Package com.luciad.format.arinc.decoder

Class TLcdARINCDecoder

java.lang.Object

com.luciad.format.arinc.decoder.TLcdARINCDecoder

All Implemented Interfaces:

ILcdARINCDecoder, ILcdInputStreamFactoryCapable, ILcdModelDecoder

public class TLcdARINCDecoder
extends Object
implements ILcdARINCDecoder, ILcdInputStreamFactoryCapable

The default implementation of ILcdARINCDecoder.

Input

File	Required	Entry point	Description
*.dat	x		Data file containing a ARINC data
*.pc	x		Data file containing a ARINC data

Supported transfer protocols

• This model decoder supports all transfer protocols that are supported by the ILcdInputStreamFactory of this decoder.

Model structure

• This model decoder creates a model per ARINC file.
• All models returned by this model decoder implement ILcd2DBoundsIndexedModel.

Model descriptor

• All models returned by this model decoder have a TLcdARINC...ModelDescriptor according to the object type.
• The type name of the model descriptor is the "ARINC", and display name changes by the object type.

Model Descriptor	Display Name
TLcdARINCDMEModelDescriptor	DME
TLcdARINCILSModelDescriptor	ILS
TLcdARINCMarkerModelDescriptor	Marker
TLcdARINCNDBModelDescriptor	NDB
TLcdARINCTACANModelDescriptor	TACAN
TLcdARINCVORModelDescriptor	VOR
TLcdARINCWayPointModelDescriptor	Waypoint

Model reference

• All models returned by this model decoder have a TLcdGeodeticReference.
• The used datum is a standard TLcdGeodeticDatum (WGS-84).

Model elements

• All ARINC model elements use an ARINC data type. For more information about the model and its elements, see the com.luciad.format.arinc.model package and its sub-packages.

Sample code

 ILcdModelDecoder decoder = new TLcdARINCDecoder();
 ILcdModel model = decoder.decode("arinc.pc");
 

Thread safety

• The decoding of models is thread-safe, as long as no properties are changed during the decoding.
• The decoded models are thread-safe for read access.

Supported versions and specifications

• This decoder supports version 15, 17 and 18 of the ARINC 424 specification.

Constructor Summary

Constructors

Constructor	Description
TLcdARINCDecoder()	Constructs a new TLcdARINCDecoder object with no ILcdARINCHandler installed.

Method Summary

Modifier and Type	Method	Description
void	addHandlerForTypeToBeDecoded(ILcdARINCHandler aHandler)	Adds an ILcdARINCHandler to the decoder.
boolean	canDecodeSource(String aSource)	Returns true when the file or data source pointed to by 'aSource' is recognized as a decodable Arinc format.
ILcdModel	decode(String aSource)	Decodes the given source and returns an ILcdModel containing the decoded ARINC objects.
ILcdBounds	getBoundsToFilterOn()	Returns the (geodetic) bounds to filter on.
String	getDisplayName()	Returns a short, displayable name for the format that is decoded by this ILcdModelDecoder.
String	getErrorMessage()	Returns the error message of the last decode call (when an error occurred).
ILcdARINCHandler	getHandlerForTypeToBeDecoded(int aIndex)	Returns the handler with the given index.
int	getHandlerForTypeToBeDecodedCount()	Returns the number of handlers set on this decoder.
ILcdBounds	getInitialBounds()	Returns the initial bounds for each model created in the decode method.
ILcdInputStreamFactory	getInputStreamFactory()	Returns the input stream factory that is currently used for creating input streams given source names.
static boolean	isTraceOn()	Deprecated. This method has been deprecated.
void	removeAllHandlersForTypeToBeDecoded()	Removes all handlers from this decoder.
void	setBoundsToFilterOn(ILcdBounds aBoundsToFilterOn)	Specifies the (geodetic) bounds that will be used as a filter on each model created in the decode method.
void	setInitialBounds(ILcdBounds aInitialBounds)	Specifies the bounds to be used as initial bounds for each model created in the decode method.
void	setInputStreamFactory(ILcdInputStreamFactory aInputStreamFactory)	Sets the input stream factory that will be used for creating input streams given source names.
static void	setTraceOn(boolean aTraceOn)	Deprecated. This method has been deprecated.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.luciad.model.ILcdModelDecoder

canDecodeSource, decodeModelMetadata, decodeModelMetadata, decodeSource, discoverDataSources

Constructor Details

TLcdARINCDecoder

public TLcdARINCDecoder()

Constructs a new TLcdARINCDecoder object with no ILcdARINCHandler installed.

