mindol1004/spring-boot-rest
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Changing AutoValue module to Code-Generation

Browse Source
This commit is contained in:
Sjmillington
2019-10-05 15:16:40 +01:00
parent e67c4b3573
commit eeb46ed00a
25 changed files with 6 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
code-generation/README.md Normal file
View File

@@ -0,0 +1,9 @@
## Code Generation
This module contains articles about automatic code generation
### Relevant Articles:
- [Introduction to AutoValue](https://www.baeldung.com/introduction-to-autovalue)
- [Introduction to AutoFactory](https://www.baeldung.com/autofactory)
- [Google AutoService](https://www.baeldung.com/google-autoservice)

53
code-generation/pom.xml Normal file
View File

@@ -0,0 +1,53 @@
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>code-generation</artifactId>
<version>1.0</version>
<name>code-generation</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>com.google.auto.value</groupId>
<artifactId>auto-value</artifactId>
<version>${auto-value.version}</version>
</dependency>
<dependency>
<groupId>com.google.auto.factory</groupId>
<artifactId>auto-factory</artifactId>
<version>${auto-factory.version}</version>
<exclusions>
<exclusion>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.google.auto.service</groupId>
<artifactId>auto-service</artifactId>
<version>${auto-service.version}</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.google.inject</groupId>
<artifactId>guice</artifactId>
<version>${guice.version}</version>
</dependency>
</dependencies>
<properties>
<auto-value.version>1.3</auto-value.version>
<auto-factory.version>1.0-beta5</auto-factory.version>
<auto-service.version>1.0-rc5</auto-service.version>
<guice.version>4.2.0</guice.version>
</properties>
</project>

21
code-generation/src/main/java/com/baeldung/autofactory/App.java Normal file
View File

@@ -0,0 +1,21 @@
package com.baeldung.autofactory;
import com.baeldung.autofactory.model.Camera;
import com.baeldung.autofactory.model.Phone;
import com.baeldung.autofactory.model.PhoneFactory;
import com.baeldung.autofactory.modules.SonyCameraModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
public class App {
public static void main(String[] args) {
PhoneFactory phoneFactory = new PhoneFactory(() -> new Camera("Unknown", "XXX"));
Phone simplePhone = phoneFactory.create("other parts");
Injector injector = Guice.createInjector(new SonyCameraModule());
PhoneFactory injectedFactory = injector.getInstance(PhoneFactory.class);
Phone xperia = injectedFactory.create("Xperia");
}
}

12
code-generation/src/main/java/com/baeldung/autofactory/CustomStorage.java Normal file
View File

@@ -0,0 +1,12 @@
package com.baeldung.autofactory;
import com.baeldung.autofactory.custom.SmartPhone;
/**
* @author aiet
*/
public interface CustomStorage {
SmartPhone customROMInGB(int romSize);
}

10
code-generation/src/main/java/com/baeldung/autofactory/custom/AbstractFactory.java Normal file
View File

@@ -0,0 +1,10 @@
package com.baeldung.autofactory.custom;
/**
* @author aiet
*/
public abstract class AbstractFactory {
abstract CustomPhone newInstance(String brand);
}

16
code-generation/src/main/java/com/baeldung/autofactory/custom/CustomPhone.java Normal file
View File

@@ -0,0 +1,16 @@
package com.baeldung.autofactory.custom;
import com.google.auto.factory.AutoFactory;
/**
* @author aiet
*/
@AutoFactory(extending = AbstractFactory.class)
public class CustomPhone {
private final String brand;
public CustomPhone(String brand) {
this.brand = brand;
}
}

18
code-generation/src/main/java/com/baeldung/autofactory/custom/SmartPhone.java Normal file
View File

@@ -0,0 +1,18 @@
package com.baeldung.autofactory.custom;
import com.baeldung.autofactory.CustomStorage;
import com.google.auto.factory.AutoFactory;
/**
* @author aiet
*/
@AutoFactory(className = "SamsungFactory", allowSubclasses = true, implementing = CustomStorage.class)
public class SmartPhone {
private int romSize;
public SmartPhone(int romSize) {
this.romSize = romSize;
}
}

