/**
* Submit an advanced search query. Responds with JSON results.
*
* @param query The Lucene query to perform
* @param solrOffset The offset into the actual solr results
* @param displayOffset The offset of actually displayed items
* @param limit The limit of the result set
*/
public function submitAction()
{
$this->disableLayout();
$this->disableView();
$query = $this->getParam('query');
// Extract <element>.<qualifier> from between '-' and ':' in '<type>-<element>.<qualifier>: <value>'
$query = preg_replace_callback('/(?<=-)[\\w. ]*(?=:)/', array(&$this, 'strReplaceSpaces'), $query);
$limit = (int) $this->getParam('limit');
$solrOffset = (int) $this->getParam('solrOffset');
$displayOffset = (int) $this->getParam('displayOffset');
$itemIds = array();
try {
$index = $this->ModuleComponent->Solr->getSolrIndex();
UtilityComponent::beginIgnoreWarnings();
// underlying library can generate warnings, we need to eat them
$response = $index->search($query, $solrOffset, $limit * 5, array('fl' => '*,score'));
// extend limit to allow some room for policy filtering
UtilityComponent::endIgnoreWarnings();
$totalResults = $response->response->numFound;
foreach ($response->response->docs as $doc) {
$itemIds[] = $doc->key;
}
} catch (Exception $e) {
echo JsonComponent::encode(array('status' => 'error', 'message' => 'Syntax error in query ' . $e->getMessage()));
return;
}
$items = array();
$count = 0;
foreach ($itemIds as $itemId) {
++$solrOffset;
$item = $this->Item->load($itemId);
if ($item && $this->Item->policyCheck($item, $this->userSession->Dao)) {
$items[] = array('name' => $item->getName(), 'id' => $item->getKey());
++$count;
if ($count >= $limit) {
break;
}
}
}
$displayOffset += $count;
echo JsonComponent::encode(array('status' => 'ok', 'totalResults' => $totalResults, 'solrOffset' => $solrOffset, 'displayOffset' => $displayOffset, 'items' => $items));
}
/**
* Search using Lucene search text queries.
*
* @path /solr/search
* @http GET
* @param query The Lucene search query
* @param limit (Optional) The limit of the search; defaults to 25
* @return The list of items matching the search query
*
* @param array $args parameters
* @return array
* @throws Exception
*/
public function searchAdvanced($args)
{
$apihelperComponent = MidasLoader::loadComponent('Apihelper');
$apihelperComponent->validateParams($args, array('query'));
$solrComponent = MidasLoader::loadComponent('Solr', 'solr');
$authComponent = MidasLoader::loadComponent('Authentication');
$userDao = $authComponent->getUser($args, Zend_Registry::get('userSession')->Dao);
$limit = array_key_exists('limit', $args) ? (int) $args['limit'] : 25;
$itemIds = array();
try {
$index = $solrComponent->getSolrIndex();
UtilityComponent::beginIgnoreWarnings();
// underlying library can generate warnings, we need to eat them
$response = $index->search($args['query'], 0, $limit * 5, array('fl' => '*,score'));
// extend limit to allow some room for policy filtering
UtilityComponent::endIgnoreWarnings();
foreach ($response->response->docs as $doc) {
$itemIds[] = $doc->key;
}
} catch (Exception $e) {
throw new Exception('Syntax error in query', -1);
}
/** @var ItemModel $itemModel */
$itemModel = MidasLoader::loadModel('Item');
$items = array();
$count = 0;
foreach ($itemIds as $itemId) {
$item = $itemModel->load($itemId);
if ($item && $itemModel->policyCheck($item, $userDao)) {
$itemArray = $item->toArray();
$itemInfo = array();
$itemInfo['id'] = $itemArray['item_id'];
$itemInfo['name'] = $itemArray['name'];
$itemInfo['description'] = $itemArray['description'];
$itemInfo['size'] = $itemArray['sizebytes'];
$itemInfo['date_created'] = $itemArray['date_creation'];
$itemInfo['date_updated'] = $itemArray['date_update'];
$itemInfo['uuid'] = $itemArray['uuid'];
$itemInfo['views'] = $itemArray['view'];
$itemInfo['downloads'] = $itemArray['download'];
$itemInfo['public'] = $itemArray['privacy_status'] == 0;
$owningFolders = $item->getFolders();
if (count($owningFolders) > 0) {
$itemInfo['folder_id'] = $owningFolders[0]->getKey();
}
$revisionsArray = array();
$revisions = $item->getRevisions();
foreach ($revisions as $revision) {
if (!$revision) {
continue;
}
$tmp = $revision->toArray();
$revisionsArray[] = $tmp['itemrevision_id'];
}
$itemInfo['revisions'] = $revisionsArray;
// get bitstreams only from last revision
$bitstreamArray = array();
$headRevision = $itemModel->getLastRevision($item);
if ($headRevision !== false) {
$bitstreams = $headRevision->getBitstreams();
foreach ($bitstreams as $b) {
$btmp = $b->toArray();
$bitstreamArray[] = $btmp['bitstream_id'];
}
}
$itemInfo['bitstreams'] = $bitstreamArray;
$items[] = $itemInfo;
++$count;
if ($count >= $limit) {
break;
}
}
}
return $items;
}
/** Add a dashboard entry on the admin dashboard for showing solr status */
public function getAdminDashboard()
{
try {
UtilityComponent::beginIgnoreWarnings();
$index = $this->ModuleComponent->Solr->getSolrIndex();
$index->search('metadata: foo', 0, 1);
// run a simple test query
UtilityComponent::endIgnoreWarnings();
return array('Solr server accepting queries' => array(true));
} catch (Exception $e) {
UtilityComponent::endIgnoreWarnings();
return array('Solr server accepting queries' => array(false));
}
}
