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 * Licensed to the Apache Software Foundation (ASF) under one
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
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 * 
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#ifndef	UDKSERVICE_XML_CDFF_HXX
#define	UDKSERVICE_XML_CDFF_HXX


#include <tools/string.hxx>
#include "xml_cd.hxx"

class ComponentDescriptionImpl;


/**	@descr
	Is able to parse an XML file with Component descriptions. Gives access
	to the parsed data.

	Use:
		CompDescrsFromAnXmlFile aCds;
		UniString aFilepath(...);
		if (! aCds.Parse(aFilepath) )
		{
			// react on:
			aCds.Status();
		}

		With operator[] you get access to ComponentDescriptions
		on indices 0 to NrOfDescriptions()-1 .

		For further handling see class ComponentDescription
		in xml_cd.hxx .

		It is possible to parse more than one time. Then the old data
		are discarded. 
**/
class CompDescrsFromAnXmlFile
{
  public:
	enum E_Status
	{
		ok = 0,
		not_yet_parsed,
		cant_read_file,
		inconsistent_file,
		no_tag_found_in_file
	};

	// 	LIFECYCLE
						CompDescrsFromAnXmlFile();
						~CompDescrsFromAnXmlFile();

	//	OPERATIONS
	BOOL				Parse(
							const UniString &	i_sXmlFilePath );

	//	INQUIRY
	INT32				NrOfDescriptions() const;
	const ComponentDescription &
						operator[](				/// @return an empty description, if index does not exist.
							INT32				i_nIndex ) const;
	CompDescrsFromAnXmlFile::E_Status
						Status() const;

  private:
	// PRIVATE SERVICES
	void				Empty();

	// DATA
	std::vector< ComponentDescriptionImpl* >	*
						dpDescriptions;
	E_Status			eStatus;
};


#endif