java.lang.Object
- io.netty5.handler.codec.http2.DefaultHttp2ConnectionDecoder

All Implemented Interfaces:

Http2ConnectionDecoder, Closeable, AutoCloseable
```
@UnstableApi
public class DefaultHttp2ConnectionDecoder
extends Object
implements Http2ConnectionDecoder
```
Provides the default implementation for processing inbound frame events and delegates to a Http2FrameListener
This class will read HTTP/2 frames and delegate the events to a Http2FrameListener
This interface enforces inbound flow control functionality through Http2LocalFlowController

Constructor Summary

Constructors
Constructor	Description
`DefaultHttp2ConnectionDecoder(Http2Connection connection, Http2ConnectionEncoder encoder, Http2FrameReader frameReader)`
`DefaultHttp2ConnectionDecoder(Http2Connection connection, Http2ConnectionEncoder encoder, Http2FrameReader frameReader, Http2PromisedRequestVerifier requestVerifier)`
`DefaultHttp2ConnectionDecoder(Http2Connection connection, Http2ConnectionEncoder encoder, Http2FrameReader frameReader, Http2PromisedRequestVerifier requestVerifier, boolean autoAckSettings)`	Create a new instance.
`DefaultHttp2ConnectionDecoder(Http2Connection connection, Http2ConnectionEncoder encoder, Http2FrameReader frameReader, Http2PromisedRequestVerifier requestVerifier, boolean autoAckSettings, boolean autoAckPing)`	Create a new instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected long`	`calculateMaxHeaderListSizeGoAway(long maxHeaderListSize)`	Calculate the threshold in bytes which should trigger a `GO_AWAY` if a set of headers exceeds this amount.
`void`	`close()`
`Http2Connection`	`connection()`	Provides direct access to the underlying connection.
`void`	`decodeFrame(ChannelHandlerContext ctx, Buffer in)`	Called by the `Http2ConnectionHandler` to decode the next frame from the input buffer.
`Http2LocalFlowController`	`flowController()`	Provides the local flow controller for managing inbound traffic.
`Http2FrameListener`	`frameListener()`	Get the `Http2FrameListener` which will be notified when frames are decoded.
`void`	`frameListener(Http2FrameListener listener)`	Set the `Http2FrameListener` which will be notified when frames are decoded.
`void`	`lifecycleManager(Http2LifecycleManager lifecycleManager)`	Sets the lifecycle manager.
`Http2Settings`	`localSettings()`	Gets the local settings for this endpoint of the HTTP/2 connection.
`boolean`	`prefaceReceived()`	Indicates whether or not the first initial `SETTINGS` frame was received from the remote endpoint.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DefaultHttp2ConnectionDecoder
```
public DefaultHttp2ConnectionDecoder(Http2Connection connection,
                                     Http2ConnectionEncoder encoder,
                                     Http2FrameReader frameReader)
```
  - DefaultHttp2ConnectionDecoder
```
public DefaultHttp2ConnectionDecoder(Http2Connection connection,
                                     Http2ConnectionEncoder encoder,
                                     Http2FrameReader frameReader,
                                     Http2PromisedRequestVerifier requestVerifier)
```
  - DefaultHttp2ConnectionDecoder
```
public DefaultHttp2ConnectionDecoder(Http2Connection connection,
                                     Http2ConnectionEncoder encoder,
                                     Http2FrameReader frameReader,
                                     Http2PromisedRequestVerifier requestVerifier,
                                     boolean autoAckSettings)
```
    Create a new instance.
    
    Parameters:
    
    connection - The Http2Connection associated with this decoder.
    
    encoder - The Http2ConnectionEncoder associated with this decoder.
    
    frameReader - Responsible for reading/parsing the raw frames. As opposed to this object which applies h2 semantics on top of the frames.
    
    requestVerifier - Determines if push promised streams are valid.
    
    autoAckSettings - false to disable automatically applying and sending settings acknowledge frame. The Http2ConnectionEncoder is expected to be an instance of Http2SettingsReceivedConsumer and will apply the earliest received but not yet ACKed SETTINGS when writing the SETTINGS ACKs. true to enable automatically applying and sending settings acknowledge frame.
  - DefaultHttp2ConnectionDecoder
```
public DefaultHttp2ConnectionDecoder(Http2Connection connection,
                                     Http2ConnectionEncoder encoder,
                                     Http2FrameReader frameReader,
                                     Http2PromisedRequestVerifier requestVerifier,
                                     boolean autoAckSettings,
                                     boolean autoAckPing)
```
    Create a new instance.
    
