/*****************************************************************************
 * Copyright (c) 2019 CEA LIST.
 *
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *  Xavier Le Pallec (for CEA LIST) xlepallec@lilo.org - Bug 558456
 *
 *****************************************************************************/

package org.eclipse.papyrus.uml.diagram.clazz.lf.associationlabellayout;

import org.eclipse.papyrus.infra.core.log.LogHelper;
import org.eclipse.papyrus.uml.diagram.clazz.lf.associationlabellayout.messages.Messages;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

public class Activator extends AbstractUIPlugin {

	// The plug-in ID
		public static final String PLUGIN_ID = "org.eclipse.papyrus.uml.diagram.clazz.lf.associationlabellayout"; //$NON-NLS-1$

		// The shared instance
		private static Activator plugin;
		
		private LogHelper myLogHelper;
		

		/**
		 * The constructor
		 */
		public Activator() {
			
		}

		@Override
		public void start(BundleContext context) throws Exception {
			super.start(context);
			plugin = this;
		}

		@Override
		public void stop(BundleContext context) throws Exception {
			plugin = null;
			super.stop(context);
		}

		/**
		 * Returns the shared instance
		 *
		 * @return the shared instance
		 */
		public static Activator getDefault() {
			return plugin;
		}
		
		/**
		 * Logs an error through a message (param)
		 * @param error
		 */
		public void logError(String error) {
			getLogHelper().warn(error);
		}

		/**
		 * Logs an error through a message and an exception (params)
		 * @param error
		 * @param throwable
		 */
		public void logError(String error, Throwable throwable) {
			getLogHelper().error(error, throwable);
		}

		/**
		 * Logs an information through a message (param)
		 * @param message
		 */
		public void logInfo(String message) {
			getLogHelper().info(message);
		}

		/**
		 * Logs an information through a message and an exception (params)
		 * @param message
		 * @param throwable
		 */
		public void logInfo(String message, Throwable throwable) {
			getLogHelper().error(message, throwable);
		}

		/**
		 * Gets the LogHelper
		 * @return
		 */
		public LogHelper getLogHelper() {
			if (myLogHelper==null) {
				myLogHelper=new LogHelper(getDefault());
			}
			return myLogHelper;
		}

		public void logNullParameter(String parameterName) {
			getLogHelper().warn(Messages.Activator_Parameter+parameterName+Messages.Activator_IsNullInMethod+getMethodName(4));
		}
		
		public void logNullParameter(String parameterName, int deep) {
			getLogHelper().warn(Messages.Activator_Parameter+parameterName+Messages.Activator_IsNullInMethod+getMethodName(deep));
		}
		
		public void logCastProblem(String variableName, Class targetCastClass, int deep) {
			getLogHelper().warn(variableName+Messages.Activator_CannotBeCastedIn+targetCastClass.getName()+Messages.Activator_InMethod+getMethodName(deep));
		}
		
		public void logCastProblem(String variableName, Class targetCastClass) {
			getLogHelper().warn(variableName+Messages.Activator_CannotBeCastedIn+targetCastClass.getName()+Messages.Activator_InMethod+getMethodName(3));
		}
		
		/**
		 * Get the method name for a depth in call stack. <br />
		 * Utility function
		 * @param depth depth in the call stack (0 means current method, 1 means call method, ...)
		 * @return method name
		 */
		public static String getMethodName(int deep)
		{
		  final StackTraceElement[] ste = Thread.currentThread().getStackTrace();
		  return ste[deep].getMethodName()+"("+ste[deep].getClassName()+")"; 
		}

}