Update Health and Status objects to be immutable, update the existing
builder methods to return new instances and add static convenience
methods to Health.
The in-memory version has to force the incoming metric keys to
start with the group name. Redis doesn't have that restriction
but normally we expect both to be used in such a way that
the metric keys already match the prefix. In that case the two
repositories behave the same now in terms of set and get.
In the redis repository we also switch to store the value in the
zset (so it can be atomically incremented) rather than in the
regular key-value.
Fixes gh-929
With this commit the state of a component or subsystem becomes a first-class citizen in Boot's application health support. HealthIndicators now return a Health instance with status and some contextual details.
An aggregation strategy has been introduced to aggregate several Health instances into one final application Health instance. Out of the box OrderedHealthAggregator can be configured to allow different ordering or a custom HealthAggregator bean can be registered.
The prefix needs to be added before looking for keys. In addition
I rationalized the constructor and final fields (it didn't make
any sense for the prefix to be mutable).
Fixes gh-927
The PrefixMetricGroupExporter only really makes sesne if the writer
is aware of the groups, so it seemed better to use a new interface
than mix read/write.
Update all @PostConstruct methods to ensure that they don't throw
checked exceptions. Required to allow deployment of Spring Boot
applications on Glassfish.
Fixes gh-868
We now have a much simpler DataSourceAutoConfiguration that binds to whatever
DataSource concrete type it finds at runtime. To be able to quickly switch between
Hikari and the other types of DataSource there's a minute shim for translating
the common properties (username, password, url, driverClassName), but actually
only url is different. The shim and also DataSource initialization is supported
through DataSourceProperties, but the other native properties get bound directly
through the concrete runtime type of the DataSource.
The /configprops endpoint works (and is exposed in the actuator sample).
Fixes gh-840, fixes gh-477, see also gh-808.
Introspects the properties that are being exposed in the report
and only renders the ones that are a) convertible from String
and b) have a setter. That goes a long way to making it a bullet
proof generic renderer of any Java object that can be bound with
@ConfigurationProperties.
Update the BasicErrorController so that it no longer needs to implement
@ControllerAdvice or have an @ExceptionHandler method.
A new ErrorAttributes interface is now used to obtain error details,
the DefaultErrorAttributes implementation uses a
HandlerExceptionResolver to obtain root exception details if the
`javax.servlet.error.*` attributes are missing.
This change also removes the need for the extract(...) method on
ErrorController as classes such as WebRequestTraceFilter can
now use the ErrorAttributes interface directly.
See gh-839, gh-538
Fixes gh-843
Phillip Webb
Christian Dupuis
Dave Syer
Eric Dahl
Andy Wilkinson
Lukasz Kryger