Suppose I have three four columns like item,item_latitude,item_longitude and azimuth. I am trying to create a rectangle for each lat and long in the azimuth direction for +/-35 degree and 2 Kilometer. Example . There is a azimuth of site x is 45 degree so +35 and -35 degree to 45 degree would be 15 degree and…
Tag: scala
NoClassDefFoundError: scala/collection/convert/AsJavaExtensions
I am creating EmbeddedKafkaCluster in Java test, but getting the following exception, but I have added the kafka_2.12 depedencies which have scala depedencies. Java version: 11 Added the following depedencies Exception: Answer Upgrading to kafka_2.13 solved the issue.
How to sort ‘Map’ values in Scala against multiple factors?
I have a Map (datatype) with the following data structure: It contains a String and a ‘Time’ object. The ‘Time’ object is made up from my own class. Below you can see what it consists of: I have saved all my data into this ‘Map’ variable. But there is one problem: I want to…
How to get path for child in Array[String] returned by Jayway
I have nested json data, like so: And I am using the jayway jsonpath library in Scala to parse it. I could use something like JsonPath.read(myData,”$.libraries[*].genres[*].books[*]”) to get an array of all the books pooled from every library. What I want is to know the path for each book, e.g. &#…
How to use scala list and java list in the same file in scala code base?
I have a use case where I want to use scala list and java list in the same file in scala codebase. I am using java list by importing java.util.list. Now If I want to use the scala list in the same file, it’s taking that list as java list and throws an error. Answer You can use Fully Qualified
Compare schema of dataframe with schema of other dataframe
I have schema from two dataset read from hdfs path and it is defined below: val df = spark.read.parquet(“/path”) df.printSchema() Answer Since your schema file seems like a CSV : use isSchemaMatching for further logic
java.util.concurrent.ExecutionException: java.lang.NoSuchMethodError
I have a few Scala test classes in a gradle project that work just fine when run individually. But when run through the gradle test task, it fails with the following error in beforeEach of all classes – The line that it is failing at is creating an instance of a Scala case class which has some default v…
How to specify role at node level within Akka cluster?
Given the following appliction.conf : To discern between the roles within an Actor I use : edited from src (https://doc.akka.io/docs/akka/current/cluster-usage.html) To enable role for a node I use the following config : Within application.conf I configure the array for the roles but this appears to be at the…
To find the weekly date range based on the input
I am having scenario with my property file input like below for weekly reports Data lag – 10 days Run day – Tuesday. The requirement is based on the date lag: I have to move the calendar 10 days back. Then I want to find the Tuesday (any weekday may be specified in a parameter). From that I want t…
Why regex extract return wrong value in scala [closed]
val pattern = “[A-Z]{2,3}[0-9]{4}”.r val extractedData = pattern.findFirstIn(“find ABCD1234”) I have the above code to look for valid data. Input: find DTD0001 Expected Output: …