Drools Eclipse Plugin Audit View

Rule Log Format

Audit View 不是运行时使用的，他是一个查看 Rule 执行日志的工具。
首先看一下 Rule 执行的日志的格式

<object-stream>
<org.drools.core.audit.WorkingMemoryLog>
  <version>6.1</version>
  <events>
    <org.drools.core.audit.event.ObjectLogEvent>
      <type>1</type>
      <factId>1</factId>
      <objectToString>com.secbro.drools.model.Customer@660f0c</objectToString>
    </org.drools.core.audit.event.ObjectLogEvent>
    <org.drools.core.audit.event.ObjectLogEvent>
      <type>1</type>
      <factId>2</factId>
      <objectToString>com.secbro.drools.model.Customer@23b8d9f3</objectToString>
    </org.drools.core.audit.event.ObjectLogEvent>
    <org.drools.core.audit.event.ActivationLogEvent>
      <type>4</type>
      <activationId>two same objects [2, 1]</activationId>
      <rule>two same objects</rule>
      <declarations>$secondCustomer=com.secbro.drools.model.Customer@660f0c; $firstCustomer=com.secbro.drools.model.Customer@23b8d9f3</declarations>
      <factHandleIds>2,1</factHandleIds>
    </org.drools.core.audit.event.ActivationLogEvent>
    <org.drools.core.audit.event.ActivationLogEvent>
      <type>6</type>
      <activationId>two same objects [2, 1]</activationId>
      <rule>two same objects</rule>
      <declarations>$secondCustomer=com.secbro.drools.model.Customer@660f0c; $firstCustomer=com.secbro.drools.model.Customer@23b8d9f3</declarations>
      <factHandleIds>2,1</factHandleIds>
    </org.drools.core.audit.event.ActivationLogEvent>
    <org.drools.core.audit.event.ActivationLogEvent>
      <type>7</type>
      <activationId>two same objects [2, 1]</activationId>
      <rule>two same objects</rule>
      <declarations>$secondCustomer=com.secbro.drools.model.Customer@660f0c; $firstCustomer=com.secbro.drools.model.Customer@23b8d9f3</declarations>
      <factHandleIds>2,1</factHandleIds>
    </org.drools.core.audit.event.ActivationLogEvent>
  </events>
</org.drools.core.audit.WorkingMemoryLog>
</object-stream>

可以看到，Rule 的执行日志并不是 Plain Text，而是有着特定格式的 XML 。也就意味着其是可以被很多的解析并展示的，Drools Eclipse Plugin Audit View 就是查看此文件的工具。

Aduit View

上边的日志文件打开之后会展示出上面的样子，文字前面的小图标对应不同的事件：

如何生成日志

KieServices kieServices = KieServices.get();
KieContainer kieContainer = kieServices.getKieClasspathContainer();
KieSession kieSession = kieContainer.newKieSession("all-rules");
KieRuntimeLogger logger = kieServices.getLoggers().newFileLogger( kieSession, "./helloworld" );

new一个KieRuntimeLogger 之后，就会自动生成日志。