| /* |
| * 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.kafka.common.metrics; |
| |
| import org.apache.kafka.common.MetricName; |
| import org.apache.kafka.common.metrics.stats.Count; |
| import org.apache.kafka.common.metrics.stats.Sum; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import javax.management.Attribute; |
| import javax.management.AttributeList; |
| import javax.management.AttributeNotFoundException; |
| import javax.management.MBeanServer; |
| import javax.management.ObjectName; |
| import javax.management.RuntimeMBeanException; |
| import java.lang.management.ManagementFactory; |
| import java.util.List; |
| |
| import static org.hamcrest.core.IsInstanceOf.instanceOf; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| public class KafkaMbeanTest { |
| |
| private final MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer(); |
| private Sensor sensor; |
| private MetricName countMetricName; |
| private MetricName sumMetricName; |
| private Metrics metrics; |
| |
| @Before |
| public void setup() throws Exception { |
| metrics = new Metrics(); |
| metrics.addReporter(new JmxReporter()); |
| sensor = metrics.sensor("kafka.requests"); |
| countMetricName = metrics.metricName("pack.bean1.count", "grp1"); |
| sensor.add(countMetricName, new Count()); |
| sumMetricName = metrics.metricName("pack.bean1.sum", "grp1"); |
| sensor.add(sumMetricName, new Sum()); |
| } |
| |
| @After |
| public void tearDown() { |
| metrics.close(); |
| } |
| |
| @Test |
| public void testGetAttribute() throws Exception { |
| sensor.record(2.5); |
| Object counterAttribute = getAttribute(countMetricName); |
| assertEquals(1.0, counterAttribute); |
| Object sumAttribute = getAttribute(sumMetricName); |
| assertEquals(2.5, sumAttribute); |
| } |
| |
| @Test |
| public void testGetAttributeUnknown() throws Exception { |
| sensor.record(2.5); |
| try { |
| getAttribute(sumMetricName, "name"); |
| fail("Should have gotten attribute not found"); |
| } catch (AttributeNotFoundException e) { |
| // Expected |
| } |
| } |
| |
| @Test |
| public void testGetAttributes() throws Exception { |
| sensor.record(3.5); |
| sensor.record(4.0); |
| AttributeList attributeList = getAttributes(countMetricName, countMetricName.name(), sumMetricName.name()); |
| List<Attribute> attributes = attributeList.asList(); |
| assertEquals(2, attributes.size()); |
| for (Attribute attribute : attributes) { |
| if (countMetricName.name().equals(attribute.getName())) |
| assertEquals(2.0, attribute.getValue()); |
| else if (sumMetricName.name().equals(attribute.getName())) |
| assertEquals(7.5, attribute.getValue()); |
| else |
| fail("Unexpected attribute returned: " + attribute.getName()); |
| } |
| } |
| |
| @Test |
| public void testGetAttributesWithUnknown() throws Exception { |
| sensor.record(3.5); |
| sensor.record(4.0); |
| AttributeList attributeList = getAttributes(countMetricName, countMetricName.name(), |
| sumMetricName.name(), "name"); |
| List<Attribute> attributes = attributeList.asList(); |
| assertEquals(2, attributes.size()); |
| for (Attribute attribute : attributes) { |
| if (countMetricName.name().equals(attribute.getName())) |
| assertEquals(2.0, attribute.getValue()); |
| else if (sumMetricName.name().equals(attribute.getName())) |
| assertEquals(7.5, attribute.getValue()); |
| else |
| fail("Unexpected attribute returned: " + attribute.getName()); |
| } |
| } |
| |
| @Test |
| public void testInvoke() throws Exception { |
| try { |
| mBeanServer.invoke(objectName(countMetricName), "something", null, null); |
| fail("invoke should have failed"); |
| } catch (RuntimeMBeanException e) { |
| assertThat(e.getCause(), instanceOf(UnsupportedOperationException.class)); |
| } |
| } |
| |
| @Test |
| public void testSetAttribute() throws Exception { |
| try { |
| mBeanServer.setAttribute(objectName(countMetricName), new Attribute("anything", 1)); |
| fail("setAttribute should have failed"); |
| } catch (RuntimeMBeanException e) { |
| assertThat(e.getCause(), instanceOf(UnsupportedOperationException.class)); |
| } |
| } |
| |
| @Test |
| public void testSetAttributes() throws Exception { |
| try { |
| mBeanServer.setAttributes(objectName(countMetricName), new AttributeList(1)); |
| fail("setAttributes should have failed"); |
| } catch (Exception e) { |
| assertThat(e.getCause(), instanceOf(UnsupportedOperationException.class)); |
| } |
| } |
| |
| private ObjectName objectName(MetricName metricName) throws Exception { |
| return new ObjectName(JmxReporter.getMBeanName("", metricName)); |
| } |
| |
| private Object getAttribute(MetricName metricName, String attribute) throws Exception { |
| return mBeanServer.getAttribute(objectName(metricName), attribute); |
| } |
| |
| private Object getAttribute(MetricName metricName) throws Exception { |
| return getAttribute(metricName, metricName.name()); |
| } |
| |
| private AttributeList getAttributes(MetricName metricName, String... attributes) throws Exception { |
| return mBeanServer.getAttributes(objectName(metricName), attributes); |
| } |
| |
| } |