GraphExecutor class?

bretonf

• September 10, 2008 00:00

• Answered

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Hello,

For our developments, we've made our own RunGraph class. We've been using the GraphExecutor class introduced in cloverETL engine 2.4, in order to, well, run the graphs.
It seems to have disappeared from the newest version, 2.5.
I have looked through the change log, but didn't see anything about this.

Has another class replaced it? Which classes have a method for calling the runGraph() method to run the engine?

Same question for the class CloverURLStreamHandlerFactory, which seems to have been removed in the latest version too.

• 

  hwhwhw

  • September 10, 2008 08:44

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  It changed greatly between the various versions,
  I had to track its various versions,
  it has been carrying out the internal structure of the optimization and therefore not compatible between different versions.
• 

  mzatopek

  • September 27, 2008 09:47

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  Yes, the graph launching procedure was essentially reimplemented due clover server needs (check it out at http://www.cloveretl.org/clover-server/). Unfortunately public change log doesn't usually contain implementation updates. Please, revise your code according our runGraph main class.
  
  I have prepared small extract from the runGraph launcher:
  
  //clover engine initialization
  EngineInitializer.initEngine(pluginsRootDirectory, configFileName, logHost);
  //build graph from xml
  TransformationGraph graph = TransformationGraphXMLReaderWriter.loadGraph(in, runtimeContext.getAdditionalProperties());
  //prepare default runtime context
  GraphRuntimeContext runtimeContext = new GraphRuntimeContext();
  //initialize graph
  EngineInitializer.initGraph(graph, runtimeContext);
  //prepare simple thread manager
  IThreadManager threadManager = new SimpleThreadManager();
  //prepare watchdog for running graph
  WatchDog watchDog = new WatchDog(graph, runtimeContext);
  //launch graph
  Future<Result> futureResult = threadManager.executeWatchDog(watchDog);
  //wait for result
  Result result = futureResult.get();
  //release all graph resources
  graph.free();

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