Examples with ModelWithMetadata com.amplifyframework.datastore.appsync.ModelWithMetadata used on opensource projects

Example 16 with ModelWithMetadata

use of com.amplifyframework.datastore.appsync.ModelWithMetadata in project amplify-android by aws-amplify.

the class SubscriptionProcessorTest method arrangeDataEmittingSubscription.

@SuppressWarnings("SameParameterValue")
private static <T extends Model> void arrangeDataEmittingSubscription(AppSync appSync, ModelSchema modelSchema, SubscriptionType subscriptionType, GraphQLResponse<ModelWithMetadata<T>> response) throws DataStoreException {
    Answer<Cancelable> answer = invocation -> {
        final int startConsumerIndex = 1;
        Consumer<String> onStart = invocation.getArgument(startConsumerIndex);
        onStart.accept(RandomString.string());
        final int dataConsumerIndex = 2;
        Consumer<GraphQLResponse<ModelWithMetadata<T>>> onData = invocation.getArgument(dataConsumerIndex);
        onData.accept(response);
        return new NoOpCancelable();
    };
    arrangeSubscription(appSync, answer, modelSchema, subscriptionType);
}

Example 17 with ModelWithMetadata

use of com.amplifyframework.datastore.appsync.ModelWithMetadata in project amplify-android by aws-amplify.

the class SyncProcessorTest method syncAndExpect.

private void syncAndExpect(int numPages, int maxSyncRecords) throws AmplifyException, InterruptedException {
    initSyncProcessor(maxSyncRecords);
    // Arrange a subscription to the storage adapter. We're going to watch for changes.
    // We expect to see content here as a result of the SyncProcessor applying updates.
    final TestObserver<StorageItemChange<? extends Model>> adapterObserver = storageAdapter.observe().test();
    // Arrange: return some responses for the sync() call on the RemoteModelState
    AppSyncMocking.SyncConfigurator configurator = AppSyncMocking.sync(appSync);
    List<ModelWithMetadata<BlogOwner>> expectedResponseItems = new ArrayList<>();
    String token = null;
    for (int pageIndex = 0; pageIndex < numPages; pageIndex++) {
        String nextToken = pageIndex < numPages - 1 ? RandomString.string() : null;
        ModelWithMetadata<BlogOwner> randomBlogOwner = randomBlogOwnerWithMetadata();
        configurator.mockSuccessResponse(BlogOwner.class, token, nextToken, randomBlogOwner);
        if (expectedResponseItems.size() < maxSyncRecords) {
            expectedResponseItems.add(randomBlogOwner);
        }
        token = nextToken;
    }
    // Act: Call hydrate, and await its completion - assert it completed without error
    TestObserver<ModelWithMetadata<? extends Model>> hydrationObserver = TestObserver.create();
    syncProcessor.hydrate().subscribe(hydrationObserver);
    // Wait 2 seconds, or 1 second per 100 pages, whichever is greater
    long timeoutMs = Math.max(OP_TIMEOUT_MS, TimeUnit.SECONDS.toMillis(numPages / 100));
    assertTrue(hydrationObserver.await(timeoutMs, TimeUnit.MILLISECONDS));
    hydrationObserver.assertNoErrors();
    hydrationObserver.assertComplete();
    // Since hydrate() completed, the storage adapter observer should see some values.
    // There should be a total of four changes on storage adapter
    // A model and a metadata save for each of the two BlogOwner-type items
    // Additionally, there should be 4 last sync time records, one for each of the
    // models managed by the system.
    adapterObserver.awaitCount(expectedResponseItems.size() * 2 + 4);
    // Validate the changes emitted from the storage adapter's observe().
    assertEquals(// Expect items as described above.
    Observable.fromIterable(expectedResponseItems).flatMap(modelWithMutation -> Observable.fromArray(modelWithMutation.getModel(), modelWithMutation.getSyncMetadata())).toSortedList(SortByModelId::compare).blockingGet(), // Actually...
    Observable.fromIterable(adapterObserver.values()).map(StorageItemChange::item).filter(item -> !LastSyncMetadata.class.isAssignableFrom(item.getClass())).toSortedList(SortByModelId::compare).blockingGet());
    // Lastly: validate the current contents of the storage adapter.
    // There should be 2 BlogOwners, and 2 MetaData records.
    List<? extends Model> itemsInStorage = storageAdapter.query(modelProvider);
    assertEquals(itemsInStorage.toString(), expectedResponseItems.size() * 2 + modelProvider.models().size(), itemsInStorage.size());
    assertEquals(// Expect the 4 items for the bloggers (2 models and their metadata)
    Observable.fromIterable(expectedResponseItems).flatMap(blogger -> Observable.fromArray(blogger.getModel(), blogger.getSyncMetadata())).toList().map(HashSet::new).blockingGet(), Observable.fromIterable(storageAdapter.query(modelProvider)).filter(item -> !LastSyncMetadata.class.isAssignableFrom(item.getClass())).toList().map(HashSet::new).blockingGet());
    adapterObserver.dispose();
    hydrationObserver.dispose();
}

