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From sj...@apache.org
Subject [1/4] hadoop git commit: YARN-4765 Split TestHBaseTimelineStorage into multiple test classes (Varun Saxena via Vrushali C)
Date Thu, 27 Oct 2016 22:38:06 GMT
Repository: hadoop
Updated Branches:
  refs/heads/trunk 221582c4a -> 022bf783a


http://git-wip-us.apache.org/repos/asf/hadoop/blob/022bf783/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase-tests/src/test/java/org/apache/hadoop/yarn/server/timelineservice/storage/TestHBaseTimelineStorageEntities.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase-tests/src/test/java/org/apache/hadoop/yarn/server/timelineservice/storage/TestHBaseTimelineStorageEntities.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase-tests/src/test/java/org/apache/hadoop/yarn/server/timelineservice/storage/TestHBaseTimelineStorageEntities.java
new file mode 100644
index 0000000..3076709
--- /dev/null
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase-tests/src/test/java/org/apache/hadoop/yarn/server/timelineservice/storage/TestHBaseTimelineStorageEntities.java
@@ -0,0 +1,1675 @@
+/**
+ * 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.yarn.server.timelineservice.storage;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.NavigableMap;
+import java.util.NavigableSet;
+import java.util.Set;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.client.Connection;
+import org.apache.hadoop.hbase.client.ConnectionFactory;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.client.ResultScanner;
+import org.apache.hadoop.hbase.client.Scan;
+import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.api.records.timelineservice.ApplicationEntity;
+import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntities;
+import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntity;
+import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEvent;
+import org.apache.hadoop.yarn.api.records.timelineservice.TimelineMetric;
+import org.apache.hadoop.yarn.api.records.timelineservice.TimelineMetric.Type;
+import org.apache.hadoop.yarn.server.metrics.ApplicationMetricsConstants;
+import org.apache.hadoop.yarn.server.timelineservice.reader.TimelineDataToRetrieve;
+import org.apache.hadoop.yarn.server.timelineservice.reader.TimelineEntityFilters;
+import org.apache.hadoop.yarn.server.timelineservice.reader.TimelineReaderContext;
+import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineCompareFilter;
+import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineCompareOp;
+import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineExistsFilter;
+import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineFilterList;
+import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineFilterList.Operator;
+import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineKeyValueFilter;
+import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineKeyValuesFilter;
+import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelinePrefixFilter;
+import org.apache.hadoop.yarn.server.timelineservice.storage.TimelineReader.Field;
+import org.apache.hadoop.yarn.server.timelineservice.storage.common.EventColumnName;
+import org.apache.hadoop.yarn.server.timelineservice.storage.common.EventColumnNameConverter;
+import org.apache.hadoop.yarn.server.timelineservice.storage.common.KeyConverter;
+import org.apache.hadoop.yarn.server.timelineservice.storage.common.Separator;
+import org.apache.hadoop.yarn.server.timelineservice.storage.common.StringKeyConverter;
+import org.apache.hadoop.yarn.server.timelineservice.storage.entity.EntityColumn;
+import org.apache.hadoop.yarn.server.timelineservice.storage.entity.EntityColumnFamily;
+import org.apache.hadoop.yarn.server.timelineservice.storage.entity.EntityColumnPrefix;
+import org.apache.hadoop.yarn.server.timelineservice.storage.entity.EntityRowKey;
+import org.apache.hadoop.yarn.server.timelineservice.storage.entity.EntityRowKeyPrefix;
+import org.apache.hadoop.yarn.server.timelineservice.storage.entity.EntityTable;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * Various tests to test writing entities to HBase and reading them back from
+ * it.
+ *
+ * It uses a single HBase mini-cluster for all tests which is a little more
+ * realistic, and helps test correctness in the presence of other data.
+ *
+ * Each test uses a different cluster name to be able to handle its own data
+ * even if other records exist in the table. Use a different cluster name if
+ * you add a new test.
+ */
+public class TestHBaseTimelineStorageEntities {
+
+  private static HBaseTestingUtility util;
+  private HBaseTimelineReaderImpl reader;
+
+  @BeforeClass
+  public static void setupBeforeClass() throws Exception {
+    util = new HBaseTestingUtility();
+    util.startMiniCluster();
+    createSchema();
+    DataGeneratorForTest.loadEntities(util);
+  }
+
+  private static void createSchema() throws IOException {
+    TimelineSchemaCreator.createAllTables(util.getConfiguration(), false);
+  }
+
+  @Before
+  public void init() throws Exception {
+    reader = new HBaseTimelineReaderImpl();
+    reader.init(util.getConfiguration());
+    reader.start();
+  }
+
+  @After
+  public void stop() throws Exception {
+    if (reader != null) {
+      reader.stop();
+      reader.close();
+    }
+  }
+
+  private static void matchMetrics(Map<Long, Number> m1, Map<Long, Number> m2) {
+    assertEquals(m1.size(), m2.size());
+    for (Map.Entry<Long, Number> entry : m2.entrySet()) {
+      Number val = m1.get(entry.getKey());
+      assertNotNull(val);
+      assertEquals(val.longValue(), entry.getValue().longValue());
+    }
+  }
+
+  @Test
+  public void testWriteEntityToHBase() throws Exception {
+    TimelineEntities te = new TimelineEntities();
+    TimelineEntity entity = new TimelineEntity();
+    String id = "hello";
+    String type = "world";
+    entity.setId(id);
+    entity.setType(type);
+    Long cTime = 1425016501000L;
+    entity.setCreatedTime(cTime);
+
+    // add the info map in Timeline Entity
+    Map<String, Object> infoMap = new HashMap<String, Object>();
+    infoMap.put("infoMapKey1", "infoMapValue1");
+    infoMap.put("infoMapKey2", 10);
+    entity.addInfo(infoMap);
+
+    // add the isRelatedToEntity info
+    String key = "task";
+    String value = "is_related_to_entity_id_here";
+    Set<String> isRelatedToSet = new HashSet<String>();
+    isRelatedToSet.add(value);
+    Map<String, Set<String>> isRelatedTo = new HashMap<String, Set<String>>();
+    isRelatedTo.put(key, isRelatedToSet);
+    entity.setIsRelatedToEntities(isRelatedTo);
+
+    // add the relatesTo info
+    key = "container";
+    value = "relates_to_entity_id_here";
+    Set<String> relatesToSet = new HashSet<String>();
+    relatesToSet.add(value);
+    value = "relates_to_entity_id_here_Second";
+    relatesToSet.add(value);
+    Map<String, Set<String>> relatesTo = new HashMap<String, Set<String>>();
+    relatesTo.put(key, relatesToSet);
+    entity.setRelatesToEntities(relatesTo);
+
+    // add some config entries
+    Map<String, String> conf = new HashMap<String, String>();
+    conf.put("config_param1", "value1");
+    conf.put("config_param2", "value2");
+    entity.addConfigs(conf);
+
+    // add metrics
+    Set<TimelineMetric> metrics = new HashSet<>();
+    TimelineMetric m1 = new TimelineMetric();
+    m1.setId("MAP_SLOT_MILLIS");
+    Map<Long, Number> metricValues = new HashMap<Long, Number>();
+    long ts = System.currentTimeMillis();
+    metricValues.put(ts - 120000, 100000000);
+    metricValues.put(ts - 100000, 200000000);
+    metricValues.put(ts - 80000, 300000000);
+    metricValues.put(ts - 60000, 400000000);
