/* * Copyright 2015-present Facebook, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. You may obtain * a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */ package com.facebook.buck.file; import com.facebook.buck.event.BuckEventBus; import java.io.IOException; import java.net.URI; import java.nio.file.Path; public interface Downloader { /** * Download the given URL and, upon a successful download, place it in {@code output}. Note that * if a {@code Downloader} can't handle the {@link URI#scheme} then {@code false} will be * returned. * * @return Whether or not the download succeeded. * @throws IOException Should an exception be thrown when downloading. */ boolean fetch(BuckEventBus eventBus, URI uri, Path output) throws IOException; }