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author | Sean Owen <sowen@cloudera.com> | 2017-02-16 12:32:45 +0000 |
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committer | Sean Owen <sowen@cloudera.com> | 2017-02-16 12:32:45 +0000 |
commit | 0e2405490f2056728d1353abbac6f3ea177ae533 (patch) | |
tree | 1a9ec960faec7abcb8d8fbac43b6a6dc633d2297 /external/java8-tests/src/test/java | |
parent | 3871d94a695d47169720e877f77ff1e4bede43ee (diff) | |
download | spark-0e2405490f2056728d1353abbac6f3ea177ae533.tar.gz spark-0e2405490f2056728d1353abbac6f3ea177ae533.tar.bz2 spark-0e2405490f2056728d1353abbac6f3ea177ae533.zip |
[SPARK-19550][BUILD][CORE][WIP] Remove Java 7 support
- Move external/java8-tests tests into core, streaming, sql and remove
- Remove MaxPermGen and related options
- Fix some reflection / TODOs around Java 8+ methods
- Update doc references to 1.7/1.8 differences
- Remove Java 7/8 related build profiles
- Update some plugins for better Java 8 compatibility
- Fix a few Java-related warnings
For the future:
- Update Java 8 examples to fully use Java 8
- Update Java tests to use lambdas for simplicity
- Update Java internal implementations to use lambdas
## How was this patch tested?
Existing tests
Author: Sean Owen <sowen@cloudera.com>
Closes #16871 from srowen/SPARK-19493.
Diffstat (limited to 'external/java8-tests/src/test/java')
3 files changed, 0 insertions, 1300 deletions
diff --git a/external/java8-tests/src/test/java/test/org/apache/spark/java8/Java8RDDAPISuite.java b/external/java8-tests/src/test/java/test/org/apache/spark/java8/Java8RDDAPISuite.java deleted file mode 100644 index fa3a66e73c..0000000000 --- a/external/java8-tests/src/test/java/test/org/apache/spark/java8/Java8RDDAPISuite.java +++ /dev/null @@ -1,356 +0,0 @@ -/* - * 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 test.org.apache.spark.java8; - -import java.io.File; -import java.io.Serializable; -import java.util.*; - -import scala.Tuple2; - -import com.google.common.collect.Iterables; -import com.google.common.io.Files; -import org.apache.hadoop.io.IntWritable; -import org.apache.hadoop.io.Text; -import org.apache.hadoop.mapred.SequenceFileOutputFormat; -import org.junit.After; -import org.junit.Assert; -import org.junit.Before; -import org.junit.Test; - -import org.apache.spark.api.java.JavaDoubleRDD; -import org.apache.spark.api.java.JavaPairRDD; -import org.apache.spark.api.java.JavaRDD; -import org.apache.spark.api.java.JavaSparkContext; -import org.apache.spark.api.java.Optional; -import org.apache.spark.api.java.function.*; -import org.apache.spark.util.Utils; - -/** - * Most of these tests replicate org.apache.spark.JavaAPISuite using java 8 - * lambda syntax. - */ -public class Java8RDDAPISuite implements Serializable { - private static int foreachCalls = 0; - private transient JavaSparkContext sc; - - @Before - public void setUp() { - sc = new JavaSparkContext("local", "JavaAPISuite"); - } - - @After - public void tearDown() { - sc.stop(); - sc = null; - } - - @Test - public void foreachWithAnonymousClass() { - foreachCalls = 0; - JavaRDD<String> rdd = sc.parallelize(Arrays.asList("Hello", "World")); - rdd.foreach(new VoidFunction<String>() { - @Override - public void call(String s) { - foreachCalls++; - } - }); - Assert.assertEquals(2, foreachCalls); - } - - @Test - public void foreach() { - foreachCalls = 0; - JavaRDD<String> rdd = sc.parallelize(Arrays.asList("Hello", "World")); - rdd.foreach(x -> foreachCalls++); - Assert.assertEquals(2, foreachCalls); - } - - @Test - public void groupBy() { - JavaRDD<Integer> rdd = sc.parallelize(Arrays.asList(1, 1, 2, 3, 5, 8, 13)); - Function<Integer, Boolean> isOdd = x -> x % 2 == 0; - JavaPairRDD<Boolean, Iterable<Integer>> oddsAndEvens = rdd.groupBy(isOdd); - Assert.assertEquals(2, oddsAndEvens.count()); - Assert.assertEquals(2, Iterables.size(oddsAndEvens.lookup(true).get(0))); // Evens - Assert.assertEquals(5, Iterables.size(oddsAndEvens.lookup(false).get(0))); // Odds - - oddsAndEvens = rdd.groupBy(isOdd, 1); - Assert.assertEquals(2, oddsAndEvens.count()); - Assert.assertEquals(2, Iterables.size(oddsAndEvens.lookup(true).get(0))); // Evens - Assert.assertEquals(5, Iterables.size(oddsAndEvens.lookup(false).get(0))); // Odds - } - - @Test - public void leftOuterJoin() { - JavaPairRDD<Integer, Integer> rdd1 = sc.parallelizePairs(Arrays.asList( - new Tuple2<>(1, 1), - new Tuple2<>(1, 2), - new Tuple2<>(2, 1), - new Tuple2<>(3, 1) - )); - JavaPairRDD<Integer, Character> rdd2 = sc.parallelizePairs(Arrays.asList( - new Tuple2<>(1, 'x'), - new Tuple2<>(2, 'y'), - new Tuple2<>(2, 'z'), - new Tuple2<>(4, 'w') - )); - List<Tuple2<Integer, Tuple2<Integer, Optional<Character>>>> joined = - rdd1.leftOuterJoin(rdd2).collect(); - Assert.assertEquals(5, joined.size()); - Tuple2<Integer, Tuple2<Integer, Optional<Character>>> firstUnmatched = - rdd1.leftOuterJoin(rdd2).filter(tup -> !tup._2()._2().isPresent()).first(); - Assert.assertEquals(3, firstUnmatched._1().intValue()); - } - - @Test - public void foldReduce() { - JavaRDD<Integer> rdd = sc.parallelize(Arrays.asList(1, 1, 2, 3, 5, 8, 13)); - Function2<Integer, Integer, Integer> add = (a, b) -> a + b; - - int sum = rdd.fold(0, add); - Assert.assertEquals(33, sum); - - sum = rdd.reduce(add); - Assert.assertEquals(33, sum); - } - - @Test - public void foldByKey() { - List<Tuple2<Integer, Integer>> pairs = Arrays.asList( - new Tuple2<>(2, 1), - new Tuple2<>(2, 1), - new Tuple2<>(1, 1), - new Tuple2<>(3, 2), - new Tuple2<>(3, 1) - ); - JavaPairRDD<Integer, Integer> rdd = sc.parallelizePairs(pairs); - JavaPairRDD<Integer, Integer> sums = rdd.foldByKey(0, (a, b) -> a + b); - Assert.assertEquals(1, sums.lookup(1).get(0).intValue()); - Assert.assertEquals(2, sums.lookup(2).get(0).intValue()); - Assert.assertEquals(3, sums.lookup(3).get(0).intValue()); - } - - @Test - public void reduceByKey() { - List<Tuple2<Integer, Integer>> pairs = Arrays.asList( - new Tuple2<>(2, 1), - new Tuple2<>(2, 1), - new Tuple2<>(1, 1), - new Tuple2<>(3, 2), - new Tuple2<>(3, 1) - ); - JavaPairRDD<Integer, Integer> rdd = sc.parallelizePairs(pairs); - JavaPairRDD<Integer, Integer> counts = rdd.reduceByKey((a, b) -> a + b); - Assert.assertEquals(1, counts.lookup(1).get(0).intValue()); - Assert.assertEquals(2, counts.lookup(2).get(0).intValue()); - Assert.assertEquals(3, counts.lookup(3).get(0).intValue()); - - Map<Integer, Integer> localCounts = counts.collectAsMap(); - Assert.assertEquals(1, localCounts.get(1).intValue()); - Assert.assertEquals(2, localCounts.get(2).intValue()); - Assert.assertEquals(3, localCounts.get(3).intValue()); - - localCounts = rdd.reduceByKeyLocally((a, b) -> a + b); - Assert.assertEquals(1, localCounts.get(1).intValue()); - Assert.assertEquals(2, localCounts.get(2).intValue()); - Assert.assertEquals(3, localCounts.get(3).intValue()); - } - - @Test - public void map() { - JavaRDD<Integer> rdd = sc.parallelize(Arrays.asList(1, 2, 3, 4, 5)); - JavaDoubleRDD doubles = rdd.mapToDouble(x -> 1.0 * x).cache(); - doubles.collect(); - JavaPairRDD<Integer, Integer> pairs = rdd.mapToPair(x -> new Tuple2<>(x, x)) - .cache(); - pairs.collect(); - JavaRDD<String> strings = rdd.map(Object::toString).cache(); - strings.collect(); - } - - @Test - public void flatMap() { - JavaRDD<String> rdd = sc.parallelize(Arrays.asList("Hello World!", - "The quick brown fox jumps over the lazy dog.")); - JavaRDD<String> words = rdd.flatMap(x -> Arrays.asList(x.split(" ")).iterator()); - - Assert.assertEquals("Hello", words.first()); - Assert.assertEquals(11, words.count()); - - JavaPairRDD<String, String> pairs = rdd.flatMapToPair(s -> { - List<Tuple2<String, String>> pairs2 = new LinkedList<>(); - for (String word : s.split(" ")) { - pairs2.add(new Tuple2<>(word, word)); - } - return pairs2.iterator(); - }); - - Assert.assertEquals(new Tuple2<>("Hello", "Hello"), pairs.first()); - Assert.assertEquals(11, pairs.count()); - - JavaDoubleRDD doubles = rdd.flatMapToDouble(s -> { - List<Double> lengths = new LinkedList<>(); - for (String word : s.split(" ")) { - lengths.add((double) word.length()); - } - return lengths.iterator(); - }); - - Assert.assertEquals(5.0, doubles.first(), 0.01); - Assert.assertEquals(11, pairs.count()); - } - - @Test - public void mapsFromPairsToPairs() { - List<Tuple2<Integer, String>> pairs = Arrays.asList( - new Tuple2<>(1, "a"), - new Tuple2<>(2, "aa"), - new Tuple2<>(3, "aaa") - ); - JavaPairRDD<Integer, String> pairRDD = sc.parallelizePairs(pairs); - - // Regression test for SPARK-668: - JavaPairRDD<String, Integer> swapped = - pairRDD.flatMapToPair(x -> Collections.singletonList(x.swap()).iterator()); - swapped.collect(); - - // There was never a bug here, but it's worth testing: - pairRDD.map(Tuple2::swap).collect(); - } - - @Test - public void mapPartitions() { - JavaRDD<Integer> rdd = sc.parallelize(Arrays.asList(1, 2, 3, 4), 2); - JavaRDD<Integer> partitionSums = rdd.mapPartitions(iter -> { - int sum = 0; - while (iter.hasNext()) { - sum += iter.next(); - } - return Collections.singletonList(sum).iterator(); - }); - - Assert.assertEquals("[3, 7]", partitionSums.collect().toString()); - } - - @Test - public void sequenceFile() { - File tempDir = Files.createTempDir(); - tempDir.deleteOnExit(); - String outputDir = new File(tempDir, "output").getAbsolutePath(); - List<Tuple2<Integer, String>> pairs = Arrays.asList( - new Tuple2<>(1, "a"), - new Tuple2<>(2, "aa"), - new Tuple2<>(3, "aaa") - ); - JavaPairRDD<Integer, String> rdd = sc.parallelizePairs(pairs); - - rdd.mapToPair(pair -> new Tuple2<>(new IntWritable(pair._1()), new Text(pair._2()))) - .saveAsHadoopFile(outputDir, IntWritable.class, Text.class, SequenceFileOutputFormat.class); - - // Try reading the output back as an object file - JavaPairRDD<Integer, String> readRDD = sc.sequenceFile(outputDir, IntWritable.class, Text.class) - .mapToPair(pair -> new Tuple2<>(pair._1().get(), pair._2().toString())); - Assert.assertEquals(pairs, readRDD.collect()); - Utils.deleteRecursively(tempDir); - } - - @Test - public void zip() { - JavaRDD<Integer> rdd = sc.parallelize(Arrays.asList(1, 2, 3, 4, 5)); - JavaDoubleRDD doubles = rdd.mapToDouble(x -> 1.0 * x); - JavaPairRDD<Integer, Double> zipped = rdd.zip(doubles); - zipped.count(); - } - - @Test - public void zipPartitions() { - JavaRDD<Integer> rdd1 = sc.parallelize(Arrays.asList(1, 2, 3, 4, 5, 6), 2); - JavaRDD<String> rdd2 = sc.parallelize(Arrays.asList("1", "2", "3", "4"), 2); - FlatMapFunction2<Iterator<Integer>, Iterator<String>, Integer> sizesFn = - (Iterator<Integer> i, Iterator<String> s) -> { - int sizeI = 0; - while (i.hasNext()) { - sizeI += 1; - i.next(); - } - int sizeS = 0; - while (s.hasNext()) { - sizeS += 1; - s.next(); - } - return Arrays.asList(sizeI, sizeS).iterator(); - }; - JavaRDD<Integer> sizes = rdd1.zipPartitions(rdd2, sizesFn); - Assert.assertEquals("[3, 2, 3, 2]", sizes.collect().toString()); - } - - @Test - public void keyBy() { - JavaRDD<Integer> rdd = sc.parallelize(Arrays.asList(1, 2)); - List<Tuple2<String, Integer>> s = rdd.keyBy(Object::toString).collect(); - Assert.assertEquals(new Tuple2<>("1", 1), s.get(0)); - Assert.assertEquals(new Tuple2<>("2", 2), s.get(1)); - } - - @Test - public void