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Merge branch 'master' of https://github.com/dkapil/tutorials into task/BAEL-9467

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Dhawal Kapil
2018-10-16 23:22:43 +05:30
parent 201c3a75c8 7d03f03ebb
commit e72e7f7152
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README.md
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The "REST with Spring" Classes
==============================
Here's the Master Class of REST With Spring (price changes permanently next Friday): <br/>
**[>> THE REST WITH SPRING MASTER CLASS](http://www.baeldung.com/rest-with-spring-course?utm_source=github&utm_medium=social&utm_content=tutorials&utm_campaign=rws#master-class)**
Here's the Master Class of REST With Spring (along with the newly announced Boot 2 material): <br/>
**[>> THE REST WITH SPRING - MASTER CLASS](http://www.baeldung.com/rest-with-spring-course?utm_source=github&utm_medium=social&utm_content=tutorials&utm_campaign=rws#master-class)**
And here's the Master Class of Learn Spring Security: <br/>
**[>> LEARN SPRING SECURITY MASTER CLASS](http://www.baeldung.com/learn-spring-security-course?utm_source=github&utm_medium=social&utm_content=tutorials&utm_campaign=lss#master-class)**
**[>> LEARN SPRING SECURITY - MASTER CLASS](http://www.baeldung.com/learn-spring-security-course?utm_source=github&utm_medium=social&utm_content=tutorials&utm_campaign=lss#master-class)**
Spring Tutorials
Java and Spring Tutorials
================
This project is **a collection of small and focused tutorials** each covering a single and well defined area of development.
Most of the tutorial projects are focused on the `Spring Framework` (and `Spring Security`).
This project is **a collection of small and focused tutorials** - each covering a single and well defined area of development in the Java ecosystem.
A strong focus of these is, of course, the Spring Framework - Spring, Spring Boot and Spring Securiyt.
In additional to Spring, the following technologies are in focus: `core Java`, `Jackson`, `HttpClient`, `Guava`.
Building the project
====================
To do the full build, do: `mvn install -Pdefault -Dgib.enabled=false`
Working with the code in Eclipse
================================
Any IDE can be used to work with the projects, but if you're using Eclipse, consider the following.
- import the included **formatter** in Eclipse:
`https://github.com/eugenp/tutorials/tree/master/eclipse`
CI - Jenkins
================================
This tutorials project is being built **[>> HERE](https://rest-security.ci.cloudbees.com/job/tutorials-unit/)**
### Relevant Articles:
================================
- [Apache Maven Standard Directory Layout](http://www.baeldung.com/maven-directory-structure)
- [Apache Maven Tutorial](http://www.baeldung.com/maven)
- [Designing a User Friendly Java Library](http://www.baeldung.com/design-a-user-friendly-java-library)
algorithms/src/main/java/com/baeldung/algorithms/insertionsort/InsertionSort.java
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package com.baeldung.algorithms.insertionsort;
public class InsertionSort {
public static void insertionSortImperative(int[] input) {
for (int i = 1; i < input.length; i++) {
int key = input[i];
int j = i - 1;
while (j >= 0 && input[j] > key) {
input[j + 1] = input[j];
j = j - 1;
}
input[j + 1] = key;
}
}
public static void insertionSortRecursive(int[] input) {
insertionSortRecursive(input, input.length);
}
private static void insertionSortRecursive(int[] input, int i) {
// base case
if (i <= 1) {
return;
}
// sort the first i - 1 elements of the array
insertionSortRecursive(input, i - 1);
// then find the correct position of the element at position i
int key = input[i - 1];
int j = i - 2;
// shifting the elements from their position by 1
while (j >= 0 && input[j] > key) {
input[j + 1] = input[j];
j = j - 1;
}
// inserting the key at the appropriate position
input[j + 1] = key;
}
}
algorithms/src/main/java/com/baeldung/algorithms/kthlargest/FindKthLargest.java
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private int randomPartition(Integer arr[], int left, int right) {
int n = right - left + 1;
int pivot = (int) (Math.random()) % n;
int pivot = (int) (Math.random() * n);
swap(arr, left + pivot, right);
return partition(arr, left, right);
