/*******************************************************************************
 * Copyright (c) 2008, 2010 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.ptp.internal.rdt.core.model;

import java.io.Serializable;

import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.ITemplate;

public class Template implements ITemplate, Serializable {
	private static final long serialVersionUID = 1L;

	private String[] fParameterTypes;
	private String fSignature;
	protected String fName;
	protected String[] fTemplateArgs;
	
	public Template() {
		fName = ""; //$NON-NLS-1$
	}
		
	public Template(String name) {
		fName = name;
	}

	public int getNumberOfTemplateParameters() {
		return fParameterTypes == null ? 0 : fParameterTypes.length;
	}

	public String[] getTemplateParameterTypes() {
		return fParameterTypes;
	}
	
	public String[] getTemplateArguments() {
		return fTemplateArgs;
	}

	/**
	 * Sets the parameter types and template arguments.
	 */
	public void setTemplateInfo(String[] templateParameterTypes, String[] args) {
		if (templateParameterTypes != null)
			fParameterTypes = templateParameterTypes;
		if (args != null) {
			fTemplateArgs= args;
		}
	}

	public String getTemplateSignature() throws CModelException {
		if (fSignature == null || fSignature.length() == 0) {
			StringBuffer sig = new StringBuffer(fName);
			if(getNumberOfTemplateParameters() > 0){
				sig.append("<"); //$NON-NLS-1$
				String[] paramTypes = getTemplateParameterTypes();
				int i = 0;
				sig.append(paramTypes[i++]);
				while (i < paramTypes.length){
					sig.append(", "); //$NON-NLS-1$
					sig.append(paramTypes[i++]);
				}
				sig.append(">"); //$NON-NLS-1$
			}
			else{
				sig.append("<>"); //$NON-NLS-1$
			}
			fSignature = sig.toString();
		}
		return fSignature;
	}

	public void setTemplateParameterTypes(String[] parameterTypes) {
		fParameterTypes = parameterTypes;
	}
}