public abstract class AbstractBrokerMessageHandler extends Object implements MessageHandler, org.springframework.context.SmartLifecycle, org.springframework.context.ApplicationEventPublisherAware
MessageHandler
that broker messages to
registered subscribers.Constructor and Description |
---|
AbstractBrokerMessageHandler() |
AbstractBrokerMessageHandler(Collection<String> destinationPrefixes) |
Modifier and Type | Method and Description |
---|---|
protected boolean |
checkDestinationPrefix(String destination) |
org.springframework.context.ApplicationEventPublisher |
getApplicationEventPublisher() |
Collection<String> |
getDestinationPrefixes() |
int |
getPhase() |
void |
handleMessage(Message<?> message)
Handle the given message.
|
protected abstract void |
handleMessageInternal(Message<?> message) |
boolean |
isAutoStartup() |
boolean |
isBrokerAvailable()
Whether the message broker is currently available and able to process messages.
|
boolean |
isRunning()
Check whether this message handler is currently running.
|
protected void |
publishBrokerAvailableEvent() |
protected void |
publishBrokerUnavailableEvent() |
void |
setApplicationEventPublisher(org.springframework.context.ApplicationEventPublisher publisher) |
void |
setAutoStartup(boolean autoStartup) |
void |
start() |
protected void |
startInternal() |
void |
stop() |
void |
stop(Runnable callback) |
protected void |
stopInternal() |
protected final Log logger
public AbstractBrokerMessageHandler()
public AbstractBrokerMessageHandler(Collection<String> destinationPrefixes)
public Collection<String> getDestinationPrefixes()
public void setApplicationEventPublisher(org.springframework.context.ApplicationEventPublisher publisher)
setApplicationEventPublisher
in interface org.springframework.context.ApplicationEventPublisherAware
public org.springframework.context.ApplicationEventPublisher getApplicationEventPublisher()
public void setAutoStartup(boolean autoStartup)
public boolean isAutoStartup()
isAutoStartup
in interface org.springframework.context.SmartLifecycle
public int getPhase()
getPhase
in interface org.springframework.context.Phased
public final boolean isRunning()
Note that even when this message handler is running the
isBrokerAvailable()
flag may still independently alternate between
being on and off depending on the concrete sub-class implementation.
isRunning
in interface org.springframework.context.Lifecycle
public boolean isBrokerAvailable()
Note that this is in addition to the isRunning()
flag, which
indicates whether this message handler is running. In other words the message
handler must first be running and then the isBrokerAvailable()
flag
may still independently alternate between being on and off depending on the
concrete sub-class implementation.
Application components may implement
org.springframework.context.ApplicationListener
to receive notifications when broker becomes available and unavailable.
public final void start()
start
in interface org.springframework.context.Lifecycle
protected void startInternal()
public final void stop()
stop
in interface org.springframework.context.Lifecycle
protected void stopInternal()
public final void stop(Runnable callback)
stop
in interface org.springframework.context.SmartLifecycle
public final void handleMessage(Message<?> message)
MessageHandler
handleMessage
in interface MessageHandler
message
- the message to be handledprotected abstract void handleMessageInternal(Message<?> message)
protected boolean checkDestinationPrefix(String destination)
protected void publishBrokerAvailableEvent()
protected void publishBrokerUnavailableEvent()