ReceiverBase (Apache Tomcat 8.5.57 API Documentation)

org.apache.catalina.tribes.transport

## Class ReceiverBase

- java.lang.Object
- - org.apache.catalina.tribes.transport.ReceiverBase

- All Implemented Interfaces:
    ChannelReceiver, Heartbeat, ListenCallback, RxTaskPool.TaskCreator
  Direct Known Subclasses:
    BioReceiver, NioReceiver

      public abstract class ReceiverBase
      extends Object
      implements ChannelReceiver, ListenCallback, RxTaskPool.TaskCreator

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static int` | `OPTION_DIRECT_BUFFER`
    `protected static StringManager` | `sm`

    - ### Fields inherited from interface org.apache.catalina.tribes.ChannelReceiver

      `MAX_UDP_SIZE`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ReceiverBase()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected void` | `bind(ServerSocket socket, int portstart, int retries)` Attempts to bind using the provided port and if that fails attempts to bind to each of the ports from portstart to (portstart + retries -1) until either there are no more ports or the bind is successful.
    `protected int` | `bindUdp(DatagramSocket socket, int portstart, int retries)` Same as bind() except it does it for the UDP port
    `boolean` | `doListen()`
    `int` | `getActiveCount()` Return the current number of threads that are in use.
    `String` | `getAddress()`
    `int` | `getAutoBind()`
    `InetAddress` | `getBind()`
    `Channel` | `getChannel()` Return the channel that is related to this ChannelReceiver
    `long` | `getCompletedTaskCount()` Return the total number of tasks that have completed execution by the pool.
    `boolean` | `getDirect()`
    `ExecutorService` | `getExecutor()`
    `String` | `getHost()` String representation of the IPv4 or IPv6 address that this host is listening to.
    `MessageListener` | `getListener()`
    `long` | `getMaxIdleTime()`
    `int` | `getMaxTasks()`
    `int` | `getMaxThreads()`
    `MessageListener` | `getMessageListener()` getMessageListener
    `int` | `getMinTasks()`
    `int` | `getMinThreads()`
    `boolean` | `getOoBInline()`
    `int` | `getPoolSize()` Return the current number of threads that are managed by the pool.
    `int` | `getPort()` Returns the listening port
    `int` | `getRxBufSize()`
    `int` | `getSecurePort()` Returns the secure listening port
    `long` | `getSelectorTimeout()`
    `boolean` | `getSoKeepAlive()`
    `boolean` | `getSoLingerOn()`
    `int` | `getSoLingerTime()`
    `boolean` | `getSoReuseAddress()`
    `int` | `getSoTrafficClass()`
    `long` | `getTaskCount()` Return the total number of tasks that have ever been scheduled for execution by the pool.
    `RxTaskPool` | `getTaskPool()`
    `boolean` | `getTcpNoDelay()`
    `int` | `getTimeout()`
    `int` | `getTxBufSize()`
    `int` | `getUdpPort()` Returns the UDP port
    `int` | `getUdpRxBufSize()`
    `int` | `getUdpTxBufSize()`
    `boolean` | `getUseBufferPool()`
    `int` | `getWorkerThreadOptions()`
    `void` | `heartbeat()` Heartbeat invocation for resources cleanup etc
    `boolean` | `isDaemon()`
    `boolean` | `isListening()`
    `void` | `messageDataReceived(ChannelMessage data)` This method is invoked on the callback object to notify it that new data has been received from one of the cluster nodes.
    `void` | `setAddress(String host)`
    `void` | `setAutoBind(int autoBind)`
    `void` | `setBind(InetAddress bind)`
    `void` | `setChannel(Channel channel)` Set the channel that is related to this ChannelReceiver
    `void` | `setDaemon(boolean daemon)`
    `void` | `setDirect(boolean direct)`
    `void` | `setExecutor(ExecutorService executor)`
    `void` | `setHost(String host)`
    `void` | `setListen(boolean doListen)`
    `void` | `setListener(MessageListener listener)`
    `void` | `setMaxIdleTime(long maxIdleTime)`
    `void` | `setMaxTasks(int maxTasks)`
    `void` | `setMaxThreads(int maxThreads)`
    `void` | `setMessageListener(MessageListener listener)` setMessageListener
    `void` | `setMinTasks(int minTasks)`
    `void` | `setMinThreads(int minThreads)`
    `void` | `setOoBInline(boolean ooBInline)`
    `void` | `setPool(RxTaskPool pool)`
    `void` | `setPort(int port)`
    `void` | `setRxBufSize(int rxBufSize)`
    `void` | `setSecurePort(int securePort)`
    `void` | `setSelectorTimeout(long selTimeout)`
    `void` | `setSoKeepAlive(boolean soKeepAlive)`
    `void` | `setSoLingerOn(boolean soLingerOn)`
    `void` | `setSoLingerTime(int soLingerTime)`
    `void` | `setSoReuseAddress(boolean soReuseAddress)`
    `void` | `setSoTrafficClass(int soTrafficClass)`
    `void` | `setTcpNoDelay(boolean tcpNoDelay)`
    `void` | `setTimeout(int timeout)`
    `void` | `setTxBufSize(int txBufSize)`
    `void` | `setUdpPort(int udpPort)`
    `void` | `setUdpRxBufSize(int udpRxBufSize)`
    `void` | `setUdpTxBufSize(int udpTxBufSize)`
    `void` | `setUseBufferPool(boolean useBufferPool)`
    `void` | `start()` Start listening for incoming messages on the host/port
    `void` | `stop()` Stop listening for messages

