/**
* Loads the section $section from the config file encoded as JSON
*
* Sections are defined as properties of the main object
*
* In order to extend another section, a section defines the "_extends"
* property having a value of the section name from which the extending
* section inherits values.
*
* Note that the keys in $section will override any keys of the same
* name in the sections that have been included via "_extends".
*
* @param string $json JSON file or string to process
* @param mixed $section Section to process
* @param boolean $options Whether modifiacations are allowed at runtime
* @throws IfwPsn_Vendor_Zend_Config_Exception When JSON text is not set or cannot be loaded
* @throws IfwPsn_Vendor_Zend_Config_Exception When section $sectionName cannot be found in $json
*/
public function __construct($json, $section = null, $options = false)
{
if (empty($json)) {
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Config/Exception.php';
throw new IfwPsn_Vendor_Zend_Config_Exception('Filename is not set');
}
$allowModifications = false;
if (is_bool($options)) {
$allowModifications = $options;
} elseif (is_array($options)) {
foreach ($options as $key => $value) {
switch (strtolower($key)) {
case 'allow_modifications':
case 'allowmodifications':
$allowModifications = (bool) $value;
break;
case 'skip_extends':
case 'skipextends':
$this->_skipExtends = (bool) $value;
break;
case 'ignore_constants':
case 'ignoreconstants':
$this->_ignoreConstants = (bool) $value;
break;
default:
break;
}
}
}
set_error_handler(array($this, '_loadFileErrorHandler'));
// Warnings and errors are suppressed
if ($json[0] != '{') {
$json = file_get_contents($json);
}
restore_error_handler();
// Check if there was a error while loading file
if ($this->_loadFileErrorStr !== null) {
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Config/Exception.php';
throw new IfwPsn_Vendor_Zend_Config_Exception($this->_loadFileErrorStr);
}
// Replace constants
if (!$this->_ignoreConstants) {
$json = $this->_replaceConstants($json);
}
// Parse/decode
try {
$config = IfwPsn_Vendor_Zend_Json::decode($json);
} catch (IfwPsn_Vendor_Zend_Json_Exception $e) {
// decode failed
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Config/Exception.php';
throw new IfwPsn_Vendor_Zend_Config_Exception("Error parsing JSON data");
}
if ($section === null) {
$dataArray = array();
foreach ($config as $sectionName => $sectionData) {
$dataArray[$sectionName] = $this->_processExtends($config, $sectionName);
}
parent::__construct($dataArray, $allowModifications);
} elseif (is_array($section)) {
$dataArray = array();
foreach ($section as $sectionName) {
if (!isset($config[$sectionName])) {
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Config/Exception.php';
throw new IfwPsn_Vendor_Zend_Config_Exception(sprintf('Section "%s" cannot be found', $sectionName));
}
$dataArray = array_merge($this->_processExtends($config, $sectionName), $dataArray);
}
parent::__construct($dataArray, $allowModifications);
} else {
if (!isset($config[$section])) {
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Config/Exception.php';
throw new IfwPsn_Vendor_Zend_Config_Exception(sprintf('Section "%s" cannot be found', $section));
}
$dataArray = $this->_processExtends($config, $section);
if (!is_array($dataArray)) {
// Section in the JSON data contains just one top level string
$dataArray = array($section => $dataArray);
}
parent::__construct($dataArray, $allowModifications);
}
$this->_loadedSection = $section;
}
