Package org.geotools.xml.gml

Class FCBuffer

Object

Thread

FCBuffer

All Implemented Interfaces:

Closeable, AutoCloseable, Runnable, FeatureReader<SimpleFeatureType,SimpleFeature>

public class FCBuffer
extends Thread
implements FeatureReader<SimpleFeatureType,SimpleFeature>

Feature Buffer ... acts as a FeatureReader<SimpleFeatureType, SimpleFeature> by making itself as a seperate thread prior starting execution with the SAX Parser.

Author:

dzwiers

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FCBuffer.StopException

Nested classes/interfaces inherited from class Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
protected SAXException	exception
static final int	FINISH	Last feature is in the buffer
protected SimpleFeatureType	ft
protected static Logger	logger
protected int	state
static final int	STOP

Fields inherited from class Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FCBuffer(URI document, int capacity, int timeout, SimpleFeatureType ft)

Method Summary

Modifier and Type	Method	Description
protected boolean	addFeature(SimpleFeature f)	Adds a feature to the buffer
void	close()	Release the underlying resources associated with this stream.
int	getCapacity()
static FeatureReader<SimpleFeatureType,SimpleFeature>	getFeatureReader(URI document, int capacity)	The prefered method of using this class, this will return the Feature Reader for the document specified, using the specified buffer capacity.
static FeatureReader<SimpleFeatureType,SimpleFeature>	getFeatureReader(URI document, int capacity, int timeout)
static FeatureReader<SimpleFeatureType,SimpleFeature>	getFeatureReader(URI document, int capacity, int timeout, SimpleFeatureType ft)
static FeatureReader<SimpleFeatureType,SimpleFeature>	getFeatureReader(URI document, int capacity, SimpleFeatureType ft)
SimpleFeatureType	getFeatureType()	Return the FeatureType this reader has been configured to create.
int	getInternalState()
int	getSize()
int	getTimeout()
boolean	hasNext()	Query whether this FeatureReader has another Feature.
protected void	initHints(XMLHandlerHints hints)	Called before parsing the FeatureCollection.
SimpleFeature	next()	Reads the next Feature in the FeatureReader.
SimpleFeature	peek()
void	resetTimer()
void	run()

Methods inherited from class Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, suspend, toString, yield

Methods inherited from class Object

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

Field Details

FINISH

public static final int FINISH

Last feature is in the buffer

See Also:

• Constant Field Values

STOP

public static final int STOP

See Also:

• Constant Field Values

logger

protected static Logger logger

state

protected int state

exception

protected SAXException exception

ft

protected SimpleFeatureType ft

Constructor Details

FCBuffer

protected FCBuffer(URI document,
 int capacity,
 int timeout,
 SimpleFeatureType ft)

Parameters:

ft - Nullable

Method Details

getSize

public int getSize()

Returns:

The buffer size

getCapacity

public int getCapacity()

Returns:

The buffer capacity

getTimeout

public int getTimeout()

Returns:

The buffer capacity

addFeature

protected boolean addFeature(SimpleFeature f)

Adds a feature to the buffer

Parameters:

f - Feature to add

Returns:

false if unable to add the feature

getFeatureReader

public static FeatureReader<SimpleFeatureType,SimpleFeature> getFeatureReader(URI document,
 int capacity)
                                                                       throws SAXException

The prefered method of using this class, this will return the Feature Reader for the document specified, using the specified buffer capacity.

Parameters:

document - URL to parse

Throws:

SAXException

getFeatureReader

public static FeatureReader<SimpleFeatureType,SimpleFeature> getFeatureReader(URI document,
 int capacity,
 SimpleFeatureType ft)
                                                                       throws SAXException

Throws:

SAXException

getFeatureReader

public static FeatureReader<SimpleFeatureType,SimpleFeature> getFeatureReader(URI document,
 int capacity,
 int timeout)
                                                                       throws SAXException

Throws:

SAXException

getFeatureReader

public static FeatureReader<SimpleFeatureType,SimpleFeature> getFeatureReader(URI document,
 int capacity,
 int timeout,
 SimpleFeatureType ft)
                                                                       throws SAXException

Throws:

SAXException

getFeatureType

public SimpleFeatureType getFeatureType()

Description copied from interface: FeatureReader

Return the FeatureType this reader has been configured to create.

Specified by:

getFeatureType in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

the FeatureType of the Features this FeatureReader will create.

See Also:

• FeatureReader.getFeatureType()

next

public SimpleFeature next()
                   throws IOException,
NoSuchElementException

Description copied from interface: FeatureReader

Reads the next Feature in the FeatureReader.

Specified by:

next in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

The next feature in the reader.

Throws:

IOException - If an error occurs reading the Feature.

NoSuchElementException - If there are no more Features in the Reader.

See Also:

• FeatureReader.next()

peek

public SimpleFeature peek()
                   throws IOException,
NoSuchElementException

Throws:

IOException

NoSuchElementException

See Also:

• FeatureReader.next()

hasNext

public boolean hasNext()
                throws IOException

Description copied from interface: FeatureReader

Query whether this FeatureReader has another Feature.

Specified by:

hasNext in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

True if there are more Features to be read. In other words, true if calls to next would return a feature rather than throwing an exception.

Throws:

IOException - If an error occurs determining if there are more Features.

See Also:

• FeatureReader.hasNext()

close

public void close()

Description copied from interface: FeatureReader

Release the underlying resources associated with this stream.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface FeatureReader<SimpleFeatureType,SimpleFeature>

See Also:

• FeatureReader.close()

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

See Also:

• Runnable.run()

initHints

protected void initHints(XMLHandlerHints hints)

Called before parsing the FeatureCollection. Subclasses may override to set their custom hints.

getInternalState

public int getInternalState()

resetTimer

public void resetTimer()