mayur mohan created CAMEL-24546:
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Summary: camel-csv: wrap CSV parse IOException with diagnostic
message in CsvUnmarshaller
Key: CAMEL-24546
URL: https://issues.apache.org/jira/browse/CAMEL-24546
Project: Camel
Issue Type: Improvement
Reporter: mayur mohan
When camel-csv unmarshal encounters malformed CSV (e.g. a quoted field with
extra characters after the closing quote), Apache Commons CSV throws a raw
IOException with a technical message that is hard to diagnose:
java.io.IOException: (line 1) invalid char between encapsulated token and
delimiter
at org.apache.commons.csv.Lexer.parseEncapsulatedToken(Lexer.java:281)
at org.apache.commons.csv.CSVParser.createHeaders(CSVParser.java:483)
at
org.apache.camel.dataformat.csv.CsvUnmarshaller$BulkCsvUnmarshaller.unmarshal(CsvUnmarshaller.java:105)
at
org.apache.camel.dataformat.csv.CsvDataFormat.unmarshal(CsvDataFormat.java:95)
The fix wraps the IOException in CsvUnmarshaller (both BulkCsvUnmarshaller and
StreamCsvUnmarshaller) with a diagnostic message identifying the root cause and
guiding operators to check their delimiter and quote character configuration.
Error message after fix:
CSV parse failed: (line 1) invalid char between encapsulated token and
delimiter. A quoted field has extra characters after the closing quote and
before the delimiter (example: "abc"x,def). Check delimiter, quote character,
and escaped quotes ("").
This is a cosmetic/diagnostic-only change. No behavior, API, or data format
change.
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