Introduce DispatcherProvider

3ds2/src/main/java/com/adyen/checkout/adyen3ds2/internal/data/api/SubmitFingerprintService.kt

@@ -10,15 +10,15 @@ package com.adyen.checkout.adyen3ds2.internal.data.api
 
 import com.adyen.checkout.adyen3ds2.internal.data.model.SubmitFingerprintRequest
 import com.adyen.checkout.adyen3ds2.internal.data.model.SubmitFingerprintResponse
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.data.api.HttpClient
 import com.adyen.checkout.core.internal.data.api.post
 import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 internal class SubmitFingerprintService(
     private val httpClient: HttpClient,
-    private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO,
+    private val coroutineDispatcher: CoroutineDispatcher = DispatcherProvider.IO,
 ) {
 
     suspend fun submitFingerprint(

3ds2/src/main/java/com/adyen/checkout/adyen3ds2/internal/provider/Adyen3DS2ComponentProvider.kt

@@ -39,11 +39,11 @@ import com.adyen.checkout.components.core.internal.ui.model.CommonComponentParam
 import com.adyen.checkout.components.core.internal.ui.model.DropInOverrideParams
 import com.adyen.checkout.components.core.internal.util.get
 import com.adyen.checkout.components.core.internal.util.viewModelFactory
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.data.api.HttpClientFactory
 import com.adyen.checkout.core.internal.util.LocaleProvider
 import com.adyen.checkout.ui.core.internal.DefaultRedirectHandler
 import com.adyen.threeds2.ThreeDS2Service
-import kotlinx.coroutines.Dispatchers
 
 class Adyen3DS2ComponentProvider
 @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
@@ -105,7 +105,7 @@ constructor(
             adyen3DS2Serializer = adyen3DS2DetailsParser,
             redirectHandler = redirectHandler,
             threeDS2Service = ThreeDS2Service.INSTANCE,
-            coroutineDispatcher = Dispatchers.Default,
+            coroutineDispatcher = DispatcherProvider.Default,
             application = application,
             analyticsManager = analyticsManager,
         )

card/src/main/java/com/adyen/checkout/card/internal/data/api/BinLookupService.kt

@@ -11,16 +11,16 @@ package com.adyen.checkout.card.internal.data.api
 import androidx.annotation.RestrictTo
 import com.adyen.checkout.card.internal.data.model.BinLookupRequest
 import com.adyen.checkout.card.internal.data.model.BinLookupResponse
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.data.api.HttpClient
 import com.adyen.checkout.core.internal.data.api.post
 import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
 class BinLookupService(
     private val httpClient: HttpClient,
-    private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO,
+    private val coroutineDispatcher: CoroutineDispatcher = DispatcherProvider.IO,
 ) {
 
     suspend fun makeBinLookup(

cashapppay/src/main/java/com/adyen/checkout/cashapppay/internal/ui/DefaultCashAppPayDelegate.kt

@@ -38,6 +38,7 @@ import com.adyen.checkout.components.core.internal.analytics.GenericEvents
 import com.adyen.checkout.components.core.internal.util.bufferedChannel
 import com.adyen.checkout.components.core.paymentmethod.CashAppPayPaymentMethod
 import com.adyen.checkout.core.AdyenLogLevel
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.exception.CheckoutException
 import com.adyen.checkout.core.exception.ComponentException
 import com.adyen.checkout.core.internal.util.adyenLog
@@ -47,7 +48,6 @@ import com.adyen.checkout.ui.core.internal.ui.ComponentViewType
 import com.adyen.checkout.ui.core.internal.ui.SubmitHandler
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -65,7 +65,7 @@ constructor(
     private val order: OrderRequest?,
     override val componentParams: CashAppPayComponentParams,
     private val cashAppPayFactory: CashAppPayFactory,
-    private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO,
+    private val coroutineDispatcher: CoroutineDispatcher = DispatcherProvider.IO,
 ) : CashAppPayDelegate, ButtonDelegate, CashAppPayListener {
 
     private val inputData = CashAppPayInputData()

