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Jorge Bornhausen 2024-10-18 18:15:43 +02:00
commit 2d9bd1710c
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50
quarkus-random-generator/pom.xml Normal file
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<?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>
<parent>
<groupId>ch.phoenixtechnologies.quarkus</groupId>
<artifactId>quarkus-commons</artifactId>
<version>0.1.0-SNAPSHOT</version>
</parent>
<artifactId>quarkus-random-generator</artifactId>
<packaging>jar</packaging>
<dependencies>
<!-- https://mvnrepository.com/artifact/com.fasterxml.uuid/java-uuid-generator -->
<dependency>
<groupId>com.fasterxml.uuid</groupId>
<artifactId>java-uuid-generator</artifactId>
<version>${java-uuid-generator.version}</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj-core.version}</version>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-junit5-component</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-junit5-mockito</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-jacoco</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-junit-jupiter</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>

11
quarkus-random-generator/src/main/java/ch/phoenixtechnologies/quarkus/commons/random/RandomNumberGenerator.java Normal file
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package ch.phoenixtechnologies.quarkus.commons.random;
import java.math.BigInteger;
import java.util.Random;
public interface RandomNumberGenerator {
BigInteger generate(int numBits);
BigInteger generate(int numBits, Random random);
}

26
quarkus-random-generator/src/main/java/ch/phoenixtechnologies/quarkus/commons/random/RandomNumberGeneratorImpl.java Normal file
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package ch.phoenixtechnologies.quarkus.commons.random;
import jakarta.enterprise.context.ApplicationScoped;
import java.math.BigInteger;
import java.util.Random;
@ApplicationScoped
class RandomNumberGeneratorImpl implements RandomNumberGenerator {
private final RandomProvider provider;
RandomNumberGeneratorImpl(RandomProvider provider) {
this.provider = provider;
}
@Override
public BigInteger generate(int numBits) {
return generate(numBits, provider.get());
}
@Override
public BigInteger generate(int numBits, Random random) {
return new BigInteger(numBits, random);
}
}

18
quarkus-random-generator/src/main/java/ch/phoenixtechnologies/quarkus/commons/random/RandomProvider.java Normal file
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package ch.phoenixtechnologies.quarkus.commons.random;
import java.util.Random;
/**
* Provides Random instances that can be used for any purpose,
* such as generating random numbers or strings.
*/
public interface RandomProvider {
/**
* Get a new Random instance.
*
* @return The Random instance
* @throws IllegalStateException If the Random instance cannot be created
*/
Random get();
}

24
quarkus-random-generator/src/main/java/ch/phoenixtechnologies/quarkus/commons/random/RandomProviderImpl.java Normal file
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package ch.phoenixtechnologies.quarkus.commons.random;
import io.quarkus.arc.DefaultBean;
import jakarta.enterprise.context.ApplicationScoped;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.Random;
@DefaultBean
@ApplicationScoped
class RandomProviderImpl implements RandomProvider {
@Override
public Random get() {
try {
return SecureRandom.getInstanceStrong();
} catch (NoSuchAlgorithmException e) {
throw new IllegalStateException("Unable to obtain strong SecureRandom instance", e);
}
}
}

16
quarkus-random-generator/src/main/java/ch/phoenixtechnologies/quarkus/commons/random/UUIDGenerator.java Normal file
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package ch.phoenixtechnologies.quarkus.commons.random;
import java.util.Random;
import java.util.UUID;
public interface UUIDGenerator {
UUID generateV4();
UUID generateV4(Random random);
UUID generateV5(String name);
UUID generateV5(UUID namespace, String name);
}

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quarkus-random-generator/src/main/java/ch/phoenixtechnologies/quarkus/commons/random/UUIDGeneratorImpl.java Normal file
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package ch.phoenixtechnologies.quarkus.commons.random;
import com.fasterxml.uuid.Generators;
import jakarta.enterprise.context.ApplicationScoped;
import java.util.Random;
import java.util.UUID;
@ApplicationScoped
class UUIDGeneratorImpl implements UUIDGenerator {
@Override
public UUID generateV4() {
return Generators.randomBasedGenerator().generate();
}
@Override
public UUID generateV4(Random random) {
return Generators.randomBasedGenerator(random).generate();
}
@Override
public UUID generateV5(String name) {
return Generators.nameBasedGenerator().generate(name);
}
@Override
public UUID generateV5(UUID namespace, String name) {
return Generators.nameBasedGenerator(namespace).generate(name);
}
}

54
quarkus-random-generator/src/test/java/ch/phoenixtechnologies/quarkus/commons/random/RandomNumberGeneratorImplTest.java Normal file
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package ch.phoenixtechnologies.quarkus.commons.random;
import io.quarkus.test.component.QuarkusComponentTest;
import io.quarkus.test.junit.QuarkusTest;
import io.quarkus.test.junit.mockito.InjectSpy;
import jakarta.inject.Inject;
import org.junit.jupiter.api.Test;
import java.math.BigInteger;
import java.util.Random;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.when;
@QuarkusTest
class RandomNumberGeneratorImplTest {
@Inject
RandomNumberGeneratorImpl generator;
@InjectSpy
RandomProvider provider;
@Test
void generateWithRandomFromProvider() {
when(provider.get()).thenReturn(getRandom());
var expected = BigInteger.valueOf(366467854850L);
var actual = generator.generate(40);
assertThat(actual)
.as("Generated random number should match expected value")
.isEqualTo(expected);
}
@Test
void generateWithLocalRandom() {
var expected = BigInteger.valueOf(366467854850L);
var random = getRandom();
var actual = generator.generate(40, random);
assertThat(actual)
.as("Generated random number should match expected value")
.isEqualTo(expected);
}
private static Random getRandom() {
return new Random(24353L);
}
}

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quarkus-random-generator/src/test/java/ch/phoenixtechnologies/quarkus/commons/random/RandomProviderImplTest.java Normal file
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package ch.phoenixtechnologies.quarkus.commons.random;
import io.quarkus.test.junit.QuarkusTest;
import jakarta.inject.Inject;
import org.junit.jupiter.api.Test;
import static org.assertj.core.api.Assertions.assertThat;
@QuarkusTest
class RandomProviderImplTest {
@Inject
RandomProviderImpl provider;
@Test
void get() {
assertThat(provider.get())
.as("Random instance should not be null")
.isNotNull();
}
}

48
quarkus-random-generator/src/test/java/ch/phoenixtechnologies/quarkus/commons/random/UUIDGeneratorImplTest.java Normal file
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package ch.phoenixtechnologies.quarkus.commons.random;
import io.quarkus.test.junit.QuarkusTest;
import jakarta.inject.Inject;
import org.junit.jupiter.api.Test;
import java.util.Random;
import java.util.UUID;
import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
@QuarkusTest
class UUIDGeneratorImplTest {
@Inject
UUIDGeneratorImpl generator;
@Test
void generateV4() {
assertThat(generator.generateV4())
.as("Generated UUID should not be null")
.isNotNull();
}
@Test
void generateV4WithLocalRandom() {
var expected = UUID.fromString("b22f5354-f5ed-4f02-bca8-8882a6ec4750");
var actual = generator.generateV4(getRandom());
assertThat(actual)
.as("Generated UUID should match expected value")
.isEqualTo(expected);
}
@Test
void generateV5() {
}
@Test
void generateV5WithNamespace() {
}
private static Random getRandom() {
return new Random(24353L);
}
}