Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/14102#discussion_r74216088 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/json/JacksonParser.scala --- @@ -35,184 +34,330 @@ import org.apache.spark.util.Utils private[json] class SparkSQLJsonProcessingException(msg: String) extends RuntimeException(msg) -object JacksonParser extends Logging { +class JacksonParser( + schema: StructType, + columnNameOfCorruptRecord: String, + options: JSONOptions) extends Logging { - def parse( - input: RDD[String], - schema: StructType, - columnNameOfCorruptRecords: String, - configOptions: JSONOptions): RDD[InternalRow] = { + import com.fasterxml.jackson.core.JsonToken._ - input.mapPartitions { iter => - parseJson(iter, schema, columnNameOfCorruptRecords, configOptions) + // A `ValueConverter` is responsible for converting a value from `JsonParser` + // to a value in a field for `InternalRow`. + private type ValueConverter = (JsonParser) => Any + + // `ValueConverter`s for the root schema for all fields in the schema + private val rootConverter: ValueConverter = makeRootConverter(schema) + + private val factory = new JsonFactory() + options.setJacksonOptions(factory) + + private def failedConversion( + parser: JsonParser, + dataType: DataType): Any = parser.getCurrentToken match { + case VALUE_STRING if parser.getTextLength < 1 => + // If conversion is failed, this produces `null` rather than + // returning empty string. This will protect the mismatch of types. --- End diff -- `rather than throw exception`?
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