+    metricValues.put(ts - 40000, 50000000000L);
+    metricValues.put(ts - 20000, 60000000000L);
+    m1.setType(Type.TIME_SERIES);
+    m1.setValues(metricValues);
+    metrics.add(m1);
+    entity.addMetrics(metrics);
+    te.addEntity(entity);
+
+    HBaseTimelineWriterImpl hbi = null;
+    try {
+      Configuration c1 = util.getConfiguration();
+      hbi = new HBaseTimelineWriterImpl(c1);
+      hbi.init(c1);
+      hbi.start();
+      String cluster = "cluster_test_write_entity";
+      String user = "user1";
+      String flow = "some_flow_name";
+      String flowVersion = "AB7822C10F1111";
+      long runid = 1002345678919L;
+      String appName = ApplicationId.newInstance(System.currentTimeMillis() +
+          9000000L, 1).toString();
+      hbi.write(cluster, user, flow, flowVersion, runid, appName, te);
+      hbi.stop();
+
+      // scan the table and see that entity exists
+      Scan s = new Scan();
+      byte[] startRow =
+          new EntityRowKeyPrefix(cluster, user, flow, runid, appName)
+              .getRowKeyPrefix();
+      s.setStartRow(startRow);
+      s.setMaxVersions(Integer.MAX_VALUE);
+      Connection conn = ConnectionFactory.createConnection(c1);
+      ResultScanner scanner = new EntityTable().getResultScanner(c1, conn, s);
+
+      int rowCount = 0;
+      int colCount = 0;
+      KeyConverter<String> stringKeyConverter = new StringKeyConverter();
+      for (Result result : scanner) {
+        if (result != null && !result.isEmpty()) {
+          rowCount++;
+          colCount += result.size();
+          byte[] row1 = result.getRow();
+          assertTrue(isRowKeyCorrect(row1, cluster, user, flow, runid, appName,
+              entity));
+
+          // check info column family
+          String id1 = EntityColumn.ID.readResult(result).toString();
+          assertEquals(id, id1);
+
+          String type1 = EntityColumn.TYPE.readResult(result).toString();
+          assertEquals(type, type1);
+
+          Long cTime1 = (Long) EntityColumn.CREATED_TIME.readResult(result);
+          assertEquals(cTime1, cTime);
+
+          Map<String, Object> infoColumns =
+              EntityColumnPrefix.INFO.readResults(result,
+                  new StringKeyConverter());
+          assertEquals(infoMap, infoColumns);
+
+          // Remember isRelatedTo is of type Map<String, Set<String>>
+          for (Map.Entry<String, Set<String>> isRelatedToEntry : isRelatedTo
+              .entrySet()) {
+            Object isRelatedToValue =
+                EntityColumnPrefix.IS_RELATED_TO.readResult(result,
+                    isRelatedToEntry.getKey());
+            String compoundValue = isRelatedToValue.toString();
+            // id7?id9?id6
+            Set<String> isRelatedToValues =
+                new HashSet<String>(
+                    Separator.VALUES.splitEncoded(compoundValue));
+            assertEquals(isRelatedTo.get(isRelatedToEntry.getKey()).size(),
+                isRelatedToValues.size());
+            for (String v : isRelatedToEntry.getValue()) {
+              assertTrue(isRelatedToValues.contains(v));
+            }
+          }
+
+          // RelatesTo
+          for (Map.Entry<String, Set<String>> relatesToEntry : relatesTo
+              .entrySet()) {
+            String compoundValue = EntityColumnPrefix.RELATES_TO
+                .readResult(result, relatesToEntry.getKey()).toString();
+            // id3?id4?id5
+            Set<String> relatesToValues =
+                new HashSet<String>(
+                    Separator.VALUES.splitEncoded(compoundValue));
+            assertEquals(relatesTo.get(relatesToEntry.getKey()).size(),
+                relatesToValues.size());
+            for (String v : relatesToEntry.getValue()) {
+              assertTrue(relatesToValues.contains(v));
+            }
+          }
+
+          // Configuration
+          Map<String, Object> configColumns =
+              EntityColumnPrefix.CONFIG.readResults(result, stringKeyConverter);
+          assertEquals(conf, configColumns);
+
+          NavigableMap<String, NavigableMap<Long, Number>> metricsResult =
+              EntityColumnPrefix.METRIC.readResultsWithTimestamps(result,
+                  stringKeyConverter);
+
+          NavigableMap<Long, Number> metricMap = metricsResult.get(m1.getId());
+          matchMetrics(metricValues, metricMap);
+        }
+      }
+      assertEquals(1, rowCount);
+      assertEquals(16, colCount);
+
+      // read the timeline entity using the reader this time
+      TimelineEntity e1 = reader.getEntity(
+          new TimelineReaderContext(cluster, user, flow, runid, appName,
+          entity.getType(), entity.getId()),
+          new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL),
+          Integer.MAX_VALUE));
+      Set<TimelineEntity> es1 = reader.getEntities(
+          new TimelineReaderContext(cluster, user, flow, runid, appName,
+          entity.getType(), null),
+          new TimelineEntityFilters(),
+          new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL),
+          Integer.MAX_VALUE));
+      assertNotNull(e1);
+      assertEquals(1, es1.size());
+
+      // verify attributes
+      assertEquals(id, e1.getId());
+      assertEquals(type, e1.getType());
+      assertEquals(cTime, e1.getCreatedTime());
+      Map<String, Object> infoMap2 = e1.getInfo();
+      assertEquals(infoMap, infoMap2);
+
+      Map<String, Set<String>> isRelatedTo2 = e1.getIsRelatedToEntities();
+      assertEquals(isRelatedTo, isRelatedTo2);
+
+      Map<String, Set<String>> relatesTo2 = e1.getRelatesToEntities();
+      assertEquals(relatesTo, relatesTo2);
+
+      Map<String, String> conf2 = e1.getConfigs();
+      assertEquals(conf, conf2);
+
+      Set<TimelineMetric> metrics2 = e1.getMetrics();
+      assertEquals(metrics, metrics2);
+      for (TimelineMetric metric2 : metrics2) {
+        Map<Long, Number> metricValues2 = metric2.getValues();
+        matchMetrics(metricValues, metricValues2);
+      }
+
+      e1 = reader.getEntity(new TimelineReaderContext(cluster, user, flow,
+          runid, appName, entity.getType(), entity.getId()),
+          new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+      assertNotNull(e1);
+      assertEquals(id, e1.getId());
+      assertEquals(type, e1.getType());
+      assertEquals(cTime, e1.getCreatedTime());
+      assertEquals(infoMap, e1.getInfo());
+      assertEquals(isRelatedTo, e1.getIsRelatedToEntities());
+      assertEquals(relatesTo, e1.getRelatesToEntities());
+      assertEquals(conf, e1.getConfigs());
+      for (TimelineMetric metric : e1.getMetrics()) {
+        assertEquals(TimelineMetric.Type.SINGLE_VALUE, metric.getType());
+        assertEquals(1, metric.getValues().size());
+        assertTrue(metric.getValues().containsKey(ts - 20000));
+        assertEquals(metricValues.get(ts - 20000),
+            metric.getValues().get(ts - 20000));
+      }
+    } finally {
+      if (hbi != null) {
+        hbi.stop();
+        hbi.close();
+      }
+    }
+  }
+
+  private boolean isRowKeyCorrect(byte[] rowKey, String cluster, String user,
+      String flow, Long runid, String appName, TimelineEntity te) {
+
+    EntityRowKey key = EntityRowKey.parseRowKey(rowKey);
+
+    assertEquals(user, key.getUserId());
+    assertEquals(cluster, key.getClusterId());
+    assertEquals(flow, key.getFlowName());
+    assertEquals(runid, key.getFlowRunId());
+    assertEquals(appName, key.getAppId());
+    assertEquals(te.getType(), key.getEntityType());
+    assertEquals(te.getId(), key.getEntityId());
+    return true;
+  }
+
+  @Test
+  public void testEventsWithEmptyInfo() throws IOException {
+    TimelineEvent event = new TimelineEvent();
