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Merge branch 'master' into master

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This commit is contained in:
Eric Martin
2019-07-04 16:00:21 -05:00
committed by GitHub
parent b40a4ad256 f6739df532
commit dc00405a28
168 changed files with 4174 additions and 209 deletions
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libraries-2/README.md
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@@ -4,4 +4,4 @@
- [A Guide to jBPM with Java](https://www.baeldung.com/jbpm-java)
- [Guide to Classgraph Library](https://www.baeldung.com/classgraph)
- [Create a Java Command Line Program with Picocli](https://www.baeldung.com/java-picocli-create-command-line-program)
- [Guide to Java Parallel Collectors Library](https://www.baeldung.com/java-parallel-collectors)
libraries-2/pom.xml
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@@ -1,65 +1,71 @@
<?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>
<artifactId>libraries2</artifactId>
<name>libraries2</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<repositories>
<repository>
<id>jboss-public-repository-group</id>
<name>JBoss Public Repository Group</name>
<url>http://repository.jboss.org/nexus/content/groups/public/</url>
<releases>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
</releases>
<snapshots>
<enabled>true</enabled>
<updatePolicy>daily</updatePolicy>
</snapshots>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
</dependency>
<dependency>
<groupId>io.github.classgraph</groupId>
<artifactId>classgraph</artifactId>
<version>${classgraph.version}</version>
</dependency>
<dependency>
<groupId>org.jbpm</groupId>
<artifactId>jbpm-test</artifactId>
<version>${jbpm.version}</version>
</dependency>
<dependency>
<groupId>info.picocli</groupId>
<artifactId>picocli</artifactId>
<version>${picocli.version}</version>
</dependency>
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>
<artifactId>libraries2</artifactId>
<name>libraries2</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<repositories>
<repository>
<id>jboss-public-repository-group</id>
<name>JBoss Public Repository Group</name>
<url>http://repository.jboss.org/nexus/content/groups/public/</url>
<releases>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
</releases>
<snapshots>
<enabled>true</enabled>
<updatePolicy>daily</updatePolicy>
</snapshots>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.mapdb</groupId>
<artifactId>mapdb</artifactId>
<version>${mapdb.version}</version>
</dependency>
<dependency>
<groupId>com.pivovarit</groupId>
<artifactId>parallel-collectors</artifactId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
</dependency>
<dependency>
<groupId>io.github.classgraph</groupId>
<artifactId>classgraph</artifactId>
<version>${classgraph.version}</version>
</dependency>
<dependency>
<groupId>org.jbpm</groupId>
<artifactId>jbpm-test</artifactId>
<version>${jbpm.version}</version>
</dependency>
<dependency>
<groupId>info.picocli</groupId>
<artifactId>picocli</artifactId>
<version>${picocli.version}</version>
</dependency>
<dependency>
<groupId>org.ejml</groupId>
<artifactId>ejml-all</artifactId>
<version>${ejml.version}</version>
</dependency>
<dependency>
<groupId>org.nd4j</groupId>
<artifactId>nd4j-native</artifactId>
<version>${nd4j.version}</version>
</dependency>
<dependency>
<groupId>org.nd4j</groupId>
<artifactId>nd4j-native</artifactId>
<version>${nd4j.version}</version>
</dependency>
<dependency>
<groupId>org.la4j</groupId>
<artifactId>la4j</artifactId>
@@ -70,88 +76,85 @@
<artifactId>colt</artifactId>
<version>${colt.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>${spring-boot-starter.version}</version>
</dependency>
<dependency>
<groupId>net.openhft</groupId>
<artifactId>chronicle-map</artifactId>
<version>${chronicle.map.version}</version>
<exclusions>
<exclusion>
<groupId>com.sun.java</groupId>
<artifactId>tools</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Dependencies for response decoder with okhttp -->
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>3.14.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.9</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.5</version>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>mockwebserver</artifactId>
<version>3.14.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>${spring-boot-starter.version}</version>
</dependency>
<dependency>
<groupId>net.openhft</groupId>
<artifactId>chronicle-map</artifactId>
<version>${chronicle.map.version}</version>
<exclusions>
<exclusion>
<groupId>com.sun.java</groupId>
<artifactId>tools</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Dependencies for response decoder with okhttp -->
