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Prohibit LinkedList (#6112) 

* Prohibit LinkedList

* Fix tests

* Fix

* Remove unused import
This commit is contained in:
Roman Leventov 2018-09-14 04:07:06 +03:00 committed by Jonathan Wei
parent fd6786ac6c
commit d50b69e6d4
25 changed files with 120 additions and 124 deletions
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4
api/src/main/java/org/apache/druid/guice/LifecycleScope.java
View File

@ -19,13 +19,13 @@
package org.apache.druid.guice;
import com.google.common.collect.Lists;
import com.google.inject.Key;
import com.google.inject.Provider;
import com.google.inject.Scope;
import org.apache.druid.java.util.common.lifecycle.Lifecycle;
import org.apache.druid.java.util.common.logger.Logger;
import java.util.ArrayList;
import java.util.List;
/**
@ -37,7 +37,7 @@ public class LifecycleScope implements Scope
private final Lifecycle.Stage stage;
private Lifecycle lifecycle;
private final List<Object> instances = Lists.newLinkedList();
private final List<Object> instances = new ArrayList<>();
public LifecycleScope(Lifecycle.Stage stage)
{

4
codestyle/druid-forbidden-apis.txt
View File

@ -5,3 +5,7 @@ com.google.common.collect.Iterators#emptyIterator() @ Use java.util.Collections#
com.google.common.base.Charsets @ Use java.nio.charset.StandardCharsets instead
java.io.File#toURL() @ Use java.io.File#toURI() and java.net.URI#toURL() instead
org.apache.commons.io.FileUtils#getTempDirectory() @ Use org.junit.rules.TemporaryFolder for tests instead
java.util.LinkedList @ Use ArrayList or ArrayDeque instead
com.google.common.collect.Lists#newLinkedList() @ Use ArrayList or ArrayDeque instead
com.google.common.collect.Lists#newLinkedList(java.lang.Iterable) @ Use ArrayList or ArrayDeque instead

4
extensions-core/histogram/src/test/java/org/apache/druid/query/aggregation/histogram/ApproximateHistogramTest.java
View File

@ -20,12 +20,12 @@
package org.apache.druid.query.aggregation.histogram;
import com.google.common.collect.Iterators;
import com.google.common.collect.Lists;
import org.apache.druid.java.util.common.StringUtils;
import org.junit.Assert;
import org.junit.Test;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Random;
@ -239,7 +239,7 @@ public class ApproximateHistogramTest
randNums[i] = (float) rand.nextGaussian();
}
List<ApproximateHistogram> randHist = Lists.newLinkedList();
List<ApproximateHistogram> randHist = new ArrayList<>();
Iterator<ApproximateHistogram> it = Iterators.cycle(randHist);
for (int k = 0; k < numRand; ++k) {

6
extensions-core/kafka-indexing-service/src/main/java/org/apache/druid/indexing/kafka/IncrementalPublishingKafkaIndexTaskRunner.java
View File

@ -99,11 +99,11 @@ import javax.ws.rs.core.Response;
import java.io.File;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
@ -181,8 +181,8 @@ public class IncrementalPublishingKafkaIndexTaskRunner implements KafkaIndexTask
private final RowIngestionMeters rowIngestionMeters;
private final Set<String> publishingSequences = Sets.newConcurrentHashSet();
private final List<ListenableFuture<SegmentsAndMetadata>> publishWaitList = new LinkedList<>();
private final List<ListenableFuture<SegmentsAndMetadata>> handOffWaitList = new LinkedList<>();
private final List<ListenableFuture<SegmentsAndMetadata>> publishWaitList = new ArrayList<>();
private final List<ListenableFuture<SegmentsAndMetadata>> handOffWaitList = new ArrayList<>();
private volatile DateTime startTime;
private volatile Status status = Status.NOT_STARTED; // this is only ever set by the task runner thread (runThread)

4
hll/src/test/java/org/apache/druid/hll/HyperLogLogCollectorBenchmark.java
View File

