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DynamoDbStreamEvent.scala
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DynamoDbStreamEvent.scala
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/*
* Copyright 2021 Typelevel
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package feral.lambda
package events
import io.circe.Decoder
import io.circe.Json
import io.circe.scodec.decodeByteVector
import scodec.bits.ByteVector
sealed abstract class AttributeValue {
def b: Option[ByteVector]
def bs: Option[List[ByteVector]]
def bool: Option[Boolean]
def l: Option[List[AttributeValue]]
def m: Option[Map[String, AttributeValue]]
def n: Option[String]
def ns: Option[List[String]]
def nul: Boolean
def s: Option[String]
def ss: Option[List[String]]
}
object AttributeValue {
def apply(
b: Option[ByteVector],
bs: Option[List[ByteVector]],
bool: Option[Boolean],
l: Option[List[AttributeValue]],
m: Option[Map[String, AttributeValue]],
n: Option[String],
ns: Option[List[String]],
nul: Boolean,
s: Option[String],
ss: Option[List[String]]
): AttributeValue =
new Impl(b, bs, bool, l, m, n, ns, nul, s, ss)
private[events] implicit val decoder: Decoder[AttributeValue] = for {
b <- Decoder[Option[ByteVector]].at("B")
bs <- Decoder[Option[List[ByteVector]]].at("BS")
bool <- Decoder[Option[Boolean]].at("BOOL")
l <- Decoder[Option[List[AttributeValue]]].at("L")
m <- Decoder[Option[Map[String, AttributeValue]]].at("M")
n <- Decoder[Option[String]].at("N")
ns <- Decoder[Option[List[String]]].at("NS")
nul <- Decoder[Option[true]].at("NULL")
s <- Decoder[Option[String]].at("S")
ss <- Decoder[Option[List[String]]].at("SS")
} yield AttributeValue(
b = b,
bs = bs,
bool = bool,
l = l,
m = m,
n = n,
ns = ns,
nul = nul.getOrElse(false),
s = s,
ss = ss
)
private final case class Impl(
b: Option[ByteVector],
bs: Option[List[ByteVector]],
bool: Option[Boolean],
l: Option[List[AttributeValue]],
m: Option[Map[String, AttributeValue]],
n: Option[String],
ns: Option[List[String]],
nul: Boolean,
s: Option[String],
ss: Option[List[String]]
) extends AttributeValue {
override def productPrefix = "AttributeValue"
}
}
sealed abstract class StreamRecord {
def approximateCreationDateTime: Option[Double]
def keys: Option[Map[String, AttributeValue]]
def newImage: Option[Map[String, AttributeValue]]
def oldImage: Option[Map[String, AttributeValue]]
def sequenceNumber: Option[String]
def sizeBytes: Option[Double]
def streamViewType: Option[String]
}
object StreamRecord {
def apply(
approximateCreationDateTime: Option[Double],
keys: Option[Map[String, AttributeValue]],
newImage: Option[Map[String, AttributeValue]],
oldImage: Option[Map[String, AttributeValue]],
sequenceNumber: Option[String],
sizeBytes: Option[Double],
streamViewType: Option[String]
): StreamRecord =
new Impl(
approximateCreationDateTime,
keys,
newImage,
oldImage,
sequenceNumber,
sizeBytes,
streamViewType
)
private[events] implicit val decoder: Decoder[StreamRecord] = Decoder.forProduct7(
"ApproximateCreationDateTime",
"Keys",
"NewImage",
"OldImage",
"SequenceNumber",
"SizeBytes",
"StreamViewType"
)(StreamRecord.apply)
private final case class Impl(
approximateCreationDateTime: Option[Double],
keys: Option[Map[String, AttributeValue]],
newImage: Option[Map[String, AttributeValue]],
oldImage: Option[Map[String, AttributeValue]],
sequenceNumber: Option[String],
sizeBytes: Option[Double],
streamViewType: Option[String]
) extends StreamRecord {
override def productPrefix = "StreamRecord"
}
}
sealed abstract class DynamoDbRecord {
def awsRegion: Option[String]
def dynamodb: Option[StreamRecord]
def eventId: Option[String]
def eventName: Option[String]
def eventSource: Option[String]
def eventSourceArn: Option[String]
def eventVersion: Option[String]
def userIdentity: Option[Json]
@deprecated("Renamed to eventId", "0.3.0")
final def eventID: Option[String] = eventId
}
object DynamoDbRecord {
def apply(
awsRegion: Option[String],
dynamodb: Option[StreamRecord],
eventId: Option[String],
eventName: Option[String],
eventSource: Option[String],
eventSourceArn: Option[String],
eventVersion: Option[String],
userIdentity: Option[Json]
): DynamoDbRecord =
new Impl(
awsRegion,
dynamodb,
eventId,
eventName,
eventSource,
eventSourceArn,
eventVersion,
userIdentity
)
private[events] implicit val decoder: Decoder[DynamoDbRecord] = Decoder.forProduct8(
"awsRegion",
"dynamodb",
"eventID",
"eventName",
"eventSource",
"eventSourceARN",
"eventVersion",
"userIdentity"
)(DynamoDbRecord.apply)
private final case class Impl(
awsRegion: Option[String],
dynamodb: Option[StreamRecord],
eventId: Option[String],
eventName: Option[String],
eventSource: Option[String],
eventSourceArn: Option[String],
eventVersion: Option[String],
userIdentity: Option[Json]
) extends DynamoDbRecord {
override def productPrefix = "DynamoDbRecord"
}
}
sealed abstract class DynamoDbStreamEvent {
def records: List[DynamoDbRecord]
}
object DynamoDbStreamEvent {
def apply(records: List[DynamoDbRecord]): DynamoDbStreamEvent =
new Impl(records)
implicit val decoder: Decoder[DynamoDbStreamEvent] =
Decoder.forProduct1("Records")(DynamoDbStreamEvent.apply)
implicit def kernelSource: KernelSource[DynamoDbStreamEvent] = KernelSource.emptyKernelSource
private final case class Impl(
records: List[DynamoDbRecord]
) extends DynamoDbStreamEvent {
override def productPrefix = "DynamoDbStreamEvent"
}
}