initial commit

.drone.yml

@@ -0,0 +1,68 @@
+kind: pipeline
+type: docker
+name: default
+
+steps:
+- name: restore-cache-with-filesystem
+  image: meltwater/drone-cache
+  settings:
+    backend: "filesystem"
+    restore: true
+    cache_key: "{{ .Repo.Name }}"
+    archive_format: "gzip"
+    filesystem_cache_root: "/tmp/cache"
+    mount:
+      - 'build'
+      - '.gradle'
+  volumes:
+  - name: cache
+    path: /tmp/cache
+
+- name: build_application
+  image: openjdk:11-jdk
+  commands:
+    - ./gradlew build -x test
+
+- name: rebuild-cache-with-filesystem
+  image: meltwater/drone-cache:dev
+  pull: true
+  settings:
+    backend: "filesystem"
+    rebuild: true
+    cache_key: "{{ .Repo.Name }}"
+    archive_format: "gzip"
+    filesystem_cache_root: "/tmp/cache"
+    mount:
+      - 'build'
+      - '.gradle'
+  volumes:
+  - name: cache
+    path: /tmp/cache
+
+- name: kaniko
+  image: banzaicloud/drone-kaniko
+  settings:
+    registry: registry.kmlabz.com
+    repo: tormakris/${DRONE_REPO_NAME}
+    username:
+      from_secret: DOCKER_USERNAME
+    password:
+      from_secret: DOCKER_PASSWORD
+    tags:
+      - latest
+      - ${DRONE_BUILD_NUMBER}
+
+- name: send telegram notification
+  image: appleboy/drone-telegram
+  settings:
+    token:
+      from_secret: TELEGRAM_TOKEN
+    to:
+      from_secret: TELEGRAM_TO_ID
+  when:
+    status: [ failure ]
+
+volumes:
+- name: cache
+  host:
+    path: "/tmp/cache"

.gitignore

@@ -0,0 +1,8 @@
+/.gradle
+/.idea
+/out
+/build
+*.iml
+*.ipr
+*.iws
+*.log

Dockerfile

@@ -0,0 +1,14 @@
+FROM openjdk:11-jre
+
+ENV APPLICATION_USER ktor
+RUN useradd $APPLICATION_USER
+
+RUN mkdir /app
+RUN chown -R $APPLICATION_USER /app
+
+USER $APPLICATION_USER
+
+COPY ./build/libs/input-service.jar /app/input-service.jar
+WORKDIR /app
+
+CMD ["java", "-server", "-XX:+UnlockExperimentalVMOptions", "-XX:InitialRAMFraction=2", "-XX:MinRAMFraction=2", "-XX:MaxRAMFraction=2", "-XX:+UseG1GC", "-XX:MaxGCPauseMillis=100", "-XX:+UseStringDeduplication", "-jar", "input-service.jar"]

