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Diffstat (limited to 'core/src/main/scala/org/apache/spark/rpc/netty/NettyStreamManager.scala')
-rw-r--r-- | core/src/main/scala/org/apache/spark/rpc/netty/NettyStreamManager.scala | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/core/src/main/scala/org/apache/spark/rpc/netty/NettyStreamManager.scala b/core/src/main/scala/org/apache/spark/rpc/netty/NettyStreamManager.scala new file mode 100644 index 0000000000..eb1d2604fb --- /dev/null +++ b/core/src/main/scala/org/apache/spark/rpc/netty/NettyStreamManager.scala @@ -0,0 +1,63 @@ +/* + * 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.rpc.netty + +import java.io.File +import java.util.concurrent.ConcurrentHashMap + +import org.apache.spark.network.buffer.{FileSegmentManagedBuffer, ManagedBuffer} +import org.apache.spark.network.server.StreamManager +import org.apache.spark.rpc.RpcEnvFileServer + +/** + * StreamManager implementation for serving files from a NettyRpcEnv. + */ +private[netty] class NettyStreamManager(rpcEnv: NettyRpcEnv) + extends StreamManager with RpcEnvFileServer { + + private val files = new ConcurrentHashMap[String, File]() + private val jars = new ConcurrentHashMap[String, File]() + + override def getChunk(streamId: Long, chunkIndex: Int): ManagedBuffer = { + throw new UnsupportedOperationException() + } + + override def openStream(streamId: String): ManagedBuffer = { + val Array(ftype, fname) = streamId.stripPrefix("/").split("/", 2) + val file = ftype match { + case "files" => files.get(fname) + case "jars" => jars.get(fname) + case _ => throw new IllegalArgumentException(s"Invalid file type: $ftype") + } + + require(file != null, s"File not found: $streamId") + new FileSegmentManagedBuffer(rpcEnv.transportConf, file, 0, file.length()) + } + + override def addFile(file: File): String = { + require(files.putIfAbsent(file.getName(), file) == null, + s"File ${file.getName()} already registered.") + s"${rpcEnv.address.toSparkURL}/files/${file.getName()}" + } + + override def addJar(file: File): String = { + require(jars.putIfAbsent(file.getName(), file) == null, + s"JAR ${file.getName()} already registered.") + s"${rpcEnv.address.toSparkURL}/jars/${file.getName()}" + } + +} |