mapOnPairRDD() { - JavaRDD<Integer> rdd1 = sc.parallelize(Arrays.asList(1, 2, 3, 4)); - JavaPairRDD<Integer, Integer> rdd2 = - rdd1.mapToPair(i -> new Tuple2<>(i, i % 2)); - JavaPairRDD<Integer, Integer> rdd3 = - rdd2.mapToPair(in -> new Tuple2<>(in._2(), in._1())); - Assert.assertEquals(Arrays.asList( - new Tuple2<>(1, 1), - new Tuple2<>(0, 2), - new Tuple2<>(1, 3), - new Tuple2<>(0, 4)), rdd3.collect()); - } - - @Test - public void collectPartitions() { - JavaRDD<Integer> rdd1 = sc.parallelize(Arrays.asList(1, 2, 3, 4, 5, 6, 7), 3); - - JavaPairRDD<Integer, Integer> rdd2 = - rdd1.mapToPair(i -> new Tuple2<>(i, i % 2)); - List<Integer>[] parts = rdd1.collectPartitions(new int[]{0}); - Assert.assertEquals(Arrays.asList(1, 2), parts[0]); - - parts = rdd1.collectPartitions(new int[]{1, 2}); - Assert.assertEquals(Arrays.asList(3, 4), parts[0]); - Assert.assertEquals(Arrays.asList(5, 6, 7), parts[1]); - - Assert.assertEquals(Arrays.asList(new Tuple2<>(1, 1), new Tuple2<>(2, 0)), - rdd2.collectPartitions(new int[]{0})[0]); - - List<Tuple2<Integer, Integer>>[] parts2 = rdd2.collectPartitions(new int[]{1, 2}); - Assert.assertEquals(Arrays.asList(new Tuple2<>(3, 1), new Tuple2<>(4, 0)), parts2[0]); - Assert.assertEquals(Arrays.asList(new Tuple2<>(5, 1), new Tuple2<>(6, 0), new Tuple2<>(7, 1)), - parts2[1]); - } - - @Test - public void collectAsMapWithIntArrayValues() { - // Regression test for SPARK-1040 - JavaRDD<Integer> rdd = sc.parallelize(Arrays.asList(1)); - JavaPairRDD<Integer, int[]> pairRDD = - rdd.mapToPair(x -> new Tuple2<>(x, new int[]{x})); - pairRDD.collect(); // Works fine - pairRDD.collectAsMap(); // Used to crash with ClassCastException - } -} diff --git a/external/java8-tests/src/test/java/test/org/apache/spark/java8/dstream/Java8APISuite.java b/external/java8-tests/src/test/java/test/org/apache/spark/java8/dstream/Java8APISuite.java deleted file mode 100644 index 338ca54ab8..0000000000 --- a/external/java8-tests/src/test/java/test/org/apache/spark/java8/dstream/Java8APISuite.java +++ /dev/null @@ -1,882 +0,0 @@ -/* - * 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 test.org.apache.spark.java8.dstream; - -import java.io.Serializable; -import java.util.*; - -import scala.Tuple2; - -import com.google.common.collect.Lists; -import com.google.common.collect.Sets; -import org.junit.Assert; -import org.junit.Test; - -import org.apache.spark.HashPartitioner; -import org.apache.spark.api.java.Optional; -import org.apache.spark.api.java.JavaPairRDD; -import org.apache.spark.api.java.JavaRDD; -import org.apache.spark.api.java.function.PairFunction; -import org.apache.spark.streaming.*; -import org.apache.spark.streaming.api.java.JavaDStream; -import org.apache.spark.streaming.api.java.JavaPairDStream; -import org.apache.spark.streaming.api.java.JavaMapWithStateDStream; - -/** - * Most of these tests replicate org.apache.spark.streaming.JavaAPISuite using java 8 - * lambda syntax. - */ -@SuppressWarnings("unchecked") -public class Java8APISuite extends LocalJavaStreamingContext implements Serializable { - - @Test - public void testMap() { - List<List<String>> inputData = Arrays.asList( - Arrays.asList("hello", "world"), - Arrays.asList("goodnight", "moon")); - - List<List<Integer>> expected = Arrays.asList( - Arrays.asList(5, 5), - Arrays.asList(9, 4)); - - JavaDStream<String> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaDStream<Integer> letterCount = stream.map(String::length); - JavaTestUtils.attachTestOutputStream(letterCount); - List<List<Integer>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - assertOrderInvariantEquals(expected, result); - } - - @Test - public void testFilter() { - List<List<String>> inputData = Arrays.asList( - Arrays.asList("giants", "dodgers"), - Arrays.asList("yankees", "red sox")); - - List<List<String>> expected = Arrays.asList( - Arrays.asList("giants"), - Arrays.asList("yankees")); - - JavaDStream<String> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaDStream<String> filtered = stream.filter(s -> s.contains("a")); - JavaTestUtils.attachTestOutputStream(filtered); - List<List<String>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - assertOrderInvariantEquals(expected, result); - } - - @Test - public void testMapPartitions() { - List<List<String>> inputData = Arrays.asList( - Arrays.asList("giants", "dodgers"), - Arrays.asList("yankees", "red sox")); - - List<List<String>> expected = Arrays.asList( - Arrays.asList("GIANTSDODGERS"), - Arrays.asList("YANKEESRED SOX")); - - JavaDStream<String> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaDStream<String> mapped = stream.mapPartitions(in -> { - String out = ""; - while (in.hasNext()) { - out = out + in.next().toUpperCase(); - } - return Lists.newArrayList(out).iterator(); - }); - JavaTestUtils.attachTestOutputStream(mapped); - List<List<String>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testReduce() { - List<List<Integer>> inputData = Arrays.asList( - Arrays.asList(1, 2, 3), - Arrays.asList(4, 5, 6), - Arrays.asList(7, 8, 9)); - - List<List<Integer>> expected = Arrays.asList( - Arrays.asList(6), - Arrays.asList(15), - Arrays.asList(24)); - - JavaDStream<Integer> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaDStream<Integer> reduced = stream.reduce((x, y) -> x + y); - JavaTestUtils.attachTestOutputStream(reduced); - List<List<Integer>> result = JavaTestUtils.runStreams(ssc, 3, 3); - - Assert.assertEquals(expected, result); - } - - @Test - public void testReduceByWindow() { - List<List<Integer>> inputData = Arrays.asList( - Arrays.asList(1, 2, 3), - Arrays.asList(4, 5, 6), - Arrays.asList(7, 8, 