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Merge pull request #14 from dmham86/multiple-conversion-service-beans
Add ability to specify conversion service bean name
2 parents 04c6bcd + a711152 commit 74cd7d3

14 files changed

Lines changed: 284 additions & 4 deletions

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‎annotations/src/main/java/org/mapstruct/extensions/spring/SpringMapperConfig.java‎

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* @return The class name for the generated Adapter.
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*/
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String conversionServiceAdapterClassName() default "ConversionServiceAdapter";
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/**
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* The bean name for the Spring {@link org.springframework.core.convert.ConversionService} to use.
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*
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* @return The bean name for the Spring {@link org.springframework.core.convert.ConversionService}.
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*/
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String conversionServiceBeanName() default "";
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}

‎docs/src/docs/asciidoc/chapter-3-mapper-as-converter.asciidoc‎

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}
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----
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====
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[[customConversionService]]
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=== Specifying The Conversion Service Bean Name
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If your application has multiple `ConversionService` beans, you will need to specify the bean name. The `SpringMapperConfig` allows you to specify it using the `conversionServiceBeanName` property.
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====
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[source, java, linenums]
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[subs="verbatim,attributes"]
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----
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import org.mapstruct.MapperConfig;
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import org.mapstruct.extensions.spring.SpringMapperConfig;
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@MapperConfig(componentModel = "spring", uses = ConversionServiceAdapter.class)
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@SpringMapperConfig(conversionServiceBeanName = "myConversionService")
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public interface MapperSpringConfig {
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}
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----
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====

‎examples/custom-conversion-service-bean/build.gradle‎

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dependencies {
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annotationProcessor project(":extensions")
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implementation project(":examples:model")
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implementation project(":annotations")
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// This dependency is used internally, and not exposed to consumers on their own compile classpath.
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compileOnly 'javax.annotation:jsr250-api:1.0'
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implementation 'org.mapstruct:mapstruct:1.4.0.Final'
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annotationProcessor 'org.mapstruct:mapstruct-processor:1.4.0.Final'
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implementation 'org.springframework:spring-core:5.0.0.RELEASE'
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implementation 'org.springframework:spring-context:5.0.0.RELEASE'
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testImplementation 'org.springframework:spring-test:5.0.0.RELEASE'
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testImplementation 'org.assertj:assertj-core:3.15.0'
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}

‎examples/custom-conversion-service-bean/src/main/java/org/mapstruct/extensions/spring/example/custombean/CarMapper.java‎

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package org.mapstruct.extensions.spring.example.custombean;
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import org.mapstruct.Mapper;
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import org.mapstruct.Mapping;
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import org.springframework.core.convert.converter.Converter;
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import org.mapstruct.extensions.spring.example.Car;
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import org.mapstruct.extensions.spring.example.CarDto;
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@Mapper(config = MapperSpringConfig.class)
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public interface CarMapper extends Converter<Car, CarDto> {
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@Mapping(target = "seats", source = "seatConfiguration")
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CarDto convert(Car car);
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}

‎examples/custom-conversion-service-bean/src/main/java/org/mapstruct/extensions/spring/example/custombean/MapperSpringConfig.java‎

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package org.mapstruct.extensions.spring.example.custombean;
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import org.mapstruct.MapperConfig;
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import org.mapstruct.extensions.spring.SpringMapperConfig;
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@MapperConfig(componentModel = "spring", uses = ConversionServiceAdapter.class)
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@SpringMapperConfig(conversionServiceBeanName = "myConversionService")
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public interface MapperSpringConfig {
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}

‎examples/custom-conversion-service-bean/src/main/java/org/mapstruct/extensions/spring/example/custombean/SeatConfigurationMapper.java‎

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package org.mapstruct.extensions.spring.example.custombean;
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import org.mapstruct.Mapper;
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import org.mapstruct.Mapping;
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import org.springframework.core.convert.converter.Converter;
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import org.mapstruct.extensions.spring.example.SeatConfiguration;
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import org.mapstruct.extensions.spring.example.SeatConfigurationDto;
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@Mapper(config = MapperSpringConfig.class)
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public interface SeatConfigurationMapper extends Converter<SeatConfiguration, SeatConfigurationDto> {
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@Mapping(target = "seatCount", source = "numberOfSeats")
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@Mapping(target = "material", source = "seatMaterial")
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SeatConfigurationDto convert(SeatConfiguration seatConfiguration);
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}

