VASSAL.tools.filechooser.ExtensionFileFilter.java Source code

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Here is the source code for VASSAL.tools.filechooser.ExtensionFileFilter.java

Source

/*
 * $Id$
 *
 * Copyright (c) 2006-2008 by Joel Uckelman
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License (LGPL) as published by the Free Software Foundation.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, copies are available
 * at http://www.opensource.org.
 */
package VASSAL.tools.filechooser;

import java.io.File;

import org.apache.commons.lang.StringUtils;

import VASSAL.tools.ArrayUtils;

/**
 * A generic by-extension FileFilter.
 *
 * @author Joel Uckelman
 */
public class ExtensionFileFilter extends FileFilter {
    private final String[] types;
    private final String desc;

    /**
     * @param desc The description of this filter.
     * @param types A list of the extensions accepted by this filter.
     */
    public ExtensionFileFilter(String desc, String[] types) {
        super();
        this.desc = desc + " (*" + StringUtils.join(types, ", *") + ")";
        this.types = ArrayUtils.copyOf(types);
    }

    /**
     * @return Whether the given file is accepted by this filter.
     */
    public boolean accept(File f) {
        if (f.isDirectory())
            return true;
        final String name = f.getName().toLowerCase();
        for (String type : types) {
            if (name.endsWith(type))
                return true;
        }
        return false;
    }

    /**
     * @return The description of this filter.
     */
    public String getDescription() {
        return desc;
    }
}