io.gatling.http.response.ResponseBody.scala Maven / Gradle / Ivy
/*
* Copyright 2011-2021 GatlingCorp (https://gatling.io)
*
* 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 io.gatling.http.response
import java.io.{ InputStream, SequenceInputStream }
import java.nio.charset.Charset
import java.nio.charset.StandardCharsets.UTF_8
import scala.jdk.CollectionConverters._
import scala.util.control.NonFatal
import io.gatling.commons.util.ByteBufs._
import io.gatling.commons.util.FastByteArrayInputStream
import io.gatling.netty.util.ByteBufUtils._
import com.typesafe.scalalogging.LazyLogging
import io.netty.buffer.{ ByteBuf, ByteBufInputStream }
object ResponseBody {
def apply(bodyLength: Int, chunks: List[ByteBuf], charset: Charset): ResponseBody =
chunks match {
case Nil => NoResponseBody(bodyLength)
case chunk :: Nil => new ByteBufResponseBody(bodyLength, chunk, charset)
case _ => new ByteBufsResponseBody(bodyLength, chunks, charset)
}
}
sealed trait ResponseBody {
def length: Int
def charset: Charset
def string: String
def chars: Array[Char]
def bytes: Array[Byte]
def stream: InputStream
}
private[gatling] final class ByteBufResponseBody(override val length: Int, chunk: ByteBuf, override val charset: Charset)
extends ResponseBody
with LazyLogging {
override lazy val string: String =
try {
byteBuf2String(charset, chunk.duplicate)
} catch {
case NonFatal(e) =>
logger.error(s"Response body is not valid ${charset.name} bytes", e)
""
}
override lazy val chars: Array[Char] =
byteBuf2Chars(charset, chunk.duplicate)
override lazy val bytes: Array[Byte] =
byteBuf2Bytes(chunk.duplicate)
override def stream: InputStream =
new ByteBufInputStream(chunk.duplicate)
}
private[gatling] final class ByteBufsResponseBody(override val length: Int, chunks: Seq[ByteBuf], override val charset: Charset)
extends ResponseBody
with LazyLogging {
override lazy val string: String =
try {
byteBuf2String(charset, chunks.map(_.duplicate): _*)
} catch {
case NonFatal(e) =>
logger.error(s"Response body is not valid ${charset.name} bytes", e)
""
}
override lazy val chars: Array[Char] =
byteBuf2Chars(charset, chunks.map(_.duplicate): _*)
override lazy val bytes: Array[Byte] =
byteBufsToByteArray(chunks.map(_.duplicate))
override def stream: InputStream =
new SequenceInputStream(chunks.map(chunk => new ByteBufInputStream(chunk.duplicate)).iterator.asJavaEnumeration)
}
object NoResponseBody {
val Empty: NoResponseBody = new NoResponseBody(0)
def apply(length: Int): NoResponseBody =
if (length == 0) Empty else new NoResponseBody(length)
}
final class NoResponseBody(val length: Int) extends ResponseBody {
override val charset: Charset = UTF_8
override val string: String = ""
override val chars: Array[Char] = Array.emptyCharArray
override val bytes: Array[Byte] = Array.emptyByteArray
override def stream: FastByteArrayInputStream = new FastByteArrayInputStream(bytes)
}
// for ResponseTransformer
final class StringResponseBody(val string: String, override val charset: Charset) extends ResponseBody {
override def length: Int = bytes.length
override lazy val chars: Array[Char] = string.toCharArray
override lazy val bytes: Array[Byte] = string.getBytes(charset)
override def stream: InputStream = new FastByteArrayInputStream(bytes)
}
// for ResponseTransformer and PollerActor
final class ByteArrayResponseBody(val bytes: Array[Byte], override val charset: Charset) extends ResponseBody {
override def length: Int = bytes.length
override lazy val string: String = new String(bytes, charset)
override lazy val chars: Array[Char] = string.toCharArray
override def stream: InputStream = new FastByteArrayInputStream(bytes)
}