io.github.privacystreams.utils

Class StorageUtils

java.lang.Object

io.github.privacystreams.utils.StorageUtils

public class StorageUtils
extends java.lang.Object

A helper class to access storage-related functions.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.Object	fileRWMutex

Constructor Summary

Constructors

Constructor and Description
StorageUtils()

Method Summary

Modifier and Type	Method and Description
static java.io.InputStream	getInputStreamAndDelete(java.io.File file) Get the input stream of a file and delete the file.
static java.io.File	getPrivateDir(android.content.Context context, java.lang.String dirPath) Get the directory for the user's private directory.
static java.lang.String	getPrivateRelativePath(android.content.Context context, java.io.File file) Get the relative path of a given file from the private directory.
static java.io.File	getPublicDir(java.lang.String dirPath) Get the directory for the public directory.
static java.lang.String	getPublicRelativePath(java.io.File file) Get the relative path of a given file from the public directory.
static java.lang.String	getRelativePath(java.io.File file, java.io.File folder) Get the relative path from a file to a directory.
static java.io.File	getValidFile(android.content.Context context, java.lang.String filePath, boolean isPublic) Get a valid file of a given file path.
static void	safeDelete(java.io.File file) Delete a file without throw any exception.
static void	writeToFile(java.lang.String content, java.io.File validFile, boolean append)

Methods inherited from class java.lang.Object

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

Field Detail

fileRWMutex

public static final java.lang.Object fileRWMutex

Constructor Detail

StorageUtils

public StorageUtils()

Method Detail

getPublicDir

public static java.io.File getPublicDir(java.lang.String dirPath)

Get the directory for the public directory.

Parameters:

dirPath - the path of dir

Returns:

the directory in public dir

getPublicRelativePath

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

Get the relative path of a given file from the public directory.

Parameters:

file - the file to get path

Returns:

the relative path

getPrivateRelativePath

public static java.lang.String getPrivateRelativePath(android.content.Context context,
                                                      java.io.File file)

Get the relative path of a given file from the private directory.

Parameters:

file - the file to get path

Returns:

the relative path

getPrivateDir

public static java.io.File getPrivateDir(android.content.Context context,
                                         java.lang.String dirPath)

Get the directory for the user's private directory.

Parameters:

dirPath - the path of dir

Returns:

the directory in private dir

getValidFile

public static java.io.File getValidFile(android.content.Context context,
                                        java.lang.String filePath,
                                        boolean isPublic)

Get a valid file of a given file path.

Parameters:

context - a Context instance

filePath - the original file path

isPublic - if true, the valid path will be in external storage (sdcard); if false, the valid path will be in internal storage.

Returns:

the valid file

writeToFile

public static void writeToFile(java.lang.String content,
                               java.io.File validFile,
                               boolean append)

getInputStreamAndDelete

public static java.io.InputStream getInputStreamAndDelete(java.io.File file)

Get the input stream of a file and delete the file.

Parameters:

file - the file to read

Returns:

the InputStream

getRelativePath

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

Get the relative path from a file to a directory. returns null if the file doesn't belong to the folder.

Parameters:

file - the file to get relative path to.

folder - the directory to get relative path from.

Returns:

the relative path, or null if the file doesn't belong to the folder.

safeDelete

public static void safeDelete(java.io.File file)

Delete a file without throw any exception.

Parameters:

file - the file to delete.