org.opendaylight.openflowjava.protocol.impl.core.connection

Class ConnectionAdapterImpl

java.lang.Object

org.opendaylight.openflowjava.protocol.impl.core.connection.ConnectionAdapterImpl

All Implemented Interfaces:

ConnectionAdapter, ConnectionFacade, MessageConsumer, OpenflowProtocolService, org.opendaylight.yangtools.yang.binding.RpcService

public class ConnectionAdapterImpl
extends Object
implements ConnectionFacade

Handles messages (notifications + rpcs) and connections.

Author:

mirehak, michal.polkorab

Field Summary

Fields

Modifier and Type	Field and Description
protected InetSocketAddress	address
protected io.netty.channel.Channel	channel
protected boolean	disconnectOccured
protected org.opendaylight.openflowjava.protocol.impl.core.connection.ChannelOutboundQueue	output
protected static com.google.common.cache.RemovalListener<RpcResponseKey,org.opendaylight.openflowjava.protocol.impl.core.connection.ResponseExpectedRpcListener<?>>	REMOVAL_LISTENER
protected com.google.common.cache.Cache<RpcResponseKey,org.opendaylight.openflowjava.protocol.impl.core.connection.ResponseExpectedRpcListener<?>>	responseCache expiring cache for future rpcResponses.

Constructor Summary

Constructors

Constructor and Description
ConnectionAdapterImpl(io.netty.channel.Channel channel, InetSocketAddress address, boolean useBarrier, int channelOutboundQueueSize) Default constructor.

Method Summary

Modifier and Type	Method and Description
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<BarrierOutput>>	barrier(BarrierInput input)
void	checkListeners() Throws exception if any of required listeners is missing.
void	consume(org.opendaylight.yangtools.yang.binding.DataObject message) Invoked to consume a message.
void	consumeDeviceMessage(org.opendaylight.yangtools.yang.binding.DataObject message) Method is equivalent to MessageConsumer.consume(DataObject) to prevent missing method in every children of AbstractConnectionAdapterStatistics class, because we overriding original method for StatisticsCounters.
Future<Boolean>	disconnect() Disconnect corresponding switch.
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<EchoOutput>>	echo(EchoInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<EchoReplyOutput>>	echoReply(EchoReplyInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<ExperimenterOutput>>	experimenter(ExperimenterInput input) Send experimenter message to device, reply is not solicitated.
protected org.opendaylight.openflowjava.protocol.impl.core.connection.ResponseExpectedRpcListener<?>	findRpcResponse(RpcResponseKey key) Return cached RpcListener or null if not cached.
void	fireConnectionReadyNotification() Notify listener about connection ready-to-use event.
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<FlowModOutput>>	flowMod(FlowModInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GetAsyncOutput>>	getAsync(GetAsyncInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GetConfigOutput>>	getConfig(GetConfigInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GetFeaturesOutput>>	getFeatures(GetFeaturesInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GetQueueConfigOutput>>	getQueueConfig(GetQueueConfigInput input)
InetSocketAddress	getRemoteAddress() Returns the address of the connected switch.
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GroupModOutput>>	groupMod(GroupModInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<HelloOutput>>	hello(HelloInput input)
boolean	isAlive() Determines if the connection to the switch is alive.
boolean	isAutoRead() Determines if the channel is configured to auto-read.
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<MeterModOutput>>	meterMod(MeterModInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<MultipartRequestOutput>>	multipartRequest(MultipartRequestInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<PacketOutOutput>>	packetOut(PacketOutInput input)
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<PortModOutput>>	portMod(PortModInput input)
<T extends OutboundQueueHandler> OutboundQueueHandlerRegistration<T>	registerOutboundQueueHandler(T handler, int maxQueueDepth, long maxBarrierNanos) Registers a new bypass outbound queue.
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<RoleRequestOutput>>	roleRequest(RoleRequestInput input)
protected <I extends OfHeader,O extends OfHeader> com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<O>>	sendToSwitchExpectRpcResultFuture(I input, Class<O> responseClazz, String failureInfo) Sends given message to switch, sending result or switch response will be reported via return value.
protected <O extends org.opendaylight.yangtools.yang.binding.DataObject> com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<O>>	sendToSwitchFuture(Object input, String failureInfo) Sends given message to switch, sending result will be reported via return value.
void	setAlienMessageListener(AlienMessageListener alienMessageListener) Set handler for alien messages received from device.
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<SetAsyncOutput>>	setAsync(SetAsyncInput input)
void	setAutoRead(boolean autoRead) Sets option for automatic channel reading - if set to false, incoming messages won't be read.
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<SetConfigOutput>>	setConfig(SetConfigInput input)
void	setConnectionReadyListener(ConnectionReadyListener connectionReadyListener) Set listener for connection became ready-to-use event.
void	setDatapathId(BigInteger datapathId) Set datapathId for the dpn.
void	setMessageListener(OpenflowProtocolListener messageListener) Sets the protocol message listener.
void	setPacketInFiltering(boolean enabled) Set filtering of PacketIn messages.
void	setSystemListener(SystemNotificationsListener systemListener) Sets the system message listener.
com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<TableModOutput>>	tableMod(TableModInput input)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opendaylight.openflowjava.protocol.impl.core.connection.MessageConsumer

