c99bcb7fea
An initial API that exposes SparkSQL functionality in PySpark. A PythonRDD composed of dictionaries, with string keys and primitive values (boolean, float, int, long, string) can be converted into a SchemaRDD that supports sql queries.
```
from pyspark.context import SQLContext
sqlCtx = SQLContext(sc)
rdd = sc.parallelize([{"field1" : 1, "field2" : "row1"}, {"field1" : 2, "field2": "row2"}, {"field1" : 3, "field2": "row3"}])
srdd = sqlCtx.applySchema(rdd)
sqlCtx.registerRDDAsTable(srdd, "table1")
srdd2 = sqlCtx.sql("SELECT field1 AS f1, field2 as f2 from table1")
srdd2.collect()
```
The last line yields ```[{"f1" : 1, "f2" : "row1"}, {"f1" : 2, "f2": "row2"}, {"f1" : 3, "f2": "row3"}]```
Author: Ahir Reddy <ahirreddy@gmail.com>
Author: Michael Armbrust <michael@databricks.com>
Closes #363 from ahirreddy/pysql and squashes the following commits:
0294497 [Ahir Reddy] Updated log4j properties to supress Hive Warns
307d6e0 [Ahir Reddy] Style fix
6f7b8f6 [Ahir Reddy] Temporary fix MIMA checker. Since we now assemble Spark jar with Hive, we don't want to check the interfaces of all of our hive dependencies
3ef074a [Ahir Reddy] Updated documentation because classes moved to sql.py
29245bf [Ahir Reddy] Cache underlying SchemaRDD instead of generating and caching PythonRDD
f2312c7 [Ahir Reddy] Moved everything into sql.py
a19afe4 [Ahir Reddy] Doc fixes
6d658ba [Ahir Reddy] Remove the metastore directory created by the HiveContext tests in SparkSQL
521ff6d [Ahir Reddy] Trying to get spark to build with hive
ab95eba [Ahir Reddy] Set SPARK_HIVE=true on jenkins
ded03e7 [Ahir Reddy] Added doc test for HiveContext
22de1d4 [Ahir Reddy] Fixed maven pyrolite dependency
e4da06c [Ahir Reddy] Display message if hive is not built into spark
227a0be [Michael Armbrust] Update API links. Fix Hive example.
58e2aa9 [Michael Armbrust] Build Docs for pyspark SQL Api. Minor fixes.
4285340 [Michael Armbrust] Fix building of Hive API Docs.
38a92b0 [Michael Armbrust] Add note to future non-python developers about python docs.
337b201 [Ahir Reddy] Changed com.clearspring.analytics stream version from 2.4.0 to 2.5.1 to match SBT build, and added pyrolite to maven build
40491c9 [Ahir Reddy] PR Changes + Method Visibility
1836944 [Michael Armbrust] Fix comments.
e00980f [Michael Armbrust] First draft of python sql programming guide.
b0192d3 [Ahir Reddy] Added Long, Double and Boolean as usable types + unit test
f98a422 [Ahir Reddy] HiveContexts
79621cf [Ahir Reddy] cleaning up cruft
b406ba0 [Ahir Reddy] doctest formatting
20936a5 [Ahir Reddy] Added tests and documentation
e4d21b4 [Ahir Reddy] Added pyrolite dependency
79f739d [Ahir Reddy] added more tests
7515ba0 [Ahir Reddy] added more tests :)
d26ec5e [Ahir Reddy] added test
e9f5b8d [Ahir Reddy] adding tests
906d180 [Ahir Reddy] added todo explaining cost of creating Row object in python
251f99d [Ahir Reddy] for now only allow dictionaries as input
09b9980 [Ahir Reddy] made jrdd explicitly lazy
c608947 [Ahir Reddy] SchemaRDD now has all RDD operations
725c91e [Ahir Reddy] awesome row objects
55d1c76 [Ahir Reddy] return row objects
4fe1319 [Ahir Reddy] output dictionaries correctly
be079de [Ahir Reddy] returning dictionaries works
cd5f79f [Ahir Reddy] Switched to using Scala SQLContext
e948bd9 [Ahir Reddy] yippie
4886052 [Ahir Reddy] even better
c0fb1c6 [Ahir Reddy] more working
043ca85 [Ahir Reddy] working
5496f9f [Ahir Reddy] doesn't crash
b8b904b [Ahir Reddy] Added schema rdd class
67ba875 [Ahir Reddy] java to python, and python to java
bcc0f23 [Ahir Reddy] Java to python
ab6025d [Ahir Reddy] compiling
322 lines
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322 lines
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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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~ Licensed to the Apache Software Foundation (ASF) under one or more
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~ contributor license agreements. See the NOTICE file distributed with
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~ this work for additional information regarding copyright ownership.
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~ The ASF licenses this file to You under the Apache License, Version 2.0
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~ (the "License"); you may not use this file except in compliance with
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~ the License. You may obtain a copy of the License at
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~
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~ http://www.apache.org/licenses/LICENSE-2.0
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~
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~ Unless required by applicable law or agreed to in writing, software
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~ distributed under the License is distributed on an "AS IS" BASIS,
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~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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~ See the License for the specific language governing permissions and
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~ limitations under the License.
