package eu.fbk.knowledgestore.populator.rdf;
   
   import javax.annotation.Nullable;
   
   import com.google.common.base.MoreObjects;
   import com.google.common.base.Preconditions;
   
   import org.openrdf.model.Statement;
   import org.openrdf.model.URI;
  
  import eu.fbk.knowledgestore.data.Handler;
  import eu.fbk.knowledgestore.data.Record;
  import eu.fbk.knowledgestore.vocabulary.CKR;
  
  public class Decoder implements Handler<Statement> {
  
      private final Handler<? super Record> axiomHandler; // axioms to be emitted here
  
      private final URI globalURI;
  
      Decoder(final Handler<? super Record> axiomHandler, @Nullable final URI globalURI) {
          this.axiomHandler = Preconditions.checkNotNull(axiomHandler);
          this.globalURI = MoreObjects.firstNonNull(globalURI, CKR.GLOBAL);
      }
  
      @Override
      public void handle(final Statement element) throws Throwable {
          // TODO
          if (element == null) {
              // end of sequence
              this.axiomHandler.handle(null);
          } else {
              // process it
          }
      }
  
  }