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Spring Framework example source code file (DelegatingFilterProxyTests.java)

This example Spring Framework source code file (DelegatingFilterProxyTests.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

delegatingfilterproxy, delegatingfilterproxy, io, ioexception, mockfilter, mockfilter, mockfilterconfig, mockhttpservletrequest, mockhttpservletrequest, mockhttpservletresponse, mockhttpservletresponse, mockservletcontext, servlet, servletcontext, servletexception, staticwebapplicationcontext

The Spring Framework DelegatingFilterProxyTests.java source code

/* Copyright 2004, 2005 Acegi Technology Pty Limited
 *
 * 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.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import junit.framework.TestCase;

import org.springframework.mock.web.MockFilterConfig;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.mock.web.MockServletContext;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.StaticWebApplicationContext;

/**
 * @author Juergen Hoeller
 * @since 08.05.2005
 */
public class DelegatingFilterProxyTests extends TestCase {

	public void testDelegatingFilterProxy() throws ServletException, IOException {
		ServletContext sc = new MockServletContext();

		StaticWebApplicationContext wac = new StaticWebApplicationContext();
		wac.setServletContext(sc);
		wac.registerSingleton("targetFilter", MockFilter.class);
		wac.refresh();
		sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);

		MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");

		MockFilterConfig proxyConfig = new MockFilterConfig(sc);
		proxyConfig.addInitParameter("targetBeanName", "targetFilter");
		DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
		filterProxy.init(proxyConfig);

		MockHttpServletRequest request = new MockHttpServletRequest();
		MockHttpServletResponse response = new MockHttpServletResponse();
		filterProxy.doFilter(request, response, null);

		assertNull(targetFilter.filterConfig);
		assertEquals(Boolean.TRUE, request.getAttribute("called"));

		filterProxy.destroy();
		assertNull(targetFilter.filterConfig);
	}

	public void testDelegatingFilterProxyWithFilterName() throws ServletException, IOException {
		ServletContext sc = new MockServletContext();

		StaticWebApplicationContext wac = new StaticWebApplicationContext();
		wac.setServletContext(sc);
		wac.registerSingleton("targetFilter", MockFilter.class);
		wac.refresh();
		sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);

		MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");

		MockFilterConfig proxyConfig = new MockFilterConfig(sc, "targetFilter");
		DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
		filterProxy.init(proxyConfig);

		MockHttpServletRequest request = new MockHttpServletRequest();
		MockHttpServletResponse response = new MockHttpServletResponse();
		filterProxy.doFilter(request, response, null);

		assertNull(targetFilter.filterConfig);
		assertEquals(Boolean.TRUE, request.getAttribute("called"));

		filterProxy.destroy();
		assertNull(targetFilter.filterConfig);
	}

	public void testDelegatingFilterProxyWithLazyContextStartup() throws ServletException, IOException {
		ServletContext sc = new MockServletContext();

		MockFilterConfig proxyConfig = new MockFilterConfig(sc);
		proxyConfig.addInitParameter("targetBeanName", "targetFilter");
		DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
		filterProxy.init(proxyConfig);

		StaticWebApplicationContext wac = new StaticWebApplicationContext();
		wac.setServletContext(sc);
		wac.registerSingleton("targetFilter", MockFilter.class);
		wac.refresh();
		sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);

		MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");

		MockHttpServletRequest request = new MockHttpServletRequest();
		MockHttpServletResponse response = new MockHttpServletResponse();
		filterProxy.doFilter(request, response, null);

		assertNull(targetFilter.filterConfig);
		assertEquals(Boolean.TRUE, request.getAttribute("called"));

		filterProxy.destroy();
		assertNull(targetFilter.filterConfig);
	}

	public void testDelegatingFilterProxyWithTargetFilterLifecycle() throws ServletException, IOException {
		ServletContext sc = new MockServletContext();

		StaticWebApplicationContext wac = new StaticWebApplicationContext();
		wac.setServletContext(sc);
		wac.registerSingleton("targetFilter", MockFilter.class);
		wac.refresh();
		sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);

		MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");

		MockFilterConfig proxyConfig = new MockFilterConfig(sc);
		proxyConfig.addInitParameter("targetBeanName", "targetFilter");
		proxyConfig.addInitParameter("targetFilterLifecycle", "true");
		DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
		filterProxy.init(proxyConfig);
		assertEquals(proxyConfig, targetFilter.filterConfig);

		MockHttpServletRequest request = new MockHttpServletRequest();
		MockHttpServletResponse response = new MockHttpServletResponse();
		filterProxy.doFilter(request, response, null);

		assertEquals(proxyConfig, targetFilter.filterConfig);
		assertEquals(Boolean.TRUE, request.getAttribute("called"));

		filterProxy.destroy();
		assertNull(targetFilter.filterConfig);
	}


	public static class MockFilter implements Filter {

		public FilterConfig filterConfig;

		public void init(FilterConfig filterConfig) throws ServletException {
			this.filterConfig = filterConfig;
		}

		public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException {
			request.setAttribute("called", Boolean.TRUE);
		}

		public void destroy() {
			this.filterConfig = null;
		}
	}

}

Other Spring Framework examples (source code examples)

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