ObjectReader (Apache Tomcat 9.0.118 API Documentation)
Description: declaration: package: org.apache.catalina.tribes.io, class: ObjectReader

# Class ObjectReader

java.lang.Object
org.apache.catalina.tribes.io.ObjectReader

public class ObjectReader extends Object
The object reader object is an object used in conjunction with java.nio TCP messages. This object stores the message bytes in a `XByteBuffer` until a full package has been received. This object uses an XByteBuffer which is an extendable object buffer that also allows for message encoding and decoding.

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `protected boolean`
  `accessed`
  `protected long`
  `lastAccess`
  `protected static final StringManager`
  `sm`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `ObjectReader(int packetSize)`
  `ObjectReader(Socket socket)`
  Creates an `ObjectReader` for a TCP socket
  `ObjectReader(SocketChannel channel)`
  Creates an `ObjectReader` for a TCP NIO socket channel

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `access()`
  `int`
  `append(byte[] data, int off, int len, boolean count)`
  `int`
  `append(ByteBuffer data, int len, boolean count)`
  Append new bytes to buffer.
  `int`
  `bufferSize()`
  `void`
  `close()`
  `int`
  `count()`
  Returns the number of packages that the reader has read
  `ChannelMessage[]`
  `execute()`
  Send buffer to cluster listener (callback).
  `void`
  `finish()`
  `long`
  `getLastAccess()`
  `boolean`
  `hasPackage()`
  `boolean`
  `isAccessed()`
  `boolean`
  `isCancelled()`
  `void`
  `setCancelled(boolean cancelled)`
  `void`
  `setLastAccess(long lastAccess)`

  ### Methods inherited from class Object

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

- ## Field Details

  - ### sm

    protected static final StringManager sm

  - ### lastAccess

    protected long lastAccess

  - ### accessed

    protected boolean accessed

- ## Constructor Details

  - ### ObjectReader

    public ObjectReader(int packetSize)

  - ### ObjectReader

    public ObjectReader(SocketChannel channel)
    Creates an `ObjectReader` for a TCP NIO socket channel
    Parameters:
      `channel` - - the channel to be read.

  - ### ObjectReader

    public ObjectReader(Socket socket)
    Creates an `ObjectReader` for a TCP socket
    Parameters:
      `socket` - Socket

- ## Method Details

  - ### access

    public void access()

  - ### finish

    public void finish()

  - ### isAccessed

    public boolean isAccessed()

  - ### append

    public int append(ByteBuffer data, int len, boolean count)
    Append new bytes to buffer.
    Parameters:
      `data` - new transfer buffer
      `len` - length in buffer
      `count` - whether to return the count
    Returns:
      number of messages that was sent to callback (or -1 if count == false)
    See Also:
      - `XByteBuffer.countPackages()`

  - ### append

    public int append(byte[] data, int off, int len, boolean count)

  - ### execute

    public ChannelMessage[] execute()
    Send buffer to cluster listener (callback). Is message complete receiver send message to callback?
    Returns:
      array of received packages/messages
    See Also:
      - `ReceiverBase.messageDataReceived(ChannelMessage)`
      - `XByteBuffer.doesPackageExist()`
      - `XByteBuffer.extractPackage(boolean)`

  - ### bufferSize

    public int bufferSize()

  - ### hasPackage

    public boolean hasPackage()

  - ### count

    public int count()
    Returns the number of packages that the reader has read
    Returns:
      int

  - ### close

    public void close()

  - ### getLastAccess

    public long getLastAccess()

  - ### isCancelled

    public boolean isCancelled()

  - ### setLastAccess

    public void setLastAccess(long lastAccess)

  - ### setCancelled

    public void setCancelled(boolean cancelled)