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/**
* Class used as interface to have access to the search index services
*/
class BpmnEngineServicesSearchIndex
{
private $_solrIsEnabled = false;
private $_solrHost = "";
public function __construct($solrIsEnabled = false, $solrHost = "")
{
$this->_solrIsEnabled = $solrIsEnabled;
$this->_solrHost = $solrHost;
}
/**
* Verify if the Solr service is available
*
* @gearman = false
* @rest = false
* @background = false no input parameters @param[in]
* @param [out] bool true if index service is enabled false in other case
*/
public function isEnabled($workspace)
{
$solr = new BpmnEngineSearchIndexAccessSolr($this->_solrIsEnabled, $this->_solrHost);
return $solr->isEnabled($workspace);
}
/**
* Get the list of facets in base to the specified query and filter
*
* @gearman = true
* @rest = false
* @background = false
* @param [in] Entity_FacetRequest facetRequestEntity Facet request entity
* @param [out] array FacetGroup
*/
public function getFacetsList($facetRequestEntity)
{
// get array of selected facet groups
$facetRequestEntity->selectedFacetsString = str_replace(',,', ',', $facetRequestEntity->selectedFacetsString);
// remove descriptions of selected facet groups
$aGroups = explode(',', $facetRequestEntity->selectedFacetsString);
$aGroups = array_filter($aGroups); // remove empty items
$aSelectedFacetGroups = array();
foreach ($aGroups as $i => $value) {
$gi = explode(':::', $value);
$gr = explode('::', $gi [0]);
$it = explode('::', $gi [1]);
// create string for remove condition
$count = 0;
$removeCondition = str_replace($value . ',', '', $facetRequestEntity->selectedFacetsString, $count);
if ($count == 0) {
$removeCondition = str_replace($value, '', $facetRequestEntity->selectedFacetsString, $count);
}
$selectedFacetGroupData = array(
'selectedFacetGroupName' => $gr [0],
'selectedFacetGroupPrintName' => $gr [1],
'selectedFacetItemName' => $it [0],
'selectedFacetItemPrintName' => $it [1],
'selectedFacetRemoveCondition' => $removeCondition
);
$aSelectedFacetGroups [] = EntitySelectedFacetGroupItem::createForRequest($selectedFacetGroupData);
}
// convert request to index request
// create filters
$filters = array();
if (!empty($aSelectedFacetGroups)) {
// exclude facetFields and facetDates included in filter from the next
// list of facets
foreach ($aSelectedFacetGroups as $value) {
$facetRequestEntity->facetFields = array_diff($facetRequestEntity->facetFields, array(
$value->selectedFacetGroupName
));
$facetRequestEntity->facetDates = array_diff($facetRequestEntity->facetDates, array(
$value->selectedFacetGroupName
));
}
foreach ($aSelectedFacetGroups as $group) {
$filters [] = $group->selectedFacetGroupName . ':' . urlencode($group->selectedFacetItemName);
}
}
$facetRequestEntity->filters = $filters;
$solr = new BpmnEngineSearchIndexAccessSolr($this->_solrIsEnabled, $this->_solrHost);
// create list of facets
$facetsList = $solr->getFacetsList($facetRequestEntity);
$numFound = $facetsList->response->numFound;
$facetCounts = $facetsList->facet_counts;
$facetGroups = array();
// convert facet fields result to objects
// include facet field results
$facetFieldsResult = $facetsList->facet_counts->facet_fields;
if (!empty($facetFieldsResult)) {
foreach ($facetFieldsResult as $facetGroup => $facetvalues) {
if (count($facetvalues) > 0) { // if the group have facets included
$data = array(
'facetGroupName' => $facetGroup
);
$data ['facetGroupPrintName'] = $facetGroup;
$data ['facetGroupType'] = 'field';
$facetItems = array();
for ($i = 0; $i < count($facetvalues); $i += 2) {
$dataItem = array();
$dataItem ['facetName'] = $facetvalues [$i];
$dataItem ['facetPrintName'] = $facetvalues [$i];
$dataItem ['facetCount'] = $facetvalues [$i + 1];
$dataItem ['facetSelectCondition'] = $facetRequestEntity->selectedFacetsString . (empty($facetRequestEntity->selectedFacetsString) ? '' : ',') . $data ['facetGroupName'] . '::' . $data ['facetGroupPrintName'] . ':::' . $dataItem ['facetName'] . '::' . $dataItem ['facetPrintName'];
$newFacetItem = EntityFacetItem::createForInsert($dataItem);
$facetItems [] = $newFacetItem;
}
$data ['facetItems'] = $facetItems;
$newFacetGroup = EntityFacetGroup::createForInsert($data);
$facetGroups [] = $newFacetGroup;
}
}
}
// include facet date ranges results
$facetDatesResult = $facetsList->facet_counts->facet_dates;
if (!empty($facetDatesResult)) {
foreach ($facetDatesResult as $facetGroup => $facetvalues) {
if (count((array) $facetvalues) > 3) { // if the group have any facets included
// besides start, end and gap
$data = array(
'facetGroupName' => $facetGroup
);
$data ['facetGroupPrintName'] = $facetGroup;
$data ['facetGroupType'] = 'daterange';
$facetItems = array();
$facetvalueskeys = array_keys((array) $facetvalues);
foreach ($facetvalueskeys as $i => $k) {
if ($k != 'gap' && $k != 'start' && $k != 'end') {
$dataItem = array();
if ($i < count($facetvalueskeys) - 4) {
$dataItem ['facetName'] = '[' . $k . '%20TO%20' . $facetvalueskeys [$i + 1] . ']';
$dataItem ['facetPrintName'] = '[' . $k . '%20TO%20' . $facetvalueskeys [$i + 1] . ']';
