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Use 'Numeric' instead of 'Float' as BQ column type when field type in…
… the json schema is number (close #112)
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28 changes: 28 additions & 0 deletions
28
...src/main/scala/com.snowplowanalytics/iglu.schemaddl/jsonschema/suggestion/baseTypes.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| package com.snowplowanalytics.iglu.schemaddl.jsonschema.suggestion | ||
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| object baseTypes { | ||
| sealed trait BaseType extends Product with Serializable | ||
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| object BaseType { | ||
| case object Double extends BaseType | ||
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| case object Int32 extends BaseType | ||
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| case object Int64 extends BaseType | ||
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| case class Decimal(precision: Int, scale: Int) extends BaseType | ||
| } | ||
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| sealed trait NullableWrapper | ||
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| object NullableWrapper { | ||
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| case class NullableValue(`type`: BaseType) extends NullableWrapper | ||
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| case class NotNullValue(`type`: BaseType) extends NullableWrapper | ||
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| def fromBool(`type`: BaseType, nullable: Boolean): NullableWrapper = | ||
| if (nullable) NullableWrapper.NullableValue(`type`) | ||
| else NullableWrapper.NotNullValue(`type`) | ||
| } | ||
| } |
71 changes: 71 additions & 0 deletions
71
.../src/main/scala/com.snowplowanalytics/iglu.schemaddl/jsonschema/suggestion/decimals.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| package com.snowplowanalytics.iglu.schemaddl.jsonschema.suggestion | ||
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| import baseTypes._ | ||
| import io.circe.Json | ||
| import com.snowplowanalytics.iglu.schemaddl.jsonschema.properties.NumberProperty | ||
| import com.snowplowanalytics.iglu.schemaddl.jsonschema.Schema | ||
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| object decimals { | ||
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| def integerType(schema: Schema): BaseType = | ||
| (schema.minimum, schema.maximum) match { | ||
| case (Some(min), Some(max)) => | ||
| val minDecimal = min.getAsDecimal | ||
| val maxDecimal = max.getAsDecimal | ||
| if (maxDecimal <= Int.MaxValue && minDecimal >= Int.MinValue) BaseType.Int32 | ||
| else if (maxDecimal <= Long.MaxValue && minDecimal >= Long.MinValue) BaseType.Int64 | ||
| else BaseType.Decimal( | ||
| (maxDecimal.precision - maxDecimal.scale).max(minDecimal.precision - minDecimal.scale), 0 | ||
| ) | ||
| case _ => BaseType.Int64 | ||
| } | ||
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| def numericWithMultiple(mult: NumberProperty.MultipleOf.NumberMultipleOf, | ||
| maximum: Option[NumberProperty.Maximum], | ||
| minimum: Option[NumberProperty.Minimum]): BaseType = | ||
| (maximum, minimum) match { | ||
| case (Some(max), Some(min)) => | ||
| val topPrecision = max match { | ||
| case NumberProperty.Maximum.IntegerMaximum(max) => | ||
| BigDecimal(max).precision + mult.value.scale | ||
| case NumberProperty.Maximum.NumberMaximum(max) => | ||
| max.precision - max.scale + mult.value.scale | ||
| } | ||
| val bottomPrecision = min match { | ||
| case NumberProperty.Minimum.IntegerMinimum(min) => | ||
| BigDecimal(min).precision + mult.value.scale | ||
| case NumberProperty.Minimum.NumberMinimum(min) => | ||
| min.precision - min.scale + mult.value.scale | ||
| } | ||
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| BaseType.Decimal(topPrecision.max(bottomPrecision), mult.value.scale) | ||
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| case _ => | ||
| BaseType.Double | ||
| } | ||
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| def numericEnum(enums: List[Json]): Option[NullableWrapper] = { | ||
| def go(scale: Int, max: BigDecimal, nullable: Boolean, enums: List[Json]): Option[NullableWrapper] = | ||
| enums match { | ||
| case Nil => | ||
| val t = if ((scale == 0) && (max <= Int.MaxValue)) BaseType.Int32 | ||
| else if ((scale == 0) && (max <= Long.MaxValue)) BaseType.Int64 | ||
| else BaseType.Decimal(max.precision - max.scale + scale, scale) | ||
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| Some(NullableWrapper.fromBool(t, nullable)) | ||
| case Json.Null :: tail => go(scale, max, true, tail) | ||
| case h :: tail => | ||
| h.asNumber.flatMap(_.toBigDecimal) match { | ||
| case Some(bigDecimal) => | ||
| val nextScale = scale.max(bigDecimal.scale) | ||
| val nextMax = (if (bigDecimal > 0) bigDecimal else -bigDecimal).max(max) | ||
| go(nextScale, nextMax, nullable, tail) | ||
| case None => None | ||
| } | ||
| } | ||
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| go(0, 0, false, enums) | ||
| } | ||
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| } |
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