Example 18 with ModelWithMetadata

use of com.amplifyframework.datastore.appsync.ModelWithMetadata in project amplify-android by aws-amplify.

the class ConflictResolverTest method conflictIsResolvedByRetryingLocalData.

/**
 * When the user elects to retry the mutation using the local copy of the data,
 * the following is expected:
 * 1. The AppSync API is invoked, with the local mutation data
 * 2. We assume that the AppSync API will respond differently
 *    upon retry (TODO: why? Will the user be expected to manually
 *    intervene and modify the backend state somehow?)
 * @throws DataStoreException On failure to arrange metadata into storage
 */
@Test
public void conflictIsResolvedByRetryingLocalData() throws DataStoreException {
    // Arrange for the user-provided conflict handler to always request local retry.
    when(configurationProvider.getConfiguration()).thenReturn(DataStoreConfiguration.builder().conflictHandler(DataStoreConflictHandler.alwaysRetryLocal()).build());
    // Arrange a pending mutation that includes the local data
    BlogOwner localModel = BlogOwner.builder().name("Local Blogger").build();
    PendingMutation<BlogOwner> mutation = PendingMutation.update(localModel, schema);
    // Arrange server state for the model, in conflict to local data
    BlogOwner serverModel = localModel.copyOfBuilder().name("Server Blogger").build();
    Temporal.Timestamp now = Temporal.Timestamp.now();
    ModelMetadata metadata = new ModelMetadata(serverModel.getId(), false, 4, now);
    ModelWithMetadata<BlogOwner> serverData = new ModelWithMetadata<>(serverModel, metadata);
    // Arrange a hypothetical conflict error from AppSync
    AppSyncConflictUnhandledError<BlogOwner> unhandledConflictError = AppSyncConflictUnhandledErrorFactory.createUnhandledConflictError(serverData);
    // Assume that the AppSync call succeeds this time.
    ModelWithMetadata<BlogOwner> versionFromAppSyncResponse = new ModelWithMetadata<>(localModel, metadata);
    AppSyncMocking.update(appSync).mockSuccessResponse(localModel, metadata.getVersion(), versionFromAppSyncResponse);
    // Act: when the resolver is invoked, we expect the resolved version
    // to include the server's metadata, but with the local data.
    resolver.resolve(mutation, unhandledConflictError).test().awaitDone(TIMEOUT_SECONDS, TimeUnit.SECONDS).assertValue(versionFromAppSyncResponse);
    // The handler should have called up to AppSync to update hte model
    verify(appSync).update(eq(localModel), any(), eq(metadata.getVersion()), any(), any());
}

Example 19 with ModelWithMetadata

use of com.amplifyframework.datastore.appsync.ModelWithMetadata in project amplify-android by aws-amplify.

the class ConflictResolverTest method conflictIsResolvedByRetryingLocalDataWithSerializedModel.

