ImageType.java

/**
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.exoplatform.portal.application;

/**
 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
 * @version $Revision$
 */
enum ImageType {

    GIF("gif"), PNG("png"), JPG("jpg");

    private final char x, y, z;

    private final char X, Y, Z;

    private final String format;

    private final String mimeType;

    ImageType(String id) {
        this.x = id.charAt(0);
        this.y = id.charAt(1);
        this.z = id.charAt(2);
        this.X = Character.toUpperCase(x);
        this.Y = Character.toUpperCase(y);
        this.Z = Character.toUpperCase(z);
        this.format = id;
        this.mimeType = "image/" + id;
    }

    public String getFormat() {
        return format;
    }

    public boolean matches(String s) {
        int len = s.length();
        if (len-- > 4) {
            char c = s.charAt(len--);
            if (c == z || c == Z) {
                char b = s.charAt(len--);
                if (b == y || b == Y) {
                    char a = s.charAt(len);
                    if (a == x || a == X) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    public String getMimeType() {
        return mimeType;
    }
}