| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 flex.messaging.util; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| |
| /** |
| * Used by redeployment manager to monitor for changes to the files. |
| */ |
| public class WatchedObject { |
| private String filename; |
| private long modified; |
| |
| /** |
| * Creates a watched object for the specified file. |
| * |
| * @param filename file to watch |
| * @throws FileNotFoundException when specified file could not be found |
| */ |
| public WatchedObject(String filename) throws FileNotFoundException { |
| this.filename = filename; |
| File file = new File(filename); |
| |
| if (!file.isFile() && !file.isDirectory()) { |
| throw new FileNotFoundException(); |
| } |
| this.modified = file.lastModified(); |
| } |
| |
| /** |
| * Returns true if the watched file has been modified since creation of this |
| * watched object or since the last call to this method. |
| * |
| * @return true if the watched file has been modified since creation of this |
| * watched object or since the last call to this method |
| */ |
| public boolean isUptodate() { |
| boolean uptodate = true; |
| |
| long current = new File(filename).lastModified(); |
| |
| if (Math.abs(current - modified) > 1000) { |
| uptodate = false; |
| } |
| |
| modified = current; |
| |
| return uptodate; |
| } |
| } |