/*
 * 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.geode.cache30;

import org.apache.geode.cache.CacheWriter;
import org.apache.geode.cache.CacheWriterException;
import org.apache.geode.cache.EntryEvent;
import org.apache.geode.cache.RegionEvent;

/**
 * A <code>CacheWriter</code> used in testing. Its callback methods are implemented to thrown
 * {@link UnsupportedOperationException} unless the user overrides the "2" methods.
 *
 * @see #wasInvoked
 *
 *
 * @since GemFire 3.0
 */
public abstract class TestCacheWriter<K, V> extends TestCacheCallback implements CacheWriter<K, V> {


  @Override
  public void beforeUpdate(EntryEvent<K, V> event) throws CacheWriterException {

    invoked = true;
    beforeUpdate2(event);
  }

  public void beforeUpdate2(EntryEvent<K, V> event) throws CacheWriterException {

    String s = "Unexpected callback invocation";
    throw new UnsupportedOperationException(s);
  }

  public void beforeUpdate2(EntryEvent<K, V> event, Object arg) throws CacheWriterException {

    String s = "Shouldn't be invoked";
    throw new UnsupportedOperationException(s);
  }

  @Override
  public void beforeCreate(EntryEvent<K, V> event) throws CacheWriterException {

    invoked = true;
    beforeCreate2(event);
  }

  public void beforeCreate2(EntryEvent<K, V> event) throws CacheWriterException {

    String s = "Unexpected callback invocation";
    throw new UnsupportedOperationException(s);
  }

  /*
   * Causes code that uses the old API to not compile
   */
  public void beforeCreate2(EntryEvent<K, V> event, Object arg) throws CacheWriterException {

    String s = "Shouldn't be invoked";
    throw new UnsupportedOperationException(s);
  }

  @Override
  public void beforeDestroy(EntryEvent<K, V> event) throws CacheWriterException {

    invoked = true;
    beforeDestroy2(event);
  }

  public void beforeDestroy2(EntryEvent<K, V> event) throws CacheWriterException {

    String s = "Unexpected callback invocation";
    throw new UnsupportedOperationException(s);
  }

  public void beforeDestroy2(EntryEvent<K, V> event, Object arg) throws CacheWriterException {

    String s = "Shouldn't be invoked";
    throw new UnsupportedOperationException(s);
  }

  @Override
  public void beforeRegionDestroy(RegionEvent<K, V> event) throws CacheWriterException {

    // check argument to see if this is during tearDown
    if ("teardown".equals(event.getCallbackArgument())) {
      return;
    }

    invoked = true;
    beforeRegionDestroy2(event);
  }

  public void beforeRegionDestroy2(RegionEvent<K, V> event) throws CacheWriterException {

    String s = "Unexpected callback invocation";
    throw new UnsupportedOperationException(s);
  }

  public void beforeRegionDestroy2(RegionEvent<K, V> event, Object arg)
      throws CacheWriterException {

    String s = "Shouldn't be invoked";
    throw new UnsupportedOperationException(s);
  }

  @Override
  public void beforeRegionClear(RegionEvent<K, V> event) throws CacheWriterException {
    String s = "Unexpected callback invocation";
    throw new UnsupportedOperationException(s);
  }
}
