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Spring Framework example source code file (MessageTagTests.java)

This example Spring Framework source code file (MessageTagTests.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

correct, correct, defaultmessagesourceresolvable, http, integer, jsp, jspexception, messagetag, messagetag, object, pagecontext, pagecontext, request, response, servlet, string, stringbuffer, stringbuffer, util, x

The Spring Framework MessageTagTests.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;

import java.util.Arrays;
import java.util.List;
import java.util.Locale;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.Tag;

import org.springframework.context.MessageSourceResolvable;
import org.springframework.context.support.DefaultMessageSourceResolvable;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.web.context.ConfigurableWebApplicationContext;
import org.springframework.web.servlet.support.RequestContext;
import org.springframework.web.servlet.support.RequestContextUtils;

/**
 * @author Juergen Hoeller
 * @author Alef Arendsen
 */
public class MessageTagTests extends AbstractTagTests {

	public void testMessageTagWithMessageSourceResolvable1() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setMessage(new DefaultMessageSourceResolvable("test"));
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test message", message.toString());
	}

	public void testMessageTagWithMessageSourceResolvable2() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		pc.setAttribute("myattr", new DefaultMessageSourceResolvable("test"));
		tag.setMessage("${myattr}");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test message", message.toString());
	}

	public void testMessageTagWithCode1() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("test");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test message", message.toString());
	}

	public void testMessageTagWithCode2() throws JspException {
		PageContext pc = createPageContext();
		MockHttpServletRequest request = (MockHttpServletRequest) pc.getRequest();
		request.addPreferredLocale(Locale.CANADA);
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		pc.setAttribute("myattr", "test");
		tag.setCode("${myattr}");
		tag.setHtmlEscape("true");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "Canadian & test message", message.toString());
	}

	public void testMessageTagWithNullCode() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode(null);
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "null", message.toString());
	}

	public void testMessageTagWithCodeAndArgument() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("testArgs");
		tag.setArguments("arg1");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test arg1 message {1}", message.toString());
	}

	public void testMessageTagWithCodeAndArguments() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("testArgs");
		tag.setArguments("arg1,arg2");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test arg1 message arg2", message.toString());
	}

	public void testMessageTagWithCodeAndStringArgumentWithCustomSeparator() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("testArgs");
		tag.setArguments("arg1,1;arg2,2");
		tag.setArgumentSeparator(";");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test arg1,1 message arg2,2", message.toString());
	}

	public void testMessageTagWithCodeAndArrayArgument() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("testArgs");
		tag.setArguments(new Object[] {"arg1", new Integer(5)});
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test arg1 message 5", message.toString());
	}

	public void testMessageTagWithCodeAndObjectArgument() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("testArgs");
		tag.setArguments(new Integer(5));
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test 5 message {1}", message.toString());
	}

	public void testMessageTagWithCodeAndExpressionArgument() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("testArgs");
		tag.setArguments("${arg1}");
		pc.setAttribute("arg1", "my,value");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test my,value message {1}", message.toString());
	}

	public void testMessageTagWithCodeAndExpressionArguments() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("testArgs");
		tag.setArguments("${arg1},${arg2}");
		pc.setAttribute("arg1", "my,value");
		pc.setAttribute("arg2", new Integer(5));
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test my,value message 5", message.toString());
	}

	public void testMessageTagWithCodeAndExpressionArgumentArray() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("testArgs");
		tag.setArguments("${argArray}");
		pc.setAttribute("argArray", new Object[] {"my,value", new Integer(5)});
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test my,value message 5", message.toString());
	}

	public void testMessageTagWithCodeAndExpressionArgumentFormat() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("testArgsFormat");
		tag.setArguments("${arg1},${arg2}");
		pc.setAttribute("arg1", "my,value");
		pc.setAttribute("arg2", new Float(5.145));
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test my,value message 5.14 X", message.toString());
	}

	public void testMessageTagWithCodeAndText1() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setCode("test");
		tag.setText("testtext");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test message", (message.toString()));
	}

