/**
* To instanciate correct writer from content type.
*
* @param string $contentType Writer Type
* (Atom, json etc..) which implements IOdataWriter interface.
* @param array $writerParams Parameters to writer
*
* @return Returns an instance of writer specialized for
*/
public static function getWriter($contentType, $writerParams)
{
if (!array_key_exists(WRITERS, $contentType)) {
if ($contetType == 'atom') {
self::$WRITERS[$contetType] = new AtomODataWriter($writerParams);
} else {
if ($contetType == 'json') {
self::$WRITERS[$contetType] = new JSONODataWriter($writerParams);
} else {
ODataException::CreateInternalServerError('unsupported type');
}
}
return $self::$writers[$contentType];
}
}
/**
* Read and validates the configuration for the given service.
*
* @param string $serviceName requested service name
* @param string &$serviceInfo service info
* @param string $configFile config filename for all the services
*
* @return void
*
* @throws ODataException If configuration file
* does not exists or malformed.
*/
public static function validateAndGetsServiceInfo($serviceName, &$serviceInfo, $configFile = '../../../services/service.config.xml')
{
$xml = simplexml_load_file(dirname(__FILE__) . "/" . $configFile, null, LIBXML_NOCDATA);
if (!$xml) {
ODataException::createInternalServerError('service.config file is not in proper XML format');
}
if (count($xml->children()) != 1) {
ODataException::createInternalServerError("Config file has more than one root entries");
}
$pathResult = $xml->xpath("/configuration/services/service[@name=\"{$serviceName}\"]");
if (empty($pathResult)) {
ODataException::createBadRequestError("No configuration info found for {$serviceName}");
}
$pathResult = $xml->xpath("/configuration/services/service[@name=\"{$serviceName}\"]/path");
if (empty($pathResult)) {
ODataException::createInternalServerError("One of the mendatory configuration info were missing in the config file");
} else {
$serviceInfo['SERVICE_PATH'] = strval($pathResult[0]);
if (empty($serviceInfo['SERVICE_PATH'])) {
ODataException::createInternalServerError("One of the mendatory configuration info were missing in the config file or config file is mail formed");
}
}
unset($pathResult);
$pathResult = $xml->xpath("/configuration/services/service[@name=\"{$serviceName}\"]/classname");
if (empty($pathResult)) {
ODataException::createInternalServerError("One of the mendatory configuration info were missing in the config file");
} else {
$serviceInfo['SERVICE_CLASS'] = strval($pathResult[0]);
if (empty($serviceInfo['SERVICE_CLASS'])) {
ODataException::createInternalServerError("One of the mendatory configuration info were missing in the config file or config file is mail formed");
}
}
unset($pathResult);
$pathResult = $xml->xpath("/configuration/services/service[@name=\"{$serviceName}\"]/baseURL");
if (empty($pathResult)) {
ODataException::createInternalServerError("One of the mendatory configuration info were missing in the config file");
} else {
$serviceInfo['SERVICE_BASEURL'] = strval($pathResult[0]);
if (empty($serviceInfo['SERVICE_BASEURL'])) {
ODataException::createInternalServerError("One of the mendatory configuration info were missing in the config file or config file is mail formed");
}
}
}
/**
* Build value of $skiptoken from the given object which will be the
* last object in the page.
*
* @param mixed $lastObject entity instance from which skiptoken needs
* to be built.
*
* @return string
*
* @throws ODataException If reflection exception occurs while accessing
* property.
*/
public function buildSkipTokenValue($lastObject)
{
$nextPageLink = null;
foreach ($this->getOrderByPathSegments() as $orderByPathSegment) {
$index = 0;
$currentObject = $lastObject;
$subPathSegments = $orderByPathSegment->getSubPathSegments();
$subPathCount = count($subPathSegments);
foreach ($subPathSegments as &$subPathSegment) {
$isLastSegment = $index == $subPathCount - 1;
try {
$dummyProperty = new \ReflectionProperty($currentObject, $subPathSegment->getName());
$currentObject = $dummyProperty->getValue($currentObject);
if (is_null($currentObject)) {
$nextPageLink .= 'null, ';
break;
} else {
if ($isLastSegment) {
$type = $subPathSegment->getInstanceType();
// assert($type implements IType)
// If this is a string then do utf8_encode to convert
// utf8 decoded characters to
// corrospoding utf8 char (e.g. � to í), then do a
// urlencode to convert í to %C3%AD
// urlencode is needed for datetime and guid too
// if ($type instanceof String || $type instanceof DateTime
// || $type instanceof Guid) {
// if ($type instanceof String) {
// $currentObject = utf8_encode($currentObject);
// }
// $currentObject = urlencode($currentObject);
//}
// call IType::convertToOData to attach reuqired suffix
// and prepfix.
// e.g. $valueM, $valueF, datetime'$value', guid'$value',
// '$value' etc..
// Also we can think about moving above urlencode to this
// function
$value = $type->convertToOData($currentObject);
$nextPageLink .= $value . ', ';
}
}
} catch (\ReflectionException $reflectionException) {
throw ODataException::createInternalServerError(Messages::internalSkipTokenInfoFailedToAccessOrInitializeProperty($subPathSegment->getName()));
}
$index++;
}
}
return rtrim($nextPageLink, ", ");
}
public static function GetServiceInfo($propertyName, $serviceName = "Default")
{
if (empty(self::$_serviceInfo[$propertyName])) {
self::OpenConfigFile();
self::CheckServiceName($serviceName);
$searchStr = "/configuration/services/service[@name=\"" . self::$_serviceName . "\"]/{$propertyName}";
$pathResult = self::$configXML->xpath($searchStr);
if (empty($pathResult)) {
ODataException::createInternalServerError("{$propertyName} configuration info were missing in the config file");
} else {
self::$_serviceInfo[$propertyName] = strval($pathResult[0]);
if (empty(self::$_serviceInfo[$propertyName])) {
ODataException::createInternalServerError("{$propertyName} configuration info were missing in the config file or config file is mail formed");
}
}
unset($pathResult);
}
return self::$_serviceInfo[$propertyName];
}
