To review initial code commit

pom.xml

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+<?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/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.rakshith</groupId>
+    <artifactId>usermanagement</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>usermanagement</name>
+    <packaging>pom</packaging>
+    <modules>
+        <module>user-service</module>
+        <module>user-actors</module>
+    </modules>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+    </properties>
+    <dependencies>
+    </dependencies>
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <artifactId>maven-assembly-plugin</artifactId>
+                    <version>3.3.0</version>
+                    <configuration>
+                        <descriptors>
+                            <descriptor>src/assembly/bin.xml</descriptor>
+                        </descriptors>
+                    </configuration>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+</project>

user-actors/pom.xml

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+<?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/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>user-actors</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>user-actors</name>
+    <parent>
+        <artifactId>usermanagement</artifactId>
+        <groupId>org.rakshith</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <properties>
+        <play2.version>2.7.2</play2.version>
+        <play2.plugin.version>1.0.0-rc5</play2.plugin.version>
+        <scala.major.version>2.11</scala.major.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>net.debasishg</groupId>
+            <artifactId>redisclient_2.11</artifactId>
+            <version>3.30</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>18.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.inject</groupId>
+            <artifactId>guice</artifactId>
+            <version>3.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.inject.extensions</groupId>
+            <artifactId>guice-assistedinject</artifactId>
+            <version>3.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.typesafe.play</groupId>
+            <artifactId>play_${scala.major.version}</artifactId>
+            <version>${play2.version}</version>
+            <exclusions>
+                <exclusion>
+                    <artifactId>guava</artifactId>
+                    <groupId>com.google.guava</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>com.typesafe.play</groupId>
+            <artifactId>play-guice_${scala.major.version}</artifactId>
+            <version>${play2.version}</version>
+            <exclusions>
+                <exclusion>
+                    <artifactId>guava</artifactId>
+                    <groupId>com.google.guava</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.scala-lang</groupId>
+            <artifactId>scala-library</artifactId>
+            <version>2.11.12</version>
+        </dependency>
+        <dependency>
+            <groupId>org.scalatest</groupId>
+            <artifactId>scalatest_${scala.major.version}</artifactId>
+            <version>3.0.8</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.scalamock</groupId>
+            <artifactId>scalamock_${scala.major.version}</artifactId>
+            <version>4.4.0</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.typesafe.akka</groupId>
+            <artifactId>akka-testkit_${scala.major.version}</artifactId>
+            <version>2.5.22</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    <build>
+        <sourceDirectory>src/main</sourceDirectory>
+        <testSourceDirectory>src/test</testSourceDirectory>
+        <plugins>
+            <plugin>
+                <groupId>net.alchim31.maven</groupId>
+                <artifactId>scala-maven-plugin</artifactId>
+                <version>4.4.0</version>
+                <configuration>
+                    <scalaVersion>2.11.12</scalaVersion>
+                    <checkMultipleScalaVersions>false</checkMultipleScalaVersions>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>scala-compile-first</id>
+                        <phase>process-resources</phase>
+                        <goals>
+                            <goal>add-source</goal>
+                            <goal>compile</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>scala-test-compile</id>
+                        <phase>process-test-resources</phase>
+                        <goals>
+                            <goal>testCompile</goal>
+                        </goals>
+                    </execution>
+                </executions>
+        </plugin>
+            <plugin>
+                <groupId>org.scalatest</groupId>
+                <artifactId>scalatest-maven-plugin</artifactId>
+                <version>2.0.0</version>
+                <executions>
+                    <execution>
+                        <id>test</id>
+                        <phase>test</phase>
+                        <goals>
+                            <goal>test</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.scoverage</groupId>
+                <artifactId>scoverage-maven-plugin</artifactId>
+                <version>1.4.1</version>
+                <configuration>
+                    <scalaVersion>2.11.12</scalaVersion>
+                    <aggregate>true</aggregate>
+                    <highlighting>true</highlighting>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

