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Spring Framework example source code file (AbstractHtmlElementTagTests.java)

This example Spring Framework source code file (AbstractHtmlElementTagTests.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

abstracttagtests, command_name, expected, http, io, jspexception, mockhttpservletrequest, mockpagecontext, mockpagecontext, request, requestcontext, requestcontext, response, servlet, string, string, stringwriter, stringwriter, unexpected, util

The Spring Framework AbstractHtmlElementTagTests.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.tags.form;

import java.io.StringWriter;
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;

import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockPageContext;
import org.springframework.validation.BindingResult;
import org.springframework.validation.Errors;
import org.springframework.web.servlet.support.JspAwareRequestContext;
import org.springframework.web.servlet.support.RequestContext;
import org.springframework.web.servlet.tags.AbstractTagTests;
import org.springframework.web.servlet.tags.RequestContextAwareTag;

/**
 * @author Rob Harrop
 * @author Juergen Hoeller
 */
public abstract class AbstractHtmlElementTagTests extends AbstractTagTests {

	public static final String COMMAND_NAME = "testBean";

	private StringWriter writer;

	private MockPageContext pageContext;


	protected final void setUp() throws Exception {
		// set up a writer for the tag content to be written to
		this.writer = new StringWriter();

		// configure the page context
		this.pageContext = createAndPopulatePageContext();

		onSetUp();
	}

	protected MockPageContext createAndPopulatePageContext() throws JspException {
		MockPageContext pageContext = createPageContext();
		MockHttpServletRequest request = (MockHttpServletRequest) pageContext.getRequest();
		RequestContext requestContext = new JspAwareRequestContext(pageContext);
		pageContext.setAttribute(RequestContextAwareTag.REQUEST_CONTEXT_PAGE_ATTRIBUTE, requestContext);
		extendRequest(request);
		extendPageContext(pageContext);
		return pageContext;
	}

	protected void extendPageContext(MockPageContext pageContext) throws JspException {
	}

	protected void extendRequest(MockHttpServletRequest request) {
	}

	protected void onSetUp() {
	}

	protected MockPageContext getPageContext() {
		return this.pageContext;
	}

	protected Writer getWriter() {
		return this.writer;
	}

	protected String getOutput() {
		return this.writer.toString();
	}

	protected final RequestContext getRequestContext() {
		return (RequestContext) getPageContext().getAttribute(RequestContextAwareTag.REQUEST_CONTEXT_PAGE_ATTRIBUTE);
	}


	protected void exposeBindingResult(Errors errors) {
		// wrap errors in a Model
		Map model = new HashMap();
		model.put(BindingResult.MODEL_KEY_PREFIX + COMMAND_NAME, errors);

		// replace the request context with one containing the errors
		MockPageContext pageContext = getPageContext();
		RequestContext context = new RequestContext((HttpServletRequest) pageContext.getRequest(), model);
		pageContext.setAttribute(RequestContextAwareTag.REQUEST_CONTEXT_PAGE_ATTRIBUTE, context);
	}

	protected final void assertContainsAttribute(String output, String attributeName, String attributeValue) {
		String attributeString = attributeName + "=\"" + attributeValue + "\"";
		assertTrue("Expected to find attribute '" + attributeName +
				"' with value '" + attributeValue +
				"' in output + '" + output + "'",
				output.indexOf(attributeString) > -1);
	}

	protected final void assertAttributeNotPresent(String output, String attributeName) {
		assertTrue("Unexpected attribute '" + attributeName + "' in output '" + output + "'.",
				output.indexOf(attributeName + "=\"") < 0);
	}

	protected final void assertBlockTagContains(String output, String desiredContents) {
		String contents = output.substring(output.indexOf(">") + 1, output.lastIndexOf("<"));
		assertTrue("Expected to find '" + desiredContents + "' in the contents of block tag '" + output + "'",
				contents.indexOf(desiredContents) > -1);
	}

}

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