@ -23,7 +23,6 @@ import com.google.caliper.Param;
import com.google.caliper.Runner;
import com.google.caliper.SimpleBenchmark;
import com.google.common.base.Preconditions;
import com.google.common.collect.Lists;
import com.google.common.hash.HashFunction;
import com.google.common.hash.Hashing;
import sun.misc.Unsafe;
@ -31,6 +30,7 @@ import sun.misc.Unsafe;
import java.lang.reflect.Field;
import java.nio.Buffer;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
@ -41,7 +41,7 @@ public class HyperLogLogCollectorBenchmark extends SimpleBenchmark
{
private final HashFunction fn = Hashing.murmur3_128();
private final List<HyperLogLogCollector> collectors = Lists.newLinkedList();
private final List<HyperLogLogCollector> collectors = new ArrayList<>();
@Param({"true"}) boolean targetIsDirect;
@Param({"default", "random", "0"}) String alignment;

13
indexing-service/src/test/java/org/apache/druid/indexing/common/task/AppenderatorDriverRealtimeIndexTaskTest.java
View File

@ -29,6 +29,7 @@ import com.google.common.collect.Lists;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
import org.apache.commons.io.FileUtils;
import org.apache.druid.client.cache.CacheConfig;
import org.apache.druid.client.cache.CachePopulatorStats;
import org.apache.druid.client.cache.MapCache;
@ -49,12 +50,12 @@ import org.apache.druid.discovery.DruidNodeAnnouncer;
import org.apache.druid.discovery.LookupNodeService;
import org.apache.druid.indexer.IngestionState;
import org.apache.druid.indexer.TaskState;
import org.apache.druid.indexer.TaskStatus;
import org.apache.druid.indexing.common.Counters;
import org.apache.druid.indexing.common.IngestionStatsAndErrorsTaskReportData;
import org.apache.druid.indexing.common.SegmentLoaderFactory;
import org.apache.druid.indexing.common.TaskReport;
import org.apache.druid.indexing.common.TaskReportFileWriter;
import org.apache.druid.indexer.TaskStatus;
import org.apache.druid.indexing.common.TaskToolbox;
import org.apache.druid.indexing.common.TaskToolboxFactory;
import org.apache.druid.indexing.common.TestUtils;
@ -133,7 +134,6 @@ import org.apache.druid.timeline.DataSegment;
import org.apache.druid.timeline.partition.LinearShardSpec;
import org.apache.druid.timeline.partition.NumberedShardSpec;
import org.apache.druid.utils.Runnables;
import org.apache.commons.io.FileUtils;
import org.easymock.EasyMock;
import org.joda.time.DateTime;
import org.joda.time.Period;
@ -149,10 +149,11 @@ import javax.annotation.Nullable;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.Deque;
import java.util.List;
import java.util.Map;
import java.util.Optional;
@ -178,7 +179,7 @@ public class AppenderatorDriverRealtimeIndexTaskTest
private static class TestFirehose implements Firehose
{
private final InputRowParser<Map<String, Object>> parser;
private final List<Map<String, Object>> queue = new LinkedList<>();
private final Deque<Optional<Map<String, Object>>> queue = new ArrayDeque<>();
private boolean closed = false;
public TestFirehose(final InputRowParser<Map<String, Object>> parser)
@ -189,7 +190,7 @@ public class AppenderatorDriverRealtimeIndexTaskTest
public void addRows(List<Map<String, Object>> rows)
{
synchronized (this) {
queue.addAll(rows);
rows.stream().map(Optional::ofNullable).forEach(queue::add);
notifyAll();
}
}
@ -215,7 +216,7 @@ public class AppenderatorDriverRealtimeIndexTaskTest
public InputRow nextRow()
{
synchronized (this) {
final InputRow row = parser.parseBatch(queue.remove(0)).get(0);
final InputRow row = parser.parseBatch(queue.removeFirst().orElse(null)).get(0);
if (row != null && row.getRaw(FAIL_DIM) != null) {
throw new ParseException(FAIL_DIM);
}

12
indexing-service/src/test/java/org/apache/druid/indexing/common/task/RealtimeIndexTaskTest.java
View File