user-actors/src/main/org/rakshith/actors/TimeActor.scala

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+package org.rakshith.actors
+
+import akka.actor.Actor
+import play.api.libs.json.{Json, OWrites}
+import java.text.SimpleDateFormat
+import java.util.{Calendar, TimeZone}
+
+case class getTimeZone(timeZone: String)
+case class currentTime(time: String,timezone: String)
+
+class TimeActor extends Actor{
+
+  implicit val writes: OWrites[currentTime] = Json.writes[currentTime]
+
+  override def receive(): Receive ={
+          case getTimeZone(timeZone) if timeZone=="IST" =>
+            val time = Json.stringify(Json.toJson(currentTime(getTimeFromTimeZone("IST"),timeZone)))
+            sender() ! jsonConversion(time)
+          case getTimeZone(timeZone) if timeZone=="EST" =>
+            val time = Json.stringify(Json.toJson(currentTime(getTimeFromTimeZone("EST"),timeZone)))
+            sender() ! jsonConversion(time)
+          case getTimeZone(timeZone) if timeZone=="GMT" =>
+            val time = Json.stringify(Json.toJson(currentTime(getTimeFromTimeZone("GMT"),timeZone)))
+            sender() ! jsonConversion(time)
+          case getTimeZone(timeZone) if timeZone=="ALL" =>
+            val timeZones = Array("IST","EST","GMT")
+            val allTime = timeZones.map(a => Json.stringify(Json.toJson(currentTime(getTimeFromTimeZone(a),a))))
+            sender() ! jsonConversion(allTime.mkString(","))
+          case _ => sender() ! "Invalid Timezone"
+  }
+
+  def getTimeFromTimeZone(timeZone: String): String = {
+    val cal = Calendar.getInstance()
+    TimeZone.setDefault(TimeZone.getTimeZone(timeZone))
+    cal.setTimeZone(TimeZone.getTimeZone(timeZone))
+    val formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z")
+    val currentTime = cal.getTime
+    val dateFormat = formatter.format(currentTime)
+    dateFormat
+  }
+
+  def jsonConversion(time: String) : String ={
+    val jsonString: String = "{"+"\""+"Current Time"+"\""+":"+s"$time"+"}"
+    jsonString
+  }
+}

user-actors/src/main/org/rakshith/actors/UserActor.scala

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+package org.rakshith.actors
+
+import akka.actor.Actor
+import com.redis.RedisClient
+import com.typesafe.config.{Config, ConfigFactory}
+import play.api.libs.json.{JsValue, Json, OWrites}
+
+case class user(action : String,body :JsValue)
+case class createUser(phoneNumber : String,name : String,age : Int,location : String)
+
+class UserActor extends Actor{
+
+  implicit val writes: OWrites[createUser] = Json.writes[createUser]
+
+  override def receive() : Receive = {
+    case user(action,body) if action == "create" =>
+      sender() ! create(body)
+    case user(action,body) if action == "delete" =>
+      sender() ! delete(body)
+    case user(action,body) if action == "read" =>
+      sender() ! read(body)
+    case user(action,body) if action == "update" =>
+      sender() ! update(body)
+  }
+
+  val conf: Config = ConfigFactory.load
+  val hostName : String = conf.getString("redis-host")
+  val port :Int = conf.getInt("redis-port")
+  val redis = new RedisClient(hostName,port)
+
+  private def create(body: JsValue) : String ={
+    val phoneNumber : String = (body \ "phoneNumber").as[String]
+    if(!(redis.exists(phoneNumber))){
+      val name : String = (body \ "name").as[String]
+      val age : Int = (body \ "age").as[Int]
+      val location : String = (body \ "location").as[String]
+      val userDetails = Json.stringify(Json.toJson(createUser(phoneNumber,name,age,location)))
+      redis.set(phoneNumber,userDetails)
+      "User created successfully"
+    }
+    else
+    {
+      "User already exist"
+    }
+  }
+
+  private def delete(body:JsValue): String ={
+    val phoneNumber : String = (body \ "phoneNumber").as[String]
+    if(redis.exists(phoneNumber)){
+      redis.del(phoneNumber)
+      "Deleted user details successfully"
+    }
+    else
+      {
+        "User do not exist"
+      }
+  }
+
+  private def read(body:JsValue) : String ={
+    val phoneNumber : String = (body \ "phoneNumber").as[String]
+    if(redis.exists(phoneNumber)){
+      val userDetails = redis.get(phoneNumber)
+      show(userDetails)
+    }
+    else
+    {
+      "User do not exist"
+    }
+  }
+
+  private def update(body:JsValue) : String ={
+    val phoneNumber : String = (body \ "phoneNumber").as[String]
+    val newName : String = (body \ "name").as[String]
+    val newAge : Int = (body \ "age").as[Int]
+    val newLocation : String = (body \ "location").as[String]
+
+    if(redis.exists(phoneNumber)){
+      val details = redis.get(phoneNumber)
+      val exactDetails = show(details)
+      val parsedDetails = Json.parse(exactDetails)
+      val oldName : String = (parsedDetails \ "name").as[String]
+      val oldAge : Int = (parsedDetails \ "age").as[Int]
+      val oldLocation : String = (parsedDetails \ "location").as[String]
+      val userDetails = Json.stringify(Json.toJson(createUser(phoneNumber,newName,newAge,newLocation)))
+      redis.set(phoneNumber,userDetails)
+      s"Update user details from $oldName, $oldAge, $oldLocation to $newName, $newAge, $newLocation"
+    }
+    else
+    {
+      "User do not exist"
+    }
+
+  }
+
+  def show(x: Option[String]): String = x match {
+    case Some(s) => s
+    case None => "?"
+  }
+
+}
+
+

