/// <summary>
/// Determines whether the given JMS Session is transactional, that is,
/// bound to the current thread by Spring's transaction facilities.
/// </summary>
/// <param name="session">The session to check.</param>
/// <param name="cf">The ConnectionFactory that the Session originated from</param>
/// <returns>
/// <c>true</c> if is session transactional, bound to current thread; otherwise, <c>false</c>.
/// </returns>
public static bool IsSessionTransactional(ISession session, IConnectionFactory cf)
{
if (session == null || cf == null)
{
return(false);
}
NmsResourceHolder resourceHolder = (NmsResourceHolder)TransactionSynchronizationManager.GetResource(cf);
return(resourceHolder != null && resourceHolder.ContainsSession(session));
}
/// <summary>
/// Resume the resources of the current transaction.
/// </summary>
/// <param name="transaction">Transaction object returned by
/// <see cref="Spring.Transaction.Support.AbstractPlatformTransactionManager.DoGetTransaction"/>.</param>
/// <param name="suspendedResources">The object that holds suspended resources as returned by
/// <see cref="Spring.Transaction.Support.AbstractPlatformTransactionManager.DoSuspend"/>.</param>
/// <remarks>Transaction synchronization will be resumed afterwards.
/// </remarks>
/// <exception cref="Spring.Transaction.TransactionException">
/// In the case of system errors.
/// </exception>
protected override void DoResume(object transaction, object suspendedResources)
{
NmsResourceHolder conHolder = (NmsResourceHolder)suspendedResources;
TransactionSynchronizationManager.BindResource(ConnectionFactory, conHolder);
}
public NmsResourceSynchronization(NmsResourceHolder resourceHolder, object resourceKey, bool transacted)
{
this.resourceKey = resourceKey;
this.resourceHolder = resourceHolder;
this.transacted = transacted;
}
public virtual IConnection GetConnection(NmsResourceHolder holder)
{
return (existingCon != null ? existingCon : holder.GetConnection());
}
public virtual ISession GetSession(NmsResourceHolder holder)
{
return holder.GetSession(typeof(ISession), existingCon);
}
/// <summary>
/// Obtain a NMS Session that is synchronized with the current transaction, if any.
/// </summary>
/// <param name="resourceKey">the TransactionSynchronizationManager key to bind to
/// (usually the ConnectionFactory)</param>
/// <param name="resourceFactory">the ResourceFactory to use for extracting or creating
/// NMS resources</param>
/// <param name="startConnection">whether the underlying Connection approach should be
/// started in order to allow for receiving messages. Note that a reused Connection
/// may already have been started before, even if this flag is <code>false</code>.</param>
/// <returns>
/// the transactional Session, or <code>null</code> if none found
/// </returns>
/// <throws>NMSException in case of NMS failure </throws>
public static ISession DoGetTransactionalSession(Object resourceKey, ResourceFactory resourceFactory, bool startConnection)
{
AssertUtils.ArgumentNotNull(resourceKey, "Resource key must not be null");
AssertUtils.ArgumentNotNull(resourceKey, "ResourceFactory must not be null");
NmsResourceHolder resourceHolder =
(NmsResourceHolder)TransactionSynchronizationManager.GetResource(resourceKey);
if (resourceHolder != null)
{
ISession rhSession = resourceFactory.GetSession(resourceHolder);
if (rhSession != null)
{
if (startConnection)
{
IConnection conn = resourceFactory.GetConnection(resourceHolder);
if (conn != null)
{
conn.Start();
}
}
return rhSession;
}
}
if (!TransactionSynchronizationManager.SynchronizationActive)
{
return null;
}
NmsResourceHolder resourceHolderToUse = resourceHolder;
if (resourceHolderToUse == null)
{
resourceHolderToUse = new NmsResourceHolder();
}
IConnection con = resourceFactory.GetConnection(resourceHolderToUse);
ISession session = null;
try
{
bool isExistingCon = (con != null);
if (!isExistingCon)
{
con = resourceFactory.CreateConnection();
resourceHolderToUse.AddConnection(con);
}
session = resourceFactory.CreateSession(con);
resourceHolderToUse.AddSession(session, con);
if (startConnection)
{
con.Start();
}
}
catch (NMSException)
{
if (session != null)
{
try
{
session.Close();
}
catch (Exception)
{
// ignore
}
}
if (con != null)
{
try
{
con.Close();
}
catch (Exception)
{
// ignore
}
}
throw;
}
if (resourceHolderToUse != resourceHolder)
{
TransactionSynchronizationManager.RegisterSynchronization(
new NmsResourceSynchronization(resourceHolderToUse, resourceKey,
resourceFactory.SynchedLocalTransactionAllowed));
resourceHolderToUse.SynchronizedWithTransaction = true;
TransactionSynchronizationManager.BindResource(resourceKey, resourceHolderToUse);
}
return session;
}
/// <summary> Fetch an appropriate Session from the given MessageResourceHolder.
