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/**
* 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.activemq.leveldb
import org.fusesource.hawtdispatch._
import org.fusesource.hawtdispatch.BaseRetained
import java.util.concurrent._
import atomic._
import org.fusesource.hawtbuf.Buffer
import org.apache.activemq.store.{ListenableFuture, MessageRecoveryListener}
import java.lang.ref.WeakReference
import scala.Option._
import org.fusesource.hawtbuf.Buffer._
import org.apache.activemq.command._
import org.apache.activemq.leveldb.record.{SubscriptionRecord, CollectionRecord}
import java.util.HashMap
import collection.mutable.{HashSet, ListBuffer}
import org.apache.activemq.util.ByteSequence
import util.TimeMetric
import scala.Some
import org.apache.activemq.ActiveMQMessageAuditNoSync
import org.fusesource.hawtdispatch
import org.apache.activemq.broker.SuppressReplyException
case class EntryLocator(qid:Long, seq:Long)
case class DataLocator(store:LevelDBStore, pos:Long, len:Int) {
override def toString: String = "DataLocator(%x, %d)".format(pos, len)
}
case class MessageRecord(store:LevelDBStore, id:MessageId, data:Buffer, syncNeeded:Boolean) {
var locator:DataLocator = _
}
case class QueueEntryRecord(id:MessageId, queueKey:Long, queueSeq:Long, deliveries:Int=0)
case class QueueRecord(id:ActiveMQDestination, queue_key:Long)
case class QueueEntryRange()
case class SubAckRecord(subKey:Long, ackPosition:Long)
case class XaAckRecord(container:Long, seq:Long, ack:MessageAck, sub:Long = -1)
sealed trait UowState {
def stage:Int
}
// UoW is initial open.
object UowOpen extends UowState {
override def stage = 0
override def toString = "UowOpen"
}
// UoW is Committed once the broker finished creating it.
object UowClosed extends UowState {
override def stage = 1
override def toString = "UowClosed"
}
// UOW is delayed until we send it to get flushed.
object UowDelayed extends UowState {
override def stage = 2
override def toString = "UowDelayed"
}
object UowFlushQueued extends UowState {
override def stage = 3
override def toString = "UowFlushQueued"
}
object UowFlushing extends UowState {
override def stage = 4
override def toString = "UowFlushing"
}
// Then it moves on to be flushed. Flushed just
// means the message has been written to disk
// and out of memory
object UowFlushed extends UowState {
override def stage = 5
override def toString = "UowFlushed"
}
// Once completed then you know it has been synced to disk.
object UowCompleted extends UowState {
override def stage = 6
override def toString = "UowCompleted"
}
/**
*
*
*
* @author Hiram Chirino
*/
class CountDownFuture[T <: AnyRef]() extends ListenableFuture[T] {
private val latch:CountDownLatch=new CountDownLatch(1)
@volatile
var value:T = _
var error:Throwable = _
var listener:Runnable = _
def cancel(mayInterruptIfRunning: Boolean) = false
def isCancelled = false
def completed = latch.getCount()==0
def await() = latch.await()
def await(p1: Long, p2: TimeUnit) = latch.await(p1, p2)
def set(v:T) = {
value = v
latch.countDown()
fireListener
}
def failed(v:Throwable) = {
error = v
latch.countDown()
fireListener
}
def get() = {
latch.await()
if( error!=null ) {
throw error;
}
value
}
def get(p1: Long, p2: TimeUnit) = {
if(latch.await(p1, p2)) {
if( error!=null ) {
throw error;
}
value
} else {
throw new TimeoutException
}
}
def isDone = latch.await(0, TimeUnit.SECONDS);
