Java Code Examples for java.util.stream.IntStream#concat()

The following examples show how to use java.util.stream.IntStream#concat() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: MassiveDataGenerator.java From rapidminer-studio with GNU Affero General Public License v3.0

6 votes

@Override
public MetaData getGeneratedMetaData() throws OperatorException {
	ExampleSetMetaData emd = new ExampleSetMetaData();
	emd.addAttribute(new AttributeMetaData("label", Ontology.NOMINAL, Attributes.LABEL_NAME));
	emd.setNumberOfExamples(getParameterAsInt(PARAMETER_NUMBER_EXAMPLES));
	int desiredNumberOfAttributes = getParameterAsInt(PARAMETER_NUMBER_ATTRIBUTES);
	double mean = getParameterAsDouble(PARAMETER_SPARSE_FRACTION);
	IntStream attributeIndices;
	if (desiredNumberOfAttributes <= MAX_METADATA_ATTRIBUTES) {
		// all attributes
		attributeIndices = IntStream.range(1, desiredNumberOfAttributes);
	} else {
		// first ten and last ten
		attributeIndices = IntStream.concat(IntStream.rangeClosed(1, MAX_METADATA_ATTRIBUTES/2),
				IntStream.rangeClosed(desiredNumberOfAttributes - MAX_METADATA_ATTRIBUTES/2 + 1, desiredNumberOfAttributes));
	}
	attributeIndices.mapToObj(i -> new AttributeMetaData("att" + i, null, Ontology.REAL, new Range(0, 1)))
			.peek(amd -> amd.setMean(new MDReal(mean))).forEach(emd::addAttribute);
	return emd;
}

Example 2

Source File: ConcatTest.java From openjdk-8 with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 3

Source File: Tweet.java From TweetwallFX with MIT License

5 votes

public String get() {
    if (entriesToRemove.isEmpty()) {
        return tweet.getText();
    }

    IntStream filteredIndexes = IntStream.empty();
    for (TweetEntry tweetEntry : entriesToRemove) {
        final IntStream nextFilter;

        if (tweetEntry.getStart() == tweetEntry.getEnd()) {
            nextFilter = IntStream.of(tweetEntry.getStart());
        } else {
            nextFilter = IntStream.range(tweetEntry.getStart(), tweetEntry.getEnd());
        }

        filteredIndexes = IntStream.concat(filteredIndexes, nextFilter);
    }

    final Set<Integer> indexesToFilterOut = filteredIndexes.boxed().collect(toCollection(TreeSet::new));
    final int[] chars = tweet.getText().chars().toArray();
    final int[] filteredChars = IntStream.range(0, chars.length)
            .filter(i -> !indexesToFilterOut.contains(i))
            .map(i -> chars[i])
            .toArray();

    return new String(filteredChars, 0, filteredChars.length)
            .replaceAll("  *", " ")
            .trim();
}

Example 4

Source File: ConcatTest.java From jdk8u-jdk with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 5

Source File: ConcatTest.java From jdk8u-dev-jdk with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 6

Source File: ConcatTest.java From jdk8u_jdk with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 7

Source File: ConcatTest.java From dragonwell8_jdk with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 8

Source File: ConcatTest.java From openjdk-8-source with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 9

Source File: ConcatTest.java From hottub with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 10

Source File: ConcatTest.java From jdk8u-jdk with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 11

Source File: ConcatTest.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 12

Source File: ConcatTest.java From openjdk-jdk8u-backup with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 13

Source File: ConcatTest.java From openjdk-jdk8u with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 14

Source File: Utils.java From teku with Apache License 2.0

5 votes

private static List<ByteBuf> shiftedSlices(int shift, Bytes... chunks) {
  AtomicInteger sum = new AtomicInteger(0);
  IntStream pos =
      IntStream.concat(
          IntStream.of(0), Arrays.stream(chunks).mapToInt(Bytes::size).map(sum::addAndGet));
  if (shift > 0) {
    pos = pos.limit(chunks.length);
  } else {
    pos = pos.skip(1);
  }
  pos = pos.map(p -> p + shift).map(p -> Math.max(p, 0));
  return slice(toByteBuf(chunks), pos.toArray());
}

Example 15

Source File: ConcatTest.java From jdk8u60 with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 16

Source File: ConcatTest.java From TencentKona-8 with GNU General Public License v2.0

5 votes

private void assertIntConcat(Stream<Integer> s1, Stream<Integer> s2, boolean parallel, boolean ordered) {
    IntStream result = IntStream.concat(s1.mapToInt(Integer::intValue),
                                        s2.mapToInt(Integer::intValue));
    assertEquals(result.isParallel(), parallel);
    assertConcatContent(result.spliterator(), ordered,
                        expected.stream().mapToInt(Integer::intValue).spliterator());
}

Example 17

Source File: IntStreamExample.java From levelup-java-examples with Apache License 2.0

3 votes

@Test
public void intstream_concat() {

	IntStream first = IntStream.builder().add(10).build();
	IntStream second = IntStream.builder().add(10).build();

	IntStream third = IntStream.concat(first, second);

	assertEquals(20, third.sum());
}

Example 18

Source File: IntStreamEx.java From streamex with Apache License 2.0

2 votes

/**
 * Returns a new {@code IntStreamEx} which is a concatenation of this stream
 * and the stream containing supplied values
 * 
 * <p>
 * This is a <a href="package-summary.html#StreamOps">quasi-intermediate
 * operation</a>.
 * 
 * @param values the values to append to the stream
 * @return the new stream
 */
public IntStreamEx append(int... values) {
    if (values.length == 0)
        return this;
    return new IntStreamEx(IntStream.concat(stream(), IntStream.of(values)), context);
}

Example 19

Source File: IntStreamEx.java From streamex with Apache License 2.0

2 votes

/**
 * Creates a lazily concatenated stream whose elements are all the elements
 * of this stream followed by all the elements of the other stream. The
 * resulting stream is ordered if both of the input streams are ordered, and
 * parallel if either of the input streams is parallel. When the resulting
 * stream is closed, the close handlers for both input streams are invoked.
 *
 * @param other the other stream
 * @return this stream appended by the other stream
 * @see IntStream#concat(IntStream, IntStream)
 */
public IntStreamEx append(IntStream other) {
    return new IntStreamEx(IntStream.concat(stream(), other), context.combine(other));
}

Example 20

Source File: IntStreamEx.java From streamex with Apache License 2.0

2 votes

/**
 * Returns a new {@code IntStreamEx} which is a concatenation of the stream
 * containing supplied values and this stream
 * 
 * <p>
 * This is a <a href="package-summary.html#StreamOps">quasi-intermediate
 * operation</a>.
 * 
 * @param values the values to prepend to the stream
 * @return the new stream
 */
public IntStreamEx prepend(int... values) {
    if (values.length == 0)
        return this;
    return new IntStreamEx(IntStream.concat(IntStream.of(values), stream()), context);
}