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Updating as per Jira comments

This commit is contained in:
Niket Agrawal 2023-10-08 21:57:29 +05:30
parent 51603e4af6
commit ca432bbe6b
2 changed files with 10 additions and 51 deletions
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10
core-java-modules/core-java-streams-5/pom.xml
View File

@ -48,21 +48,11 @@
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency>
<groupId>com.codepoetics</groupId>
<artifactId>protonpack</artifactId>
<version>1.16</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.4</version>
</dependency>
<dependency>
<groupId>one.util</groupId>
<artifactId>streamex</artifactId>
<version>0.8.1</version>
</dependency>
</dependencies>
<build>

51
core-java-modules/core-java-streams-5/src/test/java/com/baeldung/streams/firstmatchingelement/FirstMatchingElementUnitTest.java
View File

@ -5,19 +5,14 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.OptionalInt;
import java.util.stream.IntStream;
import org.apache.commons.collections4.IterableUtils;
import org.assertj.core.util.Lists;
import org.junit.Test;
import com.codepoetics.protonpack.StreamUtils;
import com.google.common.collect.Iterables;
import io.vavr.collection.Stream;
import one.util.streamex.EntryStream;
public class FirstMatchingElementUnitTest {
private final List<Object> dataList = Lists.newArrayList("String", Boolean.TRUE, Integer.valueOf(10), Boolean.FALSE, Double.valueOf(20.0));
@ -70,25 +65,18 @@ public class FirstMatchingElementUnitTest {
@Test
public void whenCalled_thenFindIndexUsingStreamTakeWhile() {
OptionalInt booleanIndex = dataList.stream()
int lastIndex = dataList.size() - 1;
int predicateIndex = dataList.stream()
.takeWhile(data -> !(data instanceof Boolean))
.mapToInt(dataList::indexOf)
.max();
if (booleanIndex.isPresent() && dataList.get(booleanIndex.getAsInt()) instanceof Boolean) {
assertEquals(1, booleanIndex.getAsInt());
}
}
@Test
public void whenCalled_thenFindIndexUsingZipWithIndex() {
int index = StreamUtils.zipWithIndex(dataList.stream())
.filter(i -> i.getValue() instanceof Boolean)
.mapToInt(i -> Long.valueOf(i.getIndex())
.intValue())
.findFirst()
.max()
.orElse(-1);
assertEquals(1, index);
if (predicateIndex != 1 && predicateIndex != lastIndex) {
assertEquals(1, predicateIndex + 1);
} else {
assertEquals(lastIndex, predicateIndex);
}
}
@Test
@ -99,27 +87,8 @@ public class FirstMatchingElementUnitTest {
@Test
public void whenCalled_thenFindIndexUsingApacheCommons() {
List<Object> dataList = Lists.newArrayList("String", Boolean.TRUE, Integer.valueOf(10), Boolean.FALSE, Double.valueOf(20.0));
int index = IterableUtils.indexOf(dataList, data -> data instanceof Boolean);
assertEquals(1, index);
}
@Test
public void whenCalled_thenFindIndexUsingStreamEx() {
Integer foundIndex = EntryStream.of(dataList)
.filterKeyValue((index, data) -> data instanceof Boolean)
.keys()
.findFirst()
.orElse(-1);
assertEquals(1, foundIndex);
}
@Test
public void whenCalled_thenFindIndexUsingVavrStream() {
Integer foundIndex = Stream.of(dataList.toArray())
.zipWithIndex()
.find(tuple -> tuple._1() instanceof Boolean)
.map(tuple -> tuple._2())
.getOrElse(-1);
assertEquals(1, foundIndex);
}
}