The new 2.0 setup is under way...

SVN:trunk[2179]
2026-05-02 23:18:43 +02:00 · 2012-09-12 13:31:46 +00:00
parent 4cfeae9ca0
commit 5eb97ae133
8 changed files with 2015 additions and 5 deletions
--- a/setup/parameters.class.inc.php
+++ b/setup/parameters.class.inc.php
@@ -0,0 +1,138 @@
+<?php
+class InvalidParameterException extends Exception
+{
+}
+
+abstract class Parameters
+{
+	protected $aData = null;
+	protected $sParametersFile = null;
+	
+	public function __construct($sParametersFile)
+	{
+		$this->aData = null;
+		$this->sParametersFile = $sParametersFile;
+		$this->Load($sParametersFile);
+	}
+
+	abstract public function Load($sParametersFile);
+
+	public function Get($sCode, $default = '')
+	{
+		if (array_key_exists($sCode, $this->aData))
+		{
+			return $this->aData[$sCode];
+		}
+		return $default;
+	}
+}
+
+class PHPParameters extends Parameters
+{
+	public function Load($sParametersFile)
+	{
+		if ($this->aData == null)
+		{
+			require_once($sParametersFile);
+			$this->aData = $ITOP_PARAMS;
+		}
+	}
+}
+
+class XMLParameters extends Parameters
+{
+	protected $aData = null;
+
+	public function Load($sParametersFile)
+	{
+		if ($this->aData == null)
+		{
+			libxml_use_internal_errors(true);
+			$oXML = @simplexml_load_file($sParametersFile);
+			if (!$oXML)
+			{
+				$aMessage = array();
+				foreach(libxml_get_errors() as $oError)
+				{
+					$aMessage[] = "(line: {$oError->line}) ".$oError->message; // Beware: $oError->columns sometimes returns wrong (misleading) value
+				}
+				libxml_clear_errors();
+				throw new InvalidParameterException("Invalid Parameters file '{$this->sParametersFile}': ".implode(' ', $aMessage));
+			}
+			
+			$this->aData = array();
+			foreach($oXML as $key => $oElement)
+			{
+				$this->aData[(string)$key] = $this->ReadElement($oElement);
+			}
+		}
+	}
+	
+	protected function ReadElement(SimpleXMLElement $oElement)
+	{
+		$sDefaultNodeType = (count($oElement->children()) > 0) ? 'hash' : 'string';
+		$sNodeType = $this->GetAttribute('type', $oElement, $sDefaultNodeType);
+		switch($sNodeType)
+		{
+			case 'array':
+			$value = array();
+			// Treat the current element as zero based array, child tag names are NOT meaningful
+			$sFirstTagName = null;
+			foreach($oElement->children() as $oChildElement)
+			{
+				if ($sFirstTagName == null)
+				{
+					$sFirstTagName = $oChildElement->getName();
+				}
+				else if ($sFirstTagName != $oChildElement->getName())
+				{
+					throw new InvalidParameterException("Invalid Parameters file '{$this->sParametersFile}': mixed tags ('$sFirstTagName' and '".$oChildElement->getName()."') inside array '".$oElement->getName()."'");
+				}
+				$val = $this->ReadElement($oChildElement);
+				$value[] = $val;
+			}
+			break;
+			
+			case 'hash':
+			$value = array();
+			// Treat the current element as a hash, child tag names are keys
+			foreach($oElement->children() as $oChildElement)
+			{
+				if (array_key_exists($oChildElement->getName(), $value))
+				{
+					throw new InvalidParameterException("Invalid Parameters file '{$this->sParametersFile}': duplicate tags '".$oChildElement->getName()."' inside hash '".$oElement->getName()."'");
+				}
+				$val = $this->ReadElement($oChildElement);
+				$value[$oChildElement->getName()] = $val;
+			}
+			break;
+			
+			case 'int':
+			case 'integer':
+			$value = (int)$oElement;
+			break;
+			
+			case 'string':
+			default:
+			$value = (string)$oElement;
+		}
+		return $value;
+	}
+	
+	protected function GetAttribute($sAttName, $oElement, $sDefaultValue)
+	{
+		$sRet = $sDefaultValue;
+
+		foreach($oElement->attributes() as $sKey => $oChildElement)
+		{
+			if ((string)$sKey == $sAttName)
+			{
+				$sRet = (string)$oChildElement;
+				break;
+			}
+		}
+		return $sRet;
+	}
+}
+
+