/**
* Copyright © 2016-2018 The Thingsboard Authors
*
* Licensed 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.thingsboard.server.dao.timeseries;
import com.datastax.driver.core.BoundStatement;
import com.datastax.driver.core.PreparedStatement;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.ResultSetFuture;
import com.datastax.driver.core.Row;
import com.datastax.driver.core.querybuilder.QueryBuilder;
import com.datastax.driver.core.querybuilder.Select;
import com.google.common.base.Function;
import com.google.common.util.concurrent.AsyncFunction;
import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;
import org.thingsboard.server.common.data.id.EntityId;
import org.thingsboard.server.common.data.kv.Aggregation;
import org.thingsboard.server.common.data.kv.BaseTsKvQuery;
import org.thingsboard.server.common.data.kv.BasicTsKvEntry;
import org.thingsboard.server.common.data.kv.BooleanDataEntry;
import org.thingsboard.server.common.data.kv.DataType;
import org.thingsboard.server.common.data.kv.DoubleDataEntry;
import org.thingsboard.server.common.data.kv.KvEntry;
import org.thingsboard.server.common.data.kv.LongDataEntry;
import org.thingsboard.server.common.data.kv.StringDataEntry;
import org.thingsboard.server.common.data.kv.TsKvEntry;
import org.thingsboard.server.common.data.kv.TsKvQuery;
import org.thingsboard.server.dao.model.ModelConstants;
import org.thingsboard.server.dao.nosql.CassandraAbstractAsyncDao;
import org.thingsboard.server.dao.util.NoSqlDao;
import javax.annotation.Nullable;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneOffset;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import static com.datastax.driver.core.querybuilder.QueryBuilder.eq;
/**
* @author Andrew Shvayka
*/
@Component
@Slf4j
@NoSqlDao
public class CassandraBaseTimeseriesDao extends CassandraAbstractAsyncDao implements TimeseriesDao {
private static final int MIN_AGGREGATION_STEP_MS = 1000;
public static final String INSERT_INTO = "INSERT INTO ";
public static final String GENERATED_QUERY_FOR_ENTITY_TYPE_AND_ENTITY_ID = "Generated query [{}] for entityType {} and entityId {}";
public static final String SELECT_PREFIX = "SELECT ";
public static final String EQUALS_PARAM = " = ? ";
@Autowired
private Environment environment;
@Value("${cassandra.query.ts_key_value_partitioning}")
private String partitioning;
@Value("${cassandra.query.ts_key_value_ttl}")
private long systemTtl;
private TsPartitionDate tsFormat;
private PreparedStatement partitionInsertStmt;
private PreparedStatement partitionInsertTtlStmt;
private PreparedStatement latestInsertStmt;
private PreparedStatement[] saveStmts;
private PreparedStatement[] saveTtlStmts;
private PreparedStatement[] fetchStmts;
private PreparedStatement findLatestStmt;
private PreparedStatement findAllLatestStmt;
private boolean isInstall() {
return environment.acceptsProfiles("install");
}
@PostConstruct
public void init() {
super.startExecutor();
if (!isInstall()) {
getFetchStmt(Aggregation.NONE);
Optional<TsPartitionDate> partition = TsPartitionDate.parse(partitioning);
if (partition.isPresent()) {
tsFormat = partition.get();
} else {
log.warn("Incorrect configuration of partitioning {}", partitioning);
throw new RuntimeException("Failed to parse partitioning property: " + partitioning + "!");
}
}
}
@PreDestroy
public void stop() {
super.stopExecutor();