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>3.14.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.9</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.5</version>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>mockwebserver</artifactId>
<version>3.14.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>edu.uci.ics</groupId>
<artifactId>crawler4j</artifactId>
<version>${crawler4j.version}</version>
</dependency>
<!-- Benchmarking -->
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-core</artifactId>
<version>${jmh.version}</version>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-generator-annprocess</artifactId>
<version>${jmh.version}</version>
</dependency>
</dependency>
<dependency>
<groupId>com.github.jknack</groupId>
<artifactId>handlebars</artifactId>
<version>4.1.2</version>
</dependency>
<!-- Benchmarking -->
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-core</artifactId>
<version>${jmh.version}</version>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-generator-annprocess</artifactId>
<version>${jmh.version}</version>
</dependency>
<dependency>
<groupId>org.apache.mesos</groupId>
<artifactId>mesos</artifactId>
<version>${mesos.library.version}</version>
</dependency>
</dependencies>
<properties>
<assertj.version>3.6.2</assertj.version>
<classgraph.version>4.8.28</classgraph.version>
<jbpm.version>6.0.0.Final</jbpm.version>
<picocli.version>3.9.6</picocli.version>
<chronicle.map.version>3.17.2</chronicle.map.version>
<crawler4j.version>4.4.0</crawler4j.version>
<spring-boot-starter.version>2.1.4.RELEASE</spring-boot-starter.version>
<mesos.library.version>0.28.3</mesos.library.version>
<ejml.version>0.38</ejml.version>
<nd4j.version>1.0.0-beta4</nd4j.version>
<colt.version>1.2.0</colt.version>
<la4j.version>0.6.0</la4j.version>
<jmh.version>1.19</jmh.version>
</properties>
</dependencies>
<properties>
<mapdb.version>3.0.7</mapdb.version>
<assertj.version>3.6.2</assertj.version>
<classgraph.version>4.8.28</classgraph.version>
<jbpm.version>6.0.0.Final</jbpm.version>
<picocli.version>3.9.6</picocli.version>
<chronicle.map.version>3.17.2</chronicle.map.version>
<crawler4j.version>4.4.0</crawler4j.version>
<spring-boot-starter.version>2.1.4.RELEASE</spring-boot-starter.version>
<ejml.version>0.38</ejml.version>
<nd4j.version>1.0.0-beta4</nd4j.version>
<colt.version>1.2.0</colt.version>
<la4j.version>0.6.0</la4j.version>
<jmh.version>1.19</jmh.version>
<mesos.library.version>0.28.3</mesos.library.version>
</properties>
</project>
libraries-2/src/test/java/com/baeldung/handlebars/BasicUsageUnitTest.java
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package com.baeldung.handlebars;
import static org.assertj.core.api.Assertions.assertThat;
import com.github.jknack.handlebars.Handlebars;
import com.github.jknack.handlebars.Template;
import com.github.jknack.handlebars.io.ClassPathTemplateLoader;
import com.github.jknack.handlebars.io.TemplateLoader;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.junit.Test;
/**
* Showcases the tag usage and different template loading mechanisms.
*
* @author isaolmez
*/
public class BasicUsageUnitTest {
@Test
public void whenThereIsNoTemplateFile_ThenCompilesInline() throws IOException {
Handlebars handlebars = new Handlebars();
Template template = handlebars.compileInline("Hi {{this}}!");
String templateString = template.apply("Baeldung");
assertThat(templateString).isEqualTo("Hi Baeldung!");
}
@Test
public void whenParameterMapIsSupplied_thenDisplays() throws IOException {
Handlebars handlebars = new Handlebars();
Template template = handlebars.compileInline("Hi {{name}}!");
Map<String, String> parameterMap = new HashMap<>();
parameterMap.put("name", "Baeldung");
String templateString = template.apply(parameterMap);
assertThat(templateString).isEqualTo("Hi Baeldung!");
}
@Test
public void whenParameterObjectIsSupplied_ThenDisplays() throws IOException {
Handlebars handlebars = new Handlebars();
Template template = handlebars.compileInline("Hi {{name}}!");
Person person = new Person();
person.setName("Baeldung");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("Hi Baeldung!");
}
@Test
public void whenMultipleParametersAreSupplied_ThenDisplays() throws IOException {
Handlebars handlebars = new Handlebars();
Template template = handlebars.compileInline("Hi {{name}}! This is {{topic}}.");
Map<String, String> parameterMap = new HashMap<>();
parameterMap.put("name", "Baeldung");
parameterMap.put("topic", "Handlebars");
String templateString = template.apply(parameterMap);
assertThat(templateString).isEqualTo("Hi Baeldung! This is Handlebars.");
}
@Test
public void whenNoLoaderIsGiven_ThenSearchesClasspath() throws IOException {
Handlebars handlebars = new Handlebars();
Template template = handlebars.compile("greeting");
