agorise/bitsy-wallet
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Fix crash in TransfersLoader when changing between night and day mode.

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This commit is contained in:
Severiano Jaramillo 2019-01-31 14:59:40 -06:00
parent c7138c5e22
commit eaa661ba5d
1 changed files with 49 additions and 71 deletions
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120
app/src/main/java/cy/agorise/bitsybitshareswallet/processors/TransfersLoader.kt
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@ -24,10 +24,10 @@ import cy.agorise.graphenej.models.OperationHistory
import cy.agorise.graphenej.operations.TransferOperation
import io.reactivex.android.schedulers.AndroidSchedulers
import io.reactivex.disposables.CompositeDisposable
import io.reactivex.functions.Consumer
import io.reactivex.schedulers.Schedulers
import org.bitcoinj.core.DumpedPrivateKey
import org.bitcoinj.core.ECKey
import java.lang.IllegalArgumentException
import java.util.*
import javax.crypto.AEADBadTagException
@ -35,27 +35,22 @@ import javax.crypto.AEADBadTagException
* This class is responsible for loading the local database with all past transfer operations of the
* currently selected account.
*
* The procedure used to load the database in 3 steps:
*
* 1- Load all transfer operations
* 2- Load all missing times
* 3- Load all missing equivalent times
*
* Since the 'get_relative_account_history' will not provide either timestamps nor equivalent values
* for every transfer, we must first load all historical transfer operations, and then proceed to
* handle those missing columns.
* for every transfer, that has to be handled in other part.
*/
class TransfersLoader(private var mContext: Context?): ServiceConnection {
class TransfersLoader(private var mContext: Context?) {
private val TAG = this.javaClass.simpleName
companion object {
private const val TAG = "TransfersLoader"
/** Constant that specifies if we are on debug mode */
private val DEBUG = false
/** Constant that specifies if we are on debug mode */
private const val DEBUG = false
/* Constant used to fix the number of historical transfers to fetch from the network in one batch */
private val HISTORICAL_TRANSFER_BATCH_SIZE = 100
/* Constant used to fix the number of historical transfers to fetch from the network in one batch */
private const val HISTORICAL_TRANSFER_BATCH_SIZE = 100
private val RESPONSE_GET_RELATIVE_ACCOUNT_HISTORY = 0
private const val RESPONSE_GET_RELATIVE_ACCOUNT_HISTORY = 1
}
private var mDisposables = CompositeDisposable()
@ -77,28 +72,26 @@ class TransfersLoader(private var mContext: Context?): ServiceConnection {
/* Counter used to keep track of the transfer history batch count */
private var historicalTransferCount = 0
// Used to keep track of the current state TODO this may not be needed
private var mState = State.IDLE
/**
* Flag used to keep track of the NetworkService binding state
*/
private var mShouldUnbindNetwork: Boolean = false
private var lastId: Long = 0
/** Flag used to keep track of the NetworkService binding state */
private var mBound: Boolean = false
// Map used to keep track of request and response id pairs
private val responseMap = HashMap<Long, Int>()
/**
* Enum class used to keep track of the current state of the loader
*/
private enum class State {
IDLE,
LOADING_MISSING_TIMES,
LOADING_EQ_VALUES,
CANCELLED,
FINISHED
private val mConnection = object : ServiceConnection {
override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
// We've bound to LocalService, cast the IBinder and get LocalService instance
val binder = service as NetworkService.LocalBinder
mNetworkService = binder.service
mBound = true
// Start the transfers update
startTransfersUpdateProcedure()
}
override fun onServiceDisconnected(name: ComponentName?) {
mBound = false
}
}
init {
@ -106,10 +99,11 @@ class TransfersLoader(private var mContext: Context?): ServiceConnection {
authorityRepository = AuthorityRepository(mContext!!)