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.apache.spark</groupId>
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<artifactId>spark-parent</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<groupId>org.apache.spark</groupId>
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<artifactId>spark-core_2.10</artifactId>
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<packaging>jar</packaging>
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<name>Spark Project Core</name>
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<url>http://spark.apache.org/</url>
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<!-- SPARK-1121: Adds an explicit dependency on Avro to work around a Hadoop 0.23.X issue -->
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<profiles>
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<profile>
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<id>yarn-alpha</id>
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<dependencies>
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<dependency>
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<groupId>org.apache.avro</groupId>
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<artifactId>avro</artifactId>
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</dependencies>
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</profile>
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</profiles>
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<dependencies>
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<dependency>
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<groupId>org.apache.hadoop</groupId>
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<artifactId>jetty-util</artifactId>
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<groupId>org.eclipse.jetty</groupId>
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<artifactId>jetty-server</artifactId>
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</dependency>
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<artifactId>guava</artifactId>
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<groupId>com.google.code.findbugs</groupId>
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<artifactId>jsr305</artifactId>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>jul-to-slf4j</artifactId>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>jcl-over-slf4j</artifactId>
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</dependency>
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<dependency>
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<groupId>log4j</groupId>
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<artifactId>log4j</artifactId>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-log4j12</artifactId>
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</dependency>
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<dependency>
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<groupId>com.ning</groupId>
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<artifactId>compress-lzf</artifactId>
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<dependency>
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<groupId>org.xerial.snappy</groupId>
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<artifactId>snappy-java</artifactId>
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<dependency>
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<groupId>com.twitter</groupId>
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<artifactId>chill_${scala.binary.version}</artifactId>
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<dependency>
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<groupId>com.twitter</groupId>
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<artifactId>chill-java</artifactId>
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<dependency>
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<groupId>commons-net</groupId>
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<artifactId>commons-net</artifactId>
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</dependency>
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<dependency>
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<groupId>${akka.group}</groupId>
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<artifactId>akka-remote_${scala.binary.version}</artifactId>
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</dependency>
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<dependency>
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<groupId>${akka.group}</groupId>
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<artifactId>akka-slf4j_${scala.binary.version}</artifactId>
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</dependency>
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<dependency>
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<groupId>${akka.group}</groupId>
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<artifactId>akka-testkit_${scala.binary.version}</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.scala-lang</groupId>
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<artifactId>scala-library</artifactId>
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<dependency>
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<groupId>org.json4s</groupId>
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<artifactId>json4s-jackson_${scala.binary.version}</artifactId>
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<version>3.2.6</version>
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<!-- see also exclusion for lift-json; this is necessary since it depends on
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scala-library and scalap 2.10.0, but we use 2.10.4, and only override
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scala-library -->
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<exclusions>
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<exclusion>
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<groupId>org.scala-lang</groupId>
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<groupId>com.clearspring.analytics</groupId>
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<artifactId>stream</artifactId>
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<groupId>org.apache.derby</groupId>
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<artifactId>derby</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.tachyonproject</groupId>
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<artifactId>tachyon</artifactId>
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<version>0.4.1-thrift</version>
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<groupId>org.apache.hadoop</groupId>
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</dependency>
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<dependency>
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<groupId>org.scalatest</groupId>
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<artifactId>scalatest_${scala.binary.version}</artifactId>
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<scope>test</scope>
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</dependency>
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<groupId>org.mockito</groupId>
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<artifactId>mockito-all</artifactId>
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<scope>test</scope>
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<dependency>
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<groupId>org.scalacheck</groupId>
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<artifactId>scalacheck_${scala.binary.version}</artifactId>
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<scope>test</scope>
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<dependency>
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<groupId>org.easymock</groupId>
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<artifactId>easymock</artifactId>
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</dependency>
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<dependency>
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<groupId>com.novocode</groupId>
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<artifactId>junit-interface</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.spark-project</groupId>
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<artifactId>pyrolite</artifactId>
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<version>2.0</version>
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</dependency>
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</dependencies>
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<build>
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<outputDirectory>target/scala-${scala.binary.version}/classes</outputDirectory>
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<testOutputDirectory>target/scala-${scala.binary.version}/test-classes</testOutputDirectory>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-antrun-plugin</artifactId>
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<executions>
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<execution>
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<phase>test</phase>
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<goals>
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<goal>run</goal>
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</goals>
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<configuration>
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<exportAntProperties>true</exportAntProperties>
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<target>
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<property name="spark.classpath" refid="maven.test.classpath" />
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<property environment="env" />
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<fail message="Please set the SCALA_HOME (or SCALA_LIBRARY_PATH if scala is on the path) environment variables and retry.">
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<condition>
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<not>
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<or>
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<isset property="env.SCALA_HOME" />
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<isset property="env.SCALA_LIBRARY_PATH" />
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</or>
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</not>
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</condition>
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</fail>
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</target>
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</configuration>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.scalatest</groupId>
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<artifactId>scalatest-maven-plugin</artifactId>
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<configuration>
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<environmentVariables>
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<SPARK_HOME>${basedir}/..</SPARK_HOME>
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<SPARK_TESTING>1</SPARK_TESTING>
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<SPARK_CLASSPATH>${spark.classpath}</SPARK_CLASSPATH>
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</environmentVariables>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>
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