	public void testMessageTagWithCodeAndText2() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		pc.setAttribute("myattr", "test & text");
		tag.setCode("test2");
		tag.setText("${myattr}");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test & text", message.toString());
	}

	public void testMessageTagWithText() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setText("test & text");
		tag.setHtmlEscape("true");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test & text", message.toString());
	}
	
	public void testMessageTagWithTextAndExpressionArgumentFormat() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setText("test {0} message {1,number,#.##} X");
		tag.setArguments("${arg1},${arg2}");
		pc.setAttribute("arg1", "my,value");
		pc.setAttribute("arg2", new Float(5.145));
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "test my,value message 5.14 X", message.toString());
	}

	public void testMessageTagWithTextAndJavaScriptEscape() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setText("' test & text \\");
		tag.setJavaScriptEscape("true");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "\\' test & text \\\\", message.toString());
	}

	public void testMessageTagWithTextAndHtmlEscapeAndJavaScriptEscape() throws JspException {
		PageContext pc = createPageContext();
		final StringBuffer message = new StringBuffer();
		MessageTag tag = new MessageTag() {
			protected void writeMessage(String msg) {
				message.append(msg);
			}
		};
		tag.setPageContext(pc);
		tag.setText("' test & text \\");
		tag.setHtmlEscape("true");
		tag.setJavaScriptEscape("true");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("Correct message", "\\' test & text \\\\", message.toString());
	}

	public void testMessageWithVarAndScope() throws JspException {
		PageContext pc = createPageContext();
		MessageTag tag = new MessageTag();
		tag.setPageContext(pc);
		tag.setText("text & text");
		tag.setVar("testvar");		
		tag.setScope("page");
		tag.doStartTag();
		assertEquals("text & text", pc.getAttribute("testvar"));
		tag.release();
		
		tag = new MessageTag();
		tag.setPageContext(pc);
		tag.setCode("test");
		tag.setVar("testvar2");
		tag.doStartTag();
		assertEquals("Correct message", "test message", pc.getAttribute("testvar2"));
		tag.release();
	}

	public void testMessageWithVar() throws JspException {
		PageContext pc = createPageContext();
		MessageTag tag = new MessageTag();
		tag.setPageContext(pc);
		tag.setText("text & text");
		tag.setVar("testvar");		
		tag.doStartTag();
		assertEquals("text & text", pc.getAttribute("testvar"));
		tag.release();

		// try to reuse
		tag.setPageContext(pc);
		tag.setCode("test");
		tag.setVar("testvar");
			
		tag.doStartTag();
		assertEquals("Correct message", "test message", pc.getAttribute("testvar"));
	}
	
	public void testNullMessageSource() throws JspException {
		PageContext pc = createPageContext();
		ConfigurableWebApplicationContext ctx = (ConfigurableWebApplicationContext)
				RequestContextUtils.getWebApplicationContext(pc.getRequest(), pc.getServletContext());
		ctx.close();

		MessageTag tag = new MessageTag();
		tag.setPageContext(pc);
		tag.setCode("test");
		tag.setVar("testvar2");
		tag.doStartTag();
	}

	public void testRequestContext() throws ServletException {
		PageContext pc = createPageContext();
		RequestContext rc = new RequestContext((HttpServletRequest) pc.getRequest(), pc.getServletContext());
		assertEquals("test message", rc.getMessage("test"));
		assertEquals("test message", rc.getMessage("test", (Object[]) null));
		assertEquals("test message", rc.getMessage("test", "default"));
		assertEquals("test message", rc.getMessage("test", (Object[]) null, "default"));
		assertEquals("test arg1 message arg2",
				rc.getMessage("testArgs", new String[] {"arg1", "arg2"}, "default"));
		assertEquals("test arg1 message arg2",
				rc.getMessage("testArgs", Arrays.asList(new String[] {"arg1", "arg2"}), "default"));
		assertEquals("default", rc.getMessage("testa", "default"));
		assertEquals("default", rc.getMessage("testa", (List) null, "default"));
		MessageSourceResolvable resolvable = new DefaultMessageSourceResolvable(new String[] {"test"});
		assertEquals("test message", rc.getMessage(resolvable));
	}

}

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