Examples with ModelSchema com.amplifyframework.core.model.ModelSchema used on opensource projects

Example 56 with ModelSchema

use of com.amplifyframework.core.model.ModelSchema in project amplify-android by aws-amplify.

the class SchemaLoader method loadFromAssetsDirectory.

/**
 * Creates an {@link SchemaProvider} by loading schema JSON files from the
 * ./assets directory.
 * @param assetsDirectoryPath Directory under ./assets, e.g., "schemas/commentsblog".
 * @return A SchemaProvider that vends {@link ModelSchema}, each of which was derived
 *         from a schema JSON
 */
@NonNull
static SchemaProvider loadFromAssetsDirectory(@SuppressWarnings("SameParameterValue") String assetsDirectoryPath) {
    List<ModelSchema> schemas = new ArrayList<>();
    Gson gson = GsonFactory.instance();
    for (String fileName : Assets.list(assetsDirectoryPath)) {
        schemas.add(gson.fromJson(Assets.readAsString(fileName), ModelSchema.class));
    }
    return SchemaProvider.of(schemas.toArray(new ModelSchema[0]));
}

Example 57 with ModelSchema

use of com.amplifyframework.core.model.ModelSchema in project amplify-android by aws-amplify.

the class SchemaProvider method from.

/**
 * Creates a SchemaProvider by extracting {@link ModelSchema} from the provided
 * {@link ModelProvider}.
 * @param modelOnlyProvider A provider which provides only models
 * @return A provider which provides only schema
 */
@NonNull
static SchemaProvider from(@NonNull ModelProvider modelOnlyProvider) throws AmplifyException {
    Objects.requireNonNull(modelOnlyProvider);
    Map<String, ModelSchema> schemas = new HashMap<>();
    for (Class<? extends Model> clazz : modelOnlyProvider.models()) {
        ModelSchema schema = ModelSchema.fromModelClass(clazz);
        schemas.put(schema.getName(), schema);
    }
    return new SchemaProvider(randomVersion(), schemas);
}

Example 58 with ModelSchema

use of com.amplifyframework.core.model.ModelSchema in project amplify-android by aws-amplify.

the class MutationPersistenceInstrumentationTest method deletionIsObservedForPersistentRecord.

/**
 * When an {@link PendingMutation.PersistentRecord} is deleted from the DataStore, we will expect
 * to see an event on item consumer of {@link LocalStorageAdapter#observe(Consumer, Consumer, Action)}.
 * @throws DataStoreException from storage item change, or on failure to manipulate I/O to DataStore
 */
@Test
public void deletionIsObservedForPersistentRecord() throws DataStoreException {
    // We are observing a stream of changes to models.
    // In this test, the <? extends Model> type happens to be PersistentRecord (itself, implementing Model.)
    TestObserver<StorageItemChange<? extends Model>> storageObserver = storage.observe().test();
    BlogOwner beatrice = BlogOwner.builder().name("Beatrice Stone").build();
    ModelSchema schema = schemaRegistry.getModelSchemaForModelClass(BlogOwner.class);
    PendingMutation<BlogOwner> createBeatrice = PendingMutation.creation(beatrice, schema);
    PendingMutation.PersistentRecord createBeatriceRecord = converter.toRecord(createBeatrice);
    storage.save(createBeatriceRecord);
    // Assert that we do observe the PersistentRecord being saved ...
    assertEquals(createBeatriceRecord, storageObserver.awaitCount(1).values().get(0).item());
    storageObserver.dispose();
    TestObserver<StorageItemChange<? extends Model>> deletionObserver = storage.observe().test();
    // Try to delete Beatrice's record.
    storage.delete(createBeatriceRecord);
    // Should receive a notification of the deletion on the observer.
    // The notification refers to the deleted item, in its contents.
    assertEquals(createBeatriceRecord, deletionObserver.awaitCount(1).values().get(0).item());
    deletionObserver.dispose();
}

Example 59 with ModelSchema

use of com.amplifyframework.core.model.ModelSchema in project amplify-android by aws-amplify.

the class MutationPersistenceInstrumentationTest method adapterCanSaveAndQueryPersistentRecords.

