org.apache.activemq.artemis.core.remoting.impl.netty

Class NettyConnection

java.lang.Object

org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnection

All Implemented Interfaces:

Connection

Direct Known Subclasses:

NettyServerConnection

public class NettyConnection
extends Object
implements Connection

Field Summary

Fields

Modifier and Type	Field and Description
protected io.netty.channel.Channel	channel

Constructor Summary

Constructors

Constructor and Description
NettyConnection(Map<String,Object> configuration, io.netty.channel.Channel channel, BaseConnectionLifeCycleListener<?> listener, boolean batchingEnabled, boolean directDeliver)

Method Summary

Modifier and Type	Method and Description
boolean	blockUntilWritable(int requiredCapacity, long timeout, TimeUnit timeUnit) Causes the current thread to wait until the connection can enqueue the required capacity unless the specified waiting time elapses.
void	checkFlushBatchBuffer() Called periodically to flush any data in the batch buffer
void	close() Closes the connection.
ActiveMQBuffer	createTransportBuffer(int size) Create a new ActiveMQBuffer of the given size.
void	fireReady(boolean ready)
void	forceClose() This should close the internal channel without calling any listeners.
io.netty.channel.Channel	getChannel() This is exposed so users would have the option to look at any data through interceptors
TransportConfiguration	getConnectorConfig() Generates a TransportConfiguration to be used to connect to the same target this is connected to.
ActiveMQPrincipal	getDefaultActiveMQPrincipal()
Object	getID() returns the unique id of this wire.
String	getLocalAddress() Returns a string representation of the local address this connection is connected to.
io.netty.channel.Channel	getNettyChannel()
RemotingConnection	getProtocolConnection()
String	getRemoteAddress() Returns a string representation of the remote address this connection is connected to.
boolean	isDirectDeliver()
boolean	isOpen()
boolean	isSameTarget(TransportConfiguration... configs)
boolean	isUsingProtocolHandling() the InVM Connection has some special handling as it doesn't use Netty ProtocolChannel we will use this method Instead of using instanceof
boolean	isWritable(ReadyListener callback)
int	pendingWritesOnChannel()
void	setAutoRead(boolean autoRead) This will disable reading from the channel.
void	setProtocolConnection(RemotingConnection protocolConnection)
String	toString()
void	write(ActiveMQBuffer buffer) writes the buffer to the connection with no flushing or batching
void	write(ActiveMQBuffer buffer, boolean requestFlush) writes the buffer to the connection and if flush is true request to flush the buffer (and any previous un-flushed ones) into the wire.
void	write(ActiveMQBuffer buffer, boolean flush, boolean batched) writes the buffer to the connection and if flush is true returns only when the buffer has been physically written to the connection.
void	write(ActiveMQBuffer buffer, boolean flush, boolean batched, io.netty.channel.ChannelFutureListener futureListener) writes the buffer to the connection and if flush is true returns only when the buffer has been physically written to the connection.

Methods inherited from class java.lang.Object

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

Field Detail

channel

protected final io.netty.channel.Channel channel

Constructor Detail

NettyConnection

public NettyConnection(Map<String,Object> configuration,
                       io.netty.channel.Channel channel,
                       BaseConnectionLifeCycleListener<?> listener,
                       boolean batchingEnabled,
                       boolean directDeliver)

Method Detail

pendingWritesOnChannel

public final int pendingWritesOnChannel()

getNettyChannel

public final io.netty.channel.Channel getNettyChannel()

setAutoRead

public final void setAutoRead(boolean autoRead)

Description copied from interface: Connection

This will disable reading from the channel. This is basically the same as blocking the reading.

Specified by:

setAutoRead in interface Connection

isWritable

public final boolean isWritable(ReadyListener callback)

Specified by:

isWritable in interface Connection

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Connection

fireReady

public final void fireReady(boolean ready)

Specified by:

fireReady in interface Connection

forceClose

public final void forceClose()

Description copied from interface: Connection

This should close the internal channel without calling any listeners. This is to avoid a situation where the broker is busy writing on an internal thread. This should close the socket releasing any pending threads.

Specified by:

forceClose in interface Connection

getChannel

public final io.netty.channel.Channel getChannel()

This is exposed so users would have the option to look at any data through interceptors

Returns:

getProtocolConnection

public final RemotingConnection getProtocolConnection()

Specified by:

getProtocolConnection in interface Connection

setProtocolConnection

public final void setProtocolConnection(RemotingConnection protocolConnection)

Specified by:

setProtocolConnection in interface Connection

close

public final void close()

Description copied from interface: Connection

Closes the connection.

