| /* |
| * Copyright 2013-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.util; |
| |
| import java.io.IOException; |
| |
| /** |
| * Watches a ProjectFilesystem for file changes using a given WatchService. |
| * Change events are posted to a given EventBus when postEvents is called. |
| * Paths in Event contexts are always relative to the project root. |
| */ |
| public interface ProjectFilesystemWatcher { |
| |
| /** |
| * Processes all pending file system events. These are generally posted to an EventBus passed |
| * to the ProjectFilesystemWatcher constructor. |
| */ |
| public void postEvents() throws IOException, InterruptedException; |
| public void close() throws IOException; |
| } |