Java Drools 知识库已弃用
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原文地址: http://stackoverflow.com/questions/23784652/
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Drools KnowledgeBase Deprecated
提问by Jacob Schoen
I am integrating the Drools Rules engine into my application. 99% of the examples I have found to get started look like:
我正在将 Drools 规则引擎集成到我的应用程序中。我发现 99% 的入门示例如下所示：
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add( ResourceFactory.newUrlResource( url ),
ResourceType.DRL );
if ( kbuilder.hasErrors() ) {
System.err.println( builder.getErrors().toString() );
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages( builder.getKnowledgePackages() );
StatefulKnowledgeSession ksession = knowledgeBase.newStatefulKnowledgeSession();
ksession.insert( new Fibonacci( 10 ) );
ksession.fireAllRules();
ksession.dispose();
I have something similar working, but my question is that KnowledgeBaseis marked as deprecated, which is a red flag to me that I am doing it wrong. Now KnowledgeBaseFactory.newKnowledgeBase()is not marked deprecated, but it also returns a KnowledgeBasetype.
我有类似的工作，但我的问题是KnowledgeBase被标记为已弃用，这对我来说是一个危险信号，我做错了。现在KnowledgeBaseFactory.newKnowledgeBase()没有被标记为弃用，但它也返回一个KnowledgeBase类型。
So what should I be using since KnowledgeBase is deprecated?
那么，由于不推荐使用知识库，我应该使用什么？
采纳答案by laune
This is the code I've found to work with 6.x:
这是我发现适用于 6.x 的代码：
KieServices kieServices = KieServices.Factory.get();
KieFileSystem kfs = kieServices.newKieFileSystem();
FileInputStream fis = new FileInputStream( pathToSomeDrl );
kfs.write( "src/main/resources/simple.drl",
kieServices.getResources().newInputStreamResource( fis ) );
KieBuilder kieBuilder = kieServices.newKieBuilder( kfs ).buildAll();
Results results = kieBuilder.getResults();
if( results.hasMessages( Message.Level.ERROR ) ){
System.out.println( results.getMessages() );
throw new IllegalStateException( "### errors ###" );
}
KieContainer kieContainer =
kieServices.newKieContainer( kieServices.getRepository().getDefaultReleaseId() );
KieBase kieBase = kieContainer.getKieBase();
KieSession kieSession = kieContainer.newKieSession();
References to KnowledgeBasehave remained in the documentation, but it is indeed deprecated.
参考文献KnowledgeBase保留在文档中，但它确实已被弃用。
