org.apache.nifi.processors.windows.event.log.jna

Class EventSubscribeXmlRenderingCallback

java.lang.Object

org.apache.nifi.processors.windows.event.log.jna.EventSubscribeXmlRenderingCallback

All Implemented Interfaces:

com.sun.jna.AltCallingConvention, com.sun.jna.Callback, com.sun.jna.win32.StdCall, com.sun.jna.win32.StdCallLibrary.StdCallCallback, WEvtApi.EVT_SUBSCRIBE_CALLBACK

public class EventSubscribeXmlRenderingCallback
extends Object
implements WEvtApi.EVT_SUBSCRIBE_CALLBACK

Callback that will render the XML representation of the event using native Windows API

Nested Class Summary

Nested classes/interfaces inherited from interface com.sun.jna.Callback

com.sun.jna.Callback.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
private com.sun.jna.Memory	buffer
private Consumer<String>	consumer
private ErrorLookup	errorLookup
static String	EVT_RENDER_RETURNED_THE_FOLLOWING_ERROR_CODE
static int	INITIAL_BUFFER_SIZE
private com.sun.jna.platform.win32.Kernel32	kernel32
private ComponentLog	logger
private int	maxBufferSize
static String	MISSING_EVENT_MESSAGE
private com.sun.jna.Memory	propertyCount
static String	RECEIVED_THE_FOLLOWING_WIN32_ERROR
private int	size
private boolean	subscriptionFailed
private com.sun.jna.Memory	used
private WEvtApi	wEvtApi

Fields inherited from interface com.sun.jna.Callback

FORBIDDEN_NAMES, METHOD_NAME

Constructor Summary

Constructors

Constructor and Description
EventSubscribeXmlRenderingCallback(ComponentLog logger, Consumer<String> consumer, int maxBufferSize, WEvtApi wEvtApi, com.sun.jna.platform.win32.Kernel32 kernel32, ErrorLookup errorLookup)

Method Summary

Modifier and Type	Method and Description
boolean	isSubscriptionFailed()
int	onEvent(int evtSubscribeNotifyAction, com.sun.jna.platform.win32.WinDef.PVOID userContext, com.sun.jna.platform.win32.WinNT.HANDLE eventHandle) Callback method that will be invoked when new events come in

Methods inherited from class java.lang.Object

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

Field Detail

RECEIVED_THE_FOLLOWING_WIN32_ERROR

public static final String RECEIVED_THE_FOLLOWING_WIN32_ERROR

See Also:

Constant Field Values

INITIAL_BUFFER_SIZE

public static final int INITIAL_BUFFER_SIZE

See Also:

Constant Field Values

EVT_RENDER_RETURNED_THE_FOLLOWING_ERROR_CODE

public static final String EVT_RENDER_RETURNED_THE_FOLLOWING_ERROR_CODE

See Also:

Constant Field Values

MISSING_EVENT_MESSAGE

public static final String MISSING_EVENT_MESSAGE

See Also:

Constant Field Values

logger

private final ComponentLog logger

consumer

private final Consumer<String> consumer

maxBufferSize

private final int maxBufferSize

wEvtApi

private final WEvtApi wEvtApi

kernel32

private final com.sun.jna.platform.win32.Kernel32 kernel32

errorLookup

private final ErrorLookup errorLookup

size

private int size

buffer

private com.sun.jna.Memory buffer

used

private com.sun.jna.Memory used

propertyCount

private com.sun.jna.Memory propertyCount

subscriptionFailed

private boolean subscriptionFailed

Constructor Detail

EventSubscribeXmlRenderingCallback

public EventSubscribeXmlRenderingCallback(ComponentLog logger,
                                          Consumer<String> consumer,
                                          int maxBufferSize,
                                          WEvtApi wEvtApi,
                                          com.sun.jna.platform.win32.Kernel32 kernel32,
                                          ErrorLookup errorLookup)

Method Detail

onEvent

public int onEvent(int evtSubscribeNotifyAction,
                   com.sun.jna.platform.win32.WinDef.PVOID userContext,
                   com.sun.jna.platform.win32.WinNT.HANDLE eventHandle)

Description copied from interface: WEvtApi.EVT_SUBSCRIBE_CALLBACK

Callback method that will be invoked when new events come in

Specified by:

onEvent in interface WEvtApi.EVT_SUBSCRIBE_CALLBACK

Parameters:

evtSubscribeNotifyAction - the notify action

userContext - the user context

eventHandle - the event handle

Returns:

an int that will be ignored by the Windows Log API (https://msdn.microsoft.com/en-us/library/windows/desktop/aa385577(v=vs.85).aspx)

isSubscriptionFailed

public boolean isSubscriptionFailed()