[05/39] ambari git commit: AMBARI-14806. Provide Metrics discovery API for AMS. (swagle)

[nc...@apache.org]

http://git-wip-us.apache.org/repos/asf/ambari/blob/646fb429/ambari-metrics/ambari-metrics-timelineservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/discovery/TestMetadataManager.java
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diff --git a/ambari-metrics/ambari-metrics-timelineservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/discovery/TestMetadataManager.java b/ambari-metrics/ambari-metrics-timelineservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/discovery/TestMetadataManager.java
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+++ b/ambari-metrics/ambari-metrics-timelineservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/discovery/TestMetadataManager.java
@@ -0,0 +1,112 @@
+/**
+ * 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.yarn.server.applicationhistoryservice.metrics.timeline.discovery;
+
+import junit.framework.Assert;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.metrics2.sink.timeline.TimelineMetric;
+import org.apache.hadoop.metrics2.sink.timeline.TimelineMetricMetadata;
+import org.apache.hadoop.metrics2.sink.timeline.TimelineMetrics;
+import org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.timeline.AbstractMiniHBaseClusterTest;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+
+public class TestMetadataManager extends AbstractMiniHBaseClusterTest {
+  TimelineMetricMetadataManager metadataManager;
+
+  @Before
+  public void insertDummyRecords() throws IOException, SQLException {
+    // Initialize new manager
+    metadataManager = new TimelineMetricMetadataManager(hdb, new Configuration());
+    final long now = System.currentTimeMillis();
+
+    TimelineMetrics timelineMetrics = new TimelineMetrics();
+    TimelineMetric metric1 = new TimelineMetric();
+    metric1.setMetricName("dummy_metric1");
+    metric1.setHostName("dummy_host1");
+    metric1.setTimestamp(now);
+    metric1.setStartTime(now - 1000);
+    metric1.setAppId("dummy_app1");
+    metric1.setType("Integer");
+    metric1.setMetricValues(new TreeMap<Long, Double>() {{
+      put(now - 100, 1.0);
+      put(now - 200, 2.0);
+      put(now - 300, 3.0);
+    }});
+    timelineMetrics.getMetrics().add(metric1);
+    TimelineMetric metric2 = new TimelineMetric();
+    metric2.setMetricName("dummy_metric2");
+    metric2.setHostName("dummy_host2");
+    metric2.setTimestamp(now);
+    metric2.setStartTime(now - 1000);
+    metric2.setAppId("dummy_app2");
+    metric2.setType("Integer");
+    metric2.setMetricValues(new TreeMap<Long, Double>() {{
+      put(now - 100, 1.0);
+      put(now - 200, 2.0);
+      put(now - 300, 3.0);
+    }});
+    timelineMetrics.getMetrics().add(metric2);
+
+    hdb.insertMetricRecordsWithMetadata(metadataManager, timelineMetrics);
+  }
+
+  @Test
+  public void testSaveMetricsMetadata() throws Exception {
+    Map<TimelineMetricMetadataKey, TimelineMetricMetadata> cachedData = metadataManager.getMetadataCache();
+
+    Assert.assertNotNull(cachedData);
+    Assert.assertEquals(2, cachedData.size());
+    TimelineMetricMetadataKey key1 = new TimelineMetricMetadataKey("dummy_metric1", "dummy_app1");
+    TimelineMetricMetadataKey key2 = new TimelineMetricMetadataKey("dummy_metric2", "dummy_app2");
+    TimelineMetricMetadata value1 = new TimelineMetricMetadata("dummy_metric1",
+      "dummy_app1", "Integer", null, 1L, true);
+    TimelineMetricMetadata value2 = new TimelineMetricMetadata("dummy_metric2",
+      "dummy_app2", "Integer", null, 1L, true);
+
+    Assert.assertEquals(value1, cachedData.get(key1));
+    Assert.assertEquals(value2, cachedData.get(key2));
+
+    TimelineMetricMetadataSync syncRunnable = new TimelineMetricMetadataSync(metadataManager);
+    syncRunnable.run();
+
+    Map<TimelineMetricMetadataKey, TimelineMetricMetadata> savedData =
+      hdb.getTimelineMetricMetadata();
+
+    Assert.assertNotNull(savedData);
+    Assert.assertEquals(2, savedData.size());
+    Assert.assertEquals(value1, savedData.get(key1));
+    Assert.assertEquals(value2, savedData.get(key2));
+
+    Map<String, Set<String>> cachedHostData = metadataManager.getHostedAppsCache();
+    Map<String, Set<String>> savedHostData = metadataManager.getPersistedHostedAppsData();
+    Assert.assertEquals(cachedData.size(), savedData.size());
+    Assert.assertEquals("dummy_app1", cachedHostData.get("dummy_host1").iterator().next());
+    Assert.assertEquals("dummy_app2", cachedHostData.get("dummy_host2").iterator().next());
+    Assert.assertEquals("dummy_app1", savedHostData.get("dummy_host1").iterator().next());
+    Assert.assertEquals("dummy_app2", savedHostData.get("dummy_host2").iterator().next());
+  }
+
+
+}