Package net.sf.okapi.common.filters

Class AbstractLineFilter

java.lang.Object

net.sf.okapi.common.filters.AbstractFilter

net.sf.okapi.common.filters.AbstractLineFilter

All Implemented Interfaces:

AutoCloseable, Iterator<Event>, IFilter

Direct Known Subclasses:

BasePlainTextFilter

public abstract class AbstractLineFilter
extends AbstractFilter

Base class for the filters which input is processed line-upon-line. Provides low-level skeleton, events, and configuration handling mechanisms.

Field Summary

Fields

Modifier and Type	Field	Description
protected RawDocument	input
static String	LINE_NUMBER
protected LocaleId	srcLang
protected StartDocument	startDoc
protected LocaleId	trgLang

Fields inherited from interface net.sf.okapi.common.filters.IFilter

SUB_FILTER

Constructor Summary

Constructors

Constructor	Description
AbstractLineFilter()

Method Summary

Modifier and Type	Method	Description
protected void	addLineBreak()
void	cancel()	Cancels the current process.
void	close()	Closes the input document.
protected void	done()
protected GenericSkeleton	getActiveSkeleton()
protected DocumentPart	getFirstDocumentPart()
protected ITextUnit	getFirstTextUnit()
protected GenericSkeleton	getHeadSkeleton()
protected String	getLineBreak()
protected int	getQueueSize()
protected LocaleId	getTargetLocale()
boolean	hasNext()	Indicates if there is an event to process.
protected void	init()
Event	next()	Gets the next event available.
void	open(RawDocument input)	Opens the input document described in a give RawDocument object.
void	open(RawDocument input, boolean generateSkeleton)	Opens the input document described in a give RawDocument object, and optionally creates skeleton information.
protected abstract TextProcessingResult	processLine(TextContainer lineContainer)	Called by the filter for every line read from the input
protected boolean	sendEvent(int index, EventType eventType, IResource res)
protected boolean	sendEvent(EventType eventType, IResource res)
protected void	waitForLine(boolean lastChance)	Called by the filter when there are no input lines (the input has been read).

Methods inherited from class net.sf.okapi.common.filters.AbstractFilter

addConfiguration, addConfiguration, addConfiguration, addConfigurations, createEndFilterEvent, createFilterWriter, createSkeletonWriter, createStartFilterEvent, findConfiguration, getConfiguration, getConfigurations, getDisplayName, getDocumentId, getDocumentName, getEncoderManager, getEncoding, getFilterConfigurationMapper, getMimeType, getName, getNewlineType, getParameters, getParameters, getParametersClassName, getParentId, getSrcLoc, getTrgLoc, isCanceled, isGenerateSkeleton, isMultilingual, isUtf8Bom, isUtf8Encoding, removeConfiguration, setDisplayName, setDocumentName, setEncoding, setFilterConfigurationMapper, setGenerateSkeleton, setMimeType, setMultilingual, setName, setNewlineType, setOptions, setParameters, setParentId, setSrcLoc, setTrgLoc

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.okapi.common.filters.IFilter

stream

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Field Detail

LINE_NUMBER

public static final String LINE_NUMBER

See Also:

Constant Field Values

srcLang

protected LocaleId srcLang

trgLang

protected LocaleId trgLang

startDoc

protected StartDocument startDoc

input

protected RawDocument input

Constructor Detail

AbstractLineFilter

public AbstractLineFilter()

Method Detail

cancel

public void cancel()

Description copied from interface: IFilter

Cancels the current process.

Specified by:

cancel in interface IFilter

Overrides:

cancel in class AbstractFilter

close

public final void close()

Description copied from interface: IFilter

Closes the input document. Developers should call this method from within their code before sending the last event: This can allow writer objects to overwrite the input file when they receive the last event. This method must also be safe to call even if the input document is not opened.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface IFilter

Overrides:

close in class AbstractFilter

hasNext

public boolean hasNext()

Description copied from interface: IFilter

Indicates if there is an event to process.

Implementer Note: The caller must be able to call this method several times without changing state.

Returns:

True if there is at least one event to process, false if not.

open

public void open(RawDocument input)

Description copied from interface: IFilter

Opens the input document described in a give RawDocument object. Skeleton information is always created when you use this method.

Parameters:

input - The RawDocument object to use to open the document.

open

public void open(RawDocument input,
                 boolean generateSkeleton)

Description copied from interface: IFilter

Opens the input document described in a give RawDocument object, and optionally creates skeleton information.

Specified by:

open in interface IFilter

Overrides:

open in class AbstractFilter

Parameters:

input - The RawDocument object to use to open the document.

generateSkeleton - true to generate the skeleton data, false otherwise.

getFirstTextUnit

protected ITextUnit getFirstTextUnit()

getFirstDocumentPart

protected DocumentPart getFirstDocumentPart()

getTargetLocale

protected LocaleId getTargetLocale()

next

public Event next()

Description copied from interface: IFilter

Gets the next event available. Calling this method can be done only once on each event.

Returns:

The next event available or null if there are no events.

sendEvent

protected final boolean sendEvent(EventType eventType,
                                  IResource res)

getActiveSkeleton

protected final GenericSkeleton getActiveSkeleton()

getHeadSkeleton

protected final GenericSkeleton getHeadSkeleton()

getQueueSize

protected final int getQueueSize()

sendEvent

protected final boolean sendEvent(int index,
                                  EventType eventType,
                                  IResource res)

Parameters:

index -

eventType -

res -

getLineBreak

protected final String getLineBreak()

addLineBreak

protected final void addLineBreak()

init

protected void init()

done

protected void done()

processLine

protected abstract TextProcessingResult processLine(TextContainer lineContainer)

Called by the filter for every line read from the input

Parameters:

lineContainer -

Returns:

waitForLine

protected void waitForLine(boolean lastChance)

Called by the filter when there are no input lines (the input has been read). Used to control implementation-specific internal buffers.

Parameters:

lastChance - True if there are no events in the queue, and if the method will not produce events, the filter will be finished.