Update Maven build to create assemblies expected by new scripts

This includes the following changes:
- The "assembly" package now builds in Maven by default, and creates an
  assembly containing both hadoop-client and Spark, unlike the old
  BigTop distribution assembly that skipped hadoop-client
- There is now a bigtop-dist package to build the old BigTop assembly
- The repl-bin package is no longer built by default since the scripts
  don't reply on it; instead it can be enabled with -Prepl-bin
- Py4J is now included in the assembly/lib folder as a local Maven repo,
  so that the Maven package can link to it
- run-example now adds the original Spark classpath as well because the
  Maven examples assembly lists spark-core and such as provided
- The various Maven projects add a spark-yarn dependency correctly

1 files changed, 115 insertions, 23 deletions

diff --git a/assembly/pom.xml b/assembly/pom.xml
index ca20ccadba..74990b6361 100644
--- a/assembly/pom.xml
+++ b/assembly/pom.xml
@@ -1,4 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ 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.
+  -->
+
 <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">
   <modelVersion>4.0.0</modelVersion>
   <parent>
@@ -13,29 +30,13 @@
   <name>Spark Project Assembly</name>
   <url>http://spark-project.org/</url>
 
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.4</version>
-        <executions>
-          <execution>
-          <id>dist</id>
-          <phase>package</phase>
-          <goals>
-            <goal>single</goal>
-          </goals>
-          <configuration>
-            <descriptors>
-              <descriptor>src/main/assembly/assembly.xml</descriptor>
-            </descriptors>
-          </configuration>
-          </execution>
-        </executions>
-      </plugin>
-    </plugins>
-  </build>
+  <repositories>
+    <!-- A repository in the local filesystem for the Py4J JAR, which is not in Maven central -->
+    <repository>
+      <id>lib</id>
+      <url>file://${project.basedir}/lib</url>
+    </repository>
+  </repositories>
 
   <dependencies>
     <dependency>
@@ -63,5 +64,96 @@
       <artifactId>spark-streaming</artifactId>
       <version>${project.version}</version>
     </dependency>
+    <dependency>
+      <groupId>net.sf.py4j</groupId>
+      <artifactId>py4j</artifactId>
+      <version>0.7</version>
+    </dependency>
   </dependencies>
+
+  <build>
+    <plugins>
+      <!-- Use the shade plugin to create a big JAR with all the dependencies -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-shade-plugin</artifactId>
+        <configuration>
+          <shadedArtifactAttached>false</shadedArtifactAttached>
+          <outputFile>${project.build.directory}/scala-${scala.version}/${project.artifactId}-${project.version}-hadoop${hadoop.version}.jar</outputFile>
+          <artifactSet>
+            <includes>
+              <include>*:*</include>
+            </includes>
+          </artifactSet>
+          <filters>
+            <filter>
+              <artifact>*:*</artifact>
+              <excludes>
+                <exclude>META-INF/*.SF</exclude>
+                <exclude>META-INF/*.DSA</exclude>
+                <exclude>META-INF/*.RSA</exclude>
+              </excludes>
+            </filter>
+          </filters>
+        </configuration>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>shade</goal>
+            </goals>
+            <configuration>
+              <transformers>
+                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
+                <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
+                  <resource>reference.conf</resource>
+                </transformer>
+              </transformers>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+  <profiles>
+    <profile>
+      <id>hadoop2-yarn</id>
+      <dependencies>
+        <dependency>
+          <groupId>org.spark-project</groupId>
+          <artifactId>spark-yarn</artifactId>
+          <version>${project.version}</version>
+        </dependency>
+      </dependencies>
+    </profile>
+    <profile>
+      <id>bigtop-dist</id>
+      <!-- This profile uses the assembly plugin to create a special "dist" package for BigTop
+           that contains Spark but not the Hadoop JARs it depends on. -->
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-assembly-plugin</artifactId>
+            <version>2.4</version>
+            <executions>
+              <execution>
+                <id>dist</id>
+                <phase>package</phase>
+                <goals>
+                  <goal>single</goal>
+                </goals>
+                <configuration>
+                  <descriptors>
+                    <descriptor>src/main/assembly/assembly.xml</descriptor>
+                  </descriptors>
+                </configuration>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
 </project>