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ReadFluency.scala
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ReadFluency.scala
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package gallia.io
package in
import gallia._
// ===========================================================================
// TODO: t201222094823 - improve boilerplate throughout, macro maybe (we know the copy() methods are available)?
// ---------------------------------------------------------------------------
class RawContentFluency(val conf: RawContentConf)
extends FluencyBase[RawContentFluency, RawContentConf](new RawContentFluency(_))
with HasCharsetFluency [RawContentFluency]
with HasCompressionFluency[RawContentFluency]
with EndReadUFluency {
val self = this
// ---------------------------------------------------------------------------
// boilerplate:
override def charset (value: SupportedCharset) = conf.copy(urlLike = conf.urlLike.update(value))
override def compression(value: SupportedCompression) = conf.copy(urlLike = conf.urlLike.update(value))
}
// ---------------------------------------------------------------------------
class RawLinesFluency(val conf: RawLinesConf)
extends FluencyBase[RawLinesFluency, RawLinesConf](new RawLinesFluency(_))
with HasCharsetFluency [RawLinesFluency]
with HasCompressionFluency[RawLinesFluency]
with CanSetMemoryModeFluency[RawLinesFluency]
with EndReadZFluency {
val self = this
def forceInMemory: RawLinesFluency = this // FIXME
// ---------------------------------------------------------------------------
// boilerplate:
override def charset (value: SupportedCharset) = conf.copy(urlLike = conf.urlLike.update(value))
override def compression(value: SupportedCompression) = conf.copy(urlLike = conf.urlLike.update(value))
// ---------------------------------------------------------------------------
override def iteratorMode = conf.copy(inMemoryMode = false)
}
// ===========================================================================
class JsonObjectStringFluency(val conf: JsonObjectStringConf)
extends FluencyBase[JsonObjectStringFluency, JsonObjectStringConf](new JsonObjectStringFluency(_))
with CanSetSchemaFluency[JsonObjectStringFluency]
with EndReadUFluency {
val self = this
// ---------------------------------------------------------------------------
// boilerplate:
override def explicitSchema(c: Cls) = conf.copy(schemaProvider = ExplicitSchema(c))
override def inferSchema = conf.copy(schemaProvider = InferSchema)
}
// ---------------------------------------------------------------------------
class JsonArrayStringFluency(val conf: JsonArrayStringConf)
extends FluencyBase[JsonArrayStringFluency, JsonArrayStringConf](new JsonArrayStringFluency(_))
with CanSetSchemaFluency[JsonArrayStringFluency]
with EndReadZFluency {
val self = this
// ---------------------------------------------------------------------------
// boilerplate:
override def explicitSchema(c: Cls) = conf.copy(schemaProvider = ExplicitSchema(c))
override def inferSchema = conf.copy(schemaProvider = InferSchema)
}
// ===========================================================================
class JdbcFluency(val conf: JdbcConf)
extends FluencyBase[JdbcFluency, JdbcConf](new JdbcFluency(_))
with EndReadZFluency {
val self = this
// ---------------------------------------------------------------------------
def table(table: String): JdbcFluency = conf.copy(queryingOpt = Some(ReadQuerying.All(table)))
def query(query: String): JdbcFluency = conf.copy(queryingOpt = Some(ReadQuerying.Query(query)))
// ===========================================================================
// boilerplate:
private[io] def querying(value: Option[ReadQuerying]): JdbcFluency = conf.copy(queryingOpt = value)
}
// ===========================================================================
class MongodbFluency(val conf: MongodbConf)
extends FluencyBase[MongodbFluency, MongodbConf](new MongodbFluency(_))
with EndReadZFluency {
val self = this
// ---------------------------------------------------------------------------
def collection(collection: String): MongodbFluency = conf.copy(queryingOpt = Some(ReadQuerying.All(collection)))
def query (query: String) : MongodbFluency = conf.copy(queryingOpt = Some(ReadQuerying.Query(query)))
// ---------------------------------------------------------------------------
// boilerplate:
private[io] def querying(value: Option[ReadQuerying]): MongodbFluency = conf.copy(queryingOpt = value)
}
// ===========================================================================
class JsonObjectFileFluency(val conf: JsonObjectFileConf)
extends FluencyBase[JsonObjectFileFluency, JsonObjectFileConf](new JsonObjectFileFluency(_))
with HasCharsetFluency [JsonObjectFileFluency]
with HasCompressionFluency[JsonObjectFileFluency]
with CanSetSchemaFluency[JsonObjectFileFluency]
with CanProjectFluency[JsonObjectFileFluency]
with EndReadUFluency {
val self = this
// ===========================================================================
// boilerplate:
override def charset (value: SupportedCharset) = conf.copy(urlLike = conf.urlLike.update(value))
override def compression(value: SupportedCompression) = conf.copy(urlLike = conf.urlLike.update(value))
// ---------------------------------------------------------------------------
override def explicitSchema(c: Cls) = conf.copy(schemaProvider = ExplicitSchema(c))
override def inferSchema = conf.copy(schemaProvider = InferSchema)
// ---------------------------------------------------------------------------
override private[io] def project(projectionOpt: Option[ReadProjection]) = conf.copy(projectionOpt = projectionOpt)
}
// ===========================================================================
class JsonArrayFileFluency(val conf: JsonArrayFileConf)
extends FluencyBase[JsonArrayFileFluency, JsonArrayFileConf](new JsonArrayFileFluency(_))
