/*

 * Copyright (c) 2012, 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

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 * questions.

 */

/*

 * @test

 * @bug 8005065

 * @summary Tests that all arrays in JavaBeans are guarded

 * @author Sergey Malenkov

 */

import java.beans.DefaultPersistenceDelegate;

import java.beans.Encoder;

import java.beans.EventSetDescriptor;

import java.beans.ExceptionListener;

import java.beans.Expression;

import java.beans.Statement;

import java.beans.MethodDescriptor;

import java.beans.ParameterDescriptor;

public class Test8005065 {

    public static void main(String[] args) {

        testDefaultPersistenceDelegate();

        testEventSetDescriptor();

        testMethodDescriptor();

        testStatement();

    }

    private static void testDefaultPersistenceDelegate() {

        Encoder encoder = new Encoder();

        String[] array = { "array" };

        MyDPD dpd = new MyDPD(array);

        dpd.instantiate(dpd, encoder);

        array[0] = null;

        dpd.instantiate(dpd, encoder);

    }

    private static void testEventSetDescriptor() {

        try {

            MethodDescriptor[] array = { new MethodDescriptor(MyDPD.class.getMethod("getArray")) };

            EventSetDescriptor descriptor = new EventSetDescriptor(null, null, array, null, null);

            test(descriptor.getListenerMethodDescriptors());

            array[0] = null;

            test(descriptor.getListenerMethodDescriptors());

            descriptor.getListenerMethodDescriptors()[0] = null;

            test(descriptor.getListenerMethodDescriptors());

        }

        catch (Exception exception) {

            throw new Error("unexpected error", exception);

        }

    }

    private static void testMethodDescriptor() {

        try {

            ParameterDescriptor[] array = { new ParameterDescriptor() };

            MethodDescriptor descriptor = new MethodDescriptor(MyDPD.class.getMethod("getArray"), array);

            test(descriptor.getParameterDescriptors());

            array[0] = null;

            test(descriptor.getParameterDescriptors());

            descriptor.getParameterDescriptors()[0] = null;

            test(descriptor.getParameterDescriptors());

        }

        catch (Exception exception) {

            throw new Error("unexpected error", exception);

        }

    }

    private static void testStatement() {

        Object[] array = { new Object() };

        Statement statement = new Statement(null, null, array);

        test(statement.getArguments());

        array[0] = null;

        test(statement.getArguments());

        statement.getArguments()[0] = null;

        test(statement.getArguments());

    }

    private static <T> void test(T[] array) {

        if (array.length != 1) {

            throw new Error("unexpected array length");

        }

        if (array[0] == null) {

            throw new Error("unexpected array content");

        }

    }

    public static class MyDPD

            extends DefaultPersistenceDelegate

            implements ExceptionListener {

        private final String[] array;

        public MyDPD(String[] array) {

            super(array);

            this.array = array;

        }

        public Expression instantiate(Object instance, Encoder encoder) {

            encoder.setExceptionListener(this);

            return super.instantiate(instance, encoder);

        }

        public String[] getArray() {

            return this.array;

        }

        public void exceptionThrown(Exception exception) {

            throw new Error("unexpected error", exception);

        }

    }

}