Java TransactionSynchronizationManager類代碼示例

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
private void handleComposeMessageCreateCommand(final Object obj) throws IOException {
  final ComposeMessageCreateCommand cmd = (ComposeMessageCreateCommand) obj;
  final Message message = new MessageBuilder().transferId(cmd.getTransferId())
      .messageState(MessageState.TO_COMPOSE).build();


  message.setInternalData(InternalDataUtils.convertInternalDataToJson(cmd.getData()));

  final BasicOutboundConfiguration configuration =
      basicConfigurationRepository.findOne(cmd.getConfigId());
  message.setOutboundConfiguration(configuration);

  messageRepository.save((MessageImpl) message);
  final String actorId = getContext().parent().path().name();
  TransactionSynchronizationManager
      .registerSynchronization(new TransactionSynchronizationAdapter() {
        @Override
        public void afterCommit() {
          LOG.info("Saved new [{}]", message);
          getSender().tell(new ComposeMessageCreatedEvent(actorId, message.getId()), getSelf());
          stop();
        }
      });
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
@Override
public void afterCompletion(WebRequest request, Exception ex) throws DataAccessException {
	String participateAttributeName = getParticipateAttributeName();
	Integer count = (Integer) request.getAttribute(participateAttributeName, WebRequest.SCOPE_REQUEST);
	if (count != null) {
		// Do not modify the PersistenceManager: just clear the marker.
		if (count > 1) {
			request.setAttribute(participateAttributeName, count - 1, WebRequest.SCOPE_REQUEST);
		}
		else {
			request.removeAttribute(participateAttributeName, WebRequest.SCOPE_REQUEST);
		}
	}
	else {
		PersistenceManagerHolder pmHolder = (PersistenceManagerHolder)
				TransactionSynchronizationManager.unbindResource(getPersistenceManagerFactory());
		logger.debug("Closing JDO PersistenceManager in OpenPersistenceManagerInViewInterceptor");
		PersistenceManagerFactoryUtils.releasePersistenceManager(
				pmHolder.getPersistenceManager(), getPersistenceManagerFactory());
	}
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
/**
 * <strong>此方法僅限與bdf2-core模塊配合使用,且隻能用於不加事務的方法當中，如果當前方法或當前方便的調用方法需要用到事務，
 * 一定不能使用該方法，否則事務將不起作用</strong><br>
 * 此方法返回當前線程當中指定的數據源對應的Session,如線程中未指定，則返回默認的Session,<br>
 * 注意此方法返回的Session對象我們在使用完畢之後，無需將其close，<br>
 * 在線程執行完畢時，BDF會自動將此方法產生的Session對象進行close處理；同時，此方法僅限在標準的WEB請求調用時使用，<br>
 * 如果在後台的JOB中調用此方法可能會有異常拋出
 * 
 * @return 返回一個標準的Hibernate Session對象
 */
public Session getSession() {
	String dsName = sessionFactoryRepository.getDefaultSessionFactoryName();
	dsName = this.getDataSourceName(dsName);
	if (StringUtils.isEmpty(TransactionSynchronizationManager.getCurrentTransactionName())) {
		Map<String, Session> map = ContextHolder.getHibernateSessionMap();
		if (map == null) {
			throw new RuntimeException("This method can only used in bdf2-core module");
		}
		if (map.containsKey(dsName) && map.get(dsName).isOpen()) {
			return map.get(dsName);
		} else {
			if (map.containsKey(dsName)) {
				map.remove(dsName);
			}
			Session session = getSessionFactory().openSession();
			map.put(dsName, session);
			return session;
		}
	} else {
		return this.getSessionFactory(dsName).getCurrentSession();
	}
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
public boolean startNewThread(ActivityRunner runner) {
    boolean wasStarted = false;
    if (isStarted()) {
        synchronized (runningActivities) {
            Assert.isFalse(runningActivities.contains(runner.getActivityId()), "Error");
            runningActivities.add(runner.getActivityId());
            connectionCapManager.add(runner.getActivityName(), runner.getActivityId());

            // TX Synchro
            try {
                final ThreadStarterSynchronization synchro = new ThreadStarterSynchronization(runner);
                TransactionSynchronizationManager.registerSynchronization(synchro);
                wasStarted = true;
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
        if (runner.isTopActivity()) {
            synchronized (runningTopActivities) {
                runningTopActivities.add(runner.getActivityId());
            }
        }
    }
    return wasStarted;
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
@Override
public Object intercept(Invocation invocation) throws Throwable {

    boolean synchronizationActive = TransactionSynchronizationManager.isSynchronizationActive();
    //如果沒有事務
    if (!synchronizationActive) {
        Object[] objects = invocation.getArgs();
        MappedStatement ms = (MappedStatement) objects[0];

