it.polimi.dima.mediatracker.controllers

Class StorageManager

java.lang.Object

it.polimi.dima.mediatracker.controllers.StorageManager

public class StorageManager
extends java.lang.Object

Manages creation and deletion of files on the device storage

Constructor Summary

Constructors

Constructor and Description
StorageManager()

Method Summary

Modifier and Type	Method and Description
static void	deleteFileFromInternalStorage(Context context, java.lang.String filename) Deletes a file from internal storage
static JSONObject	getJsonObjectFromUri(Context context, Uri uri) Gets a JSON object from a JSON file located at the given Uri
static void	saveJsonObjectToInternalStorage(java.io.File file, JSONObject jsonObject) Saves a JSON object to the device internal storage

Methods inherited from class java.lang.Object

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

Constructor Detail

StorageManager

public StorageManager()

Method Detail

saveJsonObjectToInternalStorage

public static void saveJsonObjectToInternalStorage(java.io.File file,
                                                   JSONObject jsonObject)

Saves a JSON object to the device internal storage

Parameters:

file - the file where we need to write

jsonObject - the JSON object to be written in the file

getJsonObjectFromUri

public static JSONObject getJsonObjectFromUri(Context context,
                                              Uri uri)
                                       throws JSONException,
                                              java.io.IOException

Gets a JSON object from a JSON file located at the given Uri

Parameters:

context - the context

uri - the file Uri

Returns:

the JSONObject contained in the file

Throws:

JSONException - if the JSON object is not valid

java.io.IOException - if the file cannot be accessed

deleteFileFromInternalStorage

public static void deleteFileFromInternalStorage(Context context,
                                                 java.lang.String filename)

Deletes a file from internal storage

Parameters:

context - activity context

filename - the name of the stored file