/*

* Copyright (c) 2007 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:

*

* Configuration listener

*

*/

package com.nokia.tracebuilder.engine.rules;

import com.nokia.tracebuilder.engine.TraceBuilderConfiguration;

import com.nokia.tracebuilder.engine.TraceBuilderConfigurationListener;

import com.nokia.tracebuilder.engine.TraceBuilderGlobals;

/**

 * Configuration listener for rule engine monitors the trace formatting

 * 

 */

final class RulesEngineConfigurationListener implements

		TraceBuilderConfigurationListener {

	/**

	 * Rules engine

	 */

	private RulesEngine engine;

	/**

	 * Constructor

	 * 

	 * @param engine

	 *            the rules engine

	 */

	RulesEngineConfigurationListener(RulesEngine engine) {

		this.engine = engine;

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracebuilder.engine.TraceBuilderConfigurationListener#

	 *      configurationChanged(java.lang.String, java.lang.Object)

	 */

	public void configurationChanged(String property, Object newValue) {

		if (property.equals(TraceBuilderConfiguration.FORMATTER_NAME)) {

			if (TraceBuilderConfiguration.ALLOW_FORMAT_CHANGE) {

				engine.traceAPIChanged((String) newValue);

			}

		} else if (property.equals(TraceBuilderConfiguration.PRINTF_SUPPORT)

				|| property.equals(TraceBuilderConfiguration.PRINTF_EXTENSION)) {

			printfConfigurationChanged();

		}

	}

	/**

	 * Updates the printf configuration

	 */

	private void printfConfigurationChanged() {

		boolean flag = TraceBuilderGlobals.getConfiguration().getFlag(

				TraceBuilderConfiguration.PRINTF_SUPPORT);

		String name = TraceBuilderGlobals.getConfiguration().getText(

				TraceBuilderConfiguration.PRINTF_EXTENSION);

		engine.enablePrintfParser(flag);

		if (!flag) {

			engine.setPrintfMacroExtension(""); //$NON-NLS-1$

		} else {

			engine.setPrintfMacroExtension(name);

		}

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracebuilder.engine.TraceBuilderConfigurationListener#configurationCreated()

	 */

	public void configurationCreated() {

		if (TraceBuilderConfiguration.ALLOW_FORMAT_CHANGE) {

			engine.traceAPIChanged(TraceBuilderGlobals.getConfiguration()

					.getText(TraceBuilderConfiguration.FORMATTER_NAME));

		}

		boolean flag = TraceBuilderGlobals.getConfiguration().getFlag(

				TraceBuilderConfiguration.PRINTF_SUPPORT);

		engine.enablePrintfParser(flag);

		if (flag) {

			engine.setPrintfMacroExtension(TraceBuilderGlobals

					.getConfiguration().getText(

							TraceBuilderConfiguration.PRINTF_EXTENSION));

		}

	}

}