Specified by:

close in interface Connection

createTransportBuffer

public ActiveMQBuffer createTransportBuffer(int size)

Description copied from interface: Connection

Create a new ActiveMQBuffer of the given size.

Specified by:

createTransportBuffer in interface Connection

Parameters:

size - the size of buffer to create

Returns:

the new buffer.

getID

public final Object getID()

Description copied from interface: Connection

returns the unique id of this wire.

Specified by:

getID in interface Connection

Returns:

the id

checkFlushBatchBuffer

public final void checkFlushBatchBuffer()

Description copied from interface: Connection

Called periodically to flush any data in the batch buffer

Specified by:

checkFlushBatchBuffer in interface Connection

write

public final void write(ActiveMQBuffer buffer)

Description copied from interface: Connection

writes the buffer to the connection with no flushing or batching

Specified by:

write in interface Connection

Parameters:

buffer - the buffer to write

write

public void write(ActiveMQBuffer buffer,
                  boolean requestFlush)

Description copied from interface: Connection

writes the buffer to the connection and if flush is true request to flush the buffer (and any previous un-flushed ones) into the wire.

Specified by:

write in interface Connection

Parameters:

buffer - the buffer to write

requestFlush - whether to request flush onto the wire

write

public final void write(ActiveMQBuffer buffer,
                        boolean flush,
                        boolean batched)

Description copied from interface: Connection

writes the buffer to the connection and if flush is true returns only when the buffer has been physically written to the connection.

Specified by:

write in interface Connection

Parameters:

buffer - the buffer to write

flush - whether to flush the buffers onto the wire

batched - whether the packet is allowed to batched for better performance

blockUntilWritable

public final boolean blockUntilWritable(int requiredCapacity,
                                        long timeout,
                                        TimeUnit timeUnit)

Description copied from interface: Connection

Causes the current thread to wait until the connection can enqueue the required capacity unless the specified waiting time elapses. The available capacity of the connection could change concurrently hence this method is suitable to perform precise flow-control only in a single writer case, while its precision decrease inversely proportional with the rate and the number of concurrent writers. If the current thread is not allowed to block the timeout will be ignored dependently on the connection type.

Specified by:

blockUntilWritable in interface Connection

Parameters:

requiredCapacity - the capacity in bytes to be enqueued

timeout - the maximum time to wait

timeUnit - the time unit of the timeout argument

Returns:

true if the connection can enqueue requiredCapacity bytes, false otherwise

write

public final void write(ActiveMQBuffer buffer,
                        boolean flush,
                        boolean batched,
                        io.netty.channel.ChannelFutureListener futureListener)

Description copied from interface: Connection

writes the buffer to the connection and if flush is true returns only when the buffer has been physically written to the connection.

Specified by:

write in interface Connection

Parameters:

buffer - the buffer to write

flush - whether to flush the buffers onto the wire

batched - whether the packet is allowed to batched for better performance

getRemoteAddress

public final String getRemoteAddress()

Description copied from interface: Connection

Returns a string representation of the remote address this connection is connected to.

Specified by:

getRemoteAddress in interface Connection

Returns:

the remote address

getLocalAddress

public final String getLocalAddress()

Description copied from interface: Connection

Returns a string representation of the local address this connection is connected to. This is useful when the server is configured at 0.0.0.0 (or multiple IPs). This will give you the actual IP that's being used.

Specified by:

getLocalAddress in interface Connection

Returns:

the local address

isDirectDeliver

public final boolean isDirectDeliver()

Specified by:

isDirectDeliver in interface Connection

getDefaultActiveMQPrincipal

public final ActiveMQPrincipal getDefaultActiveMQPrincipal()

Specified by:

getDefaultActiveMQPrincipal in interface Connection

getConnectorConfig

public final TransportConfiguration getConnectorConfig()

Description copied from interface: Connection

Generates a TransportConfiguration to be used to connect to the same target this is connected to.

Specified by:

getConnectorConfig in interface Connection

Returns:

TransportConfiguration

isUsingProtocolHandling

public final boolean isUsingProtocolHandling()

Description copied from interface: Connection

the InVM Connection has some special handling as it doesn't use Netty ProtocolChannel we will use this method Instead of using instanceof

Specified by:

isUsingProtocolHandling in interface Connection

Returns:

isSameTarget

public boolean isSameTarget(TransportConfiguration... configs)

Specified by:

isSameTarget in interface Connection

toString

public final String toString()

Overrides:

toString in class Object