001    /*
002     * Jpkg - Java library and tools for operating system package creation.
003     *
004     * Copyright (c) 2007-2008 Three Rings Design, Inc.
005     * All rights reserved.
006     *
007     * Redistribution and use in source and binary forms, with or without
008     * modification, are permitted provided that the following conditions
009     * are met:
010     * 1. Redistributions of source code must retain the above copyright
011     *    notice, this list of conditions and the following disclaimer.
012     * 2. Redistributions in binary form must reproduce the above copyright
013     *    notice, this list of conditions and the following disclaimer in the
014     *    documentation and/or other materials provided with the distribution.
015     * 3. Neither the name of the copyright owner nor the names of contributors
016     *    may be used to endorse or promote products derived from this software
017     *    without specific prior written permission.
018     *
019     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
020     * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
021     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
022     * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
023     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
024     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
025     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
026     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
027     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
028     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
029     * POSSIBILITY OF SUCH DAMAGE.
030     */
031    package com.threerings.antidote.property;
032    
033    import java.io.File;
034    
035    import com.threerings.antidote.field.Field;
036    
037    /**
038     * A {@link BaseProperty} that holds an {@link File} object.
039     */
040    public class FileProperty extends BaseProperty<File>
041    {
042        // from BaseProperty
043        public FileProperty (String name, Field field)
044        {
045            super(name, field);
046        }
047    
048        // from BaseProperty
049        public FileProperty (String name, Field field, File defaultValue)
050        {
051            super(name, field, defaultValue);
052        }
053    
054        @Override // from BaseProperty
055        protected File validateProperty ()
056        {
057            final File check = new File(getRawValue());
058            if (!check.exists()) {
059                appendViolation(new InvalidFileViolation(this, check));
060                return null;
061    
062            } else {
063                return check;
064            }
065        }
066    }