content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *       http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  
  package harry.visitors;
  
  import java.util.Arrays;
  import java.util.function.LongSupplier;
  
  public abstract class ReplayingVisitor extends LtsVisitor
  {
      public ReplayingVisitor(VisitExecutor delegate, LongSupplier ltsSource)
      {
          super(delegate, ltsSource);
      }
  
      @Override
      public void visit(long lts)
      {
          replay(getVisit(lts));
      }
  
      public abstract Visit getVisit(long lts);
  
      public abstract void replayAll();
  
      private void replay(Visit visit)
      {
          beforeLts(visit.lts, visit.pd);
          for (Operation operation : visit.operations)
              operation(operation);
          afterLts(visit.lts, visit.pd);
      }
  
      public static class Visit
      {
          public final long lts;
          public final long pd;
          public final Operation[] operations;
  
          public Visit(long lts, long pd, Operation[] operations)
          {
              this.lts = lts;
              this.pd = pd;
              this.operations = operations;
          }
  
          public String toString()
          {
              return "Visit{" +
                     "lts=" + lts +
                     ", pd=" + pd +
                     ", operations=[" + Arrays.toString(operations) +
                                              "]}";
          }
  
  
      }
  }