}
algorithms/src/test/java/com/baeldung/algorithms/insertionsort/InsertionSortUnitTest.java
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package com.baeldung.algorithms.insertionsort;
import com.baeldung.algorithms.insertionsort.InsertionSort;
import org.junit.Test;
import static org.junit.Assert.assertArrayEquals;
public class InsertionSortUnitTest {
@Test
public void givenUnsortedArray_whenInsertionSortImperative_thenSortedAsc() {
int[] input = {6, 2, 3, 4, 5, 1};
InsertionSort.insertionSortImperative(input);
int[] expected = {1, 2, 3, 4, 5, 6};
assertArrayEquals("the two arrays are not equal", expected, input);
}
@Test
public void givenUnsortedArray_whenInsertionSortRecursive_thenSortedAsc() {
int[] input = {6, 4, 5, 2, 3, 1};
InsertionSort.insertionSortRecursive(input);
int[] expected = {1, 2, 3, 4, 5, 6};
assertArrayEquals("the two arrays are not equal", expected, input);
}
}
core-java-collections/README.md
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- [Thread Safe LIFO Data Structure Implementations](https://www.baeldung.com/java-lifo-thread-safe)
- [Collections.emptyList() vs. New List Instance](https://www.baeldung.com/java-collections-emptylist-new-list)
- [Initialize a HashMap in Java](https://www.baeldung.com/java-initialize-hashmap)
- [Differences Between Collection.clear() and Collection.removeAll()](https://www.baeldung.com/java-collection-clear-vs-removeall)
- [Performance of contains() in a HashSet vs ArrayList](https://www.baeldung.com/java-hashset-arraylist-contains-performance)
- [Get the Key for a Value from a Java Map](https://www.baeldung.com/java-map-key-from-value)
- [Time Complexity of Java Collections](https://www.baeldung.com/java-collections-complexity)
core-java-collections/pom.xml
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<artifactId>commons-exec</artifactId>
<version>1.3</version>
</dependency>
<dependency>
<groupId>one.util</groupId>
<artifactId>streamex</artifactId>
<version>0.6.5</version>
</dependency>
</dependencies>
core-java-collections/src/main/java/com/baeldung/map/java_8/MergeMaps.java
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package com.baeldung.map.java_8;
import com.baeldung.sort.Employee;
import one.util.streamex.EntryStream;
import java.util.HashMap;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class MergeMaps {
private static Map<String, Employee> map1 = new HashMap<>();
private static Map<String, Employee> map2 = new HashMap<>();
public static void main(String[] args) {
initialize();
mergeFunction();
streamConcat();
streamOf();
streamEx();
streamMerge();
}
private static void streamMerge() {
Map<String, Employee> map3 = map2.entrySet()
.stream()
.collect(
Collectors.toMap(
Map.Entry::getKey,
Map.Entry::getValue,
(v1, v2) -> new Employee(v1.getId(), v2.getName()),
() -> new HashMap<>(map1)
)
);
System.out.println(map3);
}
private static void streamEx() {
Map<String, Employee> map3 = EntryStream.of(map1)
.append(EntryStream.of(map2))
.toMap((e1, e2) -> e1);
System.out.println(map3);
}
private static void streamOf() {
Map<String, Employee> map3 = Stream.of(map1, map2)
.flatMap(map -> map.entrySet().stream())
.collect(
Collectors.toMap(
Map.Entry::getKey,
Map.Entry::getValue,
(v1, v2) -> new Employee(v1.getId(), v2.getName())
)
);
map3.entrySet().forEach(System.out::println);
}
private static void streamConcat() {
Map<String, Employee> result = Stream.concat(map1.entrySet().stream(), map2.entrySet().stream()).collect(Collectors.toMap(
Map.Entry::getKey,
Map.Entry::getValue,
(value1, value2) -> new Employee(value2.getId(), value1.getName())
));
result.entrySet().forEach(System.out::println);
}
private static void mergeFunction() {
Map<String, Employee> map3 = new HashMap<>(map1);
map2.forEach(
(key, value) -> map3.merge(key, value, (v1, v2) ->
new Employee(v1.getId(), v2.getName()))
);
map3.entrySet().forEach(System.out::println);
}
private static void initialize() {
Employee employee1 = new Employee(1L, "Henry");
map1.put(employee1.getName(), employee1);
Employee employee2 = new Employee(22L, "Annie");
map1.put(employee2.getName(), employee2);
Employee employee3 = new Employee(8L, "John");
map1.put(employee3.getName(), employee3);
Employee employee4 = new Employee(2L, "George");
map2.put(employee4.getName(), employee4);
Employee employee5 = new Employee(3L, "Henry");
map2.put(employee5.getName(), employee5);
}
}
core-java-collections/src/test/java/com/baeldung/java/map/KeyCheckTest.java
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package com.baeldung.java.map;
import static org.assertj.core.api.Assertions.assertThat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.collections4.MultiMap;
import org.apache.commons.collections4.MultiMapUtils;
import org.apache.commons.collections4.MultiValuedMap;
import org.apache.commons.collections4.map.MultiValueMap;
import org.apache.commons.collections4.multimap.ArrayListValuedHashMap;
import org.apache.commons.collections4.multimap.HashSetValuedHashMap;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.LinkedHashMultimap;
import com.google.common.collect.Multimap;
import com.google.common.collect.TreeMultimap;
public class KeyCheckTest {
@Test
public void whenKeyIsPresent_thenContainsKeyReturnsTrue() {
Map<String, String> map = Collections.singletonMap("key", "value");
assertTrue(map.containsKey("key"));
assertFalse(map.containsKey("missing"));
}
@Test
public void whenKeyHasNullValue_thenGetStillWorks() {
Map<String, String> map = Collections.singletonMap("nothing", null);
assertTrue(map.containsKey("nothing"));
assertNull(map.get("nothing"));
}
}
core-java-io/src/main/java/com/baeldung/stream/OutputStreamExamples.java
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package com.baeldung.stream;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
public class OutputStreamExamples {
public void fileOutputStreamByteSequence(String file, String data) throws IOException {
byte[] bytes = data.getBytes();
try (OutputStream out = new FileOutputStream(file)) {
out.write(bytes);
}
}
public void fileOutputStreamByteSubSequence(String file, String data) throws IOException {
byte[] bytes = data.getBytes();
try (OutputStream out = new FileOutputStream(file)) {
out.write(bytes, 6, 5);
}
}
public void fileOutputStreamByteSingle(String file, String data) throws IOException {
byte[] bytes = data.getBytes();
try (OutputStream out = new FileOutputStream(file)) {
out.write(bytes[6]);
}
}
public void bufferedOutputStream(String file, String... data) throws IOException {
try (BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(file))) {
for (String s : data) {
out.write(s.getBytes());
out.write(" ".getBytes());
}
}
}
public void outputStreamWriter(String file, String data) throws IOException {
try (OutputStream out = new FileOutputStream(file); Writer writer = new OutputStreamWriter(out, "UTF-8")) {
writer.write(data);
}
}
}
core-java-io/src/test/java/com/baeldung/stream/OutputStreamExamplesTest.java
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package com.baeldung.stream;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.IOException;
import org.junit.Before;
import org.junit.Test;
public class OutputStreamExamplesTest {
StringBuilder filePath = new StringBuilder();
@Before
public void init() {
filePath.append("src");
filePath.append(File.separator);
filePath.append("test");
filePath.append(File.separator);
filePath.append("resources");
filePath.append(File.separator);
filePath.append("output_file.txt");
}
@Test
public void givenOutputStream_whenWriteSingleByteCalled_thenOutputCreated() throws IOException {
final File file = new File(filePath.toString());
OutputStreamExamples examples = new OutputStreamExamples();
examples.fileOutputStreamByteSingle(filePath.toString(), "Hello World!");
assertTrue(file.exists());
file.delete();
}
@Test
public void givenOutputStream_whenWriteByteSequenceCalled_thenOutputCreated() throws IOException {
final File file = new File(filePath.toString());
OutputStreamExamples examples = new OutputStreamExamples();
examples.fileOutputStreamByteSequence(filePath.toString(), "Hello World!");
assertTrue(file.exists());
file.delete();
}
@Test
public void givenOutputStream_whenWriteByteSubSequenceCalled_thenOutputCreated() throws IOException {
final File file = new File(filePath.toString());
OutputStreamExamples examples = new OutputStreamExamples();
examples.fileOutputStreamByteSubSequence(filePath.toString(), "Hello World!");
assertTrue(file.exists());
file.delete();
}
@Test
public void givenBufferedOutputStream_whenCalled_thenOutputCreated() throws IOException {
final File file = new File(filePath.toString());
OutputStreamExamples examples = new OutputStreamExamples();
examples.bufferedOutputStream(filePath.toString(), "Hello", "World!");
assertTrue(file.exists());
file.delete();
}
@Test
public void givenOutputStreamWriter_whenCalled_thenOutputCreated() throws IOException {
final File file = new File(filePath.toString());
OutputStreamExamples examples = new OutputStreamExamples();
examples.outputStreamWriter(filePath.toString(), "Hello World!");
assertTrue(file.exists());
file.delete();
}
}
core-java/README.md
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- [The Traveling Salesman Problem in Java](http://www.baeldung.com/java-simulated-annealing-for-traveling-salesman)
- [How to Create an Executable JAR with Maven](http://www.baeldung.com/executable-jar-with-maven)
- [How to Design a Genetic Algorithm in Java](http://www.baeldung.com/java-genetic-algorithm)
- [Spring Security – Cache Control Headers](http://www.baeldung.com/spring-security-cache-control-headers)
- [Basic Introduction to JMX](http://www.baeldung.com/java-management-extensions)
- [AWS Lambda With Java](http://www.baeldung.com/java-aws-lambda)
- [Introduction to Nashorn](http://www.baeldung.com/java-nashorn)
@@ -37,7 +36,6 @@
- [Guide to sun.misc.Unsafe](http://www.baeldung.com/java-unsafe)
- [How to Perform a Simple HTTP Request in Java](http://www.baeldung.com/java-http-request)
- [Call Methods at Runtime Using Java Reflection](http://www.baeldung.com/java-method-reflection)
- [Guide to UUID in JAVA](http://www.baeldung.com/guide-to-uuid-in-java)
- [How to Add a Single Element to a Stream](http://www.baeldung.com/java-stream-append-prepend)
- [Iterating Over Enum Values in Java](http://www.baeldung.com/java-enum-iteration)
- [Kotlin Java Interoperability](http://www.baeldung.com/kotlin-java-interoperability)
flyway-cdi-extension/README.md
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@@ -0,0 +1,3 @@
### Relevant articles
- [CDI Portable Extension and Flyway](https://www.baeldung.com/cdi-portable-extension)
hibernate5/README.md
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@@ -14,4 +14,5 @@
- [Bootstrapping JPA Programmatically in Java](http://www.baeldung.com/java-bootstrap-jpa)
- [Optimistic Locking in JPA](http://www.baeldung.com/jpa-optimistic-locking)
- [Hibernate Entity Lifecycle](https://www.baeldung.com/hibernate-entity-lifecycle)
- [Mapping A Hibernate Query to a Custom Class](https://www.baeldung.com/hibernate-query-to-custom-class)
- [@JoinColumn Annotation Explained](https://www.baeldung.com/jpa-join-column)
hibernate5/src/main/java/com/baeldung/hibernate/namingstrategy/CustomPhysicalNamingStrategy.java
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package com.baeldung.hibernate.namingstrategy;
import org.hibernate.boot.model.naming.Identifier;
import org.hibernate.boot.model.naming.PhysicalNamingStrategy;
import org.hibernate.engine.jdbc.env.spi.JdbcEnvironment;
public class CustomPhysicalNamingStrategy implements PhysicalNamingStrategy {
@Override
public Identifier toPhysicalCatalogName(final Identifier identifier, final JdbcEnvironment jdbcEnv) {
return convertToSnakeCase(identifier);
}
@Override
public Identifier toPhysicalColumnName(final Identifier identifier, final JdbcEnvironment jdbcEnv) {
return convertToSnakeCase(identifier);
}
@Override
public Identifier toPhysicalSchemaName(final Identifier identifier, final JdbcEnvironment jdbcEnv) {
return convertToSnakeCase(identifier);
}
@Override
public Identifier toPhysicalSequenceName(final Identifier identifier, final JdbcEnvironment jdbcEnv) {
return convertToSnakeCase(identifier);
}
@Override
public Identifier toPhysicalTableName(final Identifier identifier, final JdbcEnvironment jdbcEnv) {
return convertToSnakeCase(identifier);
}
private Identifier convertToSnakeCase(final Identifier identifier) {
if (identifier == null) {
return identifier;
}
final String regex = "([a-z])([A-Z])";
final String replacement = "$1_$2";
final String newName = identifier.getText()
.replaceAll(regex, replacement)
.toLowerCase();
return Identifier.toIdentifier(newName);
}
}
hibernate5/src/main/java/com/baeldung/hibernate/namingstrategy/Customer.java
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package com.baeldung.hibernate.namingstrategy;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name = "Customers")
public class Customer {
@Id
@GeneratedValue
private Long id;
private String firstName;
private String lastName;
@Column(name = "email")
private String emailAddress;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmailAddress() {
return emailAddress;
}
public void setEmailAddress(String emailAddress) {
this.emailAddress = emailAddress;
}
}
hibernate5/src/test/java/com/baeldung/hibernate/namingstrategy/NamingStrategyLiveTest.java
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package com.baeldung.hibernate.namingstrategy;
import static org.junit.Assert.fail;
import java.io.IOException;
import java.util.Properties;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.boot.MetadataSources;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class NamingStrategyLiveTest {
private Session session;
@Before
public void init() {
try {
Configuration configuration = new Configuration();
Properties properties = new Properties();
properties.load(Thread.currentThread()
.getContextClassLoader()
.getResourceAsStream("hibernate-namingstrategy.properties"));
configuration.setProperties(properties);
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties())
.build();
MetadataSources metadataSources = new MetadataSources(serviceRegistry);
metadataSources.addAnnotatedClass(Customer.class);
SessionFactory factory = metadataSources.buildMetadata()
.buildSessionFactory();
session = factory.openSession();
} catch (HibernateException | IOException e) {
fail("Failed to initiate Hibernate Session [Exception:" + e.toString() + "]");
}
}
@After
public void close() {
if (session != null)
session.close();
}
@Test
public void testCustomPhysicalNamingStrategy() {
Customer customer = new Customer();
customer.setFirstName("first name");
customer.setLastName("last name");
customer.setEmailAddress("[email protected]");
session.beginTransaction();
Long id = (Long) session.save(customer);
session.flush();
session.clear();
Object[] result = (Object[]) session.createNativeQuery("select c.first_name, c.last_name, c.email from customers c where c.id = :id")
.setParameter("id", id)
.getSingleResult();
}
}
hibernate5/src/test/resources/hibernate-namingstrategy.properties
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hibernate.connection.driver_class=org.h2.Driver
hibernate.connection.url=jdbc:h2:mem:mydb1;DB_CLOSE_DELAY=-1
hibernate.connection.username=sa
hibernate.dialect=org.hibernate.dialect.H2Dialect
hibernate.show_sql=true
hibernate.hbm2ddl.auto=create-drop
hibernate.physical_naming_strategy=com.baeldung.hibernate.namingstrategy.CustomPhysicalNamingStrategy
hibernate.implicit_naming_strategy=org.hibernate.boot.model.naming.ImplicitNamingStrategyJpaCompliantImpl
jackson/pom.xml
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@@ -118,7 +118,7 @@
<properties>
<!-- marshalling -->
<jackson.version>2.9.6</jackson.version>
<jackson.version>2.9.7</jackson.version>
<!-- util -->
<commons-lang3.version>3.8</commons-lang3.version>
<joda-time.version>2.10</joda-time.version>
jackson/src/main/java/com/baeldung/jackson/xmlToJson/Color.java
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package com.baeldung.jackson.xmlToJson;
public enum Color {
PINK, BLUE, YELLOW, RED;
}
jackson/src/main/java/com/baeldung/jackson/xmlToJson/Flower.java
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package com.baeldung.jackson.xmlToJson;
public class Flower {
private String name;
private Color color;
private Integer petals;
public Flower() { }
public Flower(String name, Color color, Integer petals) {
this.name = name;
this.color = color;
this.petals = petals;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Color getColor() {
return color;
}
public void setColor(Color color) {
this.color = color;
}
public Integer getPetals() {
return petals;
}
public void setPetals(Integer petals) {
this.petals = petals;
}
}
jackson/src/test/java/com/baeldung/jackson/xmlToJson/XmlToJsonUnitTest.java
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package com.baeldung.jackson.xmlToJson;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
import org.junit.Test;
import static org.junit.Assert.*;
import java.io.IOException;
public class XmlToJsonUnitTest {
@Test
public void givenAnXML_whenUseDataBidingToConvertToJSON_thenReturnDataOK() {