    - ### Methods inherited from class java.lang.Object

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

    - ### Methods inherited from interface org.apache.catalina.tribes.transport.RxTaskPool.TaskCreator

      `createRxTask`

- - ### Field Detail

    - #### OPTION_DIRECT_BUFFER

          public static final int OPTION_DIRECT_BUFFER

      See Also:
        Constant Field Values

    - #### sm

          protected static final StringManager sm

  - ### Constructor Detail

    - #### ReceiverBase

          public ReceiverBase()

  - ### Method Detail

    - #### start

          public void start()
                     throws IOException

      Description copied from interface: `ChannelReceiver`
      Start listening for incoming messages on the host/port
      Specified by:
        `start` in interface `ChannelReceiver`
      Throws:
        `IOException` - Listen failed

    - #### stop

          public void stop()

      Description copied from interface: `ChannelReceiver`
      Stop listening for messages
      Specified by:
        `stop` in interface `ChannelReceiver`

    - #### getMessageListener

          public MessageListener getMessageListener()

      getMessageListener
      Specified by:
        `getMessageListener` in interface `ChannelReceiver`
      Returns:
        MessageListener
      See Also:
        `MessageListener`

    - #### getPort

          public int getPort()

      Description copied from interface: `ChannelReceiver`
      Returns the listening port
      Specified by:
        `getPort` in interface `ChannelReceiver`
      Returns:
        The port

    - #### getRxBufSize

          public int getRxBufSize()

    - #### getTxBufSize

          public int getTxBufSize()

    - #### setMessageListener

          public void setMessageListener(MessageListener listener)

      setMessageListener
      Specified by:
        `setMessageListener` in interface `ChannelReceiver`
      Parameters:
        `listener` - MessageListener
      See Also:
        `MessageListener`

    - #### setRxBufSize

          public void setRxBufSize(int rxBufSize)

    - #### setTxBufSize

          public void setTxBufSize(int txBufSize)

    - #### getBind

          public InetAddress getBind()

      Returns:
        Returns the bind.

    - #### bind

          protected void bind(ServerSocket socket,
                  int portstart,
                  int retries)
                       throws IOException

      Attempts to bind using the provided port and if that fails attempts to bind to each of the ports from portstart to (portstart + retries -1) until either there are no more ports or the bind is successful. The address to bind to is obtained via a call to {link `getBind()`.
      Parameters:
        `socket` - The socket to bind
        `portstart` - Starting port for bind attempts
        `retries` - Number of times to attempt to bind (port incremented between attempts)
      Throws:
        `IOException` - Socket bind error

    - #### bindUdp

          protected int bindUdp(DatagramSocket socket,
                    int portstart,
                    int retries)
                         throws IOException

      Same as bind() except it does it for the UDP port
      Parameters:
        `socket` - The socket to bind
        `portstart` - Starting port for bind attempts
        `retries` - Number of times to attempt to bind (port incremented between attempts)
      Returns:
        int The retry count
      Throws:
        `IOException` - Socket bind error

    - #### messageDataReceived

          public void messageDataReceived(ChannelMessage data)

      Description copied from interface: `ListenCallback`
      This method is invoked on the callback object to notify it that new data has been received from one of the cluster nodes.
      Specified by:
        `messageDataReceived` in interface `ListenCallback`
      Parameters:
        `data` - - the message bytes received from the cluster/replication system

    - #### getWorkerThreadOptions

          public int getWorkerThreadOptions()

    - #### setBind

          public void setBind(InetAddress bind)

      Parameters:
        `bind` - The bind to set.

    - #### getDirect

          public boolean getDirect()

    - #### setDirect

          public void setDirect(boolean direct)

    - #### getAddress

          public String getAddress()

    - #### getHost

          public String getHost()

      Description copied from interface: `ChannelReceiver`
      String representation of the IPv4 or IPv6 address that this host is listening to.
      Specified by:
        `getHost` in interface `ChannelReceiver`
      Returns:
        the host that this receiver is listening to

    - #### getSelectorTimeout

          public long getSelectorTimeout()

    - #### doListen

          public boolean doListen()

    - #### getListener

          public MessageListener getListener()

    - #### getTaskPool

          public RxTaskPool getTaskPool()

    - #### getAutoBind

          public int getAutoBind()

    - #### getMaxThreads

          public int getMaxThreads()

    - #### getMinThreads

          public int getMinThreads()

    - #### getTcpNoDelay

          public boolean getTcpNoDelay()

    - #### getSoKeepAlive

          public boolean getSoKeepAlive()

