gov.nasa.worldwindx.examples.util

Class FileStoreDataSet

java.lang.Object

gov.nasa.worldwindx.examples.util.FileStoreDataSet

public class FileStoreDataSet
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	FileStoreDataSet.LeafInfo

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	cacheRootPath
static java.lang.String	DAY
protected java.util.ArrayList<java.io.File>	exclusionList
protected boolean	fileGranularity
static java.lang.String	HOUR
protected java.util.ArrayList<FileStoreDataSet.LeafInfo>	leafDirs
static java.lang.String	MONTH
protected java.io.File	root
protected FileStoreDataSet.LeafInfo[]	sortedLeafDirs
static java.lang.String	WEEK
static java.lang.String	YEAR

Constructor Summary

Constructors

Constructor and Description
FileStoreDataSet(java.io.File root, java.lang.String cacheRootPath)

Method Summary

Modifier and Type	Method and Description
protected static long	computeDirectorySize(java.io.File dir)
protected static long	computeTimeOffset(java.lang.String unit, int interval)
void	delete(boolean echo)
protected void	deleteFiles(java.io.File dir, java.util.List<java.io.File> exclusions, long timeBoundary, boolean echo)
void	deleteOutOfScopeFiles(java.lang.String unit, int interval, boolean echo)
protected static void	findLeaves(java.io.File dir, java.util.ArrayList<FileStoreDataSet.LeafInfo> leaves)
static java.util.List<FileStoreDataSet>	getDataSets(java.io.File cacheRoot) Find all of the data set directories in a cache root.
java.util.List<java.io.File>	getExclusions()
long	getLastModified()
java.lang.String	getName()
long	getOutOfScopeSize(java.lang.String unit, int interval)
java.lang.String	getPath()
long	getSize()
boolean	isFileGranularity()
protected static boolean	isNumeric(java.lang.String s) Determines if a string contains only digits.
protected static boolean	isSingleDataSet(java.io.File[] subDirs) Determines if a list of sub-directories should be treated as a single data set.
protected static java.io.File[]	listDirs(java.io.File parent) List all of the sub-directories in a parent directory.
void	setExclusions(java.lang.Iterable<? extends java.io.File> exclusions)
void	setFileGranularity(boolean fileGranularity)
protected void	update()

Methods inherited from class java.lang.Object

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

Field Detail

cacheRootPath

protected final java.lang.String cacheRootPath

DAY

public static final java.lang.String DAY

See Also:

Constant Field Values

exclusionList

protected java.util.ArrayList<java.io.File> exclusionList

fileGranularity

protected boolean fileGranularity

HOUR

public static final java.lang.String HOUR

See Also:

Constant Field Values

leafDirs

protected java.util.ArrayList<FileStoreDataSet.LeafInfo> leafDirs

MONTH

public static final java.lang.String MONTH

See Also:

Constant Field Values

root

protected final java.io.File root

sortedLeafDirs

protected FileStoreDataSet.LeafInfo[] sortedLeafDirs

WEEK

public static final java.lang.String WEEK

See Also:

Constant Field Values

YEAR

public static final java.lang.String YEAR

See Also:

Constant Field Values

Constructor Detail

FileStoreDataSet

public FileStoreDataSet(java.io.File root,
                        java.lang.String cacheRootPath)

Method Detail

computeDirectorySize

protected static long computeDirectorySize(java.io.File dir)

computeTimeOffset

protected static long computeTimeOffset(java.lang.String unit,
                                        int interval)

delete

public void delete(boolean echo)

deleteFiles

protected void deleteFiles(java.io.File dir,
                           java.util.List<java.io.File> exclusions,
                           long timeBoundary,
                           boolean echo)

deleteOutOfScopeFiles

public void deleteOutOfScopeFiles(java.lang.String unit,
                                  int interval,
                                  boolean echo)

findLeaves

protected static void findLeaves(java.io.File dir,
                                 java.util.ArrayList<FileStoreDataSet.LeafInfo> leaves)

getDataSets

public static java.util.List<FileStoreDataSet> getDataSets(java.io.File cacheRoot)

Find all of the data set directories in a cache root.

Parameters:

cacheRoot - Cache root to search.

Returns:

List of data sets in the specified cache.

getExclusions

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

getLastModified

public long getLastModified()

getName

public java.lang.String getName()

getOutOfScopeSize

public long getOutOfScopeSize(java.lang.String unit,
                              int interval)

getPath

public java.lang.String getPath()

getSize

public long getSize()

isFileGranularity

public boolean isFileGranularity()

isNumeric

protected static boolean isNumeric(java.lang.String s)

Determines if a string contains only digits.

Parameters:

s - String to test.

Returns:

true if s contains only digits.

isSingleDataSet

protected static boolean isSingleDataSet(java.io.File[] subDirs)

Determines if a list of sub-directories should be treated as a single data set. This implementation returns true if all of the sub-directories have numeric names. In this case, the numeric directories are most likely used by the cache implementation to group files in a single data set. The numeric directory names do not provide meaningful grouping to the user.

Parameters:

subDirs - List of sub-directories to test.

Returns:

true if the directories should be treated as a single data set.

listDirs

protected static java.io.File[] listDirs(java.io.File parent)

List all of the sub-directories in a parent directory.

Parameters:

parent - Parent directory to search.

Returns:

All sub-directories under parent.

setExclusions

public void setExclusions(java.lang.Iterable<? extends java.io.File> exclusions)

setFileGranularity

public void setFileGranularity(boolean fileGranularity)

update

protected void update()