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 vote down vote up
@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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
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 vote down vote up
@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 vote down vote up
/**
 * 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 vote down vote up
/**
 * 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 vote down vote up
/**
 * 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);
}