@ -46,9 +46,9 @@ import org.apache.druid.discovery.DataNodeService;
import org.apache.druid.discovery.DruidNodeAnnouncer;
import org.apache.druid.discovery.LookupNodeService;
import org.apache.druid.indexer.TaskState;
import org.apache.druid.indexer.TaskStatus;
import org.apache.druid.indexing.common.Counters;
import org.apache.druid.indexing.common.SegmentLoaderFactory;
import org.apache.druid.indexer.TaskStatus;
import org.apache.druid.indexing.common.TaskToolbox;
import org.apache.druid.indexing.common.TaskToolboxFactory;
import org.apache.druid.indexing.common.TestUtils;
@ -138,10 +138,12 @@ import org.junit.rules.TemporaryFolder;
import javax.annotation.Nullable;
import java.io.File;
import java.nio.file.Files;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.Deque;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
@ -161,7 +163,7 @@ public class RealtimeIndexTaskTest
private static class TestFirehose implements Firehose
{
private final InputRowParser<Map<String, Object>> parser;
private final List<Map<String, Object>> queue = new LinkedList<>();
private final Deque<Optional<Map<String, Object>>> queue = new ArrayDeque<>();
private boolean closed = false;
public TestFirehose(final InputRowParser<Map<String, Object>> parser)
@ -172,7 +174,7 @@ public class RealtimeIndexTaskTest
public void addRows(List<Map<String, Object>> rows)
{
synchronized (this) {
queue.addAll(rows);
rows.stream().map(Optional::ofNullable).forEach(queue::add);
notifyAll();
}
}
@ -198,7 +200,7 @@ public class RealtimeIndexTaskTest
public InputRow nextRow()
{
synchronized (this) {
final InputRow row = parser.parseBatch(queue.remove(0)).get(0);
final InputRow row = parser.parseBatch(queue.removeFirst().orElse(null)).get(0);
if (row != null && row.getRaw(FAIL_DIM) != null) {
throw new ParseException(FAIL_DIM);
}

3
indexing-service/src/test/java/org/apache/druid/indexing/firehose/IngestSegmentFirehoseFactoryTest.java
View File

@ -110,7 +110,6 @@ import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
@ -324,7 +323,7 @@ public class IngestSegmentFirehoseFactoryTest
null,
new NoopTestTaskFileWriter()
);
Collection<Object[]> values = new LinkedList<>();
Collection<Object[]> values = new ArrayList<>();
for (InputRowParser parser : Arrays.<InputRowParser>asList(
ROW_PARSER,
new MapInputRowParser(

5
java-util/src/main/java/org/apache/druid/java/util/http/client/io/AppendableByteArrayInputStream.java
View File

@ -23,7 +23,8 @@ import org.apache.druid.java.util.common.logger.Logger;
import java.io.IOException;
import java.io.InputStream;
import java.util.LinkedList;
import java.util.ArrayDeque;
import java.util.Deque;
/**
*/
@ -31,7 +32,7 @@ public class AppendableByteArrayInputStream extends InputStream
{
private static final Logger log = new Logger(AppendableByteArrayInputStream.class);
private final LinkedList<byte[]> bytes = new LinkedList<byte[]>();
private final Deque<byte[]> bytes = new ArrayDeque<>();
private final SingleByteReaderDoer singleByteReaderDoer = new SingleByteReaderDoer();
private volatile boolean done = false;

18
processing/src/main/java/org/apache/druid/query/aggregation/AggregatorUtil.java
View File

