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Polishing in ExtendedServletRequestDataBinder

This commit is contained in:
rstoyanchev 2025-01-22 11:09:17 +00:00
parent 34d6dd9b62
commit 1cc767e90b
3 changed files with 30 additions and 4 deletions
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5
spring-context/src/main/java/org/springframework/validation/DataBinder.java
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@ -1,5 +1,5 @@
/*
* Copyright 2002-2024 the original author or authors.
* Copyright 2002-2025 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -1412,6 +1412,9 @@ public class DataBinder implements PropertyEditorRegistry, TypeConverter {
/**
* Return the names of all property values.
* <p>Useful for proactive checks whether there are property values nested
* further below the path for a constructor arg. If not then the
* constructor arg can be considered missing and not to be instantiated.
* @since 6.1.2
*/
Set<String> getNames();

12
spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/ExtendedServletRequestDataBinder.java
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@ -125,7 +125,7 @@ public class ExtendedServletRequestDataBinder extends ServletRequestDataBinder {
String name = names.nextElement();
Object value = getHeaderValue(httpRequest, name);
if (value != null) {
name = StringUtils.uncapitalize(name.replace("-", ""));
name = normalizeHeaderName(name);
addValueIfNotPresent(mpvs, "Header", name, value);
}
}
@ -173,6 +173,10 @@ public class ExtendedServletRequestDataBinder extends ServletRequestDataBinder {
return values;
}
private static String normalizeHeaderName(String name) {
return StringUtils.uncapitalize(name.replace("-", ""));
}
/**
* Resolver of values that looks up URI path variables.
@ -209,8 +213,10 @@ public class ExtendedServletRequestDataBinder extends ServletRequestDataBinder {
if (request instanceof HttpServletRequest httpServletRequest) {
Enumeration<String> enumeration = httpServletRequest.getHeaderNames();
while (enumeration.hasMoreElements()) {
String headerName = enumeration.nextElement();
set.add(headerName.replaceAll("-", ""));
String name = enumeration.nextElement();
if (headerPredicate.test(name)) {
set.add(normalizeHeaderName(name));
}
}
}
return set;

17
spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/ExtendedServletRequestDataBinderTests.java
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@ -119,6 +119,23 @@ class ExtendedServletRequestDataBinderTests {
assertThat(mpvs).isEmpty();
}
@Test
void headerPredicateWithConstructorArgs() {
ExtendedServletRequestDataBinder binder = new ExtendedServletRequestDataBinder(null);
binder.addHeaderPredicate(name -> !name.equalsIgnoreCase("Some-Int-Array"));
binder.setTargetType(ResolvableType.forClass(DataBean.class));
binder.setNameResolver(new BindParamNameResolver());
request.addHeader("Some-Int-Array", "1");
request.addHeader("Some-Int-Array", "2");
binder.construct(request);
DataBean bean = (DataBean) binder.getTarget();
assertThat(bean.someIntArray()).isNull();
}
@Test
void headerPredicate() {
TestBinder binder = new TestBinder();