/**
 * The adapter must be able to save a {@link PendingMutation.PersistentRecord}.
 * When we query the adapter for that same {@link PendingMutation.PersistentRecord},
 * we will expect to find an exact replica of the one we had saved.
 * @throws DataStoreException from storage item change, or on failure to manipulate I/O to DataStore
 */
@Test
public void adapterCanSaveAndQueryPersistentRecords() throws DataStoreException {
    final BlogOwner tonyDaniels = BlogOwner.builder().name("Tony Daniels").build();
    ModelSchema schema = schemaRegistry.getModelSchemaForModelClass(BlogOwner.class);
    PendingMutation<BlogOwner> originalTonyCreation = PendingMutation.creation(tonyDaniels, schema);
    // Save the creation mutation for Tony, as a PersistentRecord object.
    PendingMutation.PersistentRecord originalTonyCreationAsRecord = converter.toRecord(originalTonyCreation);
    storage.save(originalTonyCreationAsRecord);
    // Now, lookup what PersistentRecord we have in the storage.
    List<PendingMutation.PersistentRecord> recordsInStorage = storage.query(PendingMutation.PersistentRecord.class);
    // There should be 1, and it should be the original creation for Tony.
    assertEquals(1, recordsInStorage.size());
    PendingMutation.PersistentRecord firstRecordFoundInStorage = recordsInStorage.get(0);
    assertEquals(originalTonyCreationAsRecord, firstRecordFoundInStorage);
    // After we convert back from PersistentRecord, we should get back a copy of
    // what we created above
    PendingMutation<BlogOwner> reconstructedCreationOfTony = converter.fromRecord(firstRecordFoundInStorage);
    assertEquals(originalTonyCreation, reconstructedCreationOfTony);
}

Example 60 with ModelSchema

use of com.amplifyframework.core.model.ModelSchema in project amplify-android by aws-amplify.

the class MutationPersistenceInstrumentationTest method updatesAreObservedForPersistentRecords.

/**
 * When {@link LocalStorageAdapter#save(Model, StorageItemChange.Initiator, QueryPredicate, Consumer, Consumer)}
 * is called to save a {@link PendingMutation.PersistentRecord}, we should expect to observe a change event
 * /containing/ that record within it. It will be received by the value consumer of
 * {@link LocalStorageAdapter#observe(Consumer, Consumer, Action)}.
 *
 * Similarly, when we update the {@link PendingMutation.PersistentRecord} that we had just saved,
 * we should see an update notification on the subscription consumer. The type will be
 * StorageItemChange, and inside of it ill be a reference to the {@link PendingMutation.PersistentRecord}.
 *
 * @throws DataStoreException from storage item change, or on failure to manipulate I/O to DataStore
 */
@Test
public void updatesAreObservedForPersistentRecords() throws DataStoreException {
    // Establish a subscription to listen for storage change records
    TestObserver<StorageItemChange<? extends Model>> storageObserver = storage.observe().test();
    // Create a record for Joe, and a change to save him into storage
    BlogOwner joeLastNameMisspelled = BlogOwner.builder().name("Joe Sweeneyy").build();
    ModelSchema schema = schemaRegistry.getModelSchemaForModelClass(BlogOwner.class);
    PendingMutation<BlogOwner> createJoeWrongLastName = PendingMutation.creation(joeLastNameMisspelled, schema);
    // Save our saveJoeWrongLastName change item, as a PersistentRecord.
    PendingMutation.PersistentRecord createJoeWrongLastNameAsRecord = converter.toRecord(createJoeWrongLastName);
    storage.save(createJoeWrongLastNameAsRecord);
    // Now, suppose we have to update that pending mutation. Maybe it contained a bad item payload.
    BlogOwner joeWithLastNameFix = BlogOwner.builder().name("Joe Sweeney").id(joeLastNameMisspelled.getId()).build();
    PendingMutation<BlogOwner> createJoeCorrectLastName = PendingMutation.creation(joeWithLastNameFix, schema);
    // Save an update (same model type, same unique ID) to the mutation we saved previously.
    PendingMutation.PersistentRecord createJoeCorrectLastNameAsRecord = converter.toRecord(createJoeCorrectLastName);
    storage.save(createJoeCorrectLastNameAsRecord);
    // Our observer got the records to save Joe with wrong age, and also to save joe with right age
    assertEquals(Arrays.asList(createJoeWrongLastNameAsRecord, createJoeCorrectLastNameAsRecord), Observable.fromIterable(storageObserver.awaitCount(2).values()).map(StorageItemChange::item).toList().blockingGet());
    storageObserver.dispose();
}