/**
@ Name            SFApexUtilFunctions
@ Author          Aslam Bari
@ Created Date    31 March, 2011
@ Description     A utility methods class for helping developers community
*/
public class SFApexUtilFunctions{

 /**
 @ Name            join
 @ Author          Aslam Bari
 @ Created Date    31 March, 2011
 @ Desctiption     Join one list of String to a full string
 @ Param           List<String>: list of string data
 @ Param           separator: the string by which the list is joined
 */
 public static string join(List<String> lstArg, String separator){
     String fullString = '';
     for(String item: lstArg){
         fullString += item + separator;
     }
     if(fullString.length() > 0)
         fullString = fullString.substring(0, fullString.length() - 1);
  
     return fullString;
 }

 /**
 @ Name            getUrlContents
 @ Author          Aslam Bari
 @ Created Date    31 March, 2011
 @ Desctiption     Fetch the contents of remote url
 @ Param           url: remote url with all parameters attached to url for GET call
 */
 public static string getUrlContents(String url){
     HttpRequest request = new HttpRequest();
     request.setEndPoint(url);
     request.setMethod('GET');
     Http call = new Http();
     HttpResponse response = call.send(request);
     return response.getBody();
 }
}