Examples of cascading.flow.FlowException

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

      {
      return path.getFileSystem( config );
      }
    catch( IOException exception )
      {
      throw new FlowException( "unable to get handle to underlying filesystem", exception );
      }
    }

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      {
      return FileSystem.getLocal( config );
      }
    catch( IOException exception )
      {
      throw new FlowException( "unable to get handle to underlying filesystem", exception );
      }
    }

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      {
      return FileSystem.get( config );
      }
    catch( IOException exception )
      {
      throw new FlowException( "unable to get handle to underlying filesystem", exception );
      }
    }

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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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      return (T) in.readObject();
      }
    catch( ClassNotFoundException exception )
      {
      throw new FlowException( "unable to deserialize data", exception );
      }
    finally
      {
      if( in != null )
        in.close();

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        {
        thread.join();
        }
      catch( InterruptedException exception )
        {
        throw new FlowException( "thread interrupted", exception );
        }


      if( throwable instanceof CascadingException )
        throw (CascadingException) throwable;

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      sourceModified = source.getModifiedTime( confCopy );


      // source modified returns zero if does not exist
      // this should minimize number of times we touch any file meta-data server
      if( sourceModified == 0 && !source.resourceExists( confCopy ) )
        throw new FlowException( "source does not exist: " + source );


      if( sinkModified < sourceModified )
        return sourceModified;
      }

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      }
    catch( Exception exception )
      {
      LOG.error( "unable to instantiate type: {}, with exception: {}", type.getName(), exception );


      throw new FlowException( "unable to instantiate type: " + type.getName(), exception );
      }
    }

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        count++;
        }
      }


    if( count > 1 )
      throw new FlowException( "Tap may not have more than one incoming Scope" );


    // this allows the incoming to be passed through to the outgoing
    Fields incomingFields = incomingScopes.size() == 0 ? null : incomingScopes.iterator().next().getIncomingTapFields();


    if( incomingFields != null &&

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


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

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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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