/**
 * When the user elects to retry the mutation using the local copy of the data,
 * the following is expected:
 * 1. The AppSync API is invoked, with the local mutation data
 * 2. We assume that the AppSync API will respond differently
 *    upon retry
 * @throws AmplifyException On failure to arrange metadata into storage
 */
@Test
public void conflictIsResolvedByRetryingLocalDataWithSerializedModel() throws AmplifyException {
    // Arrange for the user-provided conflict handler to always request local retry.
    when(configurationProvider.getConfiguration()).thenReturn(DataStoreConfiguration.builder().conflictHandler(DataStoreConflictHandler.alwaysRetryLocal()).build());
    // Arrange a pending mutation that includes the local data
    BlogOwner localModel = BlogOwner.builder().name("Local Blogger").build();
    Map<String, Object> ownerData = new HashMap<>();
    ownerData.put("id", localModel.getId());
    ownerData.put("name", localModel.getName());
    SerializedModel serializedOwner = SerializedModel.builder().serializedData(ownerData).modelSchema(ModelSchema.fromModelClass(BlogOwner.class)).build();
    PendingMutation<SerializedModel> mutation = PendingMutation.update(serializedOwner, schema);
    // Arrange server state for the model, in conflict to local data
    BlogOwner serverModel = localModel.copyOfBuilder().name("Server Blogger").build();
    Temporal.Timestamp now = Temporal.Timestamp.now();
    ModelMetadata metadata = new ModelMetadata(serverModel.getId(), false, 4, now);
    ModelWithMetadata<SerializedModel> serverData = new ModelWithMetadata<>(serializedOwner, metadata);
    // Arrange a hypothetical conflict error from AppSync
    AppSyncConflictUnhandledError<SerializedModel> unhandledConflictError = AppSyncConflictUnhandledErrorFactory.createUnhandledConflictError(serverData);
    // Assume that the AppSync call succeeds this time.
    ModelWithMetadata<BlogOwner> versionFromAppSyncResponse = new ModelWithMetadata<>(localModel, metadata);
    AppSyncMocking.update(appSync).mockSuccessResponse(localModel, metadata.getVersion(), versionFromAppSyncResponse);
    // Act: when the resolver is invoked, we expect the resolved version
    // to include the server's metadata, but with the local data.
    resolver.resolve(mutation, unhandledConflictError).test();
    // The handler should have called AppSync to update the model
    verify(appSync).update(eq(localModel), any(), eq(metadata.getVersion()), any(), any());
}

Example 20 with ModelWithMetadata

use of com.amplifyframework.datastore.appsync.ModelWithMetadata in project amplify-android by aws-amplify.

the class ConflictResolverTest method conflictIsResolvedByRetryingWithCustomModel.

/**
 * When the user elects to retry with a custom model, and that model
 * is not null, it means to try an update mutation against AppSync.
 * We expect:
 * 1. The AppSync API is invoked with an update mutation request.
 * @throws DataStoreException upon failure to arrange metadata into storage
 */
@Test
public void conflictIsResolvedByRetryingWithCustomModel() throws DataStoreException {
    // Arrange local model
    BlogOwner localModel = BlogOwner.builder().name("Local model").build();
    PendingMutation<BlogOwner> mutation = PendingMutation.update(localModel, schema);
    // Arrange a server model
    BlogOwner remoteModel = localModel.copyOfBuilder().name("Remote model").build();
    Temporal.Timestamp now = Temporal.Timestamp.now();
    ModelMetadata remoteMetadata = new ModelMetadata(remoteModel.getId(), false, 4, now);
    ModelWithMetadata<BlogOwner> remoteData = new ModelWithMetadata<>(remoteModel, remoteMetadata);
    // Arrange an unhandled conflict error based on the server data
    AppSyncConflictUnhandledError<BlogOwner> unhandledConflictError = AppSyncConflictUnhandledErrorFactory.createUnhandledConflictError(remoteData);
    // Arrange a conflict handler that returns a custom model
    BlogOwner customModel = localModel.copyOfBuilder().name("Custom model").build();
    when(configurationProvider.getConfiguration()).thenReturn(DataStoreConfiguration.builder().conflictHandler(RetryWithModelHandler.create(customModel)).build());
    // When the AppSync update API is called, return a mock response
    ModelMetadata metadata = new ModelMetadata(customModel.getId(), false, remoteMetadata.getVersion(), now);
    ModelWithMetadata<BlogOwner> responseData = new ModelWithMetadata<>(customModel, metadata);
    AppSyncMocking.update(appSync).mockSuccessResponse(customModel, remoteMetadata.getVersion(), responseData);
    // When the resolver is called, the AppSync update API should be called,
    // and the resolver should return its response data.
    resolver.resolve(mutation, unhandledConflictError).test().awaitDone(TIMEOUT_SECONDS, TimeUnit.SECONDS).assertValue(responseData);
    // Verify that the update API was invoked
    verify(appSync).update(eq(customModel), any(), eq(remoteMetadata.getVersion()), any(), any());
}