}
@Override
public ListenableFuture<List<TsKvEntry>> findAllAsync(EntityId entityId, List<TsKvQuery> queries) {
List<ListenableFuture<List<TsKvEntry>>> futures = queries.stream().map(query -> findAllAsync(entityId, query)).collect(Collectors.toList());
return Futures.transform(Futures.allAsList(futures), new Function<List<List<TsKvEntry>>, List<TsKvEntry>>() {
@Nullable
@Override
public List<TsKvEntry> apply(@Nullable List<List<TsKvEntry>> results) {
if (results == null || results.isEmpty()) {
return null;
}
return results.stream()
.flatMap(List::stream)
.collect(Collectors.toList());
}
}, readResultsProcessingExecutor);
}
private ListenableFuture<List<TsKvEntry>> findAllAsync(EntityId entityId, TsKvQuery query) {
if (query.getAggregation() == Aggregation.NONE) {
return findAllAsyncWithLimit(entityId, query);
} else {
long step = Math.max(query.getInterval(), MIN_AGGREGATION_STEP_MS);
long stepTs = query.getStartTs();
List<ListenableFuture<Optional<TsKvEntry>>> futures = new ArrayList<>();
while (stepTs < query.getEndTs()) {
long startTs = stepTs;
long endTs = stepTs + step;
TsKvQuery subQuery = new BaseTsKvQuery(query.getKey(), startTs, endTs, step, 1, query.getAggregation());
futures.add(findAndAggregateAsync(entityId, subQuery, toPartitionTs(startTs), toPartitionTs(endTs)));
stepTs = endTs;
}
ListenableFuture<List<Optional<TsKvEntry>>> future = Futures.allAsList(futures);
return Futures.transform(future, new Function<List<Optional<TsKvEntry>>, List<TsKvEntry>>() {
@Nullable
@Override
public List<TsKvEntry> apply(@Nullable List<Optional<TsKvEntry>> input) {
return input == null ? Collections.emptyList() : input.stream().filter(v -> v.isPresent()).map(v -> v.get()).collect(Collectors.toList());
}
}, readResultsProcessingExecutor);
}
}
private ListenableFuture<List<TsKvEntry>> findAllAsyncWithLimit(EntityId entityId, TsKvQuery query) {
long minPartition = toPartitionTs(query.getStartTs());
long maxPartition = toPartitionTs(query.getEndTs());
ResultSetFuture partitionsFuture = fetchPartitions(entityId, query.getKey(), minPartition, maxPartition);
final SimpleListenableFuture<List<TsKvEntry>> resultFuture = new SimpleListenableFuture<>();
final ListenableFuture<List<Long>> partitionsListFuture = Futures.transform(partitionsFuture, getPartitionsArrayFunction(), readResultsProcessingExecutor);
Futures.addCallback(partitionsListFuture, new FutureCallback<List<Long>>() {
@Override
public void onSuccess(@Nullable List<Long> partitions) {
TsKvQueryCursor cursor = new TsKvQueryCursor(entityId.getEntityType().name(), entityId.getId(), query, partitions);
findAllAsyncSequentiallyWithLimit(cursor, resultFuture);
}
@Override
public void onFailure(Throwable t) {
log.error("[{}][{}] Failed to fetch partitions for interval {}-{}", entityId.getEntityType().name(), entityId.getId(), minPartition, maxPartition, t);
}
}, readResultsProcessingExecutor);
return resultFuture;
}
private long toPartitionTs(long ts) {
LocalDateTime time = LocalDateTime.ofInstant(Instant.ofEpochMilli(ts), ZoneOffset.UTC);
return tsFormat.truncatedTo(time).toInstant(ZoneOffset.UTC).toEpochMilli();
}
private void findAllAsyncSequentiallyWithLimit(final TsKvQueryCursor cursor, final SimpleListenableFuture<List<TsKvEntry>> resultFuture) {
if (cursor.isFull() || !cursor.hasNextPartition()) {
resultFuture.set(cursor.getData());
} else {
