运行 Jolie 程序在 Spring Boot 中使用 Interpreter 时出现未知运行错误

Unknown operation error when running Jolie program using Interpreter in Spring Boot

不久前,我得到了关于如何结合 Jolie 和 Spring 引导功能的 问题的答案。我已尝试在 Jolie 中使用 LocalCommChannel class 和本地 inputPort 来实施建议的解决方案,但不幸的是,无法识别我在请求中传递的操作。下面是我的 Spring 启动应用程序,一个尝试 运行 解释器和 Jolie 程序的简单控制器。

App.java

@SpringBootApplication
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class, args);
    }
}

HelloController.java

@RestController
public class HelloController {
    @RequestMapping("/")
    String hello() {
        String jh = System.getenv( "JOLIE_HOME" );
        String arg[] = new String[]{
            "-l",
            ".\lib\*;$JOLIE_HOME\lib;$JOLIE_HOME\javaServices\*;$JOLIE_HOME\extensions\*".replace("$JOLIE_HOME", jh),
            "-i",
            "$JOLIE_HOME\include".replace("$JOLIE_HOME", jh),
            "main.ol"
        };
        try {
            final Interpreter interpreter = new Interpreter(arg, HelloController.class.getClassLoader(), null);

            Value v = Value.create();
            v.setFirstChild( "number", 5 );
            CommMessage request = CommMessage.createRequest( "twice", "/", v );
            LocalCommChannel c = interpreter.commCore().getLocalCommChannel();
            c.send( request );
            CommMessage response = c.recvResponseFor( request );
            if ( response.isFault() ) {
                System.out.println("thrown response.fault()");
                throw response.fault();
            }
            return response.value().toString();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "Bad result";
    }
}

main.ol

include "console.iol"
include "runtime.iol"

execution { concurrent }

type TwiceRequest: void {
    .number: int
}

type TwiceResponse: void {
    .result: int
}

interface LocalInterface {
    RequestResponse:
        twice(TwiceRequest)(TwiceResponse)
}

inputPort TwiceIP {
    Location: "local"
    Interfaces: LocalInterface
}

init
{
    getLocalLocation@Runtime()( TwiceIP.location )
}

main {
    [twice( request )( response )] {
        println@Console("Hello World")();
        response.result = request.number * 2
    }
}

输出

2019-07-07 18:20:53.315  WARN 19236 --- [       Thread-3] Jolie : [main.ol] Received 
a message for operation twice, not specified in the input port LocalInputPort 
at the receiving service. Sending IOException to the caller.
thrown response.fault()
jolie.runtime.FaultException: IOException: Invalid operation: twice
    at jolie.net.CommCore$CommChannelHandlerRunnable.handleMessage(CommCore.java:594)
    at jolie.net.CommCore$CommChannelHandlerRunnable.run(CommCore.java:620)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

我试图跟踪我的程序经过了哪些 Jolie classes 和函数,我注意到当调用 getLocalCommChannel() 时,它创建了新的 LocalListener,它创建了全新的空接口 InputPort,所以我不知道 twice 操作如何可见。我怀疑我可能不得不在 CommCore 中使用 addLocalInputPort() 或在 LocalListener 中使用 mergeInterface() 并自己进行配置,但我希望 Jolie 可以在我不采取行动的情况下解决这个问题。

PS:是否有任何有关 Jolie 核心 Java class 的在线文档,或者最好且唯一的选择是阅读 github 上的代码?

在Java代码中:

  • 您没有使用 replaceAll,也没有像我原来的那样转义 $ post:http://fmontesi.github.io/2015/01/30/running-jolie-inside-of-java.html
  • 您没有启动解释器。自从我写了我的原始博客 post 以来,实际上有一个新的更漂亮的界面:你可以调用 interpreter.start(),这 returns 你可以等待直到解释器准备好接收消息.

在朱莉代码中:

  • 您不需要调用运行时来使用本地位置。
  • 您在发送响应后为 request-response 操作 twice 进行了计算(注意放置方括号的位置)。

这是一个对我有用的例子。请注意,我使用的是 : 而不是 ;作为参数中的路径分隔符(我正在 Linux 上进行测试),您可能需要更改它。

Example.java

public class Example
{
    public static void main( String[] args )
    {
        String jh = System.getenv( "JOLIE_HOME" );
        String arg[] = {
            "-l",
            "./lib/*:$JOLIE_HOME/lib:$JOLIE_HOME/javaServices/*:$JOLIE_HOME/extensions/*".replaceAll("\$JOLIE_HOME", jh),
            "-i",
            "$JOLIE_HOME/include".replaceAll("\$JOLIE_HOME", jh),
            "main.ol"
        };
        try {
            final Interpreter interpreter = new Interpreter(arg, Example.class.getClassLoader(), null);
            Exception e = interpreter.start().get();
            if ( e != null )
                throw e;

            Value v = Value.create();
            v.setFirstChild( "number", 5 );
            CommMessage request = CommMessage.createRequest( "twice", "/", v );
            LocalCommChannel c = interpreter.commCore().getLocalCommChannel();
            c.send( request );
            CommMessage response = c.recvResponseFor( request ).get();
            if ( response.isFault() ) {
                System.out.println("thrown response.fault()");
                throw response.fault();
            }
            System.out.println( response.value().getFirstChild( "result" ).strValue() );
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

main.ol

include "console.iol"

execution { concurrent }

type TwiceRequest: void {
    .number: int
}

type TwiceResponse: void {
    .result: int
}

interface LocalInterface {
    RequestResponse:
        twice(TwiceRequest)(TwiceResponse)
}

inputPort TwiceIP {
    Location: "local"
    Interfaces: LocalInterface
}

main {
    [twice( request )( response ) {
        println@Console("Hello World")();
        response.result = request.number * 2
    }]
}

希望对您有所帮助!