Implemented standard ScalaApp where all the other class should inherit

.gitignore

@@ -1,6 +1,6 @@
 .DS_Store
 .idea/
-
+arguments.properties
 # ---> Java
 # Compiled class file
 *.class

execute_notebook.py

@@ -5,9 +5,20 @@ from pathlib import Path
 import re
 import subprocess
 
+
 regex = r"<\w*>(.*)<\/\w*>"
 
 
+def extract_argument(path):
+    arguments = {}
+    with open(path) as f:
+        for line in f:
+            if not line.startswith("#"):
+                s = line.strip().split("=")
+                arguments[s[0].strip()] = s[1].strip()
+    return arguments
+
+
 def get_jar_path():
     for current_path in glob.glob("target/*.jar"):
         return current_path
@@ -41,6 +52,17 @@ def extract_dependencies():
                     check_dependency = False
         return dep_to_add
 
+def extracting_class_args(args):
+    d = []
+    skip =["user_name", "reference_class"]
+    for item in args:
+        if item not in skip:
+            d.append(f"-{item}")
+            d.append(args[item])
+    
+    return " ".join(d)
+
+
 
 def to_path(dependency):
     home_dir = Path.home()
@@ -59,19 +81,12 @@ if __name__ == "__main__":
 
     parser = argparse.ArgumentParser(
         description="This scripts help you to publish, execute your check script in scala ")
-    parser.add_argument("user_name")
+    parser.add_argument("path")    
-    parser.add_argument("reference_class")
+    python_args = parser.parse_args()   
-    parser.add_argument("argument_file")
-    args = parser.parse_args()
 
-    print(f"reference_class = {args.reference_class} argument_file={args.argument_file}")
+    if os.path.exists(python_args.path):
-
+        script_argument = extract_argument(python_args.path)
-    if os.path.exists(args.argument_file):
         other_arguments = []        
-        with open(args.argument_file) as f:
-            for line in f:
-                if len(line.strip()):
-                    other_arguments.append(line.strip())
         print("Cleaning Compile application ")
         os.system('mvn clean compile package')
         main_jar_path = get_jar_path()
@@ -80,26 +95,28 @@ if __name__ == "__main__":
 
         print("copy on your root folder")
 
-        os.system("ssh {}@iis-cdh5-test-gw.ocean.icm.edu.pl rm -rf sandro_nb".format(args.user_name))
+        os.system("ssh {}@iis-cdh5-test-gw.ocean.icm.edu.pl rm -rf sandro_nb".format(script_argument['user_name']))
 
-        os.system("ssh {}@iis-cdh5-test-gw.ocean.icm.edu.pl mkdir sandro_nb".format(args.user_name))
+        os.system("ssh {}@iis-cdh5-test-gw.ocean.icm.edu.pl mkdir sandro_nb".format(script_argument['user_name']))
 
-        os.system(f"scp {main_jar_path} {args.user_name}@iis-cdh5-test-gw.ocean.icm.edu.pl:sandro_nb/")
+        os.system(f"scp {main_jar_path} {script_argument['user_name']}@iis-cdh5-test-gw.ocean.icm.edu.pl:sandro_nb/")
         jars = []
         for item in deps:
             name, p = to_path(item)
             if p:
                 print(f"Copying dependencies {p} to lib deps")
-                os.system(f"scp {p} {args.user_name}@iis-cdh5-test-gw.ocean.icm.edu.pl:sandro_nb/")
+                os.system(f"scp {p} {script_argument['user_name']}@iis-cdh5-test-gw.ocean.icm.edu.pl:sandro_nb/")
                 jars.append(name)
 
         j_name = ",".join(["sandro_nb/"+ item for item in jars])
         name = main_jar_path.replace("target/", "")
-        command = f"spark2-submit --master yarn --jars {j_name} --class {args.reference_class} sandro_nb/{name}"
+
+        class_args = extracting_class_args(script_argument)
+        command = f"spark2-submit --master yarn --jars {j_name} --class {script_argument['reference_class']} sandro_nb/{name} {class_args}"
+        
         print(f"executing command {command}")       
 