@ -37,8 +37,9 @@ import org.apache.druid.segment.FloatColumnSelector;
import org.apache.druid.segment.LongColumnSelector;
import org.apache.druid.segment.virtual.ExpressionSelectors;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
@ -113,18 +114,20 @@ public class AggregatorUtil
*/
public static List<PostAggregator> pruneDependentPostAgg(List<PostAggregator> postAggregatorList, String postAggName)
{
LinkedList<PostAggregator> rv = Lists.newLinkedList();
ArrayList<PostAggregator> rv = new ArrayList<>();
Set<String> deps = new HashSet<>();
deps.add(postAggName);
// Iterate backwards to find the last calculated aggregate and add dependent aggregator as we find dependencies in reverse order
// Iterate backwards to find the last calculated aggregate and add dependent aggregator as we find dependencies
// in reverse order
for (PostAggregator agg : Lists.reverse(postAggregatorList)) {
if (deps.contains(agg.getName())) {
rv.addFirst(agg); // add to the beginning of List
rv.add(agg); // add to the beginning of List
deps.remove(agg.getName());
deps.addAll(agg.getDependentFields());
}
}
Collections.reverse(rv);
return rv;
}
@ -135,10 +138,7 @@ public class AggregatorUtil
)
{
List<PostAggregator> condensedPostAggs = AggregatorUtil.pruneDependentPostAgg(
postAggList,
metric
);
List<PostAggregator> condensedPostAggs = AggregatorUtil.pruneDependentPostAgg(postAggList, metric);
// calculate dependent aggregators for these postAgg
Set<String> dependencySet = new HashSet<>();
dependencySet.add(metric);
@ -152,7 +152,7 @@ public class AggregatorUtil
condensedAggs.add(aggregatorSpec);
}
}
return new Pair(condensedAggs, condensedPostAggs);
return new Pair<>(condensedAggs, condensedPostAggs);
}
public static BaseFloatColumnValueSelector makeColumnValueSelectorWithFloatDefault(

7
processing/src/main/java/org/apache/druid/query/topn/AggregateTopNMetricFirstAlgorithm.java
View File

@ -75,11 +75,8 @@ public class AggregateTopNMetricFirstAlgorithm implements TopNAlgorithm<int[], T
)
{
final String metric = query.getTopNMetricSpec().getMetricName(query.getDimensionSpec());
Pair<List<AggregatorFactory>, List<PostAggregator>> condensedAggPostAggPair = AggregatorUtil.condensedAggregators(
query.getAggregatorSpecs(),
query.getPostAggregatorSpecs(),
metric
);
Pair<List<AggregatorFactory>, List<PostAggregator>> condensedAggPostAggPair =
AggregatorUtil.condensedAggregators(query.getAggregatorSpecs(), query.getPostAggregatorSpecs(), metric);
if (condensedAggPostAggPair.lhs.isEmpty() && condensedAggPostAggPair.rhs.isEmpty()) {
throw new ISE("WTF! Can't find the metric to do topN over?");

8
processing/src/main/java/org/apache/druid/query/topn/TopNQueryBuilder.java
View File

@ -37,7 +37,9 @@ import org.apache.druid.segment.VirtualColumn;
import org.apache.druid.segment.VirtualColumns;
import org.joda.time.Interval;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
@ -247,13 +249,13 @@ public class TopNQueryBuilder
@SuppressWarnings("unchecked")
public TopNQueryBuilder aggregators(List<? extends AggregatorFactory> a)
{
aggregatorSpecs = (List<AggregatorFactory>) a;
aggregatorSpecs = new ArrayList<>(a); // defensive copy
return this;
}
public TopNQueryBuilder postAggregators(List<PostAggregator> p)
public TopNQueryBuilder postAggregators(Collection<PostAggregator> p)
{
postAggregatorSpecs = p;
postAggregatorSpecs = new ArrayList<>(p); // defensive copy
return this;
}

3
processing/src/test/java/org/apache/druid/query/aggregation/AggregatorUtilTest.java
View File

@ -172,7 +172,8 @@ public class AggregatorUtilTest
);
Assert.assertEquals(
new Pair(Lists.newArrayList(agg1, agg2), Collections.singletonList(postAgg2)), AggregatorUtil.condensedAggregators(
new Pair<>(Lists.newArrayList(agg1, agg2), Collections.singletonList(postAgg2)),
AggregatorUtil.condensedAggregators(
Lists.newArrayList(agg1, agg2),
Lists.newArrayList(postAgg1, postAgg2),
"postAgg"

9
processing/src/test/java/org/apache/druid/query/scan/ScanQueryRunnerTest.java
View File