‎examples/custom-conversion-service-bean/src/test/java/org/mapstruct/extensions/spring/example/ConversionServiceAdapterIntegrationTest.java‎

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package org.mapstruct.extensions.spring.example;
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import static org.assertj.core.api.BDDAssertions.then;
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import static org.mapstruct.extensions.spring.example.CarType.OTHER;
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import static org.mapstruct.extensions.spring.example.SeatMaterial.LEATHER;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Qualifier;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.core.convert.support.ConfigurableConversionService;
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import org.springframework.core.convert.support.DefaultConversionService;
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import org.springframework.stereotype.Component;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.context.junit.jupiter.SpringExtension;
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import org.mapstruct.extensions.spring.example.custombean.CarMapper;
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import org.mapstruct.extensions.spring.example.custombean.SeatConfigurationMapper;
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@ExtendWith(SpringExtension.class)
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@ContextConfiguration(
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classes = {ConversionServiceAdapterIntegrationTest.AdditionalBeanConfiguration.class})
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public class ConversionServiceAdapterIntegrationTest {
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private static final String TEST_MAKE = "Volvo";
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private static final CarType TEST_CAR_TYPE = OTHER;
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protected static final int TEST_NUMBER_OF_SEATS = 5;
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protected static final SeatMaterial TEST_SEAT_MATERIAL = LEATHER;
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@Autowired private CarMapper carMapper;
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@Autowired private SeatConfigurationMapper seatConfigurationMapper;
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@Autowired @Qualifier("myConversionService")
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private ConfigurableConversionService conversionService;
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@ComponentScan("org.mapstruct.extensions.spring")
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@Component
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static class AdditionalBeanConfiguration {
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@Bean
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ConfigurableConversionService getConversionService() {
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return new DefaultConversionService();
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}
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@Bean
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ConfigurableConversionService myConversionService() {
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return new DefaultConversionService();
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}
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}
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@BeforeEach
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void addMappersToConversionService() {
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conversionService.addConverter(carMapper);
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conversionService.addConverter(seatConfigurationMapper);
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}
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@Test
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void shouldKnowAllMappers() {
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then(conversionService.canConvert(Car.class, CarDto.class)).isTrue();
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then(conversionService.canConvert(SeatConfiguration.class, SeatConfigurationDto.class))
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.isTrue();
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}
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@Test
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void shouldMapAllAttributes() {
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// Given
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final Car car = new Car();
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car.setMake(TEST_MAKE);
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car.setType(TEST_CAR_TYPE);
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final SeatConfiguration seatConfiguration = new SeatConfiguration();
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seatConfiguration.setSeatMaterial(TEST_SEAT_MATERIAL);
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seatConfiguration.setNumberOfSeats(TEST_NUMBER_OF_SEATS);
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car.setSeatConfiguration(seatConfiguration);
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// When
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final CarDto mappedCar = conversionService.convert(car, CarDto.class);
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// Then
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then(mappedCar).isNotNull();
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then(mappedCar.getMake()).isEqualTo(TEST_MAKE);
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then(mappedCar.getType()).isEqualTo(String.valueOf(TEST_CAR_TYPE));
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final SeatConfigurationDto mappedCarSeats = mappedCar.getSeats();
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then(mappedCarSeats).isNotNull();
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then(mappedCarSeats.getSeatCount()).isEqualTo(TEST_NUMBER_OF_SEATS);
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then(mappedCarSeats.getMaterial()).isEqualTo(String.valueOf(TEST_SEAT_MATERIAL));
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}
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}

‎extensions/src/main/java/org/mapstruct/extensions/spring/converter/ConversionServiceAdapterDescriptor.java‎

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public class ConversionServiceAdapterDescriptor {
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private ClassName adapterClassName;
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private String conversionServiceBeanName;
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private List<Pair<ClassName, ClassName>> fromToMappings;
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public ClassName getAdapterClassName() {
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this.adapterClassName = adapterClassName;
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}
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public String getConversionServiceBeanName() {
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return conversionServiceBeanName;
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}
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public void setConversionServiceBeanName(String conversionServiceBeanName) {
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this.conversionServiceBeanName = conversionServiceBeanName;
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}
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public List<Pair<ClassName, ClassName>> getFromToMappings() {
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return fromToMappings;
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}

