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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.spark.status.api.v1
import java.io.OutputStream
import java.util.zip.ZipOutputStream
import javax.ws.rs.{GET, Produces}
import javax.ws.rs.core.{MediaType, Response, StreamingOutput}
import scala.util.control.NonFatal
import org.apache.spark.{Logging, SparkConf}
import org.apache.spark.deploy.SparkHadoopUtil
@Produces(Array(MediaType.APPLICATION_OCTET_STREAM))
private[v1] class EventLogDownloadResource(
val uIRoot: UIRoot,
val appId: String,
val attemptId: Option[String]) extends Logging {
val conf = SparkHadoopUtil.get.newConfiguration(new SparkConf)
@GET
def getEventLogs(): Response = {
try {
val fileName = {
attemptId match {
case Some(id) => s"eventLogs-$appId-$id.zip"
case None => s"eventLogs-$appId.zip"
}
}
val stream = new StreamingOutput {
override def write(output: OutputStream): Unit = {
val zipStream = new ZipOutputStream(output)
try {
uIRoot.writeEventLogs(appId, attemptId, zipStream)
} finally {
zipStream.close()
}
}
}
Response.ok(stream)
.header("Content-Disposition", s"attachment; filename=$fileName")
.header("Content-Type", MediaType.APPLICATION_OCTET_STREAM)
.build()
} catch {
case NonFatal(e) =>
Response.serverError()
.entity(s"Event logs are not available for app: $appId.")
.status(Response.Status.SERVICE_UNAVAILABLE)
.build()
}
}
}
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