api.yaml

@@ -0,0 +1,151 @@
+swagger: "2.0"
+info:
+  description: "This is the input interface of the Birbnetes system."
+  version: "1.1.0"
+  title: "Input Service"
+  contact:
+    email: "tormakristof@tormakristof.eu"
+  license:
+    name: "Apache 2.0"
+    url: "http://www.apache.org/licenses/LICENSE-2.0.html"
+host: "dev.k8s.tcloud.enginner"
+basePath: "/api/input/v1"
+tags:
+  - name: "input"
+    description: "Input Service interaction"
+schemes:
+  - "https"
+  - "http"
+paths:
+  /sample:
+    get:
+      summary: Get all stored input queries
+      operationId: getall
+      tags:
+        - input
+      responses:
+        "200":
+          description: Array of input objects
+          schema:
+            $ref: '#/definitions/InputResponse'
+        "404":
+          description: No object matching filter
+          schema:
+            $ref: '#/definitions/ApiResponse'
+
+    post:
+      tags:
+        - "input"
+      summary: "uploads a sample into the system"
+      description: ""
+      operationId: "uploadFile"
+      consumes:
+        - "multipart/form-data"
+      produces:
+        - "application/json"
+      parameters:
+        - name: "description"
+          in: "formData"
+          description: "JSON"
+          required: true
+          type: "string"
+          format: "date"
+        - name: "file"
+          in: "formData"
+          description: "Wave file to upload"
+          required: true
+          type: "file"
+      responses:
+        200:
+          description: "successful operation"
+          schema:
+            $ref: "#/definitions/ApiResponse"
+        415:
+          description: "Media type error"
+          schema:
+            $ref: "#/definitions/ApiResponse"
+        400:
+          description: "JSON parse error"
+          schema:
+            $ref: "#/definitions/ApiResponse"
+        417:
+          description: "JSON invalid schema"
+          schema:
+            $ref: "#/definitions/ApiResponse"
+        469:
+          description: "No file found"
+          schema:
+            $ref: "#/definitions/ApiResponse"
+        470:
+          description: "Description missing"
+          schema:
+            $ref: "#/definitions/ApiResponse"
+
+  /sample/{tagID}:
+    get:
+      summary: Get input object by ID
+      operationId: getInput
+      tags:
+        - input
+      parameters:
+        - name: tagID
+          in: path
+          description: ID of input object file
+          required: true
+          type: string
+          format: uuid
+      responses:
+        "200":
+          description: input object
+          schema:
+            $ref: '#/definitions/InputSingeResponse'
+        "404":
+          description: Tag not found
+          schema:
+            $ref: '#/definitions/ApiResponse'
+
+
+definitions:
+  InputSingeResponse:
+    type: "object"
+    properties:
+      status:
+        type: "string"
+      message:
+        $ref: '#/definitions/InputObject'
+    required:
+      - status
+      - message
+
+  InputResponse:
+    type: "array"
+    items:
+      $ref: "#/definitions/InputObject"
+
+
+  InputObject:
+    type: "object"
+    properties:
+      tag:
+        type: "string"
+        format: "uuid"
+      date:
+        type: "string"
+        format: "date"
+      device_id:
+        type: "integer"
+    required:
+      - tag
+      - date
+      - device_id
+
+  ApiResponse:
+    type: "object"
+    properties:
+      status:
+        type: "string"
+      message:
+        type: "string"
+    required:
+      - status
+      - message

build.gradle

@@ -0,0 +1,76 @@
+buildscript {
+    repositories {
+        jcenter()
+        maven { url "https://plugins.gradle.org/m2/" }
+    }
+    
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "com.github.jengelman.gradle.plugins:shadow:5.2.0"
+        classpath "org.koin:koin-gradle-plugin:$koin_version"
+    }
+}
+
+tasks.withType(JavaCompile) {
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
+}
+
+apply plugin: 'kotlin'
+apply plugin: "com.github.johnrengelman.shadow"
+apply plugin: 'application'
+apply plugin: 'koin'
+
+group 'com.kmalbz'
+version '0.0.1'
+mainClassName = "io.ktor.server.netty.EngineMain"
+
+sourceSets {
+    main.kotlin.srcDirs = main.java.srcDirs = ['src']
+    test.kotlin.srcDirs = test.java.srcDirs = ['test']
+    main.resources.srcDirs = ['resources']
+    test.resources.srcDirs = ['testresources']
+}
+
+repositories {
+    mavenLocal()
+    jcenter()
+    maven { url 'https://kotlin.bintray.com/ktor' }
+}
+
+dependencies {
+    compile 'org.postgresql:postgresql:42.2.2'
+    compile 'org.jetbrains.exposed:exposed-core:0.23.1'
+    compile 'org.jetbrains.exposed:exposed-dao:0.23.1'
+    compile 'org.jetbrains.exposed:exposed-jdbc:0.23.1'
+    compile 'org.jetbrains.exposed:exposed-java-time:0.23.1'
+    compile 'com.rabbitmq:amqp-client:2.7.1'
+    compile 'com.zaxxer:HikariCP:2.7.8'
+    compile 'com.viartemev:the-white-rabbit:0.0.5'
+    implementation "org.koin:koin-ktor:$koin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+    implementation "io.ktor:ktor-server-netty:$ktor_version"
+    implementation "ch.qos.logback:logback-classic:$logback_version"
+    implementation "io.ktor:ktor-server-core:$ktor_version"
+    implementation "io.ktor:ktor-gson:$ktor_version"
+    implementation "io.ktor:ktor-server-host-common:$ktor_version"
+    implementation "io.ktor:ktor-client-core:$ktor_version"
+    implementation "io.ktor:ktor-client-core-jvm:$ktor_version"
+    implementation "io.ktor:ktor-client-apache:$ktor_version"
+    implementation "io.ktor:ktor-auth:$ktor_version"
+    testImplementation "io.ktor:ktor-server-tests:$ktor_version"
+}
+
+kotlin.experimental.coroutines = 'enable'
+
+tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
+    kotlinOptions {
+        jvmTarget = "11"
+    }
+}
+
+shadowJar {
+    baseName = 'input-service'
+    classifier = null
+    version = null
+}

