Scala with Maven tutorial
http://docs.scala-lang.org/tutorials/scala-with-maven.html
Download latest version of Scala http://www.scala-lang.org/download/2.11.7.html
Upgrade Scala version
Create Scala Maven project from archetype using
Choose simple archetype ( number 5 or 30 )
https://github.com/mikolak-net/scala-quickstart-archetype
http://docs.scala-lang.org/tutorials/scala-with-maven.html
Download latest version of Scala http://www.scala-lang.org/download/2.11.7.html
Upgrade Scala version
[root@localhost Downloads]# dnf upgrade scala-2.11.7.rpm
Create Scala Maven project from archetype using
mvn archetype:generateChoose a number or apply filter (format: [groupId:]artifactId, case sensitive contains): 686: scala
Choose archetype:
1: remote -> co.cask.cdap:cdap-spark-scala-archetype (-)
2: remote -> com.github.igor-petruk.archetypes:maven-archetype-scala-executable (Creates executable Scala Project that is ready to run with 'java -jar')
3: remote -> de.schlichtherle:javafx-scala-demo (An archetype for a standalone JavaFX 2.0 application written in Scala.
The generated application is translated from the Colorful Circles demo from the
JavaFX 2.0 SDK.)
4: remote -> eu.stratosphere:quickstart-scala (-)
5: remote -> net.alchim31.maven:scala-archetype-simple (The maven-scala-plugin is used for compiling/testing/running/documenting scala code in maven.)
6: remote -> net.ladstatt:scala-javafx-archetype (The Scala JavaFX Archetype provides a simple template for a scala based
JavaFX project)
7: remote -> org.apache.camel.archetypes:camel-archetype-component-scala (Creates a new Camel component with Scala.)
8: remote -> org.apache.camel.archetypes:camel-archetype-scala (Creates a new Camel project using Scala DSL.)
9: remote -> org.apache.flink:flink-quickstart-scala (-)
10: remote -> org.fusesource.scalate.tooling:scalate-archetype-empty (An archetype which creates an empty Scalate web application)
11: remote -> org.fusesource.scalate.tooling:scalate-archetype-guice (An archetype which creates an empty Scalate Guice web application)
12: remote -> org.fusesource.scalate.tooling:scalate-archetype-guice_2.10 (An archetype which creates an empty Scalate Guice web application)
13: remote -> org.fusesource.scalate.tooling:scalate-archetype-guice_2.9 (An archetype which creates an empty Scalate Guice web application)
14: remote -> org.fusesource.scalate.tooling:scalate-archetype-jersey (An archetype which creates an empty Scalate web application)
15: remote -> org.fusesource.scalate.tooling:scalate-archetype-jersey_2.10 (An archetype which creates an empty Scalate web application)
16: remote -> org.fusesource.scalate.tooling:scalate-archetype-jersey_2.9 (An archetype which creates an empty Scalate web application)
17: remote -> org.fusesource.scalate.tooling:scalate-archetype-sitegen (An archetype which creates an empty Scalate static website generation project)
18: remote -> org.fusesource.scalate.tooling:scalate-archetype-sitegen_2.10 (An archetype which creates an empty Scalate static website generation project)
19: remote -> org.fusesource.scalate.tooling:scalate-archetype-sitegen_2.9 (An archetype which creates an empty Scalate static website generation project)
20: remote -> org.openjdk.jmh:jmh-scala-benchmark-archetype (Generates Scala benchmarking project, uses JMH bytecode processors)
21: remote -> org.scala-tools.archetypes:scala-archetype-simple (The maven-scala-plugin is used for compiling/testing/running/documenting scala code in maven.)