def fireListener = {
if (listener != null) {
try {
listener.run()
} catch {
case e : Throwable => {
LevelDBStore.warn(e, "unexpected exception on future listener " +listener)
}
}
}
}
def addListener(l: Runnable) = {
listener = l
if (isDone) {
fireListener
}
}
}
object UowManagerConstants {
val QUEUE_COLLECTION_TYPE = 1
val TOPIC_COLLECTION_TYPE = 2
val TRANSACTION_COLLECTION_TYPE = 3
val SUBSCRIPTION_COLLECTION_TYPE = 4
case class QueueEntryKey(queue:Long, seq:Long)
def key(x:QueueEntryRecord) = QueueEntryKey(x.queueKey, x.queueSeq)
}
import UowManagerConstants._
class DelayableUOW(val manager:DBManager) extends BaseRetained {
val countDownFuture = new CountDownFuture[AnyRef]()
var canceled = false;
val uowId:Int = manager.lastUowId.incrementAndGet()
var actions = Map[MessageId, MessageAction]()
var subAcks = ListBuffer[SubAckRecord]()
var completed = false
var disableDelay = false
var delayableActions = 0
private var _state:UowState = UowOpen
def state = this._state
def state_=(next:UowState) {
assert(this._state.stage < next.stage)
this._state = next
}
var syncFlag = false
def syncNeeded = syncFlag || actions.find( _._2.syncNeeded ).isDefined
def size = 100+actions.foldLeft(0L){ case (sum, entry) =>
sum + (entry._2.size+100)
} + (subAcks.size * 100)
class MessageAction {
var id:MessageId = _
var messageRecord: MessageRecord = null
var enqueues = ListBuffer[QueueEntryRecord]()
var dequeues = ListBuffer[QueueEntryRecord]()
var xaAcks = ListBuffer[XaAckRecord]()
def uow = DelayableUOW.this
def isEmpty() = messageRecord==null && enqueues.isEmpty && dequeues.isEmpty && xaAcks.isEmpty
def cancel() = {
uow.rm(id)
}
def syncNeeded = messageRecord!=null && messageRecord.syncNeeded
def size = (if(messageRecord!=null) messageRecord.data.length+20 else 0) + ((enqueues.size+dequeues.size)*50) + xaAcks.foldLeft(0L){ case (sum, entry) =>
sum + 100
}
def addToPendingStore() = {
var set = manager.pendingStores.get(id)
if(set==null) {
set = HashSet()
manager.pendingStores.put(id, set)
}
set.add(this)
}
def removeFromPendingStore() = {
var set = manager.pendingStores.get(id)
if(set!=null) {
set.remove(this)
if(set.isEmpty) {
manager.pendingStores.remove(id)
}
}
}
}
def completeAsap() = this.synchronized { disableDelay=true }
def delayable = !disableDelay && delayableActions>0 && manager.flushDelay>0
def rm(msg:MessageId) = {
actions -= msg
if( actions.isEmpty && state.stage < UowFlushing.stage ) {
cancel
}
}
def cancel = {
manager.dispatchQueue.assertExecuting()
manager.uowCanceledCounter += 1
canceled = true
manager.flush_queue.remove(uowId)
onCompleted()
}
def getAction(id:MessageId) = {
actions.get(id) match {
case Some(x) => x
case None =>
val x = new MessageAction
x.id = id
actions += id->x
x
}
}
def updateAckPosition(sub_key:Long, ack_seq:Long) = {
subAcks += SubAckRecord(sub_key, ack_seq)
}
def xaAck(record:XaAckRecord) = {
this.synchronized {
getAction(record.ack.getLastMessageId).xaAcks+=record
}
countDownFuture
}
def enqueue(queueKey:Long, queueSeq:Long, message:Message, delay_enqueue:Boolean) = {
var delay = delay_enqueue && message.getTransactionId==null
if(delay ) {
manager.uowEnqueueDelayReqested += 1
} else {
manager.uowEnqueueNodelayReqested += 1
}
val id = message.getMessageId
def create_message_record: MessageRecord = {
// encodes body and release object bodies, in case message was sent from
// a VM connection. Releases additional memory.
