1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* 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.streaming.flume
import scala.collection.JavaConverters._
import scala.collection.mutable.{ArrayBuffer, SynchronizedBuffer}
import scala.concurrent.duration._
import scala.language.postfixOps
import org.jboss.netty.channel.ChannelPipeline
import org.jboss.netty.channel.socket.SocketChannel
import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory
import org.jboss.netty.handler.codec.compression._
import org.scalatest.{BeforeAndAfter, Matchers}
import org.scalatest.concurrent.Eventually._
import org.apache.spark.{Logging, SparkConf, SparkFunSuite}
import org.apache.spark.network.util.JavaUtils
import org.apache.spark.storage.StorageLevel
import org.apache.spark.streaming.{Milliseconds, StreamingContext, TestOutputStream}
class FlumeStreamSuite extends SparkFunSuite with BeforeAndAfter with Matchers with Logging {
val conf = new SparkConf().setMaster("local[4]").setAppName("FlumeStreamSuite")
var ssc: StreamingContext = null
test("flume input stream") {
testFlumeStream(testCompression = false)
}
test("flume input compressed stream") {
testFlumeStream(testCompression = true)
}
/** Run test on flume stream */
private def testFlumeStream(testCompression: Boolean): Unit = {
val input = (1 to 100).map { _.toString }
val utils = new FlumeTestUtils
try {
val outputBuffer = startContext(utils.getTestPort(), testCompression)
eventually(timeout(10 seconds), interval(100 milliseconds)) {
utils.writeInput(input.asJava, testCompression)
}
eventually(timeout(10 seconds), interval(100 milliseconds)) {
val outputEvents = outputBuffer.flatten.map { _.event }
outputEvents.foreach {
event =>
event.getHeaders.get("test") should be("header")
}
val output = outputEvents.map(event => JavaUtils.bytesToString(event.getBody))
output should be (input)
}
} finally {
if (ssc != null) {
ssc.stop()
}
utils.close()
}
}
/** Setup and start the streaming context */
private def startContext(
testPort: Int, testCompression: Boolean): (ArrayBuffer[Seq[SparkFlumeEvent]]) = {
ssc = new StreamingContext(conf, Milliseconds(200))
val flumeStream = FlumeUtils.createStream(
ssc, "localhost", testPort, StorageLevel.MEMORY_AND_DISK, testCompression)
val outputBuffer = new ArrayBuffer[Seq[SparkFlumeEvent]]
with SynchronizedBuffer[Seq[SparkFlumeEvent]]
val outputStream = new TestOutputStream(flumeStream, outputBuffer)
outputStream.register()
ssc.start()
outputBuffer
}
/** Class to create socket channel with compression */
private class CompressionChannelFactory(compressionLevel: Int)
extends NioClientSocketChannelFactory {
override def newChannel(pipeline: ChannelPipeline): SocketChannel = {
val encoder = new ZlibEncoder(compressionLevel)
pipeline.addFirst("deflater", encoder)
pipeline.addFirst("inflater", new ZlibDecoder())
super.newChannel(pipeline)
}
}
}
|