+    String eventId = "foo_ev e  nt_id";
+    event.setId(eventId);
+    Long expTs = 1436512802000L;
+    event.setTimestamp(expTs);
+
+    final TimelineEntity entity = new TimelineEntity();
+    entity.setId("attempt_1329348432655_0001_m_000008_18");
+    entity.setType("FOO_ATTEMPT");
+    entity.addEvent(event);
+
+    TimelineEntities entities = new TimelineEntities();
+    entities.addEntity(entity);
+
+    HBaseTimelineWriterImpl hbi = null;
+    try {
+      Configuration c1 = util.getConfiguration();
+      hbi = new HBaseTimelineWriterImpl(c1);
+      hbi.init(c1);
+      hbi.start();
+      String cluster = "cluster_test_empty_eventkey";
+      String user = "user_emptyeventkey";
+      String flow = "other_flow_name";
+      String flowVersion = "1111F01C2287BA";
+      long runid = 1009876543218L;
+      String appName = ApplicationId.newInstance(System.currentTimeMillis() +
+          9000000L, 1).toString();
+      byte[] startRow =
+          new EntityRowKeyPrefix(cluster, user, flow, runid, appName)
+              .getRowKeyPrefix();
+      hbi.write(cluster, user, flow, flowVersion, runid, appName, entities);
+      hbi.stop();
+      // scan the table and see that entity exists
+      Scan s = new Scan();
+      s.setStartRow(startRow);
+      s.addFamily(EntityColumnFamily.INFO.getBytes());
+      Connection conn = ConnectionFactory.createConnection(c1);
+      ResultScanner scanner = new EntityTable().getResultScanner(c1, conn, s);
+
+      int rowCount = 0;
+      for (Result result : scanner) {
+        if (result != null && !result.isEmpty()) {
+          rowCount++;
+
+          // check the row key
+          byte[] row1 = result.getRow();
+          assertTrue(isRowKeyCorrect(row1, cluster, user, flow, runid, appName,
+              entity));
+
+          Map<EventColumnName, Object> eventsResult =
+              EntityColumnPrefix.EVENT.readResults(result,
+                  new EventColumnNameConverter());
+          // there should be only one event
+          assertEquals(1, eventsResult.size());
+          for (Map.Entry<EventColumnName, Object> e : eventsResult.entrySet()) {
+            EventColumnName eventColumnName = e.getKey();
+            // the qualifier is a compound key
+            // hence match individual values
+            assertEquals(eventId, eventColumnName.getId());
+            assertEquals(expTs, eventColumnName.getTimestamp());
+            // key must be empty
+            assertNull(eventColumnName.getInfoKey());
+            Object value = e.getValue();
+            // value should be empty
+            assertEquals("", value.toString());
+          }
+        }
+      }
+      assertEquals(1, rowCount);
+
+      // read the timeline entity using the reader this time
+      TimelineEntity e1 = reader.getEntity(
+          new TimelineReaderContext(cluster, user, flow, runid, appName,
+          entity.getType(), entity.getId()),
+          new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+      Set<TimelineEntity> es1 = reader.getEntities(
+          new TimelineReaderContext(cluster, user, flow, runid, appName,
+          entity.getType(), null),
+          new TimelineEntityFilters(),
+          new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+      assertNotNull(e1);
+      assertEquals(1, es1.size());
+
+      // check the events
+      NavigableSet<TimelineEvent> events = e1.getEvents();
+      // there should be only one event
+      assertEquals(1, events.size());
+      for (TimelineEvent e : events) {
+        assertEquals(eventId, e.getId());
+        assertEquals(expTs, Long.valueOf(e.getTimestamp()));
+        Map<String, Object> info = e.getInfo();
+        assertTrue(info == null || info.isEmpty());
+      }
+    } finally {
+      if (hbi != null) {
+        hbi.stop();
+        hbi.close();
+      }
+    }
+  }
+
+  @Test
+  public void testEventsEscapeTs() throws IOException {
+    TimelineEvent event = new TimelineEvent();
+    String eventId = ApplicationMetricsConstants.CREATED_EVENT_TYPE;
+    event.setId(eventId);
+    long expTs = 1463567041056L;
+    event.setTimestamp(expTs);
+    String expKey = "f==o o_e ve\tnt";
+    Object expVal = "test";
+    event.addInfo(expKey, expVal);
+
+    final TimelineEntity entity = new ApplicationEntity();
+    entity.setId(ApplicationId.newInstance(0, 1).toString());
+    entity.addEvent(event);
+
+    TimelineEntities entities = new TimelineEntities();
+    entities.addEntity(entity);
+
+    HBaseTimelineWriterImpl hbi = null;
+    try {
+      Configuration c1 = util.getConfiguration();
+      hbi = new HBaseTimelineWriterImpl(c1);
+      hbi.init(c1);
+      hbi.start();
+      String cluster = "clus!ter_\ttest_ev  ents";
+      String user = "user2";
+      String flow = "other_flow_name";
+      String flowVersion = "1111F01C2287BA";
+      long runid = 1009876543218L;
+      String appName = "application_123465899910_2001";
+      hbi.write(cluster, user, flow, flowVersion, runid, appName, entities);
+      hbi.stop();
+
+      // read the timeline entity using the reader this time
+      TimelineEntity e1 = reader.getEntity(
+          new TimelineReaderContext(cluster, user, flow, runid, appName,
+          entity.getType(), entity.getId()),
+          new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+      assertNotNull(e1);
+      // check the events
+      NavigableSet<TimelineEvent> events = e1.getEvents();
+      // there should be only one event
+      assertEquals(1, events.size());
+      for (TimelineEvent e : events) {
+        assertEquals(eventId, e.getId());
+        assertEquals(expTs, e.getTimestamp());
+        Map<String, Object> info = e.getInfo();
+        assertEquals(1, info.size());
+        for (Map.Entry<String, Object> infoEntry : info.entrySet()) {
+          assertEquals(expKey, infoEntry.getKey());
+          assertEquals(expVal, infoEntry.getValue());
+        }
+      }
+    } finally {
+      if (hbi != null) {
+        hbi.stop();
+        hbi.close();
+      }
+    }
+  }
+
+  @Test
+  public void testReadEntities() throws Exception {
+    TimelineEntity entity = reader.getEntity(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", "hello"),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+    assertNotNull(entity);
+    assertEquals(3, entity.getConfigs().size());
+    assertEquals(1, entity.getIsRelatedToEntities().size());
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world",
+        null), new TimelineEntityFilters(),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+    assertEquals(3, entities.size());
+    int cfgCnt = 0;
+    int metricCnt = 0;
+    int infoCnt = 0;
+    int eventCnt = 0;
+    int relatesToCnt = 0;
+    int isRelatedToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      cfgCnt += (timelineEntity.getConfigs() == null) ? 0 :
+          timelineEntity.getConfigs().size();
+      metricCnt += (timelineEntity.getMetrics() == null) ? 0 :
+          timelineEntity.getMetrics().size();
+      infoCnt += (timelineEntity.getInfo() == null) ? 0 :
+          timelineEntity.getInfo().size();
+      eventCnt += (timelineEntity.getEvents() == null) ? 0 :
+          timelineEntity.getEvents().size();
+      relatesToCnt += (timelineEntity.getRelatesToEntities() == null) ? 0 :
+          timelineEntity.getRelatesToEntities().size();
+      isRelatedToCnt += (timelineEntity.getIsRelatedToEntities() == null) ? 0 :
+          timelineEntity.getIsRelatedToEntities().size();
+    }
+    assertEquals(5, cfgCnt);
+    assertEquals(3, metricCnt);
+    assertEquals(5, infoCnt);
+    assertEquals(4, eventCnt);
+    assertEquals(4, relatesToCnt);
+    assertEquals(4, isRelatedToCnt);