Person person = getPerson("Baeldung");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("Hi Baeldung!");
}
@Test
public void whenClasspathTemplateLoaderIsGiven_ThenSearchesClasspathWithPrefixSuffix() throws IOException {
TemplateLoader loader = new ClassPathTemplateLoader("/handlebars", ".html");
Handlebars handlebars = new Handlebars(loader);
Template template = handlebars.compile("greeting");
Person person = getPerson("Baeldung");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("Hi Baeldung!");
}
@Test
public void whenMultipleLoadersAreGiven_ThenSearchesSequentially() throws IOException {
TemplateLoader firstLoader = new ClassPathTemplateLoader("/handlebars", ".html");
TemplateLoader secondLoader = new ClassPathTemplateLoader("/templates", ".html");
Handlebars handlebars = new Handlebars().with(firstLoader, secondLoader);
Template template = handlebars.compile("greeting");
Person person = getPerson("Baeldung");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("Hi Baeldung!");
}
private Person getPerson(String name) {
Person person = new Person();
person.setName(name);
return person;
}
}
libraries-2/src/test/java/com/baeldung/handlebars/BuiltinHelperUnitTest.java
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package com.baeldung.handlebars;
import static org.assertj.core.api.Assertions.assertThat;
import com.github.jknack.handlebars.Handlebars;
import com.github.jknack.handlebars.Template;
import com.github.jknack.handlebars.io.ClassPathTemplateLoader;
import com.github.jknack.handlebars.io.TemplateLoader;
import java.io.IOException;
import org.junit.Test;
/**
* Showcases the built-in template helpers.
*
* @author isaolmez
*/
public class BuiltinHelperUnitTest {
private TemplateLoader templateLoader = new ClassPathTemplateLoader("/handlebars", ".html");
@Test
public void whenUsedWith_ThenContextChanges() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
Template template = handlebars.compile("with");
Person person = getPerson("Baeldung");
person.getAddress().setStreet("World");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("\n<h4>I live in World</h4>\n");
}
@Test
public void whenUsedWithMustacheStyle_ThenContextChanges() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
Template template = handlebars.compile("with_mustache");
Person person = getPerson("Baeldung");
person.getAddress().setStreet("World");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("\n<h4>I live in World</h4>\n");
}
@Test
public void whenUsedEach_ThenIterates() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
Template template = handlebars.compile("each");
Person person = getPerson("Baeldung");
Person friend1 = getPerson("Java");
Person friend2 = getPerson("Spring");
person.getFriends().add(friend1);
person.getFriends().add(friend2);
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("\n<span>Java is my friend.</span>\n"
+ "\n<span>Spring is my friend.</span>\n");
}
@Test
public void whenUsedEachMustacheStyle_ThenIterates() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
Template template = handlebars.compile("each_mustache");
Person person = getPerson("Baeldung");
Person friend1 = getPerson("Java");
Person friend2 = getPerson("Spring");
person.getFriends().add(friend1);
person.getFriends().add(friend2);
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("\n<span>Java is my friend.</span>\n"
+ "\n<span>Spring is my friend.</span>\n");
}
@Test
public void whenUsedIf_ThenPutsCondition() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
Template template = handlebars.compile("if");
Person person = getPerson("Baeldung");
person.setBusy(true);
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("\n<h4>Baeldung is busy.</h4>\n");
}
@Test
public void whenUsedIfMustacheStyle_ThenPutsCondition() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
Template template = handlebars.compile("if_mustache");
Person person = getPerson("Baeldung");
person.setBusy(true);
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("\n<h4>Baeldung is busy.</h4>\n");
}
private Person getPerson(String name) {
Person person = new Person();
person.setName(name);
return person;
}
}
libraries-2/src/test/java/com/baeldung/handlebars/CustomHelperUnitTest.java
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package com.baeldung.handlebars;
import static org.assertj.core.api.Assertions.assertThat;
import com.github.jknack.handlebars.Handlebars;
import com.github.jknack.handlebars.Helper;
import com.github.jknack.handlebars.Options;
import com.github.jknack.handlebars.Template;
import com.github.jknack.handlebars.io.ClassPathTemplateLoader;
import com.github.jknack.handlebars.io.TemplateLoader;
import java.io.IOException;
import org.junit.Test;
/**
* Showcases implementing a custom template helper.
