[jira] [Updated] (NIFI-5525) CSVRecordReader fails with StringIndexOutOfBoundsException when field is a double quote

["Vadim (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-5525?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vadim updated NIFI-5525:
------------------------
    Labels: easyfix pull-request-available  (was: easyfix)

> CSVRecordReader fails with StringIndexOutOfBoundsException when field is a double quote
> ---------------------------------------------------------------------------------------
>
>                 Key: NIFI-5525
>                 URL: https://issues.apache.org/jira/browse/NIFI-5525
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 1.7.1
>            Reporter: Vadim
>            Priority: Major
>              Labels: easyfix, pull-request-available
>
> *Bug description:*
> When trying to parse a CSV file given in RFC4180 format and one of its fields is a double quote, CSVRecordReader fails with the following exception:
> {quote}java.lang.StringIndexOutOfBoundsException: String index out of range: -1
> at java.lang.String.substring(String.java:1967)
> at org.apache.nifi.csv.AbstractCSVRecordReader.convert(AbstractCSVRecordReader.java:82)
> at org.apache.nifi.csv.CSVRecordReader.nextRecord(CSVRecordReader.java:102)
> at org.apache.nifi.serialization.RecordReader.nextRecord(RecordReader.java:50)
> at org.apache.nifi.csv.TestCSVRecordReader.testQuote(TestCSVRecordReader.java:610)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
> at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
> at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
> at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
> {quote}
>  
> Note, that according to RFC4180:
>  
> If double-quotes are used to enclose fields, then a double-quote
>        appearing inside a field must be escaped by preceding it with
>        another double quote.
> [https://tools.ietf.org/html/rfc4180#page-2]
>  
> Then a field whose value is a double quote character would be encoded like this:
> """"
> (4 double quote characters)  
> *How to reproduce*
> Add the following method to TestCSVRecordReader.java and run the test:
>  
> {code:java}
> @Test
> public void testQuote() throws IOException, MalformedRecordException {
> final CSVFormat format = CSVFormat.RFC4180.withFirstRecordAsHeader().withTrim().withQuote('"');
> final String text = "\"name\"\n\"\"\"\"";
> final List<RecordField> fields = new ArrayList<>();
> fields.add(new RecordField("name", RecordFieldType.STRING.getDataType()));
> final RecordSchema schema = new SimpleRecordSchema(fields);
> try (final InputStream bais = new ByteArrayInputStream(text.getBytes(StandardCharsets.UTF_8));
> final CSVRecordReader reader = new CSVRecordReader(bais, Mockito.mock(ComponentLog.class), schema, format, true, false,
> RecordFieldType.DATE.getDefaultFormat(), RecordFieldType.TIME.getDefaultFormat(), RecordFieldType.TIMESTAMP.getDefaultFormat(), StandardCharsets.UTF_8.name())) {
> final Record record = reader.nextRecord();
> final String name = (String)record.getValue("name");
> assertEquals("\"", name);
> }
> }
> {code}
>  
>  



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