docker-compose.yml

@@ -0,0 +1,47 @@
+version: '3'
+
+services:
+
+  input-service-postgres:
+    image: "postgres:12"
+    restart: "always"
+    volumes:
+      - "ktor-data:/var/lib/postgresql/data"
+    ports:
+      - "127.0.0.1:54321:5432"
+    environment:
+      POSTGRES_USER: "input-service"
+      POSTGRES_PASSWORD: "input-service"
+      POSTGRES_DB: "input-service"
+
+  input-service:
+    image: "registry.kmlabz.com/tormakris/input-service"
+    restart: "always"
+    ports:
+      - "127.0.0.1:8080:8080"
+    environment:
+      DB_USER: "input-service"
+      DB_PASSWORD: "input-service"
+      POSTGRES_DB: "input-service"
+      DB_URL: "jdbc:postgresql://input-service-postgres:5432/input-service"
+      MQ_HOST: rabbitmq
+      MQ_USERNAME: rabbitmq
+      MQ_PASSWORD: rabbitmq
+    depends_on:
+      - rabbitmq
+      - output-service-postgres
+
+  rabbitmq:
+    image: "rabbitmq:3-management"
+    hostname: "rabbitmq"
+    environment:
+      RABBITMQ_ERLANG_COOKIE: "SWQOKODSQALRPCLNMEQG"
+      RABBITMQ_DEFAULT_USER: "rabbitmq"
+      RABBITMQ_DEFAULT_PASS: "rabbitmq"
+      RABBITMQ_DEFAULT_VHOST: "/"
+    ports:
+      - "127.0.0.1:15672:15672"
+      - "127.0.0.1:5672:5672"
+
+volumes:
+  ktor-data:

gradle.properties

@@ -0,0 +1,5 @@
+ktor_version=1.3.2
+kotlin.code.style=official
+kotlin_version=1.3.72
+logback_version=1.2.1
+koin_version=2.1.5

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Sat Apr 04 18:02:20 CEST 2020
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip

gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

k8s/configmap.yml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: input-service-config
+  labels:
+    app: input-service
+  namespace: birbnetes
+data:
+  PORT: "8080"
+  DB_URL: "jdbc:postgresql://input-postgres:5432/input-service"
+  DB_USER: input-service
+  DB_PASSWORD: input-service-supersecret
+  MQ_HOST: birb-rabbitmq
+  MQ_USERNAME: user
+  MQ_PASSWORD: 1wZVQnP5vy

k8s/deployment.yml

@@ -0,0 +1,29 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: input-service
+  namespace: birbnetes
+  labels:
+    app: input-service
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: input-service
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app: input-service
+    spec:
+      containers:
+        - image: registry.kmlabz.com/tormakris/input-service
+          name: input-service
+          envFrom:
+            - configMapRef:
+                name: input-service-config
+          ports:
+            - containerPort: 8080
+      imagePullSecrets:
+      - name: regcred

k8s/service.yml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: input-service
+  namespace: birbnetes
+  labels:
+    app: input-service
+spec:
+  ports:
+    - name: input-service
+      port: 80
+      targetPort: 8080
+      protocol: TCP
+  selector:
+    app: input-service
+  type: ClusterIP

resources/application.conf

@@ -0,0 +1,21 @@
+ktor {
+    deployment {
+        port = 8080
+        port = ${?PORT}
+    }
+    application {
+        modules = [ com.kmalbz.ApplicationKt.module ]
+    }
+    db {
+        jdbc = ${DB_URL}
+        user = ${DB_USER}
+        password = ${DB_PASSWORD}
+    }
+    mq{
+        host = ${MQ_HOST}
+        username = ${MQ_USERNAME}
+        password = ${MQ_PASSWORD}
+        exchange = "input"
+        exchange = ${?MQ_EXCHANGE}
+    }
+}

resources/logback.xml

@@ -0,0 +1,12 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{YYYY-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    <root level="trace">
+        <appender-ref ref="STDOUT"/>
+    </root>
+    <logger name="org.eclipse.jetty" level="INFO"/>
+    <logger name="io.netty" level="INFO"/>
+</configuration>

