scalikejdbc.Binders.scala Maven / Gradle / Ivy
package scalikejdbc
import java.io.InputStream
import java.sql.{ PreparedStatement, ResultSet }
import java.time.ZoneId
import JavaUtilDateConverterImplicits._
/**
* Provides both of TypeBinder and ParameterBinderFactory for the specified type A.
*/
trait Binders[A] extends TypeBinder[A] with ParameterBinderFactory[A] { self =>
def xmap[B](f: A => B, g: B => A): Binders[B] = new Binders[B] {
def apply(rs: ResultSet, columnIndex: Int): B = f(self(rs, columnIndex))
def apply(rs: ResultSet, columnLabel: String): B = f(self(rs, columnLabel))
def apply(value: B): ParameterBinderWithValue = self.contramap(g)(value)
}
}
/**
* Provides factories of Binders and built-in Binders.
*/
object Binders {
// --------------------------------------------------------------------------------------------
// Factory methods
// --------------------------------------------------------------------------------------------
def apply[A](index: (ResultSet, Int) => A)(
label: (ResultSet, String) => A
)(f: A => (PreparedStatement, Int) => Unit): Binders[A] = new Binders[A] {
def apply(rs: ResultSet, columnIndex: Int): A = index(rs, columnIndex)
def apply(rs: ResultSet, columnLabel: String): A = label(rs, columnLabel)
def apply(value: A): ParameterBinderWithValue = {
if (value == null) ParameterBinder.NullParameterBinder
else ParameterBinder(value, f(value))
}
}
def of[A](f: Any => A)(g: A => (PreparedStatement, Int) => Unit): Binders[A] =
new Binders[A] {
def apply(rs: ResultSet, columnIndex: Int): A = f(
rs.getObject(columnIndex)
)
def apply(rs: ResultSet, columnLabel: String): A = f(
rs.getObject(columnLabel)
)
def apply(value: A): ParameterBinderWithValue = {
if (value == null) ParameterBinder.NullParameterBinder
else ParameterBinder(value, g(value))
}
}
private[scalikejdbc] def option[A](t: Binders[A]): Binders[Option[A]] =
option(t, t)
def option[A](implicit
b: TypeBinder[A],
p: ParameterBinderFactory[A]
): Binders[Option[A]] = new Binders[Option[A]] {
def apply(rs: ResultSet, columnIndex: Int): Option[A] =
TypeBinder.option(b).apply(rs, columnIndex)
def apply(rs: ResultSet, columnLabel: String): Option[A] =
TypeBinder.option(b).apply(rs, columnLabel)
def apply(value: Option[A]): ParameterBinderWithValue =
ParameterBinderFactory.optionalParameterBinderFactory(p).apply(value)
}
// ----------------------------------------------------
// private
private[this] def throwExceptionIfNull[A <: AnyVal, B](f: B => A)(a: B): A = {
if (a == null) throw new UnexpectedNullValueException else f(a)
}
private[this] def wrapCastOption[A <: AnyVal, B](o: B): Option[A] =
Option(o).asInstanceOf[Option[A]]
private[this] def unwrapCastOption[A <: AnyVal, B](o: Option[A]): B =
o match {
case Some(v) => v.asInstanceOf[B]
case None => null.asInstanceOf[B]
}
private[scalikejdbc] def nullThrough[A, B](f: A => B)(a: A): B =
if (a == null) null.asInstanceOf[B] else f(a)
private[scalikejdbc] def convertJavaTimeZonedDateTime(
z: ZoneId
): java.sql.Timestamp => java.time.ZonedDateTime =
nullThrough(x => java.time.ZonedDateTime.ofInstant(x.toInstant, z))
private[scalikejdbc] def convertJavaTimeOffsetDateTime(
z: ZoneId
): java.sql.Timestamp => java.time.OffsetDateTime =
nullThrough(x => java.time.OffsetDateTime.ofInstant(x.toInstant, z))
private[scalikejdbc] def convertJavaTimeLocalDateTime(
z: ZoneId
): java.sql.Timestamp => java.time.LocalDateTime =
nullThrough(x => java.time.LocalDateTime.ofInstant(x.toInstant, z))
// --------------------------------------------------------------------------------------------
// Built-in Binders
// --------------------------------------------------------------------------------------------
val javaInteger: Binders[java.lang.Integer] = Binders.of[java.lang.Integer] {
case null => null
case v: Float => v.toInt.asInstanceOf[java.lang.Integer]
