in.srain.cube.cache

Class DiskFileUtils

java.lang.Object

in.srain.cube.cache.DiskFileUtils

public class DiskFileUtils
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DiskFileUtils.CacheDirInfo

Constructor Summary

Constructors

Constructor and Description
DiskFileUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static DiskFileUtils.CacheDirInfo	getDiskCacheDir(android.content.Context context, java.lang.String absolutePath, int sizeInKB, java.lang.String fallbackRelativePath)
static DiskFileUtils.CacheDirInfo	getDiskCacheDir(android.content.Context context, java.lang.String uniqueName, long requireSpace) Get a usable cache directory (external if available, internal otherwise).
static java.io.File	getExternalCacheDir(android.content.Context context) Get the external application cache directory.
static long	getTotalSpace(java.io.File path)
static long	getUsableSpace(java.io.File path) Check how much usable space is available at a given path.
static long	getUsedSpace(java.io.File path)
static boolean	hasSDCardMounted()
static java.lang.String	readAssert(android.content.Context context, java.lang.String filePath)
static java.lang.String	wantFilesPath(android.content.Context context, boolean externalStorageFirst) external: "/storage/emulated/0/Android/data/in.srain.sample/files" internal: "/data/data/in.srain.sample/files"

Methods inherited from class java.lang.Object

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

Constructor Detail

DiskFileUtils

public DiskFileUtils()

Method Detail

getDiskCacheDir

public static DiskFileUtils.CacheDirInfo getDiskCacheDir(android.content.Context context,
                                         java.lang.String absolutePath,
                                         int sizeInKB,
                                         java.lang.String fallbackRelativePath)

Parameters:

context -

absolutePath - if it's not absolutePath, will be path under cache dir

sizeInKB -

fallbackRelativePath -

Returns:

getDiskCacheDir

public static DiskFileUtils.CacheDirInfo getDiskCacheDir(android.content.Context context,
                                         java.lang.String uniqueName,
                                         long requireSpace)

Get a usable cache directory (external if available, internal otherwise). . Check if media is mounted or storage is built-in, if so, try and use external cache folder otherwise use internal cache folder . If both of them can not meet the requirement, use the bigger one.

Parameters:

context - The context to use

uniqueName - A unique folder name to append to the cache folder

Returns:

The cache folder

getExternalCacheDir

public static java.io.File getExternalCacheDir(android.content.Context context)

Get the external application cache directory.

Parameters:

context - The context to use

Returns:

The external cache folder : /storage/sdcard0/Android/data/com.srain.sdk/cache

getUsableSpace

public static long getUsableSpace(java.io.File path)

Check how much usable space is available at a given path.

Parameters:

path - The path to check

Returns:

The space available in bytes by user, not by root, -1 means path is null, 0 means path is not exist.

getUsedSpace

public static long getUsedSpace(java.io.File path)

getTotalSpace

public static long getTotalSpace(java.io.File path)

Parameters:

path -

Returns:

-1 means path is null, 0 means path is not exist.

hasSDCardMounted

public static boolean hasSDCardMounted()

wantFilesPath

public static java.lang.String wantFilesPath(android.content.Context context,
                             boolean externalStorageFirst)

external: "/storage/emulated/0/Android/data/in.srain.sample/files" internal: "/data/data/in.srain.sample/files"

readAssert

public static java.lang.String readAssert(android.content.Context context,
                          java.lang.String filePath)

Parameters:

context -

filePath - file path relative to assets, like request_init1/search_index.json

Returns: