Comments (5)
iamironz
commented on May 25, 2024
Hi! What version of library do you use?
Also one question: what key you use for fetching Persistable from preferences?
It looks like registered Persistable object key differs with key witch has been passed into getPersistable method.
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iamironz
commented on May 25, 2024
As you can see this code part tries to fetch registered Persistable class type for instantiation and deserialization of stored binary data and in your case it just not found after getPersistable invocation because your key from getPersistable does not found inside PersistableRegistry map structure.
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iamironz
commented on May 25, 2024
I can recommend disable all encryption for checking how works simple fetching. Because most of problems is incorrect custom key/value encryption. Also I recommend to use bundled encryption algorithms and different keys for each of.
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huzzoid
commented on May 25, 2024
The original question based on 1.0.0-BETA-2.
Also i have tried 0.9.9.9, and caught another exception:
Caused by: com.ironz.binaryprefs.exception.FileOperationException: java.util.concurrent.ExecutionException: java.lang.ArrayIndexOutOfBoundsException: Can't read out of bounds array (71 bytes > 62 bytes). May be your read/write contract isn't mirror-implemented?
at com.ironz.binaryprefs.task.Completable.completeBlockingUnsafe(Completable.java:44)
at com.ironz.binaryprefs.BinaryPreferences.fetchCache(BinaryPreferences.java:60)
at com.ironz.binaryprefs.BinaryPreferences.<init>(BinaryPreferences.java:40)
at com.ironz.binaryprefs.BinaryPreferencesBuilder.build(BinaryPreferencesBuilder.java:205)
There is getting of my encription keys (this part has never been changed since first implementation):
private val INITIAL_VECTOR = "be or not to be that is the question".toByteArray()
private val SECRET_KEY = "be or not to be that is the question".toByteArray()
val initialVector = Arrays.copyOf(INITIAL_VECTOR, 16)
val secretKey = Arrays.copyOf(SECRET_KEY, 16)
BinaryPreferencesBuilder(context)
.keyEncryption(XorKeyEncryptionImpl(secretKey))
.valueEncryption(AesValueEncryptionImpl(secretKey, initialVector))
My experiment with disabled encription:
Caused by: com.ironz.binaryprefs.exception.FileOperationException: java.util.concurrent.ExecutionException: java.lang.ArrayIndexOutOfBoundsException: Can't read out of bounds array (expected size: LogoPass bytes > disk size: 71 bytes) for 62! keyMay be your read/write contract isn't mirror-implemented or old disk version is not backward compatible with new class version?
at com.ironz.binaryprefs.task.FutureBarrier.completeBlockingUnsafe(FutureBarrier.java:44)
at com.ironz.binaryprefs.BinaryPreferences.fetchCache(BinaryPreferences.java:52)
at com.ironz.binaryprefs.BinaryPreferences.<init>(BinaryPreferences.java:40)
at com.ironz.binaryprefs.BinaryPreferencesBuilder.createInstance(BinaryPreferencesBuilder.java:251)
at com.ironz.binaryprefs.BinaryPreferencesBuilder.build(BinaryPreferencesBuilder.java:226)
As i can see there is migration required, but i'm not sure how to do it correctly. What is "old preferences" and "new preferences" at the docs?
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iamironz
commented on May 25, 2024
"old" - disk version means your old saving protocol for first version of Persistable.
"new" - means actual protocol which tries restore old saved data based on your first protocol version.
If you wanna to use migration for your Persistable you should follow mutual steps as in java.io.Externalizable interface. Read manuals about it.
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Related Issues (20)
- Problem with getting data from Set<String> HOT 5
- Incorrect state of contains method of BinaryPrefs after creation HOT 4
- editor.clear() not clears prefs HOT 4
- Add lazy evaluation for default values HOT 4
- Impossible to use without Android HOT 1
- FileChannel#write is now removed from 28 dp1 api
- External storage sometimes is empty line
- Preferences should be instantiated in the main thread. HOT 8
- Encryption key update HOT 4
- Support for Lists, Sets and Arrays HOT 4
- RuntimeException: Unable to start receiver com.ironz.binaryprefs.dump.DumpReceiver HOT 3
- Can't create preferences directory in /mnt/expand/ HOT 1
- So the inter process part is asynchronized? HOT 1
- Change UnsupportedClassVersionError error to an meaningful
- In-memory cache of byte array is vulnerable for external modifications HOT 3
- 🐞Bug with encryption HOT 3
- Create a ktx module
- Could you release the new version with current changes please? HOT 5
- Clear all prefs at once
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