/// </summary>
/// <param name="holder">the MessageResourceHolder
/// </param>
/// <returns> an appropriate ISession fetched from the holder,
/// or <code>null</code> if none found
/// </returns>
protected virtual ISession GetSession(NmsResourceHolder holder)
{
return holder.GetSession();
}
/// <summary> Fetch an appropriate Connection from the given MessageResourceHolder.
/// </summary>
/// <param name="holder">the MessageResourceHolder
/// </param>
/// <returns> an appropriate IConnection fetched from the holder,
/// or <code>null</code> if none found
/// </returns>
protected virtual IConnection GetConnection(NmsResourceHolder holder)
{
return holder.GetConnection();
}
public virtual ISession GetSession(NmsResourceHolder holder)
{
return EnclosingInstance.GetSession(holder);
}
public virtual IConnection GetConnection(NmsResourceHolder holder)
{
return EnclosingInstance.GetConnection(holder);
}
public NmsResourceSynchronization(NmsResourceHolder resourceHolder, object resourceKey, bool transacted)
{
this.resourceKey = resourceKey;
this.resourceHolder = resourceHolder;
this.transacted = transacted;
}
public virtual IConnection GetConnection(NmsResourceHolder holder)
{
return(existingCon != null ? existingCon : holder.GetConnection());
}
public virtual ISession GetSession(NmsResourceHolder holder)
{
return(holder.GetSession(typeof(ISession), existingCon));
}
/// <summary>
/// Obtain a NMS Session that is synchronized with the current transaction, if any.
/// </summary>
/// <param name="resourceKey">the TransactionSynchronizationManager key to bind to
/// (usually the ConnectionFactory)</param>
/// <param name="resourceFactory">the ResourceFactory to use for extracting or creating
/// NMS resources</param>
/// <param name="startConnection">whether the underlying Connection approach should be
/// started in order to allow for receiving messages. Note that a reused Connection
/// may already have been started before, even if this flag is <code>false</code>.</param>
/// <returns>
/// the transactional Session, or <code>null</code> if none found
/// </returns>
/// <throws>NMSException in case of NMS failure </throws>
public static ISession DoGetTransactionalSession(Object resourceKey, ResourceFactory resourceFactory, bool startConnection)
{
AssertUtils.ArgumentNotNull(resourceKey, "Resource key must not be null");
AssertUtils.ArgumentNotNull(resourceKey, "ResourceFactory must not be null");
NmsResourceHolder resourceHolder =
(NmsResourceHolder)TransactionSynchronizationManager.GetResource(resourceKey);
if (resourceHolder != null)
{
ISession rhSession = resourceFactory.GetSession(resourceHolder);
if (rhSession != null)
{
if (startConnection)
{
IConnection conn = resourceFactory.GetConnection(resourceHolder);
if (conn != null)
{
conn.Start();
}
}
return(rhSession);
}
}
if (!TransactionSynchronizationManager.SynchronizationActive)
{
return(null);
}
NmsResourceHolder resourceHolderToUse = resourceHolder;
if (resourceHolderToUse == null)
{
resourceHolderToUse = new NmsResourceHolder();
}
IConnection con = resourceFactory.GetConnection(resourceHolderToUse);
ISession session = null;
try
{
bool isExistingCon = (con != null);
if (!isExistingCon)
{
con = resourceFactory.CreateConnection();
resourceHolderToUse.AddConnection(con);
}
session = resourceFactory.CreateSession(con);
resourceHolderToUse.AddSession(session, con);
if (startConnection)
{
con.Start();
}
}
catch (NMSException)
{
if (session != null)
{
try
{
session.Close();
}
catch (Exception)
{
// ignore
}
}
if (con != null)
{
try
{
con.Close();
}
catch (Exception)
{
// ignore
}
}
throw;
}
if (resourceHolderToUse != resourceHolder)
{
TransactionSynchronizationManager.RegisterSynchronization(
new NmsResourceSynchronization(resourceHolderToUse, resourceKey,
resourceFactory.SynchedLocalTransactionAllowed));
resourceHolderToUse.SynchronizedWithTransaction = true;
TransactionSynchronizationManager.BindResource(resourceKey, resourceHolderToUse);
}
return(session);
}