message.storeContentAndClear()
var packet = manager.parent.wireFormat.marshal(message)
var data = new Buffer(packet.data, packet.offset, packet.length)
if (manager.snappyCompressLogs) {
data = Snappy.compress(data)
}
val record = MessageRecord(manager.parent, id, data, message.isResponseRequired)
id.setDataLocator(record)
record
}
val messageRecord = id.getDataLocator match {
case null =>
create_message_record
case record:MessageRecord =>
if( record.store == manager.parent ) {
record
} else {
create_message_record
}
case x:DataLocator =>
if( x.store == manager.parent ) {
null
} else {
create_message_record
}
}
val entry = QueueEntryRecord(id, queueKey, queueSeq)
assert(id.getEntryLocator == null)
id.setEntryLocator(EntryLocator(queueKey, queueSeq))
val a = this.synchronized {
if( !delay )
disableDelay = true
val action = getAction(entry.id)
action.messageRecord = messageRecord
action.enqueues += entry
delayableActions += 1
action
}
manager.dispatchQueue {
manager.cancelable_enqueue_actions.put(key(entry), a)
a.addToPendingStore()
}
countDownFuture
}
def incrementRedelivery(expectedQueueKey:Long, id:MessageId) = {
if( id.getEntryLocator != null ) {
val EntryLocator(queueKey, queueSeq) = id.getEntryLocator.asInstanceOf[EntryLocator];
assert(queueKey == expectedQueueKey)
val counter = manager.client.getDeliveryCounter(queueKey, queueSeq)
val entry = QueueEntryRecord(id, queueKey, queueSeq, counter+1)
val a = this.synchronized {
val action = getAction(entry.id)
action.enqueues += entry
delayableActions += 1
action
}
manager.dispatchQueue {
manager.cancelable_enqueue_actions.put(key(entry), a)
a.addToPendingStore()
}
}
countDownFuture
}
def dequeue(expectedQueueKey:Long, id:MessageId) = {
if( id.getEntryLocator != null ) {
val EntryLocator(queueKey, queueSeq) = id.getEntryLocator.asInstanceOf[EntryLocator];
assert(queueKey == expectedQueueKey)
val entry = QueueEntryRecord(id, queueKey, queueSeq)
this.synchronized {
getAction(id).dequeues += entry
}
}
countDownFuture
}
def complete_asap = this.synchronized {
disableDelay=true
if( state eq UowDelayed ) {
manager.enqueueFlush(this)
}
}
var complete_listeners = ListBuffer[()=>Unit]()
def addCompleteListener(func: =>Unit) = {
complete_listeners.append( func _ )
}
var asyncCapacityUsed = 0L
var disposed_at = 0L
override def dispose = this.synchronized {
state = UowClosed
disposed_at = System.nanoTime()
if( !syncNeeded ) {
val s = size
if( manager.asyncCapacityRemaining.addAndGet(-s) > 0 ) {
asyncCapacityUsed = s
complete_listeners.foreach(_())
} else {
manager.asyncCapacityRemaining.addAndGet(s)
}
}
// closeSource.merge(this)
manager.dispatchQueue {
manager.processClosed(this)
}
}
def onCompleted(error:Throwable=null) = this.synchronized {
if ( state.stage < UowCompleted.stage ) {
state = UowCompleted
if( asyncCapacityUsed != 0 ) {
manager.asyncCapacityRemaining.addAndGet(asyncCapacityUsed)
asyncCapacityUsed = 0
} else {
manager.uow_complete_latency.add(System.nanoTime() - disposed_at)
complete_listeners.foreach(_())
}
if( error == null ) {
countDownFuture.set(null)
} else {
countDownFuture.failed(error)
}
for( (id, action) <- actions ) {
if( !action.enqueues.isEmpty ) {
action.removeFromPendingStore()
}
for( queueEntry <- action.enqueues ) {
manager.cancelable_enqueue_actions.remove(key(queueEntry))
}
}
super.dispose
}
}
}
/**
*
*
*
* @author Hiram Chirino
*/
class DBManager(val parent:LevelDBStore) {
var lastCollectionKey = new AtomicLong(0)
var lastPListKey = new AtomicLong(0)
def client = parent.client
def writeExecutor = client.writeExecutor
def flushDelay = parent.flushDelay
val dispatchQueue = createQueue(toString)
// val aggregator = new AggregatingExecutor(dispatchQueue)
val asyncCapacityRemaining = new AtomicLong(0L)
def createUow() = new DelayableUOW(this)
var uowEnqueueDelayReqested = 0L
var uowEnqueueNodelayReqested = 0L
var uowClosedCounter = 0L
var uowCanceledCounter = 0L
var uowStoringCounter = 0L
var uowStoredCounter = 0L
val uow_complete_latency = TimeMetric()
// val closeSource = createSource(new ListEventAggregator[DelayableUOW](), dispatchQueue)
// closeSource.setEventHandler(^{
// closeSource.getData.foreach { uow =>
// processClosed(uow)
// }
// });
// closeSource.resume
var pendingStores = new ConcurrentHashMap[MessageId, HashSet[DelayableUOW#MessageAction]]()
var cancelable_enqueue_actions = new HashMap[QueueEntryKey, DelayableUOW#MessageAction]()
val lastUowId = new AtomicInteger(1)
var producerSequenceIdTracker = new ActiveMQMessageAuditNoSync
def getLastProducerSequenceId(id: ProducerId): Long = dispatchQueue.sync {
producerSequenceIdTracker.getLastSeqId(id)
}
def processClosed(uow:DelayableUOW) = {
dispatchQueue.assertExecuting()
uowClosedCounter += 1
// Broker could issue a flush_message call before
// this stage runs.. which make the stage jump over UowDelayed
if( uow.state.stage < UowDelayed.stage ) {
uow.state = UowDelayed
}
if( uow.state.stage < UowFlushing.stage ) {
uow.actions.foreach { case (id, action) =>
// The UoW may have been canceled.