22: remote -> org.scalatra.scalate.tooling:scalate-archetype-guice_2.10 (An archetype which creates an empty Scalate Guice web application)
23: remote -> org.scalatra.scalate.tooling:scalate-archetype-guice_2.11 (An archetype which creates an empty Scalate Guice web application)
24: remote -> org.scalatra.scalate.tooling:scalate-archetype-jersey_2.10 (An archetype which creates an empty Scalate web application)
25: remote -> org.scalatra.scalate.tooling:scalate-archetype-jersey_2.11 (An archetype which creates an empty Scalate web application)
26: remote -> org.scalatra.scalate.tooling:scalate-archetype-sitegen_2.10 (An archetype which creates an empty Scalate static website generation project)
27: remote -> org.scalatra.scalate.tooling:scalate-archetype-sitegen_2.11 (An archetype which creates an empty Scalate static website generation project)
28: remote -> org.wicketstuff.scala:wicket-scala-archetype (Basic setup for a project that combines Scala and Wicket,
depending on the Wicket-Scala project. Includes an example Specs
test.)
29: remote -> org.wicketstuff.scala:wicketstuff-scala-archetype (Basic setup for a project that combines Scala and Wicket,
depending on the Wicket-Scala project. Includes an example Specs
test.)
30: remote -> pl.org.miki:scala-quickstart-archetype (Customizable cruft-free Scala archetype. Options:
-sourceFolders: [all-in-src-java, scala-only, both-split-src]. DEFAULT: all-in-src-java.
--all-in-src-java: Scala and Java code are both in src/main/java (same for test). Plays nicely with IDEs.
--scala-only: only src/main/scala set up, and set as source folder.
--both-split-src: both src/main/java and src/main/scala. Can play merry havock with IDEs, so not the default.
-testLibrary: [scalatest, specs2, scalacheck-only, junit-only]. DEFAULT: scalatest.
--scalatest: adds Scalatest AND Scalacheck AND JUnit for most of your testing needs.
--specs2: adds specs2 AND Scalacheck AND JUnit.
--scalacheck-junit: adds Scalacheck AND JUnit.
--junit-only: adds JUnit ONLY.
-scalaVersion: 2.10.x+. DEFAULT: 2.11.2.
*The Scala tool version is generated automatically.
*Some Scala versions may not be compatible with selected test library versions. Adjust as necessary.)
Choose a number or apply filter (format: [groupId:]artifactId, case sensitive contains): :
Choose simple archetype ( number 5 or 30 )
https://github.com/mikolak-net/scala-quickstart-archetype
Choose a number or apply filter (format: [groupId:]artifactId, case sensitive contains): : 5
Choose net.alchim31.maven:scala-archetype-simple version:
1: 1.4
2: 1.5
3: 1.6
Choose a number: 3: 3
Downloading: http://maven.repository.redhat.com/earlyaccess/all/net/alchim31/maven/scala-archetype-simple/1.6/scala-archetype-simple-1.6.jar
Downloading: http://maven.repository.redhat.com/techpreview/all/net/alchim31/maven/scala-archetype-simple/1.6/scala-archetype-simple-1.6.jar
Downloading: https://repo.maven.apache.org/maven2/net/alchim31/maven/scala-archetype-simple/1.6/scala-archetype-simple-1.6.jar
Downloaded: https://repo.maven.apache.org/maven2/net/alchim31/maven/scala-archetype-simple/1.6/scala-archetype-simple-1.6.jar (5 KB at 16.5 KB/sec)
Downloading: http://maven.repository.redhat.com/earlyaccess/all/net/alchim31/maven/scala-archetype-simple/1.6/scala-archetype-simple-1.6.pom
Downloading: http://maven.repository.redhat.com/techpreview/all/net/alchim31/maven/scala-archetype-simple/1.6/scala-archetype-simple-1.6.pom
Downloading: https://repo.maven.apache.org/maven2/net/alchim31/maven/scala-archetype-simple/1.6/scala-archetype-simple-1.6.pom
Downloaded: https://repo.maven.apache.org/maven2/net/alchim31/maven/scala-archetype-simple/1.6/scala-archetype-simple-1.6.pom (4 KB at 33.7 KB/sec)
Define value for property 'groupId': : scala
Define value for property 'artifactId': : class-finder
Define value for property 'version': 1.0-SNAPSHOT: :
Define value for property 'package': scala: : dave
Confirm properties configuration:
groupId: scala
artifactId: class-finder
version: 1.0-SNAPSHOT
package: dave
Y: :
Created project
[dave@localhost scala]$ find
.