+  }
+
+  @Test
+  public void testFilterEntitiesByCreatedTime() throws Exception {
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, 1425016502000L, 1425016502040L, null,
+        null, null, null, null, null), new TimelineDataToRetrieve());
+    assertEquals(3, entities.size());
+    for (TimelineEntity entity : entities) {
+      if (!entity.getId().equals("hello") && !entity.getId().equals("hello1") &&
+          !entity.getId().equals("hello2")) {
+        Assert.fail("Entities with ids' hello, hello1 and hello2 should be" +
+            " present");
+      }
+    }
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, 1425016502015L, null, null, null, null,
+        null, null, null), new TimelineDataToRetrieve());
+    assertEquals(2, entities.size());
+    for (TimelineEntity entity : entities) {
+      if (!entity.getId().equals("hello1") &&
+          !entity.getId().equals("hello2")) {
+        Assert.fail("Entities with ids' hello1 and hello2 should be present");
+      }
+    }
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world",  null),
+        new TimelineEntityFilters(null, null, 1425016502015L, null, null, null,
+        null, null, null), new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    for (TimelineEntity entity : entities) {
+      if (!entity.getId().equals("hello")) {
+        Assert.fail("Entity with id hello should be present");
+      }
+    }
+  }
+
+  @Test
+  public void testReadEntitiesRelationsAndEventFiltersDefaultView()
+      throws Exception {
+    TimelineFilterList eventFilter = new TimelineFilterList();
+    eventFilter.addFilter(new TimelineExistsFilter(TimelineCompareOp.NOT_EQUAL,
+        "end_event"));
+    TimelineFilterList relatesTo = new TimelineFilterList(Operator.OR);
+    relatesTo.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container2",
+        new HashSet<Object>(Arrays.asList("relatesto7"))));
+    relatesTo.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container1",
+        new HashSet<Object>(Arrays.asList("relatesto4"))));
+    TimelineFilterList isRelatedTo = new TimelineFilterList();
+    isRelatedTo.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task1",
+        new HashSet<Object>(Arrays.asList("relatedto3"))));
+    isRelatedTo.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.NOT_EQUAL, "task1",
+        new HashSet<Object>(Arrays.asList("relatedto5"))));
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, relatesTo, isRelatedTo,
+        null, null, null, eventFilter), new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    int eventCnt = 0;
+    int isRelatedToCnt = 0;
+    int relatesToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      eventCnt += timelineEntity.getEvents().size();
+      isRelatedToCnt += timelineEntity.getIsRelatedToEntities().size();
+      relatesToCnt += timelineEntity.getRelatesToEntities().size();
+      if (!timelineEntity.getId().equals("hello2")) {
+        Assert.fail("Entity id should have been hello2");
+      }
+    }
+    assertEquals(0, eventCnt);
+    assertEquals(0, isRelatedToCnt);
+    assertEquals(0, relatesToCnt);
+  }
+
+  @Test
+  public void testReadEntitiesEventFilters() throws Exception {
+    TimelineFilterList ef = new TimelineFilterList();
+    ef.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.EQUAL, "update_event"));
+    ef.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.NOT_EQUAL, "end_event"));
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        null, ef),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+    assertEquals(1, entities.size());
+    int eventCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      eventCnt += timelineEntity.getEvents().size();
+      if (!timelineEntity.getId().equals("hello2")) {
+        Assert.fail("Entity id should have been hello2");
+      }
+    }
+    assertEquals(1, eventCnt);
+
+    TimelineFilterList ef1 = new TimelineFilterList();
+    ef1.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.EQUAL, "update_event"));
+    ef1.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.NOT_EQUAL, "end_event"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        null, ef1),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    eventCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      eventCnt += timelineEntity.getEvents().size();
+      if (!timelineEntity.getId().equals("hello2")) {
+        Assert.fail("Entity id should have been hello2");
+      }
+    }
+    assertEquals(0, eventCnt);
+
+    TimelineFilterList ef2 = new TimelineFilterList();
+    ef2.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.NOT_EQUAL, "end_event"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        null, ef2),
+        new TimelineDataToRetrieve());
+    assertEquals(2, entities.size());
+    eventCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      eventCnt += timelineEntity.getEvents().size();
+      if (!timelineEntity.getId().equals("hello") &&
+          !timelineEntity.getId().equals("hello2")) {
+        Assert.fail("Entity ids' should have been hello and hello2");
+      }
+    }
+    assertEquals(0, eventCnt);
+
+    TimelineFilterList ef3 = new TimelineFilterList();
+    ef3.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.EQUAL, "update_event"));
+    ef3.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.EQUAL, "dummy_event"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        null, ef3),
+        new TimelineDataToRetrieve());
+    assertEquals(0, entities.size());
+
+    TimelineFilterList list1 = new TimelineFilterList();
+    list1.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.EQUAL, "update_event"));
+    list1.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.EQUAL, "dummy_event"));
+    TimelineFilterList list2 = new TimelineFilterList();
+    list2.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.EQUAL, "start_event"));
+    TimelineFilterList ef4 = new TimelineFilterList(Operator.OR, list1, list2);
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        null, ef4),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    eventCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      eventCnt += timelineEntity.getEvents().size();
+      if (!timelineEntity.getId().equals("hello")) {
+        Assert.fail("Entity id should have been hello");
+      }
+    }
+    assertEquals(0, eventCnt);
+
+    TimelineFilterList ef5 = new TimelineFilterList();
+    ef5.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.NOT_EQUAL, "update_event"));
+    ef5.addFilter(new TimelineExistsFilter(
+        TimelineCompareOp.NOT_EQUAL, "end_event"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        null, ef5),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    eventCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      eventCnt += timelineEntity.getEvents().size();
+      if (!timelineEntity.getId().equals("hello")) {
+        Assert.fail("Entity id should have been hello");
+      }
+    }
+    assertEquals(0, eventCnt);
+  }
+
+  @Test
+  public void testReadEntitiesIsRelatedTo() throws Exception {
+    TimelineFilterList irt = new TimelineFilterList(Operator.OR);
+    irt.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task",
+        new HashSet<Object>(Arrays.asList("relatedto1"))));
+    irt.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task2",
+        new HashSet<Object>(Arrays.asList("relatedto4"))));
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, irt, null, null, null,
+        null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+    assertEquals(2, entities.size());
