-
-
Save ssmaroju/a0b0ae5606f061c3d59a to your computer and use it in GitHub Desktop.
Scala Spark skeleton implementing grep
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?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>my.org</groupId> | |
| <artifactId>spark-grep</artifactId> | |
| <version>1.0-SNAPSHOT</version> | |
| <dependencies> | |
| <dependency> | |
| <groupId>org.apache.spark</groupId> | |
| <artifactId>spark-core_2.10</artifactId> | |
| <version>1.2.0</version> | |
| </dependency> | |
| </dependencies> | |
| <build> | |
| <plugins> | |
| <plugin> | |
| <groupId>org.apache.maven.plugins</groupId> | |
| <artifactId>maven-compiler-plugin</artifactId> | |
| <version>3.1</version> | |
| </plugin> | |
| </plugins> | |
| </build> | |
| </project> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package spark.example | |
| import org.apache.spark.SparkContext | |
| import org.apache.spark.SparkContext._ | |
| import org.apache.spark.SparkConf | |
| object SparkGrep { | |
| def main(args: Array[String]) { | |
| if (args.length < 3) { | |
| System.err.println("Usage: SparkGrep <host> <input_file> <match_term>") | |
| System.exit(1) | |
| } | |
| val conf = new SparkConf().setAppName("SparkGrep").setMaster(args(0)) | |
| val sc = new SparkContext(conf) | |
| val inputFile = sc.textFile(args(1), 2).cache() | |
| val matchTerm : String = args(2) | |
| val numMatches = inputFile.filter(line => line.contains(matchTerm)).count() | |
| println("%s lines in %s contain %s".format(numMatches, args(1), matchTerm)) | |
| System.exit(0) | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment