private void basicReject(RichIterable<Integer> iterable) {
Collection<Integer> actual1 = ParallelIterate.reject(iterable, Predicates.greaterThan(10000));
Collection<Integer> actual2 =
ParallelIterate.reject(
iterable,
Predicates.greaterThan(10000),
HashBag.<Integer>newBag(),
3,
this.executor,
true);
Collection<Integer> actual3 =
ParallelIterate.reject(iterable, Predicates.greaterThan(10000), true);
RichIterable<Integer> expected = iterable.reject(Predicates.greaterThan(10000));
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual1.getClass().getSimpleName(),
expected,
actual1);
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual2.getClass().getSimpleName(),
expected.toBag(),
actual2);
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual3.getClass().getSimpleName(),
expected.toBag(),
HashBag.newBag(actual3));
}
@Test
public void testForEachUsingSet() {
// Tests the default batch size calculations
IntegerSum sum = new IntegerSum(0);
MutableSet<Integer> set = Interval.toSet(1, 10000);
ParallelIterate.forEach(set, new SumProcedure(sum), new SumCombiner(sum));
Assert.assertEquals(50005000, sum.getSum());
// Testing batch size 1
IntegerSum sum2 = new IntegerSum(0);
UnifiedSet<Integer> set2 = UnifiedSet.newSet(Interval.oneTo(100));
ParallelIterate.forEach(
set2, new SumProcedure(sum2), new SumCombiner(sum2), 1, set2.getBatchCount(set2.size()));
Assert.assertEquals(5050, sum2.getSum());
// Testing an uneven batch size
IntegerSum sum3 = new IntegerSum(0);
UnifiedSet<Integer> set3 = UnifiedSet.newSet(Interval.oneTo(100));
ParallelIterate.forEach(
set3, new SumProcedure(sum3), new SumCombiner(sum3), 1, set3.getBatchCount(13));
Assert.assertEquals(5050, sum3.getSum());
// Testing divideByZero exception by passing 1 as batchSize
IntegerSum sum4 = new IntegerSum(0);
UnifiedSet<Integer> set4 = UnifiedSet.newSet(Interval.oneTo(100));
ParallelIterate.forEach(set4, new SumProcedure(sum4), new SumCombiner(sum4), 1);
Assert.assertEquals(5050, sum4.getSum());
}
private void basicCount(RichIterable<Integer> listIterable) {
int actual1 = ParallelIterate.count(listIterable, Predicates.greaterThan(10000));
int actual2 =
ParallelIterate.count(listIterable, Predicates.greaterThan(10000), 11, this.executor);
Assert.assertEquals(10000, actual1);
Assert.assertEquals(10000, actual2);
}
@Test
public void testForEachUsingMap() {
// Test the default batch size calculations
IntegerSum sum1 = new IntegerSum(0);
MutableMap<String, Integer> map1 =
Interval.fromTo(1, 10000).toMap(String::valueOf, Functions.getIntegerPassThru());
ParallelIterate.forEach(map1, new SumProcedure(sum1), new SumCombiner(sum1));
Assert.assertEquals(50005000, sum1.getSum());
// Testing batch size 1
IntegerSum sum2 = new IntegerSum(0);
UnifiedMap<String, Integer> map2 =
(UnifiedMap<String, Integer>)
Interval.fromTo(1, 100).toMap(String::valueOf, Functions.getIntegerPassThru());
ParallelIterate.forEach(
map2, new SumProcedure(sum2), new SumCombiner(sum2), 1, map2.getBatchCount(map2.size()));
Assert.assertEquals(5050, sum2.getSum());
// Testing an uneven batch size
IntegerSum sum3 = new IntegerSum(0);
UnifiedMap<String, Integer> set3 =
(UnifiedMap<String, Integer>)
Interval.fromTo(1, 100).toMap(String::valueOf, Functions.getIntegerPassThru());
ParallelIterate.forEach(
set3, new SumProcedure(sum3), new SumCombiner(sum3), 1, set3.getBatchCount(13));
Assert.assertEquals(5050, sum3.getSum());
}
@Test
public void aggregateInPlaceBy() {
Procedure2<AtomicInteger, Integer> countAggregator =
(aggregate, value) -> aggregate.incrementAndGet();
List<Integer> list = Interval.oneTo(20000);
MutableMap<String, AtomicInteger> aggregation =
ParallelIterate.aggregateInPlaceBy(list, EVEN_OR_ODD, ATOMIC_INTEGER_NEW, countAggregator);
Assert.assertEquals(10000, aggregation.get("Even").intValue());
Assert.assertEquals(10000, aggregation.get("Odd").intValue());
ParallelIterate.aggregateInPlaceBy(
list, EVEN_OR_ODD, ATOMIC_INTEGER_NEW, countAggregator, aggregation);
Assert.assertEquals(20000, aggregation.get("Even").intValue());
Assert.assertEquals(20000, aggregation.get("Odd").intValue());
}
private void executeParallelIterate(int level, ExecutorService executorService) {
MutableList<Integer> items = Lists.mutable.of();
for (int i = 0; i < 20000; i++) {
items.add(i % 1000 == 0 ? level : 0);
}
ParallelIterate.forEach(items, new RecursiveProcedure(), executorService);
}
private class RecursiveProcedure implements Procedure<Integer> {
private static final long serialVersionUID = 1L;
private final ExecutorService executorService =
ParallelIterate.newPooledExecutor("ParallelIterateTest", false);
@Override
public void value(Integer level) {
if (level > 0) {
ParallelIterateAcceptanceTest.this.threadNames.add(Thread.currentThread().getName());
this.executeParallelIterate(level - 1, this.executorService);
} else {
this.simulateWork();
}
}
private void simulateWork() {
synchronized (ParallelIterateAcceptanceTest.this) {
ParallelIterateAcceptanceTest.this.count++;
}
}
private void executeParallelIterate(int level, ExecutorService executorService) {
MutableList<Integer> items = Lists.mutable.of();
for (int i = 0; i < 20000; i++) {
items.add(i % 1000 == 0 ? level : 0);
}
ParallelIterate.forEach(items, new RecursiveProcedure(), executorService);
}
}
@Test
public void testForEachWithIndexToArrayUsingFixedArrayList() {
Integer[] array = new Integer[10];
List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
Assert.assertTrue(ArrayIterate.allSatisfy(array, Predicates.isNull()));
ParallelIterate.forEachWithIndex(list, (each, index) -> array[index] = each, 1, 2);
Assert.assertArrayEquals(array, list.toArray(new Integer[list.size()]));
}
@Test
public void testForEachWithIndexToArrayUsingArrayList() {
Integer[] array = new Integer[200];
List<Integer> list = new ArrayList<>(Interval.oneTo(200));
Assert.assertTrue(ArrayIterate.allSatisfy(array, Predicates.isNull()));
ParallelIterate.forEachWithIndex(list, (each, index) -> array[index] = each, 10, 10);
Assert.assertArrayEquals(array, list.toArray(new Integer[] {}));
}
@Test
public void selectSortedSet() {
RichIterable<Integer> iterable = Interval.oneTo(20000).toSortedSet();
Collection<Integer> actual1 = ParallelIterate.select(iterable, Predicates.greaterThan(10000));
Collection<Integer> actual2 =
ParallelIterate.select(iterable, Predicates.greaterThan(10000), true);
RichIterable<Integer> expected = iterable.select(Predicates.greaterThan(10000));
Assert.assertSame(expected.getClass(), actual1.getClass());
Assert.assertSame(expected.getClass(), actual2.getClass());
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual1.getClass().getSimpleName(),
expected,
actual1);
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual2.getClass().getSimpleName(),
expected,
actual2);
}
@Test
public void testForEachWithIndexException() {
Verify.assertThrows(
RuntimeException.class,
() ->
ParallelIterate.forEachWithIndex(
ParallelIterateAcceptanceTest.createIntegerList(5),
new PassThruObjectIntProcedureFactory<>(EXCEPTION_OBJECT_INT_PROCEDURE),
new PassThruCombiner<>(),
1,
5));
}
private void basicCollectIf(RichIterable<Integer> collection) {
Predicate<Integer> greaterThan = Predicates.greaterThan(10000);
Collection<String> actual1 =
ParallelIterate.collectIf(collection, greaterThan, String::valueOf);
Collection<String> actual2 =
ParallelIterate.collectIf(
collection,
greaterThan,
String::valueOf,
HashBag.<String>newBag(),
3,
this.executor,
true);
Collection<String> actual3 =
ParallelIterate.collectIf(
collection,
greaterThan,
String::valueOf,
HashBag.<String>newBag(),
3,
this.executor,
true);
Bag<String> expected = collection.collectIf(greaterThan, String::valueOf).toBag();
Verify.assertSize(10000, actual1);
Verify.assertNotContains(String.valueOf(9000), actual1);
Verify.assertNotContains(String.valueOf(21000), actual1);
Verify.assertContains(String.valueOf(15976), actual1);
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual1.getClass().getSimpleName(),
expected,
HashBag.newBag(actual1));
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual2.getClass().getSimpleName(),
expected,
actual2);
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual3.getClass().getSimpleName(),
expected,
actual3);
}
private void basicCollect(RichIterable<Integer> iterable) {
Collection<String> actual1 = ParallelIterate.collect(iterable, String::valueOf);
Collection<String> actual2 =
ParallelIterate.collect(
iterable, String::valueOf, HashBag.<String>newBag(), 3, this.executor, false);
Collection<String> actual3 = ParallelIterate.collect(iterable, String::valueOf, true);
RichIterable<String> expected = iterable.collect(String::valueOf);
Verify.assertSize(20000, actual1);
Verify.assertContains(String.valueOf(20000), actual1);
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual1.getClass().getSimpleName(),
expected,
actual1);
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual2.getClass().getSimpleName(),
expected.toBag(),
actual2);
Assert.assertEquals(
expected.getClass().getSimpleName() + '/' + actual3.getClass().getSimpleName(),
expected.toBag(),
HashBag.newBag(actual3));
}
private void basicFlatCollect(RichIterable<Integer> iterable) {
Collection<String> actual1 = ParallelIterate.flatCollect(iterable, INT_TO_TWO_STRINGS);
Collection<String> actual2 =
ParallelIterate.flatCollect(
iterable, INT_TO_TWO_STRINGS, HashBag.<String>newBag(), 3, this.executor, false);
Collection<String> actual3 = ParallelIterate.flatCollect(iterable, INT_TO_TWO_STRINGS, true);
RichIterable<String> expected1 = iterable.flatCollect(INT_TO_TWO_STRINGS);
RichIterable<String> expected2 =
iterable.flatCollect(INT_TO_TWO_STRINGS, HashBag.<String>newBag());
Verify.assertContains(String.valueOf(20000), actual1);
Assert.assertEquals(
expected1.getClass().getSimpleName() + '/' + actual1.getClass().getSimpleName(),
expected1,
actual1);
Assert.assertEquals(
expected2.getClass().getSimpleName() + '/' + actual2.getClass().getSimpleName(),
expected2,
actual2);
Assert.assertEquals(
expected1.getClass().getSimpleName() + '/' + actual3.getClass().getSimpleName(),
expected1.toBag(),
HashBag.newBag(actual3));
}
@Test
public void aggregateInPlaceByWithBatchSize() {
MutableList<Integer> list =
LazyIterate.adapt(Collections.nCopies(1000, 1))
.concatenate(Collections.nCopies(2000, 2))
.concatenate(Collections.nCopies(3000, 3))
.toList()
.shuffleThis();
MapIterable<String, AtomicInteger> aggregation =
ParallelIterate.aggregateInPlaceBy(
list, String::valueOf, ATOMIC_INTEGER_NEW, AtomicInteger::addAndGet, 100);
Assert.assertEquals(1000, aggregation.get("1").intValue());
Assert.assertEquals(4000, aggregation.get("2").intValue());
Assert.assertEquals(9000, aggregation.get("3").intValue());
}
@Test
public void testForEachImmutableList() {
IntegerSum sum1 = new IntegerSum(0);
ImmutableList<Integer> list1 =
Lists.immutable.ofAll(ParallelIterateAcceptanceTest.createIntegerList(16));
ParallelIterate.forEach(
list1, new SumProcedure(sum1), new SumCombiner(sum1), 1, list1.size() / 2);
Assert.assertEquals(16, sum1.getSum());
IntegerSum sum2 = new IntegerSum(0);
ImmutableList<Integer> list2 =
Lists.immutable.ofAll(ParallelIterateAcceptanceTest.createIntegerList(7));
ParallelIterate.forEach(list2, new SumProcedure(sum2), new SumCombiner(sum2));
Assert.assertEquals(7, sum2.getSum());
IntegerSum sum3 = new IntegerSum(0);
ImmutableList<Integer> list3 =
Lists.immutable.ofAll(ParallelIterateAcceptanceTest.createIntegerList(15));
ParallelIterate.forEach(
list3, new SumProcedure(sum3), new SumCombiner(sum3), 1, list3.size() / 2);
Assert.assertEquals(15, sum3.getSum());
IntegerSum sum4 = new IntegerSum(0);
ImmutableList<Integer> list4 =
Lists.immutable.ofAll(ParallelIterateAcceptanceTest.createIntegerList(35));
ParallelIterate.forEach(list4, new SumProcedure(sum4), new SumCombiner(sum4));
Assert.assertEquals(35, sum4.getSum());
IntegerSum sum5 = new IntegerSum(0);
ImmutableList<Integer> list5 = FastList.newList(list4).toImmutable();
ParallelIterate.forEach(list5, new SumProcedure(sum5), new SumCombiner(sum5));
Assert.assertEquals(35, sum5.getSum());
IntegerSum sum6 = new IntegerSum(0);
ImmutableList<Integer> list6 =
Lists.immutable.ofAll(ParallelIterateAcceptanceTest.createIntegerList(40));
ParallelIterate.forEach(
list6, new SumProcedure(sum6), new SumCombiner(sum6), 1, list6.size() / 2);
Assert.assertEquals(40, sum6.getSum());
