Package org.apache.nifi.cluster.protocol

Class StandardDataFlow

java.lang.Object

org.apache.nifi.cluster.protocol.StandardDataFlow

All Implemented Interfaces:

Serializable, DataFlow

public class StandardDataFlow
extends Object
implements Serializable, DataFlow

Represents a dataflow, which includes the raw bytes of the flow.xml and whether processors should be started automatically at application startup.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private final byte[]	authorizerFingerprint
private final byte[]	flow
private Document	flowDocument
private static final org.slf4j.Logger	logger
private final Set<String>	missingComponentIds
private static final long	serialVersionUID
private final byte[]	snippetBytes
private VersionedDataflow	versionedDataflow

Constructor Summary

Constructors

Constructor	Description
StandardDataFlow(byte[] flow, byte[] snippetBytes, byte[] authorizerFingerprint, Set<String> missingComponentIds)	Constructs an instance.
StandardDataFlow(DataFlow toCopy)

Method Summary

Modifier and Type	Method	Description
private static byte[]	copy(byte[] bytes)
byte[]	getAuthorizerFingerprint()
byte[]	getFlow()
Document	getFlowDocument()
Set<String>	getMissingComponents()
byte[]	getSnippets()
VersionedDataflow	getVersionedDataflow()
private static Document	parseFlowBytes(byte[] flow)
private VersionedDataflow	parseVersionedDataflow(byte[] flow)

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final org.slf4j.Logger logger

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

flow

private final byte[] flow

snippetBytes

private final byte[] snippetBytes

authorizerFingerprint

private final byte[] authorizerFingerprint

missingComponentIds

private final Set<String> missingComponentIds

flowDocument

private Document flowDocument

versionedDataflow

private VersionedDataflow versionedDataflow

Constructor Details

StandardDataFlow

public StandardDataFlow(byte[] flow,
 byte[] snippetBytes,
 byte[] authorizerFingerprint,
 Set<String> missingComponentIds)

Constructs an instance.

Parameters:

flow - a valid flow as bytes, which cannot be null

snippetBytes - a JSON representation of snippets. May be null.

authorizerFingerprint - the bytes of the Authorizer's fingerprint. May be null when using an external Authorizer.

missingComponentIds - the ids of components that were created as missing ghost components

Throws:

NullPointerException - if flow is null

StandardDataFlow

public StandardDataFlow(DataFlow toCopy)

Method Details

copy

private static byte[] copy(byte[] bytes)

getFlow

public byte[] getFlow()

Specified by:

getFlow in interface DataFlow

getFlowDocument

public Document getFlowDocument()

Specified by:

getFlowDocument in interface DataFlow

getVersionedDataflow

public VersionedDataflow getVersionedDataflow()

Specified by:

getVersionedDataflow in interface DataFlow

getSnippets

public byte[] getSnippets()

Specified by:

getSnippets in interface DataFlow

getAuthorizerFingerprint

public byte[] getAuthorizerFingerprint()

Specified by:

getAuthorizerFingerprint in interface DataFlow

getMissingComponents

public Set<String> getMissingComponents()

Specified by:

getMissingComponents in interface DataFlow

parseFlowBytes

private static Document parseFlowBytes(byte[] flow)
                                throws FlowSerializationException

Throws:

FlowSerializationException

parseVersionedDataflow

private VersionedDataflow parseVersionedDataflow(byte[] flow)