/*
 * 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.internal.cache;

import static org.apache.geode.cache.Region.SEPARATOR;
import static org.junit.Assert.assertEquals;

import org.junit.Test;

import org.apache.geode.cache.AttributesFactory;
import org.apache.geode.cache.Cache;
import org.apache.geode.cache.DataPolicy;
import org.apache.geode.cache.Region;
import org.apache.geode.cache.RegionDestroyedException;
import org.apache.geode.cache.Scope;
import org.apache.geode.test.dunit.Assert;
import org.apache.geode.test.dunit.AsyncInvocation;
import org.apache.geode.test.dunit.Host;
import org.apache.geode.test.dunit.SerializableRunnable;
import org.apache.geode.test.dunit.VM;
import org.apache.geode.test.dunit.cache.internal.JUnit4CacheTestCase;


public class ConcurrentDestroySubRegionDUnitTest extends JUnit4CacheTestCase {

  @Override
  public final void postSetUp() throws Exception {
    // this test expects to be able to create a region named "region"
    // but other tests seem to leave regions around, so we need
    // to create a new cache
    disconnectAllFromDS();
  }

  public ConcurrentDestroySubRegionDUnitTest() {
    super();
  }

  @Test
  public void test() throws Throwable {
    final Host host = Host.getHost(0);
    VM vm0 = host.getVM(0);
    VM vm1 = host.getVM(1);


    for (int i = 0; i < 200; i++) {
      final SerializableRunnable createParent = new SerializableRunnable() {

        @Override
        public void run() {
          Cache cache = getCache();
          AttributesFactory af = new AttributesFactory();
          af.setScope(Scope.DISTRIBUTED_ACK);
          af.setDataPolicy(DataPolicy.REPLICATE);
          Region region = cache.createRegion("region", af.create());
        }
      };

      vm0.invoke(createParent);
      vm1.invoke(createParent);

      final SerializableRunnable createChild = new SerializableRunnable() {

        @Override
        public void run() {
          Cache cache = getCache();
          Region region = cache.getRegion("region");
          if (region != null) {
            AttributesFactory af = new AttributesFactory();
            af.setScope(Scope.DISTRIBUTED_ACK);
            af.setDataPolicy(DataPolicy.REPLICATE);
            Region subregion = region.createSubregion("subregion", af.create());
          }

        }
      };
      vm0.invoke(createChild);

      final SerializableRunnable destroyParent = new SerializableRunnable() {

        @Override
        public void run() {
          Cache cache = getCache();
          Region region = cache.getRegion(SEPARATOR + "region");
          region.destroyRegion();
        }
      };

      AsyncInvocation future = vm0.invokeAsync(destroyParent);
      try {
        vm1.invoke(createChild);
      } catch (Exception e) {
        if (!(e.getCause() instanceof RegionDestroyedException)) {
          Assert.fail("Wrong exception", e);
        }
        RegionDestroyedException rde = (RegionDestroyedException) e.getCause();
        assertEquals("Error on loop " + i, SEPARATOR + "region", rde.getRegionFullPath());
      }
      future.getResult(60 * 1000);
    }
  }

  @Test
  public void testPartitionedRegion() throws Throwable {
    final Host host = Host.getHost(0);
    VM vm0 = host.getVM(0);
    VM vm1 = host.getVM(1);


    for (int i = 0; i < 50; i++) {
      final SerializableRunnable createParent = new SerializableRunnable() {

        @Override
        public void run() {
          Cache cache = getCache();
          AttributesFactory af = new AttributesFactory();
          af.setScope(Scope.DISTRIBUTED_ACK);
          af.setDataPolicy(DataPolicy.REPLICATE);
          Region region = cache.createRegion("region", af.create());
        }
      };

      vm0.invoke(createParent);
      vm1.invoke(createParent);

      final SerializableRunnable createChild = new SerializableRunnable() {

        @Override
        public void run() {
          Cache cache = getCache();
          Region region = cache.getRegion("region");
          if (region != null) {
            AttributesFactory af = new AttributesFactory();
            af.setDataPolicy(DataPolicy.PARTITION);
            Region subregion = region.createSubregion("subregion", af.create());
          }

        }
      };
      vm0.invoke(createChild);

      final SerializableRunnable destroyParent = new SerializableRunnable() {

        @Override
        public void run() {
          Cache cache = getCache();
          Region region = cache.getRegion(SEPARATOR + "region");
          region.destroyRegion();
        }
      };

      AsyncInvocation future = vm0.invokeAsync(destroyParent);
      try {
        vm1.invoke(createChild);
      } catch (Exception e) {
        if (!(e.getCause() instanceof RegionDestroyedException)) {
          Assert.fail("Wrong exception", e);
        }
        RegionDestroyedException rde = (RegionDestroyedException) e.getCause();
        assertEquals("Error on loop " + i, SEPARATOR + "region", rde.getRegionFullPath());
      }
      future.getResult(60 * 1000);
    }
  }

}