/*

 * Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies). 

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:

 *

 * TypeMember handler

 *

 */

package com.nokia.trace.dictionary.model.handlers;

import org.xml.sax.Attributes;

import com.nokia.trace.dictionary.TraceDictionaryEngine;

import com.nokia.trace.dictionary.model.DictionaryContentHandler;

import com.nokia.trace.dictionary.model.DictionaryDecodeModel;

import com.nokia.trace.dictionary.model.decodeparameters.CompoundParameter;

import com.nokia.trace.dictionary.model.decodeparameters.DecodeParameter;

import com.nokia.trace.dictionary.model.decodeparameters.EnumMember;

import com.nokia.trace.dictionary.model.decodeparameters.EnumParameter;

import com.nokia.trace.eventrouter.TraceEvent;

/**

 * TypeMember handler

 */

final class TypeMemberHandler extends BaseHandler {

	/**

	 * Tag name this handler handles

	 */

	private static final String TYPEMEMBER_TAG = "typemember"; //$NON-NLS-1$

	/**

	 * Constructor

	 * 

	 * @param model

	 *            the model

	 */

	TypeMemberHandler(DictionaryDecodeModel model) {

		super(model, TYPEMEMBER_TAG);

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see

	 * com.nokia.trace.dictionary.model.handlers.BaseHandler#processStartElement

	 * (org.xml.sax.Attributes,

	 * com.nokia.trace.dictionary.model.DictionaryContentHandler)

	 */

	@Override

	public void processStartElement(Attributes atts,

			DictionaryContentHandler handler) {

		// Check are we doing enum or compound

		if (atts.getValue(VALUE) != null) {

			// Get the previous enum parameter

			EnumParameter prevEnum = handler.getVariables()

					.getPreviousEnumParameter();

			// Create new enum member

			EnumMember enumMember = new EnumMember(atts.getValue(NAME), Integer

					.parseInt(atts.getValue(VALUE)));

			// Add to enum parameter

			prevEnum.addMember(enumMember);

		} else if (atts.getValue(TYPE) != null) {

			// Get the parameter from model

			DecodeParameter parameter = model.getDecodeParameter(atts

					.getValue(TYPE));

			// Get the previous compoundParameter

			CompoundParameter prevCompound = handler.getVariables()

					.getPreviousCompoundParameter();

			// Add parameter and it's name to compoundParameter

			prevCompound.addParameter(parameter, atts.getValue(NAME));

		} else {

			TraceEvent event = new TraceEvent(TraceEvent.ERROR, Messages

					.getString("TypeMemberHandler.WrongTypeMember")); //$NON-NLS-1$

			event.setCategory(EVENT_CATEGORY);

			event.setSource(Integer.valueOf(handler.getLocator()

					.getLineNumber()));

			TraceDictionaryEngine.postEvent(event);

		}

	}

}