9)); - - List<List<Integer>> expected = Arrays.asList( - Arrays.asList(6), - Arrays.asList(21), - Arrays.asList(39), - Arrays.asList(24)); - - JavaDStream<Integer> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaDStream<Integer> reducedWindowed = stream.reduceByWindow((x, y) -> x + y, - (x, y) -> x - y, new Duration(2000), new Duration(1000)); - JavaTestUtils.attachTestOutputStream(reducedWindowed); - List<List<Integer>> result = JavaTestUtils.runStreams(ssc, 4, 4); - - Assert.assertEquals(expected, result); - } - - @Test - public void testTransform() { - List<List<Integer>> inputData = Arrays.asList( - Arrays.asList(1, 2, 3), - Arrays.asList(4, 5, 6), - Arrays.asList(7, 8, 9)); - - List<List<Integer>> expected = Arrays.asList( - Arrays.asList(3, 4, 5), - Arrays.asList(6, 7, 8), - Arrays.asList(9, 10, 11)); - - JavaDStream<Integer> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaDStream<Integer> transformed = stream.transform(in -> in.map(i -> i + 2)); - - JavaTestUtils.attachTestOutputStream(transformed); - List<List<Integer>> result = JavaTestUtils.runStreams(ssc, 3, 3); - - assertOrderInvariantEquals(expected, result); - } - - @Test - public void testVariousTransform() { - // tests whether all variations of transform can be called from Java - - List<List<Integer>> inputData = Arrays.asList(Arrays.asList(1)); - JavaDStream<Integer> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - - List<List<Tuple2<String, Integer>>> pairInputData = - Arrays.asList(Arrays.asList(new Tuple2<>("x", 1))); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream( - JavaTestUtils.attachTestInputStream(ssc, pairInputData, 1)); - - JavaDStream<Integer> transformed1 = stream.transform(in -> null); - JavaDStream<Integer> transformed2 = stream.transform((x, time) -> null); - JavaPairDStream<String, Integer> transformed3 = stream.transformToPair(x -> null); - JavaPairDStream<String, Integer> transformed4 = stream.transformToPair((x, time) -> null); - JavaDStream<Integer> pairTransformed1 = pairStream.transform(x -> null); - JavaDStream<Integer> pairTransformed2 = pairStream.transform((x, time) -> null); - JavaPairDStream<String, String> pairTransformed3 = pairStream.transformToPair(x -> null); - JavaPairDStream<String, String> pairTransformed4 = - pairStream.transformToPair((x, time) -> null); - - } - - @Test - public void testTransformWith() { - List<List<Tuple2<String, String>>> stringStringKVStream1 = Arrays.asList( - Arrays.asList( - new Tuple2<>("california", "dodgers"), - new Tuple2<>("new york", "yankees")), - Arrays.asList( - new Tuple2<>("california", "sharks"), - new Tuple2<>("new york", "rangers"))); - - List<List<Tuple2<String, String>>> stringStringKVStream2 = Arrays.asList( - Arrays.asList( - new Tuple2<>("california", "giants"), - new Tuple2<>("new york", "mets")), - Arrays.asList( - new Tuple2<>("california", "ducks"), - new Tuple2<>("new york", "islanders"))); - - - List<Set<Tuple2<String, Tuple2<String, String>>>> expected = Arrays.asList( - Sets.newHashSet( - new Tuple2<>("california", - new Tuple2<>("dodgers", "giants")), - new Tuple2<>("new york", - new Tuple2<>("yankees", "mets"))), - Sets.newHashSet( - new Tuple2<>("california", - new Tuple2<>("sharks", "ducks")), - new Tuple2<>("new york", - new Tuple2<>("rangers", "islanders")))); - - JavaDStream<Tuple2<String, String>> stream1 = JavaTestUtils.attachTestInputStream( - ssc, stringStringKVStream1, 1); - JavaPairDStream<String, String> pairStream1 = JavaPairDStream.fromJavaDStream(stream1); - - JavaDStream<Tuple2<String, String>> stream2 = JavaTestUtils.attachTestInputStream( - ssc, stringStringKVStream2, 1); - JavaPairDStream<String, String> pairStream2 = JavaPairDStream.fromJavaDStream(stream2); - - JavaPairDStream<String, Tuple2<String, String>> joined = - pairStream1.transformWithToPair(pairStream2,(x, y, z) -> x.join(y)); - - JavaTestUtils.attachTestOutputStream(joined); - List<List<Tuple2<String, Tuple2<String, String>>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - List<Set<Tuple2<String, Tuple2<String, String>>>> unorderedResult = Lists.newArrayList(); - for (List<Tuple2<String, Tuple2<String, String>>> res : result) { - unorderedResult.add(Sets.newHashSet(res)); - } - - Assert.assertEquals(expected, unorderedResult); - } - - - @Test - public void testVariousTransformWith() { - // tests whether all variations of transformWith can be called from Java - - List<List<Integer>> inputData1 = Arrays.asList(Arrays.asList(1)); - List<List<String>> inputData2 = Arrays.asList(Arrays.asList("x")); - JavaDStream<Integer> stream1 = JavaTestUtils.attachTestInputStream(ssc, inputData1, 1); - JavaDStream<String> stream2 = JavaTestUtils.attachTestInputStream(ssc, inputData2, 1); - - List<List<Tuple2<String, Integer>>> pairInputData1 = - Arrays.asList(Arrays.asList(new Tuple2<>("x", 1))); - List<List<Tuple2<Double, Character>>> pairInputData2 = - Arrays.asList(Arrays.asList(new Tuple2<>(1.0, 'x'))); - JavaPairDStream<String, Integer> pairStream1 = JavaPairDStream.fromJavaDStream( - JavaTestUtils.attachTestInputStream(ssc, pairInputData1, 1)); - JavaPairDStream<Double, Character> pairStream2 = JavaPairDStream.fromJavaDStream( - JavaTestUtils.attachTestInputStream(ssc, pairInputData2, 1)); - - JavaDStream<Double> transformed1 = stream1.transformWith(stream2, (x, y, z) -> null); - JavaDStream<Double> transformed2 = stream1.transformWith(pairStream1,(x, y, z) -> null); - - JavaPairDStream<Double, Double> transformed3 = - stream1.transformWithToPair(stream2,(x, y, z) -> null); - - JavaPairDStream<Double, Double> transformed4 = - stream1.transformWithToPair(pairStream1,(x, y, z) -> null); - - JavaDStream<Double> pairTransformed1 = pairStream1.transformWith(stream2,(x, y, z) -> null); - - JavaDStream<Double> pairTransformed2_ = - pairStream1.transformWith(pairStream1,(x, y, z) -> null); - - JavaPairDStream<Double, Double> pairTransformed3 = - pairStream1.transformWithToPair(stream2,(x, y, z) -> null); - - JavaPairDStream<Double, Double> pairTransformed4 = - pairStream1.transformWithToPair(pairStream2,(x, y, z) -> null); - } - - @Test - public void testStreamingContextTransform() { - List<List<Integer>> stream1input = Arrays.asList( - Arrays.asList(1), - Arrays.asList(2) - ); - - List<List<Integer>> stream2input = Arrays.asList( - Arrays.asList(3), - Arrays.asList(4) - ); - - List<List<Tuple2<Integer, String>>> pairStream1input = Arrays.asList( - Arrays.asList(new Tuple2<>(1, "x")), - Arrays.asList(new Tuple2<>(2, "y")) - ); - - List<List<Tuple2<Integer, Tuple2<Integer, String>>>> expected = Arrays.asList( - Arrays.asList(new Tuple2<>(1, new Tuple2<>(1, "x"))), - Arrays.asList(new Tuple2<>(2, new Tuple2<>(2, "y"))) - ); - - JavaDStream<Integer> stream1 = JavaTestUtils.attachTestInputStream(ssc, stream1input, 1); - JavaDStream<Integer> stream2 = JavaTestUtils.attachTestInputStream(ssc, stream2input, 1); - JavaPairDStream<Integer, String> pairStream1 = JavaPairDStream.fromJavaDStream( - JavaTestUtils.attachTestInputStream(ssc, pairStream1input, 1)); - - List<JavaDStream<?>> listOfDStreams1 = Arrays.<JavaDStream<?>>asList(stream1, stream2); - - // This is just to test whether this transform to JavaStream compiles - JavaDStream<Long> transformed1 = ssc.transform( - listOfDStreams1, (List<JavaRDD<?>> listOfRDDs, Time time) -> { - Assert.assertEquals(2, listOfRDDs.size()); - return null; - }); - - List<JavaDStream<?>> listOfDStreams2 = - Arrays.<JavaDStream<?>>asList(stream1, stream2, pairStream1.toJavaDStream()); - - JavaPairDStream<Integer, Tuple2<Integer, String>> transformed2 = ssc.transformToPair( - listOfDStreams2, (List<JavaRDD<?>> listOfRDDs, Time time) -> { - Assert.assertEquals(3, listOfRDDs.size()); - JavaRDD<Integer> rdd1 = (JavaRDD<Integer>) listOfRDDs.get(0); - JavaRDD<Integer> rdd2 = (JavaRDD<Integer>) listOfRDDs.get(1); - JavaRDD<Tuple2<Integer, String>> rdd3 = (JavaRDD<Tuple2<Integer, String>>) listOfRDDs.get(2); - JavaPairRDD<Integer, String> prdd3 = JavaPairRDD.fromJavaRDD(rdd3); - PairFunction<Integer, Integer, Integer> mapToTuple = - (Integer i) -> new Tuple2<>(i, i); - return rdd1.union(rdd2).mapToPair(mapToTuple).join(prdd3); - }); - JavaTestUtils.attachTestOutputStream(transformed2); - List<List<Tuple2<Integer, Tuple2<Integer, String>>>> result = - JavaTestUtils.runStreams(ssc, 2, 2); - Assert.assertEquals(expected, result); - } - - @Test - public void testFlatMap() { - List<List<String>> inputData = Arrays.asList( - Arrays.asList("go", "giants"), - Arrays.asList("boo", "dodgers"), - Arrays.asList("athletics")); - - List<List<String>> expected = Arrays.asList( - Arrays.asList("g", "o", "g", "i", "a", "n", "t", "s"), - Arrays.asList("b", "o", "o", "d", "o", "d", "g", "e", "r", "s"), - Arrays.asList("a", "t", "h", "l", "e", "t", "i", "c", "s")); - - JavaDStream<String> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaDStream<String> flatMapped = stream.flatMap( - s -> Lists.newArrayList(s.split("(?!^)")).iterator()); - JavaTestUtils.attachTestOutputStream(flatMapped); - List<List<String>> result = JavaTestUtils.runStreams(ssc, 3, 3); - - assertOrderInvariantEquals(expected, result); - } - - @Test - public void testPairFlatMap() { - List<List<String>> inputData = Arrays.asList( - Arrays.asList("giants"), - Arrays.asList("dodgers"), - Arrays.asList("athletics")); - - List<List<Tuple2<Integer, String>>> expected = Arrays.asList( - Arrays.asList( - new Tuple2<>(6, "g"), - new Tuple2<>(6, "i"), - new Tuple2<>(6, "a"), - new Tuple2<>(6, "n"), - new Tuple2<>(6, "t"), - new Tuple2<>(6, "s")), - Arrays.asList( - new Tuple2<>(7, "d"), - new Tuple2<>(7, "o"), - new Tuple2<>(7, "d"), - new Tuple2<>(7, "g"), - new Tuple2<>(7, "e"), - new Tuple2<>(7, "r"), - new Tuple2<>(7, "s")), - Arrays.asList( - new Tuple2<>(9, "a"), - new Tuple2<>(9, "t"), - new Tuple2<>(9, "h"), - new Tuple2<>(9, "l"), - new Tuple2<>(9, "e"), - new Tuple2<>(9, "t"), - new Tuple2<>(9, "i"), - new Tuple2<>(9, "c"), - new Tuple2<>(9, "s"))); - - JavaDStream<String> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaPairDStream<Integer, String> flatMapped = stream.flatMapToPair(s -> { - List<Tuple2<Integer, String>> out = Lists.newArrayList(); - for (String letter : s.split("(?!^)")) { - out.add(new Tuple2<>(s.length(), letter)); - } - return out.iterator(); - }); - - JavaTestUtils.attachTestOutputStream(flatMapped); - List<List<Tuple2<Integer, String>>> result = JavaTestUtils.runStreams(ssc, 3, 3); - - Assert.assertEquals(expected, result); - } - - /* - * Performs an order-invariant comparison of lists representing two RDD streams. This allows - * us to account for ordering variation within individual RDD's which occurs during windowing. - */ - public static <T extends Comparable<T>> void assertOrderInvariantEquals( - List<List<T>> expected, List<List<T>> actual) { - expected.forEach(list -> Collections.sort(list)); - List<List<T>> sortedActual = new ArrayList<>(); - actual.forEach(list -> { - List<T> sortedList = new ArrayList<>(list); - Collections.sort(sortedList); - sortedActual.add(sortedList); - }); - Assert.assertEquals(expected, sortedActual); - } - - @Test - public void testPairFilter() { - List<List<String>> inputData = Arrays.asList( - Arrays.asList("giants", "dodgers"), - Arrays.asList("yankees", "red