gov.nasa.worldwind.terrain

Class BasicElevationModel.DownloadPostProcessor

java.lang.Object

gov.nasa.worldwind.retrieve.AbstractRetrievalPostProcessor

gov.nasa.worldwind.terrain.BasicElevationModel.DownloadPostProcessor

All Implemented Interfaces:

RetrievalPostProcessor

Direct Known Subclasses:

BasicElevationModelBulkDownloader.BulkDownloadPostProcessor

Enclosing class:

BasicElevationModel

protected static class BasicElevationModel.DownloadPostProcessor
extends AbstractRetrievalPostProcessor

Field Summary

Fields

Modifier and Type	Field and Description
protected BasicElevationModel	elevationModel
protected FileStore	fileStore
protected Tile	tile

Fields inherited from class gov.nasa.worldwind.retrieve.AbstractRetrievalPostProcessor

avList, retriever

Constructor Summary

Constructors

Constructor and Description
DownloadPostProcessor(Tile tile, BasicElevationModel em)
DownloadPostProcessor(Tile tile, BasicElevationModel em, FileStore fileStore)

Method Summary

Modifier and Type	Method and Description
protected File	doGetOutputFile() Abstract method that subclasses must provide to identify the output file for the post-processor's retrieval content.
protected Object	getFileLock() Returns an object that can be used to synchronize writing to the output file.
protected FileStore	getFileStore()
protected ByteBuffer	handleSuccessfulRetrieval() Process the retrieved data if it has been retrieved successfully.
protected ByteBuffer	handleTextContent() Handles Text content.
protected void	markResourceAbsent() Marks the retrieval target absent.
protected boolean	overwriteExistingFile() Indicates whether the retrieved data should be written to the output file if a file of the same name already exists.

Methods inherited from class gov.nasa.worldwind.retrieve.AbstractRetrievalPostProcessor

convertToDDS, getOutputFile, getRetriever, handleApplicationContent, handleContent, handleContentException, handleHTMLContent, handleImageContent, handleInvalidResponseCode, handleUnknownContentType, handleUnsuccessfulRetrieval, handleWMSExceptionContent, handleXMLContent, handleZipContent, isDeleteOnExit, isPrimaryContentType, isWMSException, logTextBuffer, run, saveBuffer, saveBuffer, saveDDS, transformPixels, validateHTTPResponseCode, validateJarResponseCode, validateResponseCode

Methods inherited from class java.lang.Object

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

Field Detail

elevationModel

protected final BasicElevationModel elevationModel

fileStore

protected final FileStore fileStore

tile

protected final Tile tile

Constructor Detail

DownloadPostProcessor

public DownloadPostProcessor(Tile tile,
                             BasicElevationModel em)

DownloadPostProcessor

public DownloadPostProcessor(Tile tile,
                             BasicElevationModel em,
                             FileStore fileStore)

Method Detail

doGetOutputFile

protected File doGetOutputFile()

Description copied from class: AbstractRetrievalPostProcessor

Abstract method that subclasses must provide to identify the output file for the post-processor's retrieval content.

Specified by:

doGetOutputFile in class AbstractRetrievalPostProcessor

Returns:

the output file.

getFileLock

protected Object getFileLock()

Description copied from class: AbstractRetrievalPostProcessor

Returns an object that can be used to synchronize writing to the output file. Superclasses should override this method and return the object used as a lock by other objects that read or otherwise interact with the output file.

Overrides:

getFileLock in class AbstractRetrievalPostProcessor

Returns:

an object to use for read/write synchronization, or null if no lock is needed.

getFileStore

protected FileStore getFileStore()

handleSuccessfulRetrieval

protected ByteBuffer handleSuccessfulRetrieval()

Description copied from class: AbstractRetrievalPostProcessor

Process the retrieved data if it has been retrieved successfully.

Overrides:

handleSuccessfulRetrieval in class AbstractRetrievalPostProcessor

Returns:

a buffer containing the downloaded data, perhaps converted during content handling.

handleTextContent

protected ByteBuffer handleTextContent()
                                throws IOException

Description copied from class: AbstractRetrievalPostProcessor

Handles Text content. If the content type is text/xml, AbstractRetrievalPostProcessor.handleXMLContent() is called. If the content type is text/html, AbstractRetrievalPostProcessor.handleHTMLContent() is called. For all other sub-types the content is logged as a message with level Level.SEVERE.

Overrides:

handleTextContent in class AbstractRetrievalPostProcessor

Returns:

a buffer containing the retrieved text.

Throws:

IOException - if an IO error occurs while processing the data.

markResourceAbsent

protected void markResourceAbsent()

Description copied from class: AbstractRetrievalPostProcessor

Marks the retrieval target absent. Subclasses should override this method if they keep track of absent-resources. The default implementation does nothing.

Overrides:

markResourceAbsent in class AbstractRetrievalPostProcessor

overwriteExistingFile

protected boolean overwriteExistingFile()

Description copied from class: AbstractRetrievalPostProcessor

Indicates whether the retrieved data should be written to the output file if a file of the same name already exists. The default implementation of this method returns false (files are not overwritten).

Overrides:

overwriteExistingFile in class AbstractRetrievalPostProcessor

Returns:

true if an existing file should be overwritten, otherwise false.