if( action.messageRecord!=null && action.enqueues.isEmpty ) {
action.removeFromPendingStore()
action.messageRecord = null
uow.delayableActions -= 1
}
if( action.isEmpty ) {
action.cancel()
}
// dequeues can cancel out previous enqueues
action.dequeues.foreach { entry=>
val entry_key = key(entry)
val prev_action:DelayableUOW#MessageAction = cancelable_enqueue_actions.remove(entry_key)
if( prev_action!=null ) {
val prev_uow = prev_action.uow
prev_uow.synchronized {
if( !prev_uow.canceled ) {
prev_uow.delayableActions -= 1
// yay we can cancel out a previous enqueue
prev_action.enqueues = prev_action.enqueues.filterNot( x=> key(x) == entry_key )
if( prev_uow.state.stage >= UowDelayed.stage ) {
// if the message is not in any queues.. we can gc it..
if( prev_action.enqueues == Nil && prev_action.messageRecord !=null ) {
prev_action.removeFromPendingStore()
prev_action.messageRecord = null
prev_uow.delayableActions -= 1
}
// Cancel the action if it's now empty
if( prev_action.isEmpty ) {
prev_action.cancel()
} else if( !prev_uow.delayable ) {
// flush it if there is no point in delaying anymore
prev_uow.complete_asap
}
}
}
}
// since we canceled out the previous enqueue.. now cancel out the action
action.dequeues = action.dequeues.filterNot( _ == entry)
if( action.isEmpty ) {
action.cancel()
}
}
}
}
}
if( !uow.canceled && uow.state.stage < UowFlushQueued.stage ) {
if( uow.delayable ) {
// Let the uow get GCed if its' canceled during the delay window..
val ref = new WeakReference[DelayableUOW](uow)
scheduleFlush(ref)
} else {
enqueueFlush(uow)
}
}
}
private def scheduleFlush(ref: WeakReference[DelayableUOW]) {
dispatchQueue.executeAfter(flushDelay, TimeUnit.MILLISECONDS, ^ {
val uow = ref.get();
if (uow != null) {
enqueueFlush(uow)
}
})
}
val flush_queue = new java.util.LinkedHashMap[Long, DelayableUOW]()
def enqueueFlush(uow:DelayableUOW) = {
dispatchQueue.assertExecuting()
if( uow!=null && !uow.canceled && uow.state.stage < UowFlushQueued.stage ) {
uow.state = UowFlushQueued
flush_queue.put (uow.uowId, uow)
flushSource.merge(1)
}
}
val flushSource = createSource(EventAggregators.INTEGER_ADD, dispatchQueue)
flushSource.setEventHandler(^{drainFlushes});
flushSource.resume
def drainFlushes:Unit = {
dispatchQueue.assertExecuting()
// Some UOWs may have been canceled.
import collection.JavaConversions._
val values = flush_queue.values().toSeq.toArray
flush_queue.clear()
val uows = values.flatMap { uow=>
if( uow.canceled ) {
None
} else {
// It will not be possible to cancel the UOW anymore..
