/*
    * 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 org.apache.commons.pool2;
  
  /**
   * Test pooled object class. Keeps track of how many times it has been validated, activated, passivated.
   *
   * @param <K> The key type.
   */
  public class VisitTracker<K> {
  
      private int validateCount;
      private int activateCount;
      private int passivateCount;
      private boolean destroyed;
      private int id;
      private K key;
  
      public VisitTracker() {
          reset();
      }
  
      public VisitTracker(final int id) {
          this.id = id;
          reset();
      }
  
      public VisitTracker(final int id, final K key) {
          this.id = id;
          this.key = key;
          reset();
      }
  
      public void activate() {
          if (destroyed) {
              fail("attempted to activate a destroyed object");
          }
          activateCount++;
      }
  
      public void destroy() {
          destroyed = true;
      }
  
      private void fail(final String message) {
          throw new IllegalStateException(message);
      }
  
      public int getActivateCount() {
          return activateCount;
      }
  
      public int getId() {
          return id;
      }
  
      public K getKey() {
          return key;
      }
  
      public int getPassivateCount() {
          return passivateCount;
      }
  
      public int getValidateCount() {
          return validateCount;
      }
  
      public boolean isDestroyed() {
          return destroyed;
      }
  
      public void passivate() {
          if (destroyed) {
              fail("attempted to passivate a destroyed object");
          }
          passivateCount++;
      }
  
      public void reset() {
          validateCount = 0;
          activateCount = 0;
          passivateCount = 0;
          destroyed = false;
      }
 
     @Override
     public String toString() {
         return "Key: " + key + " id: " + id;
     }
 
     public boolean validate() {
         if (destroyed) {
             fail("attempted to validate a destroyed object");
         }
         validateCount++;
         return true;
     }
 }