case v: Double => v.toInt.asInstanceOf[java.lang.Integer]
case n: Number => n.intValue
case v => java.lang.Integer.valueOf(v.toString)
}(v => (ps, idx) => ps.setInt(idx, v.intValue))
val int: Binders[Int] =
javaInteger.xmap(throwExceptionIfNull(_.intValue), Integer.valueOf)
val optionInt: Binders[Option[Int]] = javaInteger.xmap(
wrapCastOption[Int, Integer],
unwrapCastOption[Int, Integer]
)
val javaBoolean: Binders[java.lang.Boolean] = Binders.of[java.lang.Boolean] {
case null => null
case b: java.lang.Boolean => b
case b: Boolean => b.asInstanceOf[java.lang.Boolean]
case s: String if s == "false" || s == "true" => s.toBoolean
case s: String =>
{
try s.toInt != 0
catch { case e: NumberFormatException => s.nonEmpty }
}.asInstanceOf[java.lang.Boolean]
case n: Number => (n.intValue() != 0).asInstanceOf[java.lang.Boolean]
case v => (v != 0).asInstanceOf[java.lang.Boolean]
}(v => (ps, idx) => ps.setBoolean(idx, v))
val boolean: Binders[Boolean] = javaBoolean.xmap(
throwExceptionIfNull(_.booleanValue),
java.lang.Boolean.valueOf
)
val optionBoolean: Binders[Option[Boolean]] = javaBoolean.xmap(
wrapCastOption[Boolean, java.lang.Boolean],
unwrapCastOption[Boolean, java.lang.Boolean]
)
val javaShort: Binders[java.lang.Short] = Binders.of[java.lang.Short] {
case null => null
case v: Float => v.toShort.asInstanceOf[java.lang.Short]
case v: Double => v.toShort.asInstanceOf[java.lang.Short]
case n: Number => n.shortValue
case v => java.lang.Short.valueOf(v.toString)
}(v => (ps, idx) => ps.setShort(idx, v))
val short: Binders[Short] =
javaShort.xmap(throwExceptionIfNull(_.shortValue), java.lang.Short.valueOf)
val optionShort: Binders[Option[Short]] = javaShort.xmap(
wrapCastOption[Short, java.lang.Short],
unwrapCastOption[Short, java.lang.Short]
)
val javaLong: Binders[java.lang.Long] = Binders.of[java.lang.Long] {
case null => null
case v: Float => v.toLong.asInstanceOf[java.lang.Long]
case v: Double => v.toLong.asInstanceOf[java.lang.Long]
case n: Number => n.longValue
case v => java.lang.Long.valueOf(v.toString)
}(v => (ps, idx) => ps.setLong(idx, v))
val long: Binders[Long] =
javaLong.xmap(throwExceptionIfNull(_.longValue), java.lang.Long.valueOf)
val optionLong: Binders[Option[Long]] = javaLong.xmap(
wrapCastOption[Long, java.lang.Long],
unwrapCastOption[Long, java.lang.Long]
)
val javaFloat: Binders[java.lang.Float] = Binders.of[java.lang.Float] {
case null => null
case v => java.lang.Float.valueOf(v.toString)
}(v => (ps, idx) => ps.setFloat(idx, v))
val float: Binders[Float] =
javaFloat.xmap(throwExceptionIfNull(_.floatValue), java.lang.Float.valueOf)
val optionFloat: Binders[Option[Float]] = javaFloat.xmap(
wrapCastOption[Float, java.lang.Float],
unwrapCastOption[Float, java.lang.Float]
)
val javaDouble: Binders[java.lang.Double] = Binders.of[java.lang.Double] {
case null => null
case v => java.lang.Double.valueOf(v.toString)
}(v => (ps, idx) => ps.setDouble(idx, v))
val double: Binders[Double] = javaDouble.xmap(
throwExceptionIfNull(_.doubleValue),
java.lang.Double.valueOf
)
val optionDouble: Binders[Option[Double]] = javaDouble.xmap(
wrapCastOption[Double, java.lang.Double],
unwrapCastOption[Double, java.lang.Double]
)
val javaByte: Binders[java.lang.Byte] = Binders.of[java.lang.Byte] {
case null => null
case v => java.lang.Byte.valueOf(v.toString)
}(v => (ps, idx) => ps.setByte(idx, v))
val byte: Binders[Byte] =
javaByte.xmap(throwExceptionIfNull(_.byteValue), java.lang.Byte.valueOf)
val optionByte: Binders[Option[Byte]] = javaByte.xmap(
wrapCastOption[Byte, java.lang.Byte],
unwrapCastOption[Byte, java.lang.Byte]
)
val string: Binders[String] = Binders(_ getString _)(_ getString _)(v =>
(ps, idx) => ps.setString(idx, v)
)
val sqlArray: Binders[java.sql.Array] =
Binders(_ getArray _)(_ getArray _)(v => (ps, idx) => ps.setArray(idx, v))
