deltaspike/core/impl/src/test/java/org/apache/deltaspike/test/core/impl/jmx/SimpleRegistrationTest.java

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 * 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
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 * Unless required by applicable law or agreed to in writing,
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 * specific language governing permissions and limitations
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package org.apache.deltaspike.test.core.impl.jmx;

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

import javax.inject.Inject;
import javax.management.Attribute;
import javax.management.MBeanInfo;
import javax.management.MBeanOperationInfo;
import javax.management.MBeanParameterInfo;
import javax.management.MBeanServer;
import javax.management.Notification;
import javax.management.NotificationListener;
import javax.management.ObjectName;
import javax.management.openmbean.CompositeData;
import javax.management.openmbean.TabularData;
import java.lang.management.ManagementFactory;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

public abstract class SimpleRegistrationTest {
    private static MBeanServer server = ManagementFactory.getPlatformMBeanServer();

    @Inject
    private MyMBean myMBean;

    @Test
    public void checkMBean() throws Exception {
        assertEquals(0, myMBean.getCounter());
        myMBean.resetTo(2);
        final ObjectName on = new ObjectName("org.apache.deltaspike:type=MBeans,name=" + MyMBean.class.getName());
        assertTrue(server.isRegistered(on));

        assertEquals(2, server.getAttribute(on, "counter"));
        assertEquals(6, server.invoke(on, "multiply", new Object[]{3}, new String[0]));

        myMBean.resetTo(5);

        assertEquals(5, server.getAttribute(on, "counter"));
        assertEquals(20, server.invoke(on, "multiply", new Object[]{4}, new String[0]));

        server.setAttribute(on, new Attribute("counter", 10));
        assertEquals(10, myMBean.getCounter());

        final Collection<Notification> notifications = new ArrayList<Notification>();
        server.addNotificationListener(on, new NotificationListener() {
            @Override
            public void handleNotification(final Notification notification, final Object handback) {
                notifications.add(notification);
            }
        }, null, null);
        myMBean.broadcast();
        assertEquals(1, notifications.size());
        assertEquals(10L, notifications.iterator().next().getSequenceNumber());

        MBeanInfo mBeanInfo = server.getMBeanInfo(on);
        Assert.assertNotNull(mBeanInfo);
        MBeanOperationInfo[] operations = mBeanInfo.getOperations();
        Assert.assertNotNull(operations);
        Assert.assertTrue(operations.length > 0);
        Assert.assertTrue("Empty Signature on operation: " + operations[1], operations[1].getSignature().length > 0);
        MBeanParameterInfo parameterInfo = operations[1].getSignature()[0];
        assertEquals("multiplier", parameterInfo.getName());
        assertEquals("the multiplier", parameterInfo.getDescription());

        { // table support - through map
            Object table = server.getAttribute(on, "table");
            assertTrue(TabularData.class.isInstance(table));
            final TabularData data = TabularData.class.cast(table);
            assertEquals(1, data.size());
            final CompositeData compositeData = CompositeData.class.cast(data.values().iterator().next());
            assertEquals(2, compositeData.values().size());
            assertEquals("value1", compositeData.get("key1"));
            assertEquals("value2", compositeData.get("key2"));
        }

        { // table support - through Table
            Object table = server.getAttribute(on, "table2");
            assertTrue(TabularData.class.isInstance(table));
            final TabularData data = TabularData.class.cast(table);
            assertEquals(2, data.size());
            final Iterator<?> iterator = data.values().iterator();
            {
                final CompositeData compositeData = CompositeData.class.cast(iterator.next());
                assertEquals(3, compositeData.values().size());
                assertEquals("1", compositeData.get("a"));
                assertEquals("2", compositeData.get("b"));
                assertEquals("3", compositeData.get("c"));
            }
            {
                final CompositeData compositeData = CompositeData.class.cast(iterator.next());
                assertEquals(3, compositeData.values().size());
                assertEquals("alpha", compositeData.get("a"));
                assertEquals("beta", compositeData.get("b"));
                assertEquals("gamma", compositeData.get("c"));
            }
        }
    }
}