程序包 org.apache.bookkeeper.mledger.intercept

接口 ManagedLedgerInterceptor

@LimitedPrivate
@Stable
public interface ManagedLedgerInterceptor

Interceptor for ManagedLedger.

嵌套类概要

嵌套类

修饰符和类型	接口	说明
static interface	ManagedLedgerInterceptor.PayloadProcessorHandle	A reference handle to the payload processor.

方法概要

修饰符和类型	方法	说明
default void	afterFailedAddEntry(int numberOfMessages)	Intercept When add entry failed.
OpAddEntry	beforeAddEntry(OpAddEntry op, int numberOfMessages)	Intercept an OpAddEntry and return an OpAddEntry.
CompletableFuture<Void>	onManagedLedgerLastLedgerInitialize(String name, org.apache.bookkeeper.client.LedgerHandle ledgerHandle)	Intercept when ManagedLedger is initialized.
void	onManagedLedgerPropertiesInitialize(Map<String,String> propertiesMap)	Intercept when ManagedLedger is initialized.
void	onUpdateManagedLedgerInfo(Map<String,String> propertiesMap)
default ManagedLedgerInterceptor.PayloadProcessorHandle	processPayloadBeforeEntryCache(io.netty.buffer.ByteBuf dataReadFromLedger)	Intercept after entry is read from ledger, before it gets cached.
default ManagedLedgerInterceptor.PayloadProcessorHandle	processPayloadBeforeLedgerWrite(OpAddEntry ledgerWriteOp, io.netty.buffer.ByteBuf dataToBeStoredInLedger)	Intercept before payload gets written to ledger.

方法详细资料

beforeAddEntry

OpAddEntry beforeAddEntry(OpAddEntry op,
 int numberOfMessages)

Intercept an OpAddEntry and return an OpAddEntry.

参数:

op - an OpAddEntry to be intercepted.

numberOfMessages -

返回:

an OpAddEntry.

afterFailedAddEntry

default void afterFailedAddEntry(int numberOfMessages)

Intercept When add entry failed.

参数:

numberOfMessages -

onManagedLedgerPropertiesInitialize

void onManagedLedgerPropertiesInitialize(Map<String,String> propertiesMap)

Intercept when ManagedLedger is initialized.

参数:

propertiesMap - map of properties.

onManagedLedgerLastLedgerInitialize

CompletableFuture<Void> onManagedLedgerLastLedgerInitialize(String name,
 org.apache.bookkeeper.client.LedgerHandle ledgerHandle)

Intercept when ManagedLedger is initialized.

参数:

name - name of ManagedLedger

ledgerHandle - a LedgerHandle.

onUpdateManagedLedgerInfo

void onUpdateManagedLedgerInfo(Map<String,String> propertiesMap)

参数:

propertiesMap - map of properties.

processPayloadBeforeEntryCache

default ManagedLedgerInterceptor.PayloadProcessorHandle processPayloadBeforeEntryCache(io.netty.buffer.ByteBuf dataReadFromLedger)

Intercept after entry is read from ledger, before it gets cached.

参数:

dataReadFromLedger - data from ledger

返回:

handle to the processor

processPayloadBeforeLedgerWrite

default ManagedLedgerInterceptor.PayloadProcessorHandle processPayloadBeforeLedgerWrite(OpAddEntry ledgerWriteOp,
 io.netty.buffer.ByteBuf dataToBeStoredInLedger)

Intercept before payload gets written to ledger.

参数:

ledgerWriteOp - OpAddEntry used to trigger ledger write.

dataToBeStoredInLedger - data to be stored in ledger

返回:

handle to the processor