Read property file in scala
WebApr 12, 2012 · There are several ways of reading configuration files in Scala including the java properties way with the deprecated Configgy and quite some more. One way which is easy and comes in handy is with the Typesafe Config project which is also used in Akka. Let us quickly see how to set it up, WebMar 17, 2024 · JDK is required to run Scala in JVM. Read and Write parquet files In this example, I am using Spark SQLContext object to read and write parquet files. Code import org.apache.spark. {SparkConf, SparkContext} import org.apache.spark.sql. {DataFrame, SQLContext} object ParquetTest { def main (args: Array [String]) = { // Two threads local [2]
Read property file in scala
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WebSpark SQL provides spark.read ().csv ("file_name") to read a file or directory of files in CSV format into Spark DataFrame, and dataframe.write ().csv ("path") to write to a CSV file. WebApr 29, 2024 · There are multiple ways to read the configuration files in Scala but here are two of my most preferred approaches depending on the structure of the configurations: …
WebJun 1, 2015 · import scala.util.Properties class MyConfig (fileNameOption: Option [String] = None) { val config = fileNameOption.fold ( ifEmpty = ConfigFactory.load () ) ( file => … WebOct 8, 2024 · The most common and idiomatic way to read environment variables in Scala is by using the sys package object, which puts the environment variables into an immutable. Map [String, String]: scala> sys.env res0: scala.collection.immutable. Map [ String, String] = HashMap ( JAVA_MAIN_CLASS_27606 -> scala.tools.nsc.
WebApr 12, 2012 · Reading Time: 2 minutes. There are several ways of reading configuration files in Scala including the java properties way with the deprecated Configgy and quite … Web1 day ago · The deal involved the sale of three properties in Savannah, Georgia, that were owned by Thomas and his relatives to the megadonor, Harlan Crow, according to …
WebNow open spark-shell and access it from the scala prompt. scala > System.getenv ('ENV_NAME') 7. Run Unix Shell Script File In case you wanted to run a Unix shell file (.sh file) from the scala prompt, you can do this by using :sh . I have nnk.sh file with content echo 'SparkByExamples.com' > nnk.out
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