uow.state = UowFlushing
uow.actions.foreach { case (_, action) =>
action.enqueues.foreach { queue_entry=>
val action = cancelable_enqueue_actions.remove(key(queue_entry))
assert(action!=null)
}
}
if( !started ) {
uow.onCompleted(new SuppressReplyException("Store stopped"))
None
} else {
Some(uow)
}
}
}
if( !uows.isEmpty ) {
uowStoringCounter += uows.size
flushSource.suspend
writeExecutor {
val e = try {
client.store(uows)
null
} catch {
case e:Throwable => e
}
flushSource.resume
dispatchQueue {
uowStoredCounter += uows.size
uows.foreach { uow=>
uow.onCompleted(e)
}
}
}
}
}
var started = false
def snappyCompressLogs = parent.snappyCompressLogs
def start = {
asyncCapacityRemaining.set(parent.asyncBufferSize)
client.start()
dispatchQueue.sync {
started = true
pollGc
if(parent.monitorStats) {
monitorStats
}
}
}
def stop() = {
dispatchQueue.sync {
started = false
}
client.stop()
}
def pollGc:Unit = dispatchQueue.after(10, TimeUnit.SECONDS) {
if( started ) {
val positions = parent.getTopicGCPositions
writeExecutor {
if( started ) {
client.gc(positions)
pollGc
}
}
}
}
def monitorStats:Unit = dispatchQueue.after(1, TimeUnit.SECONDS) {
if( started ) {
println(("committed: %d, canceled: %d, storing: %d, stored: %d, " +
"uow complete: %,.3f ms, " +
"index write: %,.3f ms, " +
"log write: %,.3f ms, log flush: %,.3f ms, log rotate: %,.3f ms"+
"add msg: %,.3f ms, add enqueue: %,.3f ms, " +
"uowEnqueueDelayReqested: %d, uowEnqueueNodelayReqested: %d "
).format(
uowClosedCounter, uowCanceledCounter, uowStoringCounter, uowStoredCounter,
uow_complete_latency.reset,
client.max_index_write_latency.reset,
client.log.max_log_write_latency.reset, client.log.max_log_flush_latency.reset, client.log.max_log_rotate_latency.reset,
client.max_write_message_latency.reset, client.max_write_enqueue_latency.reset,
uowEnqueueDelayReqested, uowEnqueueNodelayReqested
))
uowClosedCounter = 0
// uowCanceledCounter = 0
uowStoringCounter = 0
uowStoredCounter = 0
monitorStats
}
}
/////////////////////////////////////////////////////////////////////
//
// Implementation of the Store interface
//
/////////////////////////////////////////////////////////////////////
def checkpoint(sync:Boolean) = writeExecutor.sync {
client.snapshotIndex(sync)
}
def purge = writeExecutor.sync {
client.purge
lastCollectionKey.set(1)
}
def getLastQueueEntrySeq(key:Long) = {
client.getLastQueueEntrySeq(key)
}
def collectionEmpty(key:Long) = writeExecutor.sync {
client.collectionEmpty(key)
}
def collectionSize(key:Long) = {
client.collectionSize(key)
}
def collectionIsEmpty(key:Long) = {
client.collectionIsEmpty(key)
}
def cursorMessages(preparedAcks:java.util.HashSet[MessageId], key:Long, listener:MessageRecoveryListener, startPos:Long, endPos:Long=Long.MaxValue, max:Long=Long.MaxValue) = {
var lastmsgid:MessageId = null
var count = 0L
client.queueCursor(key, startPos, endPos) { msg =>
if( !preparedAcks.contains(msg.getMessageId) && listener.recoverMessage(msg) ) {
lastmsgid = msg.getMessageId
count += 1
}
count < max
}
if( lastmsgid==null ) {
startPos
} else {
lastmsgid.getEntryLocator.asInstanceOf[EntryLocator].seq+1
}
}
def getXAActions(key:Long) = {
val msgs = ListBuffer[Message]()
val acks = ListBuffer[XaAckRecord]()
client.transactionCursor(key) { command =>
command match {
case message:Message => msgs += message
case record:XaAckRecord => acks += record
}
true
}
(msgs, acks)
}
def queuePosition(id: MessageId):Long = {
id.getEntryLocator.asInstanceOf[EntryLocator].seq
}
def createQueueStore(dest:ActiveMQQueue):LevelDBStore#LevelDBMessageStore = {
parent.createQueueMessageStore(dest, createCollection(utf8(dest.getQualifiedName), QUEUE_COLLECTION_TYPE))
}
def destroyQueueStore(key:Long) = writeExecutor.sync {
client.removeCollection(key)
}
def getLogAppendPosition = writeExecutor.sync {
client.getLogAppendPosition
}
def addSubscription(topic_key:Long, info:SubscriptionInfo):DurableSubscription = {
val record = new SubscriptionRecord.Bean
record.setTopicKey(topic_key)
record.setClientId(info.getClientId)
record.setSubscriptionName(info.getSubscriptionName)
if( info.getSelector!=null ) {
record.setSelector(info.getSelector)
}
if( info.getDestination!=null ) {
record.setDestinationName(info.getDestination.getQualifiedName)
}
val collection = new CollectionRecord.Bean()
collection.setType(SUBSCRIPTION_COLLECTION_TYPE)
collection.setKey(lastCollectionKey.incrementAndGet())
collection.setMeta(record.freeze().toUnframedBuffer)
val buffer = collection.freeze()
buffer.toFramedBuffer // eager encode the record.