sox")); - - List<List<Tuple2<String, Integer>>> expected = Arrays.asList( - Arrays.asList(new Tuple2<>("giants", 6)), - Arrays.asList(new Tuple2<>("yankees", 7))); - - JavaDStream<String> stream = JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = - stream.mapToPair(x -> new Tuple2<>(x, x.length())); - JavaPairDStream<String, Integer> filtered = pairStream.filter(x -> x._1().contains("a")); - JavaTestUtils.attachTestOutputStream(filtered); - List<List<Tuple2<String, Integer>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - List<List<Tuple2<String, String>>> stringStringKVStream = Arrays.asList( - Arrays.asList(new Tuple2<>("california", "dodgers"), - new Tuple2<>("california", "giants"), - new Tuple2<>("new york", "yankees"), - new Tuple2<>("new york", "mets")), - Arrays.asList(new Tuple2<>("california", "sharks"), - new Tuple2<>("california", "ducks"), - new Tuple2<>("new york", "rangers"), - new Tuple2<>("new york", "islanders"))); - - List<List<Tuple2<String, Integer>>> stringIntKVStream = Arrays.asList( - Arrays.asList( - new Tuple2<>("california", 1), - new Tuple2<>("california", 3), - new Tuple2<>("new york", 4), - new Tuple2<>("new york", 1)), - Arrays.asList( - new Tuple2<>("california", 5), - new Tuple2<>("california", 5), - new Tuple2<>("new york", 3), - new Tuple2<>("new york", 1))); - - @Test - public void testPairMap() { // Maps pair -> pair of different type - List<List<Tuple2<String, Integer>>> inputData = stringIntKVStream; - - List<List<Tuple2<Integer, String>>> expected = Arrays.asList( - Arrays.asList( - new Tuple2<>(1, "california"), - new Tuple2<>(3, "california"), - new Tuple2<>(4, "new york"), - new Tuple2<>(1, "new york")), - Arrays.asList( - new Tuple2<>(5, "california"), - new Tuple2<>(5, "california"), - new Tuple2<>(3, "new york"), - new Tuple2<>(1, "new york"))); - - JavaDStream<Tuple2<String, Integer>> stream = - JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - JavaPairDStream<Integer, String> reversed = pairStream.mapToPair(x -> x.swap()); - JavaTestUtils.attachTestOutputStream(reversed); - List<List<Tuple2<Integer, String>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testPairMapPartitions() { // Maps pair -> pair of different type - List<List<Tuple2<String, Integer>>> inputData = stringIntKVStream; - - List<List<Tuple2<Integer, String>>> expected = Arrays.asList( - Arrays.asList( - new Tuple2<>(1, "california"), - new Tuple2<>(3, "california"), - new Tuple2<>(4, "new york"), - new Tuple2<>(1, "new york")), - Arrays.asList( - new Tuple2<>(5, "california"), - new Tuple2<>(5, "california"), - new Tuple2<>(3, "new york"), - new Tuple2<>(1, "new york"))); - - JavaDStream<Tuple2<String, Integer>> stream = - JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - JavaPairDStream<Integer, String> reversed = pairStream.mapPartitionsToPair(in -> { - LinkedList<Tuple2<Integer, String>> out = new LinkedList<>(); - while (in.hasNext()) { - Tuple2<String, Integer> next = in.next(); - out.add(next.swap()); - } - return out.iterator(); - }); - - JavaTestUtils.attachTestOutputStream(reversed); - List<List<Tuple2<Integer, String>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testPairMap2() { // Maps pair -> single - List<List<Tuple2<String, Integer>>> inputData = stringIntKVStream; - - List<List<Integer>> expected = Arrays.asList( - Arrays.asList(1, 3, 4, 1), - Arrays.asList(5, 5, 3, 1)); - - JavaDStream<Tuple2<String, Integer>> stream = - JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - JavaDStream<Integer> reversed = pairStream.map(in -> in._2()); - JavaTestUtils.attachTestOutputStream(reversed); - List<List<Tuple2<Integer, String>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testPairToPairFlatMapWithChangingTypes() { // Maps pair -> pair - List<List<Tuple2<String, Integer>>> inputData = Arrays.asList( - Arrays.asList( - new Tuple2<>("hi", 1), - new Tuple2<>("ho", 2)), - Arrays.asList( - new Tuple2<>("hi", 1), - new Tuple2<>("ho", 2))); - - List<List<Tuple2<Integer, String>>> expected = Arrays.asList( - Arrays.asList( - new Tuple2<>(1, "h"), - new Tuple2<>(1, "i"), - new Tuple2<>(2, "h"), - new Tuple2<>(2, "o")), - Arrays.asList( - new Tuple2<>(1, "h"), - new Tuple2<>(1, "i"), - new Tuple2<>(2, "h"), - new Tuple2<>(2, "o"))); - - JavaDStream<Tuple2<String, Integer>> stream = - JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - JavaPairDStream<Integer, String> flatMapped = pairStream.flatMapToPair(in -> { - List<Tuple2<Integer, String>> out = new LinkedList<>(); - for (Character s : in._1().toCharArray()) { - out.add(new Tuple2<>(in._2(), s.toString())); - } - return out.iterator(); - }); - - JavaTestUtils.attachTestOutputStream(flatMapped); - List<List<Tuple2<String, Integer>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testPairReduceByKey() { - List<List<Tuple2<String, Integer>>> inputData = stringIntKVStream; - - List<List<Tuple2<String, Integer>>> expected = Arrays.asList( - Arrays.asList( - new Tuple2<>("california", 4), - new Tuple2<>("new york", 5)), - Arrays.asList( - new Tuple2<>("california", 10), - new Tuple2<>("new york", 4))); - - JavaDStream<Tuple2<String, Integer>> stream = JavaTestUtils.attachTestInputStream( - ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - - JavaPairDStream<String, Integer> reduced = pairStream.reduceByKey((x, y) -> x + y); - - JavaTestUtils.attachTestOutputStream(reduced); - List<List<Tuple2<String, Integer>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testCombineByKey() { - List<List<Tuple2<String, Integer>>> inputData = stringIntKVStream; - - List<List<Tuple2<String, Integer>>> expected = Arrays.asList( - Arrays.asList( - new Tuple2<>("california", 4), - new Tuple2<>("new york", 5)), - Arrays.asList( - new Tuple2<>("california", 10), - new Tuple2<>("new york", 4))); - - JavaDStream<Tuple2<String, Integer>> stream = JavaTestUtils.attachTestInputStream( - ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - - JavaPairDStream<String, Integer> combined = pairStream.