checkout-core/src/main/java/com/adyen/checkout/core/DispatcherProvider.kt

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2024 Adyen N.V.
+ *
+ * This file is open source and available under the MIT license. See the LICENSE file for more info.
+ *
+ * Created by ozgur on 16/10/2024.
+ */
+
+package com.adyen.checkout.core
+
+import androidx.annotation.RestrictTo
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.Dispatchers
+
+@RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
+object DispatcherProvider {
+
+    @Suppress("ktlint:standard:property-naming")
+    var Main: CoroutineDispatcher = Dispatchers.Main
+        private set
+
+    @Suppress("ktlint:standard:property-naming")
+    var IO: CoroutineDispatcher = Dispatchers.IO
+        private set
+
+    @Suppress("ktlint:standard:property-naming")
+    var Default: CoroutineDispatcher = Dispatchers.Default
+        private set
+
+    fun setMain(dispatcher: CoroutineDispatcher) {
+        this.Main = dispatcher
+    }
+
+    fun setIO(dispatcher: CoroutineDispatcher) {
+        this.IO = dispatcher
+    }
+
+    fun setDefault(dispatcher: CoroutineDispatcher) {
+        this.Default = dispatcher
+    }
+
+    fun resetMain() {
+        Main = Dispatchers.Main
+    }
+
+    fun resetIO() {
+        IO = Dispatchers.IO
+    }
+
+    fun resetDefault() {
+        Default = Dispatchers.Default
+    }
+
+    fun resetAll() {
+        resetMain()
+        resetIO()
+        resetDefault()
+    }
+}

checkout-core/src/main/java/com/adyen/checkout/core/internal/ui/ImageLoader.kt

@@ -14,9 +14,9 @@ import android.content.pm.ApplicationInfo
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import androidx.annotation.RestrictTo
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.exception.HttpException
 import kotlinx.coroutines.CancellationException
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import okhttp3.OkHttpClient
 import okhttp3.Request
@@ -43,10 +43,10 @@ class DefaultImageLoader(context: Context) : ImageLoader {
         url: String,
         onSuccess: suspend (Bitmap) -> Unit,
         onError: suspend (Throwable) -> Unit
-    ) = withContext(Dispatchers.IO) {
+    ) = withContext(DispatcherProvider.IO) {
         val cachedBitmap = cache[url]
         if (cachedBitmap != null) {
-            withContext(Dispatchers.Main) {
+            withContext(DispatcherProvider.Main) {
                 onSuccess(cachedBitmap)
             }
             return@withContext
@@ -72,11 +72,11 @@ class DefaultImageLoader(context: Context) : ImageLoader {
 
                 cache[url] = bitmap
 
-                withContext(Dispatchers.Main) {
+                withContext(DispatcherProvider.Main) {
                     onSuccess(bitmap)
                 }
             } else {
-                withContext(Dispatchers.Main) {
+                withContext(DispatcherProvider.Main) {
                     onError(HttpException(response.code, response.message, null))
                 }
             }
@@ -85,7 +85,7 @@ class DefaultImageLoader(context: Context) : ImageLoader {
         } catch (e: CancellationException) {
             call.cancel()
         } catch (e: IOException) {
-            withContext(Dispatchers.Main) {
+            withContext(DispatcherProvider.Main) {
                 onError(e)
             }
         }

components-core/src/main/java/com/adyen/checkout/components/core/internal/analytics/DefaultAnalyticsManager.kt

@@ -13,11 +13,11 @@ import com.adyen.checkout.components.core.internal.analytics.data.AnalyticsRepos
 import com.adyen.checkout.components.core.internal.ui.model.AnalyticsParams
 import com.adyen.checkout.components.core.internal.ui.model.AnalyticsParamsLevel
 import com.adyen.checkout.core.AdyenLogLevel
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.util.adyenLog
 import com.adyen.checkout.core.internal.util.runSuspendCatching
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.isActive
@@ -27,7 +27,7 @@ import kotlin.time.Duration.Companion.seconds
 internal class DefaultAnalyticsManager(
     private val analyticsRepository: AnalyticsRepository,
     private val analyticsParams: AnalyticsParams,
-    private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO,
+    private val coroutineDispatcher: CoroutineDispatcher = DispatcherProvider.IO,
 ) : AnalyticsManager {
 
     private var checkoutAttemptIdState: CheckoutAttemptIdState = CheckoutAttemptIdState.NotAvailable

components-core/src/main/java/com/adyen/checkout/components/core/internal/data/api/AnalyticsService.kt

