This commit simplifies the Jackson-related auto-configuration that’s
applied when Spring HATEOAS and Spring Data REST are on the classpath.
Previously, Boot used Jackson2HalModule to apply the HAL-related
ObjectMapper configuration to the context’s primary ObjectMapper. This
was to allow HAL-formatted responses to be sent for requests accepted
application/json (see gh-2147). This had the unwanted side-effect of
polluting the primary ObjectMapper with HAL-specific functionality.
Furthermore, Jackson2HalModule is an internal of Spring HATEOAS that
@olivergierke has asked us to avoid using.
This commit replaces the use of Jackson2HalModule with a new approach.
Now, the message converters of any RequestMappingHandlerAdapter beans
are examined and any TypeConstrainedMappingJackson2HttpMessageConverter
instances are modified to support application/json in addition to their
default support for application/hal+json. This behaviour can be disabled
by setting spring.hateoas.use-hal-as-default-json-media-type to false.
This property is named after Spring Data REST’s configuration option
which has the same effect when using Spring Data REST. The new property
replaces the old spring.hateoas.apply-to-primary-object-mapper property.
Previously, when Spring Data REST was on the classpath,
JacksonAutoConfiguration would be switched off resulting in the context
containing multiple ObjectMappers, none of which was primary.
This commit configures RepositoryRestMvcAutoConfiguration to run after
JacksonAutoConfiguration. This gives the latter a chance to create its
primary ObjectMapper before the former adds its ObjectMapper beans to
the context.
Previously, the actuator’s hypermedia support assumed that the
HttpMessageConverters bean would contain every HttpMessageConverter
being used by Spring MVC. When Spring HATEOAS is on the classpath this
isn’t the case as it post-processes RequestMappingHandlerAdapter beans
and adds a TypeConstrainedMappingJackson2HttpMessageConverter to them.
This wasn’t a problem in the past as the primary ObjectMapper, used by a
vanilla MappingJackson2HttpMessageConverter, was configured with Spring
HATEOAS’sJackson2HalModule. Now that this pollution has been tidied up
the assumption described above no longer holds true. MvcEndpointAdvice,
which adds links to the actuator’s json responses, has been updated
to look at the HttpMessageConverters of every
RequestMappingHandlerAdapter when it’s trying to find a converter to
use to write a response with additional hypermedia links.
Integration tests have been added to spring-boot-actuator to ensure
that the changes described above have not regressed the ability to
configure its json output using spring.jackson.* properties (see
gh-1729).
Closes gh-3891
Update MetricExportAutoConfiguration to auto-configure statsd metrics
export when a `spring.metrics.export.statsd.host` property is set.
Closes gh-3719
Relocate several auto-configuration classes to `...autoconfigure.data`
to make it clearer that they are Spring Data specific.
Also moved `EntityManagerFactoryBuilder` to `spring-boot` since it is
generally useful and doesn't need to be directly tied to the
auto-configuration module.
Fixes gh-4002
Introduce ManagementServletContext interface as a facade for
ManagementServerProperties to resolve the package tangle between
`o.s.boot.actuate.endpoint.mvc` and `o.s.boot.actuate`
Fixes gh-3887
Since the meta-data now provide an explicit support for value hints, we
should not copy/paste them in the description as the IDE is able to
process them any way it wants.
Closes gh-3863
Given that Spring Boot uses java config accross the board, a new `value`
attribute is now aliased to the existing `classes` attribute such that
one could write the following:
@SpringApplicationConfiguration(MyConfig.class)
public class MyTest {}
Closes gh-3635
The DataSource health indicator uses `JdbcTemplate` behind the scenes
but nothing was checking that it is actually available.
`DataSourcesHealthIndicatorConfiguration` is now disabled if
`spring-jdbc` is not on the classpath.
Fixes gh-3765
Following the changes made to combines the /links and /hal endpoints
into a single /actuator endpoint, a web browser accessing /actuator
would receive a 406 response if HAL browser was not on the classpath.
This commit updates the /actuator main entry point so that it will
serve JSON to a web browser when HAL browser is not on the classpath.
The actuator's embedded documentation has also been updated to reflect
the recent changes.
Closes gh-3696
This commit provides a single endpoint, /actuator, that serves HTML
(the HAL browser) or JSON depending on the request’s accept header
that enables discovery of all of the actuator’s other endpoints.
When the management context path is configured, the /actuator endpoint
moves to the configured path, e.g. if the management context path is
set to /management, the actuator endpoint will be available from
/management.
Closes gh-3696
Update LinksMvcEndpoint and HalBrowserMvcEndpoint so that no longer try
to use the `/` context path. Links are now available from `/links` and
the HAL browser is available from `/hal`.
The actuator HAL browser now works with either WebJars or the Spring
Data version. It also now transforms the initial HTML so that the
form is pre-populated with `/links`.
When using Spring Data's HAL browser, the root includes a link to
`/links` with a rel of `actuator`.
See gh-3621
ConfigurationPropertiesReportEndpoint parses the meta-data to inspect
entities that have potential cycles in them. The whole logic is based on
the lookup of `META-INF/spring-configuration-metadata.json` files on the
classpath. Unfortunately, the lookup instruction had a typo and did not
retrieve any file.
Surely that code was written with a clear intention in mind but it was
effectively dead code outside tests so it has been removed.
Closes gh-3310
Add a "management.health.defaults.enabled" property that controls whether
the default health indicators are enabled. This allow to disable them all
by default and still enable individual ones using their respective
specific property.
Closes gh-2298
Phillip Webb
Julien Dubois
Andy Wilkinson
Simon Buettner
Thomas Badie
Stephane Nicoll
izeye
Dave Syer
Martin Lippert
Arthur Kalimullin
arghya88