org.eclipse.rdf4j.common.webapp.CommonValuesHandlerInterceptor Maven / Gradle / Ivy

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/*******************************************************************************
 * Copyright (c) 2015 Eclipse RDF4J contributors, Aduna, and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Distribution License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *******************************************************************************/
package org.eclipse.rdf4j.common.webapp;

import java.util.Calendar;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

/**
 * Interceptor that inserts some commonly used values into the model. The inserted values are: - path, equal
 * to request.getContextPath() (e.g. /context) - basePath, equal to the fully qualified context path (e.g.
 * http://www.example.com/context/) - currentYear, equal to the current year
 * 
 * @author Herko ter Horst
 */
public class CommonValuesHandlerInterceptor implements HandlerInterceptor {

	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
			Exception ex)
	{
		// nop
	}

	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
			ModelAndView mav)
	{
		mav.addObject("path", request.getContextPath());
		mav.addObject("basePath", request.getScheme() + "://" + request.getServerName() + ":"
				+ request.getServerPort() + request.getContextPath() + "/");
		mav.addObject("currentYear", Calendar.getInstance().get(Calendar.YEAR));
	}

	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
		throws Exception
	{
		return true;
	}

}