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/*
 * Copyright (c) 2010 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#pragma once

#include <boost/shared_ptr.hpp>


#include <Swiften/Base/API.h>
#include <Swiften/Parser/AttributeMap.h>
#include <Swiften/Elements/Payload.h>

namespace Swift {
	

	/**
	 * A parser for XMPP stanza payloads.
	 *
	 * The parser is event driven: handleStartElement, handleEndElement, and handleCharacterData will be called
	 * when the parser detects start and end of XML elements, or character data.
	 * After the data for the given top-level element is processed, getPayload() will be called to retrieve the
	 * payload.
	 */
	class SWIFTEN_API PayloadParser {
		public:
			virtual ~PayloadParser();

			/**
			 * Handle the start of an XML element.
			 */
			virtual void handleStartElement(const std::string& element, const std::string& ns, const AttributeMap& attributes) = 0;

			/**
			 * Handle the end of an XML element.
			 */
			virtual void handleEndElement(const std::string& element, const std::string& ns) = 0;

			/**
			 * Handle character data.
			 */
			virtual void handleCharacterData(const std::string& data) = 0;

			/**
			 * Retrieve a pointer to the payload.
			 */
			virtual boost::shared_ptr<Payload> getPayload() const = 0;
	};
}