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/*
* 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();
}
}
}
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