-        os.system(
+        os.system("ssh {}@iis-cdh5-test-gw.ocean.icm.edu.pl {} ".format(script_argument['user_name'], command, ))
-            "ssh {}@iis-cdh5-test-gw.ocean.icm.edu.pl {} {}".format(args.user_name, command, " ".join(other_arguments)))
 
     else:
-        raise Exception(f"path not found {args.argument_file}")
+        raise Exception(f"path not found {python_args.path}")

pom.xml

@@ -137,11 +137,18 @@
             <artifactId>dhp-schemas</artifactId>
             <version>3.15.0</version>
         </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
 
 
     </dependencies>
 
     <properties>
+        <junit-jupiter.version>5.6.1</junit-jupiter.version>
         <net.alchim31.maven.version>4.0.1</net.alchim31.maven.version>
         <dhp.jackson.version>2.9.6</dhp.jackson.version>
         <scala.version>2.11.12</scala.version>

src/main/java/com/sandro/app/SparkApp.scala

@@ -0,0 +1,78 @@
+package com.sandro.app
+
+import org.apache.spark.SparkConf
+import org.apache.spark.sql.SparkSession
+import org.slf4j.Logger
+import scala.collection.mutable
+
+trait SparkApp {
+
+  /** Utility to parse the arguments.properties using the
+   * property json in the classpath identified from
+   * the variable propertyPath
+   *
+   * @param args the list of arguments.properties
+   */
+  def parseArguments(args: Array[String]): mutable.Map[String, String] = {
+    var currentVariable: String = null
+    val argumentMap: mutable.Map[String, String] = mutable.Map()
+
+    args.zipWithIndex.foreach {
+      case (x, i) =>
+        if (i % 2 == 0) {
+          // ERROR in case the syntax is wrong
+          if (!x.startsWith("-")) throw new IllegalArgumentException("wrong input syntax expected -variable_name value")
+
+          if (x.startsWith("--"))
+            currentVariable = x.substring(2)
+          else
+            currentVariable = x.substring(1)
+        }
+        else argumentMap += (currentVariable -> x)
+    }
+    argumentMap
+  }
+
+  /** Here all the spark applications runs this method
+   * where the whole logic of the spark node is defined
+   */
+  def run(): Unit
+}
+
+abstract class AbstractScalaApplication(val args: Array[String],
+                                        log: Logger
+                                       ) extends SparkApp {
+
+  var argumentMap: mutable.Map[String, String] = _
+
+
+  var spark: SparkSession = _
+
+  def initialize(): SparkApp = {
+    argumentMap = parseArguments(args)
+    spark = createSparkSession()
+    spark.sparkContext.setLogLevel("WARN")
+    this
+  }
+
+  /** Utility for creating a spark session starting from parser
+   *
+   * @return a spark Session
+   */
+  private def createSparkSession(): SparkSession = {
+    require(argumentMap != null)
+
+    val conf: SparkConf = new SparkConf()
+    val master = argumentMap("master")
+    log.info(s"Creating Spark session: Master: $master")
+    SparkSession
+      .builder()
+      .config(conf)
+      .appName(getClass.getSimpleName)
+      .master(master)
+      .getOrCreate()
+  }
+
+}
+
+

src/main/java/eu/dnetlib/scholix/CheckRelation.scala

@@ -1,17 +1,45 @@
 package eu.dnetlib.scholix
 
 import com.fasterxml.jackson.databind.ObjectMapper
-import org.apache.spark.SparkConf
+import com.sandro.app.AbstractScalaApplication
 import org.apache.spark.sql.{Encoder, Encoders, SparkSession}
 import org.slf4j.{Logger, LoggerFactory}
 import eu.dnetlib.dhp.schema.oaf.Relation
+import eu.dnetlib.scholix.CheckRelation.logger
 
+class CheckRelation( args: Array[String], log: Logger) extends AbstractScalaApplication( args: Array[String], log: Logger) {
 