24
code-generation/src/main/java/com/baeldung/autofactory/model/Camera.java Normal file
View File

@@ -0,0 +1,24 @@
package com.baeldung.autofactory.model;
/**
* @author aiet
*/
public class Camera {
private final String manufacturer;
private final String serial;
public Camera(String manufacturer, String serial) {
this.manufacturer = manufacturer;
this.serial = serial;
}
public String getManufacturer() {
return manufacturer;
}
public String getSerial() {
return serial;
}
}

38
code-generation/src/main/java/com/baeldung/autofactory/model/ClassicPhone.java Normal file
View File

@@ -0,0 +1,38 @@
package com.baeldung.autofactory.model;
import com.google.auto.factory.AutoFactory;
import com.google.auto.factory.Provided;
/**
* @author aiet
*/
public class ClassicPhone {
private final String dialpad;
private final String ringer;
private String otherParts;
@AutoFactory
public ClassicPhone(@Provided String dialpad, @Provided String ringer) {
this.dialpad = dialpad;
this.ringer = ringer;
}
@AutoFactory
public ClassicPhone(String otherParts) {
this("defaultDialPad", "defaultRinger");
this.otherParts = otherParts;
}
public String getDialpad() {
return dialpad;
}
public String getRinger() {
return ringer;
}
public String getOtherParts() {
return otherParts;
}
}

34
code-generation/src/main/java/com/baeldung/autofactory/model/Phone.java Normal file
View File

@@ -0,0 +1,34 @@
package com.baeldung.autofactory.model;
import com.google.auto.factory.AutoFactory;
import com.google.auto.factory.Provided;
import javax.inject.Named;
/**
* @author aiet
*/
@AutoFactory
public class Phone {
private Camera camera;
private String otherParts;
public Phone(@Provided @Named("Sony") Camera camera, String otherParts) {
this.camera = camera;
this.otherParts = otherParts;
}
/* required when used as a base class for AutoFactory */
public Phone() {
}
public Camera getCamera() {
return camera;
}
public String getOtherParts() {
return otherParts;
}
}

22
code-generation/src/main/java/com/baeldung/autofactory/modules/SonyCameraModule.java Normal file
View File

@@ -0,0 +1,22 @@
package com.baeldung.autofactory.modules;
import com.baeldung.autofactory.model.Camera;
import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import javax.inject.Named;
/**
* @author aiet
*/
public class SonyCameraModule extends AbstractModule {
private static int SONY_CAMERA_SERIAL = 1;
@Named("Sony")
@Provides
Camera cameraProvider() {
return new Camera("Sony", String.format("%03d", SONY_CAMERA_SERIAL++));
}
}

23
code-generation/src/main/java/com/baeldung/autofactory/provided/IntermediateAssembler.java Normal file
View File

@@ -0,0 +1,23 @@
package com.baeldung.autofactory.provided;
import com.baeldung.autofactory.model.Camera;
import com.google.auto.factory.AutoFactory;
import com.google.auto.factory.Provided;
import javax.inject.Provider;
/**
* @author aiet
*/
@AutoFactory
public class IntermediateAssembler {
private final Provider<Camera> camera;
private final String otherParts;
public IntermediateAssembler(@Provided Provider<Camera> camera, String otherParts) {
this.camera = camera;
this.otherParts = otherParts;
}
}

18
code-generation/src/main/java/com/baeldung/autofactory/provider/SonyCameraProvider.java Normal file
View File

@@ -0,0 +1,18 @@
package com.baeldung.autofactory.provider;
import com.baeldung.autofactory.model.Camera;
import com.google.inject.Provider;
/**
* @author aiet
*/
public class SonyCameraProvider implements Provider<Camera> {
private static int sonyCameraSerial = 1;
@Override
public Camera get() {
return new Camera("Sony", String.format("%03d", sonyCameraSerial++));
}
}

14
code-generation/src/main/java/com/baeldung/autoservice/BingTranslationServiceProvider.java Normal file
View File

