/*
 * 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.offheap;

import static org.apache.geode.distributed.ConfigurationProperties.LOCATORS;
import static org.apache.geode.distributed.ConfigurationProperties.MCAST_PORT;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.util.Properties;
import java.util.UUID;

import org.junit.Test;
import org.junit.experimental.categories.Category;

import org.apache.geode.cache.CacheFactory;
import org.apache.geode.cache.Region;
import org.apache.geode.cache.RegionShortcut;
import org.apache.geode.cache.util.ObjectSizer;
import org.apache.geode.distributed.ConfigurationProperties;
import org.apache.geode.internal.cache.GemFireCacheImpl;
import org.apache.geode.internal.cache.LocalRegion;
import org.apache.geode.internal.cache.entries.VMThinRegionEntryOffHeapIntKey;
import org.apache.geode.internal.cache.entries.VMThinRegionEntryOffHeapLongKey;
import org.apache.geode.internal.cache.entries.VMThinRegionEntryOffHeapObjectKey;
import org.apache.geode.internal.cache.entries.VMThinRegionEntryOffHeapStringKey1;
import org.apache.geode.internal.cache.entries.VMThinRegionEntryOffHeapStringKey2;
import org.apache.geode.internal.cache.entries.VMThinRegionEntryOffHeapUUIDKey;
import org.apache.geode.test.junit.categories.OffHeapTest;

@Category({OffHeapTest.class})
public class InlineKeyJUnitTest {
  private GemFireCacheImpl createCache() {
    Properties props = new Properties();
    props.setProperty(LOCATORS, "");
    props.setProperty(MCAST_PORT, "0");
    props.setProperty(ConfigurationProperties.OFF_HEAP_MEMORY_SIZE, "1m");
    GemFireCacheImpl result = (GemFireCacheImpl) new CacheFactory(props).create();
    return result;
  }

  private void closeCache(GemFireCacheImpl gfc) {
    gfc.close();
  }

  @Test
  public void testInlineKeys() {
    GemFireCacheImpl gfc = createCache();
    try {
      Region r = gfc.createRegionFactory(RegionShortcut.LOCAL).setConcurrencyChecksEnabled(false)
          .setOffHeap(true).create("inlineKeyRegion");
      LocalRegion lr = (LocalRegion) r;
      Object key = 1;
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected int entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapIntKey);
      key = 2L;
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected long entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapLongKey);
      key = new UUID(1L, 2L);
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected uuid entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapUUIDKey);
      key = "";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey1);
      key = "1";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey1);
      key = "12";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey1);
      key = "123";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey1);
      key = "1234";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey1);
      key = "12345";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey1);
      key = "123456";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey1);
      key = "1234567";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey1);
      key = "12345678";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey2);
      key = "123456789";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey2);
      key = "1234567890";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey2);
      key = "12345678901";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey2);
      key = "123456789012";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey2);
      key = "1234567890123";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey2);
      key = "12345678901234";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey2);
      key = "123456789012345";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string entry but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapStringKey2);

      key = "1234567890123456";
      r.create(key, null);
      assertEquals(true, r.containsKey(key));
      assertTrue("expected string object but was " + lr.getRegionEntry(key).getClass(),
          lr.getRegionEntry(key) instanceof VMThinRegionEntryOffHeapObjectKey);

    } finally {
      closeCache(gfc);
    }
  }

  private static int getMemSize(Object o) {
    return ObjectSizer.REFLECTION_SIZE.sizeof(o);
  }

  @Test
  public void testMemoryOverhead() {
    Object re = new VMThinRegionEntryOffHeapIntKey(null, 1, null);
    // System.out.println("VMThinRegionEntryIntKey=" + getMemSize(re));
    Object re2 = new VMThinRegionEntryOffHeapObjectKey(null, 1, null);
    // System.out.println("VMThinRegionEntryObjectKey=" + getMemSize(re2));
    assertTrue(getMemSize(re) < getMemSize(re2));

    re = new VMThinRegionEntryOffHeapLongKey(null, 1L, null);
    // System.out.println("VMThinRegionEntryLongKey=" + getMemSize(re));
    re2 = new VMThinRegionEntryOffHeapObjectKey(null, 1L, null);
    // System.out.println("VMThinRegionEntryObjectKey=" + getMemSize(re2));
    assertTrue(getMemSize(re) < getMemSize(re2));

    re = new VMThinRegionEntryOffHeapUUIDKey(null, new UUID(1L, 2L), null);
    // System.out.println("VMThinRegionEntryUUIDKey=" + getMemSize(re));
    re2 = new VMThinRegionEntryOffHeapObjectKey(null, new UUID(1L, 2L), null);
    // System.out.println("VMThinRegionEntryObjectKey=" + getMemSize(re2));
    assertTrue(getMemSize(re) < getMemSize(re2));

    re = new VMThinRegionEntryOffHeapStringKey1(null, "1234567", null, true);
    // System.out.println("VMThinRegionEntryStringKey1=" + getMemSize(re));
    re2 = new VMThinRegionEntryOffHeapObjectKey(null, "1234567", null);
    // System.out.println("VMThinRegionEntryObjectKey=" + getMemSize(re2));
    assertTrue(getMemSize(re) < getMemSize(re2));

    re = new VMThinRegionEntryOffHeapStringKey2(null, "123456789012345", null, true);
    // System.out.println("VMThinRegionEntryStringKey2=" + getMemSize(re));
    re2 = new VMThinRegionEntryOffHeapObjectKey(null, "123456789012345", null);
    // System.out.println("VMThinRegionEntryObjectKey=" + getMemSize(re2));
    assertTrue(getMemSize(re) < getMemSize(re2));
  }
}
