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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * Licensed 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. See accompanying
 * LICENSE file.
 */

/**
 * Do not modify this class. It was generated.
 * Instead modify LeafRegionEntry.cpp and then run
 * bin/generateRegionEntryClasses.sh from the directory
 * that contains your build.xml.
 */
package com.gemstone.gemfire.internal.cache;
import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
import com.gemstone.gemfire.internal.cache.Token;
import com.gemstone.gemfire.internal.concurrent.AtomicUpdaterFactory;
import com.gemstone.gemfire.internal.offheap.OffHeapRegionEntryHelper;
import com.gemstone.gemfire.internal.offheap.annotations.Released;
import com.gemstone.gemfire.internal.offheap.annotations.Retained;
import com.gemstone.gemfire.internal.offheap.annotations.Unretained;
import com.gemstone.gemfire.cache.EntryEvent;
import com.gemstone.gemfire.internal.cache.lru.EnableLRU;
import com.gemstone.gemfire.internal.cache.persistence.DiskRecoveryStore;
import com.gemstone.gemfire.internal.InternalStatisticsDisabledException;
import com.gemstone.gemfire.distributed.internal.membership.InternalDistributedMember;
import com.gemstone.gemfire.internal.cache.versions.VersionSource;
import com.gemstone.gemfire.internal.cache.versions.VersionStamp;
import com.gemstone.gemfire.internal.cache.versions.VersionTag;
import com.gemstone.gemfire.internal.concurrent.CustomEntryConcurrentHashMap.HashEntry;
@SuppressWarnings("serial")
public class VersionedStatsDiskRegionEntryOffHeap extends VMStatsDiskRegionEntry
    implements OffHeapRegionEntry, VersionStamp
{
  public VersionedStatsDiskRegionEntryOffHeap (RegionEntryContext context, Object key,
    @Retained
    Object value
      ) {
    super(context,
          (value instanceof RecoveredEntry ? null : value)
        );
    initialize(context, value);
    this.key = key;
  }
  protected int hash;
  private HashEntry next;
  @SuppressWarnings("unused")
  private volatile long lastModified;
  private static final AtomicLongFieldUpdater lastModifiedUpdater
    = AtomicUpdaterFactory.newLongFieldUpdater(VersionedStatsDiskRegionEntryOffHeap.class, "lastModified");
  protected long getlastModifiedField() {
    return lastModifiedUpdater.get(this);
  }
  protected final boolean compareAndSetLastModifiedField(long expectedValue,
      long newValue) {
    return lastModifiedUpdater.compareAndSet(this, expectedValue, newValue);
  }
  @Override
  public final int getEntryHash() {
    return this.hash;
  }
  @Override
  protected final void setEntryHash(int v) {
    this.hash = v;
  }
  @Override
  public final HashEntry getNextEntry() {
    return this.next;
  }
  @Override
  public final void setNextEntry(final HashEntry n) {
    this.next = n;
  }
  protected final void initialize(RegionEntryContext context, Object value) {
    diskInitialize(context, value);
  }
  @Override
  public final int updateAsyncEntrySize(EnableLRU capacityController) {
    throw new IllegalStateException("should never be called");
  }
  private void diskInitialize(RegionEntryContext context, Object value) {
    DiskRecoveryStore drs = (DiskRecoveryStore)context;
    DiskStoreImpl ds = drs.getDiskStore();
    long maxOplogSize = ds.getMaxOplogSize();
    this.id = DiskId.createDiskId(maxOplogSize, true , ds.needsLinkedList());
    Helper.initialize(this, drs, value);
  }
  protected DiskId id;
  public final DiskId getDiskId() {
    return this.id;
  }
  @Override
  public final void setDiskId(RegionEntry old) {
    this.id = ((AbstractDiskRegionEntry)old).getDiskId();
  }
  @Override
  public final void updateStatsForGet(boolean hit, long time)
  {
    setLastAccessed(time);
    if (hit) {
      incrementHitCount();
    } else {
      incrementMissCount();
    }
  }
  @Override
  public final void setLastModified(long lastModified) {
    _setLastModified(lastModified);
    if (!DISABLE_ACCESS_TIME_UPDATE_ON_PUT) {
      setLastAccessed(lastModified);
    }
  }
  private volatile long lastAccessed;
  private volatile int hitCount;
  private volatile int missCount;
  private static final AtomicIntegerFieldUpdater hitCountUpdater
    = AtomicUpdaterFactory.newIntegerFieldUpdater(VersionedStatsDiskRegionEntryOffHeap.class, "hitCount");
  private static final AtomicIntegerFieldUpdater missCountUpdater
    = AtomicUpdaterFactory.newIntegerFieldUpdater(VersionedStatsDiskRegionEntryOffHeap.class, "missCount");
  @Override
  public final long getLastAccessed() throws InternalStatisticsDisabledException {
    return this.lastAccessed;
  }
  private void setLastAccessed(long lastAccessed) {
    this.lastAccessed = lastAccessed;
  }
  @Override
  public final long getHitCount() throws InternalStatisticsDisabledException {
    return this.hitCount & 0xFFFFFFFFL;
  }
  @Override
  public final long getMissCount() throws InternalStatisticsDisabledException {
    return this.missCount & 0xFFFFFFFFL;
  }
  private void incrementHitCount() {
    hitCountUpdater.incrementAndGet(this);
  }
  private void incrementMissCount() {
    missCountUpdater.incrementAndGet(this);
  }
  @Override
  public final void resetCounts() throws InternalStatisticsDisabledException {