+    int isRelatedToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      isRelatedToCnt += timelineEntity.getIsRelatedToEntities().size();
+      if (!timelineEntity.getId().equals("hello") &&
+          !timelineEntity.getId().equals("hello1")) {
+        Assert.fail("Entity ids' should have been hello and hello1");
+      }
+    }
+    assertEquals(3, isRelatedToCnt);
+
+    TimelineFilterList irt1 = new TimelineFilterList();
+    irt1.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task1",
+        new HashSet<Object>(Arrays.asList("relatedto3"))));
+    irt1.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.NOT_EQUAL, "task1",
+        new HashSet<Object>(Arrays.asList("relatedto5"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, irt1, null, null,
+        null, null),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    isRelatedToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      isRelatedToCnt += timelineEntity.getIsRelatedToEntities().size();
+      if (!timelineEntity.getId().equals("hello2")) {
+        Assert.fail("Entity id should have been hello2");
+      }
+    }
+    assertEquals(0, isRelatedToCnt);
+
+    TimelineFilterList irt2 = new TimelineFilterList(Operator.OR);
+    irt2.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task",
+        new HashSet<Object>(Arrays.asList("relatedto1"))));
+    irt2.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task2",
+        new HashSet<Object>(Arrays.asList("relatedto4"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, irt2, null, null,
+        null, null),
+        new TimelineDataToRetrieve());
+    assertEquals(2, entities.size());
+    isRelatedToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      isRelatedToCnt += timelineEntity.getIsRelatedToEntities().size();
+      if (!timelineEntity.getId().equals("hello") &&
+          !timelineEntity.getId().equals("hello1")) {
+        Assert.fail("Entity ids' should have been hello and hello1");
+      }
+    }
+    assertEquals(0, isRelatedToCnt);
+
+    TimelineFilterList irt3 = new TimelineFilterList();
+    irt3.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task1",
+        new HashSet<Object>(Arrays.asList("relatedto3", "relatedto5"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, irt3, null, null,
+        null, null),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    isRelatedToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      isRelatedToCnt += timelineEntity.getIsRelatedToEntities().size();
+      if (!timelineEntity.getId().equals("hello1")) {
+        Assert.fail("Entity id should have been hello1");
+      }
+    }
+    assertEquals(0, isRelatedToCnt);
+
+    TimelineFilterList irt4 = new TimelineFilterList();
+    irt4.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task1",
+        new HashSet<Object>(Arrays.asList("relatedto3"))));
+    irt4.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "dummy_task",
+        new HashSet<Object>(Arrays.asList("relatedto5"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, irt4, null, null,
+        null, null),
+        new TimelineDataToRetrieve());
+    assertEquals(0, entities.size());
+
+    TimelineFilterList irt5 = new TimelineFilterList();
+    irt5.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task1",
+        new HashSet<Object>(Arrays.asList("relatedto3", "relatedto7"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, irt5, null, null,
+        null, null),
+        new TimelineDataToRetrieve());
+    assertEquals(0, entities.size());
+
+    TimelineFilterList list1 = new TimelineFilterList();
+    list1.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task",
+        new HashSet<Object>(Arrays.asList("relatedto1"))));
+    list1.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "dummy_task",
+        new HashSet<Object>(Arrays.asList("relatedto4"))));
+    TimelineFilterList list2 = new TimelineFilterList();
+    list2.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "task2",
+        new HashSet<Object>(Arrays.asList("relatedto4"))));
+    TimelineFilterList irt6 = new TimelineFilterList(Operator.OR, list1, list2);
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, irt6, null, null,
+        null, null),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    isRelatedToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      isRelatedToCnt += timelineEntity.getIsRelatedToEntities().size();
+      if (!timelineEntity.getId().equals("hello1")) {
+        Assert.fail("Entity id should have been hello1");
+      }
+    }
+    assertEquals(0, isRelatedToCnt);
+  }
+
+  @Test
+  public void testReadEntitiesRelatesTo() throws Exception {
+    TimelineFilterList rt = new TimelineFilterList(Operator.OR);
+    rt.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container2",
+        new HashSet<Object>(Arrays.asList("relatesto7"))));
+    rt.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container1",
+        new HashSet<Object>(Arrays.asList("relatesto4"))));
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, rt, null, null, null, null,
+        null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+    assertEquals(2, entities.size());
+    int relatesToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      relatesToCnt += timelineEntity.getRelatesToEntities().size();
+      if (!timelineEntity.getId().equals("hello") &&
+          !timelineEntity.getId().equals("hello2")) {
+        Assert.fail("Entity ids' should have been hello and hello2");
+      }
+    }
+    assertEquals(3, relatesToCnt);
+
+    TimelineFilterList rt1 = new TimelineFilterList();
+    rt1.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container",
+        new HashSet<Object>(Arrays.asList("relatesto1"))));
+    rt1.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.NOT_EQUAL, "container",
+        new HashSet<Object>(Arrays.asList("relatesto3"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, rt1, null, null, null, null,
+        null),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    relatesToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      relatesToCnt += timelineEntity.getRelatesToEntities().size();
+      if (!timelineEntity.getId().equals("hello1")) {
+        Assert.fail("Entity id should have been hello1");
+      }
+    }
+    assertEquals(0, relatesToCnt);
+
+    TimelineFilterList rt2 = new TimelineFilterList(Operator.OR);
+    rt2.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container2",
+        new HashSet<Object>(Arrays.asList("relatesto7"))));
+    rt2.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container1",
+        new HashSet<Object>(Arrays.asList("relatesto4"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, rt2, null, null, null, null,
+        null),
+        new TimelineDataToRetrieve());
+    assertEquals(2, entities.size());
+    relatesToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      relatesToCnt += timelineEntity.getRelatesToEntities().size();
+      if (!timelineEntity.getId().equals("hello") &&
+          !timelineEntity.getId().equals("hello2")) {
+        Assert.fail("Entity ids' should have been hello and hello2");
+      }
+    }
+    assertEquals(0, relatesToCnt);
+
+    TimelineFilterList rt3 = new TimelineFilterList();
+    rt3.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container",
+        new HashSet<Object>(Arrays.asList("relatesto1", "relatesto3"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, rt3, null, null, null, null,
+        null),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    relatesToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      relatesToCnt += timelineEntity.getRelatesToEntities().size();
