/**
* Constructor
*
* @param $searchHandler string The search handler URL. We assume the embedded server
* as a default.
* @param $username string The HTTP BASIC authentication username.
* @param $password string The corresponding password.
* @param $instId string The unique ID of this OJS installation to partition
* a shared index.
*/
function SolrWebService($searchHandler, $username, $password, $instId)
{
parent::XmlWebService();
// Configure the web service.
$this->setAuthUsername($username);
$this->setAuthPassword($password);
// Remove trailing slashes.
assert(is_string($searchHandler) && !empty($searchHandler));
$searchHandler = rtrim($searchHandler, '/');
// Parse the search handler URL.
$searchHandlerParts = explode('/', $searchHandler);
$this->_solrSearchHandler = array_pop($searchHandlerParts);
$this->_solrCore = array_pop($searchHandlerParts);
$this->_solrServer = implode('/', $searchHandlerParts) . '/';
// Set the installation ID.
assert(is_string($instId) && !empty($instId));
$this->_instId = $instId;
}
/**
* Call web service with the given parameters
* @param $params array GET or POST parameters
* @return DOMDocument or null in case of error
*/
function &callWebService($url, &$params, $returnType = XSL_TRANSFORMER_DOCTYPE_DOM, $method = 'GET')
{
// Create a request
$webServiceRequest = new WebServiceRequest($url, $params, $method);
// Configure and call the web service
$xmlWebService = new XmlWebService();
$xmlWebService->setReturnType($returnType);
$result =& $xmlWebService->call($webServiceRequest);
if (is_null($result)) {
// Construct a helpful error message including
// the offending webservice url for get requests.
$webserviceUrl = $url;
if ($method == 'GET') {
$keyValuePairs = array();
foreach ($params as $key => $value) {
$keyValuePairs[] = $key . '=' . $value;
}
$webserviceUrl .= '?' . implode('&', $keyValuePairs);
}
$translationParams = array('filterName' => $this->getDisplayName(), 'webserviceUrl' => $webserviceUrl, 'httpMethod' => $method);
$this->addError(__('submission.citations.filter.webserviceError', $translationParams));
}
return $result;
}
/**
* Call web service with the given parameters
* @param $params array GET or POST parameters
* @return DOMDocument or null in case of error
*/
function &callWebService($url, &$params, $returnType = XSL_TRANSFORMER_DOCTYPE_DOM, $method = 'GET')
{
// Create a request
$webServiceRequest = new WebServiceRequest($url, $params, $method);
// Configure and call the web service
$xmlWebService = new XmlWebService();
$xmlWebService->setReturnType($returnType);
$result =& $xmlWebService->call($webServiceRequest);
return $result;
}