@@ -0,0 +1,14 @@
package com.baeldung.autoservice;
import com.google.auto.service.AutoService;
import java.util.Locale;
@AutoService(TranslationService.class)
public class BingTranslationServiceProvider implements TranslationService {
@Override
public String translate(String message, Locale from, Locale to) {
// implementation details
return message + " (translated by Bing)";
}
}

14
code-generation/src/main/java/com/baeldung/autoservice/GoogleTranslationServiceProvider.java Normal file
View File

@@ -0,0 +1,14 @@
package com.baeldung.autoservice;
import com.google.auto.service.AutoService;
import java.util.Locale;
@AutoService(TranslationService.class)
public class GoogleTranslationServiceProvider implements TranslationService {
@Override
public String translate(String message, Locale from, Locale to) {
// implementation details
return message + " (translated by Google)";
}
}

7
code-generation/src/main/java/com/baeldung/autoservice/TranslationService.java Normal file
View File

@@ -0,0 +1,7 @@
package com.baeldung.autoservice;
import java.util.Locale;
public interface TranslationService {
String translate(String message, Locale from, Locale to);
}

15
code-generation/src/main/java/com/baeldung/autovalue/AutoValueMoney.java Normal file
View File

@@ -0,0 +1,15 @@
package com.baeldung.autovalue;
import com.google.auto.value.AutoValue;
@AutoValue
public abstract class AutoValueMoney {
public abstract String getCurrency();
public abstract long getAmount();
public static AutoValueMoney create(String currency, long amount) {
return new AutoValue_AutoValueMoney(currency, amount);
}
}

23
code-generation/src/main/java/com/baeldung/autovalue/AutoValueMoneyWithBuilder.java Normal file
View File

@@ -0,0 +1,23 @@
package com.baeldung.autovalue;
import com.google.auto.value.AutoValue;
@AutoValue
public abstract class AutoValueMoneyWithBuilder {
public abstract String getCurrency();
public abstract long getAmount();
static Builder builder() {
return new AutoValue_AutoValueMoneyWithBuilder.Builder();
}
@AutoValue.Builder
abstract static class Builder {
abstract Builder setCurrency(String currency);
abstract Builder setAmount(long amount);
abstract AutoValueMoneyWithBuilder build();
}
}

51
code-generation/src/main/java/com/baeldung/autovalue/Foo.java Normal file
View File

@@ -0,0 +1,51 @@
package com.baeldung.autovalue;
import java.util.Objects;
public final class Foo {
private final String text;
private final int number;
public Foo(String text, int number) {
this.text = text;
this.number = number;
}
public String getText() {
return text;
}
public int getNumber() {
return number;
}
@Override
public int hashCode() {
return Objects.hash(text, number);
}
@Override
public String toString() {
return "Foo [text=" + text + ", number=" + number + "]";
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Foo other = (Foo) obj;
if (number != other.number)
return false;
if (text == null) {
if (other.text != null)
return false;
} else if (!text.equals(other.text))
return false;
return true;
}
}

53
code-generation/src/main/java/com/baeldung/autovalue/ImmutableMoney.java Normal file
View File

@@ -0,0 +1,53 @@
package com.baeldung.autovalue;
public final class ImmutableMoney {
private final long amount;
private final String currency;
public ImmutableMoney(long amount, String currency) {
this.amount = amount;
this.currency = currency;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (int) (amount ^ (amount >>> 32));
result = prime * result + ((currency == null) ? 0 : currency.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
ImmutableMoney other = (ImmutableMoney) obj;
if (amount != other.amount)
return false;
if (currency == null) {
if (other.currency != null)
return false;
} else if (!currency.equals(other.currency))
return false;
return true;
}
public long getAmount() {
return amount;
}
public String getCurrency() {
return currency;
}
@Override
public String toString() {
return "ImmutableMoney [amount=" + amount + ", currency=" + currency + "]";
}
}

34
code-generation/src/main/java/com/baeldung/autovalue/MutableMoney.java Normal file
View File

