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ActiveMQ example source code file (QualityOfServiceUtilsTest.java)

This example ActiveMQ source code file (QualityOfServiceUtilsTest.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

code, differentiated, differentiated, ecn, ecn, illegalargumentexception, illegalargumentexception, incorrect, net, network, no, override, services, services, string, type, util

The ActiveMQ QualityOfServiceUtilsTest.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.transport.tcp;

import java.net.Socket;
import java.util.HashMap;
import java.util.Map;
import junit.framework.TestCase;

public class QualityOfServiceUtilsTest extends TestCase {
    /**
     * Keeps track of the value that the System has set for the ECN bits, which
     * should not be overridden when Differentiated Services is set, but may be
     * overridden when Type of Service is set.
     */
    private int ECN;

    @Override
    protected void setUp() throws Exception {
        Socket socket = new Socket();
        ECN = socket.getTrafficClass() & Integer.parseInt("00000011", 2);
    }

    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
    }

    public void testValidDiffServIntegerValues() {
        int[] values = {0, 1, 32, 62, 63};
        for (int val : values) {
            testValidDiffServIntegerValue(val);
        }
    }

    public void testInvalidDiffServIntegerValues() {
        int[] values = {-2, -1, 64, 65};
        for (int val : values) {
            testInvalidDiffServIntegerValue(val);
        }
    }

    public void testValidDiffServNames() {
        Map<String, Integer> namesToExpected = new HashMap();
        namesToExpected.put("CS0", Integer.valueOf("000000", 2));
        namesToExpected.put("CS1", Integer.valueOf("001000", 2));
        namesToExpected.put("CS2", Integer.valueOf("010000", 2));
        namesToExpected.put("CS3", Integer.valueOf("011000", 2));
        namesToExpected.put("CS4", Integer.valueOf("100000", 2));
        namesToExpected.put("CS5", Integer.valueOf("101000", 2));
        namesToExpected.put("CS6", Integer.valueOf("110000", 2));
        namesToExpected.put("CS7", Integer.valueOf("111000", 2));
        namesToExpected.put("EF", Integer.valueOf("101110", 2));
        namesToExpected.put("AF11", Integer.valueOf("001010", 2));
        namesToExpected.put("AF12", Integer.valueOf("001100", 2));
        namesToExpected.put("AF13", Integer.valueOf("001110", 2));
        namesToExpected.put("AF21", Integer.valueOf("010010", 2));
        namesToExpected.put("AF22", Integer.valueOf("010100", 2));
        namesToExpected.put("AF23", Integer.valueOf("010110", 2));
        namesToExpected.put("AF31", Integer.valueOf("011010", 2));
        namesToExpected.put("AF32", Integer.valueOf("011100", 2));
        namesToExpected.put("AF33", Integer.valueOf("011110", 2));
        namesToExpected.put("AF41", Integer.valueOf("100010", 2));
        namesToExpected.put("AF42", Integer.valueOf("100100", 2));
        namesToExpected.put("AF43", Integer.valueOf("100110", 2));
        for (String name : namesToExpected.keySet()) {
            testValidDiffServName(name, namesToExpected.get(name));
        }
    }

    public void testInvalidDiffServNames() {
        String[] names = {"hello_world", "", "abcd"};
        for (String name : names) {
            testInvalidDiffServName(name);
        }
    }

    private void testValidDiffServName(String name, int expected) {
        int dscp = -1;
        try {
            dscp = QualityOfServiceUtils.getDSCP(name);
        } catch (IllegalArgumentException e) {
            fail("IllegalArgumentException thrown for valid Differentiated "
                 + " Services name: " + name);
        }
        // Make sure it adjusted for any system ECN values.
        assertEquals("Incorrect Differentiated Services Code Point "  + dscp
            + " returned for name " + name + ".", ECN | (expected << 2), dscp);
    }

    private void testInvalidDiffServName(String name) {
        try {
            int dscp = QualityOfServiceUtils.getDSCP(name);
            fail("No IllegalArgumentException thrown for invalid Differentiated"
                 + " Services value: " + name + ".");
        } catch (IllegalArgumentException e) {
        }
    }
    
    private void testValidDiffServIntegerValue(int val) {
        try {
            int dscp = QualityOfServiceUtils.getDSCP(Integer.toString(val));
            // Make sure it adjusted for any system ECN values.
            assertEquals("Incorrect Differentiated Services Code Point "
                + "returned for value " + val + ".", ECN | (val << 2), dscp);
        } catch (IllegalArgumentException e) {
            fail("IllegalArgumentException thrown for valid Differentiated "
                 + "Services value " + val);
        }
    }

    private void testInvalidDiffServIntegerValue(int val) {
        try {
            int dscp = QualityOfServiceUtils.getDSCP(Integer.toString(val));
            fail("No IllegalArgumentException thrown for invalid "
                + "Differentiated Services value " + val + ".");
        } catch (IllegalArgumentException expected) {
        }
    }

    public void testValidTypeOfServiceValues() {
        int[] values = {0, 1, 32, 100, 255};
        for (int val : values) {
            testValidTypeOfServiceValue(val);
        }
    }

    public void testInvalidTypeOfServiceValues() {
        int[] values = {-2, -1, 256, 257};
        for (int val : values) {
            testInvalidTypeOfServiceValue(val);
        }
    }

    private void testValidTypeOfServiceValue(int val) {
        try {
            int typeOfService = QualityOfServiceUtils.getToS(val);
            assertEquals("Incorrect Type of Services value returned for " + val
                + ".", val, typeOfService);
        } catch (IllegalArgumentException e) {
            fail("IllegalArgumentException thrown for valid Type of Service "
                 + "value " + val + ".");
        }
    }

    private void testInvalidTypeOfServiceValue(int val) {
        try {
            int typeOfService = QualityOfServiceUtils.getToS(val);
            fail("No IllegalArgumentException thrown for invalid "
                + "Type of Service value " + val + ".");
        } catch (IllegalArgumentException expected) {
        }
    }
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ QualityOfServiceUtilsTest.java source code file:

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