consume

Methods inherited from interface org.opendaylight.openflowjava.protocol.api.connection.ConnectionAdapter

disconnect, getRemoteAddress, isAlive, isAutoRead, setAutoRead

Methods inherited from interface org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OpenflowProtocolService

barrier, echo, echoReply, experimenter, flowMod, getAsync, getConfig, getFeatures, getQueueConfig, groupMod, hello, meterMod, multipartRequest, packetOut, portMod, roleRequest, setAsync, setConfig, tableMod

Field Detail

REMOVAL_LISTENER

protected static final com.google.common.cache.RemovalListener<RpcResponseKey,org.opendaylight.openflowjava.protocol.impl.core.connection.ResponseExpectedRpcListener<?>> REMOVAL_LISTENER

channel

protected final io.netty.channel.Channel channel

address

protected final InetSocketAddress address

disconnectOccured

protected boolean disconnectOccured

output

protected final org.opendaylight.openflowjava.protocol.impl.core.connection.ChannelOutboundQueue output

responseCache

protected com.google.common.cache.Cache<RpcResponseKey,org.opendaylight.openflowjava.protocol.impl.core.connection.ResponseExpectedRpcListener<?>> responseCache

expiring cache for future rpcResponses.

Constructor Detail

ConnectionAdapterImpl

public ConnectionAdapterImpl(io.netty.channel.Channel channel,
                             InetSocketAddress address,
                             boolean useBarrier,
                             int channelOutboundQueueSize)

Default constructor.

Parameters:

channel - the channel to be set - used for communication

address - client address (used only in case of UDP communication, as there is no need to store address over tcp (stable channel))

useBarrier - value is configurable by configSubsytem

Method Detail

setMessageListener

public void setMessageListener(OpenflowProtocolListener messageListener)

Description copied from interface: ConnectionAdapter

Sets the protocol message listener.

Specified by:

setMessageListener in interface ConnectionAdapter

Parameters:

messageListener - here will be pushed all messages from switch

setConnectionReadyListener

public void setConnectionReadyListener(ConnectionReadyListener connectionReadyListener)

Description copied from interface: ConnectionAdapter

Set listener for connection became ready-to-use event.

Specified by:

setConnectionReadyListener in interface ConnectionAdapter

Parameters:

connectionReadyListener - listens to connection ready event

setSystemListener

public void setSystemListener(SystemNotificationsListener systemListener)

Description copied from interface: ConnectionAdapter

Sets the system message listener.

Specified by:

setSystemListener in interface ConnectionAdapter

Parameters:

systemListener - here will be pushed all system messages from library

setAlienMessageListener

public void setAlienMessageListener(AlienMessageListener alienMessageListener)

Description copied from interface: ConnectionAdapter

Set handler for alien messages received from device.

