org.apache.activemq.store.kahadaptor
Class KahaPersistenceAdapter

java.lang.Object
  extended by org.apache.activemq.store.kahadaptor.KahaPersistenceAdapter
All Implemented Interfaces:
BrokerServiceAware, Service, PersistenceAdapter
Direct Known Subclasses:
KahaReferenceStoreAdapter

public class KahaPersistenceAdapter
extends Object
implements PersistenceAdapter, BrokerServiceAware


Field Summary
protected  ConcurrentHashMap<ActiveMQDestination,MessageStore> messageStores
           
protected  ConcurrentHashMap<ActiveMQQueue,MessageStore> queues
           
protected  ConcurrentHashMap<ActiveMQTopic,TopicMessageStore> topics
           
protected  KahaTransactionStore transactionStore
           
protected  OpenWireFormat wireFormat
           
 
Constructor Summary
KahaPersistenceAdapter()
           
KahaPersistenceAdapter(AtomicLong size)
           
 
Method Summary
 void beginTransaction(ConnectionContext context)
          This method starts a transaction on the persistent storage - which is nothing to do with JMS or XA transactions - its purely a mechanism to perform multiple writes to a persistent store in 1 transaction as a performance optimization.
 void checkpoint(boolean sync)
          checkpoint any
 void commitTransaction(ConnectionContext context)
          Commit a persistence transaction
protected  Marshaller<Object> createMessageMarshaller()
           
 MessageStore createQueueMessageStore(ActiveMQQueue destination)
          Factory method to create a new queue message store with the given destination name
protected  Store createStore()
           
 TopicMessageStore createTopicMessageStore(ActiveMQTopic destination)
          Factory method to create a new topic message store with the given destination name
 TransactionStore createTransactionStore()
          Factory method to create a new persistent prepared transaction store for XA recovery
 void deleteAllMessages()
          Delete's all the messages in the persistent store.
 String getBrokerName()
           
 Set<ActiveMQDestination> getDestinations()
          Returns a set of all the ActiveMQDestination objects that the persistence store is aware exist.
 File getDirectory()
           
 long getLastMessageBrokerSequenceId()
           
 long getLastProducerSequenceId(ProducerId id)
          return the last stored producer sequenceId for this producer Id used to suppress duplicate sends on failover reconnect at the transport when a reconnect occurs
protected  ListContainer<TopicSubAck> getListContainer(Object id, String containerName)
           
protected  MapContainer<MessageId,Message> getMapContainer(Object id, String containerName)
           
 long getMaxDataFileLength()
           
protected  Store getStore()
           
protected  MapContainer getSubsMapContainer(Object id, String containerName)
           
 boolean isPersistentIndex()
           
 void removeQueueMessageStore(ActiveMQQueue destination)
          Cleanup method to remove any state associated with the given destination
 void removeTopicMessageStore(ActiveMQTopic destination)
          Cleanup method to remove any state associated with the given destination
protected  MessageStore retrieveMessageStore(Object id)
           
 void rollbackTransaction(ConnectionContext context)
          Rollback a persistence transaction
 void setBrokerName(String brokerName)
          Set the name of the broker using the adapter
 void setBrokerService(BrokerService brokerService)
           
 void setDirectory(File directory)
          Set the directory where any data files should be created
 void setMaxDataFileLength(long maxDataFileLength)
          When set using Xbean, values of the form "20 Mb", "1024kb", and "1g" can be used
 void setPersistentIndex(boolean persistentIndex)
           
 void setUsageManager(SystemUsage usageManager)
           
 long size()
          A hint to return the size of the store on disk
 void start()
           
 void stop()
           
 String toString()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

wireFormat

protected OpenWireFormat wireFormat

transactionStore

protected KahaTransactionStore transactionStore

topics

protected ConcurrentHashMap<ActiveMQTopic,TopicMessageStore> topics

queues

protected ConcurrentHashMap<ActiveMQQueue,MessageStore> queues

messageStores

protected ConcurrentHashMap<ActiveMQDestination,MessageStore> messageStores
Constructor Detail

KahaPersistenceAdapter

public KahaPersistenceAdapter(AtomicLong size)

KahaPersistenceAdapter

public KahaPersistenceAdapter()
Method Detail

getDestinations

public Set<ActiveMQDestination> getDestinations()
Description copied from interface: PersistenceAdapter
Returns a set of all the ActiveMQDestination objects that the persistence store is aware exist.

Specified by:
getDestinations in interface PersistenceAdapter
Returns:
active destinations

createQueueMessageStore

public MessageStore createQueueMessageStore(ActiveMQQueue destination)
                                     throws IOException
Description copied from interface: PersistenceAdapter
Factory method to create a new queue message store with the given destination name

Specified by:
createQueueMessageStore in interface PersistenceAdapter
Returns:
the message store
Throws:
IOException

createTopicMessageStore

public TopicMessageStore createTopicMessageStore(ActiveMQTopic destination)
                                          throws IOException
Description copied from interface: PersistenceAdapter
Factory method to create a new topic message store with the given destination name

Specified by:
createTopicMessageStore in interface PersistenceAdapter
Returns:
the topic message store
Throws:
IOException

removeQueueMessageStore

public void removeQueueMessageStore(ActiveMQQueue destination)
Cleanup method to remove any state associated with the given destination

Specified by:
removeQueueMessageStore in interface PersistenceAdapter
Parameters:
destination - Destination to forget

removeTopicMessageStore

public void removeTopicMessageStore(ActiveMQTopic destination)
Cleanup method to remove any state associated with the given destination