IntegerSum sum7 = new IntegerSum(0);
ImmutableList<Integer> list7 = FastList.newList(list6).toImmutable();
ParallelIterate.forEach(
list7, new SumProcedure(sum7), new SumCombiner(sum7), 1, list6.size() / 2);
Assert.assertEquals(40, sum7.getSum());
}
@Test
public void groupBy() {
FastList<Integer> iterable =
FastList.newWithNValues(
10000000,
new Function0<Integer>() {
private int current;
public Integer value() {
if (this.current < 4) {
return Integer.valueOf(this.current++);
}
this.current = 0;
return Integer.valueOf(4);
}
});
iterable.shuffleThis();
Multimap<String, Integer> expected = iterable.toBag().groupBy(String::valueOf);
Multimap<String, Integer> expectedAsSet = iterable.toSet().groupBy(String::valueOf);
Multimap<String, Integer> result1 =
ParallelIterate.groupBy(iterable.toList(), String::valueOf, 100);
Assert.assertEquals(expected, HashBagMultimap.newMultimap(result1));
Multimap<String, Integer> result2 = ParallelIterate.groupBy(iterable.toList(), String::valueOf);
Assert.assertEquals(expected, HashBagMultimap.newMultimap(result2));
Multimap<String, Integer> result3 =
ParallelIterate.groupBy(
iterable.toSet(),
String::valueOf,
SynchronizedPutUnifiedSetMultimap.<String, Integer>newMultimap(),
100);
Assert.assertEquals(expectedAsSet, result3);
Multimap<String, Integer> result4 =
ParallelIterate.groupBy(
iterable.toSet(),
String::valueOf,
SynchronizedPutUnifiedSetMultimap.<String, Integer>newMultimap());
Assert.assertEquals(expectedAsSet, result4);
Multimap<String, Integer> result5 =
ParallelIterate.groupBy(
iterable.toSortedSet(),
String::valueOf,
SynchronizedPutUnifiedSetMultimap.<String, Integer>newMultimap(),
100);
Assert.assertEquals(expectedAsSet, result5);
Multimap<String, Integer> result6 =
ParallelIterate.groupBy(
iterable.toSortedSet(),
String::valueOf,
SynchronizedPutUnifiedSetMultimap.<String, Integer>newMultimap());
Assert.assertEquals(expectedAsSet, result6);
Multimap<String, Integer> result7 =
ParallelIterate.groupBy(
iterable.toBag(),
String::valueOf,
SynchronizedPutHashBagMultimap.<String, Integer>newMultimap(),
100);
Assert.assertEquals(expected, result7);
Multimap<String, Integer> result8 =
ParallelIterate.groupBy(
iterable.toBag(),
String::valueOf,
SynchronizedPutHashBagMultimap.<String, Integer>newMultimap());
Assert.assertEquals(expected, result8);
Multimap<String, Integer> result9 =
ParallelIterate.groupBy(iterable.toList().toImmutable(), String::valueOf);
Assert.assertEquals(expected, HashBagMultimap.newMultimap(result9));
Multimap<String, Integer> result10 =
ParallelIterate.groupBy(iterable.toSortedList(), String::valueOf, 100);
Assert.assertEquals(expected, HashBagMultimap.newMultimap(result10));
Multimap<String, Integer> result11 =
ParallelIterate.groupBy(iterable.toSortedList(), String::valueOf);
Assert.assertEquals(expected, HashBagMultimap.newMultimap(result11));
Multimap<String, Integer> result12 =
ParallelIterate.groupBy(
iterable,
String::valueOf,
MultiReaderFastListMultimap.<String, Integer>newMultimap(),
100);
Assert.assertEquals(expected, HashBagMultimap.newMultimap(result12));
Multimap<String, Integer> result13 =
ParallelIterate.groupBy(
iterable, String::valueOf, MultiReaderFastListMultimap.<String, Integer>newMultimap());
Assert.assertEquals(expected, HashBagMultimap.newMultimap(result13));
Multimap<String, Integer> result14 =
ParallelIterate.groupBy(
iterable,
String::valueOf,
MultiReaderHashBagMultimap.<String, Integer>newMultimap(),
100);
Assert.assertEquals(expected, result14);
Multimap<String, Integer> result15 =
ParallelIterate.groupBy(
iterable, String::valueOf, MultiReaderHashBagMultimap.<String, Integer>newMultimap());
Assert.assertEquals(expected, result15);
Multimap<String, Integer> result16 =
ParallelIterate.groupBy(
iterable,
String::valueOf,
MultiReaderUnifiedSetMultimap.<String, Integer>newMultimap(),
100);
Assert.assertEquals(expectedAsSet, result16);
Multimap<String, Integer> result17 =
ParallelIterate.groupBy(
iterable,
String::valueOf,
MultiReaderUnifiedSetMultimap.<String, Integer>newMultimap());
Assert.assertEquals(expectedAsSet, result17);
}