} else {
// the last group
$dataItem ['facetName'] = '[' . $k . '%20TO%20' . $facetvalues->end . ']';
$dataItem ['facetPrintName'] = '[' . $k . '%20TO%20' . $facetvalues->end . ']';
}
$dataItem ['facetCount'] = $facetvalues->$k;
$dataItem ['facetSelectCondition'] = $facetRequestEntity->selectedFacetsString . (empty($facetRequestEntity->selectedFacetsString) ? '' : ',') . $data ['facetGroupName'] . '::' . $data ['facetGroupPrintName'] . ':::' . $dataItem ['facetName'] . '::' . $dataItem ['facetPrintName'];
$newFacetItem = EntityFacetItem::createForInsert($dataItem);
$facetItems [] = $newFacetItem;
}
}
$data ['facetItems'] = $facetItems;
$newFacetGroup = EntityFacetGroup::createForInsert($data);
$facetGroups [] = $newFacetGroup;
}
}
}
// TODO:convert facet queries
// Create a filter string used in the filter of results of a datatable
$filterText = ''; // the list of selected filters used for filtering result,
// send in ajax
foreach ($aSelectedFacetGroups as $selectedFacetGroup) {
$filterText .= $selectedFacetGroup->selectedFacetGroupName . ':' . urlencode($selectedFacetGroup->selectedFacetItemName) . ',';
}
$filterText = substr_replace($filterText, '', - 1);
// Create result
$dataFacetResult = array(
'aFacetGroups' => $facetGroups,
'aSelectedFacetGroups' => $aSelectedFacetGroups,
'sFilterText' => $filterText
);
$facetResult = EntityFacetResult::createForRequest($dataFacetResult);
return $facetResult;
}
/**
* Get the total number of documents in search server
* @param string $workspace
* @return integer number of documents
*
*/
public function getNumberDocuments($workspace)
{
require_once('class.solr.php');
$solr = new BpmnEngineSearchIndexAccessSolr($this->_solrIsEnabled, $this->_solrHost);
// create list of facets
$numberDocuments = $solr->getNumberDocuments($workspace);
return $numberDocuments;
}
/**
* Update document Index
* @param SolrUpdateDocumentEntity $solrUpdateDocumentEntity
*/
public function updateIndexDocument($solrUpdateDocumentEntity)
{
$solr = new BpmnEngineSearchIndexAccessSolr($this->_solrIsEnabled, $this->_solrHost);
// create list of facets
$solr->updateDocument($solrUpdateDocumentEntity);
}
/**
* Delete document from index
* @param string $workspace
* @param string $idQuery
*/
public function deleteDocumentFromIndex($workspace, $idQuery)
{
$solr = new BpmnEngineSearchIndexAccessSolr($this->_solrIsEnabled, $this->_solrHost);
// create list of facets
$solr->deleteDocument($workspace, $idQuery);
}
/**
* Commit index changes
* @param string $workspace
*/
public function commitIndexChanges($workspace)
{
$solr = new BpmnEngineSearchIndexAccessSolr($this->_solrIsEnabled, $this->_solrHost);
// commit
$solr->commitChanges($workspace);
}
/**
* Optimize index changes
* @param string $workspace
*/
public function optimizeIndexChanges($workspace)
{
$solr = new BpmnEngineSearchIndexAccessSolr($this->_solrIsEnabled, $this->_solrHost);
// commit
$solr->optimizeChanges($workspace);
}
/**
* Call Solr server to return the list of paginated pages.
* @param FacetRequest $solrRequestData
* @return EntitySolrQueryResult
*/
public function getDataTablePaginatedList($solrRequestData)
{
// execute query
$solr = new BpmnEngineSearchIndexAccessSolr($this->_solrIsEnabled, $this->_solrHost);
$solrPaginatedResult = $solr->executeQuery($solrRequestData);
// get total number of documents in index
$numTotalDocs = $solr->getNumberDocuments($solrRequestData->workspace);
// create the Datatable response of the query
$numFound = $solrPaginatedResult->response->numFound;
$docs = $solrPaginatedResult->response->docs;
// insert list of names in docs result
$data = array(
"sEcho" => '', // must be completed in response
"iTotalRecords" => intval($numTotalDocs), // we must get the
// total number of documents
"iTotalDisplayRecords" => $numFound,
"aaData" => array()
);
// copy result document or add placeholders to result
foreach ($docs as $i => $doc) {
$data ['aaData'] [$i] = array();
foreach ($solrRequestData->includeCols as $columnName) {
if ($columnName == '') {
$data ['aaData'] [$i] [] = ''; // placeholder
} else {
if (isset($doc->$columnName)) {
$data ['aaData'] [$i] [$columnName] = $doc->$columnName;
} else {
$data ['aaData'] [$i] [$columnName] = '';
}
}
}
}
$solrQueryResponse = EntitySolrQueryResult::createForRequest($data);
return $solrQueryResponse;
}
/**
* Return the list of stored fields in the index.
* @param string $workspace
* @return array of index fields
*/
public function getIndexFields($workspace)
{
$solr = new BpmnEngineSearchIndexAccessSolr($this->_solrIsEnabled, $this->_solrHost);
$solrFieldsData = $solr->getListIndexedStoredFields($workspace);
// copy list of arrays
$listFields = array();
foreach ($solrFieldsData->fields as $key => $fieldData) {
if (array_key_exists('dynamicBase', $fieldData)) {
$originalFieldName = substr($key, 0, - strlen($fieldData->dynamicBase) + 1);
// Maintain case sensitive variable names
$listFields [$originalFieldName] = $key;
} else {
// Maintain case sensitive variable names
$listFields [$key] = $key;
}
}
return $listFields;
}
}
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