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OdinsonDocument.scala
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OdinsonDocument.scala
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package ai.lum.odinson
import java.io.File
import java.util.Date
import java.time.{ LocalDate, ZoneId }
import scala.collection.mutable.ArrayBuilder
import upickle.default._
import ai.lum.common.FileUtils._
import ai.lum.odinson.lucene.index.OdinsonIndexWriter
import ai.lum.odinson.utils.exceptions.OdinsonException
import com.typesafe.scalalogging.LazyLogging
case class Document(
id: String,
metadata: Seq[Field],
sentences: Seq[Sentence]
) extends LazyLogging {
def toJson: String = write(this)
def toPrettyJson: String = write(this, indent = 4)
def addMetadata(metadataIn: Seq[Field], append: Boolean): Document = {
// Warn about not-queryable StringFields
metadataIn
.collect {
case sf: StringField if !OdinsonIndexWriter.STRING_FIELD_EXCEPTIONS.contains(sf.name) => sf
}
.foreach { sf => logger.info(OdinsonIndexWriter.STRING_FIELD_WARNING(sf.name)) }
if (append) {
this.copy(metadata = metadata ++ metadataIn)
} else {
this.copy(metadata = metadataIn)
}
}
}
object Document {
implicit val rw: ReadWriter[Document] = macroRW
def fromJson(data: String): Document = {
read[Document](data)
}
def fromJson(f: File): Document = {
fromJson(f.readString())
}
}
case class Sentence(
numTokens: Int,
fields: Seq[Field]
) {
def toJson: String = write(this)
def toPrettyJson: String = write(this, indent = 4)
}
object Sentence {
implicit val rw: ReadWriter[Sentence] = macroRW
def fromJson(data: String): Sentence = {
read[Sentence](data)
}
}
sealed trait Field {
def name: String
def toJson: String = write(this)
def toPrettyJson: String = write(this, indent = 4)
}
object Field {
implicit val rw: ReadWriter[Field] = {
ReadWriter.merge(
TokensField.rw,
GraphField.rw,
StringField.rw,
DateField.rw,
NumberField.rw,
NestedField.rw
)
}
}
case class TokensField(
name: String,
tokens: Seq[String]
) extends Field
object TokensField {
implicit val rw: ReadWriter[TokensField] = macroRW
def fromJson(data: String): TokensField = {
read[TokensField](data)
}
}
case class GraphField(
name: String,
edges: Seq[(Int, Int, String)],
roots: Set[Int]
) extends Field {
def mkIncomingEdges(numTokens: Int): Array[Array[(Int, String)]] = {
val incoming = Array.fill(numTokens)(new ArrayBuilder.ofRef[(Int, String)])
for ((src, dst, label) <- edges) {
incoming(dst) += Tuple2(src, label)
}
incoming.map(_.result())
}
def mkOutgoingEdges(numTokens: Int): Array[Array[(Int, String)]] = {
val outgoing = Array.fill(numTokens)(new ArrayBuilder.ofRef[(Int, String)])
for ((src, dst, label) <- edges) {
outgoing(src) += Tuple2(dst, label)
}
outgoing.map(_.result())
}
}
object GraphField {
implicit val rw: ReadWriter[GraphField] = macroRW
def fromJson(data: String): GraphField = {
read[GraphField](data)
}
}
case class StringField(
name: String,
string: String
) extends Field
object StringField {
implicit val rw: ReadWriter[StringField] = macroRW
def fromJson(data: String): StringField = {
read[StringField](data)
}
}
case class DateField(
name: String,
date: String
) extends Field {
val localDate = LocalDate.parse(date)
}
object DateField {
implicit val rw: ReadWriter[DateField] = macroRW
def fromJson(data: String): DateField = {
read[DateField](data)
}
def fromDate(name: String, date: Date, store: Boolean = false): DateField = {
val localDate = date.toInstant.atZone(ZoneId.of("UTC")).toLocalDate
fromLocalDate(name, localDate)
}
def fromLocalDate(name: String, date: LocalDate, store: Boolean = false): DateField = {
DateField(name, date.toString)
}
}
case class NumberField(name: String, value: Double) extends Field
object NumberField {
implicit val rw: ReadWriter[NumberField] = macroRW
def fromJson(data: String): NumberField = {
read[NumberField](data)
}
}
case class NestedField(name: String, fields: Seq[Field]) extends Field
object NestedField {
implicit val rw: ReadWriter[NestedField] = macroRW
def fromJson(data: String): NestedField = {
read[NestedField](data)
}
}
/** Helper class for reading and writing metadata companion files.
* Specifically, if you want to make a json file to store document metadata,
* you can create an instance of this class, ensuring that the docId matches
* that of the corresponding document. Then you can serialize/deserialize
* easily. Also, note that this class plays well with the app that adds the
* metadata to the document: ai.lum.odinson.extra.AddMetadataToDocuments
*/
case class MetadataWrapper(docId: String, fields: Seq[Field]) {
def toJson: String = write(this)
}
object MetadataWrapper {
implicit val rw: ReadWriter[MetadataWrapper] = macroRW
def fromJson(data: String): MetadataWrapper = {
read[MetadataWrapper](data)
}
}