with HasCharsetFluency [JsonArrayFileFluency]
with HasCompressionFluency[JsonArrayFileFluency]
with CanSetMemoryModeFluency[JsonArrayFileFluency]
with CanSetSchemaFluency[JsonArrayFileFluency]
with CanProjectFluency[JsonArrayFileFluency]
with EndReadZFluency {
val self = this
// ===========================================================================
// boilerplate:
override def charset (value: SupportedCharset) = conf.copy(urlLike = conf.urlLike.update(value))
override def compression(value: SupportedCompression) = conf.copy(urlLike = conf.urlLike.update(value))
// ---------------------------------------------------------------------------
override def iteratorMode = conf.copy(inMemoryMode = false)
// ---------------------------------------------------------------------------
override def explicitSchema(c: Cls) = conf.copy(schemaProvider = ExplicitSchema(c))
override def inferSchema = conf.copy(schemaProvider = InferSchema)
// ---------------------------------------------------------------------------
override private[io] def project(projectionOpt: Option[ReadProjection]) = conf.copy(projectionOpt = projectionOpt)
}
// ===========================================================================
class JsonLinesFileFluency(val conf: JsonLinesFileConf)
extends FluencyBase[JsonLinesFileFluency, JsonLinesFileConf](new JsonLinesFileFluency(_))
with HasCharsetFluency [JsonLinesFileFluency]
with HasCompressionFluency[JsonLinesFileFluency]
with CanSetMemoryModeFluency[JsonLinesFileFluency]
with CanSetSchemaFluency[JsonLinesFileFluency]
with CanProjectFluency[JsonLinesFileFluency]
with EndReadZFluency {
val self = this
// ---------------------------------------------------------------------------
def nullsAs(value: Any): JsonLinesFileFluency = ??? // TODO: t201216174813 - at least allow replacing JSON nulls
//TODO: t201216174927 - provide gson hook?
// ===========================================================================
// boilerplate:
override def charset (value: SupportedCharset) = conf.copy(urlLike = conf.urlLike.update(value))
override def compression(value: SupportedCompression) = conf.copy(urlLike = conf.urlLike.update(value))
// ---------------------------------------------------------------------------
override def iteratorMode = conf.copy(inMemoryMode = false)
// ---------------------------------------------------------------------------
override def explicitSchema(c: Cls) = conf.copy(schemaProvider = ExplicitSchema(c))
override def inferSchema = conf.copy(schemaProvider = InferSchema)
// ---------------------------------------------------------------------------
override private[io] def project(projectionOpt: Option[ReadProjection]) = conf.copy(projectionOpt = projectionOpt)
}
// ===========================================================================
class TableFluency(val conf: TableConf)
extends FluencyBase[TableFluency, TableConf](new TableFluency(_))
with HasCharsetFluency [TableFluency]
with HasCompressionFluency[TableFluency]
with CanSetMemoryModeFluency[TableFluency]
with CanSetSchemaFluency[TableFluency]
with CanProjectFluency[TableFluency]
with EndReadZFluency { import TableSchemaProvider._
val self = this
// ===========================================================================
def noInferring: TableFluency = conf.copy(schemaProvider = NoInferring)
def stringsOnly: TableFluency = conf.copy(schemaProvider = StringsOnly)
// ---------------------------------------------------------------------------
def useIndexKeys: TableFluency = conf.copy(indexKeysMode = true)
// ---------------------------------------------------------------------------
def withHeader: TableFluency = conf.updateFormatConf(_.copy(explicitHasHeaderOpt = Some(true)))
def noHeader : TableFluency = conf.updateFormatConf(_.copy(explicitHasHeaderOpt = Some(false)))
// ---------------------------------------------------------------------------
def missingHeader(value1: KeyW, more: KeyW*): TableFluency = noHeader.conf.copy(schemaProvider = ExplicitKeys(KeyWz._to(value1, more).keyz))
def missingHeader(values: KeyWz) : TableFluency = noHeader.conf.copy(schemaProvider = ExplicitKeys(values.keyz))
// ---------------------------------------------------------------------------
def nullValue (value: String): TableFluency = conf.updateCellConf(_.copy(nullValues = Seq(value)))
def arraySeparator (value: String): TableFluency = conf.updateCellConf(_.copy(arraySeparators = Seq(value)))
def nullValues (value1: String, more: String*): TableFluency = conf.updateCellConf(_.copy(nullValues = value1 +: more))
def arraySeparators(value1: String, more: String*): TableFluency = conf.updateCellConf(_.copy(arraySeparators = value1 +: more))
def keepEmptyStrings: TableFluency = conf.updateCellConf(_.copy(nullValues = Seq()))
def noArraySeparator: TableFluency = conf.updateCellConf(_.copy(arraySeparators = Seq()))
def cellConf(value: CellConf) : TableFluency = conf.copy(cellConf = value)
// ===========================================================================
// boilerplate:
override def explicitSchema(c: Cls) = conf.copy(schemaProvider = TableSchemaProvider.ExplicitSchema(c))
override def inferSchema = conf.copy(schemaProvider = TableSchemaProvider.InferSchema)
// ---------------------------------------------------------------------------
override def iteratorMode = conf.copy(inMemoryMode = false)
// ---------------------------------------------------------------------------
override def charset (value: SupportedCharset) = conf.copy(urlLike = conf.urlLike.update(value))
override def compression(value: SupportedCompression) = conf.copy(urlLike = conf.urlLike.update(value))
// ---------------------------------------------------------------------------
override private[io] def project(projectionOpt: Option[ReadProjection]) = conf.copy(projectionOpt = projectionOpt)
}
// ===========================================================================