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java-streams-8-api - adding slf4j fixing indentation

This commit is contained in:
slavisa-baeldung 2016-06-15 06:57:43 +02:00
parent f5ecf03890
commit a5bde90d40
2 changed files with 53 additions and 53 deletions
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6
core-java-8/pom.xml
View File

@ -41,6 +41,12 @@
<version>3.3.2</version> <version>3.3.2</version>
</dependency> </dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<!-- test scoped --> <!-- test scoped -->
<dependency> <dependency>

38
core-java-8/src/test/java/com/baeldung/java8/Java8StreamApiTest.java
View File

@ -2,44 +2,35 @@ package com.baeldung.java8;
import com.baeldung.streamApi.Product; import com.baeldung.streamApi.Product;
import org.junit.Before; import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test; import org.junit.Test;
import org.mockito.Mock; import org.slf4j.Logger;
import org.mockito.Mockito; import org.slf4j.LoggerFactory;
import java.io.BufferedWriter; import java.io.BufferedWriter;
import java.io.File;
import java.io.IOException; import java.io.IOException;
import java.nio.charset.Charset; import java.nio.charset.Charset;
import java.nio.file.Files; import java.nio.file.Files;
import java.nio.file.Path; import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.*; import java.util.*;
import java.util.logging.Logger;
import java.util.regex.Pattern; import java.util.regex.Pattern;
import java.util.stream.*; import java.util.stream.*;
import static org.junit.Assert.*; import static org.junit.Assert.*;
import static org.mockito.Matchers.anyString;
import static org.mockito.Mockito.mock;
/**
* Created by Alex Vengr
*/
public class Java8StreamApiTest { public class Java8StreamApiTest {
private long counter; private long counter;
private static Logger log = Logger.getAnonymousLogger(); private static Logger log = LoggerFactory.getLogger(Java8StreamApiTest.class);
private List<Product> productList; private List<Product> productList;
@Before @Before
public void init() { public void init() {
productList = Arrays.asList(new Product(23, "potatoes"), productList = Arrays.asList(
new Product(14, "orange"), new Product(13, "lemon"), new Product(23, "potatoes"), new Product(14, "orange"),
new Product(23, "bread"), new Product(13, "sugar")); new Product(13, "lemon"), new Product(23, "bread"),
new Product(13, "sugar"));
} }
@Test @Test
@ -62,14 +53,14 @@ public class Java8StreamApiTest {
wasCalled(); wasCalled();
return element.substring(0, 3); return element.substring(0, 3);
}).count(); }).count();
assertEquals( 1, counter); assertEquals(1, counter);
counter = 0; counter = 0;
long sizeSecond = list.stream().map(element -> { long sizeSecond = list.stream().map(element -> {
wasCalled(); wasCalled();
return element.substring(0, 3); return element.substring(0, 3);
}).skip(2).count(); }).skip(2).count();
assertEquals( 3, counter); assertEquals(3, counter);
} }
@Test @Test
@ -117,7 +108,7 @@ public class Java8StreamApiTest {
try { try {
streamOfStrings = Files.lines(path, Charset.forName("UTF-8")); streamOfStrings = Files.lines(path, Charset.forName("UTF-8"));
} catch (IOException e) { } catch (IOException e) {
e.printStackTrace(); log.error("Error creating streams from paths {}", path, e.getMessage(), e);
} }
assertEquals("a", streamOfStrings.findFirst().get()); assertEquals("a", streamOfStrings.findFirst().get());
@ -215,7 +206,10 @@ public class Java8StreamApiTest {
public void customCollector_whenResultContainsAllElementsFrSource_thenCorrect() { public void customCollector_whenResultContainsAllElementsFrSource_thenCorrect() {
Collector<Product, ?, LinkedList<Product>> toLinkedList = Collector<Product, ?, LinkedList<Product>> toLinkedList =
Collector.of(LinkedList::new, LinkedList::add, Collector.of(LinkedList::new, LinkedList::add,
(first, second) -> { first.addAll(second); return first; }); (first, second) -> {
first.addAll(second);
return first;
});
LinkedList<Product> linkedListOfPersons = productList.stream().collect(toLinkedList); LinkedList<Product> linkedListOfPersons = productList.stream().collect(toLinkedList);
assertTrue(linkedListOfPersons.containsAll(productList)); assertTrue(linkedListOfPersons.containsAll(productList));
@ -252,13 +246,13 @@ public class Java8StreamApiTest {
try { try {
path = Files.createTempFile(null, ".txt"); path = Files.createTempFile(null, ".txt");
} catch (IOException e) { } catch (IOException e) {
e.printStackTrace(); log.error(e.getMessage());
} }
try (BufferedWriter writer = Files.newBufferedWriter(path)) { try (BufferedWriter writer = Files.newBufferedWriter(path)) {
writer.write("a\nb\nc"); writer.write("a\nb\nc");
} catch (IOException e) { } catch (IOException e) {
e.printStackTrace(); log.error(e.getMessage());
} }
return path; return path;
} }