@ -54,6 +54,7 @@ import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
@ -754,11 +755,11 @@ public class ScanQueryRunnerTest
@Override
public ScanResultValue apply(ScanResultValue input)
{
List mapEvents = Lists.newLinkedList();
List events = ((List) input.getEvents());
List<Map<String, Object>> mapEvents = new ArrayList<>();
List<?> events = ((List<?>) input.getEvents());
for (Object event : events) {
Iterator compactedEventIter = ((List) event).iterator();
Map mapEvent = new LinkedHashMap();
Iterator<?> compactedEventIter = ((List<?>) event).iterator();
Map<String, Object> mapEvent = new LinkedHashMap<>();
for (String column : input.getColumns()) {
mapEvent.put(column, compactedEventIter.next());
}

56
processing/src/test/java/org/apache/druid/query/search/SearchQueryRunnerTest.java
View File

@ -21,7 +21,6 @@ package org.apache.druid.query.search;
import com.google.common.base.Suppliers;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import org.apache.druid.common.config.NullHandling;
import org.apache.druid.data.input.MapBasedInputRow;
import org.apache.druid.java.util.common.DateTimes;
@ -64,6 +63,7 @@ import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
@ -135,7 +135,7 @@ public class SearchQueryRunnerTest
.query("a")
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "automotive", 93));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "mezzanine", 279));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "travel", 93));
@ -178,7 +178,7 @@ public class SearchQueryRunnerTest
}
);
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "automotive", 91));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "mezzanine", 273));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "travel", 91));
@ -207,7 +207,7 @@ public class SearchQueryRunnerTest
.query("e")
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.placementDimension, "preferred", 1209));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.placementishDimension, "e", 93));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.placementishDimension, "preferred", 1209));
@ -232,7 +232,7 @@ public class SearchQueryRunnerTest
.query("e")
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.placementishDimension, "e", 93));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.placementDimension, "preferred", 1209));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.placementishDimension, "preferred", 1209));
@ -250,7 +250,7 @@ public class SearchQueryRunnerTest
.query(new FragmentSearchQuerySpec(Arrays.asList("auto", "ve")))
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "automotive", 93));
checkSearchQuery(searchQuery, expectedHits);
@ -259,7 +259,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchWithDimensionQuality()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "automotive", 93));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "mezzanine", 279));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "travel", 93));
@ -281,7 +281,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchWithDimensionProvider()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.marketDimension, "total_market", 186));
checkSearchQuery(
@ -299,7 +299,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchWithDimensionsQualityAndProvider()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "automotive", 93));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "mezzanine", 279));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "travel", 93));
@ -327,7 +327,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchWithDimensionsPlacementAndProvider()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.marketDimension, "total_market", 186));
checkSearchQuery(
@ -352,7 +352,7 @@ public class SearchQueryRunnerTest
public void testSearchWithExtractionFilter1()
{
final String automotiveSnowman = "automotive☃";
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, automotiveSnowman, 93));
final LookupExtractionFn lookupExtractionFn = new LookupExtractionFn(
@ -391,7 +391,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchWithSingleFilter1()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "mezzanine", 93));
checkSearchQuery(
@ -415,7 +415,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchWithSingleFilter2()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.marketDimension, "total_market", 186));