    hitCountUpdater.set(this,0);
    missCountUpdater.set(this,0);
  }
  @Override
  public final void txDidDestroy(long currTime) {
    setLastModified(currTime);
    setLastAccessed(currTime);
    this.hitCount = 0;
    this.missCount = 0;
  }
  @Override
  public final boolean hasStats() {
    return true;
  }
  private VersionSource memberID;
  private short entryVersionLowBytes;
  private short regionVersionHighBytes;
  private int regionVersionLowBytes;
  private byte entryVersionHighByte;
  private byte distributedSystemId;
  public final int getEntryVersion() {
    return ((entryVersionHighByte << 16) & 0xFF0000) | (entryVersionLowBytes & 0xFFFF);
  }
  public final long getRegionVersion() {
    return (((long)regionVersionHighBytes) << 32) | (regionVersionLowBytes & 0x00000000FFFFFFFFL);
  }
  public final long getVersionTimeStamp() {
    return getLastModified();
  }
  public final void setVersionTimeStamp(long time) {
    setLastModified(time);
  }
  public final VersionSource getMemberID() {
    return this.memberID;
  }
  public final int getDistributedSystemId() {
    return this.distributedSystemId;
  }
  public final void setVersions(VersionTag tag) {
    this.memberID = tag.getMemberID();
    int eVersion = tag.getEntryVersion();
    this.entryVersionLowBytes = (short)(eVersion & 0xffff);
    this.entryVersionHighByte = (byte)((eVersion & 0xff0000) >> 16);
    this.regionVersionHighBytes = tag.getRegionVersionHighBytes();
    this.regionVersionLowBytes = tag.getRegionVersionLowBytes();
    if (!(tag.isGatewayTag()) && this.distributedSystemId == tag.getDistributedSystemId()) {
      if (getVersionTimeStamp() <= tag.getVersionTimeStamp()) {
        setVersionTimeStamp(tag.getVersionTimeStamp());
      } else {
        tag.setVersionTimeStamp(getVersionTimeStamp());
      }
    } else {
      setVersionTimeStamp(tag.getVersionTimeStamp());
    }
    this.distributedSystemId = (byte)(tag.getDistributedSystemId() & 0xff);
  }
  public final void setMemberID(VersionSource memberID) {
    this.memberID = memberID;
  }
  @Override
  public final VersionStamp getVersionStamp() {
    return this;
  }
  public final VersionTag asVersionTag() {
    VersionTag tag = VersionTag.create(memberID);
    tag.setEntryVersion(getEntryVersion());
    tag.setRegionVersion(this.regionVersionHighBytes, this.regionVersionLowBytes);
    tag.setVersionTimeStamp(getVersionTimeStamp());
    tag.setDistributedSystemId(this.distributedSystemId);
    return tag;
  }
  public final void processVersionTag(LocalRegion r, VersionTag tag,
      boolean isTombstoneFromGII, boolean hasDelta,
      VersionSource thisVM, InternalDistributedMember sender, boolean checkForConflicts) {
    basicProcessVersionTag(r, tag, isTombstoneFromGII, hasDelta, thisVM, sender, checkForConflicts);
  }
  @Override
  public final void processVersionTag(EntryEvent cacheEvent) {
    super.processVersionTag(cacheEvent);
  }
  public final short getRegionVersionHighBytes() {
    return this.regionVersionHighBytes;
  }
  public final int getRegionVersionLowBytes() {
    return this.regionVersionLowBytes;
  }
  private Object key;
  @Override
  public final Object getRawKey() {
    return this.key;
  }
  @Override
  protected final void _setRawKey(Object key) {
    this.key = key;
  }
  @Retained @Released private volatile long ohAddress;
  private final static AtomicLongFieldUpdater ohAddrUpdater =
      AtomicUpdaterFactory.newLongFieldUpdater(VersionedStatsDiskRegionEntryOffHeap.class, "ohAddress");
  @Override
  public final boolean isOffHeap() {
    return true;
  }
  @Override
  public final Token getValueAsToken() {
    return OffHeapRegionEntryHelper.getValueAsToken(this);
  }
  @Override
  @Unretained
  protected final Object getValueField() {
    return OffHeapRegionEntryHelper._getValue(this);
  }
  @Override
  protected final void setValueField(@Unretained Object v) {
    OffHeapRegionEntryHelper.setValue(this, v);
  }
  @Override
  @Retained
  public final Object _getValueRetain(RegionEntryContext context,
      boolean decompress) {
    return OffHeapRegionEntryHelper._getValueRetain(this, decompress);
  }
  @Override
  public final long getAddress() {
    return ohAddrUpdater.get(this);
  }
  @Override
  public final boolean setAddress(long expectedAddr, long newAddr) {
    return ohAddrUpdater.compareAndSet(this, expectedAddr, newAddr);
  }
  @Override
  @Released
  public final void release() {
    OffHeapRegionEntryHelper.releaseEntry(this);
  }
  private static RegionEntryFactory factory = new RegionEntryFactory() {
    public final RegionEntry createEntry(RegionEntryContext context, Object key, Object value) {
      return new VersionedStatsDiskRegionEntryOffHeap(context, key, value);
    }
    public final Class getEntryClass() {
      return VersionedStatsDiskRegionEntryOffHeap.class;
    }
    public RegionEntryFactory makeVersioned() {
      return this;
    }
    @Override
    public RegionEntryFactory makeOnHeap() {
      return VersionedStatsDiskRegionEntryHeap.getEntryFactory();
    }
  };
  public static RegionEntryFactory getEntryFactory() {
    return factory;
  }
}




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