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = "input-sevice"

src/Application.kt

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+package com.kmalbz
+
+import com.kmalbz.api.route.InputServiceServer
+import io.ktor.application.*
+import io.ktor.response.*
+import io.ktor.routing.*
+import io.ktor.http.*
+import io.ktor.gson.*
+import io.ktor.features.*
+import org.apache.http.HttpException
+import com.kmalbz.database.DatabaseFactory
+import com.kmalbz.database.dao.InputObjects
+import io.ktor.util.KtorExperimentalAPI
+import com.rabbitmq.client.*
+import com.typesafe.config.ConfigFactory
+import io.ktor.config.HoconApplicationConfig
+import org.jetbrains.exposed.sql.SchemaUtils
+import org.jetbrains.exposed.sql.transactions.transaction
+import org.koin.ktor.ext.Koin
+
+fun main(args: Array<String>): Unit = io.ktor.server.netty.EngineMain.main(args)
+
+@KtorExperimentalAPI
+@Suppress("unused") // Referenced in application.conf
+fun Application.module() {
+    install(ContentNegotiation) {
+        gson {
+        }
+    }
+
+    install(Koin) {
+        printLogger()
+        modules(com.kmalbz.di.injectionModule)
+    }
+
+    DatabaseFactory.init()
+    transaction{
+        SchemaUtils.create(InputObjects)
+    }
+
+    val appConfig = HoconApplicationConfig(ConfigFactory.load())
+    val factory = ConnectionFactory()
+    factory.host = appConfig.property("ktor.mq.host").getString()
+    factory.username = appConfig.property("ktor.mq.username").getString()
+    factory.password = appConfig.property("ktor.mq.password").getString()
+
+    val connection = factory.newConnection()
+    val channel = connection.createChannel()
+
+    val rabbitExchangeName = appConfig.property("ktor.mq.exchange").getString()
+
+    channel.exchangeDeclare(rabbitExchangeName, BuiltinExchangeType.FANOUT)
+    val queueName = channel.queueDeclare().queue
+    channel.queueBind(queueName, rabbitExchangeName, "")
+
+    routing {
+        install(StatusPages) {
+            exception<HttpException> {
+                call.respond(HttpStatusCode.BadRequest)
+            }
+
+            exception<IllegalStateException> {
+                call.respond(HttpStatusCode.NotAcceptable)
+            }
+        }
+
+        InputServiceServer().apply {
+            registerOutput()
+        }
+    }
+}

src/api/model/ApiObject.kt

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+package com.kmalbz.api.model
+
+import com.google.gson.annotations.SerializedName
+
+data class ApiObject(
+    @SerializedName("tag") val tag: String,
+    @SerializedName("probability") val probability: Double
+)

