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Polish Binder code

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This commit is contained in:
Phillip Webb 2023-12-05 14:06:46 -08:00
parent 4fb68d4e23
commit 6b58051aad
2 changed files with 17 additions and 22 deletions
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35
spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/bind/Binder.java
View File

@ -25,8 +25,10 @@ import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import org.springframework.beans.PropertyEditorRegistry;
@ -360,7 +362,8 @@ public class Binder {
result = context.getConverter().convert(result, target);
}
if (result == null && create) {
result = create(target, context);
result = fromDataObjectBinders(target.getBindMethod(),
(dataObjectBinder) -> dataObjectBinder.create(target, context));
result = handler.onCreate(name, target, context, result);
result = context.getConverter().convert(result, target);
Assert.state(result != null, () -> "Unable to create instance for " + target.getType());
@ -369,16 +372,6 @@ public class Binder {
return context.getConverter().convert(result, target);
}
private Object create(Bindable<?> target, Context context) {
for (DataObjectBinder dataObjectBinder : this.dataObjectBinders.get(target.getBindMethod())) {
Object instance = dataObjectBinder.create(target, context);
if (instance != null) {
return instance;
}
}
return null;
}
private <T> T handleBindError(ConfigurationPropertyName name, Bindable<T> target, BindHandler handler,
Context context, Exception error) {
try {
@ -477,15 +470,17 @@ public class Binder {
}
DataObjectPropertyBinder propertyBinder = (propertyName, propertyTarget) -> bind(name.append(propertyName),
propertyTarget, handler, context, false, false);
return context.withDataObject(type, () -> {
for (DataObjectBinder dataObjectBinder : this.dataObjectBinders.get(bindMethod)) {
Object instance = dataObjectBinder.bind(name, target, context, propertyBinder);
if (instance != null) {
return instance;
}
}
return null;
});
return context.withDataObject(type, () -> fromDataObjectBinders(bindMethod,
(dataObjectBinder) -> dataObjectBinder.bind(name, target, context, propertyBinder)));
}
private Object fromDataObjectBinders(BindMethod bindMethod, Function<DataObjectBinder, Object> operation) {
return this.dataObjectBinders.get(bindMethod)
.stream()
.map(operation)
.filter(Objects::nonNull)
.findFirst()
.orElse(null);
}
private boolean isUnbindableBean(ConfigurationPropertyName name, Bindable<?> target, Context context) {

4
spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/bind/DataObjectBinder.java
View File

@ -33,11 +33,11 @@ interface DataObjectBinder {
/**
* Return a bound instance or {@code null} if the {@link DataObjectBinder} does not
* support the specified {@link Bindable}.
* @param <T> the source type
* @param name the name being bound
* @param target the bindable to bind
* @param context the bind context
* @param propertyBinder property binder
* @param <T> the source type
* @return a bound instance or {@code null}
*/
<T> T bind(ConfigurationPropertyName name, Bindable<T> target, Context context,
@ -46,9 +46,9 @@ interface DataObjectBinder {
/**
* Return a newly created instance or {@code null} if the {@link DataObjectBinder}
* does not support the specified {@link Bindable}.
* @param <T> the source type
* @param target the bindable to create
* @param context the bind context
* @param <T> the source type
* @return the created instance
*/
<T> T create(Bindable<T> target, Context context);