content: /*******************************************************************************
   * Copyright (c) 2005, 2008 IBM Corporation and others.
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * which accompanies this distribution, and is available at
   * http://www.eclipse.org/legal/epl-v10.html
   *
   * Contributors:
   *     IBM Corporation - initial API and implementation
   *******************************************************************************/
  package org.eclipse.wst.jsdt.internal.corext.template.java;
  
  import java.util.List;
  
  import org.eclipse.jface.text.templates.TemplateContext;
  import org.eclipse.jface.text.templates.TemplateVariable;
  import org.eclipse.jface.text.templates.TemplateVariableResolver;
  import org.eclipse.wst.jsdt.internal.corext.template.java.CompilationUnitCompletion.Variable;
  import org.eclipse.wst.jsdt.internal.ui.text.template.contentassist.MultiVariable;
  
  
  public class ElementTypeResolver extends TemplateVariableResolver {
  
  	public ElementTypeResolver() {
  	}
  	
  	/*
  	 * @see org.eclipse.jface.text.templates.TemplateVariableResolver#resolve(org.eclipse.jface.text.templates.TemplateVariable, org.eclipse.jface.text.templates.TemplateContext)
  	 * 
  	 */
  	public void resolve(TemplateVariable variable, TemplateContext context) {
  		if (!(variable instanceof MultiVariable)) {
  			super.resolve(variable, context);
  			return;
  		}
  		MultiVariable mv= (MultiVariable) variable;
  		List params= variable.getVariableType().getParams();
  		if (params.isEmpty()) {
  			super.resolve(variable, context);
  			return;
  		}
  		
  		JavaContext jc= (JavaContext) context;
  		String reference= (String) params.get(0);
  		TemplateVariable refVar= jc.getTemplateVariable(reference);
  		if (refVar instanceof JavaVariable) {
  			JavaVariable jvar= (JavaVariable) refVar;
  			resolve(mv, jvar, jc);
  			return;
  		}
  		
  		super.resolve(variable, context);
  	}
  
  	private void resolve(MultiVariable variable, JavaVariable master, JavaContext context) {
  		Object[] choices= master.getChoices();
  		if (choices instanceof Variable[]) {
  			Variable[] variables= (Variable[]) choices;
  
  			for (int i= 0; i < variables.length; i++)
  				variable.setChoices(variables[i], variables[i].getMemberTypeNames());
  
  			context.addDependency(master, variable);
  			variable.setKey(master.getCurrentChoice());
  		} else {
  			super.resolve(variable, context);
  		}
  	}
  }
  