user-actors/src/main/resources/application.conf

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+#redis DB configuration details
+redis-host="127.0.0.1"
+redis-port=6379

user-actors/src/test/org/rakshith/actors/TestTimeActor.scala

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+package org.rakshith.actors
+
+import akka.actor.ActorSystem
+import akka.testkit.{DefaultTimeout, ImplicitSender, TestActorRef, TestKit}
+import org.scalatest.{BeforeAndAfterAll, Matchers, WordSpecLike}
+import java.text.SimpleDateFormat
+import java.util.{Calendar, TimeZone}
+
+class TestTimeActor extends TestKit(ActorSystem("UserActorTests")) with ImplicitSender with DefaultTimeout with WordSpecLike with BeforeAndAfterAll with Matchers{
+   def getTime(timezone : String): String ={
+     val cal = Calendar.getInstance()
+     TimeZone.setDefault(TimeZone.getTimeZone(timezone))
+     cal.setTimeZone(TimeZone.getTimeZone(timezone))
+     val formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z")
+     val currentTime = cal.getTime
+     val dateFormat = formatter.format(currentTime)
+     dateFormat
+   }
+  "Sending a timezone message to TimeActor" should {
+    "display the IST time when timezone is IST" in {
+      val testActor = TestActorRef[TimeActor]
+      testActor ! getTimeZone("IST")
+      val time = getTime("IST")
+      expectMsg("{"+ "\""+"Current Time"+"\"" +":"+ "{"+ "\""+"time"+"\""+":"+"\""+s"$time"+"\""+"," +"\""+"timezone"+"\""+":"+ "\""+"IST"+"\""+"}}"
+      )
+    }
+
+    "display the EST time when timezone is EST" in {
+      val testActor = TestActorRef[TimeActor]
+      testActor ! getTimeZone("EST")
+      val time = getTime("EST")
+      expectMsg("{"+ "\""+"Current Time"+"\"" +":"+ "{"+ "\""+"time"+"\""+":"+"\""+s"$time"+"\""+"," +"\""+"timezone"+"\""+":"+ "\""+"EST"+"\""+"}}"
+      )
+    }
+
+    "display the GMT time when timezone is GMT" in {
+      val testActor = TestActorRef[TimeActor]
+      testActor ! getTimeZone("GMT")
+      val time = getTime("GMT")
+      expectMsg("{"+ "\""+"Current Time"+"\"" +":"+ "{"+ "\""+"time"+"\""+":"+"\""+s"$time"+"\""+"," +"\""+"timezone"+"\""+":"+ "\""+"GMT"+"\""+"}}"
+      )
+    }
+
+    "display the invalid timezone when timezone is not IST or EST or GMT" in {
+      val testActor = TestActorRef[TimeActor]
+      testActor ! getTimeZone("UTC")
+      expectMsg("Invalid Timezone")
+    }
+  }
+}