使用 class 中介在 WSO2 ESB 中创建自定义代理时出错

Question

我用的是WSO2_ESB5.0版本。下面提到了我写的class mediator

  public abstract class CustomMediator extends AbstractMediator {

    private static final Log log = LogFactory.getLog(CustomMediator.class);

    private String num1 = "10";
    private String num2 = "15";
    private int sum = 0;

    public boolean mediate(MessageContext mc) {

        log.info("Call the custom mediator");
        sum = Integer.parseInt(num1) + Integer.parseInt(num2);
        String totalOfIntegers = String.valueOf(sum);
        mc.setProperty("totalOfIntegers", totalOfIntegers);

        log.info("Sum of two numbers : " + totalOfIntegers);

        return true;
    }

    public String getType() {
        return null;
    }

    public void setTraceState(int traceState) {
        traceState = 0;
    }

    public int getTraceState() {
        return 0;
    }

    public String getNum1() {
        return num1;
    }

    public void setNum1(String num1) {
        this.num1 = num1;
    }

    public String getNum2() {
        return num2;
    }

    public void setNum2(String num2) {
        this.num2 = num2;
    }
}

然后我将 the.jar 文件上传到 /repository/components/lib 文件夹。下面提到了我为访问 class 调解器而创建的自定义代理。

<?xml version="1.0" encoding="UTF-8"?>
<inSequence xmlns="http://ws.apache.org/ns/synapse">
    <log/>
    <class name="com.mediator.java.CustomMediator">
        <axis2ns1:property name="num1" value="10" xmlns:axis2ns1="http://ws.apache.org/ns/synapse"/>
        <axis2ns2:property name="num2" value="12" xmlns:axis2ns2="http://ws.apache.org/ns/synapse"/>
    </class>
    <property expression="get-property('default','totalOfIntegers')"
        name="getTotalValue" scope="default" type="STRING"/>
    <log>
        <property expression="get-property('default','getTotalValue')" name="Total :"/>
    </log>
</inSequence>

<?xml version="1.0" encoding="UTF-8"?>
<outSequence xmlns="http://ws.apache.org/ns/synapse">
    <log/>
    <send/>
</outSequence>

创建自定义代理服务时，出现如下错误。

Unable to add proxy service :: Error in instantiating class : com.mediator.java.CustomMediator-Error in instantiating class : com.mediator.java.CustomMediator

你能帮我解决这个问题吗？非常感谢任何帮助或解决方法。

Answer 1

您能否将 CustomMediator class 定义为非抽象的并尝试。

public class CustomMediator extends AbstractMediator

谢谢

使用 class 中介在 WSO2 ESB 中创建自定义代理时出错

Error occurred when create custom proxy in WSO2 ESB using class mediator

java

proxy

wso2

wso2esb