writeExecutor.sync {
client.addCollection(buffer)
}
DurableSubscription(collection.getKey, topic_key, info)
}
def removeSubscription(sub:DurableSubscription) {
writeExecutor.sync {
client.removeCollection(sub.subKey)
}
}
def createTopicStore(dest:ActiveMQTopic) = {
var key = createCollection(utf8(dest.getQualifiedName), TOPIC_COLLECTION_TYPE)
parent.createTopicMessageStore(dest, key)
}
def createCollection(name:Buffer, collectionType:Int) = {
val collection = new CollectionRecord.Bean()
collection.setType(collectionType)
collection.setMeta(name)
collection.setKey(lastCollectionKey.incrementAndGet())
val buffer = collection.freeze()
buffer.toFramedBuffer // eager encode the record.
writeExecutor.sync {
client.addCollection(buffer)
}
collection.getKey
}
def buffer(packet:ByteSequence) = new Buffer(packet.data, packet.offset, packet.length)
def createTransactionContainer(id:XATransactionId) =
createCollection(buffer(parent.wireFormat.marshal(id)), TRANSACTION_COLLECTION_TYPE)
def removeTransactionContainer(key:Long) = writeExecutor.sync {
client.removeCollection(key)
}
def loadCollections = {
val collections = writeExecutor.sync {
client.listCollections
}
var last = 0L
collections.foreach { case (key, record) =>
last = key
record.getType match {
case QUEUE_COLLECTION_TYPE =>
val dest = ActiveMQDestination.createDestination(record.getMeta.utf8().toString, ActiveMQDestination.QUEUE_TYPE).asInstanceOf[ActiveMQQueue]
parent.createQueueMessageStore(dest, key)
case TOPIC_COLLECTION_TYPE =>
val dest = ActiveMQDestination.createDestination(record.getMeta.utf8().toString, ActiveMQDestination.TOPIC_TYPE).asInstanceOf[ActiveMQTopic]
parent.createTopicMessageStore(dest, key)
case SUBSCRIPTION_COLLECTION_TYPE =>
val sr = SubscriptionRecord.FACTORY.parseUnframed(record.getMeta)
val info = new SubscriptionInfo
info.setClientId(sr.getClientId)
info.setSubscriptionName(sr.getSubscriptionName)
if( sr.hasSelector ) {
info.setSelector(sr.getSelector)
}
if(sr.hasDestinationName) {
info.setSubscribedDestination(ActiveMQDestination.createDestination(sr.getDestinationName, ActiveMQDestination.TOPIC_TYPE))
}
var sub = DurableSubscription(key, sr.getTopicKey, info)
sub.lastAckPosition = client.getAckPosition(key);
sub.gcPosition = sub.lastAckPosition
parent.createSubscription(sub)
case TRANSACTION_COLLECTION_TYPE =>
val meta = record.getMeta
val txid = parent.wireFormat.unmarshal(new ByteSequence(meta.data, meta.offset, meta.length)).asInstanceOf[XATransactionId]
val transaction = parent.transaction(txid)
transaction.xacontainer_id = key
case _ =>
}
}
lastCollectionKey.set(last)
}
def createPList(name:String):LevelDBStore#LevelDBPList = {
parent.createPList(name, lastPListKey.incrementAndGet())
}
def destroyPList(key:Long) = writeExecutor.sync {
client.removePlist(key)
}
def plistPut(key:Array[Byte], value:Array[Byte]) = client.plistPut(key, value)
def plistGet(key:Array[Byte]) = client.plistGet(key)
def plistDelete(key:Array[Byte]) = client.plistDelete(key)
def plistIterator = client.plistIterator
def getMessage(x: MessageId):Message = {
val id = Option(pendingStores.get(x)).flatMap(_.headOption).map(_.id).getOrElse(x)
val locator = id.getDataLocator()
val msg = client.getMessage(locator)
if( msg!=null ) {
msg.setMessageId(id)
} else {
LevelDBStore.warn("Could not load messages for: "+x+" at: "+locator)
}
msg
}
}