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Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing
/*
* 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;
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
import org.apache.geode.cache.EntryEvent;
import org.apache.geode.distributed.internal.membership.InternalDistributedMember;
import org.apache.geode.internal.cache.versions.VersionSource;
import org.apache.geode.internal.cache.versions.VersionStamp;
import org.apache.geode.internal.cache.versions.VersionTag;
import org.apache.geode.internal.offheap.OffHeapRegionEntryHelper;
import org.apache.geode.internal.offheap.annotations.Released;
import org.apache.geode.internal.offheap.annotations.Retained;
import org.apache.geode.internal.offheap.annotations.Unretained;
import org.apache.geode.internal.util.concurrent.CustomEntryConcurrentHashMap.HashEntry;
// macros whose definition changes this class:
// disk: DISK
// lru: LRU
// stats: STATS
// versioned: VERSIONED
// offheap: OFFHEAP
// One of the following key macros must be defined:
// key object: KEY_OBJECT
// key int: KEY_INT
// key long: KEY_LONG
// key uuid: KEY_UUID
// key string1: KEY_STRING1
// key string2: KEY_STRING2
/**
* Do not modify this class. It was generated. Instead modify LeafRegionEntry.cpp and then run
* ./dev-tools/generateRegionEntryClasses.sh (it must be run from the top level directory).
*/
public class VersionedThinRegionEntryOffHeapStringKey1 extends VersionedThinRegionEntryOffHeap {
public VersionedThinRegionEntryOffHeapStringKey1(RegionEntryContext context, String key,
@Retained Object value, boolean byteEncode) {
super(context, value);
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
// caller has already confirmed that key.length <= MAX_INLINE_STRING_KEY
long tmpBits1 = 0L;
if (byteEncode) {
for (int i = key.length() - 1; i >= 0; i--) {
// Note: we know each byte is <= 0x7f so the "& 0xff" is not needed. But I added it in to
// keep findbugs happy.
tmpBits1 |= (byte) key.charAt(i) & 0xff;
tmpBits1 <<= 8;
}
tmpBits1 |= 1 << 6;
} else {
for (int i = key.length() - 1; i >= 0; i--) {
tmpBits1 |= key.charAt(i);
tmpBits1 <<= 16;
}
}
tmpBits1 |= key.length();
this.bits1 = tmpBits1;
}
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
// common code
protected int hash;
private HashEntry next;
@SuppressWarnings("unused")
private volatile long lastModified;
private static final AtomicLongFieldUpdater lastModifiedUpdater =
AtomicLongFieldUpdater.newUpdater(VersionedThinRegionEntryOffHeapStringKey1.class,
"lastModified");
/**
* All access done using ohAddrUpdater so it is used even though the compiler can not tell it is.
*/
@SuppressWarnings("unused")
@Retained
@Released
private volatile long ohAddress;
/**
* I needed to add this because I wanted clear to call setValue which normally can only be called
* while the re is synced. But if I sync in that code it causes a lock ordering deadlock with the
* disk regions because they also get a rw lock in clear. Some hardware platforms do not support
* CAS on a long. If gemfire is run on one of those the AtomicLongFieldUpdater does a sync on the
* re and we will once again be deadlocked. I don't know if we support any of the hardware
* platforms that do not have a 64bit CAS. If we do then we can expect deadlocks on disk regions.