val pref = PreferenceManager.getDefaultSharedPreferences(mContext)
val userId = pref.getString(Constants.KEY_CURRENT_ACCOUNT_ID, "")
val userId = pref.getString(Constants.KEY_CURRENT_ACCOUNT_ID, "") ?: ""
if (userId != "") {
mCurrentAccount = UserAccount(userId)
mDisposables.add(authorityRepository!!.getWIF(userId!!, AuthorityType.MEMO.ordinal)
mDisposables.add(
authorityRepository!!.getWIF(userId, AuthorityType.MEMO.ordinal)
.subscribeOn(Schedulers.computation())
.observeOn(AndroidSchedulers.mainThread())
.subscribe { encryptedWIF ->
@ -124,8 +118,7 @@ class TransfersLoader(private var mContext: Context?): ServiceConnection {
mDisposables.add(RxBus.getBusInstance()
.asFlowable()
.observeOn(AndroidSchedulers.mainThread())
.subscribe(Consumer { message ->
if (mState == State.FINISHED) return@Consumer
.subscribe { message ->
if (message is JsonRpcResponse<*>) {
if (message.result is List<*>) {
if (responseMap.containsKey(message.id)) {
@ -143,37 +136,17 @@ class TransfersLoader(private var mContext: Context?): ServiceConnection {
responseMap.clear()
}
}
})
}
)
} else {
// If there is no current user, we should not do anything
mState = State.CANCELLED
onStart()
}
onStart()
}
override fun onServiceDisconnected(name: ComponentName?) {
mShouldUnbindNetwork = false
}
override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
// We've bound to LocalService, cast the IBinder and get LocalService instance
val binder = service as NetworkService.LocalBinder
mNetworkService = binder.service
// Start the transfers update
startTransfersUpdateProcedure()
}
private fun onStart() {
if (mState != State.CANCELLED) {
val intent = Intent(mContext, NetworkService::class.java)
if (mContext!!.bindService(intent, this, Context.BIND_AUTO_CREATE)) {
mShouldUnbindNetwork = true
} else {
Log.e(TAG, "Binding to the network service failed.")
}
// Bind to LocalService
Intent(mContext, NetworkService::class.java).also { intent ->
mContext?.bindService(intent, mConnection, Context.BIND_AUTO_CREATE)
}
}
@ -183,7 +156,7 @@ class TransfersLoader(private var mContext: Context?): ServiceConnection {
private fun startTransfersUpdateProcedure() {
if (DEBUG) {
// If we are in debug mode, we first erase all entries in the 'transfer' table
transferRepository!!.deleteAll()
transferRepository?.deleteAll()
}
mDisposables.add(
transferRepository!!.getCount()
@ -213,7 +186,7 @@ class TransfersLoader(private var mContext: Context?): ServiceConnection {
private fun handleOperationList(operationHistoryList: List<OperationHistory>) {
historicalTransferCount++
val insertedCount = transferRepository!!.insertAll(processOperationList(operationHistoryList))
val insertedCount = transferRepository?.insertAll(processOperationList(operationHistoryList))
// TODO return number of inserted rows
// Log.d(TAG, String.format("Inserted count: %d, list size: %d", insertedCount, operationHistoryList.size))
if (/* insertedCount == 0 && */ operationHistoryList.isEmpty()) {
@ -234,7 +207,7 @@ class TransfersLoader(private var mContext: Context?): ServiceConnection {
private fun loadNextOperationsBatch() {
val stop = historicalTransferCount * HISTORICAL_TRANSFER_BATCH_SIZE
val start = stop + HISTORICAL_TRANSFER_BATCH_SIZE
lastId = mNetworkService!!.sendMessage(
val id = mNetworkService?.sendMessage(
GetRelativeAccountHistory(
mCurrentAccount,
stop,
@ -242,7 +215,7 @@ class TransfersLoader(private var mContext: Context?): ServiceConnection {
start
), GetRelativeAccountHistory.REQUIRED_API
)
responseMap[lastId] = RESPONSE_GET_RELATIVE_ACCOUNT_HISTORY
if (id != null) responseMap[id] = RESPONSE_GET_RELATIVE_ACCOUNT_HISTORY
}
/**
@ -321,10 +294,15 @@ class TransfersLoader(private var mContext: Context?): ServiceConnection {
private fun onDestroy() {
Log.d(TAG, "Destroying TransfersLoader")
if (!mDisposables.isDisposed) mDisposables.dispose()
if (mShouldUnbindNetwork) {
mContext!!.unbindService(this)
mShouldUnbindNetwork = false
try {
if (mBound && mNetworkService != null)
mContext?.unbindService(mConnection)
} catch (e: IllegalArgumentException) {
Log.d(TAG, "Avoid crash related to Service not registered: ${e.message}")
}
mBound = false
mContext = null
mNetworkService = null
}
}