Spring Framework example source code file (HttpRequestHandlerAdapter.java)

This example Spring Framework source code file (HttpRequestHandlerAdapter.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

exception, handleradapter, http, httprequesthandler, httprequesthandler, httprequesthandleradapter, httpservletresponse, lastmodified, lastmodified, modelandview, modelandview, object, object, request, response, servlet

The Spring Framework HttpRequestHandlerAdapter.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.web.servlet.mvc;

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

import org.springframework.web.HttpRequestHandler;
import org.springframework.web.servlet.HandlerAdapter;
import org.springframework.web.servlet.ModelAndView;

/**
 * Adapter to use the plain {@link org.springframework.web.HttpRequestHandler}
 * interface with the generic {@link org.springframework.web.servlet.DispatcherServlet}.
 * Supports handlers that implement the {@link LastModified} interface.
 *
 * <p>This is an SPI class, not used directly by application code.
 *
 * @author Juergen Hoeller
 * @since 2.0
 * @see org.springframework.web.servlet.DispatcherServlet
 * @see org.springframework.web.HttpRequestHandler
 * @see LastModified
 * @see SimpleControllerHandlerAdapter
 */
public class HttpRequestHandlerAdapter implements HandlerAdapter {

	public boolean supports(Object handler) {
		return (handler instanceof HttpRequestHandler);
	}

	public ModelAndView handle(HttpServletRequest request, HttpServletResponse response, Object handler)
			throws Exception {

		((HttpRequestHandler) handler).handleRequest(request, response);
		return null;
	}

	public long getLastModified(HttpServletRequest request, Object handler) {
		if (handler instanceof LastModified) {
			return ((LastModified) handler).getLastModified(request);
		}
		return -1L;
	}

}