org.apache.nifi.processors.standard

Class ReplaceTextWithMapping

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.processor.AbstractSessionFactoryProcessor

org.apache.nifi.processor.AbstractProcessor

org.apache.nifi.processors.standard.ReplaceTextWithMapping

All Implemented Interfaces:

ConfigurableComponent, Processor

@EventDriven
@SideEffectFree
@SupportsBatching
@Tags(value={"Text","Regular Expression","Update","Change","Replace","Modify","Regex","Mapping"})
@CapabilityDescription(value="Updates the content of a FlowFile by evaluating a Regular Expression against it and replacing the section of the content that matches the Regular Expression with some alternate value provided in a mapping file.")
public class ReplaceTextWithMapping
extends AbstractProcessor

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ReplaceTextWithMapping.ConfigurationState
private class	ReplaceTextWithMapping.ReplaceTextCallback

Field Summary

Fields

Modifier and Type	Field and Description
private Pattern	backReferencePattern
static PropertyDescriptor	CHARACTER_SET
private AtomicReference<ReplaceTextWithMapping.ConfigurationState>	configurationStateRef
private AtomicLong	lastModified
static PropertyDescriptor	MAPPING_FILE
static PropertyDescriptor	MAPPING_FILE_REFRESH_INTERVAL
(package private) AtomicLong	mappingTestTime
static PropertyDescriptor	MATCHING_GROUP_FOR_LOOKUP_KEY
static PropertyDescriptor	MAX_BUFFER_SIZE
private ReentrantLock	processorLock
private List<PropertyDescriptor>	properties
static PropertyDescriptor	REGEX
static Relationship	REL_FAILURE
static Relationship	REL_SUCCESS
private Set<Relationship>	relationships

Constructor Summary

Constructors

Constructor and Description
ReplaceTextWithMapping()

Method Summary

Methods

Modifier and Type	Method and Description
protected Collection<ValidationResult>	customValidate(ValidationContext context)
protected String	fillReplacementValueBackReferences(String rawReplacementValue, int numCapturingGroups)
Set<Relationship>	getRelationships()
protected List<PropertyDescriptor>	getSupportedPropertyDescriptors()
protected void	init(ProcessorInitializationContext context)
protected Map<String,String>	loadMappingFile(InputStream is)
void	onTrigger(ProcessContext context, ProcessSession session)
private void	updateMapping(ProcessContext context)

Methods inherited from class org.apache.nifi.processor.AbstractProcessor

onTrigger

Methods inherited from class org.apache.nifi.processor.AbstractSessionFactoryProcessor

getControllerServiceLookup, getIdentifier, getLogger, initialize, isScheduled, toString, updateScheduledFalse, updateScheduledTrue

Methods inherited from class org.apache.nifi.components.AbstractConfigurableComponent

equals, getPropertyDescriptor, getPropertyDescriptors, getSupportedDynamicPropertyDescriptor, hashCode, onPropertyModified, validate

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.nifi.components.ConfigurableComponent

getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Field Detail

REGEX

public static final PropertyDescriptor REGEX

MATCHING_GROUP_FOR_LOOKUP_KEY

public static final PropertyDescriptor MATCHING_GROUP_FOR_LOOKUP_KEY

MAPPING_FILE

public static final PropertyDescriptor MAPPING_FILE

MAPPING_FILE_REFRESH_INTERVAL

public static final PropertyDescriptor MAPPING_FILE_REFRESH_INTERVAL

CHARACTER_SET

public static final PropertyDescriptor CHARACTER_SET

MAX_BUFFER_SIZE

public static final PropertyDescriptor MAX_BUFFER_SIZE

REL_SUCCESS

public static final Relationship REL_SUCCESS

REL_FAILURE

public static final Relationship REL_FAILURE

backReferencePattern

private final Pattern backReferencePattern

properties

private List<PropertyDescriptor> properties

relationships

private Set<Relationship> relationships

processorLock

private final ReentrantLock processorLock

lastModified

private final AtomicLong lastModified

mappingTestTime

final AtomicLong mappingTestTime

configurationStateRef

private final AtomicReference<ReplaceTextWithMapping.ConfigurationState> configurationStateRef

Constructor Detail

ReplaceTextWithMapping

public ReplaceTextWithMapping()

Method Detail

customValidate

protected Collection<ValidationResult> customValidate(ValidationContext context)

Overrides:

customValidate in class AbstractConfigurableComponent

init

protected void init(ProcessorInitializationContext context)

Overrides:

init in class AbstractSessionFactoryProcessor

getSupportedPropertyDescriptors

protected List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class AbstractConfigurableComponent

getRelationships

public Set<Relationship> getRelationships()

Specified by:

getRelationships in interface Processor

Overrides:

getRelationships in class AbstractSessionFactoryProcessor

onTrigger

public void onTrigger(ProcessContext context,
             ProcessSession session)
               throws ProcessException

Specified by:

onTrigger in class AbstractProcessor

Throws:

ProcessException

fillReplacementValueBackReferences

protected String fillReplacementValueBackReferences(String rawReplacementValue,
                                        int numCapturingGroups)

updateMapping

private void updateMapping(ProcessContext context)

loadMappingFile

protected Map<String,String> loadMappingFile(InputStream is)
                                      throws IOException

Throws:

IOException