org.apache.camel.cdi.transaction

Class TransactionErrorHandler

java.lang.Object

org.apache.camel.support.ServiceSupport

org.apache.camel.support.ChildServiceSupport

org.apache.camel.processor.ErrorHandlerSupport

org.apache.camel.cdi.transaction.TransactionErrorHandler

All Implemented Interfaces:

org.apache.camel.AsyncProcessor, org.apache.camel.Navigate<org.apache.camel.Processor>, org.apache.camel.Processor, org.apache.camel.processor.ErrorHandler, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.spi.ShutdownPrepared, org.apache.camel.StatefulService, org.apache.camel.SuspendableService

public class TransactionErrorHandler
extends org.apache.camel.processor.ErrorHandlerSupport
implements org.apache.camel.AsyncProcessor, org.apache.camel.spi.ShutdownPrepared, org.apache.camel.Navigate<org.apache.camel.Processor>

Does transactional execution according given policy. This class is based on org.apache.camel.spring.spi.TransactionErrorHandler excluding redelivery functionality. In the Spring implementation redelivering is done within the transaction which is not appropriate in JTA since every error breaks the current transaction.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.camel.Processor	output
protected boolean	preparingShutdown

Fields inherited from class org.apache.camel.processor.ErrorHandlerSupport

exceptionPolicies, log

Fields inherited from class org.apache.camel.support.ServiceSupport

shutdown, shuttingdown, started, starting, stopped, stopping, suspended, suspending

Constructor Summary

Constructors

Constructor and Description
TransactionErrorHandler(org.apache.camel.CamelContext camelContext, org.apache.camel.Processor output, org.apache.camel.processor.exceptionpolicy.ExceptionPolicyStrategy exceptionPolicyStrategy, JtaTransactionPolicy transactionPolicy, ScheduledExecutorService executorService, org.apache.camel.LoggingLevel rollbackLoggingLevel) Creates the transaction error handler.

Method Summary

Modifier and Type	Method and Description
protected void	doInTransactionTemplate(org.apache.camel.Exchange exchange)
protected void	doShutdown()
protected void	doStart()
protected void	doStop()
org.apache.camel.processor.exceptionpolicy.ExceptionPolicyStrategy	getExceptionPolicy()
org.apache.camel.Processor	getOutput()
boolean	hasNext()
List<org.apache.camel.Processor>	next()
void	prepareShutdown(boolean suspendOnly, boolean forced)
void	process(org.apache.camel.Exchange exchange)
boolean	process(org.apache.camel.Exchange exchange, org.apache.camel.AsyncCallback callback)
protected void	processByErrorHandler(org.apache.camel.Exchange exchange) Processes the Exchange using the error handler.
protected void	processInTransaction(org.apache.camel.Exchange exchange)
void	setExceptionPolicy(org.apache.camel.processor.exceptionpolicy.ExceptionPolicyStrategy exceptionPolicy)
void	setTransactionPolicy(JtaTransactionPolicy transactionPolicy)
boolean	supportTransacted()

Methods inherited from class org.apache.camel.processor.ErrorHandlerSupport

addExceptionPolicy, createDefaultExceptionPolicyStrategy, createExceptionClasses, getExceptionPolicy, isDeadLetterChannel

Methods inherited from class org.apache.camel.support.ChildServiceSupport

addChildService, removeChildService, shutdown, start, start, stop

Methods inherited from class org.apache.camel.support.ServiceSupport

doResume, doSuspend, getStatus, getVersion, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, isSuspendingOrSuspended, resume, suspend

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

output

protected final org.apache.camel.Processor output

preparingShutdown

protected volatile boolean preparingShutdown

Constructor Detail

TransactionErrorHandler

public TransactionErrorHandler(org.apache.camel.CamelContext camelContext,
                               org.apache.camel.Processor output,
                               org.apache.camel.processor.exceptionpolicy.ExceptionPolicyStrategy exceptionPolicyStrategy,
                               JtaTransactionPolicy transactionPolicy,
                               ScheduledExecutorService executorService,
                               org.apache.camel.LoggingLevel rollbackLoggingLevel)

Creates the transaction error handler.

Parameters:

camelContext - the camel context

output - outer processor that should use this default error handler

exceptionPolicyStrategy - strategy for onException handling

transactionPolicy - the transaction policy

executorService - the ScheduledExecutorService to be used for redelivery thread pool. Can be null.

rollbackLoggingLevel - logging level to use for logging transaction rollback occurred

Method Detail

process

public void process(org.apache.camel.Exchange exchange)
             throws Exception

Specified by:

process in interface org.apache.camel.Processor

Throws:

Exception

process

public boolean process(org.apache.camel.Exchange exchange,
                       org.apache.camel.AsyncCallback callback)

Specified by:

process in interface org.apache.camel.AsyncProcessor

processInTransaction

protected void processInTransaction(org.apache.camel.Exchange exchange)
                             throws Exception

Throws:

Exception

setTransactionPolicy

public void setTransactionPolicy(JtaTransactionPolicy transactionPolicy)

doInTransactionTemplate

protected void doInTransactionTemplate(org.apache.camel.Exchange exchange)
                                throws Throwable

Throws:

Throwable

processByErrorHandler

protected void processByErrorHandler(org.apache.camel.Exchange exchange)

Processes the Exchange using the error handler.

This implementation will invoke ensure this occurs synchronously, that means if the async routing engine did kick in, then this implementation will wait for the task to complete before it continues.

Parameters:

exchange - the exchange

setExceptionPolicy

public void setExceptionPolicy(org.apache.camel.processor.exceptionpolicy.ExceptionPolicyStrategy exceptionPolicy)

Overrides:

setExceptionPolicy in class org.apache.camel.processor.ErrorHandlerSupport

getExceptionPolicy

public org.apache.camel.processor.exceptionpolicy.ExceptionPolicyStrategy getExceptionPolicy()

getOutput

public org.apache.camel.Processor getOutput()

Specified by:

getOutput in class org.apache.camel.processor.ErrorHandlerSupport

doStart

protected void doStart()
                throws Exception

Specified by:

doStart in class org.apache.camel.support.ServiceSupport

Throws:

Exception

doStop

protected void doStop()
               throws Exception

Specified by:

doStop in class org.apache.camel.support.ServiceSupport

Throws:

Exception

doShutdown

protected void doShutdown()
                   throws Exception

Overrides:

doShutdown in class org.apache.camel.support.ServiceSupport

Throws:

Exception

supportTransacted

public boolean supportTransacted()

Specified by:

supportTransacted in class org.apache.camel.processor.ErrorHandlerSupport

hasNext

public boolean hasNext()

Specified by:

hasNext in interface org.apache.camel.Navigate<org.apache.camel.Processor>

next

public List<org.apache.camel.Processor> next()

Specified by:

next in interface org.apache.camel.Navigate<org.apache.camel.Processor>

prepareShutdown

public void prepareShutdown(boolean suspendOnly,
                            boolean forced)

Specified by:

prepareShutdown in interface org.apache.camel.spi.ShutdownPrepared