Package org.apache.nifi.groups

Class StandardDataValve

java.lang.Object

org.apache.nifi.groups.StandardDataValve

All Implemented Interfaces:

DataValve

public class StandardDataValve
extends Object
implements DataValve

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	StandardDataValve.FlowInForbiddenReason

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	GROUPS_WITH_DATA_FLOWING_IN_STATE_KEY
private static final String	GROUPS_WITH_DATA_FLOWING_OUT_STATE_KEY
private final Set<String>	groupsWithDataFlowingIn
private final Set<String>	groupsWithDataFlowingOut
private boolean	leftOpenDueToDataQueued
private static final org.slf4j.Logger	logger
private final ProcessGroup	processGroup
private final StateManager	stateManager

Constructor Summary

Constructors

Constructor	Description
StandardDataValve(ProcessGroup processGroup, StateManager stateManager)

Method Summary

Modifier and Type	Method	Description
void	closeFlowIntoGroup(ProcessGroup destinationGroup)
void	closeFlowOutOfGroup(ProcessGroup sourceGroup)
DataValveDiagnostics	getDiagnostics()
private List<String>	getIdsForKey(StateMap stateMap, String key)
private StandardDataValve.FlowInForbiddenReason	getReasonFlowIntoGroupNotAllowed(ProcessGroup destinationGroup)
private String	getReasonFlowOutOfGroupNotAllowed(ProcessGroup sourceGroup)
private void	recoverState()
private void	storeState()
String	toString()
boolean	tryOpenFlowIntoGroup(ProcessGroup destinationGroup)
boolean	tryOpenFlowOutOfGroup(ProcessGroup sourceGroup)

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final org.slf4j.Logger logger

GROUPS_WITH_DATA_FLOWING_IN_STATE_KEY

private static final String GROUPS_WITH_DATA_FLOWING_IN_STATE_KEY

See Also:

• Constant Field Values

GROUPS_WITH_DATA_FLOWING_OUT_STATE_KEY

private static final String GROUPS_WITH_DATA_FLOWING_OUT_STATE_KEY

See Also:

• Constant Field Values

processGroup

private final ProcessGroup processGroup

stateManager

private final StateManager stateManager

groupsWithDataFlowingIn

private final Set<String> groupsWithDataFlowingIn

groupsWithDataFlowingOut

private final Set<String> groupsWithDataFlowingOut

leftOpenDueToDataQueued

private boolean leftOpenDueToDataQueued

Constructor Details

StandardDataValve

public StandardDataValve(ProcessGroup processGroup,
 StateManager stateManager)

Method Details

tryOpenFlowIntoGroup

public boolean tryOpenFlowIntoGroup(ProcessGroup destinationGroup)

Specified by:

tryOpenFlowIntoGroup in interface DataValve

getReasonFlowIntoGroupNotAllowed

private StandardDataValve.FlowInForbiddenReason getReasonFlowIntoGroupNotAllowed(ProcessGroup destinationGroup)

closeFlowIntoGroup

public void closeFlowIntoGroup(ProcessGroup destinationGroup)

Specified by:

closeFlowIntoGroup in interface DataValve

tryOpenFlowOutOfGroup

public boolean tryOpenFlowOutOfGroup(ProcessGroup sourceGroup)

Specified by:

tryOpenFlowOutOfGroup in interface DataValve

getReasonFlowOutOfGroupNotAllowed

private String getReasonFlowOutOfGroupNotAllowed(ProcessGroup sourceGroup)

closeFlowOutOfGroup

public void closeFlowOutOfGroup(ProcessGroup sourceGroup)

Specified by:

closeFlowOutOfGroup in interface DataValve

getDiagnostics

public DataValveDiagnostics getDiagnostics()

Specified by:

getDiagnostics in interface DataValve

recoverState

private void recoverState()

getIdsForKey

private List<String> getIdsForKey(StateMap stateMap,
 String key)

storeState

private void storeState()

toString

public String toString()

Overrides:

toString in class Object