Support Formatter conversion service beans

Update `ConversionServiceDeducer` to also include `Formatter` beans
when they are qualified with `@ConfigurationPropertiesBinding`.

Fixes gh-23576
This commit is contained in:
Phillip Webb 2020-10-07 11:34:57 -07:00
parent 206356728c
commit 1db2f5f960
2 changed files with 58 additions and 5 deletions

View File

@ -30,6 +30,7 @@ import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.GenericConverter;
import org.springframework.format.Formatter;
/**
* Utility to deduce the {@link ConversionService} to use for configuration properties
@ -62,9 +63,13 @@ class ConversionServiceDeducer {
private final List<GenericConverter> genericConverters;
@SuppressWarnings("rawtypes")
private final List<Formatter> formatters;
Factory(BeanFactory beanFactory) {
this.converters = beans(beanFactory, Converter.class, ConfigurationPropertiesBinding.VALUE);
this.genericConverters = beans(beanFactory, GenericConverter.class, ConfigurationPropertiesBinding.VALUE);
this.formatters = beans(beanFactory, Formatter.class, ConfigurationPropertiesBinding.VALUE);
}
private <T> List<T> beans(BeanFactory beanFactory, Class<T> type, String qualifier) {
@ -80,7 +85,7 @@ class ConversionServiceDeducer {
}
public ConversionService create() {
if (this.converters.isEmpty() && this.genericConverters.isEmpty()) {
if (this.converters.isEmpty() && this.genericConverters.isEmpty() && this.formatters.isEmpty()) {
return ApplicationConversionService.getSharedInstance();
}
ApplicationConversionService conversionService = new ApplicationConversionService();
@ -90,6 +95,9 @@ class ConversionServiceDeducer {
for (GenericConverter genericConverter : this.genericConverters) {
conversionService.addConverter(genericConverter);
}
for (Formatter<?> formatter : this.formatters) {
conversionService.addFormatter(formatter);
}
return conversionService;
}

View File

@ -18,12 +18,14 @@ package org.springframework.boot.context.properties;
import java.beans.PropertyEditorSupport;
import java.io.File;
import java.text.ParseException;
import java.time.Duration;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
@ -66,6 +68,7 @@ import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.ProtocolResolver;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.format.Formatter;
import org.springframework.mock.env.MockEnvironment;
import org.springframework.stereotype.Component;
import org.springframework.test.context.support.TestPropertySourceUtils;
@ -597,7 +600,7 @@ public class ConfigurationPropertiesTests {
}
@Test
public void loadShouldUseConfigurationConverter() {
public void loadShouldUseConverterBean() {
prepareConverterContext(ConverterConfiguration.class, PersonProperties.class);
Person person = this.context.getBean(PersonProperties.class).getPerson();
assertThat(person.firstName).isEqualTo("John");
@ -613,13 +616,21 @@ public class ConfigurationPropertiesTests {
}
@Test
public void loadShouldUseGenericConfigurationConverter() {
public void loadShouldUseGenericConverterBean() {
prepareConverterContext(GenericConverterConfiguration.class, PersonProperties.class);
Person person = this.context.getBean(PersonProperties.class).getPerson();
assertThat(person.firstName).isEqualTo("John");
assertThat(person.lastName).isEqualTo("Smith");
}
@Test
public void loadShouldUseFormatterBean() {
prepareConverterContext(FormatterConfiguration.class, PersonProperties.class);
Person person = this.context.getBean(PersonProperties.class).getPerson();
assertThat(person.firstName).isEqualTo("John");
assertThat(person.lastName).isEqualTo("Smith");
}
@Test
public void loadWhenGenericConfigurationConverterIsNotQualifiedShouldNotConvert() {
assertThatExceptionOfType(BeanCreationException.class).isThrownBy(
@ -1043,6 +1054,17 @@ public class ConfigurationPropertiesTests {
}
@Configuration
static class FormatterConfiguration {
@Bean
@ConfigurationPropertiesBinding
Formatter<Person> personFormatter() {
return new PersonFormatter();
}
}
@Configuration
static class NonQualifiedGenericConverterConfiguration {
@ -1731,12 +1753,27 @@ public class ConfigurationPropertiesTests {
}
static class PersonFormatter implements Formatter<Person> {
@Override
public String print(Person person, Locale locale) {
return person.getFirstName() + " " + person.getLastName();
}
@Override
public Person parse(String text, Locale locale) throws ParseException {
String[] content = text.split(" ");
return new Person(content[0], content[1]);
}
}
static class PersonPropertyEditor extends PropertyEditorSupport {
@Override
public void setAsText(String text) throws IllegalArgumentException {
String[] split = text.split(",");
setValue(new Person(split[1], split[0]));
String[] content = text.split(",");
setValue(new Person(content[1], content[0]));
}
}
@ -1752,6 +1789,14 @@ public class ConfigurationPropertiesTests {
this.lastName = lastName;
}
String getFirstName() {
return this.firstName;
}
String getLastName() {
return this.lastName;
}
}
static class Foo {