val javaBigDecimal: Binders[java.math.BigDecimal] =
Binders(_ getBigDecimal _)(_ getBigDecimal _)(v =>
(ps, idx) => ps.setBigDecimal(idx, v)
)
val bigDecimal: Binders[BigDecimal] =
javaBigDecimal.xmap(nullThrough(BigDecimal.apply), _.bigDecimal)
val javaBigInteger: Binders[java.math.BigInteger] = javaBigDecimal.xmap(
nullThrough(_.toBigInteger),
new java.math.BigDecimal(_)
)
val bigInt: Binders[BigInt] =
javaBigInteger.xmap(nullThrough(BigInt.apply), _.bigInteger)
val sqlDate: Binders[java.sql.Date] =
Binders(_ getDate _)(_ getDate _)(v => (ps, idx) => ps.setDate(idx, v))
val sqlXml: Binders[java.sql.SQLXML] =
Binders(_ getSQLXML _)(_ getSQLXML _)(v =>
(ps, idx) => ps.setSQLXML(idx, v)
)
val sqlTime: Binders[java.sql.Time] =
Binders(_ getTime _)(_ getTime _)(v => (ps, idx) => ps.setTime(idx, v))
val sqlTimestamp: Binders[java.sql.Timestamp] =
Binders(_ getTimestamp _)(_ getTimestamp _)(v =>
(ps, idx) => ps.setTimestamp(idx, v)
)
val url: Binders[java.net.URL] =
Binders(_ getURL _)(_ getURL _)(v => (ps, idx) => ps.setURL(idx, v))
val utilDate: Binders[java.util.Date] =
sqlTimestamp.xmap(identity, _.toSqlTimestamp)
val javaTimeInstant: Binders[java.time.Instant] =
sqlTimestamp.xmap(nullThrough(_.toInstant), java.sql.Timestamp.from)
val javaTimeZonedDateTime: Binders[java.time.ZonedDateTime] =
sqlTimestamp.xmap(
convertJavaTimeZonedDateTime(java.time.ZoneId.systemDefault()),
v => java.sql.Timestamp.from(v.toInstant)
)
val javaTimeOffsetDateTime: Binders[java.time.OffsetDateTime] =
sqlTimestamp.xmap(
convertJavaTimeOffsetDateTime(java.time.ZoneId.systemDefault()),
v => java.sql.Timestamp.from(v.toInstant)
)
val javaTimeLocalDateTime: Binders[java.time.LocalDateTime] =
sqlTimestamp.xmap(
convertJavaTimeLocalDateTime(java.time.ZoneId.systemDefault()),
v =>
java.sql.Timestamp.from(
v.atZone(java.time.ZoneId.systemDefault()).toInstant
)
)
val javaTimeLocalDate: Binders[java.time.LocalDate] =
sqlDate.xmap(nullThrough(_.toLocalDate), java.sql.Date.valueOf)
val javaTimeLocalTime: Binders[java.time.LocalTime] = sqlTime.xmap(
nullThrough(v => {
// java.sql.Time#toLocalTime drops its millisecond value
val millis: Long = v.getTime
new java.util.Date(millis).toLocalTime
}),
java.sql.Time.valueOf
)
val binaryStream: Binders[InputStream] =
Binders(_ getBinaryStream _)(_ getBinaryStream _)(v =>
(ps, idx) => ps.setBinaryStream(idx, v)
)
val blob: Binders[java.sql.Blob] =
Binders(_ getBlob _)(_ getBlob _)(v => (ps, idx) => ps.setBlob(idx, v))
val clob: Binders[java.sql.Clob] =
Binders(_ getClob _)(_ getClob _)(v => (ps, idx) => ps.setClob(idx, v))
val nClob: Binders[java.sql.NClob] =
Binders(_ getNClob _)(_ getNClob _)(v => (ps, idx) => ps.setNClob(idx, v))
val ref: Binders[java.sql.Ref] =
Binders(_ getRef _)(_ getRef _)(v => (ps, idx) => ps.setRef(idx, v))
val rowId: Binders[java.sql.RowId] =
Binders(_ getRowId _)(_ getRowId _)(v => (ps, idx) => ps.setRowId(idx, v))
val bytes: Binders[Array[Byte]] =
Binders(_ getBytes _)(_ getBytes _)(v => (ps, idx) => ps.setBytes(idx, v))
val characterStream: Binders[java.io.Reader] =
Binders(_ getCharacterStream _)(_ getCharacterStream _)(v =>
(ps, idx) => ps.setCharacterStream(idx, v)
)
val javaUtilCalendar: Binders[java.util.Calendar] = utilDate.xmap(
nullThrough { v =>
val c = java.util.Calendar.getInstance
c.setTime(v)
c
},
_.getTime
)
val asciiStream: Binders[java.io.InputStream] =
Binders(_ getAsciiStream _)(_ getAsciiStream _)(v =>
(ps, idx) => ps.setAsciiStream(idx, v)
)
val nCharacterStream: Binders[java.io.Reader] =
Binders(_ getNCharacterStream _)(_ getNCharacterStream _)(v =>
(ps, idx) => ps.setNCharacterStream(idx, v)
)
val nString: Binders[String] = Binders(_ getNString _)(_ getNString _)(v =>
(ps, idx) => ps.setNString(idx, v)
)
}
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