String flowerXML = "<Flower><name>Poppy</name><color>RED</color><petals>9</petals></Flower>";
try {
XmlMapper xmlMapper = new XmlMapper();
Flower poppy = xmlMapper.readValue(flowerXML, Flower.class);
assertEquals(poppy.getName(), "Poppy");
assertEquals(poppy.getColor(), Color.RED);
assertEquals(poppy.getPetals(), new Integer(9));
ObjectMapper mapper = new ObjectMapper();
String json = mapper.writeValueAsString(poppy);
assertEquals(json, "{\"name\":\"Poppy\",\"color\":\"RED\",\"petals\":9}");
System.out.println(json);
} catch(IOException e) {
e.printStackTrace();
}
}
@Test
public void givenAnXML_whenUseATreeConvertToJSON_thenReturnDataOK() {
String flowerXML = "<Flower><name>Poppy</name><color>RED</color><petals>9</petals></Flower>";
try {
XmlMapper xmlMapper = new XmlMapper();
JsonNode node = xmlMapper.readTree(flowerXML.getBytes());
ObjectMapper jsonMapper = new ObjectMapper();
String json = jsonMapper.writeValueAsString(node);
System.out.println(json);
assertEquals(json, "{\"name\":\"Poppy\",\"color\":\"RED\",\"petals\":\"9\"}");
} catch(IOException e) {
e.printStackTrace();
}
}
}
java-dates/src/test/java/com/baeldung/date/DateDiffUnitTest.java
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@@ -5,7 +5,9 @@ import org.junit.Test;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Duration;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.Period;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
@@ -26,6 +28,17 @@ public class DateDiffUnitTest {
assertEquals(diff, 6);
}
@Test
public void givenTwoDatesInJava8_whenDifferentiating_thenWeGetSix() {
LocalDate now = LocalDate.now();
LocalDate sixDaysBehind = now.minusDays(6);
Period period = Period.between(now, sixDaysBehind);
int diff = period.getDays();
assertEquals(diff, 6);
}
@Test
public void givenTwoDateTimesInJava8_whenDifferentiating_thenWeGetSix() {
java-difference-date/README.md
-5
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@@ -1,5 +0,0 @@
## Relevant articles:
- [Period and Duration in Java](http://www.baeldung.com/java-period-duration)
- [Introduction to the Java 8 Date/Time API](http://www.baeldung.com/java-8-date-time-intro)
- [Migrating to the New Java 8 Date Time API](http://www.baeldung.com/migrating-to-java-8-date-time-api)
java-difference-date/pom.xml
-36
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@@ -1,36 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>java-difference-date</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>java-difference-date</name>
<description>Difference between two dates in java</description>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>${joda-time.version}</version>
</dependency>
<dependency>
<groupId>com.darwinsys</groupId>
<artifactId>hirondelle-date4j</artifactId>
<version>${hirondelle-date4j.version}</version>
</dependency>
</dependencies>
<properties>
<joda-time.version>2.9.9</joda-time.version>
<hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
</properties>
</project>
java-difference-date/src/test/java/com/baeldung/DateDiffUnitTest.java
-61
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@@ -1,61 +0,0 @@
package com.baeldung;
import org.joda.time.DateTime;
import org.junit.Test;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Duration;
import java.time.ZonedDateTime;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertEquals;
public class DateDiffUnitTest {
@Test
public void givenTwoDatesBeforeJava8_whenDifferentiating_thenWeGetSix() throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy", Locale.ENGLISH);
Date firstDate = sdf.parse("06/24/2017");
Date secondDate = sdf.parse("06/30/2017");
long diffInMillies = Math.abs(secondDate.getTime() - firstDate.getTime());
long diff = TimeUnit.DAYS.convert(diffInMillies, TimeUnit.MILLISECONDS);
assertEquals(diff, 6);
}
@Test
public void givenTwoDatesInJava8_whenDifferentiating_thenWeGetSix() {
ZonedDateTime now = ZonedDateTime.now();
ZonedDateTime sixDaysBehind = now.minusDays(6);
Duration duration = Duration.between(now, sixDaysBehind);
long diff = Math.abs(duration.toDays());
assertEquals(diff, 6);
}
@Test
public void givenTwoDatesInJodaTime_whenDifferentiating_thenWeGetSix() {
DateTime now = DateTime.now();
DateTime sixDaysBehind = now.minusDays(6);
org.joda.time.Duration duration = new org.joda.time.Duration(now, sixDaysBehind);
long diff = Math.abs(duration.getStandardDays());
