/**
* Copyright 2010 The Apache Software Foundation
*
* 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.hadoop.hbase.metrics;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanInfo;
import org.apache.hadoop.metrics.MetricsContext;
import org.apache.hadoop.metrics.MetricsRecord;
import org.apache.hadoop.metrics.MetricsUtil;
import org.apache.hadoop.metrics.util.MetricsIntValue;
import org.apache.hadoop.metrics.util.MetricsRegistry;
import org.apache.hadoop.metrics.util.MetricsTimeVaryingRate;
import junit.framework.TestCase;
public class TestMetricsMBeanBase extends TestCase {
private class TestStatistics extends MetricsMBeanBase {
public TestStatistics(MetricsRegistry registry) {
super(registry, "TestStatistics");
}
}
private MetricsRegistry registry;
private MetricsRecord metricsRecord;
private TestStatistics stats;
private MetricsRate metricsRate;
private MetricsIntValue intValue;
private MetricsTimeVaryingRate varyRate;
public void setUp() {
this.registry = new MetricsRegistry();
this.metricsRate = new MetricsRate("metricsRate", registry, "test");
this.intValue = new MetricsIntValue("intValue", registry, "test");
this.varyRate = new MetricsTimeVaryingRate("varyRate", registry, "test");
this.stats = new TestStatistics(registry);
MetricsContext context = MetricsUtil.getContext("hbase");
this.metricsRecord = MetricsUtil.createRecord(context, "test");
this.metricsRecord.setTag("TestStatistics", "test");
//context.registerUpdater(this);
}
public void tearDown() {
}
public void testGetAttribute() throws Exception {
this.metricsRate.inc(2);
Thread.sleep(1000);
this.metricsRate.pushMetric(this.metricsRecord);
this.intValue.set(5);
this.intValue.pushMetric(this.metricsRecord);
this.varyRate.inc(10);
this.varyRate.inc(50);
this.varyRate.pushMetric(this.metricsRecord);
assertEquals( 2.0, (Float)this.stats.getAttribute("metricsRate"), 0.005 );
assertEquals( 5, this.stats.getAttribute("intValue") );
assertEquals( 10L, this.stats.getAttribute("varyRateMinTime") );
assertEquals( 50L, this.stats.getAttribute("varyRateMaxTime") );
assertEquals( 30L, this.stats.getAttribute("varyRateAvgTime") );
assertEquals( 2, this.stats.getAttribute("varyRateNumOps") );
}
public void testGetMBeanInfo() {
MBeanInfo info = this.stats.getMBeanInfo();
MBeanAttributeInfo[] attributes = info.getAttributes();
assertEquals( 6, attributes.length );
Map<String,MBeanAttributeInfo> attributeByName =
new HashMap<String,MBeanAttributeInfo>(attributes.length);
for (MBeanAttributeInfo attr : attributes)
attributeByName.put(attr.getName(), attr);
assertAttribute( attributeByName.get("metricsRate"),
"metricsRate", "java.lang.Float", "test");
assertAttribute( attributeByName.get("intValue"),
"intValue", "java.lang.Integer", "test");
assertAttribute( attributeByName.get("varyRateMinTime"),
"varyRateMinTime", "java.lang.Long", "test");
assertAttribute( attributeByName.get("varyRateMaxTime"),
"varyRateMaxTime", "java.lang.Long", "test");
assertAttribute( attributeByName.get("varyRateAvgTime"),
"varyRateAvgTime", "java.lang.Long", "test");
assertAttribute( attributeByName.get("varyRateNumOps"),
"varyRateNumOps", "java.lang.Integer", "test");
}
protected void assertAttribute(MBeanAttributeInfo attr, String name,
String type, String description) {
assertEquals(attr.getName(), name);
assertEquals(attr.getType(), type);
assertEquals(attr.getDescription(), description);
}
}