<Integer>combineByKey(i -> i, - (x, y) -> x + y, (x, y) -> x + y, new HashPartitioner(2)); - - JavaTestUtils.attachTestOutputStream(combined); - List<List<Tuple2<String, Integer>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testReduceByKeyAndWindow() { - List<List<Tuple2<String, Integer>>> inputData = stringIntKVStream; - - List<List<Tuple2<String, Integer>>> expected = Arrays.asList( - Arrays.asList(new Tuple2<>("california", 4), - new Tuple2<>("new york", 5)), - Arrays.asList(new Tuple2<>("california", 14), - new Tuple2<>("new york", 9)), - Arrays.asList(new Tuple2<>("california", 10), - new Tuple2<>("new york", 4))); - - JavaDStream<Tuple2<String, Integer>> stream = - JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - - JavaPairDStream<String, Integer> reduceWindowed = - pairStream.reduceByKeyAndWindow((x, y) -> x + y, new Duration(2000), new Duration(1000)); - JavaTestUtils.attachTestOutputStream(reduceWindowed); - List<List<Tuple2<String, Integer>>> result = JavaTestUtils.runStreams(ssc, 3, 3); - - Assert.assertEquals(expected, result); - } - - @Test - public void testUpdateStateByKey() { - List<List<Tuple2<String, Integer>>> inputData = stringIntKVStream; - - List<List<Tuple2<String, Integer>>> expected = Arrays.asList( - Arrays.asList(new Tuple2<>("california", 4), - new Tuple2<>("new york", 5)), - Arrays.asList(new Tuple2<>("california", 14), - new Tuple2<>("new york", 9)), - Arrays.asList(new Tuple2<>("california", 14), - new Tuple2<>("new york", 9))); - - JavaDStream<Tuple2<String, Integer>> stream = - JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - - JavaPairDStream<String, Integer> updated = pairStream.updateStateByKey((values, state) -> { - int out = 0; - if (state.isPresent()) { - out = out + state.get(); - } - for (Integer v : values) { - out = out + v; - } - return Optional.of(out); - }); - - JavaTestUtils.attachTestOutputStream(updated); - List<List<Tuple2<String, Integer>>> result = JavaTestUtils.runStreams(ssc, 3, 3); - - Assert.assertEquals(expected, result); - } - - @Test - public void testReduceByKeyAndWindowWithInverse() { - List<List<Tuple2<String, Integer>>> inputData = stringIntKVStream; - - List<List<Tuple2<String, Integer>>> expected = Arrays.asList( - Arrays.asList(new Tuple2<>("california", 4), - new Tuple2<>("new york", 5)), - Arrays.asList(new Tuple2<>("california", 14), - new Tuple2<>("new york", 9)), - Arrays.asList(new Tuple2<>("california", 10), - new Tuple2<>("new york", 4))); - - JavaDStream<Tuple2<String, Integer>> stream = - JavaTestUtils.attachTestInputStream(ssc, inputData, 1); - JavaPairDStream<String, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - - JavaPairDStream<String, Integer> reduceWindowed = - pairStream.reduceByKeyAndWindow((x, y) -> x + y, (x, y) -> x - y, new Duration(2000), - new Duration(1000)); - JavaTestUtils.attachTestOutputStream(reduceWindowed); - List<List<Tuple2<String, Integer>>> result = JavaTestUtils.runStreams(ssc, 3, 3); - - Assert.assertEquals(expected, result); - } - - @Test - public void testPairTransform() { - List<List<Tuple2<Integer, Integer>>> inputData = Arrays.asList( - Arrays.asList( - new Tuple2<>(3, 5), - new Tuple2<>(1, 5), - new Tuple2<>(4, 5), - new Tuple2<>(2, 5)), - Arrays.asList( - new Tuple2<>(2, 5), - new Tuple2<>(3, 5), - new Tuple2<>(4, 5), - new Tuple2<>(1, 5))); - - List<List<Tuple2<Integer, Integer>>> expected = Arrays.asList( - Arrays.asList( - new Tuple2<>(1, 5), - new Tuple2<>(2, 5), - new Tuple2<>(3, 5), - new Tuple2<>(4, 5)), - Arrays.asList( - new Tuple2<>(1, 5), - new Tuple2<>(2, 5), - new Tuple2<>(3, 5), - new Tuple2<>(4, 5))); - - JavaDStream<Tuple2<Integer, Integer>> stream = JavaTestUtils.attachTestInputStream( - ssc, inputData, 1); - JavaPairDStream<Integer, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - - JavaPairDStream<Integer, Integer> sorted = pairStream.transformToPair(in -> in.sortByKey()); - - JavaTestUtils.attachTestOutputStream(sorted); - List<List<Tuple2<String, String>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testPairToNormalRDDTransform() { - List<List<Tuple2<Integer, Integer>>> inputData = Arrays.asList( - Arrays.asList( - new Tuple2<>(3, 5), - new Tuple2<>(1, 5), - new Tuple2<>(4, 5), - new Tuple2<>(2, 5)), - Arrays.asList( - new Tuple2<>(2, 5), - new Tuple2<>(3, 5), - new Tuple2<>(4, 5), - new Tuple2<>(1, 5))); - - List<List<Integer>> expected = Arrays.asList( - Arrays.asList(3, 1, 4, 2), - Arrays.asList(2, 3, 4, 1)); - - JavaDStream<Tuple2<Integer, Integer>> stream = JavaTestUtils.attachTestInputStream( - ssc, inputData, 1); - JavaPairDStream<Integer, Integer> pairStream = JavaPairDStream.fromJavaDStream(stream); - JavaDStream<Integer> firstParts = pairStream.transform(in -> in.map(x -> x._1())); - JavaTestUtils.attachTestOutputStream(firstParts); - List<List<Integer>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testMapValues() { - List<List<Tuple2<String, String>>> inputData = stringStringKVStream; - - List<List<Tuple2<String, String>>> expected = Arrays.asList( - Arrays.asList(new Tuple2<>("california", "DODGERS"), - new Tuple2<>("california", "GIANTS"), - new Tuple2<>("new york", "YANKEES"), - new Tuple2<>("new york", "METS")), - Arrays.asList(new