Specified by:

setAlienMessageListener in interface ConnectionAdapter

Parameters:

alienMessageListener - here will be pushed all alien messages from switch

consumeDeviceMessage

public void consumeDeviceMessage(org.opendaylight.yangtools.yang.binding.DataObject message)

Method is equivalent to MessageConsumer.consume(DataObject) to prevent missing method in every children of AbstractConnectionAdapterStatistics class, because we overriding original method for StatisticsCounters.

Parameters:

message - from device to processing

checkListeners

public void checkListeners()

Description copied from interface: ConnectionAdapter

Throws exception if any of required listeners is missing.

Specified by:

checkListeners in interface ConnectionAdapter

fireConnectionReadyNotification

public void fireConnectionReadyNotification()

Description copied from interface: ConnectionAdapter

Notify listener about connection ready-to-use event.

Specified by:

fireConnectionReadyNotification in interface ConnectionAdapter

registerOutboundQueueHandler

public <T extends OutboundQueueHandler> OutboundQueueHandlerRegistration<T> registerOutboundQueueHandler(T handler,
                                                                                                         int maxQueueDepth,
                                                                                                         long maxBarrierNanos)

Description copied from interface: ConnectionAdapter

Registers a new bypass outbound queue.

Specified by:

registerOutboundQueueHandler in interface ConnectionAdapter

Type Parameters:

T - handler type

Parameters:

handler - queue handler

maxQueueDepth - max amount of not confirmed messaged in queue (i.e. edge for barrier message)

maxBarrierNanos - regular base for barrier message

Returns:

An OutboundQueueHandlerRegistration

setPacketInFiltering

public void setPacketInFiltering(boolean enabled)

Description copied from interface: ConnectionAdapter

Set filtering of PacketIn messages. By default these messages are not filtered.

Specified by:

setPacketInFiltering in interface ConnectionAdapter

Parameters:

enabled - True if PacketIn messages should be filtered, false if they should be reported.

setDatapathId

public void setDatapathId(BigInteger datapathId)

Description copied from interface: ConnectionAdapter

Set datapathId for the dpn.

Specified by:

setDatapathId in interface ConnectionAdapter

Parameters:

datapathId - of the dpn

flowMod

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<FlowModOutput>> flowMod(FlowModInput input)

Specified by:

flowMod in interface OpenflowProtocolService

sendToSwitchExpectRpcResultFuture

protected <I extends OfHeader,O extends OfHeader> com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<O>> sendToSwitchExpectRpcResultFuture(I input,
                                                                                                                                                                                            Class<O> responseClazz,
                                                                                                                                                                                            String failureInfo)

Sends given message to switch, sending result or switch response will be reported via return value.

Parameters:

input - message to send

responseClazz - type of response

failureInfo - describes, what type of message caused failure by sending

Returns:

future object,

• if send fails, RpcResult will contain errors and failed status
• else RpcResult will be stored in responseCache and wait for particular timeout ( AbstractConnectionAdapter.RPC_RESPONSE_EXPIRATION),
  • either switch will manage to answer and then corresponding response message will be set into returned future
  • or response in cache will expire and returned future will be cancelled

sendToSwitchFuture

protected <O extends org.opendaylight.yangtools.yang.binding.DataObject> com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<O>> sendToSwitchFuture(Object input,
                                                                                                                                                                                                    String failureInfo)

Sends given message to switch, sending result will be reported via return value.

Parameters:

input - message to send

failureInfo - describes, what type of message caused failure by sending

Returns:

future object,

• if send successful, RpcResult without errors and successful status will be returned,
• else RpcResult will contain errors and failed status

consume

public void consume(org.opendaylight.yangtools.yang.binding.DataObject message)

Description copied from interface: MessageConsumer

Invoked to consume a message.

Specified by:

consume in interface MessageConsumer

Parameters:

message - to process

disconnect

public Future<Boolean> disconnect()

Description copied from interface: ConnectionAdapter

Disconnect corresponding switch.

