使用多上下文的spring camel测试

Question

那么，有人有一个如何在spring Camel中使用多上下文测试的示例吗？

Spring试验

public class BaseSpringTest extends CamelSpringTestSupport
{
    protected AbstractXmlApplicationContext createApplicationContext()
    {
        return new ClassPathXmlApplicationContext("camel-config.xml");
    }
} 

我的文件camel-config.xml

<beans>
 <context:annotation-config/>
 <import resource="classpath:camel-test-dao.xml" />
 <import resource="classpath:camel-contextA.xml"/>
 <import resource="classpath:camel-contextB.xml"/>
</beans>

<camelContext xmlns="camel.apache.org/schema/spring" id="contextA"> 
 ...
</camelContext>
<camelContext xmlns="camel.apache.org/schema/spring" id="contextB"> 
...
</camelContext>

@EndpointInject(uri = "direct:myroute", context="contextB")
private Endpoint eFooTest;

org.apache.camel.spring.GenericBeansException: Error post processing bean: com.mycompany.test.FooTest; nested exception is java.lang.NullPointerException
  at org.apache.camel.spring.CamelBeanPostProcessor.postProcessBeforeInitialization(CamelBeanPostProcessor.java:154)
  at org.apache.camel.test.spring.CamelSpringTestSupport.postProcessTest(CamelSpringTestSupport.java:62)
  at org.apache.camel.test.junit4.CamelTestSupport.doSetUp(CamelTestSupport.java:319)
  at org.apache.camel.test.junit4.CamelTestSupport.setUp(CamelTestSupport.java:238)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:606)
  at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
  at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
  at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
  at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
  at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
  at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
  at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
  at org.junit.rules.RunRules.evaluate(RunRules.java:20)
  at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
  at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
  at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
  at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
  at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
  at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
  at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
  at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
  at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
  at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
  at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
  at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
  at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
  at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
  at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
  at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.NullPointerException
  at org.apache.camel.impl.CamelPostProcessorHelper.matchContext(CamelPostProcessorHelper.java:84)
  at org.apache.camel.impl.DefaultCamelBeanPostProcessor$1.doWith(DefaultCamelBeanPostProcessor.java:181)
  at org.apache.camel.util.ReflectionHelper.doWithFields(ReflectionHelper.java:73)
  at org.apache.camel.impl.DefaultCamelBeanPostProcessor.injectFields(DefaultCamelBeanPostProcessor.java:168)
  at org.apache.camel.impl.DefaultCamelBeanPostProcessor.postProcessBeforeInitialization(DefaultCamelBeanPostProcessor.java:82)
  at org.apache.camel.spring.CamelBeanPostProcessor.postProcessBeforeInitialization(CamelBeanPostProcessor.java:148)
  ... 31 more

@XmlTransient
private final DefaultCamelBeanPostProcessor delegate = new DefaultCamelBeanPostProcessor() {
    @Override
    public CamelContext getOrLookupCamelContext() {
        if (camelContext == null) {
            if (camelId != null) {
                LOG.trace("Looking up CamelContext by id: {} from Spring ApplicationContext: {}", camelId, applicationContext);
                camelContext = applicationContext.getBean(camelId, CamelContext.class);
            } else {
                // lookup by type and grab the single CamelContext if exists
                LOG.trace("Looking up CamelContext by type from Spring ApplicationContext: {}", applicationContext);
                Map<String, CamelContext> contexts = applicationContext.getBeansOfType(CamelContext.class);
                if (contexts != null && contexts.size() == 1) {
                    camelContext = contexts.values().iterator().next();
                }
            }
        }
        return camelContext;
    }

Camel 2.16.2Spring 4.1.5JDK 1.7JDK 1.8

Answer 1

Thanks@jorge-c，但是使用routeContext我们只需要一个CamelContext。

要在单元测试中使用多上下文，请不要使用CamelSpringTestSupport，因为存在一个bug。

public class BaseSpringTest extends CamelSpringTestSupport {...}

使用“@runwith(SpringJUnit4ClassRunner.class)”

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("/camel-my-root-spring-config.xml")
public class BaseSpringJUnit4 
{
  @EndpointInject(uri = "direct:myroute", context="contextB")
  private Endpoint eFooTest;
}