Tuple2<>("california", "SHARKS"), - new Tuple2<>("california", "DUCKS"), - new Tuple2<>("new york", "RANGERS"), - new Tuple2<>("new york", "ISLANDERS"))); - - JavaDStream<Tuple2<String, String>> stream = JavaTestUtils.attachTestInputStream( - ssc, inputData, 1); - JavaPairDStream<String, String> pairStream = JavaPairDStream.fromJavaDStream(stream); - - JavaPairDStream<String, String> mapped = pairStream.mapValues(String::toUpperCase); - JavaTestUtils.attachTestOutputStream(mapped); - List<List<Tuple2<String, String>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - - Assert.assertEquals(expected, result); - } - - @Test - public void testFlatMapValues() { - List<List<Tuple2<String, String>>> inputData = stringStringKVStream; - - List<List<Tuple2<String, String>>> expected = Arrays.asList( - Arrays.asList(new Tuple2<>("california", "dodgers1"), - new Tuple2<>("california", "dodgers2"), - new Tuple2<>("california", "giants1"), - new Tuple2<>("california", "giants2"), - new Tuple2<>("new york", "yankees1"), - new Tuple2<>("new york", "yankees2"), - new Tuple2<>("new york", "mets1"), - new Tuple2<>("new york", "mets2")), - Arrays.asList(new Tuple2<>("california", "sharks1"), - new Tuple2<>("california", "sharks2"), - new Tuple2<>("california", "ducks1"), - new Tuple2<>("california", "ducks2"), - new Tuple2<>("new york", "rangers1"), - new Tuple2<>("new york", "rangers2"), - new Tuple2<>("new york", "islanders1"), - new Tuple2<>("new york", "islanders2"))); - - JavaDStream<Tuple2<String, String>> stream = JavaTestUtils.attachTestInputStream( - ssc, inputData, 1); - JavaPairDStream<String, String> pairStream = JavaPairDStream.fromJavaDStream(stream); - - JavaPairDStream<String, String> flatMapped = - pairStream.flatMapValues(in -> Arrays.asList(in + "1", in + "2")); - JavaTestUtils.attachTestOutputStream(flatMapped); - List<List<Tuple2<String, String>>> result = JavaTestUtils.runStreams(ssc, 2, 2); - Assert.assertEquals(expected, result); - } - - /** - * This test is only for testing the APIs. It's not necessary to run it. - */ - public void testMapWithStateAPI() { - JavaPairRDD<String, Boolean> initialRDD = null; - JavaPairDStream<String, Integer> wordsDstream = null; - - JavaMapWithStateDStream<String, Integer, Boolean, Double> stateDstream = - wordsDstream.mapWithState( - StateSpec.<String, Integer, Boolean, Double>function((time, key, value, state) -> { - // Use all State's methods here - state.exists(); - state.get(); - state.isTimingOut(); - state.remove(); - state.update(true); - return Optional.of(2.0); - }).initialState(initialRDD) - .numPartitions(10) - .partitioner(new HashPartitioner(10)) - .timeout(Durations.seconds(10))); - - JavaPairDStream<String, Boolean> emittedRecords = stateDstream.stateSnapshots(); - - JavaMapWithStateDStream<String, Integer, Boolean, Double> stateDstream2 = - wordsDstream.mapWithState( - StateSpec.<String, Integer, Boolean, Double>function((key, value, state) -> { - state.exists(); - state.get(); - state.isTimingOut(); - state.remove(); - state.update(true); - return 2.0; - }).initialState(initialRDD) - .numPartitions(10) - .partitioner(new HashPartitioner(10)) - .timeout(Durations.seconds(10))); - - JavaPairDStream<String, Boolean> mappedDStream = stateDstream2.stateSnapshots(); - } -} diff --git a/external/java8-tests/src/test/java/test/org/apache/spark/java8/sql/Java8DatasetAggregatorSuite.java b/external/java8-tests/src/test/java/test/org/apache/spark/java8/sql/Java8DatasetAggregatorSuite.java deleted file mode 100644 index 10d25fa445..0000000000 --- a/external/java8-tests/src/test/java/test/org/apache/spark/java8/sql/Java8DatasetAggregatorSuite.java +++ /dev/null @@ -1,62 +0,0 @@ -/* - * 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 test.org.apache.spark.java8.sql; - -import java.util.Arrays; - -import org.junit.Assert; -import org.junit.Test; -import scala.Tuple2; - -import org.apache.spark.sql.Dataset; -import org.apache.spark.sql.KeyValueGroupedDataset; -import org.apache.spark.sql.expressions.javalang.typed; -import test.org.apache.spark.sql.JavaDatasetAggregatorSuiteBase; - -/** - * Suite that replicates tests in JavaDatasetAggregatorSuite using lambda syntax. - */ -public class Java8DatasetAggregatorSuite extends JavaDatasetAggregatorSuiteBase { - @Test - public void testTypedAggregationAverage() { - KeyValueGroupedDataset<String, Tuple2<String, Integer>> grouped = generateGroupedDataset(); - Dataset<Tuple2<String, Double>> agged = grouped.agg(typed.avg(v -> (double)(v._2() * 2))); - Assert.assertEquals(Arrays.asList(tuple2("a", 3.0), tuple2("b", 6.0)), agged.collectAsList()); - } - - @Test - public void testTypedAggregationCount() { - KeyValueGroupedDataset<String, Tuple2<String, Integer>> grouped = generateGroupedDataset(); - Dataset<Tuple2<String, Long>> agged = grouped.agg(typed.count(v -> v)); - Assert.assertEquals(Arrays.asList(tuple2("a", 2L), tuple2("b", 1L)), agged.collectAsList()); - } - - @Test - public void testTypedAggregationSumDouble() { - KeyValueGroupedDataset<String, Tuple2<String, Integer>> grouped = generateGroupedDataset(); - Dataset<Tuple2<String, Double>> agged = grouped.agg(typed.sum(v -> (double)v._2())); - Assert.assertEquals(Arrays.asList(tuple2("a", 3.0), tuple2("b", 3.0)), agged.collectAsList()); - } - - @Test - public void testTypedAggregationSumLong() { - KeyValueGroupedDataset<String, Tuple2<String, Integer>> grouped = generateGroupedDataset(); - Dataset<Tuple2<String, Long>> agged = grouped.agg(typed.sumLong(v -> (long)v._2())); - Assert.assertEquals(Arrays.asList(tuple2("a", 3L), tuple2("b", 3L)), agged.collectAsList()); - } -} |