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Direct reference to PushBuilder API on Servlet 5.0 baseline

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See gh-29435
This commit is contained in:
Juergen Hoeller
2024-02-28 19:14:30 +01:00
parent d1b3107398
commit b44ef70bc3
1 changed files with 9 additions and 38 deletions
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47
spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/ServletRequestMethodArgumentResolver.java
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@@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2020 the original author or authors. * Copyright 2002-2024 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@@ -32,7 +32,6 @@ import jakarta.servlet.http.PushBuilder;
import org.springframework.core.MethodParameter; import org.springframework.core.MethodParameter;
import org.springframework.http.HttpMethod; import org.springframework.http.HttpMethod;
import org.springframework.lang.Nullable; import org.springframework.lang.Nullable;
import org.springframework.util.ClassUtils;
import org.springframework.web.bind.support.WebDataBinderFactory; import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest; import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.context.request.WebRequest; import org.springframework.web.context.request.WebRequest;
@@ -68,21 +67,6 @@ import org.springframework.web.servlet.support.RequestContextUtils;
*/ */
public class ServletRequestMethodArgumentResolver implements HandlerMethodArgumentResolver { public class ServletRequestMethodArgumentResolver implements HandlerMethodArgumentResolver {
@Nullable
private static Class<?> pushBuilder;
static {
try {
pushBuilder = ClassUtils.forName("jakarta.servlet.http.PushBuilder",
ServletRequestMethodArgumentResolver.class.getClassLoader());
}
catch (ClassNotFoundException ex) {
// Servlet 4.0 PushBuilder not found - not supported for injection
pushBuilder = null;
}
}
@Override @Override
public boolean supportsParameter(MethodParameter parameter) { public boolean supportsParameter(MethodParameter parameter) {
Class<?> paramType = parameter.getParameterType(); Class<?> paramType = parameter.getParameterType();
@@ -90,7 +74,7 @@ public class ServletRequestMethodArgumentResolver implements HandlerMethodArgume
ServletRequest.class.isAssignableFrom(paramType) || ServletRequest.class.isAssignableFrom(paramType) ||
MultipartRequest.class.isAssignableFrom(paramType) || MultipartRequest.class.isAssignableFrom(paramType) ||
HttpSession.class.isAssignableFrom(paramType) || HttpSession.class.isAssignableFrom(paramType) ||
(pushBuilder != null && pushBuilder.isAssignableFrom(paramType)) || PushBuilder.class.isAssignableFrom(paramType) ||
(Principal.class.isAssignableFrom(paramType) && !parameter.hasParameterAnnotations()) || (Principal.class.isAssignableFrom(paramType) && !parameter.hasParameterAnnotations()) ||
InputStream.class.isAssignableFrom(paramType) || InputStream.class.isAssignableFrom(paramType) ||
Reader.class.isAssignableFrom(paramType) || Reader.class.isAssignableFrom(paramType) ||
@@ -143,8 +127,13 @@ public class ServletRequestMethodArgumentResolver implements HandlerMethodArgume
} }
return session; return session;
} }
else if (pushBuilder != null && pushBuilder.isAssignableFrom(paramType)) { else if (PushBuilder.class.isAssignableFrom(paramType)) {
return PushBuilderDelegate.resolvePushBuilder(request, paramType); PushBuilder pushBuilder = request.newPushBuilder();
if (pushBuilder != null && !paramType.isInstance(pushBuilder)) {
throw new IllegalStateException(
"Current push builder is not of type [" + paramType.getName() + "]: " + pushBuilder);
}
return pushBuilder;
} }
else if (InputStream.class.isAssignableFrom(paramType)) { else if (InputStream.class.isAssignableFrom(paramType)) {
InputStream inputStream = request.getInputStream(); InputStream inputStream = request.getInputStream();
@@ -189,22 +178,4 @@ public class ServletRequestMethodArgumentResolver implements HandlerMethodArgume
throw new UnsupportedOperationException("Unknown parameter type: " + paramType.getName()); throw new UnsupportedOperationException("Unknown parameter type: " + paramType.getName());
} }
/**
* Inner class to avoid a hard dependency on Servlet API 4.0 at runtime.
*/
private static class PushBuilderDelegate {
@Nullable
public static Object resolvePushBuilder(HttpServletRequest request, Class<?> paramType) {
PushBuilder pushBuilder = request.newPushBuilder();
if (pushBuilder != null && !paramType.isInstance(pushBuilder)) {
throw new IllegalStateException(
"Current push builder is not of type [" + paramType.getName() + "]: " + pushBuilder);
}
return pushBuilder;
}
}
} }