package org.slf4j.helpers;
   
   import org.slf4j.ILoggerFactory;
   import org.slf4j.IMarkerFactory;
   import org.slf4j.spi.MDCAdapter;
   import org.slf4j.spi.SLF4JServiceProvider;
   
   public class SubstituteServiceProvider implements SLF4JServiceProvider {
       private final SubstituteLoggerFactory loggerFactory = new SubstituteLoggerFactory();
      private final IMarkerFactory markerFactory = new BasicMarkerFactory();
      private final MDCAdapter mdcAdapter = new BasicMDCAdapter();
  
      @Override
      public ILoggerFactory getLoggerFactory() {
          return loggerFactory;
      }
  
      public SubstituteLoggerFactory getSubstituteLoggerFactory() {
          return loggerFactory;
      }
  
      @Override
      public IMarkerFactory getMarkerFactory() {
          return markerFactory;
      }
  
      @Override
      public MDCAdapter getMDCAdapter() {
          return mdcAdapter;
      }
  
      @Override
      public String getRequestedApiVersion() {
          throw new UnsupportedOperationException();
      }
  
      @Override
      public void initialize() {
  
      }
  }