| /** |
| * 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.metrics2.lib; |
| |
| import org.junit.Test; |
| import static org.mockito.Mockito.*; |
| import static org.mockito.AdditionalMatchers.*; |
| |
| import org.apache.hadoop.metrics2.MetricsRecordBuilder; |
| import static org.apache.hadoop.metrics2.lib.Interns.*; |
| import static org.apache.hadoop.test.MetricsAsserts.*; |
| |
| /** |
| * Test metrics record builder interface and mutable metrics |
| */ |
| public class TestMutableMetrics { |
| |
| private final double EPSILON = 1e-42; |
| |
| /** |
| * Test the snapshot method |
| */ |
| @Test public void testSnapshot() { |
| MetricsRecordBuilder mb = mockMetricsRecordBuilder(); |
| |
| MetricsRegistry registry = new MetricsRegistry("test"); |
| registry.newCounter("c1", "int counter", 1); |
| registry.newCounter("c2", "long counter", 2L); |
| registry.newGauge("g1", "int gauge", 3); |
| registry.newGauge("g2", "long gauge", 4L); |
| registry.newStat("s1", "stat", "Ops", "Time", true).add(0); |
| registry.newRate("s2", "stat", false).add(0); |
| |
| registry.snapshot(mb, true); |
| |
| MutableStat s2 = (MutableStat) registry.get("s2"); |
| |
| s2.snapshot(mb, true); // should get the same back. |
| s2.add(1); |
| s2.snapshot(mb, true); // should get new interval values back |
| |
| verify(mb).addCounter(info("c1", "int counter"), 1); |
| verify(mb).addCounter(info("c2", "long counter"), 2L); |
| verify(mb).addGauge(info("g1", "int gauge"), 3); |
| verify(mb).addGauge(info("g2", "long gauge"), 4L); |
| verify(mb).addCounter(info("S1NumOps", "Number of ops for stat"), 1L); |
| verify(mb).addGauge(eq(info("S1AvgTime", "Average time for stat")), |
| eq(0.0, EPSILON)); |
| verify(mb).addGauge(eq(info("S1StdevTime", |
| "Standard deviation of time for stat")), |
| eq(0.0, EPSILON)); |
| verify(mb).addGauge(eq(info("S1IMinTime", |
| "Interval min time for stat")), |
| eq(0.0, EPSILON)); |
| verify(mb).addGauge(eq(info("S1IMaxTime", |
| "Interval max time for stat")), |
| eq(0.0, EPSILON)); |
| verify(mb).addGauge(eq(info("S1MinTime","Min time for stat")), |
| eq(0.0, EPSILON)); |
| verify(mb).addGauge(eq(info("S1MaxTime","Max time for stat")), |
| eq(0.0, EPSILON)); |
| verify(mb, times(2)) |
| .addCounter(info("S2NumOps", "Number of ops for stat"), 1L); |
| verify(mb, times(2)).addGauge(eq(info("S2AvgTime", |
| "Average time for stat")), |
| eq(0.0, EPSILON)); |
| verify(mb).addCounter(info("S2NumOps", "Number of ops for stat"), 2L); |
| verify(mb).addGauge(eq(info("S2AvgTime", "Average time for stat")), |
| eq(1.0, EPSILON)); |
| } |
| |
| interface TestProtocol { |
| void foo(); |
| void bar(); |
| } |
| |
| @Test public void testMutableRates() { |
| MetricsRecordBuilder rb = mockMetricsRecordBuilder(); |
| MetricsRegistry registry = new MetricsRegistry("test"); |
| MutableRates rates = new MutableRates(registry); |
| |
| rates.init(TestProtocol.class); |
| registry.snapshot(rb, false); |
| |
| assertCounter("FooNumOps", 0L, rb); |
| assertGauge("FooAvgTime", 0.0, rb); |
| assertCounter("BarNumOps", 0L, rb); |
| assertGauge("BarAvgTime", 0.0, rb); |
| } |
| } |