, $sort = "", $facets = true)
{
$results = new Search\ResultSet($this->config);
$query = $search->toQuery();
$this->url = $this->server . "/search?q=" . urlencode($query);
if ($this->config->getConfig('client')) {
$this->url .= '&client=' . urlencode($this->config->getConfig('client'));
}
if ($this->config->getConfig('site')) {
$this->url .= '&site=' . urlencode($this->config->getConfig('site'));
}
$this->url .= '&output=xml';
// google results are 0-based
if ($start != null) {
$start = $start - 1;
$this->url .= '&start=' . $start;
}
// echo $this->url; exit;
$client = Factory::getHttpClient();
$google_results = $client->getUrl($this->url, 3);
$xml = simplexml_load_string($google_results);
// header("Content-type: text/xml"); echo $xml->saveXML(); exit;
$x = 0;
// exact matches
foreach ($xml->GM as $gm) {
$record = new Record();
$record->loadXML($gm);
$results->addRecord($record);
}
// regular results
$results_array = $xml->xpath("//RES");
if (count($results_array) > 0 && $results_array !== false) {
$results_xml = $results_array[0];
$results->total = (int) $results_xml->M;
foreach ($results_xml->R as $result_xml) {
if ($x >= $max) {
break;
}
$record = new Record();
$record->loadXML($result_xml);
$results->addRecord($record);
$x++;
}
}
return $results;
}
/**
* Parse the solr response
*
* @param string $response
* @return ResultSet
*/
public function parseResponse($response)
{
// header('Content-type: text/xml'); echo $response; echo '<!--' . $this->url . '-->'; exit;
$xml = simplexml_load_string($response);
if ($response == null || $xml === false) {
throw new \Exception("Could not connect to search engine.");
}
// parse the results
$results = new Search\ResultSet($this->config);
// extract total
$results->total = (int) $xml->result["numFound"];
// extract records
foreach ($this->extractRecords($xml) as $record) {
$results->addRecord($record);
}
// extract facets
$facets = $this->extractFacets($xml);
// associate facets excluded in the query with the
// multi-select facets returned in the response
foreach ($facets->getGroups() as $group) {
foreach ($this->query->getLimits() as $matching_limit) {
if ($matching_limit->boolean == 'NOT' && $matching_limit->field == $group->name) {
$facet_values = $matching_limit->value;
if (!is_array($facet_values)) {
$facet_values = array($facet_values);
}
foreach ($group->getFacets() as $facet) {
foreach ($facet_values as $facet_value) {
if ($facet->name == $facet_value) {
$facet->is_excluded = true;
}
}
}
}
}
}
$results->setFacets($facets);
return $results;
}
protected function parseResponse(\DOMDocument $xml)
{
// create results
$results = new Search\ResultSet($this->config);
// extract total
$results->total = $this->worldcat_client->getTotal();
// extract records
foreach ($this->extractRecords($xml) as $record) {
$results->addRecord($record);
}
return $results;
}
/**
* Do the actual search
*
* @param mixed $search search object or string
* @param string $database [optional] database id
* @param int $start [optional] starting record number
* @param int $max [optional] max records
* @param string $sort [optional] sort order
*
* @return Results
*/
protected function doSearch($search, $database, $start, $max, $sort = "relevance")
{
// default for sort
if ($sort == "") {
$sort = "relevance";
}
// prepare the query
$query = "";
if ($search instanceof Search\Query) {
$query = $search->toQuery();
} else {
$query = $search;
}
// databases
$databases = array();
// we asked for this database specifically
if ($database != "") {
$databases = array($database);
} else {
// see if any supplied as facet limit
foreach ($search->getLimits(true) as $limit) {
array_push($databases, $limit->value);
}
// nope
if (count($databases) == 0) {
// get 'em from config
$databases_xml = $this->config->getConfig("EBSCO_DATABASES");
if ($databases_xml == "") {
throw new \Exception("No databases defined");
}
foreach ($databases_xml->database as $database) {
array_push($databases, (string) $database["id"]);
}
}
}
// construct url
$this->url = "http://eit.ebscohost.com/Services/SearchService.asmx/Search?" . "prof=" . $this->username . "&pwd=" . $this->password . "&authType=&ipprof=" . "&query=" . urlencode($query) . "&startrec={$start}&numrec={$max}" . "&sort={$sort}" . "&format=detailed";
