Question

我有一个流通过VM端点调用另一个流。调用失败，异常为NoReceiverForEndpointException。日志中的消息是：

There is no receiver registered on connector "connector.VM.mule.default" for endpointUri vm://inner

有谁知道为什么？这是Mule 3.3.0企业版。

感谢。

配置文件：

<mule ...>
    <vm:endpoint name="inner" path="inner" />
    <flow name="inner.flow">
        <inbound-endpoint ref="inner" exchange-pattern="request-response" />
        <logger level="INFO" message="in inner flow" />
    </flow>

    <vm:endpoint name="outer" path="outer" />
    <flow name="outer.flow">
        <inbound-endpoint ref="outer" exchange-pattern="one-way" />
        <logger level="INFO" message="in outer flow" />
        <outbound-endpoint ref="inner" exchange-pattern="request-response" />
    </flow>
</mule>

运行它的测试用例：

import org.junit.Test;
import org.mule.api.MuleException;
import org.mule.module.client.MuleClient;
import org.mule.tck.junit4.FunctionalTestCase;

public class VMEndpointTest extends FunctionalTestCase {

    @Test
    public void innerIsCalled() throws MuleException {
        final MuleClient client = new MuleClient(muleContext);
        client.sendNoReceive("outer", new Object(), null);
    }

    @Override
    protected String getConfigResources() {
        return "test.xml";
    }

}

Answer 1

啊，我自己想出来了：

外部端点为one-way，因此我应该使用dispatch向其发送消息。
单元测试需要一些机制来等待Mule处理one-way流中的消息。我在Java代码中引入了receive调用，为此引入了一个vm端点。

配置文件：

<mule ...>
    <vm:endpoint name="outer" path="outer" />
    <flow name="outer.flow">
        <inbound-endpoint ref="outer" exchange-pattern="one-way" />
        <logger level="INFO" message="in outer flow" />
        <outbound-endpoint ref="inner" exchange-pattern="request-response" />
    </flow>

    <vm:endpoint name="inner" path="inner" />
    <vm:endpoint name="inner.completed" path="inner.completed" />
    <flow name="inner.flow">
        <inbound-endpoint ref="inner" exchange-pattern="request-response" />
        <logger level="INFO" message="in inner flow" />
        <outbound-endpoint ref="inner.ftc" exchange-pattern="request-response" />
        <outbound-endpoint ref="inner.completed" exchange-pattern="one-way" />
    </flow>

    <vm:endpoint name="inner.ftc" path="inner.ftc" />
    <simple-service name="innerFtc" endpoint-ref="inner.ftc">
        <test:component />
    </simple-service>
</mule>

测试用例：

package foo;

import static org.junit.Assert.assertEquals;

import org.junit.Test;
import org.mule.module.client.MuleClient;
import org.mule.tck.functional.FunctionalTestComponent;
import org.mule.tck.junit4.FunctionalTestCase;

public class VMEndpointTest extends FunctionalTestCase {

    @Test
    public void innerIsCalled() throws Exception {
        final FunctionalTestComponent ftc = getFunctionalTestComponent("innerFtc");
        final Object object = new Object();
        final MuleClient client = new MuleClient(muleContext);

        client.dispatch("outer", object, null);
        client.request("inner.completed", RECEIVE_TIMEOUT);

        assertEquals(object, ftc.getLastReceivedMessage());
    }

    @Override
    protected String getConfigResources() {
        return "test.xml";
    }

}

Answer 2

对于两个vm端点，您必须使用相同的名称进行配置，然后才会连接。

使用VM入站端点发出调用流

2 个答案: