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https://issues.apache.org/jira/browse/NIFI-13988?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Philipp Korniets updated NIFI-13988:
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Summary: ExcelReader - Use Starting Row schema strategy and string empty
values (was: ExcelReader - Use Start row schema strategy and NULL values)
> ExcelReader - Use Starting Row schema strategy and string empty values
> ----------------------------------------------------------------------
>
> Key: NIFI-13988
> URL: https://issues.apache.org/jira/browse/NIFI-13988
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 2.0.0
> Reporter: Philipp Korniets
> Priority: Major
> Attachments: Test workbook NiFi2_0.xlsx
>
>
> When Use Starting Row as schema strategy in ExcelReader it analyses first 10
> row. Problem arises with empty cells which can appear anywhere after 10 rows
> for *Numerical* columns, columns with string values handled correctly.
> So the cell *looks like* NULL, but actually is an empty string.
> File with example data attached.
> Field Exercise Price.
> Use Starting Row throws an error:
> {code:java}
> Caused by: java.lang.NumberFormatException: For input string: ""
> at
> java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:67)
> at java.base/java.lang.Long.parseLong(Long.java:719)
> at java.base/java.lang.Long.parseLong(Long.java:832)
> at
> org.apache.nifi.serialization.record.util.DataTypeUtils.toLong(DataTypeUtils.java:1391)
> at
> org.apache.nifi.serialization.record.util.DataTypeUtils.convertType(DataTypeUtils.java:213)
> at
> org.apache.nifi.serialization.record.util.DataTypeUtils.convertType(DataTypeUtils.java:174)
> at
> org.apache.nifi.excel.ExcelRecordReader.convert(ExcelRecordReader.java:170)
> at
> org.apache.nifi.excel.ExcelRecordReader.lambda$getCurrentRowValues$0(ExcelRecordReader.java:127)
> at
> java.base/java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:104)
> at
> java.base/java.util.stream.IntPipeline$Head.forEach(IntPipeline.java:617)
> at
> org.apache.nifi.excel.ExcelRecordReader.getCurrentRowValues(ExcelRecordReader.java:114)
> at
> org.apache.nifi.excel.ExcelRecordReader.nextRecord(ExcelRecordReader.java:84)
> ... 28 common frames omitted{code}
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