spring 使用多个上下文的骆驼测试
spring camel test using multiple contexts
我有两个 camel 上下文（A 和 B）在不同的 xml 使用 Spring。当我只加载一个上下文时，我的 junit 工作，但是当我尝试加载两个上下文时，端点注入失败 运行 junit.
所以，有人有一个示例如何使用 spring camel 的多上下文测试？
Spring 测试
public class BaseSpringTest extends CamelSpringTestSupport
{
protected AbstractXmlApplicationContext createApplicationContext()
{
return new ClassPathXmlApplicationContext("camel-config.xml");
}
}
我的档案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>
我的背景：
<camelContext xmlns="camel.apache.org/schema/spring" id="contextA">
...
</camelContext>
<camelContext xmlns="camel.apache.org/schema/spring" id="contextB">
...
</camelContext>
我的单元测试，注入失败 Endpoint:
@EndpointInject(uri = "direct:myroute", context="contextB")
private Endpoint eFooTest;
堆栈跟踪：
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.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.evaluate(TestWatcher.java:55)
at org.junit.rules.TestWatcher.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.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access[=15=]0(ParentRunner.java:53)
at org.junit.runners.ParentRunner.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.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
CamelBeanPostProcessor 显然有一个错误，当有多个上下文时返回空值！
if (contexts != null && contexts.size() == 1) {
@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 2.16.2
Spring 4.1.5
JDK 1.7
JDK 1.8
我也为此苦苦挣扎了一段时间。最后，我设法解决了一个变通方法，它允许我使用生产中使用的原始路由 xml 文件，但合并到单个 camel 上下文中以便能够将其用于测试。这样我就可以为 bean 端点注入模拟并通过在模拟上断言来检查完整的过程。
有两种不同的捆绑包。一个来自发票，另一个用于电子邮件。路由协调流程。
首先，我在生产 xml 文件中外部化了路由。 Spring 上下文 (invoicing-spring-context.xml) 和路由 (invoicing-routes.xml) 发票包文件：
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
...
<camelContext id="invoicingCamelContext"
xmlns="http://camel.apache.org/schema/spring">
<routeContextRef ref="invoicingRoutes"/>
</camelContext>
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
<routeContext id="invoicingRoutes" xmlns="http://camel.apache.org/schema/spring">
<route id="planner" autoStartup="true">
<from uri="quartz://planner?cron=0+0+23+16+*+?" />
<to uri="direct:invoicing" />
</route>
<route id="invoicing" autoStartup="true">
<from uri="direct:invoicing?exchangePattern=InOut" />
<to uri="bean:invoicer?method=generateInvoices" />
<to uri="direct-vm:emailing" />
</route>
</routeContext>
</beans>
Spring 上下文 (emailing-spring-context.xml) 和路由 (emailing-routes.xml) 用于电子邮件捆绑：
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
...
<camelContext id="emailingCamelContext"
xmlns="http://camel.apache.org/schema/spring">
<routeContextRef ref="emailingRoutes"/>
</camelContext>
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
<routeContext id="emailingRoutes" xmlns="http://camel.apache.org/schema/spring">
<route id="emailing" autoStartup="true">
<from uri="direct-vm:emailing" />
<to uri="bean:emailer?method=createEmails" />
<to uri="bean:emailer?method=sendEmails" />
</route>
</routeContext>
</beans>
然后出于测试目的，我创建了另一个 spring 上下文 (complete-process-test-spring-context.xml)，它同时导入了路线文件：
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
...
<camelContext id="completeProcessTestCamelContext"
xmlns="http://camel.apache.org/schema/spring">
<routeContextRef ref="invoicingRoutes"/>
<routeContextRef ref="emailingRoutes"/>
</camelContext>
</beans>
测试 class 看起来像：
public class CompleteProcessTest extends CamelSpringTestSupport {
@Test
public void completeProcess() {
...
invoicerMock.generateInvoices(EasyMock.isA(Exchange.class));
emailerMock.createEmails(EasyMock.isA(Exchange.class));
emailerMock.sendEmails(EasyMock.isA(Exchange.class));
EasyMock.replay(invoicerMock);
EasyMock.replay(emailerMock);
this.template.requestBody(this.context.getEndpoint("direct://invoicing"), "");
EasyMock.verify(invoicerMock);
EasyMock.verify(emailerMock);
}
@Override
protected AbstractApplicationContext createApplicationContext() {
return new ClassPathXmlApplicationContext("classpath:/META-INF/spring/invoicing-routes.xml",
"classpath:/META-INF/spring/emailing-routes.xml",
"classpath:/META-INF/spring/complete-process-test-spring-context.xml");
}
...
}
谢谢@Jorge-c，但是使用 routeContext 我们一直只有一个 CamelContext。
要在单元测试中使用乘法上下文，请不要使用 CamelSpringTestSupport，这是一个错误。
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;
}
这有效！ 不要忘记在端点注释中明确地加上 context="contextB"
Camel 2.16.2
Spring 4.1.5
JDK 1.7
JDK 1.8
我有两个 camel 上下文（A 和 B）在不同的 xml 使用 Spring。当我只加载一个上下文时，我的 junit 工作，但是当我尝试加载两个上下文时，端点注入失败 运行 junit.
