Example usage for java.util NavigableMap lastEntry

Introduction

In this page you can find the example usage for java.util NavigableMap lastEntry.

Prototype

Map.Entry<K, V> lastEntry();

Source Link

Document

Returns a key-value mapping associated with the greatest key in this map, or null if the map is empty.

Usage

From source file:org.apache.metron.indexing.dao.UpdateIntegrationTest.java

@Test
public void test() throws Exception {
    List<Map<String, Object>> inputData = new ArrayList<>();
    for (int i = 0; i < 10; ++i) {
        final String name = "message" + i;
        inputData.add(new HashMap<String, Object>() {
            {/*from w  w w  . j  av a  2 s.co  m*/
                put("source.type", SENSOR_NAME);
                put("name", name);
                put("timestamp", System.currentTimeMillis());
                put(Constants.GUID, name);
            }
        });
    }
    addTestData(getIndexName(), SENSOR_NAME, inputData);
    List<Map<String, Object>> docs = null;
    for (int t = 0; t < MAX_RETRIES; ++t, Thread.sleep(SLEEP_MS)) {
        docs = getIndexedTestData(getIndexName(), SENSOR_NAME);
        if (docs.size() >= 10) {
            break;
        }
    }
    Assert.assertEquals(10, docs.size());
    //modify the first message and add a new field
    {
        Map<String, Object> message0 = new HashMap<String, Object>(inputData.get(0)) {
            {
                put("new-field", "metron");
            }
        };
        String guid = "" + message0.get(Constants.GUID);
        getDao().replace(new ReplaceRequest() {
            {
                setReplacement(message0);
                setGuid(guid);
                setSensorType(SENSOR_NAME);
                setIndex(getIndexName());
            }
        }, Optional.empty());

        Assert.assertEquals(1, getMockHTable().size());
        findUpdatedDoc(message0, guid, SENSOR_NAME);
        {
            //ensure hbase is up to date
            Get g = new Get(HBaseDao.Key.toBytes(new HBaseDao.Key(guid, SENSOR_NAME)));
            Result r = getMockHTable().get(g);
            NavigableMap<byte[], byte[]> columns = r.getFamilyMap(CF.getBytes());
            Assert.assertEquals(1, columns.size());
            Assert.assertEquals(message0, JSONUtils.INSTANCE.load(new String(columns.lastEntry().getValue()),
                    JSONUtils.MAP_SUPPLIER));
        }
        {
            //ensure ES is up-to-date
            long cnt = 0;
            for (int t = 0; t < MAX_RETRIES && cnt == 0; ++t, Thread.sleep(SLEEP_MS)) {
                docs = getIndexedTestData(getIndexName(), SENSOR_NAME);
                cnt = docs.stream().filter(d -> message0.get("new-field").equals(d.get("new-field"))).count();
            }
            Assert.assertNotEquals("Data store is not updated!", cnt, 0);
        }
    }
    //modify the same message and modify the new field
    {
        Map<String, Object> message0 = new HashMap<String, Object>(inputData.get(0)) {
            {
                put("new-field", "metron2");
            }
        };
        String guid = "" + message0.get(Constants.GUID);
        getDao().replace(new ReplaceRequest() {
            {
                setReplacement(message0);
                setGuid(guid);
                setSensorType(SENSOR_NAME);
                setIndex(getIndexName());
            }
        }, Optional.empty());
        Assert.assertEquals(1, getMockHTable().size());
        Document doc = getDao().getLatest(guid, SENSOR_NAME);
        Assert.assertEquals(message0, doc.getDocument());
        findUpdatedDoc(message0, guid, SENSOR_NAME);
        {
            //ensure hbase is up to date
            Get g = new Get(HBaseDao.Key.toBytes(new HBaseDao.Key(guid, SENSOR_NAME)));
            Result r = getMockHTable().get(g);
            NavigableMap<byte[], byte[]> columns = r.getFamilyMap(CF.getBytes());
            Assert.assertEquals(2, columns.size());
            Assert.assertEquals(message0, JSONUtils.INSTANCE.load(new String(columns.lastEntry().getValue()),
                    JSONUtils.MAP_SUPPLIER));
            Assert.assertNotEquals(message0, JSONUtils.INSTANCE
                    .load(new String(columns.firstEntry().getValue()), JSONUtils.MAP_SUPPLIER));
        }
        {
            //ensure ES is up-to-date
            long cnt = 0;
            for (int t = 0; t < MAX_RETRIES && cnt == 0; ++t, Thread.sleep(SLEEP_MS)) {
                docs = getIndexedTestData(getIndexName(), SENSOR_NAME);
                cnt = docs.stream().filter(d -> message0.get("new-field").equals(d.get("new-field"))).count();
            }

            Assert.assertNotEquals("Data store is not updated!", cnt, 0);
        }
    }
}

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From source file:org.noroomattheinn.visibletesla.TripController.java

private void updateStartEndProps(String statType, long startTime, long endTime, GenericProperty prop,
        double conversionFactor) {
    NavigableMap<Long, Row> rows = vtData.getRangeOfLoadedRows(startTime, endTime);

    double startValue = rows.firstEntry().getValue().get(VTData.schema, statType);
    double endValue = rows.lastEntry().getValue().get(VTData.schema, statType);
    prop.setValue(String.format("%.1f", startValue * conversionFactor));
    prop.setUnits(String.format("%.1f", endValue * conversionFactor));
}

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