Examples of cascading.flow.Flow.openSource()

cascading.flow.Flow.openSource()
Method openSource opens the first source Tap. @return TupleIterator @throws IOException when


    Flow flow = getPlatform().getFlowConnector().connect( source, sink, pipe );


    flow.complete();


    validateLength( flow.openSource(), 10 ); // validate source, this once, as a sanity check
    validateLength( flow, 8, null );
    }


  @Test
  public void testSimpleChain() throws Exception

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    finally
      {
//      Thread.sleep( 60*60*1000 );
      }


    validateLength( flow.openSource(), 10 ); // validate source, this once, as a sanity check
    validateLength( flow, 8, null );
    }


  @Test
  public void testSimpleGroupOnBytes() throws Exception

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    assertEquals( "not equal: tuple.get(1)", "1 a", iterator.next().getObject( 1 ) );


    iterator.close();


    // confirm the tuple iterator can handle nulls from the source
    validateLength( flow.openSource(), 5 );
    }


  public class ResolvedScheme extends TextLine
    {
    private final Fields expectedFields;

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    flow.complete();


    validateLength( flow, results.length, 5 );


    // validate input parsing compares to expected, and results compare to expected
    TupleEntryIterator iterator = flow.openSource();


    int count = 0;
    while( iterator.hasNext() )
      {
      Tuple tuple = iterator.next().getTuple();

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