Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/1434#discussion_r15724783
--- Diff:
extras/kinesis-asl/src/main/scala/org/apache/spark/streaming/kinesis/KinesisUtils.scala
---
@@ -0,0 +1,99 @@
+/*
+ * 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.kinesis
+
+import org.apache.spark.Logging
+import org.apache.spark.annotation.Experimental
+import org.apache.spark.storage.StorageLevel
+import org.apache.spark.streaming.Duration
+import org.apache.spark.streaming.StreamingContext
+import org.apache.spark.streaming.api.java.JavaReceiverInputDStream
+import org.apache.spark.streaming.api.java.JavaStreamingContext
+import org.apache.spark.streaming.dstream.ReceiverInputDStream
+
+import
com.amazonaws.services.kinesis.clientlibrary.lib.worker.InitialPositionInStream
+
+
+/**
+ * Helper class to create Amazon Kinesis Input Stream
+ * :: Experimental ::
+ */
+@Experimental
+object KinesisUtils extends Logging {
+ /**
+ * Create an InputDStream that pulls messages from a Kinesis stream.
+ *
+ * @param ssc StreamingContext object
+ * @param streamName Kinesis stream name
+ * @param endpointUrl Url of Kinesis service (e.g.,
https://kinesis.us-east-1.amazonaws.com)
+ * @param checkpointInterval Checkpoint interval for Kinesis
checkpointing.
+ * See the Kinesis Spark Streaming
documentation for more
+ * details on the different types of
checkpoints.
+ * @param initialPositionInStream In the absence of Kinesis checkpoint
info, this is the
+ * worker's initial starting position in
the stream.
+ * The values are either the beginning
of the stream
+ * per Kinesis' limit of 24 hours
+ *
(InitialPositionInStream.TRIM_HORIZON) or
+ * the tip of the stream
(InitialPositionInStream.LATEST).
+ * @param storageLevel Storage level to use for storing the received
objects
+ *
+ * @return ReceiverInputDStream[Array[Byte]]
+ */
+ def createStream(
+ ssc: StreamingContext,
+ streamName: String,
+ endpointUrl: String,
+ checkpointInterval: Duration,
+ initialPositionInStream: InitialPositionInStream,
+ storageLevel: StorageLevel): ReceiverInputDStream[Array[Byte]] = {
+ ssc.receiverStream(new KinesisReceiver(ssc.sc.appName, streamName,
endpointUrl,
+ checkpointInterval, initialPositionInStream, storageLevel))
+ }
+
+ /**
+ * Create a Java-friendly InputDStream that pulls messages from a
Kinesis stream.
+ *
+ * @param jssc Java StreamingContext object
+ * @param ssc StreamingContext object
+ * @param streamName Kinesis stream name
+ * @param endpointUrl Url of Kinesis service (e.g.,
https://kinesis.us-east-1.amazonaws.com)
+ * @param checkpointInterval Checkpoint interval for Kinesis
checkpointing.
+ * See the Kinesis Spark Streaming
documentation for more
+ * details on the different types of
checkpoints.
+ * @param initialPositionInStream In the absence of Kinesis checkpoint
info, this is the
+ * worker's initial starting position in
the stream.
+ * The values are either the beginning
of the stream
+ * per Kinesis' limit of 24 hours
+ *
(InitialPositionInStream.TRIM_HORIZON) or
+ * the tip of the stream
(InitialPositionInStream.LATEST).
+ * @param storageLevel Storage level to use for storing the received
objects
+ *
+ * @return JavaReceiverInputDStream[Array[Byte]]
+ *
+ * @return JavaReceiverInputDStream[Array[Byte]]
--- End diff --
Duplicate!
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