To decode one or more ARINC domain objects (e.g. navaids, routes, airspaces, ...), it is necessary to register one or more ILcdARINCHandler objects through addHandlerForTypeToBeDecoded(ILcdARINCHandler).

Method Details

canDecodeSource

public boolean canDecodeSource(String aSource)

Returns true when the file or data source pointed to by 'aSource' is recognized as a decodable Arinc format.

Specified by:

canDecodeSource in interface ILcdModelDecoder

Parameters:

aSource - the source to be decoded

Returns:

true for Arinc data sources

See Also:

• ILcdModelDecoder.decode(String)
• ILcdModelDecoder.decodeModelMetadata(String)

decode

public ILcdModel decode(String aSource)
                 throws IOException

Decodes the given source and returns an ILcdModel containing the decoded ARINC objects.

Before invoking this method, a handler (ILcdARINCHandler) should be registered on this decoder for each type of object that must be decoded, through addHandlerForTypeToBeDecoded(ILcdARINCHandler). For example, a TLcdARINCAerodromeHandler can be registered to decode Aerodrome objects.

For each handler registered on this decoder, a new model will be created. When multiple handlers are registered, a TLcdModelList is returned containing all the created models, with an instance of TLcdARINCModelListDescriptor as model descriptor. If necessary, this model list can be decomposed back into a set of individual models

If no handlers are registered at all, an empty model will be returned.

Specified by:

decode in interface ILcdModelDecoder

Parameters:

aSource - the full path to the file to be decoded, including the file name.

Returns:

a model containing the decoded objects (possibly as a set of sub models).

Throws:

IOException - thrown if an error occurs during the read process.

See Also:

• ILcdModelDecoder.canDecodeSource(String)

getDisplayName

public String getDisplayName()

Description copied from interface: ILcdModelDecoder

Returns a short, displayable name for the format that is decoded by this ILcdModelDecoder.

Specified by:

getDisplayName in interface ILcdModelDecoder

Returns:

the displayable name of this ILcdModelDecoder.

addHandlerForTypeToBeDecoded

public void addHandlerForTypeToBeDecoded(ILcdARINCHandler aHandler)

Description copied from interface: ILcdARINCDecoder

Adds an ILcdARINCHandler to the decoder.

Each handler will generate an ILcdModel containing one specific kind of domain object. At the end of the decode process, the models created by the available handlers will be brought together in a TLcdModelList.

Specified by:

addHandlerForTypeToBeDecoded in interface ILcdARINCDecoder

Parameters:

aHandler - an ILcdARINCHandler implementation

See Also:

• ILcdARINCDecoder.getHandlerForTypeToBeDecoded(int)
• ILcdARINCDecoder.getHandlerForTypeToBeDecodedCount()

getHandlerForTypeToBeDecoded

public ILcdARINCHandler getHandlerForTypeToBeDecoded(int aIndex)

Description copied from interface: ILcdARINCDecoder

Returns the handler with the given index.

Specified by:

getHandlerForTypeToBeDecoded in interface ILcdARINCDecoder

Parameters:

aIndex - the index in the list of handlers

Returns:

the handler at the given index

See Also:

• ILcdARINCDecoder.addHandlerForTypeToBeDecoded(com.luciad.format.arinc.decoder.ILcdARINCHandler)
• ILcdARINCDecoder.getHandlerForTypeToBeDecodedCount()

getHandlerForTypeToBeDecodedCount

public int getHandlerForTypeToBeDecodedCount()

Description copied from interface: ILcdARINCDecoder

Returns the number of handlers set on this decoder.

Specified by:

getHandlerForTypeToBeDecodedCount in interface ILcdARINCDecoder

Returns:

the number of handlers

See Also:

• ILcdARINCDecoder.addHandlerForTypeToBeDecoded(com.luciad.format.arinc.decoder.ILcdARINCHandler)
• ILcdARINCDecoder.getHandlerForTypeToBeDecoded(int)

removeAllHandlersForTypeToBeDecoded

public void removeAllHandlersForTypeToBeDecoded()

Description copied from interface: ILcdARINCDecoder

Removes all handlers from this decoder.

