/*

* Copyright (c) 2008 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:

*

* Trace parameter rule for adding casting and pointer operations to source code

*

*/

package com.nokia.tracecompiler.engine.rules;

import com.nokia.tracecompiler.model.TraceModelPersistentExtension;

import com.nokia.tracecompiler.model.TraceParameter;

import com.nokia.tracecompiler.source.SourceConstants;

import com.nokia.tracecompiler.source.SourceUtils;

import com.nokia.tracecompiler.source.TypeMapping;

/**

 * Trace parameter rule for adding casting and pointer operations to source code

 * 

 */

final class ParameterTypeMappingRule extends TraceParameterFormattingRuleBase

		implements TraceModelPersistentExtension {

	/**

	 * TTime.Int64() function

	 */	

	private static final String INT64_FUNCTION = ".Int64()"; //$NON-NLS-1$

	/**

	 * The type mapping

	 */

	private TypeMapping typeMapping;

	/**

	 * Storage name for this parameter

	 */

	static String STORAGE_NAME = "TypeMapping"; //$NON-NLS-1$

	/**

	 * Constructor for reflection

	 */

	ParameterTypeMappingRule() {

		typeMapping = new TypeMapping(null);

	}

	/**

	 * Creates a new type mapping rule

	 * 

	 * @param mapping

	 *            the type mapping to be used

	 */

	ParameterTypeMappingRule(TypeMapping mapping) {

		this.typeMapping = mapping;

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracecompiler.engine.rules.TraceParameterFormattingRuleBase#

	 *      mapNameToSource(java.lang.String)

	 */

	@Override

	public String mapNameToSource(String originalName) {

		StringBuffer source = new StringBuffer();

		if (typeMapping.type.equals(TraceParameter.TIME)) {

			source.append(originalName);

			source.append(INT64_FUNCTION);

		} else {

			if (typeMapping.needsCasting) {

				source.append(SourceConstants.START_PARAMETERS);

				TraceParameter param = (TraceParameter) getOwner();

				source.append(SourceUtils.mapParameterTypeToSymbianType(param));

				source.append(SourceConstants.END_PARAMETERS);

			}

			if (typeMapping.valueToPointer) {

				source.append('&');

			}

			source.append(SourceConstants.START_PARAMETERS);

			source.append(originalName);

			source.append(SourceConstants.END_PARAMETERS);

		}

		return source.toString();

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracecompiler.model.TraceModelPersistentExtension#getData()

	 */

	public String getData() {

		StringBuffer sb = new StringBuffer();

		if (typeMapping.needsCasting) {

			sb.append('C');

		}

		if (typeMapping.valueToPointer) {

			sb.append('V');

		}

		return sb.toString();

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracecompiler.model.TraceModelPersistentExtension#getStorageName()

	 */

	public String getStorageName() {

		return STORAGE_NAME;

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracecompiler.model.TraceModelPersistentExtension#setData(java.lang.String)

	 */

	public boolean setData(String data) {

		boolean retval = false;

		if (data != null) {

			for (int i = 0; i < data.length(); i++) {

				char c = data.charAt(i);

				switch (c) {

				case 'C':

					typeMapping.needsCasting = true;

					retval = true;

					break;

				case 'V':

					typeMapping.valueToPointer = true;

					retval = true;

					break;

				}

			}

		}

		return retval;

	}

}