• 反射执行器
• shell执行器
• 占位符替换功能 

以下示例代码演示反射执行器使用：

@Service
public class CustomExecutable {

    public Object execute(Integer request, Integer result) {
        System.out.println("custom1 executed " + request + " result = " + result);
        return new Exception("hello, will passed by smart-flow engine.");
    }
}

@Service
public class CustomExecutable2 {

    public static void execute(Integer request, int result, Exception customEx) {
        int a = 10;
        int b = 12;
        double d = 12;
        System.out.println("custom3 executed " + request + " result = " + result + " customExMsg = " + customEx.getMessage());
        System.out.println(a + b + d);
    }
}

业务流程分为2步，CustomExecutable接收出入参数，然后返回一个异常对象，然后CustomExecutable2接受出入参数以及步骤1中返回值异常对象。

<pipeline name="example">
    <component execute="reflect"
            reflect.target="customExecutable"
            reflect.execute-method="execute" reflect.result-id="customEx"/>
    <component execute="reflect"
               reflect.target="customExecutable2"
               reflect.execute-method="execute"/>
</pipelin>

以上配置使用了短语为reflect的反射执行器，为步骤1设置了执行目标customExecutable与执行方法execute，同时设置了返回值id为customEx, 步骤2设置与1同，区别在于未设置返回值id。

二进制执行包

二进制执行包基于增强插件开发，它作为一个新的尝试：在项目外解析并执行smart-flow的流程文件。

./smart-flow.sh -f ../../flow-example-simple-shell.xml -t

===================== start execute shell step1 ============================================
/Library/Java/JavaVirtualMachines/jdk-13.0.1.jdk/Contents/Home
=====================  end  execute shell step1 ============================================
===================== start execute shell step2 ============================================
hello world!!!
=====================  end  execute shell step2 ============================================
===================== start execute shell step3 ============================================
a
=====================  end  execute shell step3 ============================================
invoke trace tree:

flow-engine##testEngine escaped 27ms
|--- subprocess1  escaped 27ms
    |--- shell@step1  escaped 14ms
    |--- shell@step2  escaped 5ms
    |--- shell@step3  escaped 5ms