+      if (!timelineEntity.getId().equals("hello")) {
+        Assert.fail("Entity id should have been hello");
+      }
+    }
+    assertEquals(0, relatesToCnt);
+
+    TimelineFilterList rt4 = new TimelineFilterList();
+    rt4.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container",
+        new HashSet<Object>(Arrays.asList("relatesto1"))));
+    rt4.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "dummy_container",
+        new HashSet<Object>(Arrays.asList("relatesto5"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, rt4, null, null, null, null,
+        null),
+        new TimelineDataToRetrieve());
+    assertEquals(0, entities.size());
+
+    TimelineFilterList rt5 = new TimelineFilterList();
+    rt5.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container",
+        new HashSet<Object>(Arrays.asList("relatedto1", "relatesto8"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, rt5, null, null, null, null,
+        null),
+        new TimelineDataToRetrieve());
+    assertEquals(0, entities.size());
+
+    TimelineFilterList list1 = new TimelineFilterList();
+    list1.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container2",
+        new HashSet<Object>(Arrays.asList("relatesto7"))));
+    list1.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "dummy_container",
+        new HashSet<Object>(Arrays.asList("relatesto4"))));
+    TimelineFilterList list2 = new TimelineFilterList();
+    list2.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container1",
+        new HashSet<Object>(Arrays.asList("relatesto4"))));
+    TimelineFilterList rt6 = new TimelineFilterList(Operator.OR, list1, list2);
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, rt6, null, null, null, null,
+        null),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    relatesToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      relatesToCnt += timelineEntity.getRelatesToEntities().size();
+      if (!timelineEntity.getId().equals("hello")) {
+        Assert.fail("Entity id should have been hello");
+      }
+    }
+    assertEquals(0, relatesToCnt);
+
+    TimelineFilterList list3 = new TimelineFilterList();
+    list3.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container",
+        new HashSet<Object>(Arrays.asList("relatesto1"))));
+    list3.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container1",
+        new HashSet<Object>(Arrays.asList("relatesto4"))));
+    TimelineFilterList list4 = new TimelineFilterList();
+    list4.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container",
+        new HashSet<Object>(Arrays.asList("relatesto1"))));
+    list4.addFilter(new TimelineKeyValuesFilter(
+        TimelineCompareOp.EQUAL, "container",
+        new HashSet<Object>(Arrays.asList("relatesto2"))));
+    TimelineFilterList combinedList =
+        new TimelineFilterList(Operator.OR, list3, list4);
+    TimelineFilterList rt7 = new TimelineFilterList(Operator.AND, combinedList,
+        new TimelineKeyValuesFilter(
+        TimelineCompareOp.NOT_EQUAL, "container",
+        new HashSet<Object>(Arrays.asList("relatesto3"))));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, rt7, null, null, null, null,
+        null),
+        new TimelineDataToRetrieve());
+    assertEquals(1, entities.size());
+    relatesToCnt = 0;
+    for (TimelineEntity timelineEntity : entities) {
+      relatesToCnt += timelineEntity.getRelatesToEntities().size();
+      if (!timelineEntity.getId().equals("hello1")) {
+        Assert.fail("Entity id should have been hello1");
+      }
+    }
+    assertEquals(0, relatesToCnt);
+  }
+
+  @Test
+  public void testReadEntitiesDefaultView() throws Exception {
+    TimelineEntity e1 = reader.getEntity(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", "hello"),
+        new TimelineDataToRetrieve());
+    assertNotNull(e1);
+    assertTrue(e1.getInfo().isEmpty() && e1.getConfigs().isEmpty() &&
+        e1.getMetrics().isEmpty() && e1.getIsRelatedToEntities().isEmpty() &&
+        e1.getRelatesToEntities().isEmpty());
+    Set<TimelineEntity> es1 = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(),
+        new TimelineDataToRetrieve());
+    assertEquals(3, es1.size());
+    for (TimelineEntity e : es1) {
+      assertTrue(e.getInfo().isEmpty() && e.getConfigs().isEmpty() &&
+          e.getMetrics().isEmpty() && e.getIsRelatedToEntities().isEmpty() &&
+          e.getRelatesToEntities().isEmpty());
+    }
+  }
+
+  @Test
+  public void testReadEntitiesByFields() throws Exception {
+    TimelineEntity e1 = reader.getEntity(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", "hello"),
+        new TimelineDataToRetrieve(
+        null, null, EnumSet.of(Field.INFO, Field.CONFIGS), null));
+    assertNotNull(e1);
+    assertEquals(3, e1.getConfigs().size());
+    assertEquals(0, e1.getIsRelatedToEntities().size());
+    Set<TimelineEntity> es1 = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(),
+        new TimelineDataToRetrieve(
+        null, null, EnumSet.of(Field.IS_RELATED_TO, Field.METRICS), null));
+    assertEquals(3, es1.size());
+    int metricsCnt = 0;
+    int isRelatedToCnt = 0;
+    int infoCnt = 0;
+    for (TimelineEntity entity : es1) {
+      metricsCnt += entity.getMetrics().size();
+      isRelatedToCnt += entity.getIsRelatedToEntities().size();
+      infoCnt += entity.getInfo().size();
+    }
+    assertEquals(0, infoCnt);
+    assertEquals(4, isRelatedToCnt);
+    assertEquals(3, metricsCnt);
+  }
+
+  @Test
+  public void testReadEntitiesConfigPrefix() throws Exception {
+    TimelineFilterList list =
+        new TimelineFilterList(Operator.OR,
+            new TimelinePrefixFilter(TimelineCompareOp.EQUAL, "cfg_"));
+    TimelineEntity e1 = reader.getEntity(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", "hello"),
+        new TimelineDataToRetrieve(list, null, null, null));
+    assertNotNull(e1);
+    assertEquals(1, e1.getConfigs().size());
+    Set<TimelineEntity> es1 = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(),
+        new TimelineDataToRetrieve(list, null, null, null));
+    int cfgCnt = 0;
+    for (TimelineEntity entity : es1) {
+      cfgCnt += entity.getConfigs().size();
+      for (String confKey : entity.getConfigs().keySet()) {
+        assertTrue("Config key returned should start with cfg_",
+            confKey.startsWith("cfg_"));
+      }
+    }
+    assertEquals(3, cfgCnt);
+  }
+
+  @Test
+  public void testReadEntitiesConfigFilters() throws Exception {
+    TimelineFilterList list1 = new TimelineFilterList();
+    list1.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "cfg_param1", "value1"));
+    list1.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "cfg_param2", "value2"));
+    TimelineFilterList list2 = new TimelineFilterList();
+    list2.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "cfg_param1", "value3"));
+    list2.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "config_param2", "value2"));
+    TimelineFilterList confFilterList =
+        new TimelineFilterList(Operator.OR, list1, list2);
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null,
+        confFilterList, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.CONFIGS),
+        null));
+    assertEquals(2, entities.size());
+    int cfgCnt = 0;
+    for (TimelineEntity entity : entities) {
+      cfgCnt += entity.getConfigs().size();
+    }
+    assertEquals(5, cfgCnt);
+
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null,
+        confFilterList, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+    assertEquals(2, entities.size());
+    cfgCnt = 0;
+    for (TimelineEntity entity : entities) {
+      cfgCnt += entity.getConfigs().size();
