flow4jeditpartfactory.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.designer.editparts;

import net.orthanc.flow4j.designer.model.BooleanTransitionModelPart;
import net.orthanc.flow4j.designer.model.CallFlowletModelPart;
import net.orthanc.flow4j.designer.model.DecisionFlowletLabelModelPart;
import net.orthanc.flow4j.designer.model.DecisionFlowletModelPart;
import net.orthanc.flow4j.designer.model.EndFlowletModelPart;
import net.orthanc.flow4j.designer.model.FlowDiagramModelPart;
import net.orthanc.flow4j.designer.model.FlowletLabelModelPart;
import net.orthanc.flow4j.designer.model.JavaTaskFlowletModelPart;
import net.orthanc.flow4j.designer.model.JoinFlowletModelPart;
import net.orthanc.flow4j.designer.model.JumpFlowletModelPart;
import net.orthanc.flow4j.designer.model.ScriptTaskFlowletModelPart;
import net.orthanc.flow4j.designer.model.StartFlowletModelPart;
import net.orthanc.flow4j.designer.model.TaskFlowletLabelModelPart;
import net.orthanc.flow4j.designer.model.TemplateFlowletLabelModelPart;
import net.orthanc.flow4j.designer.model.TemplateFlowletModelPart;
import net.orthanc.flow4j.designer.model.TransitionModelPart;

import org.eclipse.core.resources.IFile;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.EditPartFactory;

/**
 * @author agreif
 *
 * TODO
 * 
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public class Flow4JEditPartFactory implements EditPartFactory {

	private IFile flowFile;

	/**
	 * Creates the factory instance
	 * @param flowFile the flow file
	 */
	public Flow4JEditPartFactory(IFile flowFile) {
		this.flowFile = flowFile;
	}

	/**
	 * @see org.eclipse.gef.EditPartFactory#createEditPart(org.eclipse.gef.EditPart, java.lang.Object)
	 */
	public EditPart createEditPart(EditPart context, Object model) {
		EditPart child = null;

		if (model instanceof StartFlowletModelPart)
			child = new StartFlowletEditPart();
		else if (model instanceof JavaTaskFlowletModelPart)
			child = new JavaTaskFlowletEditPart();
		else if (model instanceof ScriptTaskFlowletModelPart)
			child = new ScriptTaskFlowletEditPart();
		else if (model instanceof DecisionFlowletModelPart)
			child = new DecisionFlowletEditPart();
		else if (model instanceof JoinFlowletModelPart)
			child = new JoinFlowletEditPart();
		else if (model instanceof CallFlowletModelPart)
			child = new CallFlowletEditPart();
		else if (model instanceof JumpFlowletModelPart)
			child = new JumpFlowletEditPart();
		else if (model instanceof TemplateFlowletModelPart)
			child = new TemplateFlowletEditPart();
		else if (model instanceof EndFlowletModelPart)
			child = new EndFlowletEditPart();
			
		//	order is important
		else if (model instanceof TaskFlowletLabelModelPart)
			child = new JavaTaskFlowletLabelEditPart();
		else if (model instanceof DecisionFlowletLabelModelPart)
			child = new DecisionFlowletLabelEditPart();
		else if (model instanceof TemplateFlowletLabelModelPart)
			child = new TemplateFlowletLabelEditPart();
		else if (model instanceof FlowletLabelModelPart)
			child = new FlowletLabelEditPart();
			
		//	order is important because BooleanTransitionModelPart extends 
		//	TransitionModelPart
		else if (model instanceof BooleanTransitionModelPart)
			child = new BooleanTransitionEditPart();
		else if (model instanceof TransitionModelPart)
			child = new TransitionEditPart();

		//Note that subclasses of FlowDiagramModelPart have already been matched above
		else if (model instanceof FlowDiagramModelPart)
			child = new FlowDiagramEditPart(flowFile);
		else
			System.out.println("Flow4JEditPartFactory.createEditPart() unknown model type: " + model.getClass().getName());
		child.setModel(model);
		
		return child;
	}

}