Specified by:

disconnect in interface ConnectionAdapter

Returns:

future set to true, when disconnect completed

barrier

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<BarrierOutput>> barrier(BarrierInput input)

Specified by:

barrier in interface OpenflowProtocolService

echo

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<EchoOutput>> echo(EchoInput input)

Specified by:

echo in interface OpenflowProtocolService

echoReply

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<EchoReplyOutput>> echoReply(EchoReplyInput input)

Specified by:

echoReply in interface OpenflowProtocolService

experimenter

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<ExperimenterOutput>> experimenter(ExperimenterInput input)

Description copied from interface: OpenflowProtocolService

Send experimenter message to device, reply is not solicitated.

Specified by:

experimenter in interface OpenflowProtocolService

getConfig

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GetConfigOutput>> getConfig(GetConfigInput input)

Specified by:

getConfig in interface OpenflowProtocolService

getFeatures

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GetFeaturesOutput>> getFeatures(GetFeaturesInput input)

Specified by:

getFeatures in interface OpenflowProtocolService

getQueueConfig

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GetQueueConfigOutput>> getQueueConfig(GetQueueConfigInput input)

Specified by:

getQueueConfig in interface OpenflowProtocolService

groupMod

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GroupModOutput>> groupMod(GroupModInput input)

Specified by:

groupMod in interface OpenflowProtocolService

hello

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<HelloOutput>> hello(HelloInput input)

Specified by:

hello in interface OpenflowProtocolService

meterMod

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<MeterModOutput>> meterMod(MeterModInput input)

Specified by:

meterMod in interface OpenflowProtocolService

packetOut

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<PacketOutOutput>> packetOut(PacketOutInput input)

Specified by:

packetOut in interface OpenflowProtocolService

multipartRequest

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<MultipartRequestOutput>> multipartRequest(MultipartRequestInput input)

Specified by:

multipartRequest in interface OpenflowProtocolService

portMod

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<PortModOutput>> portMod(PortModInput input)

Specified by:

portMod in interface OpenflowProtocolService

roleRequest

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<RoleRequestOutput>> roleRequest(RoleRequestInput input)

Specified by:

roleRequest in interface OpenflowProtocolService

setConfig

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<SetConfigOutput>> setConfig(SetConfigInput input)

Specified by:

setConfig in interface OpenflowProtocolService

tableMod

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<TableModOutput>> tableMod(TableModInput input)

Specified by:

tableMod in interface OpenflowProtocolService

getAsync

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<GetAsyncOutput>> getAsync(GetAsyncInput input)

Specified by:

getAsync in interface OpenflowProtocolService

setAsync

public com.google.common.util.concurrent.ListenableFuture<org.opendaylight.yangtools.yang.common.RpcResult<SetAsyncOutput>> setAsync(SetAsyncInput input)

Specified by:

setAsync in interface OpenflowProtocolService

isAlive

public boolean isAlive()

Description copied from interface: ConnectionAdapter

Determines if the connection to the switch is alive.

Specified by:

isAlive in interface ConnectionAdapter

Returns:

true, if connection to switch is alive

isAutoRead

public boolean isAutoRead()

Description copied from interface: ConnectionAdapter

Determines if the channel is configured to auto-read.

Specified by:

isAutoRead in interface ConnectionAdapter

Returns:

true, if channel is configured to auto-read

setAutoRead

public void setAutoRead(boolean autoRead)

Description copied from interface: ConnectionAdapter

Sets option for automatic channel reading - if set to false, incoming messages won't be read.

Specified by:

setAutoRead in interface ConnectionAdapter

Parameters:

autoRead - target value to be switched to

getRemoteAddress

public InetSocketAddress getRemoteAddress()

Description copied from interface: ConnectionAdapter

Returns the address of the connected switch.

Specified by:

getRemoteAddress in interface ConnectionAdapter

Returns:

address of the remote end - address of a switch if connected

findRpcResponse

protected org.opendaylight.openflowjava.protocol.impl.core.connection.ResponseExpectedRpcListener<?> findRpcResponse(RpcResponseKey key)

Return cached RpcListener or null if not cached.