checkSearchQuery(
@ -434,7 +434,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchMultiAndFilter()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "automotive", 93));
DimFilter filter = new AndDimFilter(
@ -458,7 +458,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchWithMultiOrFilter()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "automotive", 93));
DimFilter filter = new OrDimFilter(
@ -482,7 +482,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchWithEmptyResults()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
checkSearchQuery(
Druids.newSearchQueryBuilder()
@ -498,7 +498,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchWithFilterEmptyResults()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
DimFilter filter = new AndDimFilter(
new SelectorDimFilter(QueryRunnerTestHelper.marketDimension, "total_market", null),
@ -521,7 +521,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchNonExistingDimension()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
checkSearchQuery(
Druids.newSearchQueryBuilder()
@ -538,7 +538,7 @@ public class SearchQueryRunnerTest
@Test
public void testSearchAll()
{
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.marketDimension, "spot", 837));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.marketDimension, "total_market", 186));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.marketDimension, "upfront", 186));
@ -575,7 +575,7 @@ public class SearchQueryRunnerTest
.sortSpec(new SearchSortSpec(StringComparators.NUMERIC))
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.placementishDimension, "a", 93));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "automotive", 93));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.qualityDimension, "entertainment", 93));
@ -609,7 +609,7 @@ public class SearchQueryRunnerTest
))
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit("__time2", "Friday", 169));
checkSearchQuery(searchQuery, expectedHits);
@ -631,7 +631,7 @@ public class SearchQueryRunnerTest
.query("1297123200000")
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(Column.TIME_COLUMN_NAME, "1297123200000", 13));
checkSearchQuery(searchQuery, expectedHits);
}
@ -655,7 +655,7 @@ public class SearchQueryRunnerTest
.query("1297123200000")
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(Column.TIME_COLUMN_NAME, "super-1297123200000", 13));
checkSearchQuery(searchQuery, expectedHits);
}
@ -676,7 +676,7 @@ public class SearchQueryRunnerTest
.query("100.7")
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.indexMetric, "100.706057", 1));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.indexMetric, "100.775597", 1));
checkSearchQuery(searchQuery, expectedHits);
@ -701,7 +701,7 @@ public class SearchQueryRunnerTest
.query("100.7")
.build();
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit(QueryRunnerTestHelper.indexMetric, "super-100.706057", 1));
expectedHits.add(new SearchHit(QueryRunnerTestHelper.indexMetric, "super-100.775597", 1));
checkSearchQuery(searchQuery, expectedHits);
@ -751,7 +751,7 @@ public class SearchQueryRunnerTest
QueryRunnerTestHelper.NOOP_QUERYWATCHER
);
QueryRunner runner = factory.createRunner(new QueryableIndexSegment("asdf", TestIndex.persistRealtimeAndLoadMMapped(index)));
List<SearchHit> expectedHits = Lists.newLinkedList();
List<SearchHit> expectedHits = new ArrayList<>();
expectedHits.add(new SearchHit("table", "table", 1));
expectedHits.add(new SearchHit("table", NullHandling.defaultStringValue(), 1));
checkSearchQuery(searchQuery, runner, expectedHits);
@ -769,7 +769,7 @@ public class SearchQueryRunnerTest
.intervals(QueryRunnerTestHelper.fullOnInterval)
.build();
List<SearchHit> noHit = Lists.newLinkedList();
List<SearchHit> noHit = new ArrayList<>();
checkSearchQuery(searchQuery, noHit);
}
@ -782,7 +782,7 @@ public class SearchQueryRunnerTest
private void checkSearchQuery(Query searchQuery, QueryRunner runner, List<SearchHit> expectedResults)
{
Iterable<Result<SearchResultValue>> results = runner.run(QueryPlus.wrap(searchQuery), ImmutableMap.of()).toList();
List<SearchHit> copy = Lists.newLinkedList(expectedResults);
List<SearchHit> copy = new ArrayList<>(expectedResults);
for (Result<SearchResultValue> result : results) {
Assert.assertEquals(DateTimes.of("2011-01-12T00:00:00.000Z"), result.getTimestamp());
Assert.assertTrue(result.getValue() instanceof Iterable);