        DynamicDataSourceGlobal dynamicDataSourceGlobal;

        if ((dynamicDataSourceGlobal = CACHE_MAP.get(ms.getId())) == null) {
            dynamicDataSourceGlobal = getDynamicDataSource(ms, objects[1]);
            LOGGER.warn("設置方法[{}] use [{}] Strategy, SqlCommandType [{}]..", ms.getId(), dynamicDataSourceGlobal.name(), ms.getSqlCommandType().name());
            CACHE_MAP.put(ms.getId(), dynamicDataSourceGlobal);
        }
        DynamicDataSourceHolder.putDataSource(dynamicDataSourceGlobal);
    }

    return invocation.proceed();
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
/**
 * Get the transaction identifier used to store it in the transaction map.
 * 
 * @param tx Transaction
 * @param storeRef StoreRef
 * @return - the transaction id
 */
@SuppressWarnings("unchecked")
private String getTransactionId(Transaction tx, StoreRef storeRef)
{
    if (tx instanceof SimpleTransaction)
    {
        SimpleTransaction simpleTx = (SimpleTransaction) tx;
        return simpleTx.getGUID();
    }
    else if (TransactionSynchronizationManager.isSynchronizationActive())
    {
        Map<StoreRef, LuceneIndexer> indexers = (Map<StoreRef, LuceneIndexer>) AlfrescoTransactionSupport.getResource(indexersKey);
        if (indexers != null)
        {
            LuceneIndexer indexer = indexers.get(storeRef);
            if (indexer != null)
            {
                return indexer.getDeltaId();
            }
        }
    }
    return null;
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
@PostUpdate
@Async
public void postUpdate(Object object) {
    LOG.info("Listening to post update for object:" + object);
    // Entitys have to be annotated with @EventListeners and reference this class in that annotation, because of this
    // the usages of this class are not executed withing the handle of the Spring context. So now we have to use this funky
    // ass way of wiring in fields AS this method is being called. #sadface
    AutowireHelper.autowire(this);
    // Trying to just add @Transactional(Transactional.TxType.REQUIRES_NEW) to this method didn't work at all, it was just being ignored.
    // This wrapper is what ended up working.
    TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronizationAdapter() {
        @Override
        public void afterCompletion(int status) {
            super.afterCompletion(status);
            List<Webhook> hooks = webhookManager.retrieveWebhooksByEntityNameAndEventType(object.getClass().getSimpleName(), "post-update");
            hooks.stream().forEach(wh -> webhookProcessor.notifyWebhook(wh, object));
        }
    });

}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
/**
 * <strong>此方法僅限與bdf2-core模塊配合使用,且隻能用於不加事務的方法當中，如果當前方法或當前方便的調用方法需要用到事務，一定不能使用該方法，否則事務將不起作用</strong><br>
 * 此方法返回當前線程當中指定的數據源對應的Session,如線程中未指定，則返回默認的Session,<br>
 * 注意此方法返回的Session對象我們在使用完畢之後，無需將其close，<br>
 * 在線程執行完畢時，BDF會自動將此方法產生的Session對象進行close處理；同時，此方法僅限在標準的WEB請求調用時使用，<br>
 * 如果在後台的JOB中調用此方法可能會有異常拋出
 * @return 返回一個標準的Hibernate Session對象
 */
public Session getSession(){
	String dsName=sessionFactoryRepository.getDefaultSessionFactoryName();
	dsName=this.getDataSourceName(dsName);
	if(StringUtils.isEmpty(TransactionSynchronizationManager.getCurrentTransactionName())){
		Map<String,Session> map=ContextHolder.getHibernateSessionMap();
		if(map==null){
			throw new RuntimeException("This method can only used in bdf2-core module");
		}
		if(map.containsKey(dsName) && map.get(dsName).isOpen()){
			return map.get(dsName);				
		}else{
			if(map.containsKey(dsName)){
				map.remove(dsName);
			}
			Session session=getSessionFactory().openSession();
			map.put(dsName, session);
			return session;
		}
	}else{
		return this.getSessionFactory(dsName).getCurrentSession();
	}
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
/**
 * Unbind the Hibernate {@code Session} from the thread and close it (in
 * single session mode), or process deferred close for all sessions that have
 * been opened during the current request (in deferred close mode).
 * @see org.springframework.transaction.support.TransactionSynchronizationManager
 */
@Override
public void afterCompletion(WebRequest request, Exception ex) throws DataAccessException {
	if (!decrementParticipateCount(request)) {
		if (isSingleSession()) {
			// single session mode
			SessionHolder sessionHolder =
					(SessionHolder) TransactionSynchronizationManager.unbindResource(getSessionFactory());
			logger.debug("Closing single Hibernate Session in OpenSessionInViewInterceptor");
			SessionFactoryUtils.closeSession(sessionHolder.getSession());
		}
		else {
			// deferred close mode
			SessionFactoryUtils.processDeferredClose(getSessionFactory());
		}
	}
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
/**
 * Retrieves the primary key from {@code acl_class}, creating a new row if needed and the
 * {@code allowCreate} property is {@code true}.
 *
 * @param type to find or create an entry for (often the fully-qualified class name)
 * @param allowCreate true if creation is permitted if not found
 *
 * @return the primary key or null if not found
 */
protected AclClass createOrRetrieveClassPrimaryKey(String type, boolean allowCreate) {
    List<AclClass> classIds = aclDao.findAclClassList(type);

    if (!classIds.isEmpty()) {
        return classIds.get(0);
    }

    if (allowCreate) {
        AclClass clazz = new AclClass();
        clazz.setClazz(type);