*
* @author isaolmez
*/
public class CustomHelperUnitTest {
private TemplateLoader templateLoader = new ClassPathTemplateLoader("/handlebars", ".html");
@Test
public void whenHelperIsCreated_ThenCanRegister() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
handlebars.registerHelper("isBusy", new Helper<Person>() {
@Override
public Object apply(Person context, Options options) throws IOException {
String busyString = context.isBusy() ? "busy" : "available";
return context.getName() + " - " + busyString;
}
});
Template template = handlebars.compile("person");
Person person = getPerson("Baeldung");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("Baeldung - busy");
}
@Test
public void whenHelperSourceIsCreated_ThenCanRegister() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
handlebars.registerHelpers(new HelperSource());
Template template = handlebars.compile("person");
Person person = getPerson("Baeldung");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("Baeldung - busy");
}
private Person getPerson(String name) {
Person person = new Person();
person.setName(name);
person.setBusy(true);
return person;
}
}
libraries-2/src/test/java/com/baeldung/handlebars/HelperSource.java
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package com.baeldung.handlebars;
public class HelperSource {
public String isBusy(Person context) {
String busyString = context.isBusy() ? "busy" : "available";
return context.getName() + " - " + busyString;
}
}
libraries-2/src/test/java/com/baeldung/handlebars/Person.java
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package com.baeldung.handlebars;
import java.util.ArrayList;
import java.util.List;
public class Person {
private String name;
private boolean busy;
private Address address = new Address();
private List<Person> friends = new ArrayList<>();
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public boolean isBusy() {
return busy;
}
public void setBusy(boolean busy) {
this.busy = busy;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
public List<Person> getFriends() {
return friends;
}
public void setFriends(List<Person> friends) {
this.friends = friends;
}
public static class Address {
private String street;
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
}
}
libraries-2/src/test/java/com/baeldung/handlebars/ReusingTemplatesUnitTest.java
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package com.baeldung.handlebars;
import static org.assertj.core.api.Assertions.assertThat;
import com.github.jknack.handlebars.Handlebars;
import com.github.jknack.handlebars.Template;
import com.github.jknack.handlebars.io.ClassPathTemplateLoader;
import com.github.jknack.handlebars.io.TemplateLoader;
import java.io.IOException;
import org.junit.Test;
/**
* Showcases reusing the existing templates.
*
* @author isaolmez
*/
public class ReusingTemplatesUnitTest {
private TemplateLoader templateLoader = new ClassPathTemplateLoader("/handlebars", ".html");
@Test
public void whenOtherTemplateIsReferenced_ThenCanReuse() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
Template template = handlebars.compile("page");
Person person = new Person();
person.setName("Baeldung");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("<h4>Hi Baeldung!</h4>\n<p>This is the page Baeldung</p>");
}
@Test
public void whenBlockIsDefined_ThenCanOverrideWithPartial() throws IOException {
Handlebars handlebars = new Handlebars(templateLoader);
Template template = handlebars.compile("simplemessage");
Person person = new Person();
person.setName("Baeldung");
String templateString = template.apply(person);
assertThat(templateString).isEqualTo("\n<html>\n"
+ "<body>\n"
+ "\n This is the intro\n\n"
+ "\n Hi there!\n\n"
+ "</body>\n"
+ "</html>");
}
}
libraries-2/src/test/java/com/baeldung/mapdb/CollectionsUnitTest.java
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package com.baeldung.mapdb;
import org.junit.Test;
import org.mapdb.DB;
import org.mapdb.DBMaker;
import org.mapdb.Serializer;
import java.util.NavigableSet;
import static junit.framework.Assert.assertEquals;
public class CollectionsUnitTest {
@Test
public void givenSetCreatedInDB_whenMultipleElementsAdded_checkOnlyOneExists() {
DB db = DBMaker.memoryDB().make();
NavigableSet<String> set = db.