    Parameters:
    
    connection - The Http2Connection associated with this decoder.
    
    encoder - The Http2ConnectionEncoder associated with this decoder.
    
    frameReader - Responsible for reading/parsing the raw frames. As opposed to this object which applies h2 semantics on top of the frames.
    
    requestVerifier - Determines if push promised streams are valid.
    
    autoAckSettings - false to disable automatically applying and sending settings acknowledge frame. The Http2ConnectionEncoder is expected to be an instance of Http2SettingsReceivedConsumer and will apply the earliest received but not yet ACKed SETTINGS when writing the SETTINGS ACKs. true to enable automatically applying and sending settings acknowledge frame.
    
    autoAckPing - false to disable automatically sending ping acknowledge frame. true to enable automatically sending ping ack frame.
- Method Detail
  - lifecycleManager
```
public void lifecycleManager(Http2LifecycleManager lifecycleManager)
```
    Description copied from interface: Http2ConnectionDecoder
    
    Sets the lifecycle manager. Must be called as part of initialization before the decoder is used.
    
    Specified by:
    
    lifecycleManager in interface Http2ConnectionDecoder
  - connection
```
public Http2Connection connection()
```
    Description copied from interface: Http2ConnectionDecoder
    
    Provides direct access to the underlying connection.
    
    Specified by:
    
    connection in interface Http2ConnectionDecoder
  - flowController
```
public final Http2LocalFlowController flowController()
```
    Description copied from interface: Http2ConnectionDecoder
    
    Provides the local flow controller for managing inbound traffic.
    
    Specified by:
    
    flowController in interface Http2ConnectionDecoder
  - frameListener
```
public void frameListener(Http2FrameListener listener)
```
    Description copied from interface: Http2ConnectionDecoder
    
    Set the Http2FrameListener which will be notified when frames are decoded.
    This must be set before frames are decoded.
    
    Specified by:
    
    frameListener in interface Http2ConnectionDecoder
  - frameListener
```
public Http2FrameListener frameListener()
```
    Description copied from interface: Http2ConnectionDecoder
    
    Get the Http2FrameListener which will be notified when frames are decoded.
    
    Specified by:
    
    frameListener in interface Http2ConnectionDecoder
  - prefaceReceived
```
public boolean prefaceReceived()
```
    Description copied from interface: Http2ConnectionDecoder
    
    Indicates whether or not the first initial SETTINGS frame was received from the remote endpoint.
    
    Specified by:
    
    prefaceReceived in interface Http2ConnectionDecoder
  - decodeFrame
```
public void decodeFrame(ChannelHandlerContext ctx,
                        Buffer in)
                 throws Http2Exception
```
    Description copied from interface: Http2ConnectionDecoder
    
    Called by the Http2ConnectionHandler to decode the next frame from the input buffer.
    
    Specified by:
    
    decodeFrame in interface Http2ConnectionDecoder
    
    Throws:
    
    Http2Exception
  - localSettings
```
public Http2Settings localSettings()
```
    Description copied from interface: Http2ConnectionDecoder
    
    Gets the local settings for this endpoint of the HTTP/2 connection.
    
    Specified by:
    
    localSettings in interface Http2ConnectionDecoder
  - close
```
public void close()
```
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable
    
    Specified by:
    
    close in interface Http2ConnectionDecoder
  - calculateMaxHeaderListSizeGoAway
```
protected long calculateMaxHeaderListSizeGoAway(long maxHeaderListSize)
```
    Calculate the threshold in bytes which should trigger a GO_AWAY if a set of headers exceeds this amount.
    
    Parameters:
    
    maxHeaderListSize - SETTINGS_MAX_HEADER_LIST_SIZE for the local endpoint.
    
    Returns:
    
    the threshold in bytes which should trigger a GO_AWAY if a set of headers exceeds this amount.

Class DefaultHttp2ConnectionDecoder

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DefaultHttp2ConnectionDecoder

DefaultHttp2ConnectionDecoder

DefaultHttp2ConnectionDecoder

DefaultHttp2ConnectionDecoder

Method Detail

lifecycleManager

connection

flowController

frameListener

frameListener

prefaceReceived

decodeFrame

localSettings

close

calculateMaxHeaderListSizeGoAway