+  def filterRelations(r: Relation): Boolean = {
+    val relClassFilter = List(
+      "merges",
+      "isMergedIn",
+      "HasAmongTopNSimilarDocuments",
+      "IsAmongTopNSimilarDocuments"
+    )
+    if (relClassFilter.exists(k => k.equalsIgnoreCase(r.getRelClass)))
+      false
+    else {
+      if (r.getCollectedfrom == null || r.getCollectedfrom.size() == 0)
+        false
+      else if (r.getCollectedfrom.size() > 1)
+        true
+      else if (r.getCollectedfrom.size() == 1 && r.getCollectedfrom.get(0).getValue.equalsIgnoreCase("OpenCitations"))
+        false
+      else
+        true
+    }
+  }
 
-
+  /** Here all the spark applications runs this method
-object CheckRelation {
+   * where the whole logic of the spark node is defined
-
+   */
-  val logger: Logger = LoggerFactory.getLogger(CheckRelation.getClass.getName)
+  override def run(): Unit = {
+     val path = argumentMap("path")
+    logger.warn(s"path properties is $path")
+    if (path == null || path.isEmpty)
+      throw new IllegalArgumentException("missing path arguments.properties -path when launch file, check if it is inside the arguments.properties")
+    countRelation(path, spark)
+  }
 
 
   def countRelation(path:String, spark: SparkSession ): Unit = {
@@ -21,31 +49,29 @@ object CheckRelation {
     val df = spark.read.text(path).as[String]
 
     val mapper = new ObjectMapper()
-    val scholix_rel =df.map(s=> mapper.readValue(s, classOf[Relation])).as[Relation].filter(r => r.getDataInfo.getDeletedbyinference == false).count()
+//    val total = df.count
+//    val not_del_rel =df.map(s=> mapper.readValue(s, classOf[Relation])).as[Relation].filter(r => r.getDataInfo.getDeletedbyinference == false).count()
+//    logger.warn(s"Total number of relations not deleted by Inference: $not_del_rel/$total")
 
 
 
+    val total_rels_from_scholexplorer = df.map(s=> mapper.readValue(s, classOf[Relation]))
+      .filter(r => r.getDataInfo != null && !r.getDataInfo.getDeletedbyinference)
+      .filter(r => r.getSource.startsWith("50") && r.getTarget.startsWith("50"))
+//      .filter(r => filterRelations(r))
+      .count()
 
-
+    logger.warn(s"Relation used by Scholexplorer $total_rels_from_scholexplorer")
-    logger.warn(s"Total number of relations: ${df.count}")
-    logger.warn(s"Total number of relations not deleted by Inference: ${scholix_rel}")
-
-
-
   }
+}
 
 
+object CheckRelation {
+
+  val logger: Logger = LoggerFactory.getLogger(CheckRelation.getClass.getName)
 
   def main(args: Array[String]): Unit = {
-    val path = args(0)
+    new CheckRelation(args,logger).initialize().run()
-    val master = args(1)
-    val conf:SparkConf = new SparkConf()
-    val spark = SparkSession.builder().config(conf).master(master).getOrCreate()
-    spark.sparkContext.setLogLevel("WARN")
-    countRelation(path,spark)
-
-
-
   }
 
 

src/test/java/com/sandro/app/SparkAppTest.scala

@@ -0,0 +1,30 @@
+package com.sandro.app
+
+
+import org.junit.jupiter.api.Test
+import org.slf4j.{Logger, LoggerFactory}
+
+class TestApp ( args: Array[String], log: Logger)
+  extends AbstractScalaApplication( args: Array[String], log: Logger) {
+  /** Here all the spark applications runs this method
+   * where the whole logic of the spark node is defined
+   */
+  override def run(): Unit = {
+    println(argumentMap)
+
+
+  }
+}
+
+class SparkAppTest {
+
+  @Test
+  def testParsing() :Unit = {
+    val log: Logger = LoggerFactory.getLogger(this.getClass.getClass)
+    val args = "-key1 value1 --key-2 value2"
+    val t:TestApp=new TestApp(args.split(" "),log)
+    val m =t.parseArguments(args = args.split(" "))
+    println(m)
+  }
+
+}