+    }
+    assertEquals(5, cfgCnt);
+
+    TimelineFilterList confFilterList1 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "cfg_param1", "value1"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null,
+        confFilterList1, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.CONFIGS),
+        null));
+    assertEquals(1, entities.size());
+    cfgCnt = 0;
+    for (TimelineEntity entity : entities) {
+      cfgCnt += entity.getConfigs().size();
+    }
+    assertEquals(3, cfgCnt);
+
+    TimelineFilterList confFilterList2 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "cfg_param1", "value1"),
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "config_param2", "value2"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null,
+        confFilterList2, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.CONFIGS),
+        null));
+    assertEquals(0, entities.size());
+
+    TimelineFilterList confFilterList3 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "dummy_config", "value1"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null,
+        confFilterList3, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.CONFIGS),
+        null));
+    assertEquals(0, entities.size());
+
+    TimelineFilterList confFilterList4 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "dummy_config", "value1"));
+    entities = reader.getEntities(
+            new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+            1002345678919L, "application_1231111111_1111", "world", null),
+            new TimelineEntityFilters(null, null, null, null, null, null,
+            confFilterList4, null, null),
+            new TimelineDataToRetrieve(null, null, EnumSet.of(Field.CONFIGS),
+            null));
+    assertEquals(0, entities.size());
+
+    TimelineFilterList confFilterList5 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "dummy_config", "value1", false));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null,
+        confFilterList5, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.CONFIGS),
+        null));
+    assertEquals(3, entities.size());
+  }
+
+  @Test
+  public void testReadEntitiesConfigFilterPrefix() throws Exception {
+    TimelineFilterList confFilterList = new TimelineFilterList();
+    confFilterList.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "cfg_param1", "value1"));
+    TimelineFilterList list =
+        new TimelineFilterList(Operator.OR,
+            new TimelinePrefixFilter(TimelineCompareOp.EQUAL, "cfg_"));
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null,
+        confFilterList, null, null),
+        new TimelineDataToRetrieve(list, null, null, null));
+    assertEquals(1, entities.size());
+    int cfgCnt = 0;
+    for (TimelineEntity entity : entities) {
+      cfgCnt += entity.getConfigs().size();
+      for (String confKey : entity.getConfigs().keySet()) {
+        assertTrue("Config key returned should start with cfg_",
+            confKey.startsWith("cfg_"));
+      }
+    }
+    assertEquals(2, cfgCnt);
+    TimelineFilterList list1 = new TimelineFilterList();
+    list1.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "cfg_param1", "value1"));
+    list1.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "cfg_param2", "value2"));
+    TimelineFilterList list2 = new TimelineFilterList();
+    list2.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "cfg_param1", "value3"));
+    list2.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "config_param2", "value2"));
+    TimelineFilterList confFilterList1 =
+        new TimelineFilterList(Operator.OR, list1, list2);
+    TimelineFilterList confsToRetrieve =
+        new TimelineFilterList(Operator.OR,
+            new TimelinePrefixFilter(TimelineCompareOp.EQUAL, "config_"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null,
+        confFilterList1, null, null),
+        new TimelineDataToRetrieve(confsToRetrieve, null, null, null));
+    assertEquals(2, entities.size());
+    cfgCnt = 0;
+    for (TimelineEntity entity : entities) {
+      cfgCnt += entity.getConfigs().size();
+      for (String confKey : entity.getConfigs().keySet()) {
+        assertTrue("Config key returned should start with config_",
+            confKey.startsWith("config_"));
+      }
+    }
+    assertEquals(2, cfgCnt);
+  }
+
+  @Test
+  public void testReadEntitiesMetricPrefix() throws Exception {
+    TimelineFilterList list =
+        new TimelineFilterList(Operator.OR,
+            new TimelinePrefixFilter(TimelineCompareOp.EQUAL, "MAP1_"));
+    TimelineEntity e1 = reader.getEntity(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", "hello"),
+        new TimelineDataToRetrieve(null, list, null, null));
+    assertNotNull(e1);
+    assertEquals(1, e1.getMetrics().size());
+    Set<TimelineEntity> es1 = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(),
+        new TimelineDataToRetrieve(null, list, null, null));
+    int metricCnt = 0;
+    for (TimelineEntity entity : es1) {
+      metricCnt += entity.getMetrics().size();
+      for (TimelineMetric metric : entity.getMetrics()) {
+        assertTrue("Metric Id returned should start with MAP1_",
+            metric.getId().startsWith("MAP1_"));
+      }
+    }
+    assertEquals(2, metricCnt);
+  }
+
+  @Test
+  public void testReadEntitiesMetricFilters() throws Exception {
+    TimelineFilterList list1 = new TimelineFilterList();
+    list1.addFilter(new TimelineCompareFilter(
+        TimelineCompareOp.GREATER_OR_EQUAL, "MAP1_SLOT_MILLIS", 50000000900L));
+    TimelineFilterList list2 = new TimelineFilterList();
+    list2.addFilter(new TimelineCompareFilter(
+        TimelineCompareOp.LESS_THAN, "MAP_SLOT_MILLIS", 80000000000L));
+    list2.addFilter(new TimelineCompareFilter(
+        TimelineCompareOp.EQUAL, "MAP1_BYTES", 50));
+    TimelineFilterList metricFilterList =
+        new TimelineFilterList(Operator.OR, list1, list2);
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        metricFilterList, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.METRICS),
+        null));
+    assertEquals(2, entities.size());
+    int metricCnt = 0;
+    for (TimelineEntity entity : entities) {
+      metricCnt += entity.getMetrics().size();
+    }
+    assertEquals(3, metricCnt);
+
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        metricFilterList, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.ALL), null));
+    assertEquals(2, entities.size());
+    metricCnt = 0;
+    for (TimelineEntity entity : entities) {
+      metricCnt += entity.getMetrics().size();
+    }
+    assertEquals(3, metricCnt);
+
+    TimelineFilterList metricFilterList1 = new TimelineFilterList(
+        new TimelineCompareFilter(
+        TimelineCompareOp.LESS_OR_EQUAL, "MAP_SLOT_MILLIS", 80000000000L),
+        new TimelineCompareFilter(
+        TimelineCompareOp.NOT_EQUAL, "MAP1_BYTES", 30));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        metricFilterList1, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.METRICS),
+        null));
+    assertEquals(1, entities.size());
+    metricCnt = 0;
+    for (TimelineEntity entity : entities) {
+      metricCnt += entity.getMetrics().size();
+    }
+    assertEquals(2, metricCnt);
+
+    TimelineFilterList metricFilterList2 = new TimelineFilterList(
+        new TimelineCompareFilter(
+        TimelineCompareOp.LESS_THAN, "MAP_SLOT_MILLIS", 40000000000L),
+        new TimelineCompareFilter(
+        TimelineCompareOp.NOT_EQUAL, "MAP1_BYTES", 30));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        metricFilterList2, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.METRICS),
+        null));
