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https://issues.apache.org/jira/browse/BAHIR-39?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15406487#comment-15406487
]
ASF GitHub Bot commented on BAHIR-39:
-------------------------------------
Github user lresende commented on a diff in the pull request:
https://github.com/apache/bahir/pull/13#discussion_r73405558
--- Diff:
sql-streaming-mqtt/src/main/scala/org/apache/bahir/sql/streaming/mqtt/MQTTStreamSource.scala
---
@@ -0,0 +1,191 @@
+/*
+ * 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.bahir.sql.streaming.mqtt
+
+import java.sql.Timestamp
+import java.text.SimpleDateFormat
+import java.util.Calendar
+import java.util.concurrent.CountDownLatch
+
+import scala.collection.concurrent.TrieMap
+import scala.collection.mutable.ArrayBuffer
+import scala.util.{Failure, Success, Try}
+
+import org.apache.bahir.utils.Logging
+import org.eclipse.paho.client.mqttv3._
+import org.eclipse.paho.client.mqttv3.persist.{MemoryPersistence,
MqttDefaultFilePersistence}
+
+import org.apache.spark.sql.{DataFrame, SQLContext}
+import org.apache.spark.sql.execution.streaming.{LongOffset, Offset,
Source}
+import org.apache.spark.sql.sources.{DataSourceRegister,
StreamSourceProvider}
+import org.apache.spark.sql.types.{StringType, StructField, StructType,
TimestampType}
+
+
+object MQTTStreamConstants {
+
+ val DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
--- End diff --
Not thread safe, see comments below on calendar usage...
> MQTT as a streaming source for SQL Streaming.
> ---------------------------------------------
>
> Key: BAHIR-39
> URL: https://issues.apache.org/jira/browse/BAHIR-39
> Project: Bahir
> Issue Type: New Feature
> Components: Spark SQL Data Sources
> Affects Versions: 2.1.0
> Reporter: Prashant Sharma
>
> MQTT compatible streaming source for Spark SQL Streaming.
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