Specified by:

removeAllHandlersForTypeToBeDecoded in interface ILcdARINCDecoder

See Also:

• ILcdARINCDecoder.addHandlerForTypeToBeDecoded(com.luciad.format.arinc.decoder.ILcdARINCHandler)

getErrorMessage

public String getErrorMessage()

Description copied from interface: ILcdARINCDecoder

Returns the error message of the last decode call (when an error occurred).

Note: the error message can only be retrieved once after a decode call.

Specified by:

getErrorMessage in interface ILcdARINCDecoder

Returns:

a string containing the errors occurred during the last decode process

getBoundsToFilterOn

public ILcdBounds getBoundsToFilterOn()

Description copied from interface: ILcdARINCDecoder

Returns the (geodetic) bounds to filter on.

Specified by:

getBoundsToFilterOn in interface ILcdARINCDecoder

Returns:

the bounds to be filtered on

See Also:

• ILcdARINCDecoder.setBoundsToFilterOn(com.luciad.shape.ILcdBounds)

getInitialBounds

public ILcdBounds getInitialBounds()

Description copied from interface: ILcdARINCDecoder

Returns the initial bounds for each model created in the decode method.

Specified by:

getInitialBounds in interface ILcdARINCDecoder

Returns:

the initial bounds for each model created in the decode method

See Also:

• ILcdARINCDecoder.setInitialBounds(com.luciad.shape.ILcdBounds)

setBoundsToFilterOn

public void setBoundsToFilterOn(ILcdBounds aBoundsToFilterOn)

Description copied from interface: ILcdARINCDecoder

Specifies the (geodetic) bounds that will be used as a filter on each model created in the decode method.

If this bounds is null, all objects found in the input file will be inserted into the model. If this bounds is not null, only the objects whose bounds interact with the specified bounds will be inserted into the model.

Specified by:

setBoundsToFilterOn in interface ILcdARINCDecoder

Parameters:

aBoundsToFilterOn - the bounds to be used as a filter

setInitialBounds

public void setInitialBounds(ILcdBounds aInitialBounds)

Description copied from interface: ILcdARINCDecoder

Specifies the bounds to be used as initial bounds for each model created in the decode method.

This bounds should be large enough to enclose (most of) the model objects. This option can improve performance by avoiding too many expansions of the model bounds.

This parameter may be null.

Note: This bounds is not a filter! If a model objects bounds does not interact with aInitialBounds, aInitialBounds will be enlarged to enclose the object.

Specified by:

setInitialBounds in interface ILcdARINCDecoder

Parameters:

aInitialBounds - the initial bounds for each model created in the decode method

setInputStreamFactory

public void setInputStreamFactory(ILcdInputStreamFactory aInputStreamFactory)

Sets the input stream factory that will be used for creating input streams given source names.

Specified by:

setInputStreamFactory in interface ILcdInputStreamFactoryCapable

Parameters:

aInputStreamFactory - the input stream factory to be used.

getInputStreamFactory

public ILcdInputStreamFactory getInputStreamFactory()

Returns the input stream factory that is currently used for creating input streams given source names.

Specified by:

getInputStreamFactory in interface ILcdInputStreamFactoryCapable

Returns:

the input stream factory that is currently used.

isTraceOn

public static boolean isTraceOn()

Deprecated.

This method has been deprecated. It is recommended to use the standard Java logging framework directly.

Returns true if tracing is enabled for this class.

Returns:

true if tracing is enabled for this class, false otherwise.

setTraceOn

public static void setTraceOn(boolean aTraceOn)

Deprecated.

This method has been deprecated. It is recommended to use the standard Java logging framework directly.

Enables tracing for this class instance. Calling this method with either true or false as argument automatically turns off tracing for all other class instances for which setTraceOn has not been called. If the argument is false then only the informative, warning and error log messages are recorded.

Parameters:

aTraceOn - if true then all log messages are recorded for this instance. If false, then only the informative, warning and error log messages are recorded.