/* * Copyright (c) 2015-present, Facebook, Inc. * All rights reserved. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. */ package com.facebook.datasource; import com.facebook.common.internal.Supplier; /** * Static utility methods pertaining to the {@link DataSource} interface. */ public class DataSources { private DataSources() { } public static <T> DataSource<T> immediateFailedDataSource(Throwable failure) { SimpleDataSource<T> simpleDataSource = SimpleDataSource.create(); simpleDataSource.setFailure(failure); return simpleDataSource; } public static <T> DataSource<T> immediateDataSource(T result) { SimpleDataSource<T> simpleDataSource = SimpleDataSource.create(); simpleDataSource.setResult(result); return simpleDataSource; } public static <T> Supplier<DataSource<T>> getFailedDataSourceSupplier(final Throwable failure) { return new Supplier<DataSource<T>>() { @Override public DataSource<T> get() { return DataSources.immediateFailedDataSource(failure); } }; } }