所以，有人有一个示例如何使用 spring camel 的多上下文测试？
Spring 测试
public class BaseSpringTest extends CamelSpringTestSupport
{
protected AbstractXmlApplicationContext createApplicationContext()
{
return new ClassPathXmlApplicationContext("camel-config.xml");
}
}
我的档案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>
我的背景：
<camelContext xmlns="camel.apache.org/schema/spring" id="contextA">
...
</camelContext>
<camelContext xmlns="camel.apache.org/schema/spring" id="contextB">
...
</camelContext>
我的单元测试，注入失败 Endpoint:
@EndpointInject(uri = "direct:myroute", context="contextB")
private Endpoint eFooTest;
堆栈跟踪：
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.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.evaluate(TestWatcher.java:55)
at org.junit.rules.TestWatcher.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.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access[=15=]0(ParentRunner.java:53)
at org.junit.runners.ParentRunner.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.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
CamelBeanPostProcessor 显然有一个错误，当有多个上下文时返回空值！
if (contexts != null && contexts.size() == 1) {
@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 2.16.2
Spring 4.1.5
JDK 1.7
JDK 1.8
我也为此苦苦挣扎了一段时间。最后，我设法解决了一个变通方法，它允许我使用生产中使用的原始路由 xml 文件，但合并到单个 camel 上下文中以便能够将其用于测试。这样我就可以为 bean 端点注入模拟并通过在模拟上断言来检查完整的过程。
有两种不同的捆绑包。一个来自发票，另一个用于电子邮件。路由协调流程。
首先，我在生产 xml 文件中外部化了路由。 Spring 上下文 (invoicing-spring-context.xml) 和路由 (invoicing-routes.xml) 发票包文件：
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
...
<camelContext id="invoicingCamelContext"
xmlns="http://camel.apache.org/schema/spring">
<routeContextRef ref="invoicingRoutes"/>
</camelContext>
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
<routeContext id="invoicingRoutes" xmlns="http://camel.apache.org/schema/spring">
<route id="planner" autoStartup="true">
<from uri="quartz://planner?cron=0+0+23+16+*+?" />
<to uri="direct:invoicing" />
</route>
<route id="invoicing" autoStartup="true">
<from uri="direct:invoicing?exchangePattern=InOut" />
<to uri="bean:invoicer?method=generateInvoices" />
<to uri="direct-vm:emailing" />
</route>
</routeContext>
</beans>
Spring 上下文 (emailing-spring-context.xml) 和路由 (emailing-routes.xml) 用于电子邮件捆绑：
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
...
<camelContext id="emailingCamelContext"
xmlns="http://camel.apache.org/schema/spring">
<routeContextRef ref="emailingRoutes"/>
</camelContext>
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
<routeContext id="emailingRoutes" xmlns="http://camel.apache.org/schema/spring">
<route id="emailing" autoStartup="true">
<from uri="direct-vm:emailing" />
<to uri="bean:emailer?method=createEmails" />
<to uri="bean:emailer?method=sendEmails" />
</route>
</routeContext>
</beans>
然后出于测试目的，我创建了另一个 spring 上下文 (complete-process-test-spring-context.xml)，它同时导入了路线文件：
<?xml version="1.0" encoding="UTF-8"?>
<beans ...>
...
<camelContext id="completeProcessTestCamelContext"
xmlns="http://camel.apache.org/schema/spring">
<routeContextRef ref="invoicingRoutes"/>
<routeContextRef ref="emailingRoutes"/>
</camelContext>
</beans>
测试 class 看起来像：
public class CompleteProcessTest extends CamelSpringTestSupport {
@Test
public void completeProcess() {
...
invoicerMock.generateInvoices(EasyMock.isA(Exchange.class));
emailerMock.createEmails(EasyMock.isA(Exchange.class));
emailerMock.sendEmails(EasyMock.isA(Exchange.class));
EasyMock.replay(invoicerMock);
EasyMock.replay(emailerMock);
this.template.requestBody(this.context.getEndpoint("direct://invoicing"), "");
EasyMock.verify(invoicerMock);
EasyMock.verify(emailerMock);
}
@Override
protected AbstractApplicationContext createApplicationContext() {
return new ClassPathXmlApplicationContext("classpath:/META-INF/spring/invoicing-routes.xml",
"classpath:/META-INF/spring/emailing-routes.xml",
"classpath:/META-INF/spring/complete-process-test-spring-context.xml");
}
...
}
谢谢@Jorge-c，但是使用 routeContext 我们一直只有一个 CamelContext。
要在单元测试中使用乘法上下文，请不要使用 CamelSpringTestSupport，这是一个错误。
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;
}
这有效！ 不要忘记在端点注释中明确地加上 context="contextB"
Camel 2.16.2
Spring 4.1.5
JDK 1.7
JDK 1.8