调试从Eclipse中在ScriptEngine中运行的Groovy脚本 [英] Debugging Groovy scripts running in a ScriptEngine from Eclipse

问题描述

我有一个Groovy脚本，运行如下：

 文件脚本文件= ...; 
 ScriptEngine engine = ...; 
 String script = FileUtils.readFileToString（scriptFile）; 
对象evalResult = engine.eval（脚本，绑定）; 
  

不出所料，脚本文件中设置的断点不会触发。我可以改变什么来使其工作？该脚本需要在较大程序（无单独启动配置）的上下文中运行，并通过 ScriptEngine 运行，该文件仅在运行时已知。

解决方案

我使用这个hack：我已经定义了一个Java类 Debugger 看起来像这样：

  public class Debugger {
 
 private static final Logger log = LoggerFactory.getLogger （Debugger.class）; 
 
 / ** 
 *将这个方法调用到Java调试器的任何地方。 
 * 
 *< p>有时候，您有代码可能最终被执行，或者你有一个地方
 *你想要停止但没有代码行。 
 * 
 *< p>在这种情况下，请使用此方法。 
 * 
 *< p>不要忘记设置断点，首先:-) 
 * * / 
 public static void stopInDebugger（）{
 log .error（请在Debugger.stopInDebugger（）中设置一个断点，然后再试一次你刚刚做的！）; 
} 
} 
  

我有一个断点在$ > log.error

现在，我可以把这一行放入我想要断点的脚本中：

  Debugger.stopInDebugger（）; 
  

认为，它不允许我轻松地通过脚本，但它比没有更好。 / p>

I have a Groovy script which is run like this:

File scriptFile = ...;
ScriptEngine engine = ...;
String script = FileUtils.readFileToString(scriptFile);
Object evalResult = engine.eval(script, bindings);

Unsurprisingly, breakpoint set in the script file doesn't trigger. What can I change to make it work? The script needs to be run in the context of the larger program (no separate launch configuration), and through a ScriptEngine, and the file is only known at runtime.

解决方案

I'm using this hack: I've defined a Java class Debugger which looks like this:

public class Debugger {

    private static final Logger log = LoggerFactory.getLogger( Debugger.class );

    /**
     * Invoke this method anywhere to end up in the Java debugger.
     * 
     * <p>Sometimes, you have code that might eventually be executed or you have a place
     * where you want to stop but no code line.
     * 
     * <p>In these case, use this method.
     * 
     * <p>Don't forget to set a breakpoint, first :-)
     * */
    public static void stopInDebugger() {
        log.error( "Please set a breakpoint in Debugger.stopInDebugger() and try again whatever you just did!" );
    }
}

I have a breakpoint in the log.error line in Ecipse.

Now, I can put this line into the script where I want a breakpoint:

Debugger.stopInDebugger();

Granted, it doesn't allow me to easily step through the script but it's better than nothing.

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