Specified by:
removeTopicMessageStore in interface PersistenceAdapter
Parameters:
destination - Destination to forget

retrieveMessageStore

protected MessageStore retrieveMessageStore(Object id)

createTransactionStore

public TransactionStore createTransactionStore()
                                        throws IOException
Description copied from interface: PersistenceAdapter
Factory method to create a new persistent prepared transaction store for XA recovery

Specified by:
createTransactionStore in interface PersistenceAdapter
Returns:
transaction store
Throws:
IOException

beginTransaction

public void beginTransaction(ConnectionContext context)
Description copied from interface: PersistenceAdapter
This method starts a transaction on the persistent storage - which is nothing to do with JMS or XA transactions - its purely a mechanism to perform multiple writes to a persistent store in 1 transaction as a performance optimization.

Typically one transaction will require one disk synchronization point and so for real high performance its usually faster to perform many writes within the same transaction to minimize latency caused by disk synchronization. This is especially true when using tools like Berkeley Db or embedded JDBC servers.

Specified by:
beginTransaction in interface PersistenceAdapter

commitTransaction

public void commitTransaction(ConnectionContext context)
                       throws IOException
Description copied from interface: PersistenceAdapter
Commit a persistence transaction

Specified by:
commitTransaction in interface PersistenceAdapter
Throws:
IOException
See Also:
PersistenceAdapter.beginTransaction(ConnectionContext context)

rollbackTransaction

public void rollbackTransaction(ConnectionContext context)
Description copied from interface: PersistenceAdapter
Rollback a persistence transaction

Specified by:
rollbackTransaction in interface PersistenceAdapter
See Also:
PersistenceAdapter.beginTransaction(ConnectionContext context)

start

public void start()
           throws Exception
Specified by:
start in interface Service
Throws:
Exception

stop

public void stop()
          throws Exception
Specified by:
stop in interface Service
Throws:
Exception

getLastMessageBrokerSequenceId

public long getLastMessageBrokerSequenceId()
                                    throws IOException
Specified by:
getLastMessageBrokerSequenceId in interface PersistenceAdapter
Returns:
last broker sequence
Throws:
IOException

deleteAllMessages

public void deleteAllMessages()
                       throws IOException
Description copied from interface: PersistenceAdapter
Delete's all the messages in the persistent store.

Specified by:
deleteAllMessages in interface PersistenceAdapter
Throws:
IOException

getMapContainer

protected MapContainer<MessageId,Message> getMapContainer(Object id,
                                                          String containerName)
                                                   throws IOException
Throws:
IOException

getSubsMapContainer

protected MapContainer getSubsMapContainer(Object id,
                                           String containerName)
                                    throws IOException
Throws:
IOException

createMessageMarshaller

protected Marshaller<Object> createMessageMarshaller()

getListContainer

protected ListContainer<TopicSubAck> getListContainer(Object id,
                                                      String containerName)
                                               throws IOException
Throws:
IOException

setUsageManager

public void setUsageManager(SystemUsage usageManager)
Specified by:
setUsageManager in interface PersistenceAdapter
Parameters:
usageManager - The UsageManager that is controlling the broker's memory usage.

getMaxDataFileLength

public long getMaxDataFileLength()
Returns:
the maxDataFileLength

isPersistentIndex

public boolean isPersistentIndex()

setPersistentIndex

public void setPersistentIndex(boolean persistentIndex)

setMaxDataFileLength

public void setMaxDataFileLength(long maxDataFileLength)
When set using Xbean, values of the form "20 Mb", "1024kb", and "1g" can be used


getStore

protected final Store getStore()
                        throws IOException
Throws:
IOException

createStore

protected final Store createStore()
                           throws IOException
Throws:
IOException

toString

public String toString()
Overrides:
toString in class Object

setBrokerName

public void setBrokerName(String brokerName)
Description copied from interface: PersistenceAdapter
Set the name of the broker using the adapter

Specified by:
setBrokerName in interface PersistenceAdapter

getBrokerName

public String getBrokerName()

getDirectory

public File getDirectory()
Specified by:
getDirectory in interface PersistenceAdapter
Returns:
the directory used by the persistence adaptor

setDirectory

public void setDirectory(File directory)
Description copied from interface: PersistenceAdapter
Set the directory where any data files should be created

Specified by:
setDirectory in interface PersistenceAdapter

checkpoint

public void checkpoint(boolean sync)
                throws IOException
Description copied from interface: PersistenceAdapter
checkpoint any

Specified by:
checkpoint in interface PersistenceAdapter
Throws:
IOException

size

public long size()
Description copied from interface: PersistenceAdapter
A hint to return the size of the store on disk

Specified by:
size in interface PersistenceAdapter
Returns:
disk space used in bytes of 0 if not implemented

setBrokerService

public void setBrokerService(BrokerService brokerService)
Specified by:
setBrokerService in interface BrokerServiceAware

getLastProducerSequenceId

public long getLastProducerSequenceId(ProducerId id)
Description copied from interface: PersistenceAdapter
return the last stored producer sequenceId for this producer Id used to suppress duplicate sends on failover reconnect at the transport when a reconnect occurs

Specified by:
getLastProducerSequenceId in interface PersistenceAdapter
Parameters:
id - the producerId to find a sequenceId for
Returns:
the last stored sequence id or -1 if no suppression needed


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