Hi,
I'm trying to override properties in a Camel Spring project. In my production
code, I have a field injected with
@Component
public class MyRouteBuilder extends SpringRouteBuilder {
@PropertyInject("{{MY_PROPERTY}} ")
private String myProperty;
}
I normally load the value from a properties file using a
BridgePropertyPlaceholderConfigurer.
In one of my tests, I'd like to replace the property. My test looks as follows:
@RunWith(CamelSpringRunner.class)
@BootstrapWith(CamelTestContextBootstrapper.class)
@ContextConfiguration(locations = {
"classpath:META-INF/spring/my-properties.xml"
})
@DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_EACH_TEST_METHOD)
@UseAdviceWith
public class CitizenLookupPatientByOIDRouteTest {
@Test
public void test() {
...
}
@UseOverridePropertiesWithPropertiesComponent
public static Properties overrideProperties() {
Properties overrides = new Properties();
overrides.setProperty("MY_PROPERTY", "some-value");
return overrides;
}
}
What I am seeing is that the injected field gets the value from the properties
file, rather than the overridden value. Debugging this, I see that the field
injection happens during Spring bean postprocessing, which is before the
overrideProperties method is called.
parseUri:190, PropertiesComponent (org.apache.camel.component.properties)
parseUri:178, PropertiesComponent (org.apache.camel.component.properties)
resolvePropertyPlaceholders:2547, DefaultCamelContext (org.apache.camel.impl)
getInjectionPropertyValue:276, CamelPostProcessorHelper (org.apache.camel.impl)
injectFieldProperty:214, DefaultCamelBeanPostProcessor (org.apache.camel.impl)
doWith:174, DefaultCamelBeanPostProcessor$1 (org.apache.camel.impl)
doWithFields:74, ReflectionHelper (org.apache.camel.util)
injectFields:170, DefaultCamelBeanPostProcessor (org.apache.camel.impl)
postProcessBeforeInitialization:83, DefaultCamelBeanPostProcessor
(org.apache.camel.impl)
postProcessBeforeInitialization:154, CamelBeanPostProcessor
(org.apache.camel.spring)
applyBeanPostProcessorsBeforeInitialization:419,
AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
initializeBean:1737, AbstractAutowireCapableBeanFactory
(org.springframework.beans.factory.support)
doCreateBean:576, AbstractAutowireCapableBeanFactory
(org.springframework.beans.factory.support)
createBean:498, AbstractAutowireCapableBeanFactory
(org.springframework.beans.factory.support)
lambda$doGetBean$0:320, AbstractBeanFactory
(org.springframework.beans.factory.support)
getObject:-1, 1286771084
(org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$40)
getSingleton:222, DefaultSingletonBeanRegistry
(org.springframework.beans.factory.support)
doGetBean:318, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:199, AbstractBeanFactory (org.springframework.beans.factory.support)
preInstantiateSingletons:846, DefaultListableBeanFactory
(org.springframework.beans.factory.support)
finishBeanFactoryInitialization:863, AbstractApplicationContext
(org.springframework.context.support)
refresh:546, AbstractApplicationContext (org.springframework.context.support)
loadContext:152, CamelSpringTestContextLoader (org.apache.camel.test.spring)
loadContext:89, CamelSpringTestContextLoader (org.apache.camel.test.spring)
loadContextInternal:99, DefaultCacheAwareContextLoaderDelegate
(org.springframework.test.context.cache)
loadContext:117, DefaultCacheAwareContextLoaderDelegate
(org.springframework.test.context.cache)
getApplicationContext:108, DefaultTestContext
(org.springframework.test.context.support)
injectDependencies:118, DependencyInjectionTestExecutionListener
(org.springframework.test.context.support)
prepareTestInstance:83, DependencyInjectionTestExecutionListener
(org.springframework.test.context.support)
prepareTestInstance:246, TestContextManager (org.springframework.test.context)
createTest:227, SpringJUnit4ClassRunner
(org.springframework.test.context.junit4)
The code causing the injection in CamelSpringContextLoader is this
https://github.com/apache/camel/blob/camel-2.23.1/components/camel-test-spring/src/main/java/org/apache/camel/test/spring/CamelSpringTestContextLoader.java#L152.
A few lines below, the properties override code is called.
It is possible to work around this by never field/method injecting properties,
but I think it would be nicer if this worked. Is there something I can do to
delay the field injection until after the property override? Should I raise an
issue for this on the Camel issue tracker?