PreparedStatement proto = getFetchStmt(Aggregation.NONE);
BoundStatement stmt = proto.bind();
stmt.setString(0, cursor.getEntityType());
stmt.setUUID(1, cursor.getEntityId());
stmt.setString(2, cursor.getKey());
stmt.setLong(3, cursor.getNextPartition());
stmt.setLong(4, cursor.getStartTs());
stmt.setLong(5, cursor.getEndTs());
stmt.setInt(6, cursor.getCurrentLimit());
Futures.addCallback(executeAsyncRead(stmt), new FutureCallback<ResultSet>() {
@Override
public void onSuccess(@Nullable ResultSet result) {
cursor.addData(convertResultToTsKvEntryList(result == null ? Collections.emptyList() : result.all()));
findAllAsyncSequentiallyWithLimit(cursor, resultFuture);
}
@Override
public void onFailure(Throwable t) {
log.error("[{}][{}] Failed to fetch data for query {}-{}", stmt, t);
}
}, readResultsProcessingExecutor);
}
}
private ListenableFuture<Optional<TsKvEntry>> findAndAggregateAsync(EntityId entityId, TsKvQuery query, long minPartition, long maxPartition) {
final Aggregation aggregation = query.getAggregation();
final String key = query.getKey();
final long startTs = query.getStartTs();
final long endTs = query.getEndTs();
final long ts = startTs + (endTs - startTs) / 2;
ResultSetFuture partitionsFuture = fetchPartitions(entityId, key, minPartition, maxPartition);
ListenableFuture<List<Long>> partitionsListFuture = Futures.transform(partitionsFuture, getPartitionsArrayFunction(), readResultsProcessingExecutor);
ListenableFuture<List<ResultSet>> aggregationChunks = Futures.transformAsync(partitionsListFuture,
getFetchChunksAsyncFunction(entityId, key, aggregation, startTs, endTs), readResultsProcessingExecutor);
return Futures.transform(aggregationChunks, new AggregatePartitionsFunction(aggregation, key, ts), readResultsProcessingExecutor);
}
private Function<ResultSet, List<Long>> getPartitionsArrayFunction() {
return rows -> rows.all().stream()
.map(row -> row.getLong(ModelConstants.PARTITION_COLUMN)).collect(Collectors.toList());
}
private AsyncFunction<List<Long>, List<ResultSet>> getFetchChunksAsyncFunction(EntityId entityId, String key, Aggregation aggregation, long startTs, long endTs) {
return partitions -> {
try {
PreparedStatement proto = getFetchStmt(aggregation);
List<ResultSetFuture> futures = new ArrayList<>(partitions.size());
for (Long partition : partitions) {
log.trace("Fetching data for partition [{}] for entityType {} and entityId {}", partition, entityId.getEntityType(), entityId.getId());
BoundStatement stmt = proto.bind();
stmt.setString(0, entityId.getEntityType().name());
stmt.setUUID(1, entityId.getId());
stmt.setString(2, key);
stmt.setLong(3, partition);
stmt.setLong(4, startTs);
stmt.setLong(5, endTs);
log.debug(GENERATED_QUERY_FOR_ENTITY_TYPE_AND_ENTITY_ID, stmt, entityId.getEntityType(), entityId.getId());
futures.add(executeAsyncRead(stmt));
}
return Futures.allAsList(futures);
} catch (Throwable e) {
log.error("Failed to fetch data", e);
throw e;
}
};
}
@Override
public ListenableFuture<TsKvEntry> findLatest(EntityId entityId, String key) {
BoundStatement stmt = getFindLatestStmt().bind();
stmt.setString(0, entityId.getEntityType().name());
stmt.setUUID(1, entityId.getId());
stmt.setString(2, key);
log.debug(GENERATED_QUERY_FOR_ENTITY_TYPE_AND_ENTITY_ID, stmt, entityId.getEntityType(), entityId.getId());
return getFuture(executeAsyncRead(stmt), rs -> convertResultToTsKvEntry(key, rs.one()));