    - #### getOoBInline

          public boolean getOoBInline()

    - #### getSoLingerOn

          public boolean getSoLingerOn()

    - #### getSoLingerTime

          public int getSoLingerTime()

    - #### getSoReuseAddress

          public boolean getSoReuseAddress()

    - #### getSoTrafficClass

          public int getSoTrafficClass()

    - #### getTimeout

          public int getTimeout()

    - #### getUseBufferPool

          public boolean getUseBufferPool()

    - #### getSecurePort

          public int getSecurePort()

      Description copied from interface: `ChannelReceiver`
      Returns the secure listening port
      Specified by:
        `getSecurePort` in interface `ChannelReceiver`
      Returns:
        port, -1 if a secure port is not activated

    - #### getMinTasks

          public int getMinTasks()

    - #### getMaxTasks

          public int getMaxTasks()

    - #### getExecutor

          public ExecutorService getExecutor()

    - #### isListening

          public boolean isListening()

    - #### setSelectorTimeout

          public void setSelectorTimeout(long selTimeout)

    - #### setListen

          public void setListen(boolean doListen)

    - #### setAddress

          public void setAddress(String host)

    - #### setHost

          public void setHost(String host)

    - #### setListener

          public void setListener(MessageListener listener)

    - #### setPool

          public void setPool(RxTaskPool pool)

    - #### setPort

          public void setPort(int port)

    - #### setAutoBind

          public void setAutoBind(int autoBind)

    - #### setMaxThreads

          public void setMaxThreads(int maxThreads)

    - #### setMinThreads

          public void setMinThreads(int minThreads)

    - #### setTcpNoDelay

          public void setTcpNoDelay(boolean tcpNoDelay)

    - #### setSoKeepAlive

          public void setSoKeepAlive(boolean soKeepAlive)

    - #### setOoBInline

          public void setOoBInline(boolean ooBInline)

    - #### setSoLingerOn

          public void setSoLingerOn(boolean soLingerOn)

    - #### setSoLingerTime

          public void setSoLingerTime(int soLingerTime)

    - #### setSoReuseAddress

          public void setSoReuseAddress(boolean soReuseAddress)

    - #### setSoTrafficClass

          public void setSoTrafficClass(int soTrafficClass)

    - #### setTimeout

          public void setTimeout(int timeout)

    - #### setUseBufferPool

          public void setUseBufferPool(boolean useBufferPool)

    - #### setSecurePort

          public void setSecurePort(int securePort)

    - #### setMinTasks

          public void setMinTasks(int minTasks)

    - #### setMaxTasks

          public void setMaxTasks(int maxTasks)

    - #### setExecutor

          public void setExecutor(ExecutorService executor)

    - #### heartbeat

          public void heartbeat()

      Description copied from interface: `Heartbeat`
      Heartbeat invocation for resources cleanup etc
      Specified by:
        `heartbeat` in interface `Heartbeat`

    - #### getUdpPort

          public int getUdpPort()

      Description copied from interface: `ChannelReceiver`
      Returns the UDP port
      Specified by:
        `getUdpPort` in interface `ChannelReceiver`
      Returns:
        port, -1 if the UDP port is not activated.

    - #### setUdpPort

          public void setUdpPort(int udpPort)

    - #### getUdpRxBufSize

          public int getUdpRxBufSize()

    - #### setUdpRxBufSize

          public void setUdpRxBufSize(int udpRxBufSize)

    - #### getUdpTxBufSize

          public int getUdpTxBufSize()

    - #### setUdpTxBufSize

          public void setUdpTxBufSize(int udpTxBufSize)

    - #### getChannel

          public Channel getChannel()

      Description copied from interface: `ChannelReceiver`
      Return the channel that is related to this ChannelReceiver
      Specified by:
        `getChannel` in interface `ChannelReceiver`
      Returns:
        Channel

    - #### setChannel

          public void setChannel(Channel channel)

      Description copied from interface: `ChannelReceiver`
      Set the channel that is related to this ChannelReceiver
      Specified by:
        `setChannel` in interface `ChannelReceiver`
      Parameters:
        `channel` - The channel

    - #### getPoolSize

          public int getPoolSize()

      Return the current number of threads that are managed by the pool.
      Returns:
        the current number of threads that are managed by the pool

    - #### getActiveCount

          public int getActiveCount()

      Return the current number of threads that are in use.
      Returns:
        the current number of threads that are in use

    - #### getTaskCount

          public long getTaskCount()

      Return the total number of tasks that have ever been scheduled for execution by the pool.
      Returns:
        the total number of tasks that have ever been scheduled for execution by the pool

    - #### getCompletedTaskCount

          public long getCompletedTaskCount()

      Return the total number of tasks that have completed execution by the pool.
      Returns:
        the total number of tasks that have completed execution by the pool

    - #### isDaemon

          public boolean isDaemon()

    - #### getMaxIdleTime

          public long getMaxIdleTime()

    - #### setDaemon

          public void setDaemon(boolean daemon)

    - #### setMaxIdleTime

          public void setMaxIdleTime(long maxIdleTime)

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