com.atakmap.android.elev.dt2

Class Dt2FileWatcher

java.lang.Object

java.lang.Thread

com.atakmap.android.elev.dt2.Dt2FileWatcher

All Implemented Interfaces:

java.lang.Runnable

public class Dt2FileWatcher
extends java.lang.Thread

Used by the DTED outlines overlay to track DTED files on the device

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Dt2FileWatcher.Listener DTED files updated

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
Dt2FileWatcher(MapView mapView, java.util.List<java.io.File> rootDirs)

Method Summary

Modifier and Type	Method and Description
void	addListener(Dt2FileWatcher.Listener l)
boolean	delete(int level, java.io.File file) Delete all DTED files given a level
boolean	delete(int level, java.lang.String path) Delete all DTED files given a level
void	dispose()
java.util.BitSet	getCoverage(int level) Get coverage set for a specific DTED level
static int	getCoverageIndex(int latitude, int longitude) Get the coverage set index given a latitude and longitude
java.util.BitSet[]	getCoverages() Get all coverage sets
int	getFileCount() Get the total file count in all DTED directories
int	getFileCount(int level, java.lang.String dir) Get file count in directory
java.util.List<java.lang.String>	getFiles(int level, java.lang.String dir) Get a list of files within a cached directory This is faster than calling File.listFiles()
java.util.List<java.io.File>	getFiles(java.lang.String path) Get corresponding file on each root given a relative path
java.util.BitSet	getFullCoverage() Get a coverage set for all DTED levels
static Dt2FileWatcher	getInstance()
static java.lang.String	getRelativePath(java.io.File file) Get a relative path given a file (excludes /atak/ directory)
static java.lang.String	getRelativePath(int level, double lat, double lng) Get the file path relative to the "DTED" directory for a given latitude and longitude i.e.
java.util.List<java.io.File>	getRootDirs() Get a list of all DTED root directories
void	refreshCache(java.io.File file) Refresh the cache for a specific DTED file
void	refreshCache(java.lang.String path, boolean exists) Refresh the cache for a specific DTED file
void	removeListener(Dt2FileWatcher.Listener l)
void	run()
void	scan() Perform a DTED file scan NOTE: Do NOT call this on the main thread - this method can take several seconds to finish
void	start()

Methods inherited from class java.lang.Thread

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

Methods inherited from class java.lang.Object

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

Constructor Detail

Dt2FileWatcher

public Dt2FileWatcher(MapView mapView,
                      java.util.List<java.io.File> rootDirs)

Method Detail

getInstance

public static Dt2FileWatcher getInstance()

start

public void start()

Overrides:

start in class java.lang.Thread

dispose

public void dispose()

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

getRootDirs

public java.util.List<java.io.File> getRootDirs()

Get a list of all DTED root directories

Returns:

Root directories

getFiles

public java.util.List<java.io.File> getFiles(java.lang.String path)

Get corresponding file on each root given a relative path

Parameters:

path - Relative path

Returns:

List of files on each path

getCoverage

public java.util.BitSet getCoverage(int level)

Get coverage set for a specific DTED level

Parameters:

level - DTED level (0 thru 3)

Returns:

Bit set

getCoverages

public java.util.BitSet[] getCoverages()

Get all coverage sets

Returns:

Bit sets

getFullCoverage

public java.util.BitSet getFullCoverage()

Get a coverage set for all DTED levels

Returns:

Bit set

getCoverageIndex

public static int getCoverageIndex(int latitude,
                                   int longitude)

Get the coverage set index given a latitude and longitude

Parameters:

latitude - Latitude

longitude - Longitude

Returns:

Index

getRelativePath

public static java.lang.String getRelativePath(int level,
                                               double lat,
                                               double lng)

Get the file path relative to the "DTED" directory for a given latitude and longitude i.e. getRelativePath(2, 30, -73) = "w073/n30.dt2"

Parameters:

level - DTED resolution level

lat - Latitude in degrees

lng - Longitude in degrees

Returns:

Relative file path

getRelativePath

public static java.lang.String getRelativePath(java.io.File file)

Get a relative path given a file (excludes /atak/ directory)

Parameters:

file - File

Returns:

Path relative to /atak (i.e. "/atak/DTED/w039" -> "DTED/w039")

refreshCache

public void refreshCache(java.lang.String path,
                         boolean exists)

Refresh the cache for a specific DTED file

Parameters:

path - Relative path to DTED file

exists - True if the file exists

refreshCache

public void refreshCache(java.io.File file)

Refresh the cache for a specific DTED file

Parameters:

file - DTED file

getFileCount

public int getFileCount()

Get the total file count in all DTED directories

Returns:

File count

getFiles

public java.util.List<java.lang.String> getFiles(int level,
                                                 java.lang.String dir)

Get a list of files within a cached directory This is faster than calling File.listFiles()

Parameters:

level - DTED level

dir - File directory

Returns:

List of files in the directory

getFileCount

public int getFileCount(int level,
                        java.lang.String dir)

Get file count in directory

Parameters:

level - DTED level

dir - Directory

Returns:

Number of files

delete

public boolean delete(int level,
                      java.io.File file)

Delete all DTED files given a level

Parameters:

level - Level (-1 to delete all)

file - File/directory to delete from

Returns:

True if all files deleted

delete

public boolean delete(int level,
                      java.lang.String path)

Delete all DTED files given a level

Parameters:

level - Level (-1 to delete all)

path - Relative file/directory path to delete from

Returns:

True if all files deleted

scan

public void scan()

Perform a DTED file scan NOTE: Do NOT call this on the main thread - this method can take several seconds to finish

addListener

public void addListener(Dt2FileWatcher.Listener l)

removeListener

public void removeListener(Dt2FileWatcher.Listener l)