*/
private final static AtomicLongFieldUpdater ohAddrUpdater =
AtomicLongFieldUpdater.newUpdater(VersionedThinRegionEntryOffHeapStringKey1.class,
"ohAddress");
@Override
public Token getValueAsToken() {
return OffHeapRegionEntryHelper.getValueAsToken(this);
}
@Override
protected Object getValueField() {
return OffHeapRegionEntryHelper._getValue(this);
}
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
@Override
@Unretained
protected void setValueField(@Unretained Object v) {
OffHeapRegionEntryHelper.setValue(this, v);
}
@Override
@Retained
public Object _getValueRetain(RegionEntryContext context, boolean decompress) {
return OffHeapRegionEntryHelper._getValueRetain(this, decompress, context);
}
@Override
public long getAddress() {
return ohAddrUpdater.get(this);
}
@Override
public boolean setAddress(long expectedAddr, long newAddr) {
return ohAddrUpdater.compareAndSet(this, expectedAddr, newAddr);
}
@Override
@Released
public void release() {
OffHeapRegionEntryHelper.releaseEntry(this);
}
@Override
public void returnToPool() {
// Deadcoded for now; never was working
// if (this instanceof VMThinRegionEntryLongKey) {
// factory.returnToPool((VMThinRegionEntryLongKey)this);
// }
}
protected long getlastModifiedField() {
return lastModifiedUpdater.get(this);
}
protected boolean compareAndSetLastModifiedField(long expectedValue, long newValue) {
return lastModifiedUpdater.compareAndSet(this, expectedValue, newValue);
}
/**
* @see HashEntry#getEntryHash()
*/
public final int getEntryHash() {
return this.hash;
}
protected void setEntryHash(int v) {
this.hash = v;
}
/**
* @see HashEntry#getNextEntry()
*/
public final HashEntry getNextEntry() {
return this.next;
}
/**
* @see HashEntry#setNextEntry
*/
public final void setNextEntry(final HashEntry n) {
this.next = n;
}
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
// versioned code
private VersionSource memberID;
private short entryVersionLowBytes;
private short regionVersionHighBytes;
private int regionVersionLowBytes;
private byte entryVersionHighByte;
private byte distributedSystemId;
public int getEntryVersion() {
return ((entryVersionHighByte << 16) & 0xFF0000) | (entryVersionLowBytes & 0xFFFF);
}
public long getRegionVersion() {
return (((long) regionVersionHighBytes) << 32) | (regionVersionLowBytes & 0x00000000FFFFFFFFL);
}
public long getVersionTimeStamp() {
return getLastModified();
}
public void setVersionTimeStamp(long time) {
setLastModified(time);
}
public VersionSource getMemberID() {
return this.memberID;
}
public int getDistributedSystemId() {
return this.distributedSystemId;
}
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
public 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 void setMemberID(VersionSource memberID) {
this.memberID = memberID;
}
@Override
public VersionStamp getVersionStamp() {
return this;
}
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
public 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 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 void processVersionTag(EntryEvent cacheEvent) {
// this keeps Eclipse happy. without it the sender chain becomes confused
// while browsing this code
super.processVersionTag(cacheEvent);
}
/** get rvv internal high byte. Used by region entries for transferring to storage */
public short getRegionVersionHighBytes() {
return this.regionVersionHighBytes;
}
/** get rvv internal low bytes. Used by region entries for transferring to storage */
public int getRegionVersionLowBytes() {
return this.regionVersionLowBytes;
}
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
// key code
private final long bits1;
private int getKeyLength() {
return (int) (this.bits1 & 0x003fL);
}
private int getEncoding() {
// 0 means encoded as char
// 1 means encoded as bytes that are all <= 0x7f;
return (int) (this.bits1 >> 6) & 0x03;
}
@Override
public final Object getKey() {
int keylen = getKeyLength();
char[] chars = new char[keylen];
long tmpBits1 = this.bits1;
if (getEncoding() == 1) {
for (int i = 0; i < keylen; i++) {
tmpBits1 >>= 8;
chars[i] = (char) (tmpBits1 & 0x00ff);
}
} else {
for (int i = 0; i < keylen; i++) {
tmpBits1 >>= 16;
chars[i] = (char) (tmpBits1 & 0x00FFff);
}
}
return new String(chars);
}
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
@Override
public boolean isKeyEqual(Object k) {
if (k instanceof String) {
String str = (String) k;
int keylen = getKeyLength();
if (str.length() == keylen) {
long tmpBits1 = this.bits1;
if (getEncoding() == 1) {
for (int i = 0; i < keylen; i++) {
tmpBits1 >>= 8;
char c = (char) (tmpBits1 & 0x00ff);
if (str.charAt(i) != c) {
return false;
}
}
} else {
for (int i = 0; i < keylen; i++) {
tmpBits1 >>= 16;
char c = (char) (tmpBits1 & 0x00FFff);
if (str.charAt(i) != c) {
return false;
}
}
}
return true;
}
}
return false;
}
// DO NOT modify this class. It was generated from LeafRegionEntry.cpp
}