Package org.openremote.agent.protocol.io

Class AbstractNettyIOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>,W extends SocketAddress>

java.lang.Object
org.openremote.agent.protocol.io.AbstractNettyIOServer<T,U,V,W>
All Implemented Interfaces:
IOServer<T,U,W>
Direct Known Subclasses:
AbstractTCPServer, AbstractUDPServer
public abstract class AbstractNettyIOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>,W extends SocketAddress> extends Object implements IOServer<T,U,W>
Abstract implementation of IOServer that uses the Netty library.

  • Field Details

    • INITIAL_RECONNECT_DELAY_MILLIS

      protected static final int INITIAL_RECONNECT_DELAY_MILLIS
      See Also:

    • MAX_RECONNECT_DELAY_MILLIS

      protected static final int MAX_RECONNECT_DELAY_MILLIS
      See Also:

    • RECONNECT_BACKOFF_MULTIPLIER

      protected static final int RECONNECT_BACKOFF_MULTIPLIER
      See Also:

    • LOG

      protected static final Logger LOG

    • executorService

      protected final ExecutorService executorService

    • scheduledExecutorService

      protected final ScheduledExecutorService scheduledExecutorService

    • clientLimit

      protected int clientLimit

    • bootstrap

      protected V extends io.netty.bootstrap.AbstractBootstrap<?,?> bootstrap

    • connectionStatus

      protected org.openremote.model.asset.agent.ConnectionStatus connectionStatus

    • channelFuture

      protected io.netty.channel.ChannelFuture channelFuture

    • workerGroup

      protected io.netty.channel.EventLoopGroup workerGroup

    • channel

      protected U extends io.netty.channel.Channel channel

    • allChannels

      protected final io.netty.channel.group.ChannelGroup allChannels

    • messageConsumers

      protected final List<IOServer.IoServerMessageConsumer<T,U extends io.netty.channel.Channel,W extends SocketAddress>> messageConsumers

    • connectionStatusConsumers

      protected final List<Consumer<org.openremote.model.asset.agent.ConnectionStatus>> connectionStatusConsumers

    • clientConnectionStatusConsumers

      protected final List<BiConsumer<U extends io.netty.channel.Channel,org.openremote.model.asset.agent.ConnectionStatus>> clientConnectionStatusConsumers

    • reconnectTask

      protected ScheduledFuture<?> reconnectTask

    • reconnectDelayMilliseconds

      protected int reconnectDelayMilliseconds

  • Constructor Details

    • AbstractNettyIOServer

      public AbstractNettyIOServer()

  • Method Details

    • start

      public void start()
      Description copied from interface: IOServer
      Start the server
      Specified by:
      start in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • stop

      public void stop()
      Description copied from interface: IOServer
      Stop the server
      Specified by:
      stop in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • addMessageConsumer

      public void addMessageConsumer(IOServer.IoServerMessageConsumer<T,U,W> messageConsumer)
      Description copied from interface: IOServer
      Add a consumer of received messages
      Specified by:
      addMessageConsumer in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • removeMessageConsumer

      public void removeMessageConsumer(IOServer.IoServerMessageConsumer<T,U,W> messageConsumer)
      Description copied from interface: IOServer
      Remove a consumer of received messages
      Specified by:
      removeMessageConsumer in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • removeAllMessageConsumers

      public void removeAllMessageConsumers()
      Description copied from interface: IOServer
      Remove every consumer of received messages
      Specified by:
      removeAllMessageConsumers in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • addConnectionStatusConsumer

      public void addConnectionStatusConsumer(Consumer<org.openremote.model.asset.agent.ConnectionStatus> connectionStatusConsumer)
      Description copied from interface: IOServer
      Add a consumer of server connection status changes
      Specified by:
      addConnectionStatusConsumer in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • removeConnectionStatusConsumer

      public void removeConnectionStatusConsumer(Consumer<org.openremote.model.asset.agent.ConnectionStatus> connectionStatusConsumer)
      Description copied from interface: IOServer
      Remove a consumer of server connection status changes
      Specified by:
      removeConnectionStatusConsumer in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • addConnectionStatusConsumer

