问题
I have written a simple apache camel project which will eventually be deployed in a FUSE container. For now, I'm simply trying to get a basic unit test working. I'm using the example here as a starting point.
I have written unit tests which work, but when I include a blueprint file, I get the following entry in the test output:
Bundle TestMainRoute is waiting for namespace handlers [http://camel.apache.org/schema/blueprint]
And the test fails with the following stack trace:
java.lang.RuntimeException: Gave up waiting for service (objectClass=org.apache.camel.CamelContext)
at org.apache.camel.test.blueprint.CamelBlueprintHelper.getOsgiService(CamelBlueprintHelper.java:240)
at org.apache.camel.test.blueprint.CamelBlueprintHelper.getOsgiService(CamelBlueprintHelper.java:202)
at org.apache.camel.test.blueprint.CamelBlueprintTestSupport.createCamelContext(CamelBlueprintTestSupport.java:352)
at org.apache.camel.test.junit4.CamelTestSupport.doSetUp(CamelTestSupport.java:247)
at org.apache.camel.test.junit4.CamelTestSupport.setUp(CamelTestSupport.java:217)
at org.apache.camel.test.blueprint.CamelBlueprintTestSupport.setUp(CamelBlueprintTestSupport.java:183)
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.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$2.evaluate(ParentRunner.java:229)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
My xml is very simple:
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0">
<routeContext id="validationRoute" xmlns="http://camel.apache.org/schema/blueprint" >
<route id="validation">
<from uri="direct:validation" />
<log message="validating..." />
</route>
</routeContext>
As is the code:
public class RouteTest extends CamelBlueprintTestSupport {
@Test
public void testValidationRoute() throws Exception {
DefaultExchange r1 = new DefaultExchange(context);
r1.getIn().setBody("");
Exchange response1 = template.send("direct:validation", r1);
}
protected String getBlueprintDescriptor() {
return "OSGI-INF/blueprint/blueprint.xml";
- List item
} }
NB the validation route is referenced by my main camel context:
public class IntegrationFramework extends RouteBuilder {
public void configure() {
from("netty-http:http://localhost:8457/broker/router.jsp").convertBodyTo(String.class)
.log("http router "+simple("${body}").getText())
.to("direct:validation");
}
I have other unit tests and logging which indicate that this part is working.
回答1:
I had the same error but another setup then @mdarwin, so I want to share my solution with you, too.
I startet a project with the camel-archetype-blueprint, so my namespaces looked like the following:
blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0"
xsi:schemaLocation="
http://www.osgi.org/xmlns/blueprint/v1.0.0 https://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
http://camel.apache.org/schema/blueprint http://camel.apache.org/schema/blueprint/camel-blueprint.xsd
http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0 http://aries.apache.org/schemas/blueprint-cm/blueprint-cm-1.1.0.xsd">
At the beginning it was a really simple blueprint with a timer and a file endpoint, so the implementation is not important here. I deployed my bundle to Karaf and for that I installed the aries-blueprint feature.
What I missed, and I feel really ashamed, was to install camel, too. For that I had to add the repo and than install it, as you can read here:
feature:repo-add camel
feature:install camel
Now the namespace handler is there.
I think that was obvious, but it still took some minutes to figure it out.
回答2:
Turns out that a routeContext only exists in the context of xml dsl, and cannot be referenced from the Java DSL. This in my opinion is a bug, since it restricts the flexibility of mixing xml and java configuration.
By changing the routeContext to a camelContext, this fixed the problem.
See also this question: Camel: importing routeContext into an external camelContext
Also related: https://issues.apache.org/jira/browse/CAMEL-5717
来源：https://stackoverflow.com/questions/36721820/bundle-is-waiting-for-namespace-handlers-http-camel-apache-org-schema-bluepri