@@ -12,17 +12,17 @@ import androidx.annotation.RestrictTo
 import com.adyen.checkout.components.core.internal.data.model.AnalyticsSetupRequest
 import com.adyen.checkout.components.core.internal.data.model.AnalyticsSetupResponse
 import com.adyen.checkout.components.core.internal.data.model.AnalyticsTrackRequest
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.data.api.HttpClient
 import com.adyen.checkout.core.internal.data.api.post
 import com.adyen.checkout.core.internal.data.model.EmptyResponse
 import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
 class AnalyticsService(
     private val httpClient: HttpClient,
-    private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO,
+    private val coroutineDispatcher: CoroutineDispatcher = DispatcherProvider.IO,
 ) {
 
     internal suspend fun setupAnalytics(

components-core/src/main/java/com/adyen/checkout/components/core/internal/data/api/OrderStatusService.kt

@@ -11,16 +11,16 @@ package com.adyen.checkout.components.core.internal.data.api
 import androidx.annotation.RestrictTo
 import com.adyen.checkout.components.core.internal.data.model.OrderStatusRequest
 import com.adyen.checkout.components.core.internal.data.model.OrderStatusResponse
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.data.api.HttpClient
 import com.adyen.checkout.core.internal.data.api.post
 import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
 class OrderStatusService(
     private val httpClient: HttpClient,
-    private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO,
+    private val coroutineDispatcher: CoroutineDispatcher = DispatcherProvider.IO,
 ) {
 
     internal suspend fun getOrderStatus(

components-core/src/main/java/com/adyen/checkout/components/core/internal/data/api/PublicKeyService.kt

@@ -10,16 +10,16 @@ package com.adyen.checkout.components.core.internal.data.api
 
 import androidx.annotation.RestrictTo
 import com.adyen.checkout.components.core.internal.data.model.PublicKeyResponse
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.data.api.HttpClient
 import com.adyen.checkout.core.internal.data.api.get
 import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
 class PublicKeyService(
     private val httpClient: HttpClient,
-    private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO,
+    private val coroutineDispatcher: CoroutineDispatcher = DispatcherProvider.IO,
 ) {
 
     internal suspend fun getPublicKey(

components-core/src/main/java/com/adyen/checkout/components/core/internal/data/api/StatusRepository.kt

@@ -15,10 +15,10 @@ import com.adyen.checkout.components.core.internal.data.model.StatusResponse
 import com.adyen.checkout.components.core.internal.util.StatusResponseUtils
 import com.adyen.checkout.components.core.internal.util.bufferedChannel
 import com.adyen.checkout.core.AdyenLogLevel
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.util.adyenLog
 import com.adyen.checkout.core.internal.util.runSuspendCatching
 import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.FlowPreview
 import kotlinx.coroutines.cancel
 import kotlinx.coroutines.currentCoroutineContext
@@ -51,7 +51,7 @@ class DefaultStatusRepository(
     private val statusService: StatusService,
     private val clientKey: String,
     private val timeSource: TimeSource = TimeSource.Monotonic,
-    private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO,
+    private val coroutineDispatcher: CoroutineDispatcher = DispatcherProvider.IO,
 ) : StatusRepository {
 
     private var delay: Long = 0

drop-in/src/main/java/com/adyen/checkout/dropin/internal/service/BaseDropInService.kt

@@ -22,6 +22,7 @@ import com.adyen.checkout.components.core.LookupAddress
 import com.adyen.checkout.components.core.StoredPaymentMethod
 import com.adyen.checkout.components.core.internal.util.bufferedChannel
 import com.adyen.checkout.core.AdyenLogLevel
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.util.adyenLog
 import com.adyen.checkout.dropin.AddressLookupDropInServiceResult
 import com.adyen.checkout.dropin.BalanceDropInServiceResult
@@ -31,7 +32,6 @@ import com.adyen.checkout.dropin.DropInServiceResult
 import com.adyen.checkout.dropin.OrderDropInServiceResult
 import com.adyen.checkout.dropin.RecurringDropInServiceResult
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.cancel
 import kotlinx.coroutines.channels.Channel
@@ -46,7 +46,7 @@ abstract class BaseDropInService
 constructor() : Service(), CoroutineScope, BaseDropInServiceInterface, BaseDropInServiceContract {
 
     private val coroutineJob: Job = Job()
-    final override val coroutineContext: CoroutineContext get() = Dispatchers.Main + coroutineJob
+    final override val coroutineContext: CoroutineContext get() = DispatcherProvider.Main + coroutineJob
 
