Table of Contents

Class ProducerInterceptor

Namespace
Org.Apache.Kafka.Clients.Producer
Assembly
MASES.KNet.dll
public class ProducerInterceptor : JVMBridgeListener, IDynamicMetaObjectProvider, IJVMBridgeCore, IEquatable<IJVMBridgeBaseInstance>, IDisposable, IJVMBridgeBaseStatic, IJVMBridgeBase, IJVMBridgeBaseInstance, IJVMBridgeDefinition
Inheritance
ProducerInterceptor
Implements
Derived

Constructors

ProducerInterceptor(IJVMBridgeBaseInitializer)

Initializer used internally by JCOBridge. Do not use directly.

[Obsolete("This public initializer is needed for JCOBridge internal use, other uses can produce unidentifiable behaviors.")]
public ProducerInterceptor(IJVMBridgeBaseInitializer initializer)

Parameters

initializer IJVMBridgeBaseInitializer

ProducerInterceptor(params object[])

Generic constructor used by JCOBridge when a derived class needs to forward arguments to the base JVMBridgeBase class.

public ProducerInterceptor(params object[] args)

Parameters

args object[]

Properties

BridgeClassName

Java class name to be instantiated

public override string BridgeClassName { get; }

Property Value

string

OnClose

public Action OnClose { get; set; }

Property Value

Action

Remarks

Assign a delegate to handle the event without subclassing. If both this handler and a virtual method override are present, the delegate takes precedence. Set to null to delegate to the virtual method.

OnConfigure

public Action<Map> OnConfigure { get; set; }

Property Value

Action<Map>

Remarks

Assign a delegate to handle the event without subclassing. If both this handler and a virtual method override are present, the delegate takes precedence. Set to null to delegate to the virtual method.

OnOnAcknowledgement

public Action<RecordMetadata, JVMBridgeException, Headers> OnOnAcknowledgement { get; set; }

Property Value

Action<RecordMetadata, JVMBridgeException, Headers>

Remarks

Assign a delegate to handle the event without subclassing. If both this handler and a virtual method override are present, the delegate takes precedence. Set to null to delegate to the virtual method.

OnOnAcknowledgement2

public Action<RecordMetadata, JVMBridgeException> OnOnAcknowledgement2 { get; set; }

Property Value

Action<RecordMetadata, JVMBridgeException>

Remarks

Assign a delegate to handle the event without subclassing. If both this handler and a virtual method override are present, the delegate takes precedence. Set to null to delegate to the virtual method.

OnOnSend

public Func<ProducerRecord, ProducerRecord> OnOnSend { get; set; }

Property Value

Func<ProducerRecord, ProducerRecord>

Remarks

Assign a delegate to handle the event without subclassing. If both this handler and a virtual method override are present, the delegate takes precedence. Set to null to delegate to the virtual method.

OnOnSendDispose

Optional handler invoked after the event handler returns, to dispose the JVM object returned by this event.

public Action<ProducerRecord> OnOnSendDispose { get; set; }

Property Value

Action<ProducerRecord>

Remarks

Set OnOnSendDispose when the event handler returns a JVM-backed object that is no longer needed after the call. The handler receives the return value and is responsible for calling Dispose() on it, releasing the underlying JVM global reference immediately instead of waiting for the .NET garbage collector to finalize it. If not set, the return value is not disposed automatically.

Methods

Close()

public virtual void Close()

Configure(Map)

public virtual void Configure(Map arg0)

Parameters

arg0 Map

Map

InitializeHandlers(Type)

Handlers initializer for ProducerInterceptor

protected virtual void InitializeHandlers(Type listenerRuntimeType)

Parameters

listenerRuntimeType Type

ListenerShallManageEvent(int)

Invoked from the JVMBridgeListener on each received event to notify the user which can decide to abort the execution for the specific event returning false

protected override bool ListenerShallManageEvent(int eventIndex)

Parameters

eventIndex int

The index of the event triggered as returned from AddEventHandler(string, EventHandler) or AddEventHandler<TDataClass>(string, EventHandler<CLRListenerEventArgs<TDataClass>>)

Returns

bool

Returns true to continue event evaluation, false to return the control to the JVM

Remarks

By default every event continues the execution and reads the data from JVM; this implies an extra cost which can be limited using ListenerShallManageEvent(int) or the ListenerShallManageEventIndex/ListenerShallManageEventName handlers. Returning false the control is immediately returned to the JVM, anyway the user has received the notification. It can be useful in scenarios where the user is interested in few events and the other are simply discarded to optimize the execution speed. By default, this function invokes ListenerShallManageEventIndex, then try ListenerShallManageEventName if they are set or return true

ListenerShallManageEventHandlers(int)

protected virtual bool ListenerShallManageEventHandlers(int eventIndex)

Parameters

eventIndex int

Returns

bool

OnAcknowledgement(RecordMetadata, JVMBridgeException)

public virtual void OnAcknowledgement(RecordMetadata arg0, JVMBridgeException arg1)

Parameters

arg0 RecordMetadata

RecordMetadata

arg1 JVMBridgeException

Exception

Remarks

The method invokes the default implementation in the JVM interface using OnAcknowledgementDefault(RecordMetadata, JVMBridgeException, Headers); override the method to implement a different behavior

OnAcknowledgement(RecordMetadata, JVMBridgeException, Headers)

public virtual void OnAcknowledgement(RecordMetadata arg0, JVMBridgeException arg1, Headers arg2)

Parameters

arg0 RecordMetadata

RecordMetadata

arg1 JVMBridgeException

Exception

arg2 Headers

Headers

Remarks

The method invokes the default implementation in the JVM interface using OnAcknowledgementDefault(RecordMetadata, JVMBridgeException, Headers); override the method to implement a different behavior

OnAcknowledgementDefault(RecordMetadata, JVMBridgeException)

public void OnAcknowledgementDefault(RecordMetadata arg0, JVMBridgeException arg1)

Parameters

arg0 RecordMetadata

RecordMetadata

arg1 JVMBridgeException

Exception

Remarks

The method invokes the default implementation in the JVM interface

OnAcknowledgementDefault(RecordMetadata, JVMBridgeException, Headers)

public void OnAcknowledgementDefault(RecordMetadata arg0, JVMBridgeException arg1, Headers arg2)

Parameters

arg0 RecordMetadata

RecordMetadata

arg1 JVMBridgeException

Exception

arg2 Headers

Headers

Remarks

The method invokes the default implementation in the JVM interface

OnSend(ProducerRecord)

public virtual ProducerRecord OnSend(ProducerRecord arg0)

Parameters

arg0 ProducerRecord

ProducerRecord

Returns

ProducerRecord

ProducerRecord