Spring Framework example source code file (SimpleWebApplicationContext.java)

This example Spring Framework source code file (SimpleWebApplicationContext.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

dummythemesource, http, incorrect, incorrect, io, ioexception, localeresolver, modelandview, modelandview, mutablepropertyvalues, mutablepropertyvalues, request, response, servlet, servletexception, servletexception, simplewebapplicationcontext, staticmessagesource, testthrowawaycontroller, util

The Spring Framework SimpleWebApplicationContext.java source code

/*
 * Copyright 2002-2005 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;

import java.io.IOException;
import java.util.Locale;

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

import org.springframework.beans.BeansException;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.context.support.StaticMessageSource;
import org.springframework.ui.context.Theme;
import org.springframework.ui.context.ThemeSource;
import org.springframework.ui.context.support.SimpleTheme;
import org.springframework.ui.context.support.UiApplicationContextUtils;
import org.springframework.web.context.support.StaticWebApplicationContext;
import org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver;
import org.springframework.web.servlet.mvc.Controller;
import org.springframework.web.servlet.mvc.LastModified;
import org.springframework.web.servlet.mvc.SimpleFormController;
import org.springframework.web.servlet.mvc.throwaway.ThrowawayController;
import org.springframework.web.servlet.support.RequestContextUtils;
import org.springframework.web.servlet.theme.AbstractThemeResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.XmlViewResolver;
import org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping;

/**
 * @author Juergen Hoeller
 * @since 21.05.2003
 */
public class SimpleWebApplicationContext extends StaticWebApplicationContext {

	public void refresh() throws BeansException {
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("commandClass", "org.springframework.beans.TestBean");
		pvs.addPropertyValue("formView", "form");
		registerSingleton("/form.do", SimpleFormController.class, pvs);

		registerSingleton("/locale.do", LocaleChecker.class);

		registerPrototype("/throwaway.do", TestThrowawayController.class);

		addMessage("test", Locale.ENGLISH, "test message");
		addMessage("test", Locale.CANADA, "Canadian & test message");
		addMessage("testArgs", Locale.ENGLISH, "test {0} message {1}");
		addMessage("testArgsFormat", Locale.ENGLISH, "test {0} message {1,number,#.##} X");

		registerSingleton(UiApplicationContextUtils.THEME_SOURCE_BEAN_NAME, DummyThemeSource.class);

		registerSingleton("handlerMapping", BeanNameUrlHandlerMapping.class);
		registerSingleton("viewResolver", InternalResourceViewResolver.class);

		pvs = new MutablePropertyValues();
		pvs.addPropertyValue("location", "org/springframework/web/context/WEB-INF/sessionContext.xml");
		registerSingleton("viewResolver2", XmlViewResolver.class, pvs);

		super.refresh();
	}


	public static class LocaleChecker implements Controller, LastModified {

		public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
				throws ServletException, IOException {
			if (!(RequestContextUtils.getWebApplicationContext(request) instanceof SimpleWebApplicationContext)) {
				throw new ServletException("Incorrect WebApplicationContext");
			}
			if (!(RequestContextUtils.getLocaleResolver(request) instanceof AcceptHeaderLocaleResolver)) {
				throw new ServletException("Incorrect LocaleResolver");
			}
			if (!Locale.CANADA.equals(RequestContextUtils.getLocale(request))) {
				throw new ServletException("Incorrect Locale");
			}
			return null;
		}

		public long getLastModified(HttpServletRequest request) {
			return 98;
		}
	}


	public static class DummyThemeSource implements ThemeSource {

		private StaticMessageSource messageSource;

		public DummyThemeSource() {
			this.messageSource = new StaticMessageSource();
			this.messageSource.addMessage("themetest", Locale.ENGLISH, "theme test message");
			this.messageSource.addMessage("themetestArgs", Locale.ENGLISH, "theme test message {0}");
		}

		public Theme getTheme(String themeName) {
			if (AbstractThemeResolver.ORIGINAL_DEFAULT_THEME_NAME.equals(themeName)) {
				return new SimpleTheme(AbstractThemeResolver.ORIGINAL_DEFAULT_THEME_NAME, this.messageSource);
			}
			else {
				return null;
			}
		}
	}


	public static class TestThrowawayController implements ThrowawayController {

		public static int counter = 0;

		private int myInt;

		public TestThrowawayController() {
			counter++;
		}

		public void setMyInt(int myInt) {
			this.myInt = myInt;
		}

		public ModelAndView execute() throws Exception {
			return new ModelAndView("view" + this.myInt);
		}
	}

}