6
processing/src/test/java/org/apache/druid/segment/data/BenchmarkIndexibleWrites.java
View File

@ -36,9 +36,9 @@ import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.Random;
import java.util.concurrent.ConcurrentHashMap;
@ -196,7 +196,7 @@ public class BenchmarkIndexibleWrites extends AbstractBenchmark
)
);
final AtomicInteger index = new AtomicInteger(0);
List<ListenableFuture<?>> futures = new LinkedList<>();
List<ListenableFuture<?>> futures = new ArrayList<>();
final Integer loops = totalIndexSize / concurrentThreads;
@ -249,7 +249,7 @@ public class BenchmarkIndexibleWrites extends AbstractBenchmark
);
final AtomicInteger index = new AtomicInteger(0);
final AtomicInteger queryableIndex = new AtomicInteger(0);
List<ListenableFuture<?>> futures = new LinkedList<>();
List<ListenableFuture<?>> futures = new ArrayList<>();
final Integer loops = totalIndexSize / concurrentThreads;

5
processing/src/test/java/org/apache/druid/segment/incremental/OnheapIncrementalIndexBenchmark.java
View File

@ -68,7 +68,6 @@ import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
@ -347,8 +346,8 @@ public class OnheapIncrementalIndexBenchmark extends AbstractBenchmark
);
final long timestamp = System.currentTimeMillis();
final Interval queryInterval = Intervals.of("1900-01-01T00:00:00Z/2900-01-01T00:00:00Z");
final List<ListenableFuture<?>> indexFutures = new LinkedList<>();
final List<ListenableFuture<?>> queryFutures = new LinkedList<>();
final List<ListenableFuture<?>> indexFutures = new ArrayList<>();
final List<ListenableFuture<?>> queryFutures = new ArrayList<>();
final Segment incrementalIndexSegment = new IncrementalIndexSegment(incrementalIndex, null);
final QueryRunnerFactory factory = new TimeseriesQueryRunnerFactory(
new TimeseriesQueryQueryToolChest(QueryRunnerTestHelper.NoopIntervalChunkingQueryRunnerDecorator()),

4
server/src/main/java/org/apache/druid/client/CachingQueryRunner.java
View File

@ -38,10 +38,10 @@ import org.apache.druid.query.QueryToolChest;
import org.apache.druid.query.SegmentDescriptor;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Map;
public class CachingQueryRunner<T> implements QueryRunner<T>
@ -134,7 +134,7 @@ public class CachingQueryRunner<T> implements QueryRunner<T>
}
}
final Collection<ListenableFuture<?>> cacheFutures = Collections.synchronizedList(new LinkedList<>());
final Collection<ListenableFuture<?>> cacheFutures = Collections.synchronizedList(new ArrayList<>());
if (populateCache) {
final Function cacheFn = strategy.prepareForSegmentLevelCache();
return cachePopulator.wrap(base.run(queryPlus, responseContext), value -> cacheFn.apply(value), cache, key);

4
server/src/main/java/org/apache/druid/client/cache/BackgroundCachePopulator.java vendored
View File

@ -32,7 +32,7 @@ import org.apache.druid.java.util.common.guava.Sequences;
import org.apache.druid.java.util.common.logger.Logger;
import java.io.ByteArrayOutputStream;
import java.util.LinkedList;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.function.Function;
@ -67,7 +67,7 @@ public class BackgroundCachePopulator implements CachePopulator
final Cache.NamedKey cacheKey
)
{
final List<ListenableFuture<CacheType>> cacheFutures = new LinkedList<>();
final List<ListenableFuture<CacheType>> cacheFutures = new ArrayList<>();
final Sequence<T> wrappedSequence = Sequences.map(
sequence,

4
server/src/main/java/org/apache/druid/client/cache/MapCache.java vendored
View File

@ -19,12 +19,12 @@
package org.apache.druid.client.cache;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.primitives.Ints;
import org.apache.druid.java.util.emitter.service.ServiceEmitter;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
@ -127,7 +127,7 @@ public class MapCache implements Cache
}
synchronized (clearLock) {
Iterator<ByteBuffer> iter = baseMap.keySet().iterator();
List<ByteBuffer> toRemove = Lists.newLinkedList();
List<ByteBuffer> toRemove = new ArrayList<>();
while (iter.hasNext()) {
ByteBuffer next = iter.next();

19
server/src/main/java/org/apache/druid/metadata/SQLMetadataStorageActionHandler.java
View File

@ -24,7 +24,6 @@ import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Optional;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import org.apache.druid.indexer.TaskInfo;
import org.apache.druid.java.util.common.DateTimes;
@ -47,6 +46,7 @@ import javax.annotation.Nullable;
import java.io.IOException;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
@ -488,20 +488,10 @@ public abstract class SQLMetadataStorageActionHandler<EntryType, StatusType, Log
.bind("entryId", entryId)
.map(ByteArrayMapper.FIRST)
.fold(
Lists.newLinkedList(),
new Folder3<List<LogType>, byte[]>()
{
@Override
public List<LogType> fold(
List<LogType> list, byte[] bytes, FoldController control, StatementContext ctx
) throws SQLException
{
new ArrayList<>(),
(List<LogType> list, byte[] bytes, FoldController control, StatementContext ctx) -> {
try {
list.add(
jsonMapper.readValue(
bytes, logType
)
);
list.add(jsonMapper.readValue(bytes, logType));
return list;
}
catch (IOException e) {
@ -512,7 +502,6 @@ public abstract class SQLMetadataStorageActionHandler<EntryType, StatusType, Log
throw new SQLException(e);
}
}
}
);
}
}

