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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 7160252 7197662 26 * @summary Checks if events are delivered to a listener 27 * when a child node is added or removed 28 * @run main/othervm -Djava.util.prefs.userRoot=. AddNodeChangeListener 29 */ 30 31 import java.util.prefs.*; 32 33 public class AddNodeChangeListener { 34 35 private static boolean failed = false; 36 private static Preferences userRoot, N2; 37 private static NodeChangeListenerAdd ncla; 38 39 public static void main(String[] args) 40 throws BackingStoreException, InterruptedException 41 { 42 userRoot = Preferences.userRoot(); 43 ncla = new NodeChangeListenerAdd(); 44 userRoot.addNodeChangeListener(ncla); 45 //Should initiate a node added event 46 addNode(); 47 // Should not initiate a node added event 48 addNode(); 49 //Should initate a child removed event 50 removeNode(); 51 52 if (failed) 53 throw new RuntimeException("Failed"); 54 } 55 56 private static void addNode() 57 throws BackingStoreException, InterruptedException 58 { 59 N2 = userRoot.node("N2"); 60 userRoot.flush(); 61 Thread.sleep(3000); 62 if (ncla.getAddNumber() != 1) 63 failed = true; 64 } 65 66 private static void removeNode() 67 throws BackingStoreException, InterruptedException 68 { 69 N2.removeNode(); 70 userRoot.flush(); 71 Thread.sleep(3000); 72 if (ncla.getAddNumber() != 0) 73 failed = true; 74 } 75 76 private static class NodeChangeListenerAdd implements NodeChangeListener { 77 private int totalNode = 0; 78 79 @Override 80 public void childAdded(NodeChangeEvent evt) { 81 totalNode++; 82 } 83 84 @Override 85 public void childRemoved(NodeChangeEvent evt) { 86 totalNode--; 87 } 88 89 public int getAddNumber(){ 90 return totalNode; 91 } 92 } 93 }