com.gu.facia.client.S3Client.scala Maven / Gradle / Ivy
The newest version!
package com.gu.facia.client
import com.amazonaws.regions.{Region, Regions}
import com.amazonaws.services.s3.{AmazonS3, AmazonS3ClientBuilder}
import com.amazonaws.services.s3.model.AmazonS3Exception
import org.apache.commons.io.IOUtils
import scala.concurrent.{ExecutionContext, Future, blocking}
import scala.util.Try
/** For mocking in tests, but also to allow someone to define a properly asynchronous S3 client. (The one in the AWS
* SDK is unfortunately synchronous only.)
*/
trait S3Client {
def get(bucket: String, path: String): Future[FaciaResult]
}
case class AmazonSdkS3Client(client: AmazonS3)(implicit executionContext: ExecutionContext) extends S3Client {
def get(bucket: String, path: String): Future[FaciaResult] = Future {
blocking {
Try(IOUtils.toByteArray(client.getObject(bucket, path).getObjectContent))
.map(FaciaSuccess.apply)
.recover(recoverFromAmazonSdkExceptions)
.get
}
}
private def recoverFromAmazonSdkExceptions: PartialFunction[Throwable, FaciaResult] = {
case ex: AmazonS3Exception if ex.getErrorCode == "AccessDenied" => FaciaNotAuthorized(ex.getMessage)
case ex: AmazonS3Exception if ex.getErrorCode == "NoSuchKey" => FaciaNotFound(ex.getMessage)
case ex: AmazonS3Exception => FaciaUnknownError(ex.getMessage)
}
}
object AmazonSdkS3Client {
def default(implicit executionContext: ExecutionContext) = {
val client = AmazonS3ClientBuilder.standard().withRegion(Regions.EU_WEST_1).build()
AmazonSdkS3Client(client)
}
}