| /* |
| * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6187118 |
| * @summary Tests encoding of immutable list that creates itself |
| * @author Sergey Malenkov |
| */ |
| |
| import java.beans.Encoder; |
| import java.beans.Expression; |
| import java.beans.PersistenceDelegate; |
| import java.beans.XMLEncoder; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| public final class Test6187118 extends AbstractTest { |
| public static void main(String[] args) { |
| new Test6187118().test(true); |
| } |
| |
| protected ImmutableList<String> getObject() { |
| return new ImmutableList<String>(); |
| } |
| |
| protected ImmutableList<String> getAnotherObject() { |
| return new ImmutableList<String>().add("1").add("2").add("3").add("4"); |
| } |
| |
| protected void initialize(XMLEncoder encoder) { |
| encoder.setPersistenceDelegate( |
| ImmutableList.class, |
| new PersistenceDelegate() { |
| protected boolean mutatesTo(Object oldInstance, Object newInstance) { |
| return oldInstance.equals(newInstance); |
| } |
| |
| protected Expression instantiate(Object oldInstance, Encoder out) { |
| ImmutableList list = (ImmutableList) oldInstance; |
| if (!list.hasEntries()) { |
| return getExpression(oldInstance, ImmutableList.class, "new"); |
| } |
| Object object = list.getLast(); |
| ImmutableList shortenedList = list.removeLast(); |
| return getExpression(oldInstance, shortenedList, "add", object); |
| } |
| |
| private Expression getExpression(Object value, Object target, String method, Object... args) { |
| return new Expression(value, target, method, args); |
| } |
| } |
| ); |
| } |
| |
| public static final class ImmutableList<T> implements Iterable { |
| private final List<T> list = new ArrayList<T>(); |
| |
| public ImmutableList() { |
| } |
| |
| private ImmutableList(Iterable<T> iterable) { |
| for (T object : iterable) { |
| this.list.add(object); |
| } |
| } |
| |
| public Iterator<T> iterator() { |
| return Collections.unmodifiableList(this.list).iterator(); |
| } |
| |
| public ImmutableList<T> add(T object) { |
| ImmutableList<T> list = new ImmutableList<T>(this.list); |
| list.list.add(object); |
| return list; |
| } |
| |
| public ImmutableList<T> removeLast() { |
| ImmutableList<T> list = new ImmutableList<T>(this.list); |
| int size = list.list.size(); |
| if (0 < size) { |
| list.list.remove(size - 1); |
| } |
| return list; |
| } |
| |
| public T getLast() { |
| int size = this.list.size(); |
| return (0 < size) |
| ? this.list.get(size - 1) |
| : null; |
| } |
| |
| public boolean hasEntries() { |
| return 0 < this.list.size(); |
| } |
| |
| public boolean equals(Object object) { |
| if (object instanceof ImmutableList) { |
| ImmutableList list = (ImmutableList) object; |
| return this.list.equals(list.list); |
| } |
| return false; |
| } |
| |
| public int hashCode() { |
| return this.list.hashCode(); |
| } |
| |
| public String toString() { |
| return this.list.toString(); |
| } |
| } |
| } |