@@ -0,0 +1,34 @@
package com.baeldung.autovalue;
public class MutableMoney {
@Override
public String toString() {
return "MutableMoney [amount=" + amount + ", currency=" + currency + "]";
}
public long getAmount() {
return amount;
}
public void setAmount(long amount) {
this.amount = amount;
}
public String getCurrency() {
return currency;
}
public void setCurrency(String currency) {
this.currency = currency;
}
private long amount;
private String currency;
public MutableMoney(long amount, String currency) {
super();
this.amount = amount;
this.currency = currency;
}
}

13
code-generation/src/main/resources/logback.xml Normal file
View File

@@ -0,0 +1,13 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>

37
code-generation/src/test/java/com/baeldung/autoservice/TranslationServiceUnitTest.java Normal file
View File

@@ -0,0 +1,37 @@
package com.baeldung.autoservice;
import com.baeldung.autoservice.TranslationService;
import org.junit.Before;
import org.junit.Test;
import java.util.ServiceLoader;
import java.util.stream.StreamSupport;
import static org.junit.Assert.assertEquals;
public class TranslationServiceUnitTest {
private ServiceLoader<TranslationService> loader;
@Before
public void setUp() {
loader = ServiceLoader.load(TranslationService.class);
}
@Test
public void whenServiceLoaderLoads_thenLoadsAllProviders() {
long count = StreamSupport.stream(loader.spliterator(), false).count();
assertEquals(2, count);
}
@Test
public void whenServiceLoaderLoadsGoogleService_thenGoogleIsLoaded() {
TranslationService googleService = StreamSupport.stream(loader.spliterator(), false)
.filter(p -> p.getClass().getSimpleName().equals("GoogleTranslationServiceProvider"))
.findFirst()
.get();
String message = "message";
assertEquals(message + " (translated by Google)", googleService.translate(message, null, null));
}
}

63
code-generation/src/test/java/com/baeldung/autovalue/MoneyUnitTest.java Normal file
View File

@@ -0,0 +1,63 @@
package com.baeldung.autovalue;
import static org.junit.Assert.*;
import org.junit.Test;
public class MoneyUnitTest {
@Test
public void givenTwoSameValueMoneyObjects_whenEqualityTestFails_thenCorrect() {
MutableMoney m1 = new MutableMoney(10000, "USD");
MutableMoney m2 = new MutableMoney(10000, "USD");
assertFalse(m1.equals(m2));
}
@Test
public void givenTwoSameValueMoneyValueObjects_whenEqualityTestPasses_thenCorrect() {
ImmutableMoney m1 = new ImmutableMoney(10000, "USD");
ImmutableMoney m2 = new ImmutableMoney(10000, "USD");
assertTrue(m1.equals(m2));
}
@Test
public void givenValueTypeWithAutoValue_whenFieldsCorrectlySet_thenCorrect() {
AutoValueMoney m = AutoValueMoney.create("USD", 10000);
assertEquals(m.getAmount(), 10000);
assertEquals(m.getCurrency(), "USD");
}
@Test
public void given2EqualValueTypesWithAutoValue_whenEqual_thenCorrect() {
AutoValueMoney m1 = AutoValueMoney.create("USD", 5000);
AutoValueMoney m2 = AutoValueMoney.create("USD", 5000);
assertTrue(m1.equals(m2));
}
@Test
public void given2DifferentValueTypesWithAutoValue_whenNotEqual_thenCorrect() {
AutoValueMoney m1 = AutoValueMoney.create("GBP", 5000);
AutoValueMoney m2 = AutoValueMoney.create("USD", 5000);
assertFalse(m1.equals(m2));
}
@Test
public void given2EqualValueTypesWithBuilder_whenEqual_thenCorrect() {
AutoValueMoneyWithBuilder m1 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
AutoValueMoneyWithBuilder m2 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
assertTrue(m1.equals(m2));
}
@Test
public void given2DifferentValueTypesBuilder_whenNotEqual_thenCorrect() {
AutoValueMoneyWithBuilder m1 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
AutoValueMoneyWithBuilder m2 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("GBP").build();
assertFalse(m1.equals(m2));
}
@Test
public void givenValueTypeWithBuilder_whenFieldsCorrectlySet_thenCorrect() {
AutoValueMoneyWithBuilder m = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
assertEquals(m.getAmount(), 5000);
assertEquals(m.getCurrency(), "USD");
}
}