import java.util.List;

import java.util.logging.Level;

import java.util.logging.Logger;

public static void logEvent(Logger log, Level level, Throwable throwable)

	{

		if (level==Level.SEVERE)

		{

			log.severe(throwable.getLocalizedMessage());

			if(throwable.getCause()!=null)

			log.severe(throwable.getCause().toString());

			log.severe(throwable.getStackTrace().toString());

		}

		if (level==Level.WARNING)

		{

			log.warning(throwable.getLocalizedMessage());

			if(throwable.getCause()!=null)

			log.warning(throwable.getCause().toString());

			log.warning(throwable.getStackTrace().toString());

		}

		if (level==Level.INFO)

		{

			log.info(throwable.getLocalizedMessage());

			if(throwable.getCause()!=null)

			log.info(throwable.getCause().toString());

			log.info(throwable.getStackTrace().toString());

		}

	}

	public static String replaceChar(String input, char asciiOutChar, char asciiInChar){

		char x;

		int ascii ;

		String outString="";

		int outCharAscii= (asciiOutChar > 127) ? '?' : (char)(asciiOutChar & 0x7F);

		int inCharAscii= (asciiInChar > 127) ? '?' : (char)(asciiInChar & 0x7F);

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

			 x = input.charAt(i);	

			 ascii = (x > 127) ? '?' : (char)(x & 0x7F);

			 if(ascii==outCharAscii){

				 outString=outString+asciiInChar;

			 }else{

				 outString=outString+x; 

			 }

		}

		return outString;

	}

	  public static void showData(String s) {

		System.out.println(s);

	}

	  public static void showData(List<String> listString, String header) {

		  if(listString!=null&&listString.size()>0) {

			  System.out.println("--------"+header+"------");

		  for(String s:listString){

			System.out.println(s);

			}

		  }else {

			  System.out.println("--------Empty/Null "+header+"------");

		  }

		}

		@SuppressWarnings("restriction")

		/* Validation tests for both Windows & Mac OS */

		private static String commonValidate(String argName)

		{

			if (argName.length() == 0 ) {

				return ("Can not be empty");	    		 

			}

        	// filenames starting with dot are not valid for both Widget name & UID

	    	if ( argName.charAt(0) == '.' ) {

	    		return("Can not begin with a dot");

	    	}

	    	final char lastChar = argName.charAt(argName.length()-1);

			// filenames ending in dot are not valid for both Widget name & UID

			if (lastChar == '.') {

				return("Can not end with dot");

			}

			return null;

		}

		public static String validateWidgetName(String widgetName){    	

			String strError = null;			

			if ((strError = commonValidate(widgetName)) != null)

				return "Invalid Widget name. " + strError;			

			if (widgetName.indexOf("<") > -1 || widgetName.indexOf(">") > -1){

        		return("Invalid Widget name. Angle brackets are not allowed");

        	}

			final char lastChar = widgetName.charAt(widgetName.length()-1);

			// trailing or beginning space is not valid in filenames for Widget name

			if ((Character.isWhitespace(widgetName.charAt(0)) || Character.isWhitespace(lastChar))) {

				return("Invalid Widget name. Beginning or trailing spaces are not allowed");

			}

			if (widgetName.indexOf('\n') != -1 || widgetName.indexOf('\t') != -1 ) {

				return("Invalid Widget name. newline character is not allowed");

			}

	        return null;

		}

		public static String validateWidgetID(String widgetID)

		{

			String strError = null; 			

			if ((strError = commonValidate(widgetID)) != null)

				return "Invalid Widget identifier. " + strError;

			// file names with white spaces are not allowed for Widget Identifier (UID)

        	if (widgetID.indexOf(" ") > -1 ){

        		return("Invalid Widget identifier. Whitespaces are not allowed");

        	}

        	if (widgetID.length() > 78 ) {

        		return("Invalid Widget identifier. Maximum string length exceeded");

        	}

        	/* test invalid characters, allows only alphanumeric and '.' for UID*/

			String alphnum = ".0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

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

				if (alphnum.indexOf(widgetID.charAt(i),0) == -1) {

					return("Invalid Widget identifier. Only alphanumeric or '.' is allowed");

				}

			if (widgetID.matches(".*[.]{2,}.*")) {				

				return("Invalid Widget identifier. Consecutive dots are not allowed");				

			}	        

			return null;

		}