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 and Description
private byte[]	authorizerFingerprint
private byte[]	flow
private static URL	FLOW_XSD_RESOURCE
private Document	flowDocument
private static org.slf4j.Logger	logger
private Set<String>	missingComponentIds
private static long	serialVersionUID
private byte[]	snippetBytes

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

FLOW_XSD_RESOURCE

private static final URL FLOW_XSD_RESOURCE

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

Constructor Detail

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 - an XML 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 Detail

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

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