treeSet("mySet")
.serializer(Serializer.STRING)
.createOrOpen();
String myString = "Baeldung!";
set.add(myString);
set.add(myString);
assertEquals(1, set.size());
db.close();
}
}
libraries-2/src/test/java/com/baeldung/mapdb/HTreeMapUnitTest.java
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package com.baeldung.mapdb;
import org.jetbrains.annotations.NotNull;
import org.junit.Test;
import org.mapdb.*;
import java.io.IOException;
import static junit.framework.Assert.assertEquals;
public class HTreeMapUnitTest {
@Test
public void givenValidDB_whenHTreeMapAddedToAndRetrieved_CheckedRetrievalCorrect() {
DB db = DBMaker.memoryDB().make();
HTreeMap<String, String> hTreeMap = db
.hashMap("myTreMap")
.keySerializer(Serializer.STRING)
.valueSerializer(Serializer.STRING)
.create();
hTreeMap.put("key1", "value1");
hTreeMap.put("key2", "value2");
assertEquals(2, hTreeMap.size());
//add another value with the same key
hTreeMap.put("key1", "value3");
assertEquals(2, hTreeMap.size());
assertEquals("value3", hTreeMap.get("key1"));
}
}
libraries-2/src/test/java/com/baeldung/mapdb/HelloBaeldungUnitTest.java
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package com.baeldung.mapdb;
import org.junit.Test;
import org.mapdb.DB;
import org.mapdb.DBMaker;
import org.mapdb.HTreeMap;
import java.util.concurrent.ConcurrentMap;
import static junit.framework.Assert.assertEquals;
public class HelloBaeldungUnitTest {
@Test
public void givenInMemoryDBInstantiateCorrectly_whenDataSavedAndRetrieved_checkRetrievalCorrect() {
DB db = DBMaker.memoryDB().make();
String welcomeMessageKey = "Welcome Message";
String welcomeMessageString = "Hello Baeldung!";
HTreeMap myMap = db.hashMap("myMap").createOrOpen();
myMap.put(welcomeMessageKey, welcomeMessageString);
String welcomeMessageFromDB = (String) myMap.get(welcomeMessageKey);
db.close();
assertEquals(welcomeMessageString, welcomeMessageFromDB);
}
@Test
public void givenInFileDBInstantiateCorrectly_whenDataSavedAndRetrieved_checkRetrievalCorrect() {
DB db = DBMaker.fileDB("file.db").make();
String welcomeMessageKey = "Welcome Message";
String welcomeMessageString = "Hello Baeldung!";
HTreeMap myMap = db.hashMap("myMap").createOrOpen();
myMap.put(welcomeMessageKey, welcomeMessageString);
String welcomeMessageFromDB = (String) myMap.get(welcomeMessageKey);
db.close();
assertEquals(welcomeMessageString, welcomeMessageFromDB);
}
}
libraries-2/src/test/java/com/baeldung/mapdb/InMemoryModesUnitTest.java
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package com.baeldung.mapdb;
import org.junit.Test;
import org.mapdb.DB;
import org.mapdb.DBMaker;
import org.mapdb.HTreeMap;
import org.mapdb.Serializer;
import static junit.framework.Assert.assertEquals;
public class InMemoryModesUnitTest {
@Test
public void givenDBCreatedOnHeap_whenUsed_checkUsageCorrect() {
DB heapDB = DBMaker.heapDB().make();
HTreeMap<Integer, String> map = heapDB
.hashMap("myMap")
.keySerializer(Serializer.INTEGER)
.valueSerializer(Serializer.STRING)
.createOrOpen();
map.put(1, "ONE");
assertEquals("ONE", map.get(1));
}
@Test
public void givenDBCreatedBaseOnByteArray_whenUsed_checkUsageCorrect() {
DB heapDB = DBMaker.memoryDB().make();
HTreeMap<Integer, String> map = heapDB
.hashMap("myMap")
.keySerializer(Serializer.INTEGER)
.valueSerializer(Serializer.STRING)
.createOrOpen();
map.put(1, "ONE");
assertEquals("ONE", map.get(1));
}
@Test
public void givenDBCreatedBaseOnDirectByteBuffer_whenUsed_checkUsageCorrect() {
DB heapDB = DBMaker.memoryDirectDB().make();
HTreeMap<Integer, String> map = heapDB
.hashMap("myMap")
.keySerializer(Serializer.INTEGER)
.valueSerializer(Serializer.STRING)
.createOrOpen();
map.put(1, "ONE");
assertEquals("ONE", map.get(1));
}
}
libraries-2/src/test/java/com/baeldung/mapdb/SortedTableMapUnitTest.java
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package com.baeldung.mapdb;
import org.junit.Test;
import org.mapdb.Serializer;
import org.mapdb.SortedTableMap;
import org.mapdb.volume.MappedFileVol;
import org.mapdb.volume.Volume;
import static junit.framework.Assert.assertEquals;
