abstracttransitionflowletconverter.java

一个java写的business process management系统

/*
 * Copyright (c) 2003-2004, Alexander Greif
 * All rights reserved.
 * 
 * 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 the Flow4J-Eclipse project 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 net.orthanc.flow4j.model.bind.converters;

import net.orthanc.flow4j.model.bind.AbstractTransitionFlowletBind;

import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;

/**
 * @author greifa
 *
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public abstract class AbstractTransitionFlowletConverter implements Converter {

	/* (non-Javadoc)
	 * @see com.thoughtworks.xstream.converters.Converter#marshal(java.lang.Object, com.thoughtworks.xstream.io.HierarchicalStreamWriter, com.thoughtworks.xstream.converters.MarshallingContext)
	 */
	public void marshal(
		Object source,
		HierarchicalStreamWriter writer,
		MarshallingContext context) {

		AbstractTransitionFlowletBind transitionFlowlet =
			(AbstractTransitionFlowletBind) source;
		writer.startNode(getTransitionFlowletElementName());
		
		writer.addAttribute("type", transitionFlowlet.getType());
		writer.addAttribute("index", "" + transitionFlowlet.getIndex());
		writer.addAttribute("anchor", "" + transitionFlowlet.getAnchor());
		
		writer.endNode();
	}

	protected abstract String getTransitionFlowletElementName();

	/* (non-Javadoc)
	 * @see com.thoughtworks.xstream.converters.Converter#unmarshal(com.thoughtworks.xstream.io.HierarchicalStreamReader, com.thoughtworks.xstream.converters.UnmarshallingContext)
	 */
	public Object unmarshal(
		HierarchicalStreamReader reader,
		UnmarshallingContext context) {
		AbstractTransitionFlowletBind transitionFlowlet =
			getNewTransitionFlowletBind();
		transitionFlowlet.setType(reader.getAttribute("type"));
		transitionFlowlet.setIndex(
			Integer.parseInt(reader.getAttribute("index")));
		transitionFlowlet.setAnchor(
			Integer.parseInt(reader.getAttribute("anchor")));

		return transitionFlowlet;
	}

	protected abstract AbstractTransitionFlowletBind getNewTransitionFlowletBind();

}