}
@Override
public ListenableFuture<List<TsKvEntry>> findAllLatest(EntityId entityId) {
BoundStatement stmt = getFindAllLatestStmt().bind();
stmt.setString(0, entityId.getEntityType().name());
stmt.setUUID(1, entityId.getId());
log.debug(GENERATED_QUERY_FOR_ENTITY_TYPE_AND_ENTITY_ID, stmt, entityId.getEntityType(), entityId.getId());
return getFuture(executeAsyncRead(stmt), rs -> convertResultToTsKvEntryList(rs.all()));
}
@Override
public ListenableFuture<Void> save(EntityId entityId, TsKvEntry tsKvEntry, long ttl) {
ttl = computeTtl(ttl);
long partition = toPartitionTs(tsKvEntry.getTs());
DataType type = tsKvEntry.getDataType();
BoundStatement stmt = (ttl == 0 ? getSaveStmt(type) : getSaveTtlStmt(type)).bind();
stmt.setString(0, entityId.getEntityType().name())
.setUUID(1, entityId.getId())
.setString(2, tsKvEntry.getKey())
.setLong(3, partition)
.setLong(4, tsKvEntry.getTs());
addValue(tsKvEntry, stmt, 5);
if (ttl > 0) {
stmt.setInt(6, (int) ttl);
}
return getFuture(executeAsyncWrite(stmt), rs -> null);
}
@Override
public ListenableFuture<Void> savePartition(EntityId entityId, long tsKvEntryTs, String key, long ttl) {
ttl = computeTtl(ttl);
long partition = toPartitionTs(tsKvEntryTs);
log.debug("Saving partition {} for the entity [{}-{}] and key {}", partition, entityId.getEntityType(), entityId.getId(), key);
BoundStatement stmt = (ttl == 0 ? getPartitionInsertStmt() : getPartitionInsertTtlStmt()).bind();
stmt = stmt.setString(0, entityId.getEntityType().name())
.setUUID(1, entityId.getId())
.setLong(2, partition)
.setString(3, key);
if (ttl > 0) {
stmt.setInt(4, (int) ttl);
}
return getFuture(executeAsyncWrite(stmt), rs -> null);
}
private long computeTtl(long ttl) {
if (systemTtl > 0) {
if (ttl == 0) {
ttl = systemTtl;
} else {
ttl = Math.min(systemTtl, ttl);
}
}
return ttl;
}
@Override
public ListenableFuture<Void> saveLatest(EntityId entityId, TsKvEntry tsKvEntry) {
BoundStatement stmt = getLatestStmt().bind()
.setString(0, entityId.getEntityType().name())
.setUUID(1, entityId.getId())
.setString(2, tsKvEntry.getKey())
.setLong(3, tsKvEntry.getTs())
.set(4, tsKvEntry.getBooleanValue().orElse(null), Boolean.class)
.set(5, tsKvEntry.getStrValue().orElse(null), String.class)
.set(6, tsKvEntry.getLongValue().orElse(null), Long.class)
.set(7, tsKvEntry.getDoubleValue().orElse(null), Double.class);
return getFuture(executeAsyncWrite(stmt), rs -> null);
}
private List<TsKvEntry> convertResultToTsKvEntryList(List<Row> rows) {
List<TsKvEntry> entries = new ArrayList<>(rows.size());
if (!rows.isEmpty()) {
rows.forEach(row -> entries.add(convertResultToTsKvEntry(row)));
}
return entries;
}
private TsKvEntry convertResultToTsKvEntry(String key, Row row) {
if (row != null) {
long ts = row.getLong(ModelConstants.TS_COLUMN);
return new BasicTsKvEntry(ts, toKvEntry(row, key));
} else {
return new BasicTsKvEntry(System.currentTimeMillis(), new StringDataEntry(key, null));
}
}
private TsKvEntry convertResultToTsKvEntry(Row row) {
String key = row.getString(ModelConstants.KEY_COLUMN);
long ts = row.getLong(ModelConstants.TS_COLUMN);
return new BasicTsKvEntry(ts, toKvEntry(row, key));
}
public static KvEntry toKvEntry(Row row, String key) {
KvEntry kvEntry = null;
String strV = row.get(ModelConstants.STRING_VALUE_COLUMN, String.class);
if (strV != null) {
kvEntry = new StringDataEntry(key, strV);
} else {
