gov.nasa.worldwindx.examples.dataimport

Class DataInstallUtil

java.lang.Object

gov.nasa.worldwindx.examples.dataimport.DataInstallUtil

public class DataInstallUtil
extends Object

DataInstallUtil is a collection of utility methods for common data import tasks.

Constructor Summary

Constructors

Constructor and Description
DataInstallUtil()

Method Summary

Modifier and Type	Method and Description
static File	getDefaultInstallLocation(FileStore fileStore) Returns a location in the specified FileStore which should be used as the default location for installing data.
static boolean	isDataRaster(Object source, AVList params) Returns true if the specified input source is non-null and represents a data raster (imagery or elevation), and false otherwise.
static boolean	isWWDotNetLayerSet(Object source) Returns true if the specified input source is non-null and represents a reference to a World Wind .NET LayerSet XML document, and false otherwise.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataInstallUtil

public DataInstallUtil()

Method Detail

getDefaultInstallLocation

public static File getDefaultInstallLocation(FileStore fileStore)

Returns a location in the specified FileStore which should be used as the default location for installing data. This attempts to use the first FileStore location marked as an "install" location. If no install location exists, this falls back to the FileStore's default write location, the same location where downloaded data is cached.

The returned File represents an abstract path, and therefore may not exist. In this case, the caller must create the missing directories composing the abstract path.

Parameters:

fileStore - the FileStore to determine the default location for installing data.

Returns:

the default location in the specified FileStore to be used for installing data.

Throws:

IllegalArgumentException - if the FileStore is null.

isDataRaster

public static boolean isDataRaster(Object source,
                                   AVList params)

Returns true if the specified input source is non-null and represents a data raster (imagery or elevation), and false otherwise. The input source may be one of the following:

• String
• File
• URL
• URI
• InputStream

Parameters:

source - the input source reference to test as a data raster.

params - the parameter list associated with the input source, or null to indicate there are no known parameters. If the raster is already known to be imagery or elevation data, specify a non-null parameter list with the key AVKey.PIXEL_FORMAT set to AVKey.IMAGE or AVKey.ELEVATION.

Returns:

true if the input source is data raster, and false otherwise.

Throws:

IllegalArgumentException - if the input source is null.

isWWDotNetLayerSet

public static boolean isWWDotNetLayerSet(Object source)

Returns true if the specified input source is non-null and represents a reference to a World Wind .NET LayerSet XML document, and false otherwise. The input source may be one of the following:

• String
• File
• URL
• URI
• InputStream

Parameters:

source - the input source reference to test as a World Wind .NET LayerSet document.

Returns:

true if the input source is a World Wind .NET LayerSet document, and false otherwise.

Throws:

IllegalArgumentException - if the input source is null.