TSVInput infinite loop and optional binding values not handled
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Key: JENA-72
URL: https://issues.apache.org/jira/browse/JENA-72
Project: Jena
Issue Type: Bug
Components: ARQ
Reporter: Laurent Pellegrino
TSVInput that has been proposed in JENA-69 contains two bugs:
1) When you attempt to read an empty ResultSet (i.e. a ResultSet that contain
no binding) the code will enter in an infinite loop. This issue is really
simple to solve.
2) Optional binding values are not supported, especially with the following
ResultSet:
(resultset (?a ?b ?c)
(row (?a 1) (?c 4))
(row (?a 1) (?b 2) (?c 3)))
it will be serialized as:
a b c
1 4
1 2 3
When we call tokenizer.next(), we get the next token. The problem is that we
are not aware that the tokenizer has consumed two separators (\t), and we
cannot detect that the value 4 is associated to the variable c.
Any idea to handle it?
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