Update Spring Integration metrics support since Spring Integration
`4.3.6`+ no longer needs `spring-integration-jmx` enable
`MessageChannel`, `MessageHandler` and `MessageSource` metrics.
- Add `IntegrationManagementConfiguration` conditional auto-configuration
to provide `@EnableIntegrationManagement` when JMX is `enabled` or there
is no `IntegrationManagementConfigurer.MANAGEMENT_CONFIGURER_NAME` bean.
By default this bean doesn't exist and you explicitly should declare it
(e.g. via `@EnableIntegrationManagement`) if you would like to collect
metrics. At the same time Spring Integration enables it when JMX
management is present (that is a purpose of that new
`IntegrationManagementConfiguration`)
- Change `SpringIntegrationMetricReader` to read metrics from the
`IntegrationManagementConfigurer`, not `IntegrationMBeanExporter`
- Change `PublicMetricsAutoConfiguration` to register
`IntegrationManagementConfigurer.MANAGEMENT_CONFIGURER_NAME` bean if
not present. Since we are here in `actuator`, therefore we are
interested in the metrics for SI as well.
- Since we don't need JMX for the metrics any more, remove SI-JMX
dependency from the `spring-boot-starter-integration`.
- Remove `IntegrationManagementConfiguration` modification from the
`integrationMbeanExporter()`, since that looks like mutation of an
external object, when end-user would prefer their own options.
Therefore we don't need `ObjectProvider<IntegrationManagementConfigurer>`, too
- Add missed `MessageSourceMetrics` gathering for the
`SpringIntegrationMetricReader`
Closes gh-7722
Rework commit 4a69755b to remove the need for the ApplicationInfo class.
The updated code now uses the auto-configuration class to compute a
default persistence unit root location
Closes gh-6635
Due to the layout format change in 1.4, Spring Framework is no longer
able to compute a default persistence unit root URL. If a Spring Boot 1.4
application has JPA but does not have any entity, the application started
from a fat jar now fails with a quite cryptic exception.
This commit introduces `ApplicationInfo` as a general replacement for
the `ApplicationArguments` and `Banner` singleton beans that
`SpringApplication` registers on startup. `ApplicationInfo` also defines
the detected "main" `Class` that can be used to compute a last resort
URL that makes sense.
If such bean is available, `EntityManagerFactoryBuilder` now sets the
default persistence unit root location, preventing Spring Framework to
attempt to resolve an unknown location. Note that in our case the
persistence unit root location is actually useless: given the way the
persistence unit is created, nothing actually uses it but Hibernate, as a
compliant JPA provider, has to make sure this setting is set to a valid
URL nevertheless.
Closes gh-6635