public class SortedTableMapUnitTest {
private static final String VOLUME_LOCATION = "sortedTableMapVol.db";
@Test
public void givenValidSortedTableMapSetup_whenQueried_checkValuesCorrect() {
//create memory mapped volume, readonly false
Volume vol = MappedFileVol.FACTORY.makeVolume(VOLUME_LOCATION, false);
//create sink to feed the map with data
SortedTableMap.Sink<Integer, String> sink =
SortedTableMap.create(
vol,
Serializer.INTEGER,
Serializer.STRING
).createFromSink();
//add content
for(int i = 0; i < 100; i++){
sink.put(i, "Value " + Integer.toString(i));
}
sink.create();
//now open in read-only mode
Volume openVol = MappedFileVol.FACTORY.makeVolume(VOLUME_LOCATION, true);
SortedTableMap<Integer, String> sortedTableMap = SortedTableMap.open(
openVol,
Serializer.INTEGER,
Serializer.STRING
);
assertEquals(100, sortedTableMap.size());
}
}
libraries-2/src/test/java/com/baeldung/mapdb/TransactionsUnitTest.java
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package com.baeldung.mapdb;
import org.junit.Test;
import org.mapdb.DB;
import org.mapdb.DBMaker;
import org.mapdb.Serializer;
import java.util.NavigableSet;
import static junit.framework.Assert.assertEquals;
public class TransactionsUnitTest {
@Test
public void givenValidDBSetup_whenTransactionCommittedAndRolledBack_checkPreviousStateAchieved() {
DB db = DBMaker.memoryDB().transactionEnable().make();
NavigableSet<String> set = db
.treeSet("mySet")
.serializer(Serializer.STRING)
.createOrOpen();
set.add("One");
set.add("Two");
db.commit();
assertEquals(2, set.size());
set.add("Three");
assertEquals(3, set.size());
db.rollback();
assertEquals(2, set.size());
db.close();
}
}
libraries-2/src/test/java/com/baeldung/parallel_collectors/ParallelCollectorsUnitTest.java
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package com.baeldung.parallel_collectors;
import org.junit.Test;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadLocalRandom;
import java.util.stream.Collectors;
import static com.pivovarit.collectors.ParallelCollectors.parallel;
import static com.pivovarit.collectors.ParallelCollectors.parallelOrdered;
import static com.pivovarit.collectors.ParallelCollectors.parallelToCollection;
import static com.pivovarit.collectors.ParallelCollectors.parallelToList;
import static com.pivovarit.collectors.ParallelCollectors.parallelToMap;
import static com.pivovarit.collectors.ParallelCollectors.parallelToStream;
public class ParallelCollectorsUnitTest {
@Test
public void shouldProcessInParallelWithStreams() {
List<Integer> ids = Arrays.asList(1, 2, 3);
List<String> results = ids.parallelStream()
.map(i -> fetchById(i))
.collect(Collectors.toList());
System.out.println(results);
}
@Test
public void shouldProcessInParallelWithParallelCollectors() {
ExecutorService executor = Executors.newFixedThreadPool(10);
List<Integer> ids = Arrays.asList(1, 2, 3);
CompletableFuture<List<String>> results = ids.stream()
.collect(parallelToList(i -> fetchById(i), executor, 4));
System.out.println(results.join());
}
@Test
public void shouldCollectToList() {
ExecutorService executor = Executors.newFixedThreadPool(10);
List<Integer> ids = Arrays.asList(1, 2, 3);
List<String> results = ids.stream()
.collect(parallelToList(i -> fetchById(i), executor, 4))
.join();
System.out.println(results); // [user-1, user-2, user-3]
}
@Test
public void shouldCollectToCollection() {
ExecutorService executor = Executors.newFixedThreadPool(10);
List<Integer> ids = Arrays.asList(1, 2, 3);
List<String> results = ids.stream()
.collect(parallelToCollection(i -> fetchById(i), LinkedList::new, executor, 4))
.join();
System.out.println(results); // [user-1, user-2, user-3]
}
@Test
public void shouldCollectToStream() {
ExecutorService executor = Executors.newFixedThreadPool(10);
List<Integer> ids = Arrays.asList(1, 2, 3);
Map<Integer, List<String>> results = ids.stream()
.collect(parallelToStream(i -> fetchById(i), executor, 4))
.thenApply(stream -> stream.collect(Collectors.groupingBy(i -> i.length())))
.join();
System.out.println(results); // [user-1, user-2, user-3]