+    assertEquals(0, entities.size());
+
+    TimelineFilterList metricFilterList3 = new TimelineFilterList(
+        new TimelineCompareFilter(
+        TimelineCompareOp.EQUAL, "dummy_metric", 5));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        metricFilterList3, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.METRICS),
+        null));
+    assertEquals(0, entities.size());
+
+    TimelineFilterList metricFilterList4 = new TimelineFilterList(
+        new TimelineCompareFilter(
+        TimelineCompareOp.NOT_EQUAL, "dummy_metric", 5));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        metricFilterList4, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.METRICS),
+        null));
+    assertEquals(0, entities.size());
+
+    TimelineFilterList metricFilterList5 = new TimelineFilterList(
+        new TimelineCompareFilter(
+        TimelineCompareOp.NOT_EQUAL, "dummy_metric", 5, false));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        metricFilterList5, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.METRICS),
+        null));
+    assertEquals(3, entities.size());
+  }
+
+  @Test
+  public void testReadEntitiesMetricFilterPrefix() throws Exception {
+    TimelineFilterList metricFilterList = new TimelineFilterList();
+    metricFilterList.addFilter(new TimelineCompareFilter(
+        TimelineCompareOp.GREATER_OR_EQUAL, "MAP1_SLOT_MILLIS", 0L));
+    TimelineFilterList list =
+        new TimelineFilterList(Operator.OR,
+            new TimelinePrefixFilter(TimelineCompareOp.EQUAL, "MAP1_"));
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        metricFilterList, null),
+        new TimelineDataToRetrieve(null, list, null, null));
+    assertEquals(1, entities.size());
+    int metricCnt = 0;
+    for (TimelineEntity entity : entities) {
+      metricCnt += entity.getMetrics().size();
+      for (TimelineMetric metric : entity.getMetrics()) {
+        assertTrue("Metric Id returned should start with MAP1_",
+            metric.getId().startsWith("MAP1_"));
+      }
+    }
+    assertEquals(1, metricCnt);
+
+    TimelineFilterList list1 = new TimelineFilterList();
+    list1.addFilter(new TimelineCompareFilter(
+        TimelineCompareOp.GREATER_OR_EQUAL, "MAP1_SLOT_MILLIS", 50000000900L));
+    TimelineFilterList list2 = new TimelineFilterList();
+    list2.addFilter(new TimelineCompareFilter(
+        TimelineCompareOp.LESS_THAN, "MAP_SLOT_MILLIS", 80000000000L));
+    list2.addFilter(new TimelineCompareFilter(
+        TimelineCompareOp.EQUAL, "MAP1_BYTES", 50));
+    TimelineFilterList metricFilterList1 =
+        new TimelineFilterList(Operator.OR, list1, list2);
+    TimelineFilterList metricsToRetrieve = new TimelineFilterList(Operator.OR,
+        new TimelinePrefixFilter(TimelineCompareOp.EQUAL, "MAP1_"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, null, null,
+        metricFilterList1, null),
+        new TimelineDataToRetrieve(
+        null, metricsToRetrieve, EnumSet.of(Field.METRICS), null));
+    assertEquals(2, entities.size());
+    metricCnt = 0;
+    for (TimelineEntity entity : entities) {
+      metricCnt += entity.getMetrics().size();
+      for (TimelineMetric metric : entity.getMetrics()) {
+        assertEquals(TimelineMetric.Type.SINGLE_VALUE, metric.getType());
+        assertEquals(1, metric.getValues().size());
+        assertTrue("Metric Id returned should start with MAP1_",
+            metric.getId().startsWith("MAP1_"));
+      }
+    }
+    assertEquals(2, metricCnt);
+
+    entities = reader.getEntities(new TimelineReaderContext("cluster1", "user1",
+        "some_flow_name", 1002345678919L, "application_1231111111_1111",
+        "world", null), new TimelineEntityFilters(null, null, null, null, null,
+        null, null, metricFilterList1, null), new TimelineDataToRetrieve(null,
+        metricsToRetrieve, EnumSet.of(Field.METRICS), Integer.MAX_VALUE));
+    assertEquals(2, entities.size());
+    metricCnt = 0;
+    int metricValCnt = 0;
+    for (TimelineEntity entity : entities) {
+      metricCnt += entity.getMetrics().size();
+      for (TimelineMetric metric : entity.getMetrics()) {
+        metricValCnt += metric.getValues().size();
+        assertTrue("Metric Id returned should start with MAP1_",
+            metric.getId().startsWith("MAP1_"));
+      }
+    }
+    assertEquals(2, metricCnt);
+    assertEquals(7, metricValCnt);
+  }
+
+  @Test
+  public void testReadEntitiesInfoFilters() throws Exception {
+    TimelineFilterList list1 = new TimelineFilterList();
+    list1.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "infoMapKey3", 71.4));
+    list1.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "infoMapKey1", "infoMapValue2"));
+    TimelineFilterList list2 = new TimelineFilterList();
+    list2.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "infoMapKey1", "infoMapValue1"));
+    list2.addFilter(new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "infoMapKey2", 10));
+    TimelineFilterList infoFilterList =
+        new TimelineFilterList(Operator.OR, list1, list2);
+    Set<TimelineEntity> entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, infoFilterList,
+        null, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.INFO), null));
+    assertEquals(2, entities.size());
+    int infoCnt = 0;
+    for (TimelineEntity entity : entities) {
+      infoCnt += entity.getInfo().size();
+    }
+    assertEquals(5, infoCnt);
+
+    TimelineFilterList infoFilterList1 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "infoMapKey1", "infoMapValue1"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, infoFilterList1,
+        null, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.INFO), null));
+    assertEquals(1, entities.size());
+    infoCnt = 0;
+    for (TimelineEntity entity : entities) {
+      infoCnt += entity.getInfo().size();
+    }
+    assertEquals(3, infoCnt);
+
+    TimelineFilterList infoFilterList2 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "infoMapKey1", "infoMapValue2"),
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "infoMapKey3", 71.4));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, infoFilterList2,
+        null, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.INFO), null));
+    assertEquals(0, entities.size());
+
+    TimelineFilterList infoFilterList3 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.EQUAL, "dummy_info", "some_value"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, infoFilterList3,
+        null, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.INFO), null));
+    assertEquals(0, entities.size());
+
+    TimelineFilterList infoFilterList4 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "dummy_info", "some_value"));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, infoFilterList4,
+        null, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.INFO), null));
+    assertEquals(0, entities.size());
+
+    TimelineFilterList infoFilterList5 = new TimelineFilterList(
+        new TimelineKeyValueFilter(
+        TimelineCompareOp.NOT_EQUAL, "dummy_info", "some_value", false));
+    entities = reader.getEntities(
+        new TimelineReaderContext("cluster1", "user1", "some_flow_name",
+        1002345678919L, "application_1231111111_1111", "world", null),
+        new TimelineEntityFilters(null, null, null, null, null, infoFilterList5,
+        null, null, null),
+        new TimelineDataToRetrieve(null, null, EnumSet.of(Field.INFO), null));
+    assertEquals(3, entities.size());
+  }
+
+  @AfterClass
+  public static void tearDownAfterClass() throws Exception {
+    util.shutdownMiniCluster();
+  }
+}


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