4
server/src/main/java/org/apache/druid/server/coordination/SegmentLoadDropHandler.java
View File

@ -624,7 +624,7 @@ public class SegmentLoadDropHandler implements DataSegmentChangeHandler
synchronized (lock) {
try {
if (!(finished && queue.isEmpty())) {
final List<DataSegment> segments = Lists.newLinkedList();
final List<DataSegment> segments = new ArrayList<>();
queue.drainTo(segments);
try {
announcer.announceSegments(segments);
@ -656,7 +656,7 @@ public class SegmentLoadDropHandler implements DataSegmentChangeHandler
finished = true;
// announce any remaining segments
try {
final List<DataSegment> segments = Lists.newLinkedList();
final List<DataSegment> segments = new ArrayList<>();
queue.drainTo(segments);
announcer.announceSegments(segments);
}

4
server/src/test/java/org/apache/druid/client/cache/ByteCountingLRUMapTest.java vendored
View File

@ -19,12 +19,12 @@
package org.apache.druid.client.cache;
import com.google.common.collect.Lists;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
@ -70,7 +70,7 @@ public class ByteCountingLRUMapTest
Assert.assertEquals(oneByte, ByteBuffer.wrap(map.get(twoByte)));
Iterator<ByteBuffer> it = map.keySet().iterator();
List<ByteBuffer> toRemove = Lists.newLinkedList();
List<ByteBuffer> toRemove = new ArrayList<>();
while (it.hasNext()) {
ByteBuffer buf = it.next();
if (buf.remaining() == 10) {

5
server/src/test/java/org/apache/druid/metadata/SQLMetadataConnectorTest.java
View File

@ -26,7 +26,8 @@ import org.junit.Test;
import org.skife.jdbi.v2.Handle;
import org.skife.jdbi.v2.tweak.HandleCallback;
import java.util.LinkedList;
import java.util.ArrayList;
import java.util.List;
public class SQLMetadataConnectorTest
@ -47,7 +48,7 @@ public class SQLMetadataConnectorTest
@Test
public void testCreateTables()
{
final LinkedList<String> tables = new LinkedList<String>();
final List<String> tables = new ArrayList<>();
final String entryType = tablesConfig.getTaskEntryType();
tables.add(tablesConfig.getConfigTable());
tables.add(tablesConfig.getSegmentsTable());

5
server/src/test/java/org/apache/druid/server/coordination/SegmentLoadDropHandlerTest.java
View File

@ -23,7 +23,6 @@ import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import org.apache.druid.java.util.common.Intervals;
@ -274,7 +273,7 @@ public class SegmentLoadDropHandlerTest
@Test
public void testLoadCache() throws Exception
{
List<DataSegment> segments = Lists.newLinkedList();
List<DataSegment> segments = new ArrayList<>();
for (int i = 0; i < COUNT; ++i) {
segments.add(makeSegment("test" + i, "1", Intervals.of("P1d/2011-04-01")));
segments.add(makeSegment("test" + i, "1", Intervals.of("P1d/2011-04-02")));
@ -406,7 +405,7 @@ public class SegmentLoadDropHandlerTest
announcer, EasyMock.createNiceMock(DataSegmentServerAnnouncer.class), segmentManager
);
List<DataSegment> segments = Lists.newLinkedList();
List<DataSegment> segments = new ArrayList<>();
for (int i = 0; i < COUNT; ++i) {
segments.add(makeSegment("test" + i, "1", Intervals.of("P1d/2011-04-01")));
segments.add(makeSegment("test" + i, "1", Intervals.of("P1d/2011-04-02")));