‎extensions/src/main/java/org/mapstruct/extensions/spring/converter/ConversionServiceAdapterGenerator.java‎

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import static javax.lang.model.element.Modifier.*;
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import com.squareup.javapoet.*;
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import org.apache.commons.lang3.StringUtils;
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import java.io.IOException;
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import java.io.UncheckedIOException;
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import java.io.Writer;
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import java.time.Clock;
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import java.time.ZonedDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.ArrayList;
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import java.util.List;
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public class ConversionServiceAdapterGenerator {
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private final Clock clock;
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private TypeSpec createConversionServiceTypeSpec(
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final ConversionServiceAdapterDescriptor descriptor) {
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final FieldSpec injectedConversionServiceFieldSpec = buildInjectedConversionServiceFieldSpec();
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final FieldSpec injectedConversionServiceFieldSpec = buildInjectedConversionServiceFieldSpec(descriptor);
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return TypeSpec.classBuilder(descriptor.getAdapterClassName())
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.addModifiers(PUBLIC)
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.addAnnotation(buildGeneratedAnnotationSpec())
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return ParameterSpec.builder(sourceClassName, "source", FINAL).build();
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}
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private static FieldSpec buildInjectedConversionServiceFieldSpec() {
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private static FieldSpec buildInjectedConversionServiceFieldSpec(ConversionServiceAdapterDescriptor descriptor) {
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List<AnnotationSpec> annotations = new ArrayList<>();
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annotations.add(AnnotationSpec.builder(ClassName
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.get("org.springframework.beans.factory.annotation", "Autowired"))
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.build());
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if (StringUtils.isNotEmpty(descriptor.getConversionServiceBeanName())) {
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annotations.add(AnnotationSpec
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.builder(ClassName.get("org.springframework.beans.factory.annotation", "Qualifier"))
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.addMember("value", "$S", descriptor.getConversionServiceBeanName())
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.build());
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}
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return FieldSpec.builder(ClassName.get("org.springframework.core.convert","ConversionService"),
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"conversionService", PRIVATE)
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.addAnnotation(ClassName.get("org.springframework.beans.factory.annotation", "Autowired"))
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.addAnnotations(annotations)
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.build();
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}
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‎extensions/src/main/java/org/mapstruct/extensions/spring/converter/ConverterMapperProcessor.java‎

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import java.util.Objects;
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import java.util.Optional;
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import java.util.Set;
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import java.util.concurrent.atomic.AtomicReference;
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import javax.annotation.processing.AbstractProcessor;
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import javax.annotation.processing.RoundEnvironment;
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import javax.annotation.processing.SupportedAnnotationTypes;
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getAdapterPackageAndClassName(annotations, roundEnv);
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descriptor.setAdapterClassName(
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ClassName.get(adapterPackageAndClass.getLeft(), adapterPackageAndClass.getRight()));
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descriptor.setConversionServiceBeanName(getConversionServiceName(annotations, roundEnv));
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annotations.stream()
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.filter(annotation -> MAPPER.contentEquals(annotation.getQualifiedName()))
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.forEach(
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adapterPackageAndClass.setRight(springMapperConfig.conversionServiceAdapterClassName());
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}
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private String getConversionServiceName(
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final Set<? extends TypeElement> annotations, final RoundEnvironment roundEnv) {
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AtomicReference<String> beanName = new AtomicReference<>();
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for (final TypeElement annotation : annotations) {
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if (SPRING_MAPPER_CONFIG.contentEquals(annotation.getQualifiedName())) {
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roundEnv
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.getElementsAnnotatedWith(annotation)
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.stream().findFirst()
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.ifPresent(element -> {
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final SpringMapperConfig springMapperConfig = element.getAnnotation(SpringMapperConfig.class);
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beanName.set(springMapperConfig.conversionServiceBeanName());
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});
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}
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}
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return beanName.get();
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}
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private Optional<? extends TypeMirror> getConverterSupertype(final Element mapper) {
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final Types typeUtils = processingEnv.getTypeUtils();
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return typeUtils.directSupertypes(mapper.asType()).stream()

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