        Assert.isTrue(TransactionSynchronizationManager.isSynchronizationActive(),
                "Transaction must be running");
        return aclDao.createAclClass(clazz);
    }

    return null;
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
@Override
public Object invoke(MethodInvocation invocation) throws Throwable {
	SessionFactory sf = getSessionFactory();
	if (!TransactionSynchronizationManager.hasResource(sf)) {
		// New Session to be bound for the current method's scope...
		Session session = openSession();
		try {
			TransactionSynchronizationManager.bindResource(sf, new SessionHolder(session));
			return invocation.proceed();
		}
		finally {
			SessionFactoryUtils.closeSession(session);
			TransactionSynchronizationManager.unbindResource(sf);
		}
	}
	else {
		// Pre-bound Session found -> simply proceed.
		return invocation.proceed();
	}
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
@Override
public void execute(final AssignUsersMessage.Request request) throws Exception {
  request.getUserAssignments().forEach(assignment -> {
    final Subject subject = subjectRepository
        .getSubjectForSubjectModelInProcess(request.getPiId(), assignment.getSmId());
    if (subject != null) {
      subject.setUser(assignment.getUserId());
      subjectRepository.save((SubjectImpl) subject);
      LOG.info("New user for subject: {}", subject);
    }
  });

  final ActorRef sender = getSender();
  TransactionSynchronizationManager
      .registerSynchronization(new TransactionSynchronizationAdapter() {
        @Override
        public void afterCommit() {
          sender.tell(new AssignUsersMessage.Response(), getSelf());
        }
      });

}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
private void handleStoreExternalDataCommand(final Object obj) {
  final StoreExternalDataCommand cmd = (StoreExternalDataCommand) obj;
  final Message message = messageRepository.findOne(cmd.getId());
  message.setExternalData(cmd.getData());
  message.setMessageState(MessageState.COMPOSED);
  messageRepository.save((MessageImpl) message);
  final String actorId = getContext().parent().path().name();

  final ActorRef sender = getSender();
  TransactionSynchronizationManager
      .registerSynchronization(new TransactionSynchronizationAdapter() {
        @Override
        public void afterCommit() {
          LOG.info("Updated external data of [{}]", message);
          sender.tell(new ComposedMessageEvent(actorId, message.getId()), getSelf());
          stop();
        }
      });
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
@Override
public void afterCompletion(int status) {
	// If we haven't closed the Connection in beforeCompletion,
	// close it now. The holder might have been used for other
	// cleanup in the meantime, for example by a Hibernate Session.
	if (this.holderActive) {
		// The thread-bound ConnectionHolder might not be available anymore,
		// since afterCompletion might get called from a different thread.
		TransactionSynchronizationManager.unbindResourceIfPossible(this.dataSource);
		this.holderActive = false;
		if (this.connectionHolder.hasConnection()) {
			releaseConnection(this.connectionHolder.getConnection(), this.dataSource);
			// Reset the ConnectionHolder: It might remain bound to the thread.
			this.connectionHolder.setConnection(null);
		}
	}
	this.connectionHolder.reset();
}
 

import org.springframework.transaction.support.TransactionSynchronizationManager; //導入依賴的package包/類
/**
 * Actually obtain a CCI Connection from the given ConnectionFactory.
 * Same as {@link #getConnection}, but throwing the original ResourceException.
 * <p>Is aware of a corresponding Connection bound to the current thread, for example
 * when using {@link CciLocalTransactionManager}. Will bind a Connection to the thread
 * if transaction synchronization is active (e.g. if in a JTA transaction).
 * <p>Directly accessed by {@link TransactionAwareConnectionFactoryProxy}.
 * @param cf the ConnectionFactory to obtain Connection from
 * @return a CCI Connection from the given ConnectionFactory
 * @throws ResourceException if thrown by CCI API methods
 * @see #doReleaseConnection
 */
public static Connection doGetConnection(ConnectionFactory cf) throws ResourceException {
	Assert.notNull(cf, "No ConnectionFactory specified");

	ConnectionHolder conHolder = (ConnectionHolder) TransactionSynchronizationManager.getResource(cf);
	if (conHolder != null) {
		return conHolder.getConnection();
	}

	logger.debug("Opening CCI Connection");
	Connection con = cf.getConnection();

	if (TransactionSynchronizationManager.isSynchronizationActive()) {
		logger.debug("Registering transaction synchronization for CCI Connection");
		conHolder = new ConnectionHolder(con);
		conHolder.setSynchronizedWithTransaction(true);
		TransactionSynchronizationManager.registerSynchronization(new ConnectionSynchronization(conHolder, cf));
		TransactionSynchronizationManager.bindResource(cf, conHolder);
	}

	return con;
}