      public void addConnectionStatusConsumer(BiConsumer<U,org.openremote.model.asset.agent.ConnectionStatus> connectionStatusConsumer)
      Description copied from interface: IOServer
      Add a consumer of client connection status changes
      Specified by:
      addConnectionStatusConsumer in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • removeConnectionStatusConsumer

      public void removeConnectionStatusConsumer(BiConsumer<U,org.openremote.model.asset.agent.ConnectionStatus> connectionStatusConsumer)
      Description copied from interface: IOServer
      Remove a consumer of client connection status changes
      Specified by:
      removeConnectionStatusConsumer in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • removeAllConnectionStatusConsumers

      public void removeAllConnectionStatusConsumers()
      Description copied from interface: IOServer
      Remove every consumer of connection status
      Specified by:
      removeAllConnectionStatusConsumers in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • getConnectionStatus

      public org.openremote.model.asset.agent.ConnectionStatus getConnectionStatus()
      Description copied from interface: IOServer
      Get current connection status of the server
      Specified by:
      getConnectionStatus in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • getConnectionStatus

      public org.openremote.model.asset.agent.ConnectionStatus getConnectionStatus(U client)
      Description copied from interface: IOServer
      Get current connection status of a client (either ConnectionStatus.CONNECTED or ConnectionStatus.DISCONNECTED)
      Specified by:
      getConnectionStatus in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • disconnectClient

      public void disconnectClient(U client)
      Description copied from interface: IOServer
      Forcibly close the connection to a client
      Specified by:
      disconnectClient in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • initChannel

      protected void initChannel(U channel)

    • initClientChannel

      protected void initClientChannel(U channel)
      Initialise the specified client channel (will be called when a new client connection is made)

    • handleMessageReceived

      protected void handleMessageReceived(U channel, T message)

    • onClientDisconnected

      protected void onClientDisconnected(U client)

    • onClientConnected

      protected void onClientConnected(U client)

    • onConnectionStatusChanged

      protected void onConnectionStatusChanged(org.openremote.model.asset.agent.ConnectionStatus connectionStatus)

    • sendClientConnectionStatus

      protected void sendClientConnectionStatus(U channel, org.openremote.model.asset.agent.ConnectionStatus connectionStatus)

    • onMessageReceived

      protected void onMessageReceived(T message, U channel, W sender)

    • onDecodeException

      protected void onDecodeException(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)

    • onEncodeException

      protected void onEncodeException(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)

    • sendMessage

      public void sendMessage(T message, U client)
      Description copied from interface: IOServer
      Send a message to a client
      Specified by:
      sendMessage in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • sendMessage

      public void sendMessage(T message)
      Description copied from interface: IOServer
      Send a message to all clients
      Specified by:
      sendMessage in interface IOServer<T,U extends io.netty.channel.Channel,V extends io.netty.bootstrap.AbstractBootstrap<?,?>>

    • sendMessage

      public void sendMessage(T message, W recipient)
      Send a message to a recipient by address; for connection based protocols then the recipient must already be connected; this is mostly useful for connectionless protocols (i.e. UDP where only a single channel exists)

    • scheduleReconnect

      protected void scheduleReconnect()

    • getSocketAddressString

      protected abstract String getSocketAddressString()
      Get a string identifier that uniquely identifies the current instance of this server. e.g. tcp://IP:PORT

    • createAndConfigureBootstrap

      protected abstract V createAndConfigureBootstrap()
      Create and configure the bootstrap to use for this instance

    • getClientDescriptor

      protected abstract String getClientDescriptor(U client)
      Should return a descriptor to identify the specified client for use in log files etc.

    • addDecoders

      protected abstract void addDecoders(U channel)

    • addEncoders

      protected abstract void addEncoders(U channel)

    • addDecoder

      protected void addDecoder(U channel, io.netty.channel.ChannelInboundHandler decoder)

    • addEncoder

      protected void addEncoder(U channel, io.netty.channel.ChannelOutboundHandler encoder)