cn.schoolwow.quickflow.service.flowContext.FlowContextInvocationHandler Maven / Gradle / Ivy

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package cn.schoolwow.quickflow.service.flowContext;

import cn.schoolwow.quickflow.domain.FlowExecutorConfig;
import cn.schoolwow.quickflow.service.flowContext.execute.FlowContextExecuteOperationImpl;
import cn.schoolwow.quickflow.service.flowContext.getData.FlowContextGetDataOperationImpl;
import cn.schoolwow.quickflow.service.flowContext.option.FlowContextOptionImpl;
import cn.schoolwow.quickflow.service.flowContext.putData.FlowContextPutDataOperation;
import cn.schoolwow.quickflow.service.flowContext.putData.FlowContextPutDataOperationImpl;
import cn.schoolwow.quickflow.service.flowContext.putInstanceData.FlowContextPutInstanceDataOperationImpl;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

/**
 * 代理模式对象
 */
public class FlowContextInvocationHandler implements InvocationHandler {
    private Object[] interfaceInstanceArray;

    public FlowContextInvocationHandler(FlowExecutorConfig flowExecutorConfig) {
        FlowContextPutDataOperation flowContextPutDataOperation = new FlowContextPutDataOperationImpl(flowExecutorConfig);

        interfaceInstanceArray = new Object[]{
                new FlowContextOptionImpl(flowExecutorConfig),
                flowContextPutDataOperation,
                new FlowContextGetDataOperationImpl(flowExecutorConfig, flowContextPutDataOperation),
                new FlowContextPutInstanceDataOperationImpl(flowExecutorConfig, flowContextPutDataOperation),
                new FlowContextExecuteOperationImpl(flowExecutorConfig)
        };
    }

    @Override
    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        String interfaceName = method.getDeclaringClass().getSimpleName();
        for(Object interfaceInstance:interfaceInstanceArray){
            Class interfaceClass = interfaceInstance.getClass().getInterfaces()[0];
            if(interfaceClass.getSimpleName().equalsIgnoreCase(interfaceName)){
                try {
                    return method.invoke(interfaceInstance, args);
                }catch (InvocationTargetException e){
                    Throwable targetException = e.getTargetException();
                    throw targetException;
                }
            }
        }
        throw new IllegalAccessError("不支持调用该方法!方法名:"+method.getName());
    }
}