// add in the databases
foreach ($databases as $database) {
$this->url .= "&db={$database}";
}
// get the xml from ebsco
$client = Factory::getHttpClient();
$client->setUri($this->url);
$response = $client->send()->getBody();
// testing
// echo "<pre>$this->url<hr>$response</pre>"; exit;
if ($response == null) {
throw new \Exception("Could not connect to Ebsco search server");
}
// load it in
$xml = new \DOMDocument();
$xml->recover = true;
$xml->loadXML($response);
// result set
$results = new Search\ResultSet($this->config);
// get total
$total = 0;
$hits = $xml->getElementsByTagName("Hits")->item(0);
if ($hits != null) {
$total = (int) $hits->nodeValue;
}
### hacks until ebsco gives us proper hit counts, they are almost there
$check = 0;
foreach ($xml->getElementsByTagName("rec") as $hits) {
$check++;
}
// no hits, but we're above the first page, so the user has likely
// skipped here, need to increment down until we find the true ceiling
if ($check == 0 && $start > $max) {
// but let's not get crazy here
if ($this->deincrementing <= 8) {
$this->deincrementing++;
$new_start = $start - $max;
return $this->doSearch($query, $databases, $new_start, $max, $sort);
}
}
// we've reached the end prematurely, so set this to the end
$check_end = $start + $check;
if ($check < $max) {
if ($check_end < $total) {
$total = $check_end;
}
}
## end hacks
// set total
$results->total = $total;
// add records
foreach ($this->extractRecords($xml) as $record) {
$results->addRecord($record);
}
// add clusters
$facets = $this->extractFacets($xml);
$results->setFacets($facets);
return $results;
}
/**
* Parse the primo response
*
* @param DOMDocument $xml primo results
* @return ResultSet
*/
protected function parseResponse(\DOMDocument $xml)
{
// check for errors
$error = $xml->getElementsByTagName("ERROR")->item(0);
if ($error != "") {
throw new \Exception($error->getAttribute("MESSAGE"));
}
// set-up the result set
$result_set = new Search\ResultSet($this->config);
// total
$docset = $xml->getElementsByTagName("DOCSET")->item(0);
if ($docset == null) {
throw new \Exception("Could not determine total number of records");
}
$total = $docset->getAttribute("TOTALHITS");
$result_set->total = $total;
// extract records
foreach ($this->extractRecords($xml) as $xerxes_record) {
$result_set->addRecord($xerxes_record);
}
// facets
$facets = $this->extractFacets($xml);
$result_set->setFacets($facets);
return $result_set;
}
/**
* Parse the EDS response
*
* @param string $response
* @return ResultSet
*/
public function parseResponse($response)
{
$json = new Json($response);
// results
$result_set = new ResultSet($this->config);
// total
$total = $json->extractValue('SearchResult/Statistics/TotalHits');
$result_set->total = $total;
// extract records
foreach ($this->extractRecords($json) as $xerxes_record) {
$result_set->addRecord($xerxes_record);
}
// extract facets
$facets = $this->extractFacets($json);
$result_set->setFacets($facets);
return $result_set;
}
/**
* Do the actual search
*
* @param string|Query $search search object or string
* @param int $start [optional] starting record number
* @param int $max [optional] max records
* @param string $sort [optional] sort order
* @param bool $include_facets [optional] whether to include facets or not
*
* @return string
*/
protected function doSearch($search, $start, $max = 10, $sort = null, $include_facets = true)
{
// start
if ($start > 0) {
$start--;
// solr is 0-based
}
### parse the query
$query = "";
// passed in a query object, so handle this
if ($search instanceof Search\Query) {
$query = $search->toQuery();
} else {
$query = "&q=" . urlencode($search);
}
### now the url
$this->url = $this->server . $query;
$this->url .= "&start={$start}&rows=" . $max . "&sort=" . urlencode($sort);
if ($include_facets == true) {
$this->url .= "&facet=true&facet.mincount=1";
foreach ($this->config->getFacets() as $facet => $attributes) {
$sort = (string) $attributes["sort"];
$max = (string) $attributes["max"];
$this->url .= "&facet.field={$facet}";
if ($sort != "") {
$this->url .= "&f.{$facet}.facet.sort={$sort}";
}
if ($max != "") {
$this->url .= "&f.{$facet}.facet.limit={$max}";
}
}
}
// make sure we get the score
$this->url .= "&fl=*+score";
## get and parse the response
// get the data
$client = Factory::getHttpClient();
$client->setUri($this->url);
$response = $client->send()->getBody();
$xml = simplexml_load_string($response);
if ($response == null || $xml === false) {
throw new \Exception("Could not connect to search engine.");
}
// parse the results
$results = new Search\ResultSet($this->config);
// extract total
$results->total = (int) $xml->result["numFound"];
// extract records
foreach ($this->extractRecords($xml) as $record) {
$results->addRecord($record);
}
// extract facets
$results->setFacets($this->extractFacets($xml));
return $results;
}
/**
* Parse the ebsco response
*
* @param string $response
* @return ResultSet
*/
public function parseResponse($response)
{
// load it in
$xml = Parser::convertToDOMDocument($response);
// catch a non-xml response
if ($xml->documentElement == null) {
throw new \Exception("Could not connect to Ebsco search server");
}
// check for fatal error
if ($xml->documentElement->nodeName == 'Fault') {
$message = $xml->getElementsByTagName('Message')->item(0);
if ($message != null) {
if ($message->nodeValue == "The following parameter(s) have incorrect values: Field query: Greater than 0") {
throw new \Exception('Ebsco search error: your search query cannot be empty');
}
// need to get a fresh set of databases
if (strstr($message->nodeValue, 'User does not have access rights to database')) {
throw new DatabaseException($message->nodeValue);
}
throw new \Exception('Ebsco server error: ' . $message->nodeValue);
}
}
// result set
$results = new Search\ResultSet($this->config);
// get total
$total = 0;
$hits = $xml->getElementsByTagName("Hits")->item(0);
if ($hits != null) {
$total = (int) $hits->nodeValue;
}
### hacks until ebsco gives us proper hit counts, they are almost there
$check = 0;
foreach ($xml->getElementsByTagName("rec") as $hits) {
$check++;
}
// no hits, but we're above the first page, so the user has likely
// skipped here, need to increment down until we find the true ceiling
if ($check == 0 && $this->query->start > $this->query->max) {
// but let's not get crazy here
if ($this->deincrementing <= 8) {
$this->deincrementing++;
$new_start = $this->query->start - $this->query->max;
$this->query->start = $new_start;
return $this->doSearch($this->query);
}
}
// we've reached the end prematurely, so set this to the end
$check_end = $this->query->start + $check;
if ($check < $this->query->max) {
if ($check_end < $total) {
$total = $check_end;
}
}
## end hacks
// set total
$results->total = $total;
// add records
foreach ($this->extractRecords($xml) as $record) {
$results->addRecord($record);
}
// add clusters
$facets = $this->extractFacets($xml);
$results->setFacets($facets);
/*
$facets_id = 'facets' . $query->getHash();
// cached clusters
$cached_facets = $this->cache->get($facets_id);
if ( $cached_facets instanceof Facets )
{
$results->setFacets($cached_facets);
}
else
{
$facets = $this->extractFacets($xml);
$this->cache->set($facets_id, $facets);
$results->setFacets($facets);
}
*/
return $results;
}
/**
* Parse the primo response
*
* @param string $response
* @return ResultSet
*/
public function parseResponse($response)
{
// load it
$xml = Parser::convertToDOMDocument($response);
// header("Content-type:text/xml"); echo $xml->saveXML(); exit;
// check for errors
$error = $xml->getElementsByTagName("ERROR")->item(0);
if ($error != "") {
throw new \Exception($error->getAttribute("MESSAGE"));
}
// set-up the result set
$result_set = new Search\ResultSet($this->config);
// total
$docset = $xml->getElementsByTagName("DOCSET")->item(0);
if ($docset == null) {
throw new \Exception("Could not determine total number of records");
}
$total = $docset->getAttribute("TOTALHITS");
$result_set->total = $total;
// extract records
foreach ($this->extractRecords($xml) as $xerxes_record) {
$result_set->addRecord($xerxes_record);
}
// facets
$facets = $this->extractFacets($xml);
$result_set->setFacets($facets);
return $result_set;
}
