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Support Formatter conversion service beans
Update `ConversionServiceDeducer` to also include `Formatter` beans when they are qualified with `@ConfigurationPropertiesBinding`. Fixes gh-23576
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@ -30,6 +30,7 @@ import org.springframework.context.ConfigurableApplicationContext;
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import org.springframework.core.convert.ConversionService;
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import org.springframework.core.convert.converter.Converter;
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import org.springframework.core.convert.converter.GenericConverter;
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import org.springframework.format.Formatter;
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/**
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* Utility to deduce the {@link ConversionService} to use for configuration properties
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@ -62,9 +63,13 @@ class ConversionServiceDeducer {
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private final List<GenericConverter> genericConverters;
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@SuppressWarnings("rawtypes")
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private final List<Formatter> formatters;
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Factory(BeanFactory beanFactory) {
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this.converters = beans(beanFactory, Converter.class, ConfigurationPropertiesBinding.VALUE);
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this.genericConverters = beans(beanFactory, GenericConverter.class, ConfigurationPropertiesBinding.VALUE);
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this.formatters = beans(beanFactory, Formatter.class, ConfigurationPropertiesBinding.VALUE);
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}
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private <T> List<T> beans(BeanFactory beanFactory, Class<T> type, String qualifier) {
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@ -80,7 +85,7 @@ class ConversionServiceDeducer {
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}
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public ConversionService create() {
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if (this.converters.isEmpty() && this.genericConverters.isEmpty()) {
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if (this.converters.isEmpty() && this.genericConverters.isEmpty() && this.formatters.isEmpty()) {
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return ApplicationConversionService.getSharedInstance();
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}
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ApplicationConversionService conversionService = new ApplicationConversionService();
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@ -90,6 +95,9 @@ class ConversionServiceDeducer {
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for (GenericConverter genericConverter : this.genericConverters) {
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conversionService.addConverter(genericConverter);
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}
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for (Formatter<?> formatter : this.formatters) {
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conversionService.addFormatter(formatter);
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}
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return conversionService;
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}
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@ -18,12 +18,14 @@ package org.springframework.boot.context.properties;
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import java.beans.PropertyEditorSupport;
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import java.io.File;
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import java.text.ParseException;
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import java.time.Duration;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.Properties;
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import java.util.Set;
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@ -66,6 +68,7 @@ import org.springframework.core.io.ClassPathResource;
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import org.springframework.core.io.ProtocolResolver;
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import org.springframework.core.io.Resource;
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import org.springframework.core.io.ResourceLoader;
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import org.springframework.format.Formatter;
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import org.springframework.mock.env.MockEnvironment;
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import org.springframework.stereotype.Component;
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import org.springframework.test.context.support.TestPropertySourceUtils;
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@ -597,7 +600,7 @@ public class ConfigurationPropertiesTests {
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}
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@Test
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public void loadShouldUseConfigurationConverter() {
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public void loadShouldUseConverterBean() {
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prepareConverterContext(ConverterConfiguration.class, PersonProperties.class);
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Person person = this.context.getBean(PersonProperties.class).getPerson();
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assertThat(person.firstName).isEqualTo("John");
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@ -613,13 +616,21 @@ public class ConfigurationPropertiesTests {
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}
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@Test
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public void loadShouldUseGenericConfigurationConverter() {
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public void loadShouldUseGenericConverterBean() {
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prepareConverterContext(GenericConverterConfiguration.class, PersonProperties.class);
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Person person = this.context.getBean(PersonProperties.class).getPerson();
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assertThat(person.firstName).isEqualTo("John");
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assertThat(person.lastName).isEqualTo("Smith");
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}
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@Test
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public void loadShouldUseFormatterBean() {
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prepareConverterContext(FormatterConfiguration.class, PersonProperties.class);
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Person person = this.context.getBean(PersonProperties.class).getPerson();
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assertThat(person.firstName).isEqualTo("John");
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assertThat(person.lastName).isEqualTo("Smith");
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}
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@Test
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public void loadWhenGenericConfigurationConverterIsNotQualifiedShouldNotConvert() {
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assertThatExceptionOfType(BeanCreationException.class).isThrownBy(
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@ -1043,6 +1054,17 @@ public class ConfigurationPropertiesTests {
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}
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@Configuration
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static class FormatterConfiguration {
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@Bean
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@ConfigurationPropertiesBinding
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Formatter<Person> personFormatter() {
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return new PersonFormatter();
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}
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}
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@Configuration
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static class NonQualifiedGenericConverterConfiguration {
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@ -1731,12 +1753,27 @@ public class ConfigurationPropertiesTests {
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}
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static class PersonFormatter implements Formatter<Person> {
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@Override
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public String print(Person person, Locale locale) {
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return person.getFirstName() + " " + person.getLastName();
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}
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@Override
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public Person parse(String text, Locale locale) throws ParseException {
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String[] content = text.split(" ");
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return new Person(content[0], content[1]);
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}
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}
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static class PersonPropertyEditor extends PropertyEditorSupport {
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@Override
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public void setAsText(String text) throws IllegalArgumentException {
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String[] split = text.split(",");
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setValue(new Person(split[1], split[0]));
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String[] content = text.split(",");
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setValue(new Person(content[1], content[0]));
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}
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}
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@ -1752,6 +1789,14 @@ public class ConfigurationPropertiesTests {
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this.lastName = lastName;
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}
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String getFirstName() {
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return this.firstName;
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}
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String getLastName() {
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return this.lastName;
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}
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}
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static class Foo {
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