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Apache CXF example source code file (JMSUtilsTest.java)

This example Apache CXF source code file (JMSUtilsTest.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 - Apache CXF tags/keywords

assert, atomiclong, atomiclong, expect, get, get, io, ioexception, string, string, test, the, the, unsupportedencodingexception, utf-8, util

The Apache CXF JMSUtilsTest.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.cxf.transport.jms;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicLong;

import org.junit.Assert;
import org.junit.Test;

public class JMSUtilsTest extends Assert {
    
    @Test
    public void testGetEncoding() throws IOException {                
        assertEquals("Get the wrong encoding", JMSUtils.getEncoding("text/xml; charset=utf-8"), "UTF-8");
        assertEquals("Get the wrong encoding", JMSUtils.getEncoding("text/xml"), "UTF-8");
        assertEquals("Get the wrong encoding", JMSUtils.getEncoding("text/xml; charset=GBK"), "GBK");
        try {
            JMSUtils.getEncoding("text/xml; charset=asci");
            fail("Expect the exception here");
        } catch (Exception ex) {
            assertTrue("we should get the UnsupportedEncodingException here",
                       ex instanceof UnsupportedEncodingException);
        }
    }
    
    @Test
    public void testCorrelationIDGeneration() {
        final String conduitId = UUID.randomUUID().toString().replaceAll("-", "");
        // test min edge case
        AtomicLong messageMinCount = new AtomicLong(0);
        String correlationID = 
            JMSUtils.createCorrelationId(conduitId, messageMinCount.get());
        
        String expected = conduitId + "0000000000000000";
        assertEquals("The correlationID value does not match expected value",
                     expected, correlationID);
        assertEquals("The correlationID value does not match expected length",
                     48, correlationID.length());
        
        // test max edge case
        AtomicLong messageMaxCount = new AtomicLong(0xFFFFFFFFFFFFFFFFL);
        
        correlationID = 
            JMSUtils.createCorrelationId(conduitId, messageMaxCount.get());
        
        expected = conduitId + "ffffffffffffffff";
        assertEquals("The correlationID value does not match expected value",
                     expected, correlationID);
        assertEquals("The correlationID value does not match expected length",
                48, correlationID.length());

        // test overflow case
        AtomicLong overflowCount = new AtomicLong(0xFFFFFFFFFFFFFFFFL);
        
        correlationID = 
            JMSUtils.createCorrelationId(conduitId, overflowCount.incrementAndGet());
        
        expected = conduitId + "0000000000000000";
        assertEquals("The correlationID value does not match expected value",
                     expected, correlationID);
        assertEquals("The correlationID value does not match expected length",
                48, correlationID.length());
        
        // test sequential flow
        AtomicLong messageSequenceCount = new AtomicLong(0);
        correlationID = 
            JMSUtils.createCorrelationId(conduitId, messageSequenceCount.incrementAndGet());
        
        expected = conduitId + "0000000000000001";
        assertEquals("The correlationID value does not match expected value",
                     expected, correlationID);
        assertEquals("The correlationID value does not match expected length",
                     48, correlationID.length());

        correlationID = 
            JMSUtils.createCorrelationId(conduitId, messageSequenceCount.incrementAndGet());

        expected = conduitId + "0000000000000002";
        assertEquals("The correlationID value does not match expected value",
                     expected, correlationID);
        assertEquals("The correlationID value does not match expected length",
                     48, correlationID.length());
    }
}

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