src/api/route/InputServiceServer.kt

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+package com.kmalbz.api.route
+
+import com.kmalbz.database.service.IInputObjectService
+import io.ktor.application.call
+import io.ktor.http.HttpStatusCode
+import io.ktor.response.respond
+import io.ktor.routing.Routing
+import io.ktor.routing.get
+import org.koin.ktor.ext.inject
+import java.time.LocalDate
+import java.time.format.DateTimeFormatter
+
+/**
+ * Output Service - RDB
+ * 
+ * This is the output interface of the Birbnetes system.
+ */
+class InputServiceServer {
+    /**
+     * output
+     */
+    fun Routing.registerOutput() {
+        val resultObjectService by inject<IInputObjectService>()
+        get("/output"){
+            call.respond(resultObjectService.getAllResultObjects())
+        }
+
+        get("/output/filter/negative") {
+            val resultList = resultObjectService.getResultObjecLessthanProbability(0.5) ?: call.respond(HttpStatusCode.NotFound)
+
+            call.respond(resultList)
+        }
+
+        get("/output/filter/positive") {
+            val resultList = resultObjectService.getResultObjecGreaterthanProbability(0.5) ?: call.respond(HttpStatusCode.NotFound)
+
+            call.respond(resultList)
+        }
+
+        get("/output/filter/undecided") {
+            val resultList = resultObjectService.getResultObjecEqualsProbability(0.5) ?: call.respond(HttpStatusCode.NotFound)
+
+            call.respond(resultList)
+        }
+
+        get("/output/after/{dateAfter}") {
+            val dateAfter = call.parameters["dateAfter"] ?: error(HttpStatusCode.NotAcceptable)
+            val dateTimeFormatter: DateTimeFormatter = DateTimeFormatter.ISO_LOCAL_DATE
+            val localDateAfter : LocalDate = LocalDate.parse(dateAfter,dateTimeFormatter)
+            val resultList = resultObjectService.getResultObjectafterDate(localDateAfter) ?: call.respond(HttpStatusCode.NotFound)
+
+            call.respond(resultList)
+        }
+
+        get("/output/before/{dateBefore}") {
+            val dateAfter = call.parameters["dateBefore"] ?: error(HttpStatusCode.NotAcceptable)
+            val dateTimeFormatter: DateTimeFormatter = DateTimeFormatter.ISO_LOCAL_DATE
+            val localDateBefore : LocalDate = LocalDate.parse(dateAfter,dateTimeFormatter)
+            val resultList = resultObjectService.getResultObjectbeforeDate(localDateBefore) ?: call.respond(HttpStatusCode.NotFound)
+
+            call.respond(resultList)
+        }
+
+        get("/output/{tagID}") {
+            val tagID = call.parameters["tagID"] ?: error(HttpStatusCode.NotAcceptable)
+            val resultObject = resultObjectService.getResultObjectbyTag(tagID) ?: call.respond(HttpStatusCode.NotFound)
+
+            call.respond(resultObject)
+        }
+    }
+}

src/database/DatabaseFactory.kt

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+package com.kmalbz.database
+
+import com.typesafe.config.ConfigFactory
+import com.zaxxer.hikari.*
+import io.ktor.config.HoconApplicationConfig
+import io.ktor.util.KtorExperimentalAPI
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import org.jetbrains.exposed.sql.*
+import org.jetbrains.exposed.sql.transactions.transaction
+
+object DatabaseFactory {
+
+    @KtorExperimentalAPI
+    private val appConfig = HoconApplicationConfig(ConfigFactory.load())
+    @KtorExperimentalAPI
+    private val dbUrl = appConfig.property("ktor.db.jdbc").getString()
+    @KtorExperimentalAPI
+    private val dbUser = appConfig.property("ktor.db.user").getString()
+    @KtorExperimentalAPI
+    private val dbPassword = appConfig.property("ktor.db.password").getString()
+
+    @KtorExperimentalAPI
+    fun init() {
+        Database.connect(hikari())
+    }
+
+    @KtorExperimentalAPI
+    private fun hikari(): HikariDataSource {
+        val config = HikariConfig()
+        config.driverClassName = "org.postgresql.Driver"
+        config.jdbcUrl = dbUrl
+        config.username = dbUser
+        config.password = dbPassword
+        config.maximumPoolSize = 3
+        config.isAutoCommit = false
+        config.transactionIsolation = "TRANSACTION_REPEATABLE_READ"
+        config.validate()
+        return HikariDataSource(config)
+    }
+
+    suspend fun <T> dbQuery(block: () -> T): T =
+        withContext(Dispatchers.IO) {
+            transaction { block() }
+        }
+}

src/database/dao/InputObjects.kt

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+package com.kmalbz.database.dao
+
+import org.jetbrains.exposed.dao.id.IntIdTable
+import org.jetbrains.exposed.sql.*
+import org.jetbrains.exposed.sql.`java-time`.date
+import java.time.LocalDate
+
+object InputObjects : IntIdTable() {
+    val tag: Column<String> = varchar("tag",32)
+    val date: Column<LocalDate> = date("date").default(LocalDate.now())
+    val probability: Column<Double> = double("probability")
+    override val primaryKey = PrimaryKey(id, name = "PK_ResultObject_Id")
+}

src/database/model/InputObject.kt

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+package com.kmalbz.database.model
+
+import com.kmalbz.database.dao.InputObjects
+import org.jetbrains.exposed.dao.IntEntity
+import org.jetbrains.exposed.dao.IntEntityClass
+import org.jetbrains.exposed.dao.id.EntityID
+
+class InputObject(id: EntityID<Int>): IntEntity(id) {
+    companion object : IntEntityClass<InputObject>(InputObjects)
+    var tag by InputObjects.tag
+    var date by InputObjects.date
+    var probability by InputObjects.probability
+}