     @Suppress("LeakingThis")
     private val binder = DropInBinder(this)

drop-in/src/main/java/com/adyen/checkout/dropin/internal/ui/DropInViewModel.kt

@@ -31,6 +31,7 @@ import com.adyen.checkout.components.core.internal.ui.model.DropInOverrideParams
 import com.adyen.checkout.components.core.internal.util.bufferedChannel
 import com.adyen.checkout.components.core.paymentmethod.GiftCardPaymentMethod
 import com.adyen.checkout.core.AdyenLogLevel
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.exception.CheckoutException
 import com.adyen.checkout.core.internal.util.adyenLog
 import com.adyen.checkout.dropin.R
@@ -47,7 +48,6 @@ import com.adyen.checkout.giftcard.internal.util.GiftCardBalanceUtils
 import com.adyen.checkout.sessions.core.internal.data.model.SessionDetails
 import com.adyen.checkout.sessions.core.internal.data.model.mapToModel
 import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.receiveAsFlow
@@ -60,7 +60,7 @@ internal class DropInViewModel(
     internal val analyticsManager: AnalyticsManager,
     private val initialDropInParams: DropInParams,
     private val dropInConfigDataGenerator: DropInConfigDataGenerator,
-    private val coroutineDispatcher: CoroutineDispatcher = Dispatchers.IO,
+    private val coroutineDispatcher: CoroutineDispatcher = DispatcherProvider.IO,
 ) : ViewModel() {
 
     private val eventChannel: Channel<DropInActivityEvent> = bufferedChannel()

example-app/src/androidTest/java/com/adyen/checkout/test/rule/IdlingDispatcherRule.kt

@@ -10,6 +10,7 @@ package com.adyen.checkout.test.rule
 
 import androidx.test.espresso.IdlingRegistry
 import androidx.test.espresso.idling.CountingIdlingResource
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.test.util.IdlingResourceDispatcher
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.Dispatchers
@@ -45,6 +46,7 @@ class IdlingDispatcherRule : TestRule {
                     unregister(defaultIdlingResource)
                     unregister(ioIdlingResource)
                 }
+                DispatcherProvider.resetAll()
                 overrideDispatchers(defaultDispatcher, ioDispatcher)
             }
         }
@@ -54,14 +56,7 @@ class IdlingDispatcherRule : TestRule {
         default: CoroutineDispatcher,
         io: CoroutineDispatcher,
     ) {
-        fun setField(name: String, value: CoroutineDispatcher) {
-            Dispatchers::class.java.getDeclaredField(name).apply {
-                isAccessible = true
-                set(Dispatchers, value)
-            }
-        }
-
-        setField("Default", default)
-        setField("IO", io)
+        DispatcherProvider.setDefault(default)
+        DispatcherProvider.setIO(io)
     }
 }

redirect/src/main/java/com/adyen/checkout/redirect/internal/data/api/NativeRedirectService.kt

@@ -8,17 +8,17 @@
 
 package com.adyen.checkout.redirect.internal.data.api
 
+import com.adyen.checkout.core.DispatcherProvider
 import com.adyen.checkout.core.internal.data.api.HttpClient
 import com.adyen.checkout.core.internal.data.api.post
 import com.adyen.checkout.redirect.internal.data.model.NativeRedirectRequest
 import com.adyen.checkout.redirect.internal.data.model.NativeRedirectResponse
 import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 internal class NativeRedirectService(
     private val httpClient: HttpClient,
-    private val dispatcher: CoroutineDispatcher = Dispatchers.IO
+    private val dispatcher: CoroutineDispatcher = DispatcherProvider.IO
 ) {
 
     suspend fun makeNativeRedirect(