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This is a fork of http://sourceforge.net/projects/jpodlib/ as development seems to be frozen. We're providing some bug fixes along with deployments to maven.

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/*
 * Copyright (c) 2007, intarsys consulting GmbH
 *
 * 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 intarsys 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.
 */
package de.intarsys.pdf.pd;

import de.intarsys.pdf.cos.COSBasedObject;
import de.intarsys.pdf.cos.COSName;
import de.intarsys.pdf.cos.COSObject;

/**
 * An abstract implementation of the strategy for computing a signature.
 */
public class PDTransformMethod extends PDObject {
    /**
     * The meta class implementation
     */
    public static class MetaClass extends PDObject.MetaClass {
        protected MetaClass(Class instanceClass) {
            super(instanceClass);
        }

        /*
         * (non-Javadoc)
         *
         * @see de.intarsys.pdf.cos.COSBasedObject.MetaClass#doCreateCOSBasedObject(de.intarsys.pdf.cos.COSObject)
         */
        @Override
        protected COSBasedObject doCreateCOSBasedObject(COSObject object) {
            return getSingleton((COSName) object);
        }

        @Override
        public Class getRootClass() {
            return PDTransformMethod.class;
        }
    }

    public static final COSName DK_DocMDP = COSName.constant("DocMDP");

    public static final COSName DK_UR = COSName.constant("UR");

    public static final COSName DK_FieldMDP = COSName.constant("FieldMDP");

    public static final COSName DK_Identity = COSName.constant("Identity");

    /**
     * The meta class instance
     */
    public static final MetaClass META = new MetaClass(MetaClass.class.getDeclaringClass());

    public static PDTransformMethod getSingleton(COSName name) {
        if (DK_DocMDP.equals(name)) {
            return PDTransformMethodDocMDP.SINGLETON;
        } else if (DK_UR.equals(name)) {
            return PDTransformMethodUR.SINGLETON;
        } else if (DK_FieldMDP.equals(name)) {
            return PDTransformMethodFieldMDP.SINGLETON;
        } else if (DK_Identity.equals(name)) {
            return PDTransformMethodIdentity.SINGLETON;
        } else {
            return null;
        }
    }

    protected PDTransformMethod(COSName name) {
        super(name);
    }
}