org.springframework.messaging.support

Class AbstractMessageChannel

java.lang.Object

org.springframework.messaging.support.AbstractMessageChannel

All Implemented Interfaces:

Aware, BeanNameAware, MessageChannel, InterceptableChannel

Direct Known Subclasses:

AbstractSubscribableChannel

public abstract class AbstractMessageChannel
extends Object
implements MessageChannel, BeanNameAware, InterceptableChannel

Abstract base class for MessageChannel implementations.

Since:

4.0

Author:

Rossen Stoyanchev

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	AbstractMessageChannel.ChannelInterceptorChain Assists with the invocation of the configured channel interceptors.

Field Summary

Fields

Modifier and Type	Field and Description
protected Log	logger

Fields inherited from interface org.springframework.messaging.MessageChannel

INDEFINITE_TIMEOUT

Constructor Summary

Constructors

Constructor and Description
AbstractMessageChannel()

Method Summary

Modifier and Type	Method and Description
void	addInterceptor(ChannelInterceptor interceptor) Add a channel interceptor to the end of the list.
void	addInterceptor(int index, ChannelInterceptor interceptor) Add a channel interceptor at the specified index.
String	getBeanName()
List<ChannelInterceptor>	getInterceptors() Return the list of configured interceptors.
boolean	removeInterceptor(ChannelInterceptor interceptor) Remove the given interceptor.
ChannelInterceptor	removeInterceptor(int index) Remove the interceptor at the given index.
boolean	send(Message<?> message) Send a Message to this channel.
boolean	send(Message<?> message, long timeout) Send a message, blocking until either the message is accepted or the specified timeout period elapses.
protected abstract boolean	sendInternal(Message<?> message, long timeout)
void	setBeanName(String name) Set the name of the bean in the bean factory that created this bean.
void	setInterceptors(List<ChannelInterceptor> interceptors) Set the list of channel interceptors clearing any existing interceptors.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final Log logger

Constructor Detail

AbstractMessageChannel

public AbstractMessageChannel()

Method Detail

setBeanName

public void setBeanName(String name)

Set the name of the bean in the bean factory that created this bean.

Invoked after population of normal bean properties but before an init callback such as InitializingBean.afterPropertiesSet() or a custom init-method.

Used primarily for logging purposes.

Specified by:

setBeanName in interface BeanNameAware

Parameters:

name - the name of the bean in the factory. Note that this name is the actual bean name used in the factory, which may differ from the originally specified name: in particular for inner bean names, the actual bean name might have been made unique through appending "#..." suffixes. Use the BeanFactoryUtils.originalBeanName(String) method to extract the original bean name (without suffix), if desired.

getBeanName

public String getBeanName()

Returns:

the name for this channel.

setInterceptors

public void setInterceptors(List<ChannelInterceptor> interceptors)

Description copied from interface: InterceptableChannel

Set the list of channel interceptors clearing any existing interceptors.

Specified by:

setInterceptors in interface InterceptableChannel

addInterceptor

public void addInterceptor(ChannelInterceptor interceptor)

Description copied from interface: InterceptableChannel

Add a channel interceptor to the end of the list.

Specified by:

addInterceptor in interface InterceptableChannel

addInterceptor

public void addInterceptor(int index,
                           ChannelInterceptor interceptor)

Description copied from interface: InterceptableChannel

Add a channel interceptor at the specified index.

Specified by:

addInterceptor in interface InterceptableChannel

getInterceptors

public List<ChannelInterceptor> getInterceptors()

Return the list of configured interceptors.

The returned list is read-only.

Specified by:

getInterceptors in interface InterceptableChannel

removeInterceptor

public boolean removeInterceptor(ChannelInterceptor interceptor)

Description copied from interface: InterceptableChannel

Remove the given interceptor.

Specified by:

removeInterceptor in interface InterceptableChannel

removeInterceptor

public ChannelInterceptor removeInterceptor(int index)

Description copied from interface: InterceptableChannel

Remove the interceptor at the given index.

Specified by:

removeInterceptor in interface InterceptableChannel

send

public final boolean send(Message<?> message)

Description copied from interface: MessageChannel

Send a Message to this channel. If the message is sent successfully, the method returns true. If the message cannot be sent due to a non-fatal reason, the method returns false. The method may also throw a RuntimeException in case of non-recoverable errors.

This method may block indefinitely, depending on the implementation. To provide a maximum wait time, use MessageChannel.send(Message, long).

Specified by:

send in interface MessageChannel

Parameters:

message - the message to send

Returns:

whether or not the message was sent

send

public final boolean send(Message<?> message,
                          long timeout)

Description copied from interface: MessageChannel

Send a message, blocking until either the message is accepted or the specified timeout period elapses.

Specified by:

send in interface MessageChannel

Parameters:

message - the message to send

timeout - the timeout in milliseconds or MessageChannel.INDEFINITE_TIMEOUT

Returns:

true if the message is sent, false if not including a timeout of an interrupt of the send

sendInternal

protected abstract boolean sendInternal(Message<?> message,
                                        long timeout)

toString

public String toString()

Overrides:

toString in class Object