de.intarsys.pdf.app.acroform.StandardFormHandlerFactory Maven / Gradle / Ivy

Go to download
/*
 * 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.app.acroform;

import java.util.Map;

import de.intarsys.pdf.pd.PDDocument;
import de.intarsys.tools.attribute.Attribute;

/**
 * The standard implementation for {@link IFormHandlerFactory} creating a
 * {@link StandardFormHandler}.
 * 
 */
public class StandardFormHandlerFactory implements IFormHandlerFactory {

	private static final Attribute ATTR_FORMHANDLER = new Attribute(
			"formhandler");

	/*
	 * (non-Javadoc)
	 * 
	 * @see de.intarsys.pdf.app.acroform.IFormHandlerFactory#createFormHandler(de.intarsys.pdf.pd.PDDocument)
	 */
	synchronized public IFormHandler createFormHandler(PDDocument doc,
			Map options) {
		if (doc == null) {
			return null;
		}
		IFormHandler handler = (IFormHandler) doc
				.getAttribute(ATTR_FORMHANDLER);
		if (handler == null) {
			try {
				handler = new StandardFormHandler(doc);
				doc.setAttribute(ATTR_FORMHANDLER, handler);
			} catch (IllegalArgumentException e) {
				// ignore
			}
		}
		return handler;
	}
}