}
@Test
public void shouldStreamInCompletionOrder() {
ExecutorService executor = Executors.newFixedThreadPool(10);
List<Integer> ids = Arrays.asList(1, 2, 3);
ids.stream()
.collect(parallel(i -> fetchByIdWithRandomDelay(i), executor, 4))
.forEach(System.out::println);
}
@Test
public void shouldStreamInOriginalOrder() {
ExecutorService executor = Executors.newFixedThreadPool(10);
List<Integer> ids = Arrays.asList(1, 2, 3);
ids.stream()
.collect(parallelOrdered(i -> fetchByIdWithRandomDelay(i), executor, 4))
.forEach(System.out::println);
}
@Test
public void shouldCollectToMap() {
ExecutorService executor = Executors.newFixedThreadPool(10);
List<Integer> ids = Arrays.asList(1, 2, 3);
Map<Integer, String> results = ids.stream()
.collect(parallelToMap(i -> i, i -> fetchById(i), executor, 4))
.join();
System.out.println(results); // {1=user-1, 2=user-2, 3=user-3}
}
@Test
public void shouldCollectToTreeMap() {
ExecutorService executor = Executors.newFixedThreadPool(10);
List<Integer> ids = Arrays.asList(1, 2, 3);
Map<Integer, String> results = ids.stream()
.collect(parallelToMap(i -> i, i -> fetchById(i), TreeMap::new, executor, 4))
.join();
System.out.println(results); // {1=user-1, 2=user-2, 3=user-3}
}
@Test
public void shouldCollectToTreeMapAndResolveClashes() {
ExecutorService executor = Executors.newFixedThreadPool(10);
List<Integer> ids = Arrays.asList(1, 2, 3);
Map<Integer, String> results = ids.stream()
.collect(parallelToMap(i -> i, i -> fetchById(i), TreeMap::new, (s1, s2) -> s1, executor, 4))
.join();
System.out.println(results); // {1=user-1, 2=user-2, 3=user-3}
}
private static String fetchById(int id) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// ignore shamelessly
}
return "user-" + id;
}
private static String fetchByIdWithRandomDelay(int id) {
try {
Thread.sleep(ThreadLocalRandom.current().nextInt(1000));
} catch (InterruptedException e) {
// ignore shamelessly
}
return "user-" + id;
}
}
libraries-2/src/test/resources/greeting.hbs
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Hi {{name}}!
libraries-2/src/test/resources/handlebars/each.html
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{{#each friends}}
<span>{{name}} is my friend.</span>
{{/each}}
libraries-2/src/test/resources/handlebars/each_mustache.html
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{{#each friends}}
<span>{{name}} is my friend.</span>
{{/each}}
libraries-2/src/test/resources/handlebars/greeting.html
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Hi {{name}}!
libraries-2/src/test/resources/handlebars/header.html
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<h4>Hi {{name}}!</h4>
libraries-2/src/test/resources/handlebars/if.html
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{{#if busy}}
<h4>{{name}} is busy.</h4>
{{else}}
<h4>{{name}} is not busy.</h4>
{{/if}}
libraries-2/src/test/resources/handlebars/if_mustache.html
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{{#if busy}}
<h4>{{name}} is busy.</h4>
{{^}}
<h4>{{name}} is not busy.</h4>
{{/if}}
libraries-2/src/test/resources/handlebars/messagebase.html
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<html>
<body>
{{#block "intro"}}
This is the intro
{{/block}}
{{#block "message"}}
{{/block}}
</body>
</html>
libraries-2/src/test/resources/handlebars/page.html
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{{>header}}
<p>This is the page {{name}}</p>
libraries-2/src/test/resources/handlebars/person.html
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{{#isBusy this}}{{/isBusy}}
libraries-2/src/test/resources/handlebars/simplemessage.html
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{{#partial "message" }}
Hi there!
{{/partial}}
{{> messagebase}}
libraries-2/src/test/resources/handlebars/with.html
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{{#with address}}
<h4>I live in {{street}}</h4>
{{/with}}
libraries-2/src/test/resources/handlebars/with_mustache.html
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{{#address}}
<h4>I live in {{street}}</h4>
{{/address}}