| /** |
| * 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.ambari.metrics.core.loadsimulator.data; |
| |
| import org.apache.ambari.metrics.core.loadsimulator.util.Json; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class TestAppMetrics { |
| private static final String SAMPLE_SINGLE_METRIC_HOST_JSON = "{\n" + |
| " \"metrics\" : [ {\n" + |
| " \"instanceid\" : \"\",\n" + |
| " \"hostname\" : \"localhost\",\n" + |
| " \"metrics\" : {\n" + |
| " \"0\" : \"5.35\",\n" + |
| " \"5000\" : \"5.35\",\n" + |
| " \"10000\" : \"5.35\",\n" + |
| " \"15000\" : \"5.35\"\n" + |
| " },\n" + |
| " \"starttime\" : \"1411663170112\",\n" + |
| " \"appid\" : \"HOST\",\n" + |
| " \"metricname\" : \"disk_free\"\n" + |
| " } ]\n" + |
| "}"; |
| |
| private static final String SAMPLE_TWO_METRIC_HOST_JSON = "{\n" + |
| " \"metrics\" : [ {\n" + |
| " \"instanceid\" : \"\",\n" + |
| " \"hostname\" : \"localhost\",\n" + |
| " \"metrics\" : {\n" + |
| " \"0\" : \"5.35\",\n" + |
| " \"5000\" : \"5.35\",\n" + |
| " \"10000\" : \"5.35\",\n" + |
| " \"15000\" : \"5.35\"\n" + |
| " },\n" + |
| " \"starttime\" : \"0\",\n" + |
| " \"appid\" : \"HOST\",\n" + |
| " \"metricname\" : \"disk_free\"\n" + |
| " }, {\n" + |
| " \"instanceid\" : \"\",\n" + |
| " \"hostname\" : \"localhost\",\n" + |
| " \"metrics\" : {\n" + |
| " \"0\" : \"94.0\",\n" + |
| " \"5000\" : \"94.0\",\n" + |
| " \"10000\" : \"94.0\",\n" + |
| " \"15000\" : \"94.0\"\n" + |
| " },\n" + |
| " \"starttime\" : \"0\",\n" + |
| " \"appid\" : \"HOST\",\n" + |
| " \"metricname\" : \"mem_cached\"\n" + |
| " } ]\n" + |
| "}"; |
| |
| private long[] timestamps; |
| |
| @Before |
| public void setUp() throws Exception { |
| timestamps = new long[4]; |
| timestamps[0] = 0; |
| timestamps[1] = timestamps[0] + 5000; |
| timestamps[2] = timestamps[1] + 5000; |
| timestamps[3] = timestamps[2] + 5000; |
| |
| } |
| |
| @Test |
| public void testHostDiskMetricsSerialization() throws IOException { |
| long timestamp = 1411663170112L; |
| AppMetrics appMetrics = new AppMetrics(new ApplicationInstance("localhost", AppID.HOST, ""), timestamp); |
| |
| Metric diskFree = appMetrics.createMetric("disk_free"); |
| double value = 5.35; |
| |
| diskFree.putMetric(timestamps[0], Double.toString(value)); |
| diskFree.putMetric(timestamps[1], Double.toString(value)); |
| diskFree.putMetric(timestamps[2], Double.toString(value)); |
| diskFree.putMetric(timestamps[3], Double.toString(value)); |
| |
| appMetrics.addMetric(diskFree); |
| |
| String expected = SAMPLE_SINGLE_METRIC_HOST_JSON; |
| String s = new Json(true).serialize(appMetrics); |
| |
| assertEquals("Serialized Host Metrics", expected, s); |
| } |
| |
| |
| @Test |
| public void testSingleHostManyMetricsSerialization() throws IOException { |
| AppMetrics appMetrics = new AppMetrics(new ApplicationInstance("localhost", AppID.HOST, ""), timestamps[0]); |
| |
| Metric diskFree = appMetrics.createMetric("disk_free"); |
| double value = 5.35; |
| diskFree.putMetric(timestamps[0], Double.toString(value)); |
| diskFree.putMetric(timestamps[1], Double.toString(value)); |
| diskFree.putMetric(timestamps[2], Double.toString(value)); |
| diskFree.putMetric(timestamps[3], Double.toString(value)); |
| |
| appMetrics.addMetric(diskFree); |
| |
| Metric memCache = appMetrics.createMetric("mem_cached"); |
| double memVal = 94; |
| memCache.putMetric(timestamps[0], Double.toString(memVal)); |
| memCache.putMetric(timestamps[1], Double.toString(memVal)); |
| memCache.putMetric(timestamps[2], Double.toString(memVal)); |
| memCache.putMetric(timestamps[3], Double.toString(memVal)); |
| |
| appMetrics.addMetric(memCache); |
| |
| String expected = SAMPLE_TWO_METRIC_HOST_JSON; |
| String s = new Json(true).serialize(appMetrics); |
| |
| assertEquals("Serialized Host Metrics", expected, s); |
| } |
| } |