Repository: spark Updated Branches: refs/heads/master caf392025 -> 57e1da394
[SPARK-16548][SQL] Inconsistent error handling in JSON parsing SQL functions ## What changes were proposed in this pull request? change to using Jackson's `com.fasterxml.jackson.core.JsonFactory` public JsonParser createParser(String content) ## How was this patch tested? existing unit tests Please review http://spark.apache.org/contributing.html before opening a pull request. Author: Eric Wasserman <er...@sgn.com> Closes #17693 from ewasserman/SPARK-20314. Project: http://git-wip-us.apache.org/repos/asf/spark/repo Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/57e1da39 Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/57e1da39 Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/57e1da39 Branch: refs/heads/master Commit: 57e1da39464131329318b723caa54df9f55fa54f Parents: caf3920 Author: Eric Wasserman <er...@sgn.com> Authored: Wed Apr 26 11:42:43 2017 +0800 Committer: Wenchen Fan <wenc...@databricks.com> Committed: Wed Apr 26 11:42:43 2017 +0800 ---------------------------------------------------------------------- .../sql/catalyst/expressions/jsonExpressions.scala | 12 +++++++++--- .../expressions/JsonExpressionsSuite.scala | 17 +++++++++++++++++ 2 files changed, 26 insertions(+), 3 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/spark/blob/57e1da39/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/jsonExpressions.scala ---------------------------------------------------------------------- diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/jsonExpressions.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/jsonExpressions.scala index df4d406..9fb0ea6 100644 --- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/jsonExpressions.scala +++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/jsonExpressions.scala @@ -17,7 +17,7 @@ package org.apache.spark.sql.catalyst.expressions -import java.io.{ByteArrayOutputStream, CharArrayWriter, StringWriter} +import java.io.{ByteArrayInputStream, ByteArrayOutputStream, CharArrayWriter, InputStreamReader, StringWriter} import scala.util.parsing.combinator.RegexParsers @@ -149,7 +149,10 @@ case class GetJsonObject(json: Expression, path: Expression) if (parsed.isDefined) { try { - Utils.tryWithResource(jsonFactory.createParser(jsonStr.getBytes)) { parser => + /* We know the bytes are UTF-8 encoded. Pass a Reader to avoid having Jackson + detect character encoding which could fail for some malformed strings */ + Utils.tryWithResource(jsonFactory.createParser(new InputStreamReader( + new ByteArrayInputStream(jsonStr.getBytes), "UTF-8"))) { parser => val output = new ByteArrayOutputStream() val matched = Utils.tryWithResource( jsonFactory.createGenerator(output, JsonEncoding.UTF8)) { generator => @@ -393,7 +396,10 @@ case class JsonTuple(children: Seq[Expression]) } try { - Utils.tryWithResource(jsonFactory.createParser(json.getBytes)) { + /* We know the bytes are UTF-8 encoded. Pass a Reader to avoid having Jackson + detect character encoding which could fail for some malformed strings */ + Utils.tryWithResource(jsonFactory.createParser(new InputStreamReader( + new ByteArrayInputStream(json.getBytes), "UTF-8"))) { parser => parseRow(parser, input) } } catch { http://git-wip-us.apache.org/repos/asf/spark/blob/57e1da39/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/JsonExpressionsSuite.scala ---------------------------------------------------------------------- diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/JsonExpressionsSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/JsonExpressionsSuite.scala index c5b7223..4402ad4 100644 --- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/JsonExpressionsSuite.scala +++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/JsonExpressionsSuite.scala @@ -39,6 +39,10 @@ class JsonExpressionsSuite extends SparkFunSuite with ExpressionEvalHelper { |"fb:testid":"1234"} |""".stripMargin + /* invalid json with leading nulls would trigger java.io.CharConversionException + in Jackson's JsonFactory.createParser(byte[]) due to RFC-4627 encoding detection */ + val badJson = "\0\0\0A\1AAA" + test("$.store.bicycle") { checkEvaluation( GetJsonObject(Literal(json), Literal("$.store.bicycle")), @@ -224,6 +228,13 @@ class JsonExpressionsSuite extends SparkFunSuite with ExpressionEvalHelper { null) } + test("SPARK-16548: character conversion") { + checkEvaluation( + GetJsonObject(Literal(badJson), Literal("$.a")), + null + ) + } + test("non foldable literal") { checkEvaluation( GetJsonObject(NonFoldableLiteral(json), NonFoldableLiteral("$.fb:testid")), @@ -340,6 +351,12 @@ class JsonExpressionsSuite extends SparkFunSuite with ExpressionEvalHelper { InternalRow(null, null, null, null, null)) } + test("SPARK-16548: json_tuple - invalid json with leading nulls") { + checkJsonTuple( + JsonTuple(Literal(badJson) :: jsonTupleQuery), + InternalRow(null, null, null, null, null)) + } + test("json_tuple - preserve newlines") { checkJsonTuple( JsonTuple(Literal("{\"a\":\"b\nc\"}") :: Literal("a") :: Nil), --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@spark.apache.org For additional commands, e-mail: commits-h...@spark.apache.org