Long longV = row.get(ModelConstants.LONG_VALUE_COLUMN, Long.class);
if (longV != null) {
kvEntry = new LongDataEntry(key, longV);
} else {
Double doubleV = row.get(ModelConstants.DOUBLE_VALUE_COLUMN, Double.class);
if (doubleV != null) {
kvEntry = new DoubleDataEntry(key, doubleV);
} else {
Boolean boolV = row.get(ModelConstants.BOOLEAN_VALUE_COLUMN, Boolean.class);
if (boolV != null) {
kvEntry = new BooleanDataEntry(key, boolV);
} else {
log.warn("All values in key-value row are nullable ");
}
}
}
}
return kvEntry;
}
/**
* Select existing partitions from the table
* <code>{@link ModelConstants#TS_KV_PARTITIONS_CF}</code> for the given entity
*/
private ResultSetFuture fetchPartitions(EntityId entityId, String key, long minPartition, long maxPartition) {
Select.Where select = QueryBuilder.select(ModelConstants.PARTITION_COLUMN).from(ModelConstants.TS_KV_PARTITIONS_CF).where(eq(ModelConstants.ENTITY_TYPE_COLUMN, entityId.getEntityType().name()))
.and(eq(ModelConstants.ENTITY_ID_COLUMN, entityId.getId())).and(eq(ModelConstants.KEY_COLUMN, key));
select.and(QueryBuilder.gte(ModelConstants.PARTITION_COLUMN, minPartition));
select.and(QueryBuilder.lte(ModelConstants.PARTITION_COLUMN, maxPartition));
return executeAsyncRead(select);
}
private PreparedStatement getSaveStmt(DataType dataType) {
if (saveStmts == null) {
saveStmts = new PreparedStatement[DataType.values().length];
for (DataType type : DataType.values()) {
saveStmts[type.ordinal()] = prepare(INSERT_INTO + ModelConstants.TS_KV_CF +
"(" + ModelConstants.ENTITY_TYPE_COLUMN +
"," + ModelConstants.ENTITY_ID_COLUMN +
"," + ModelConstants.KEY_COLUMN +
"," + ModelConstants.PARTITION_COLUMN +
"," + ModelConstants.TS_COLUMN +
"," + getColumnName(type) + ")" +
" VALUES(?, ?, ?, ?, ?, ?)");
}
}
return saveStmts[dataType.ordinal()];
}
private PreparedStatement getSaveTtlStmt(DataType dataType) {
if (saveTtlStmts == null) {
saveTtlStmts = new PreparedStatement[DataType.values().length];
for (DataType type : DataType.values()) {
saveTtlStmts[type.ordinal()] = prepare(INSERT_INTO + ModelConstants.TS_KV_CF +
"(" + ModelConstants.ENTITY_TYPE_COLUMN +
"," + ModelConstants.ENTITY_ID_COLUMN +
"," + ModelConstants.KEY_COLUMN +
"," + ModelConstants.PARTITION_COLUMN +
"," + ModelConstants.TS_COLUMN +
"," + getColumnName(type) + ")" +
" VALUES(?, ?, ?, ?, ?, ?) USING TTL ?");
}
}
return saveTtlStmts[dataType.ordinal()];
}
private PreparedStatement getFetchStmt(Aggregation aggType) {
if (fetchStmts == null) {
fetchStmts = new PreparedStatement[Aggregation.values().length];
for (Aggregation type : Aggregation.values()) {
if (type == Aggregation.SUM && fetchStmts[Aggregation.AVG.ordinal()] != null) {
fetchStmts[type.ordinal()] = fetchStmts[Aggregation.AVG.ordinal()];
} else if (type == Aggregation.AVG && fetchStmts[Aggregation.SUM.ordinal()] != null) {
fetchStmts[type.ordinal()] = fetchStmts[Aggregation.SUM.ordinal()];
} else {
fetchStmts[type.ordinal()] = prepare(SELECT_PREFIX +
String.join(", ", ModelConstants.getFetchColumnNames(type)) + " FROM " + ModelConstants.TS_KV_CF
+ " WHERE " + ModelConstants.ENTITY_TYPE_COLUMN + EQUALS_PARAM
+ "AND " + ModelConstants.ENTITY_ID_COLUMN + EQUALS_PARAM
+ "AND " + ModelConstants.KEY_COLUMN + EQUALS_PARAM
+ "AND " + ModelConstants.PARTITION_COLUMN + EQUALS_PARAM
+ "AND " + ModelConstants.TS_COLUMN + " > ? "
+ "AND " + ModelConstants.TS_COLUMN + " <= ?"
