/*

 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

// Flexible script object using AbstractJSObject subclass

var AbstractJSObject = Java.type("jdk.nashorn.api.scripting.AbstractJSObject");

// JSObject example that uses a map for properties and

// falls back to with methods on a java object (for missing

// properties

function makeJSObj(map, fallback) {

    return new AbstractJSObject() {

        getMember: function(name) {

            if (map.containsKey(name)) {

                return map.get(name);

            }

            var val = fallback[name];

            if (typeof val == 'function') {

                return function() {

                   var a = arguments;

                   switch (a.length) {

                       case 0: return fallback[name]();

                       case 1: return fallback[name](a[0]);

                       case 2: return fallback[name](a[0], a[1]);

                       case 3: return fallback[name](a[0], a[1], a[2]);

                       case 4: return fallback[name](a[0], a[1], a[2], a[3]);

                   }

                }

            }

        }

    }

}

var m = new java.util.HashMap();

m.put("foo", 42);

m.put("bar", 'hello');

var obj = makeJSObj(m, new java.io.File("."));

print(obj.foo);

print(obj.bar);

print(obj.getAbsolutePath());

print(obj.isDirectory());