assertEquals(diff, 6);
}
@Test
public void givenTwoDatesInDate4j_whenDifferentiating_thenWeGetSix() {
hirondelle.date4j.DateTime now = hirondelle.date4j.DateTime.now(TimeZone.getDefault());
hirondelle.date4j.DateTime sixDaysBehind = now.minusDays(6);
long diff = Math.abs(now.numDaysFrom(sixDaysBehind));
assertEquals(diff, 6);
}
}
java-strings/README.md
+1
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@@ -27,6 +27,7 @@
- [Compact Strings in Java 9](http://www.baeldung.com/java-9-compact-string)
- [Java Check a String for Lowercase/Uppercase Letter, Special Character and Digit](https://www.baeldung.com/java-lowercase-uppercase-special-character-digit-regex)
- [Convert java.util.Date to String](https://www.baeldung.com/java-util-date-to-string)
- [Get Substring from String in Java](https://www.baeldung.com/java-substring)
- [Converting a Stack Trace to a String in Java](https://www.baeldung.com/java-stacktrace-to-string)
- [Sorting a String Alphabetically in Java](https://www.baeldung.com/java-sort-string-alphabetically)
- [Remove Emojis from a Java String](https://www.baeldung.com/java-string-remove-emojis)
javaxval/pom.xml
+3 -3
View File
@@ -63,11 +63,11 @@
<properties>
<validation-api.version>2.0.1.Final</validation-api.version>
<hibernate-validator.version>6.0.7.Final</hibernate-validator.version>
<hibernate-validator.version>6.0.13.Final</hibernate-validator.version>
<javax.el-api.version>3.0.0</javax.el-api.version>
<javax.el.version>2.2.6</javax.el.version>
<javax.el.version>3.0.0</javax.el.version>
<org.springframework.version>5.0.2.RELEASE</org.springframework.version>
<junit.version>4.12</junit.version>
<assertj.version>3.11.1</assertj.version>
</properties>
</project>
</project>
jersey/README.md
+1
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@@ -1,3 +1,4 @@
- [Jersey Filters and Interceptors](http://www.baeldung.com/jersey-filters-interceptors)
- [Jersey MVC Support](https://www.baeldung.com/jersey-mvc)
- [Bean Validation in Jersey](https://www.baeldung.com/jersey-bean-validation)
- [Set a Response Body in JAX-RS](https://www.baeldung.com/jax-rs-response)
libraries-data/README.md
+1
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@@ -11,3 +11,4 @@
- [Apache Ignite with Spring Data](http://www.baeldung.com/apache-ignite-spring-data)
- [Guide to JMapper](https://www.baeldung.com/jmapper)
- [A Guide to Apache Crunch](https://www.baeldung.com/apache-crunch)
- [Building a Data Pipeline with Flink and Kafka](https://www.baeldung.com/kafka-flink-data-pipeline)
pom.xml
+12 -14
View File
@@ -551,18 +551,6 @@
<module>spring-security-rest</module>
<module>spring-security-sso</module>
<module>spring-security-x509</module>
<module>spring-session</module>
<module>spring-sleuth</module>
<module>spring-social-login</module>
<module>spring-spel</module>
<module>spring-state-machine</module>
<module>spring-thymeleaf</module>
<module>spring-userservice</module>
<module>spring-zuul</module>
<module>spring-remoting</module>
<module>spring-reactor</module>
<module>spring-vertx</module>
<module>spring-jinq</module>
</modules>
</profile>
@@ -601,6 +589,18 @@
<module>parent-java</module>
<module>parent-kotlin</module>
<module>spring-session</module>
<module>spring-sleuth</module>
<module>spring-social-login</module>
<module>spring-spel</module>
<module>spring-state-machine</module>
<module>spring-thymeleaf</module>
<module>spring-userservice</module>
<module>spring-zuul</module>
<module>spring-remoting</module>
<module>spring-reactor</module>
<module>spring-vertx</module>
<module>spring-jinq</module>
<module>spring-rest-embedded-tomcat</module>
<module>testing-modules/testing</module>
<module>testing-modules/testng</module>
@@ -665,7 +665,6 @@
<module>dubbo</module>
<module>flyway</module>
<!-- <module>grpc</module> --><!-- protobuf-maven-plugin filecopy failure -->
<module>java-difference-date</module>
<!-- <module>JGit</module> --><!-- Unit test failure -->
<module>jni</module>
<module>jooby</module>
@@ -1138,7 +1137,6 @@
<module>dubbo</module>
<module>flyway</module>
<!-- <module>grpc</module> --><!-- protobuf-maven-plugin filecopy failure -->
<module>java-difference-date</module>
<!-- <module>JGit</module> --><!-- Unit test failure -->
<module>jni</module>
<module>jooby</module>

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