Drools访问生成的java文件 [英] Drools accessing generated java files

问题描述

我正在通过Mockito测试执行Drools规则。该规则在运行时失败，并使用具有一些长任意名称的java文件的行号报告错误。似乎Drools即时生成Java文件并注入JVM。但是当我在光盘上搜索这些文件时，我找不到任何文件。有没有办法将它们存储在光盘上？

I am executing Drools rule through Mockito test. The rule fails at run time reporting the error with a line number of a java file having some long arbitrary name. It seems that Drools generates java files on the fly and injects into JVM. But when I search those files on my disc I don't find any. Is there a way I could store them on my disc?

推荐答案

得到解决方案：

您可以通过两种方式转储Drools生成的java文件。

You can dump the Drools generated java files in two ways.

1）通过命令行：

-Ddrools.dump.dir="target/dumpDir"

例如我使用maven命令执行规则所以它将是

e.g. I use maven command to execute the rule so it would be

mvn -Ddrools.dump.dir="target/dumpDir" -Dtest=DroolsRuleTest test

2）通过API

public class FileKnowledgeBaseFactory implements KnowledgeBaseFactory {
    private Log log = LogFactory.getLog(FileKnowledgeBaseFactory.class);

    public KnowledgeBase load(String drlFullFilename) {
        KnowledgeBuilderConfiguration config = KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration();
        config.setOption(DumpDirOption.get(new File("target/dumpDir")));

        KnowledgeBuilder knowledgeBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(config);

        ....
        ....
    }
}

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