org.apache.nifi.remote

Class HttpRemoteSiteListener

java.lang.Object

org.apache.nifi.remote.HttpRemoteSiteListener

All Implemented Interfaces:

RemoteSiteListener

public class HttpRemoteSiteListener
extends Object
implements RemoteSiteListener

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	HttpRemoteSiteListener.TransactionWrapper

Field Summary

Fields

Modifier and Type	Field and Description
private static HttpRemoteSiteListener	instance
private static org.slf4j.Logger	logger
private ProcessGroup	rootGroup
private ScheduledExecutorService	taskExecutor
private ScheduledFuture<?>	transactionMaintenanceTask
private Map<String,HttpRemoteSiteListener.TransactionWrapper>	transactions
private int	transactionTtlSec

Constructor Summary

Constructors

Modifier	Constructor and Description
private	HttpRemoteSiteListener(NiFiProperties nifiProperties)

Method Summary

Modifier and Type	Method and Description
void	cancelTransaction(String transactionId)
String	createTransaction()
void	destroy()
void	extendTransaction(String transactionId)
FlowFileTransaction	finalizeTransaction(String transactionId)
HandshakeProperties	getHandshakenProperties(String transactionId)
static HttpRemoteSiteListener	getInstance(NiFiProperties nifiProperties)
int	getTransactionTtlSec()
void	holdTransaction(String transactionId, FlowFileTransaction transaction, HandshakeProperties handshakenProperties)
private boolean	isTransactionActive(HttpRemoteSiteListener.TransactionWrapper transaction)
boolean	isTransactionActive(String transactionId)
void	setRootGroup(ProcessGroup rootGroup)
void	setupServerProtocol(HttpFlowFileServerProtocol serverProtocol)
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static final org.slf4j.Logger logger

transactionTtlSec

private final int transactionTtlSec

instance

private static HttpRemoteSiteListener instance

transactions

private final Map<String,HttpRemoteSiteListener.TransactionWrapper> transactions

taskExecutor

private final ScheduledExecutorService taskExecutor

rootGroup

private ProcessGroup rootGroup

transactionMaintenanceTask

private ScheduledFuture<?> transactionMaintenanceTask

Constructor Detail

HttpRemoteSiteListener

private HttpRemoteSiteListener(NiFiProperties nifiProperties)

Method Detail

getInstance

public static HttpRemoteSiteListener getInstance(NiFiProperties nifiProperties)

setRootGroup

public void setRootGroup(ProcessGroup rootGroup)

Specified by:

setRootGroup in interface RemoteSiteListener

setupServerProtocol

public void setupServerProtocol(HttpFlowFileServerProtocol serverProtocol)

start

public void start()

Specified by:

start in interface RemoteSiteListener

cancelTransaction

public void cancelTransaction(String transactionId)

stop

public void stop()

Specified by:

stop in interface RemoteSiteListener

destroy

public void destroy()

Specified by:

destroy in interface RemoteSiteListener

createTransaction

public String createTransaction()

isTransactionActive

public boolean isTransactionActive(String transactionId)

isTransactionActive

private boolean isTransactionActive(HttpRemoteSiteListener.TransactionWrapper transaction)

getHandshakenProperties

public HandshakeProperties getHandshakenProperties(String transactionId)

Parameters:

transactionId - transactionId to check

Returns:

Returns a HandshakeProperties instance which is created when this transaction is started, only if the transaction is active, and it holds a HandshakeProperties, otherwise return null

holdTransaction

public void holdTransaction(String transactionId,
                            FlowFileTransaction transaction,
                            HandshakeProperties handshakenProperties)
                     throws IllegalStateException

Throws:

IllegalStateException

finalizeTransaction

public FlowFileTransaction finalizeTransaction(String transactionId)
                                        throws IllegalStateException

Throws:

IllegalStateException

extendTransaction

public void extendTransaction(String transactionId)
                       throws IllegalStateException

Throws:

IllegalStateException

getTransactionTtlSec

public int getTransactionTtlSec()