src/database/service/IInputObjectService.kt

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+package com.kmalbz.database.service
+
+import com.kmalbz.api.model.ApiObject
+import java.time.LocalDate
+
+interface IInputObjectService{
+    fun addOne(apiObject: ApiObject)
+    suspend fun getAllResultObjects(): List<ApiObject>
+    suspend fun getResultObjectbyTag(tag: String): ApiObject?
+    suspend fun getResultObjectbyDate(date: LocalDate): List<ApiObject>?
+    suspend fun getResultObjectbeforeDate(date: LocalDate): List<ApiObject>?
+    suspend fun getResultObjectafterDate(date: LocalDate): List<ApiObject>?
+    suspend fun getResultObjecGreaterthanProbability(probability: Double): List<ApiObject>?
+    suspend fun getResultObjecLessthanProbability(probability: Double): List<ApiObject>?
+    suspend fun getResultObjecEqualsProbability(probability: Double): List<ApiObject>?
+}

src/database/service/InputObjectService.kt

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+package com.kmalbz.database.service
+
+import com.kmalbz.database.DatabaseFactory.dbQuery
+import com.kmalbz.database.model.InputObject
+import com.kmalbz.database.dao.InputObjects
+import com.kmalbz.api.model.ApiObject
+import org.jetbrains.exposed.sql.ResultRow
+import org.jetbrains.exposed.sql.select
+import org.jetbrains.exposed.sql.selectAll
+import org.jetbrains.exposed.sql.transactions.transaction
+import java.time.LocalDate
+
+
+class InputObjectService : IInputObjectService {
+
+    override fun addOne(apiObject: ApiObject) {
+        transaction {
+            InputObject.new {
+                tag = apiObject.tag
+                probability = apiObject.probability
+            }
+        }
+    }
+
+    override suspend fun getAllResultObjects(): List<ApiObject> = dbQuery {
+        InputObjects.selectAll().map { toResultObject(it) }
+    }
+
+    override suspend fun getResultObjectbyTag(tag: String): ApiObject? = dbQuery {
+        InputObjects.select {
+            (InputObjects.tag eq tag)
+        }.mapNotNull { toResultObject(it) }
+            .singleOrNull()
+    }
+
+    override suspend fun getResultObjectbyDate(date: LocalDate): List<ApiObject>? = dbQuery {
+        InputObjects.select {
+            (InputObjects.date eq date)
+        }.mapNotNull { toResultObject(it) }
+    }
+
+    override suspend fun getResultObjectbeforeDate(date: LocalDate): List<ApiObject>? = dbQuery {
+        InputObjects.select {
+            (InputObjects.date less  date)
+        }.mapNotNull { toResultObject(it) }
+    }
+
+    override suspend fun getResultObjectafterDate(date: LocalDate): List<ApiObject>? = dbQuery {
+        InputObjects.select {
+            (InputObjects.date greater  date)
+        }.mapNotNull { toResultObject(it) }
+    }
+
+    override suspend fun getResultObjecGreaterthanProbability(probability: Double): List<ApiObject>? = dbQuery {
+        InputObjects.select {
+            (InputObjects.probability greater  probability)
+        }.mapNotNull { toResultObject(it) }
+    }
+
+    override suspend fun getResultObjecLessthanProbability(probability: Double): List<ApiObject>? = dbQuery {
+        InputObjects.select {
+            (InputObjects.probability less  probability)
+        }.mapNotNull { toResultObject(it) }
+    }
+
+    override suspend fun getResultObjecEqualsProbability(probability: Double): List<ApiObject>? = dbQuery {
+        InputObjects.select {
+            (InputObjects.probability eq  probability)
+        }.mapNotNull { toResultObject(it) }
+    }
+
+    private fun toResultObject(row: ResultRow): ApiObject =
+        ApiObject(
+            tag = row[InputObjects.tag],
+            probability = row[InputObjects.probability]
+        )
+}

src/di/InjectionModule.kt

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+package com.kmalbz.di
+
+import com.kmalbz.database.service.IInputObjectService
+import com.kmalbz.database.service.InputObjectService
+import org.koin.dsl.module
+import org.koin.experimental.builder.singleBy
+
+val injectionModule = module(createdAtStart = true) {
+    singleBy<IInputObjectService,InputObjectService>()
+}