Examples of cascading.flow.FlowException

cascading.flow.FlowException
FlowException instances are thrown on errors when executing a Flow.

    catch( ProcessException exception )
      {
      if( exception.getCause() instanceof RuntimeException )
        throw (RuntimeException) exception.getCause();


      throw new FlowException( "could not call start on process", exception.getCause() );
      }
    }

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      {
      flowStats.markFailed( exception );
      if( exception.getCause() instanceof RuntimeException )
        throw (RuntimeException) exception.getCause();


      throw new FlowException( "could not call stop on process", exception.getCause() );
      }
    }

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      {
      flowStats.markFailed( exception );
      if( exception.getCause() instanceof RuntimeException )
        throw (RuntimeException) exception.getCause();


      throw new FlowException( "could not call complete on process", exception.getCause() );
      }
    }

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    catch( ProcessException exception )
      {
      if( exception.getCause() instanceof RuntimeException )
        throw (RuntimeException) exception.getCause();


      throw new FlowException( "could not call cleanup on process", exception.getCause() );
      }
    }

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    catch( ProcessException exception )
      {
      if( exception.getCause() instanceof RuntimeException )
        throw (RuntimeException) exception.getCause();


      throw new FlowException( "could not get process incoming dependency", exception.getCause() );
      }
    }

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    catch( ProcessException exception )
      {
      if( exception.getCause() instanceof RuntimeException )
        throw (RuntimeException) exception.getCause();


      throw new FlowException( "could not get process outgoing dependency", exception.getCause() );
      }
    }

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    conf.set( "cascading.flow.node.num", Integer.toString( flowNode.getOrdinal() ) );


    int parallelism = getParallelism( flowNode, conf );


    if( parallelism == 0 )
      throw new FlowException( getName(), "the default number of gather partitions must be set, see cascading.flow.FlowRuntimeProps" );


    Vertex vertex = newVertex( flowNode, conf, parallelism );


    for( FlowElement flowElement : sourceConfigs.keySet() )
      {

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      {
      return serializeBase64( object, conf, true );
      }
    catch( IOException exception )
      {
      throw new FlowException( "unable to pack object: " + object.getClass().getCanonicalName(), exception );
      }
    }

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      {
      priorConf = (Map<String, String>) HadoopUtil.deserializeBase64( property, conf, HashMap.class, true );
      }
    catch( IOException exception )
      {
      throw new FlowException( "unable to deserialize properties", exception );
      }


    return flowProcess.mergeMapIntoConfig( conf, priorConf );
    }

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      deleteTrapsIfReplace();
      deleteCheckpointsIfReplace();
      }
    catch( IOException exception )
      {
      throw new FlowException( "unable to delete sinks", exception );
      }


    registerHadoopShutdownHook( this );
    }

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Related Classes of cascading.flow.FlowException

cascading.cascade.Cascade

cascading.flow.hadoop.FlowMapper

cascading.flow.hadoop.FlowReducer

cascading.flow.hadoop.HadoopFlow

cascading.flow.hadoop.HadoopFlowStep

cascading.flow.hadoop.planner.HadoopFlowStepJob

cascading.flow.hadoop.ProcessFlow

cascading.flow.hadoop.stream.graph.HadoopMapStreamGraph

cascading.flow.hadoop.util.HadoopMRUtil

cascading.flow.hadoop.util.HadoopUtil

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