Open source - Shark work flow study the source code (b)source,source code

Shark work flow study the source code (b)

Org.enhydra.shark.Shark

Shark started in the engine, it should be configured to do the operation is configured Shark.configure ( "shark.conf"), according to the following sequence;

1) the system configuration used only once, If you have already configured, will not be directly returned to the configuration, as follows:

If (isConfigured) (

SharkEngineManager.getInstance (). GetCallbackUtilities (). Info (

"Trying to configure shark instance that is already configured !!!");

Return;

)

2) If not for the absolute path to the configuration file, the system will automatically obtain:

If (! ConfigFile.isAbsolute ()) (

ConfigFile = configFile.getAbsoluteFile ();

)

3) then the access properties, configuration and isConfigured set to 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) then SharkEngineManager configuration, which uses callback function, the manager of the factory manager and son to initialize and configure the future can be called directly:

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) Finally, the cache on the system configuration and LimitManager:

Shark.initCaches ();

Shark.reevaluateAssignments ();

Shark.initLimitManager ();

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