MergeFactory.java

package controller.merge.xmi.xclass;

import java.util.ArrayList;

public class MergeFactory {
/***
 * MergeFactory - Returns an instance of an Merge object depending on
 * the merging type. 
 * 
 */
	
	private static MergeFactory mergeFac = null;
	private ArrayList<String> mergeLookUpTable = new ArrayList<String>();
	
	private MergeFactory(){		
		mergeLookUpTable.add("xmiClassDiagram");
		mergeLookUpTable.add("ecoreClassDiagram");
		mergeLookUpTable.add("xmiSequenceDiagram");
	}
	
	public static MergeFactory getInstance(){
		if(mergeFac == null){
			synchronized(MergeFactory.class){
				if(mergeFac == null){
					mergeFac = new MergeFactory();
				}
			}
		}
		return mergeFac;
	}
	
	public MergerIntf createMerge(String diagramType)
	{
		MergerIntf merger = null;
		if (!mergeLookUpTable.contains(diagramType))
		{
			return merger;
		}
		else
		{
			if(diagramType.equals("xmiClassDiagram"))
			{
				//merger = new XmiMergedClass();
			}
			else if(diagramType.equals("ecoreClassDiagram"))
			{
				//merger = new EcoreMergedClass();
			}
			else if(diagramType.equals("xmiSequenceDiagram"))
			{
				//merger = new SequenceMergedClass();
			}
		}
		return merger;
	}
	
}