+ (type == Aggregation.NONE ? " ORDER BY " + ModelConstants.TS_COLUMN + " DESC LIMIT ?" : ""));
}
}
}
return fetchStmts[aggType.ordinal()];
}
private PreparedStatement getLatestStmt() {
if (latestInsertStmt == null) {
latestInsertStmt = prepare(INSERT_INTO + ModelConstants.TS_KV_LATEST_CF +
"(" + ModelConstants.ENTITY_TYPE_COLUMN +
"," + ModelConstants.ENTITY_ID_COLUMN +
"," + ModelConstants.KEY_COLUMN +
"," + ModelConstants.TS_COLUMN +
"," + ModelConstants.BOOLEAN_VALUE_COLUMN +
"," + ModelConstants.STRING_VALUE_COLUMN +
"," + ModelConstants.LONG_VALUE_COLUMN +
"," + ModelConstants.DOUBLE_VALUE_COLUMN + ")" +
" VALUES(?, ?, ?, ?, ?, ?, ?, ?)");
}
return latestInsertStmt;
}
private PreparedStatement getPartitionInsertStmt() {
if (partitionInsertStmt == null) {
partitionInsertStmt = prepare(INSERT_INTO + ModelConstants.TS_KV_PARTITIONS_CF +
"(" + ModelConstants.ENTITY_TYPE_COLUMN +
"," + ModelConstants.ENTITY_ID_COLUMN +
"," + ModelConstants.PARTITION_COLUMN +
"," + ModelConstants.KEY_COLUMN + ")" +
" VALUES(?, ?, ?, ?)");
}
return partitionInsertStmt;
}
private PreparedStatement getPartitionInsertTtlStmt() {
if (partitionInsertTtlStmt == null) {
partitionInsertTtlStmt = prepare(INSERT_INTO + ModelConstants.TS_KV_PARTITIONS_CF +
"(" + ModelConstants.ENTITY_TYPE_COLUMN +
"," + ModelConstants.ENTITY_ID_COLUMN +
"," + ModelConstants.PARTITION_COLUMN +
"," + ModelConstants.KEY_COLUMN + ")" +
" VALUES(?, ?, ?, ?) USING TTL ?");
}
return partitionInsertTtlStmt;
}
private PreparedStatement getFindLatestStmt() {
if (findLatestStmt == null) {
findLatestStmt = prepare(SELECT_PREFIX +
ModelConstants.KEY_COLUMN + "," +
ModelConstants.TS_COLUMN + "," +
ModelConstants.STRING_VALUE_COLUMN + "," +
ModelConstants.BOOLEAN_VALUE_COLUMN + "," +
ModelConstants.LONG_VALUE_COLUMN + "," +
ModelConstants.DOUBLE_VALUE_COLUMN + " " +
"FROM " + ModelConstants.TS_KV_LATEST_CF + " " +
"WHERE " + ModelConstants.ENTITY_TYPE_COLUMN + EQUALS_PARAM +
"AND " + ModelConstants.ENTITY_ID_COLUMN + EQUALS_PARAM +
"AND " + ModelConstants.KEY_COLUMN + EQUALS_PARAM);
}
return findLatestStmt;
}
private PreparedStatement getFindAllLatestStmt() {
if (findAllLatestStmt == null) {
findAllLatestStmt = prepare(SELECT_PREFIX +
ModelConstants.KEY_COLUMN + "," +
ModelConstants.TS_COLUMN + "," +
ModelConstants.STRING_VALUE_COLUMN + "," +
ModelConstants.BOOLEAN_VALUE_COLUMN + "," +
ModelConstants.LONG_VALUE_COLUMN + "," +
ModelConstants.DOUBLE_VALUE_COLUMN + " " +
"FROM " + ModelConstants.TS_KV_LATEST_CF + " " +
"WHERE " + ModelConstants.ENTITY_TYPE_COLUMN + EQUALS_PARAM +
"AND " + ModelConstants.ENTITY_ID_COLUMN + EQUALS_PARAM);
}
return findAllLatestStmt;
}
private static String getColumnName(DataType type) {
switch (type) {
case BOOLEAN:
return ModelConstants.BOOLEAN_VALUE_COLUMN;
case STRING:
return ModelConstants.STRING_VALUE_COLUMN;
case LONG:
return ModelConstants.LONG_VALUE_COLUMN;
case DOUBLE:
return ModelConstants.DOUBLE_VALUE_COLUMN;
default:
throw new RuntimeException("Not implemented!");
}
}
private static void addValue(KvEntry kvEntry, BoundStatement stmt, int column) {
switch (kvEntry.getDataType()) {
case BOOLEAN:
Optional<Boolean> booleanValue = kvEntry.getBooleanValue();
if (booleanValue.isPresent()) {
stmt.setBool(column, booleanValue.get().booleanValue());
}
break;
case STRING:
Optional<String> stringValue = kvEntry.getStrValue();
if (stringValue.isPresent()) {
stmt.setString(column, stringValue.get());
}
break;
case LONG:
Optional<Long> longValue = kvEntry.getLongValue();
if (longValue.isPresent()) {
stmt.setLong(column, longValue.get().longValue());
}
break;
case DOUBLE:
Optional<Double> doubleValue = kvEntry.getDoubleValue();
if (doubleValue.isPresent()) {
stmt.setDouble(column, doubleValue.get().doubleValue());
}
break;
}
}
}