org.enhydra.shark.Shark 
  
在启动Shark引擎前,要对它进行配置,配置要做的操作就是Shark.configure("shark.conf"),下面按先后顺序说明; 
  
1) 整个系统只用配置一次,如果已经配置过,将不会再配置而直接返回,如下: 
if (isConfigured) { 
     SharkEngineManager.getInstance().getCallbackUtilities().info( 
            "Trying to configure shark instance that is already configured !!!"); 
         return; 
      } 
  
2)如果没有为配置文件给绝对路径,系统会自动进行获取: 
if (!configFile.isAbsolute()) { 
         configFile=configFile.getAbsoluteFile(); 
      } 
  
3)然后就是获取properties,进行配置,并将isConfigured设置为true: 
try { 
            fis=new FileInputStream(configFile); 
            Properties props=new Properties(); 
            props.load(fis); 
            fis.close(); 
            adjustSharkProperties(props); 
         } catch (Exception ex) { 
            throw new Error ("Something went wrong during reading of configuration from the file"); 
         } 
isConfigured=true; 
  
4)然后对SharkEngineManager进行配置,它利用回调函数,对该管理器的各子管理器和工厂进行初始化和配置,以后可以直接调用: 
try { 
         callbackUtilities=(CallbackUtil)cl.loadClass(cbuClassName).newInstance(); 
         callbackUtilities.setProperties(properties); 
         objectFactory =(SharkObjectFactory)cl.loadClass(objectFactoryClassName).newInstance(); 
         toolAgentManager = (ToolAgentManager) cl.loadClass(tamClassName).newInstance(); 
         xmlInterface=new XMLInterfaceForJDK13(); 
      } catch (Throwable ex) { 
         throw new Error("Problems instantiating core managers"); 
      } 
  
5)最后,对系统的缓存和LimitManager进行配置: 
shark.initCaches(); 
shark.reevaluateAssignments(); 
shark.initLimitManager(); 
  
hongbo781202,又名HongSoft,职业程序员,研究领域:1)基于工作流的BPM系统研究2)基于JAVA的信息安全 
技术.欢迎和大家讨论JAVA相关各方面技术和市场问题 [email protected]  
 
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