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ActiveMQ example source code file (ActiveMQTextMessageTest.java)

This example ActiveMQ source code file (ActiveMQTextMessageTest.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 - ActiveMQ tags/keywords

activemqtextmessage, activemqtextmessage, bytearrayoutputstream, dataoutputstream, exception, io, ioexception, jmsexception, jmsexception, messagenotreadableexception, messagenotreadableexception, messagenotwriteableexception, string, string, very

The ActiveMQ ActiveMQTextMessageTest.java source code

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.activemq.command;

import java.io.DataOutputStream;
import java.io.IOException;

import javax.jms.JMSException;
import javax.jms.MessageNotReadableException;
import javax.jms.MessageNotWriteableException;

import junit.framework.TestCase;
import junit.textui.TestRunner;

import org.apache.activemq.util.ByteArrayOutputStream;
import org.apache.activemq.util.ByteSequence;
import org.apache.activemq.util.MarshallingSupport;

/**
 * 
 */
public class ActiveMQTextMessageTest extends TestCase {

    public static void main(String[] args) {
        TestRunner.run(ActiveMQTextMessageTest.class);
    }

    public void testGetDataStructureType() {
        ActiveMQTextMessage msg = new ActiveMQTextMessage();
        assertEquals(msg.getDataStructureType(), CommandTypes.ACTIVEMQ_TEXT_MESSAGE);
    }

    public void testShallowCopy() throws JMSException {
        ActiveMQTextMessage msg = new ActiveMQTextMessage();
        String string = "str";
        msg.setText(string);
        Message copy = msg.copy();
        assertTrue(msg.getText() == ((ActiveMQTextMessage) copy).getText());
    }

    public void testSetText() {
        ActiveMQTextMessage msg = new ActiveMQTextMessage();
        String str = "testText";
        try {
            msg.setText(str);
            assertEquals(msg.getText(), str);
        } catch (JMSException e) {
            e.printStackTrace();
        }
    }

    public void testGetBytes() throws JMSException, IOException {
        ActiveMQTextMessage msg = new ActiveMQTextMessage();
        String str = "testText";
        msg.setText(str);
        msg.beforeMarshall(null);
        
        ByteSequence bytes = msg.getContent();
        msg = new ActiveMQTextMessage();
        msg.setContent(bytes);
        
        assertEquals(msg.getText(), str);
    }

    public void testClearBody() throws JMSException, IOException {
        ActiveMQTextMessage textMessage = new ActiveMQTextMessage();
        textMessage.setText("string");
        textMessage.clearBody();
        assertFalse(textMessage.isReadOnlyBody());
        assertNull(textMessage.getText());
        try {
            textMessage.setText("String");
            textMessage.getText();
        } catch (MessageNotWriteableException mnwe) {
            fail("should be writeable");
        } catch (MessageNotReadableException mnre) {
            fail("should be readable");
        }
    }

    public void testReadOnlyBody() throws JMSException {
        ActiveMQTextMessage textMessage = new ActiveMQTextMessage();
        textMessage.setText("test");
        textMessage.setReadOnlyBody(true);
        try {
            textMessage.getText();
        } catch (MessageNotReadableException e) {
            fail("should be readable");
        }
        try {
            textMessage.setText("test");
            fail("should throw exception");
        } catch (MessageNotWriteableException mnwe) {
        }
    }

    public void testWriteOnlyBody() throws JMSException { // should always be readable
        ActiveMQTextMessage textMessage = new ActiveMQTextMessage();
        textMessage.setReadOnlyBody(false);
        try {
            textMessage.setText("test");
            textMessage.getText();
        } catch (MessageNotReadableException e) {
            fail("should be readable");
        }
        textMessage.setReadOnlyBody(true);
        try {
            textMessage.getText();
            textMessage.setText("test");
            fail("should throw exception");
        } catch (MessageNotReadableException e) {
            fail("should be readable");
        } catch (MessageNotWriteableException mnwe) {
        }
    }
    
    public void testShortText() throws Exception {
        String shortText = "Content";
    	ActiveMQTextMessage shortMessage = new ActiveMQTextMessage();
        setContent(shortMessage, shortText);
        assertTrue(shortMessage.toString().contains("text = " + shortText));
        assertTrue(shortMessage.getText().equals(shortText));
        
        String longText = "Very very very very veeeeeeery loooooooooooooooooooooooooooooooooong text";
        String longExpectedText = "Very very very very veeeeeeery looooooooooooo...ooooong text";
        ActiveMQTextMessage longMessage = new ActiveMQTextMessage();
        setContent(longMessage, longText);
        assertTrue(longMessage.toString().contains("text = " + longExpectedText));
        assertTrue(longMessage.getText().equals(longText));         
    }
    
    public void testNullText() throws Exception {
    	ActiveMQTextMessage nullMessage = new ActiveMQTextMessage();
    	setContent(nullMessage, null);
    	assertTrue(nullMessage.toString().contains("text = null"));
    }
    
    protected void setContent(Message message, String text) throws Exception {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DataOutputStream dataOut = new DataOutputStream(baos);
        MarshallingSupport.writeUTF8(dataOut, text);
        dataOut.close();
        message.setContent(baos.toByteSequence());
    }
}

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