./class-finder
./class-finder/pom.xml
./class-finder/.gitignore
./class-finder/src
./class-finder/src/main
./class-finder/src/main/scala
./class-finder/src/main/scala/dave
./class-finder/src/main/scala/dave/App.scala
./class-finder/src/test
./class-finder/src/test/scala
./class-finder/src/test/scala/samples
./class-finder/src/test/scala/samples/junit.scala
./class-finder/src/test/scala/samples/specs.scala
./class-finder/src/test/scala/samples/scalatest.scala
Add into pom.xml the build-helper-maven-plugin to add new source folders as described here http://docs.scala-lang.org/tutorials/scala-with-maven.html
Import existing Maven project into Eclipse
Edit .project and .classpath files to include Scala
Optionally
-- Run mvn eclipse:eclipse in project dir
--- Configure Eclipse workspace
dave@localhost class-finder]$ mvn -Declipse.workspace="/home/dave/workspace/scala" eclipse:configure-workspace
.project
[dave@localhost class-finder]$ more .project
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>class-finder</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.scala-ide.sdt.core.scalabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.m2e.core.maven2Builder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.scala-ide.sdt.core.scalanature</nature>
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>org.eclipse.m2e.core.maven2Nature</nature>
</natures>
</projectDescription>
.classpath
[dave@localhost class-finder]$ more .classpath
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" output="target/classes" path="src/main/java">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" output="target/test-classes" path="src/test/java">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMTyp
e/JavaSE-1.8">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" output="target/classes" path="src/main/scala">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" output="target/test-classes" path="src/test/scala">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="output" path="target/classes"/>
</classpath>
pom.xml
[dave@localhost class-finder]$ more pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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>
<groupId>scala</groupId>
<artifactId>class-finder</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<scala.version>2.11.7</scala.version>
<scala.version.tools>2.11</scala.version.tools>
</properties>
<build>
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.2.0</version>
<executions>
<execution>
<!-- this is so we don't end with a compile error in maven-compiler-plugin -->
<phase>process-sources</phase>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
<configuration>
<mainSourceDir>${project.build.sourceDirectory}/../java</mainSourceDir>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>src/main/scala</source>
</sources>
</configuration>
</execution>
<execution>
<id>add-test-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-test-source</goal>
</goals>
<configuration>
<sources>
<source>src/test/scala</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4</version>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>dave.MainClass</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>${scala.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.scalacheck</groupId>
<artifactId>scalacheck_${scala.version.tools}</artifactId>
<version>1.11.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.scalatest</groupId>
<artifactId>scalatest_${scala.version.tools}</artifactId>
<version>2.2.0</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
Add launcher for command line
<build>
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.2.0</version>
<configuration>
<launchers>
<launcher>
<id>foo</id>
<mainClass>dave.App</mainClass>
<!-- args are optional -->
<args>
<arg>arg1</arg>
</args>
<!-- jvmArgs are optional -->
<jvmArgs>
<jvmArg>-Xmx128m</jvmArg>
<jvmArg>-Djava.library.path=...</jvmArg>
</jvmArgs>
</launcher>
<!-- you could define other launcher -->
</launchers>
</configuration>Run project from command line
mvn scala:run
[INFO] launcher 'foo' selected => dave.App
Hello World!
concat arguments = arg1
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] /home/dave/git/scala/class-finder/src/main/scala:-1: info: compiling
[INFO] Compiling 1 source files to /home/dave/git/scala/class-finder/target/classes at 1447218248818
[ERROR] scalac error: bad option: '-make:transitive'
[ERROR] Failed to execute goal on project class-finder: Could not resolve dependencies for project scala:class-finder:jar:1.0-SNAPSHOT: Could not find artifact org.scalaz.stream:scalaz-stream_2.11:jar:0.7a in jboss-earlyaccess-repository (http://maven.repository.redhat.com/earlyaccess/all/) -> [Help 1]
