1 /* 2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* @test 27 * @bug 7160252 28 * @summary Checks if events are delivered to a listener 29 * when a child node is added or removed 30 * @run main/othervm -Djava.util.prefs.userRoot=. AddNodeChangeListener 31 */ 32 33 import java.util.prefs.*; 34 35 public class AddNodeChangeListener { 36 37 private static boolean failed = false; 38 private static Preferences userRoot, N2; 39 private static NodeChangeListenerAdd ncla; 40 41 public static void main(String[] args) 42 throws BackingStoreException, InterruptedException 43 { 44 userRoot = Preferences.userRoot(); 45 ncla = new NodeChangeListenerAdd(); 46 userRoot.addNodeChangeListener(ncla); 47 //Should initiate a node added event 48 addNode(); 49 // Should not initiate a node added event 50 addNode(); 51 //Should initate a child removed event 52 removeNode(); 53 54 if (failed) 55 throw new RuntimeException("Failed"); 56 } 57 58 private static void addNode() 59 throws BackingStoreException, InterruptedException 60 { 61 N2 = userRoot.node("N2"); 62 userRoot.flush(); 63 Thread.sleep(3000); 64 if (ncla.getAddNumber() != 1) 65 failed = true; 66 } 67 68 private static void removeNode() 69 throws BackingStoreException, InterruptedException 70 { 71 N2.removeNode(); 72 userRoot.flush(); 73 Thread.sleep(3000); 74 if (ncla.getAddNumber() != 0) 75 failed = true; 76 } 77 78 private static class NodeChangeListenerAdd implements NodeChangeListener { 79 private int totalNode = 0; 80 81 @Override 82 public void childAdded(NodeChangeEvent evt) { 83 totalNode++; 84 } 85 86 @Override 87 public void childRemoved(NodeChangeEvent evt) { 88 totalNode--; 89 } 90 91 public int getAddNumber(){ 92 return totalNode; 93 } 94 } 95 }