package org.slf4j.simple;
   
   import org.slf4j.ILoggerFactory;
   import org.slf4j.IMarkerFactory;
   import org.slf4j.helpers.BasicMarkerFactory;
   import org.slf4j.helpers.NOPMDCAdapter;
   import org.slf4j.spi.MDCAdapter;
   import org.slf4j.spi.SLF4JServiceProvider;
   
  public class SimpleServiceProvider implements SLF4JServiceProvider {
  
      /**
       * Declare the version of the SLF4J API this implementation is compiled against. 
       * The value of this field is modified with each major release. 
       */
      // to avoid constant folding by the compiler, this field must *not* be final
      public static String REQUESTED_API_VERSION = "2.0.99"; // !final
  
      private ILoggerFactory loggerFactory;
      private IMarkerFactory markerFactory;
      private MDCAdapter mdcAdapter;
  
      public ILoggerFactory getLoggerFactory() {
          return loggerFactory;
      }
  
      @Override
      public IMarkerFactory getMarkerFactory() {
          return markerFactory;
      }
  
      @Override
      public MDCAdapter getMDCAdapter() {
          return mdcAdapter;
      }
  
      @Override
      public String getRequestedApiVersion() {
          return REQUESTED_API_VERSION;
      }
  
      @Override
      public void initialize() {
  
          loggerFactory = new SimpleLoggerFactory();
          markerFactory = new BasicMarkerFactory();
          mdcAdapter = new NOPMDCAdapter();
      }
  
  }