Update `Binder` so that if a property exists, but it cannot be converted
to required type, bean binding is attempted.
Prior to this commit, if a user happened to have an environment
variable named `SERVER` the binder would fail when trying to directly
convert its `String` value into a `ServerProperties`
Fixes gh-10945
Update appropriate configuration properties to use the `Duration`
type, rather than an ad-hoc mix of milliseconds or seconds.
Configuration properties can now be defined in a consistent and readable
way. For example `server.session.timeout=5m`.
Properties that were previously declared using seconds are annotated
with `@DurationUnit` to ensure a smooth upgrade experience. For example
`server.session.timeout=20` continues to mean 20 seconds.
Fixes gh-11080
Update `StringToDurationConverter` so that the suffix is optional and
values such as `100`, `+100`, `-100` are assumed to be milliseconds.
Also add support for `@DurationUnit` to allow the unit to be changed
on a per-field basis (allowing for better back-compatibility).
Closes gh-11078
Extend `BinderConversionService` to support `Duration` parsing of
the more readable `10s` form (equivalent to 10 seconds). Standard
ISO-8601 parsing also remains as an option.
Fixes gh-11078
Update `RedisProperties` to use an actual String[] for sentinal nodes
rather than a simple String. This allows us to lean on the updated
binder to automatically trim the elements.
Fixes gh-11029
Update `SpringConfigurationPropertySource` so that the
`SystemEnvironmentPropertyMapper` is only used for the "actual" system
environment property source. This allows SystemEnvironmentProperySource
class to be used for other purposes (for example, Spring Cloud uses it
to as an override source providing decryption).
Only property sources named `systemEnvironment` or ending with
`-systemEnvironment` now have the `SystemEnvironmentPropertyMapper`
applied. The `TestPropertyValues` has been retrofitted to name the
source it adds appropriately.
Fixes gh-10840
Refine `SystemEnvironmentPropertyMapper` to support environment
variables that would have worked in Spring Boot 1.5. Specifically,
camelCase property bindings now support an additional underscore. The
recommended way to map `fooBar` is still `PREFIX_FOOBAR`, however,
`PREFIX_FOO_BAR` will now also work.
Fixes gh-10873
Refine the binder recursion rules introduced in commit f337323819 so
they only apply to Maps. Recursive List and Array binding is now no
longer allowed. Prior to this commit, binding a List that contained a
reference to itself would fail with a `StackOverflowException` if the
underlying property source was not iterable.
Fixes gh-10702
Refactor `ReactiveWebApplicationContext` implementations to align closer
with the `WebApplicationContext` implementations defined in
Spring Framework.
The following classes are now provided:
- `AnnotationConfigReactiveWebApplicationContext` -- A refreshable
reactive web context with support for `@Configuration` classes.
- `GenericReactiveWebApplicationContext` -- A non-refreshable reactive
GenericApplicationContext.
- `ReactiveWebServerApplicationContext` -- A non-refreshable reactive
GenericApplicationContext with support for server discovery.
- `AnnotationConfigReactiveWebServerApplicationContext` -- A
non-refreshable reactive `GenericApplicationContext` with support
for `@Configuration` classes and server discovery.
These classes roughly align to the following Servlet equivalents:
- `AnnotationConfigWebApplicationContext` (Spring Framework)
- `GenericWebApplicationContext` (Spring Framework)
- `ServletWebServerApplicationContext` (Spring Boot)
- `AnnotationConfigServletWebServerApplicationContext` (Spring Boot)
An additional `ConfigurableReactiveWebEnvironment` interface as also
been introduced, primarily for `@ConditionalOnWebApplication` to use.
Fixes gh-10852
This commit enables HTTP/2 support for Tomcat and Undertow, for both
Servlet-based and Reactive applications.
Enabling the `server.http2.enabled` configuration flag is enough with
Undertow.
Tomcat has a few prerequisites:
* Tomcat 8.5 requires JDK8+ and the proper libtcnative version installed
on the host
* Tomcat 9.0.x requires JDK9+
Closes gh-10043
This commit adds a new configuration properties class for configuring
HTTP/2 protocol support.
By default, this protocol is disabled as enabling it requires several
manual changes:
* configuring a web server for proper TLS and ALPN support
* configuring a proper SSL certificate
See gh-10043
This commits adds the AprLifecycleListener as a default
LifecycleListener in order to detect and use automatically the
tomcatnative library if it is available, for SSL support.
This feature can be useful for both performance reasons or for
supporting ALPN when using JDK8.
See gh-10043
Closes gh-9964
